CN105065010A - Shield with-water receiving tunnel hole temporary sealing device and shield with-water receiving tunnel hole temporary sealing method - Google Patents
Shield with-water receiving tunnel hole temporary sealing device and shield with-water receiving tunnel hole temporary sealing method Download PDFInfo
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- CN105065010A CN105065010A CN201510418185.2A CN201510418185A CN105065010A CN 105065010 A CN105065010 A CN 105065010A CN 201510418185 A CN201510418185 A CN 201510418185A CN 105065010 A CN105065010 A CN 105065010A
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Abstract
The invention discloses a shield with-water receiving tunnel hole temporary sealing device, which comprises a plurality of bases, a spring steel plate beam and a plurality of press plates, wherein the bases are uniformly distributed on the circumference of an embedded steel ring; the spring steel plate beam comprises one or a plurality of spring steel plate layers; a plurality of spring steel plates form an annular structure; the length of each spring steel plate is smaller than the radius of the embedded steel ring; the press plates are uniformly distributed on the spring steel plate beam and are in opposite arrangement to the plurality of bases; and one end of each press plate is bent at a certain radian in a direction towards a receiving well. The invention also discloses a shield with-water receiving tunnel hole temporary sealing method. The temporary sealing device achieves the goal of blocking the stratum water and soil loss through tightly attaching the spring steel plates onto the shield outer wall and the duct piece outer wall by the self rebounding force. The temporary sealing method solves the problem of tunnel hole sealing implementation difficulty under the with-water receiving condition, and has the advantages that the operation is simple; the labor is reduced; and the efficiency is improved, so that a good tunnel hole temporary sealing effect is achieved.
Description
Technical field
The invention belongs to shield tunnel project technical field, be specifically related to portal temporary sealing devices and encapsulating method that a kind of shield structure band water receives construction.
Background technology
Current city shield tunnel is in the high speed development stage, shield-tunneling construction mode is constantly brought forth new ideas, shield structure receive mode is also updated to reduce construction risk, water is wherein with to receive the risk that engineering method significantly reduces the reception of shield structure, especially at poor stability, in the stratum that water content is more, band water receives form of construction work and popularizes gradually, traditional reception portal hermetically-sealed construction is by rubber cord, folding pressing plate is formed, the mode adopting wire rope to tighten up realizes sealing, but when being with water to receive, rubber cord protection difficulty, cracky, and be with performance difficulty under water reception condition, execute-in-place difficulty is larger.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above and/or defect, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of shield structure band water and receives portal temporary sealing devices, and steel spring plate utilizes own resilience to be adjacent to the object of shield structure outer wall and section of jurisdiction outer wall realization blocking-up stratum soil erosion.
A further object of the invention receives portal temporary sealing method by shield structure band water, and under solution band water reception condition, the problem of portal sealing performance difficulty, simple to operate, reduces manpower, raise the efficiency, to obtain better interim portal sealing effectiveness.
In order to realize according to these objects of the present invention and other advantage, provide a kind of shield structure band water and receive portal temporary sealing devices, it is arranged on the pre-buried steel loop of the portal of received well, and described shield structure enters through described temporary sealing devices the described received well receiving described shield structure, comprising:
Multiple base, it is evenly distributed on described pre-buried steel loop near the side of described received well circumferentially;
Steel spring plate bundle, it comprises one or more spring steel flaggy, any one spring steel flaggy is made up of multiple steel spring plate along the circumferential equal length be evenly distributed on described multiple base of described pre-buried steel loop, and two of arbitrary neighborhood steel spring plate abutting contact form circulus to make described spring steel flaggy, wherein, for any one steel spring plate, its one end is fixed on base, the other end is free end, and the length of described steel spring plate is less than the radius of described pre-buried steel loop; Multiple pressing plate, it to be evenly distributed on described steel spring plate bundle and to be oppositely arranged with described multiple base, and described pressing plate bends with certain radian to described received well direction near one end of the free end of described steel spring plate.
