CN110005449A - Open type TBM circle steel frame construction and its installation method - Google Patents
Open type TBM circle steel frame construction and its installation method Download PDFInfo
- Publication number
- CN110005449A CN110005449A CN201910319001.5A CN201910319001A CN110005449A CN 110005449 A CN110005449 A CN 110005449A CN 201910319001 A CN201910319001 A CN 201910319001A CN 110005449 A CN110005449 A CN 110005449A
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- steelframe
- arc
- steel frame
- mounting hole
- open type
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000009434 installation Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to field of track traffic, specifically disclose open type TBM circle steel frame construction, including several capable assemblings at the arc steelframe of round steelframe, it is connected between several arc steelframes, the connection unit of spacing between adjustable two adjacent arcs shaped steel frame adjacent end portions is equipped between arc steelframe and arc steelframe, the quantity of connection unit is more than or equal to 1.Open type TBM circle steel frame construction in this programme can be fitted closely after mounting with the palisades in tunnel, can the palisades to tunnel carry out stable support.
Description
Technical field
The invention belongs to field of track traffic, and in particular to open type TBM circle steel frame construction and its installation method.
Background technique
With the continuous development of urban construction, also increasingly increase severely to urban rail transit construction demand.On the basis of rail traffic
Construction is the most important thing of orbit construction, while carrying out the excavation in tunnel, it is ensured that the safety of construction is carried out to tunnel
After excavation, need to carry out the palisades in tunnel the installation of the support constructions such as reinforcing and arch.Support construction in tunnel is usually adopted
With conventional " well " font steel support structure, slowly, prestress application is difficult to operate, space hold face for this support construction installation
Product is big, and personnel are current inconvenient after installation, and Construction traffic is impassable, and construction period can not carry out track laying and other constructions are made
Industry seriously affects the duration.
So existing mostly use open type support construction to be supported construction tunnel inner wall at present, open type support construction is more
Annularly, Construction traffic and construction equipment pass through, and are convenient for track laying and other construction operations.Common open type support
The problem of structure is when on the palisades being mounted in tunnel, open type support construction unbalance stress, and support performance declines, when spacious
When the enabling capabilities of open type support construction drop to the limit, it is easy to cause tunnel that the dangerous situations such as rock mass collapsing occur, it can be very big
Threaten the security of the lives and property.
Summary of the invention
The invention is intended to provide a kind of open type TBM circle steel frame construction that can be fitted closely with the palisades in tunnel.
In order to achieve the above object, base case of the invention is as follows: open type TBM circle steel frame construction, including several
Capable assembling connects between several arc steelframes at the arc steelframe of round steelframe, and being equipped between arc steelframe and arc steelframe can
The connection unit of spacing between two adjacent arcs shaped steel frame adjacent end portions is adjusted, the quantity of connection unit is more than or equal to 1.
The principle and its advantage of base case: when installing open type TBM circle steel frame construction, each arc steelframe is successively
It is installed, connection unit can be passed through when installation and adjust the distance between two adjacent arcs shaped steel frame adjacent end portions, Jin Erwei
The installation radian for adjusting arc steelframe, when, there are when biggish gap, can leading between the end of arc steelframe and the palisades in tunnel
It crosses connection unit and slightly increases the distance between two arc steelframe adjacent end portions；When two adjacent arcs shaped steel frame adjacent end portions it
Between distance it is excessive when, the distance between two arc steelframe adjacent end portions can be slightly reduced by connection unit.It can be effective
Avoid common open type support construction from being bonded untight situation with the palisades in tunnel, allow the outer wall of entire round steelframe with
The palisades fitting in tunnel is close, allows being more uniformly stressed of entire round steelframe, and improves the safety supported to tunnel palisades.
Further, connection unit includes connecting cleat, and connecting cleat is slidably connected with an at least steelframe, and the place of being slidably connected is set
There is lock piece.
When the spacing to two arc-shaped steel frame end portions is adjusted, the position of connecting cleat keeps opposing stationary, and two
The opposite surface with connecting cleat in the end of arc steelframe is slided, and is adjusted after the end of arc steelframe to corresponding position, is used
Two arc steelframes and connecting cleat are fixed up by two lock pieces；When needing to adjust again, can relax lock piece, right
Two arc-shaped steel frame end portions the distance between further adjusted, enhance the adjustability of entire round steelframe；Connect simultaneously
Fishplate can have the function of that supplement is reinforced to the combination of round steelframe.
Further, the quantity of connecting cleat is 2, and lock piece includes bolt and the nut with bolt cooperation, connection folder
Plate is equipped with the first mounting hole and the second mounting hole of arc, and one of arc steelframe is set on one end of the first mounting hole
There is the first matching hole with the cooperation of the first mounting hole, another arc steelframe is equipped with and second close to one end of the second mounting hole
Second matching hole of mounting hole cooperation, the first mounting hole, the second mounting hole, the first matching hole and the second matching hole can be by bolts
It passes through.