Preferably, described shield structure band water receives portal temporary sealing devices, described steel spring plate bundle comprises: multiple spring steel flaggy, it comprises the first steel spring plate group and the second steel spring plate group that superpose installation along described received well direction successively, described first steel spring plate group comprises multiple the first spring steel flaggy be oppositely arranged, the length forming the steel spring plate of described multiple first spring steel flaggy is consistent, described second steel spring plate group comprises multiple the second spring steel flaggy be crisscross arranged, the length forming the steel spring plate of described second spring steel flaggy is successively decreased along described received well direction, and be all less than the length of the steel spring plate forming described multiple first spring steel flaggy.
Preferably, described shield structure band water receives portal temporary sealing devices, the length forming the steel spring plate of described first spring steel flaggy is set to: described shield structure is through described pre-buried steel loop, described first spring steel flaggy and described shield structure interfere, when described shield structure installs section of jurisdiction, described first spring steel flaggy and described section of jurisdiction interfere.
Preferably, described shield structure band water receives portal temporary sealing devices, described multiple base is provided with multiple first through hole, one end of described steel spring plate bundle is provided with multiple second through hole, described multiple pressing plate is provided with multiple third through-hole, and securing member is fixedly connected with described pressing plate with third through-hole one end by described base, described steel spring plate bundle through described first through hole, the second through hole.
Preferably, described shield structure band water receives portal temporary sealing devices, described first through hole is the bellmouth that inside is equipped with dormant bolt, described dormant bolt is connected with pad nut thread with after described third through-hole through described first through hole, described second through hole, is fixedly connected with one end of described base, described steel spring plate bundle with described pressing plate.
Preferably, described shield structure band water receives portal temporary sealing devices, and described pre-buried steel loop is provided with the first injected hole, and it is communicated with the built-in slip casting pipe be embedded in inwall.
Preferably, described shield structure band water receives portal temporary sealing devices, and described steel spring plate bundle comprises 3 described first spring steel flaggies and 5 described second spring steel flaggies.
Preferably, described shield structure band water receives portal temporary sealing devices, and the material of described steel spring plate bundle is 65Mn.
Preferably, described shield structure band water receives portal temporary sealing devices, and for steel spring plate described in any one, its thickness is 1mm.
Described shield structure band water receives an encapsulating method for portal temporary sealing devices, comprises the following steps:
The first, described pre-buried steel loop is set at the portal place of described received well, and described first injected hole and described Grouting Pipe are set, at the described base of circumferentially welding of described pre-buried steel loop, described steel spring plate bundle and described pressing plate are installed successively, to compress described steel spring plate bundle, carry out cutting of described portal when not hindering described steel spring plate bundle;
The second, in received well, backfill sand, and pour water to appointment liquid level;
Three, cutterhead is stopped to rotate when described shield structure releases described portal, after described shield structure contacts described steel spring plate bundle, described steel spring plate is tightened the outer wall that pastes described shield structure and the space beyond it is separated into two separate space, the grouting behind shaft or drift lining hole of described shield structure is to not through with described received well space slip casting, and the shield ventral brush to described shield structure departs from described steel spring plate bundle;
Four, after described shield structure is released, be close to the outer wall of last a slice section of jurisdiction that described shield structure is installed after the resilience of described steel spring plate bundle and the space beyond it is separated into two separate space, secondary grouting hole and described first injected hole of described section of jurisdiction carry out portal shutoff slip casting to not through with described received well space simultaneously, form temporary sealing system.
The present invention at least comprises following beneficial effect:
First, temporary sealing devices of the present invention is arranged on pre-buried steel loop, by the circumference at pre-buried steel loop successively mounting seat, steel spring plate bundle and pressing plate, one end of steel spring plate bundle is made to be fixed on pre-buried steel loop, shield structure is tightened through portal steel spring plate and is pasted shield structure outer wall circumference, mud between the outer wall of shield structure and surrounding soil dodge gate steel loop is stopped with extraneous, when shield structure moves on, last group section of jurisdiction is installed at portal place, steel spring plate is tightened and is pasted section of jurisdiction outer wall circumference, mud between section of jurisdiction and surrounding soil or portal steel loop stops with extraneous, first injected hole is to the space slip casting of portal side, realize the object of temporary sealing,
Second, floor installation at pre-buried steel loop circumferentially, each steel spring plate can both be arranged on base to be fixed on pre-buried steel loop, spring steel flaggy comprises the steel spring plate of multiple abutting contact, but connect between steel spring plate and be not fixedly connected with, easy for removal and installation, radius is less than the circulus of pre-buried steel loop, be convenient to the sectional layer forming interception mud, pressing plate and base are relative one by one, make the one end of the steel spring plate be clipped in the middle tightly fixing, form the section of sealing, other one end of pressing plate bends with certain radian, when ensureing that steel spring plate bends and pressing plate contact surface, prevent steel spring plate from fractureing,
3rd, steel spring plate bundle comprises multilayer, length unanimously and the first the longest spring steel flaggy and shield structure, section of jurisdiction takes the lead in contacting, the steel plate layer that multiple length is consistent is oppositely arranged, ensure that mud and steel spring plate are when identical contact area, improve armor plate strength and interdiction capability, the second spring steel flaggy that length is successively decreased and shield structure, section of jurisdiction does not contact, but under pressing plate function, be close to the first spring steel flaggy, give resiliency supported adhesive force, stagger enhances the intensity of the first spring steel flaggy, every one deck and last layer are dislocatedly distributed, be crisscross arranged, seam dislocation shutoff between steel plate, enhance the sealability of steel spring plate bundle, the length of the first spring steel flaggy is set to interfere with shield structure, section of jurisdiction outer wall, can also contact and cling to the outer wall of shield structure, section of jurisdiction when spring steel flaggy is bent, and forms sealant,
Four, base is fixed by welding on pre-buried steel loop, base, steel spring plate bundle and pressing plate has through hole, three is fixedly connected with by securing member; First through hole is provided with dormant bolt, successively through steel spring plate bundle and pressing plate, then nut screwing clamping, realizes detachably being fixedly connected with of three;
Five, 3 the first spring steel flaggies make the thickness of the steel spring plate contacted with shield structure, section of jurisdiction, intensity just on the basis of bearing hydraulic pressure interdiction capability best, 5 the second spring steel flaggies make the steel spring plate do not contacted with shield structure, section of jurisdiction just to oppress on the first spring steel flaggy and do not hinder the bending of the first spring steel flaggy, form powerful support force; The material steel plate that to be 65Mn be through special process process, has good elasticity, crooking ability and resilience; The thickness of each steel spring plate is 1mm, makes the intensity that each steel spring plate has had, and can also bend and resilience during multi-layer spring steel plate superposition formation first spring steel flaggy;
6th, temporary sealing method of the present invention, this a period of time before hanging out is removed to shield structure after treating arrival received well, portal place cannot carry out concrete pouring construction, therefore need portal temporary sealing, use temporary sealing devices of the present invention, be installed on pre-buried steel loop, backfill sand, pour water and prepare the reception of band water, shield structure is through pre-buried steel loop, then last group section of jurisdiction is installed, successively by shield structure, section of jurisdiction outer wall is separated into two spaces, after shield structure afterbody arrives pre-buried steel loop, main slip casting is carried out in shield machine, the slip casting of portal place built-in slip casting pipe is as auxiliary slip casting, realize portal shutoff slip casting, prevent erosion formation surface collapse, concrete structure permanent seal for portal afterwards forms sealing basis, method of the present invention is simple to operate when being with water to receive, good sealing effect, decrease manpower, material resources, only need the installation of early stage to sealing device.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the structural representation of temporary sealing devices of the present invention;
Fig. 2 is the scheme of installation of steel spring plate bundle of the present invention;
Fig. 3 is the partial enlarged drawing of steel spring plate bundle of the present invention;
Fig. 4 is elevation and the lateral view of base of the present invention;
Fig. 5 is elevation and the lateral view of pressing plate of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to manual word to make those skilled in the art.