Two connecting cleats are mounted on two arc steelframes, compared to holding for two connecting cleat of connecting cleat
Pressure energy power is stronger, and the enabling capabilities of finally formed circle steelframe further enhance；It is being fixedly connected with clamping plate and arc-shaped steel simultaneously
When frame, using the structure of bolt and nut, bolt can pass through the first mounting hole, the second mounting hole, the first matching hole and
At second matching hole, the axle portion of bolt can be at the first mounting hole and the second mounting hole to connecting cleat and two arc steelframes
It is reinforced at first matching hole and the second matching hole.
Further, the cross section of arc steelframe is in the shape of an " I ", and the cross section of connecting cleat is in " (" font, arcuately steel
The vertical center line of frame cross section is arranged symmetrically, and there are two connecting cleats, and the side of connecting cleat and the side of arc steelframe are pasted
It closes.
When being fixedly connected with clamping plate and arc steelframe, two connecting cleats are located at the two sides of arc steelframe, bolt and nut
End face offset with two connecting cleats, clamping force is uniformly transferred on arc steelframe two sides by two connecting cleats, makes arc
The left and right sides uniform force of shaped steel frame；The cross section of arc steelframe is in the shape of an " I " simultaneously, and the cross section of connecting cleat is in
" (" font is adequately bonded convenient for the side of connecting cleat with the side of arc steelframe, improves strong to the support of steelframe wing plate
Degree, at the same connecting cleat bevel edge it is extensible exceed steelframe, realize the greater area of supporting role to tunnel inner wall, also allow arc
The two sides of shaped steel frame are more uniformly stressed.
Further, the top and bottom of connecting cleat cross section are obliquely installed, and gradient is 1:6.
After connecting cleat is connect with arc steelframe, between the end of two arc steelframes gap if it exists, connects at this time
The clamping plate place of being obliquely installed is in an inclined-plane, can supplement gap location, can be set at the inclination of connecting cleat to the processing of process
Standby or vehicle is supported.
Further, the arc angle of arc steelframe is equal.
Since the arc angle of arc steelframe is equal, in the installation and maintenance replacement for carrying out arc steelframe, arc steelframe
Interchangeability it is stronger；Packed and transported is carried out simultaneously convenient for the arc steelframe to same specification.
Further, the quantity of arc steelframe is 5 in every Pin circle steelframe, and the central angle of arc steelframe is 72 °.
The moderate number of arc steelframe, convenient for carrying out packed and transported to round steelframe.
Further, a kind of installation method for open type TBM circle steel frame construction, comprising the following steps:
Step 1: digging tunnel, hang steel mesh at the palisades in tunnel；
Step 2: setting anchor pole, anchor pole is supported the palisades in tunnel；
Step 3: the first Pin circle steelframe being installed, several arc steelframes are connected, to not using connection after connection
The junction of unit carries out three side weld all arounds；Then two connecting cleats are mounted on the arc steelframe equipped with the first matching hole and set
There are the arc steelframe two sides of the second matching hole, and the first mounting hole on connecting cleat is opposite with the first matching hole, connecting cleat
On the second mounting hole it is opposite with the second matching hole；
Step 4: preparing two bolts, one of them is inserted into opposite the first matching hole and the first mounting hole, another
It is a to be inserted into opposite the second matching hole and the second mounting hole；Then it adjusts at connecting cleat between two arc-shaped steel frame end portions
Spacing, fit closely the palisades in round steelframe and tunnel；After the spacing between two arc-shaped steel frame end portions determines, use
Two nuts fix two bolts, carry out locking, and the side of connecting cleat to the spacing between two arc-shaped steel frame end portions
It is fitted closely with the side of arc steelframe；
Step 5: repeating step 3 and step 4, the 2nd to N Pin circle steelframe is installed, and between every Pin circle steelframe
Spacing is 0.7-0.8m.
The utility model has the advantages that installing steel mesh on the palisades in tunnel in 1, step 1, the palisades in tunnel can be prevented to be fixed
Support；It can prevent the rubble of fritter from falling simultaneously, reduce the danger during constructing tunnel；It, can be to tunnel simultaneously in step 2
Palisades further supported；2, in step 3, three sides is carried out in the part of the disconnected unit connection to round steelframe and are enclosed
Weldering, multiple arcs steelframe is in integrated after welding, can be reinforced to arc steelframe and the fixed connection place of arc steelframe；Simultaneously
Connecting cleat is installed, the first mounting hole and the first matching hole is allowed to cooperate, the second mounting hole and the second matching hole cooperate, just
In being fixed in step 4；3, it in step 4, before fixing two arc steelframes and two connecting cleats, needs first to two
Spacing between arc-shaped steel frame end portion is adjusted, and fits closely the palisades in round steelframe and tunnel, promotes entire circular steel
Frame is able to ascend tunnel palisades and is transferred to the uniformity that pressure is distributed on round steelframe to the enabling capabilities of tunnel palisades；
Simultaneously when installing nut and bolt, fit closely the side of connecting cleat and the side of arc steelframe, it is ensured that connection folder
The clamping force of plate is uniformly transferred on arc steelframe, and firm fixation is carried out to arc steelframe.
Further, in step 3, when carrying out three side weld all arounds to arc steelframe junction, the welding manner used is plug welding, slot
Weldering or fillet weld.