As shown in Fig. 1 ~ 5, the invention provides a kind of shield structure band water and receive portal temporary sealing devices, it is arranged on the pre-buried steel loop 3 of the portal of received well, and described shield structure enters through described temporary sealing devices the described received well receiving described shield structure, comprising:
Multiple base 5, it is evenly distributed on described pre-buried steel loop 3 near the side of described received well circumferentially;
Steel spring plate bundle 6, it comprises one or more spring steel flaggy, any one spring steel flaggy is made up of multiple steel spring plate along the circumferential equal length be evenly distributed on described multiple base 5 of described pre-buried steel loop 3, and two of arbitrary neighborhood steel spring plate abutting contact form circulus to make described spring steel flaggy, wherein, for any one steel spring plate, its one end is fixed on base 5, the other end is free end, and the length of described steel spring plate is less than the radius of described pre-buried steel loop 3; Multiple pressing plate 7, it to be evenly distributed on described steel spring plate bundle 6 and to be oppositely arranged with described multiple base 5, and described pressing plate 7 bends with certain radian to described received well direction near one end of the free end of described steel spring plate.
In technique scheme, temporary sealing devices is arranged on pre-buried steel loop 3, by the circumference at pre-buried steel loop 3 successively mounting seat 5, steel spring plate bundle 6 and pressing plate 7, one end of steel spring plate bundle 6 is made to be fixed on pre-buried steel loop 3, shield structure is close to shield structure outer wall circumference through portal steel spring plate bundle 6, mud between the outer wall of shield structure and surrounding soil dodge gate steel loop is stopped with extraneous, when shield structure moves on, last group section of jurisdiction is installed at portal place, steel spring plate bundle 6 is close to section of jurisdiction outer wall circumference, mud between section of jurisdiction and surrounding soil or portal steel loop stops with extraneous, first injected hole is to the space slip casting of portal side, Water And Earth Pressures is balanced, realize the object of temporary sealing.Base 5 is arranged on pre-buried steel loop 3 circumferentially, each steel spring plate can both be arranged on base 5 to be fixed on pre-buried steel loop 3, spring steel flaggy comprises the steel spring plate of multiple abutting contact, but connect between steel spring plate and be not fixedly connected with, easy for removal and installation, radius is less than the circulus of pre-buried steel loop 3, be convenient to the sectional layer forming interception mud, pressing plate 7 is relative one by one with base 5, make the one end of the steel spring plate be clipped in the middle tightly fixing, form the section of sealing, other one end of pressing plate 7 bends with certain radian, when ensureing that steel spring plate bends and pressing plate 7 contact surface, prevent steel spring plate from fractureing.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, described steel spring plate bundle 6 comprises: multiple spring steel flaggy, it comprises the first steel spring plate group 61 and the second steel spring plate group 62 superposing installation along described received well direction successively, described first steel spring plate group 61 comprises multiple the first spring steel flaggy be oppositely arranged, the length forming the steel spring plate of described multiple first spring steel flaggy is consistent, described second steel spring plate group 62 comprises multiple the second spring steel flaggy be crisscross arranged, the length forming the steel spring plate of described second spring steel flaggy is successively decreased along described received well direction, and be all less than the length of the steel spring plate forming described multiple first spring steel flaggy.Steel spring plate bundle 6 comprises multilayer, length unanimously and the first the longest spring steel flaggy and shield structure, section of jurisdiction takes the lead in contacting, the steel plate layer that multiple length is consistent is oppositely arranged, ensure that mud and steel spring plate are when identical contact area, improve armor plate strength and interdiction capability, the second spring steel flaggy that length is successively decreased and shield structure, section of jurisdiction does not contact, but under pressing plate 7 acts on, be close to the first spring steel flaggy, give resiliency supported adhesive force, stagger enhances the intensity of the first spring steel flaggy, every one deck and last layer are dislocatedly distributed, be crisscross arranged, seam dislocation shutoff between steel plate, enhance the sealability of steel spring plate bundle 6.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, the length forming the steel spring plate of described first spring steel flaggy is set to: described shield structure is when described pre-buried steel loop 3, described first spring steel flaggy and described shield structure interfere, when described shield structure installs section of jurisdiction, described first spring steel flaggy and described section of jurisdiction interfere.The length of the first spring steel flaggy is set to interfere with shield structure, section of jurisdiction outer wall, can also contact and cling to the outer wall of shield structure, section of jurisdiction when spring steel flaggy is bent, and forms annular seal layer.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, described multiple base 5 is provided with multiple first through hole, one end of described steel spring plate bundle 6 is provided with multiple second through hole, described multiple pressing plate 7 is provided with multiple third through-hole, and securing member is fixedly connected with described pressing plate 7 with third through-hole one end by described base 5, described steel spring plate bundle 6 through described first through hole, the second through hole.Base 5 is fixed by welding on pre-buried steel loop 3, base 5, steel spring plate bundle 6 and pressing plate 7 has through hole, three is fixedly connected with by securing member.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, described first through hole is the bellmouth that inside is equipped with dormant bolt 4, described dormant bolt 4 is threaded with pad nut 8 through after described first through hole, described second through hole and described third through-hole, is fixedly connected with one end of described base 5, described steel spring plate bundle 6 with described pressing plate 7.First through hole is provided with dormant bolt 4, and successively through steel spring plate bundle 6 and pressing plate 7, then nut 8 is tightened, and realizes detachably being fixedly connected with of three.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, and described pre-buried steel loop 3 is provided with the first injected hole, and it is communicated with the built-in slip casting pipe 2 be embedded in inwall 1.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, and described steel spring plate bundle 6 comprises 3 described first spring steel flaggies and 5 described second spring steel flaggies.3 the first spring steel flaggies make thickness, intensity interdiction capability the best on the basis of bearing hydraulic pressure just of the steel spring plate contacted with shield structure, section of jurisdiction, 5 the second spring steel flaggies make the steel spring plate do not contacted with shield structure, section of jurisdiction just to oppress on the first spring steel flaggy and do not hinder the bending of the first spring steel flaggy, form powerful support force.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, and the material of described steel spring plate bundle 6 is 65Mn.The material steel plate that to be 65Mn be through special process process, has good elasticity, crooking ability and resilience.
In another kind of technical scheme, described shield structure band water receives portal temporary sealing devices, and for steel spring plate described in any one, its thickness is 1mm.The thickness of each steel spring plate is 1mm, makes the intensity that each steel spring plate has had, and during multi-layer spring steel plate superposition formation first spring steel flaggy, can also bend and resilience.
Described shield structure band water receives an encapsulating method for portal temporary sealing devices, comprises the following steps:
The first, described pre-buried steel loop 3 is set at the portal place of described received well, and described first injected hole and described Grouting Pipe are set, at the described base 5 of circumferentially welding of described pre-buried steel loop 3, described steel spring plate bundle 6 and described pressing plate 7 are installed successively, to compress described steel spring plate bundle 6, carry out cutting of described portal when not hindering described steel spring plate bundle 6;
The second, in received well, backfill sand, and pour water to appointment liquid level;
Three, cutterhead is stopped to rotate when described shield structure releases described portal, after described shield structure contacts described steel spring plate bundle 6, described steel spring plate bundle 6 is close to the outer wall of described shield structure and the space beyond it is separated into two separate space, the grouting behind shaft or drift lining hole of described shield structure is to not through with described received well space slip casting, and the shield ventral brush to described shield structure departs from described steel spring plate bundle 6;
Four, after described shield structure is released, be close to the outer wall of last a slice section of jurisdiction that described shield structure is installed after the resilience of described steel spring plate bundle 6 and the space beyond it is separated into two separate space, secondary grouting hole and described first injected hole of described section of jurisdiction carry out portal shutoff slip casting to not through with described received well space simultaneously, form temporary sealing system.
Temporary sealing method of the present invention, this a period of time before hanging out is removed to shield structure after treating arrival received well, portal place cannot carry out concrete pouring construction, therefore need portal temporary sealing, use temporary sealing devices of the present invention, be installed on pre-buried steel loop 3, backfill sand, pour water and prepare the reception of band water, shield structure is through pre-buried steel loop 3, then last group section of jurisdiction is installed, successively by shield structure, section of jurisdiction outer wall is separated into two spaces, after shield structure afterbody arrives pre-buried steel loop 3, main slip casting is carried out in shield machine, the slip casting of portal place built-in slip casting pipe 2 is as auxiliary slip casting, realize portal shutoff slip casting, prevent erosion formation surface collapse, concrete structure permanent seal for portal afterwards forms sealing basis, method of the present invention is simple to operate when being with water to receive, good sealing effect, decrease manpower, material resources, only need the installation of early stage to sealing device.
The technical solution used in the present invention is: a kind of shield tunnel door seal device, comprises inwall 1, and inwall 1 is provided with pre-buried steel loop 3, pre-buried steel loop 3 is provided with one waterproof construction, waterproof construction comprises base 5,8 layers of steel spring plate, pressing plate 7 and clamp nut 8.Described pre-buried steel loop 3 is reserved with injected hole.
Described waterproof construction base 5 is evenly arranged along pre-buried steel loop 3 end face ring to a circle and welds with pre-buried steel loop 3, and base 5 is furnished with 6 bellmouths, each bellmouth is fixed with 1 dormant bolt 4.
Steel spring plate totally 8 layers, 8 layers of 1.0mm thickness 65Mn steel spring plate interlock to superpose and are mounted on the dormant bolt 4 of base 5, and wherein interior three layers is fundamental length, and outer five layers successively shorten, give the design of Sealing Structure of resiliency supported adhesive force.
The corresponding each base 5 of each pressing plate 7, is depressed on steel spring plate, and with nut 8 by fastening for pressing plate 7.Pressing plate 7 has certain radian to turn up by radially inner side position.
One utilizes above-mentioned shield tunnel door sealing to carry out tunnel and receives portal encapsulating method, comprises the following steps:
(1) installation of shield tunnel door seal device, is completed;
(2), backfill sand in received well, and pour water to appointment liquid level;
(3), shield machine is pushed out to shield ventral brush and is separated with waterproof construction steel spring plate;
(4) secondary grouting hole, section of jurisdiction and pre-buried steel loop 3 injected hole note dual slurry shutoff portal, is utilized;
(5), portal sealing device of the present invention is by the elastic force effect automatic rebounding of steel spring plate bundle 6 self and be pressed on section of jurisdiction, to reach the object blocking stratum dregs and run off.
The present invention includes inwall 1, inwall 1 is provided with pre-buried steel loop 3 and built-in slip casting pipe 2, pre-buried steel loop 3 front end face and waterproof construction base 5 seal welding, base 5 is equidistant to be welded on pre-buried steel loop 3 circumference one circle, and perforate on each base 5 is also provided with dormant bolt 4, and steel spring plate bundle 6 superposition that interlocks is arranged on dormant bolt 4, interior three layers is fundamental length, outer five layers of length are successively decreased successively, and the corresponding base 5 of pressing plate 7 is arranged on holddown spring steel plate on dormant bolt 4, finally tightens hold-down nut 8.
The implementation step realizing tunnel shielding portal encapsulating method by above-mentioned shield tunnel door seal device is as follows:
(1) complete the installation of shield structure inner tunnel portal sealing device, comprise the following steps:
First complete the construction of inwall 1, in portal position according to shield launching dimensional requirement, the pre-buried steel loop 3 of the domain is set, and reserved injected hole is set at inwall 1, security protection is carried out to reserved injected hole, prevents duct from blocking.
Sealed base 5 is located and seal welding in portal pre-buried steel loop 3 end face circumferentially.
Corresponding for steel spring plate first floor base 5 bolt is installed, second layer steel spring plate is installed relative to the first floor steel spring plate bolt that to stagger along pre-buried steel loop 3 hoop orientation, in like manner, the relative second layer steel spring plate of the third layer steel spring plate bolt that staggers is installed, in like manner, rear five layers of steel spring plate are staggered installation of successively, and interior three layers of steel spring plate are fundamental length, length is the longest, and rear five layers of steel spring plate length are successively decreased successively.
Corresponding every block base 5 position of every block pressur plate 7, is installed on dormant bolt 4, then installs pad nut 8, holddown spring steel plate.
Carry out portal to cut, cut in process and safeguard measure is taked to steel spring plate, after having cut, to cutting thing cleaning.
In received well, backfill sand, and pour water to appointment liquid level.
(2), the propelling of shield machine: shield machine stops cutterhead rotating after releasing portal, prevent from destroying Packing spring steel plate, after shield machine contact spring steel plate, under the outer injected hole of shield machine wall is infused in self rebound effect, be adjacent to shield machine outer wall, reach the object preventing stratum sand running-down, after shield machine is released, steel spring plate is adjacent to section of jurisdiction outer wall under self rebound effect, utilize the reserved injected hole that secondary grouting hole, section of jurisdiction, portal place and inwall 1 are offered to carry out slip casting shutoff simultaneously, form sealing system.
The space between Structural Test of Tunnel Segments and surrounding soil or portal steel loop is filled in the effect of slip casting, and prevent erosion formation surface collapse.Portal shutoff slip casting is carried out after shield structure afterbody arrives pre-buried steel loop 3.Slip casting is mainly carried out in shield machine, and the slip casting of portal place built-in slip casting pipe 2 is as ancillary method.
Although embodiment of the present invention are open as above, but it is not restricted to listed in manual and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. shield structure band water receives a portal temporary sealing devices, and it is arranged on the pre-buried steel loop of the portal of received well, and described shield structure enters through described temporary sealing devices the described received well receiving described shield structure, it is characterized in that, comprising:
Multiple base, it is evenly distributed on described pre-buried steel loop near the side of described received well circumferentially;
Steel spring plate bundle, it comprises one or more spring steel flaggy, any one spring steel flaggy is made up of multiple steel spring plate along the circumferential equal length be evenly distributed on described multiple base of described pre-buried steel loop, and two of arbitrary neighborhood steel spring plate abutting contact form circulus to make described spring steel flaggy, wherein, for any one steel spring plate, its one end is fixed on base, the other end is free end, and the length of described steel spring plate is less than the radius of described pre-buried steel loop;
Multiple pressing plate, it to be evenly distributed on described steel spring plate bundle and to be oppositely arranged with described multiple base, and described pressing plate bends with certain radian to described received well direction near one end of the free end of described steel spring plate.
2. shield structure band water as claimed in claim 1 receives portal temporary sealing devices, it is characterized in that, described steel spring plate bundle comprises: multiple spring steel flaggy, it comprises the first steel spring plate group and the second steel spring plate group that superpose installation along described received well direction successively, described first steel spring plate group comprises multiple the first spring steel flaggy be oppositely arranged, the length forming the steel spring plate of described multiple first spring steel flaggy is consistent, described second steel spring plate group comprises multiple the second spring steel flaggy be crisscross arranged, the length forming the steel spring plate of described second spring steel flaggy is successively decreased along described received well direction, and be all less than the length of the steel spring plate forming described multiple first spring steel flaggy.
3. shield structure band water as claimed in claim 2 receives portal temporary sealing devices, it is characterized in that, the length forming the steel spring plate of described first spring steel flaggy is set to: described shield structure is through described pre-buried steel loop, described first spring steel flaggy and described shield structure interfere, when described shield structure installs section of jurisdiction, described first spring steel flaggy and described section of jurisdiction interfere.
4. shield structure band water as claimed in claim 3 receives portal temporary sealing devices, it is characterized in that, described multiple base is provided with multiple first through hole, one end of described steel spring plate bundle is provided with multiple second through hole, described multiple pressing plate is provided with multiple third through-hole, and securing member is fixedly connected with described pressing plate with third through-hole one end by described base, described steel spring plate bundle through described first through hole, the second through hole.
5. shield structure band water as claimed in claim 4 receives portal temporary sealing devices, it is characterized in that, described first through hole is the bellmouth that inside is equipped with dormant bolt, described dormant bolt is connected with pad nut thread with after described third through-hole through described first through hole, described second through hole, is fixedly connected with one end of described base, described steel spring plate bundle with described pressing plate.
6. shield structure band water as claimed in claim 5 receives portal temporary sealing devices, and it is characterized in that, described pre-buried steel loop is provided with the first injected hole, and it is communicated with the built-in slip casting pipe be embedded in inwall.
7. shield structure band water as claimed in claim 6 receives portal temporary sealing devices, and it is characterized in that, described steel spring plate bundle comprises 3 described first spring steel flaggies and 5 described second spring steel flaggies.
8. shield structure band water as claimed in claim 7 receives portal temporary sealing devices, and it is characterized in that, the material of described steel spring plate bundle is 65Mn.
9. shield structure band water as claimed in claim 8 receives portal temporary sealing devices, and it is characterized in that, for steel spring plate described in any one, its thickness is 1mm.
10. shield structure band water as claimed in any one of claims 1-9 wherein receives an encapsulating method for portal temporary sealing devices, it is characterized in that, comprises the following steps:
The first, described pre-buried steel loop is set at the portal place of described received well, and described first injected hole and described Grouting Pipe are set, at the described base of circumferentially welding of described pre-buried steel loop, described steel spring plate bundle and described pressing plate are installed successively, to compress described steel spring plate bundle, carry out cutting of described portal when not hindering described steel spring plate bundle;
The second, in received well, backfill sand, and pour water to appointment liquid level;
Three, cutterhead is stopped to rotate when described shield structure releases described portal, after described shield structure contacts described steel spring plate bundle, described steel spring plate is tightened the outer wall that pastes described shield structure and the space beyond it is separated into two separate space, the grouting behind shaft or drift lining hole of described shield structure is to not through with described received well space slip casting, and the shield ventral brush to described shield structure departs from described steel spring plate bundle;
Four, after described shield structure is released, be close to the outer wall of last a slice section of jurisdiction that described shield structure is installed after the resilience of described steel spring plate bundle and the space beyond it is separated into two separate space, secondary grouting hole and described first injected hole of described section of jurisdiction carry out portal shutoff slip casting to not through with described received well space simultaneously, form temporary sealing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418185.2A CN105065010B (en) | 2015-07-16 | 2015-07-16 | A kind of shield band water receives portal temporary sealing devices and encapsulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418185.2A CN105065010B (en) | 2015-07-16 | 2015-07-16 | A kind of shield band water receives portal temporary sealing devices and encapsulating method |
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| CN106837359A (en) * | 2017-02-09 | 2017-06-13 | 中铁十局集团城市轨道工程有限公司 | A kind of arrival portal sealing device and seal construction method |
| CN106917631A (en) * | 2017-04-10 | 2017-07-04 | 中铁隧道勘测设计院有限公司 | Supporting type tunnel linkage section sealing device in a kind of water |
| CN108915705A (en) * | 2018-08-09 | 2018-11-30 | 中铁局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN110186792A (en) * | 2019-06-20 | 2019-08-30 | 中国电建集团成都勘测设计研究院有限公司 | Double-shielded TBM face rock mass strength device for quick testing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106837359A (en) * | 2017-02-09 | 2017-06-13 | 中铁十局集团城市轨道工程有限公司 | A kind of arrival portal sealing device and seal construction method |
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| CN108915705A (en) * | 2018-08-09 | 2018-11-30 | 中铁局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN108915705B (en) * | 2018-08-09 | 2019-10-22 | 中铁一局集团有限公司 | A kind of baffle grouting construction method blocked for shield export & import leak |
| CN110186792A (en) * | 2019-06-20 | 2019-08-30 | 中国电建集团成都勘测设计研究院有限公司 | Double-shielded TBM face rock mass strength device for quick testing |
| CN110186792B (en) * | 2019-06-20 | 2023-12-05 | 中国电建集团成都勘测设计研究院有限公司 | Rapid rock mass strength testing device for double-shield TBM tunnel face |
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