Three of the above welding manner is suitable in the welding of arc steelframe junction, can carry out to steelframe junction steady
Solid welding.
Further, after the completion of step 4, the pneumatically placed concrete between tunnel palisades and arc steelframe outer wall, it is ensured that round steelframe
Surely；Simultaneously along axially mounted several reinforcing bars in round steelframe, reinforcing bar is bonded with round steelframe inner wall, and the circumferential spacing of reinforcing bar
For 1.0m.
The pneumatically placed concrete between tunnel palisades and arc steelframe outer wall is to allow round steelframe and tunnel palisades gapless
Cooperation, pressure at tunnel palisades can be adequately transferred on round steelframe；Then it is once again set up reinforcing bar, is in order to circle
Shaped steel frame is further supported, and is reinforced to round steelframe, while pressure being allowed to transmit to the axial direction of round steelframe,
Round steelframe is allowed to be more uniformly stressed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of main view direction after the open type TBM circle steel frame construction installation in the present invention；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A；
Fig. 4 is the enlarged drawing of connecting cleat in Fig. 3；
Fig. 5 is the enlarged drawing in Fig. 1 at B；
Fig. 6 is the cross-sectional view in Fig. 5 at B-B.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference in Figure of description includes: arc steelframe 1, connecting cleat 2, the first mounting hole 3, the second mounting hole
4, bolt 5, nut 6, reinforcing bar 7, three side weld all arounds 8.
Embodiment is basic as shown in attached drawing 1, attached drawing 2, attached drawing 3, attached drawing 4, attached drawing 5 and attached drawing 6: open type TBM circular steel
Frame structure passes through bolt 5 and nut including five capable assemblings at the arc steelframe 1 of round steelframe between five arc steelframes 1
It is welded again after 6 connections, the arc angle of arc steelframe 1 is equal, and then the central angle of arc steelframe 1 is 72 °.Such as figure
Shown in 1, a connection unit is equipped between two arc steelframes 1 of downside.
As shown in Figures 2 and 3, connection unit includes two connecting cleats 2 and two lock pieces, and lock piece includes bolt
5 and with bolt 5 cooperate nut 6, connecting cleat 2 be equipped with arc the first mounting hole 3 and the second mounting hole 4, left side
The right end of arc steelframe 1 is equipped with the first matching hole cooperated with the first mounting hole 3, and the left end of right side arc steelframe 1 is equipped with
With the second matching hole of the second mounting hole 4 cooperation, the first mounting hole 3, the second mounting hole 4, the first matching hole and the second matching hole
It can be passed through by the same bolt 5.
As shown in Figure 3 and Figure 4, the cross section of arc steelframe 1 is in the shape of an " I ", and the cross section of connecting cleat 2 is in " (" word
The vertical center line of shape, two connecting cleats 2 arcuately 1 cross section of steelframe is symmetricly set on the left and right sides of arc steelframe 1, connection
The side of clamping plate 2 is bonded with the side of arc steelframe 1；The top and bottom of 2 cross section of connecting cleat are obliquely installed simultaneously, and
Gradient is 1:6.
The installation steps of open type TBM circle steel frame construction are as follows in embodiment:
Step 1: digging tunnel, hang steel mesh at the palisades in tunnel；
Step 2: set anchor pole, anchor pole includes free end and anchored end, the free end of anchor pole to the upside palisades in tunnel into
Row support, the anchored end of anchor pole are inserted into the downside palisades in tunnel, realize the support to tunnel palisades；
Step 3: the first Pin circle steelframe being installed, five arc steelframes 1 are divided in the way of such as Fig. 1
Cloth is located at the downside in tunnel equipped with two arc steelframes 1 of the first matching hole and the second matching hole, by the junction of disconnected unit
It is attached using bolt 5 as shown in Figure 5 and Figure 6 and nut 6, three side weld all arounds 8 is carried out to each junction after connection, three sides are enclosed
The welding manner used when welding 8 is the combination of fillet weld and plug welding；Then two connecting cleats 2 are mounted in a manner of Fig. 3
The two sides of two arc steelframes 1, the first mounting hole 3 on 2 left end of connecting cleat is opposite with the first matching hole at this time, connecting cleat
The second mounting hole 4 on 2 right ends is opposite with the second matching hole；
Step 4: and then prepare two bolts 5 again, one of them is inserted into opposite the first matching hole and the first mounting hole 3
Interior, another is inserted into opposite the second matching hole and the second mounting hole 4；Then two arc-shaped steels at connecting cleat 2 are adjusted
Spacing between 1 end of frame, fits closely the palisades in round steelframe and tunnel；Between between two 1 ends of arc steelframe
It is using two nuts 6 that two bolts 5 are fixed after determination, locking is carried out to the spacing between two 1 ends of arc steelframe,
And the side of connecting cleat 2 and the side of arc steelframe 1 fit closely；Then between 1 outer wall of tunnel palisades and arc steelframe
Pneumatically placed concrete, it is ensured that round steelframe is steady；Simultaneously along axially mounted 20 reinforcing bars 7, reinforcing bar 7 and round steelframe in round steelframe
Inner wall fitting, and the circumferential spacing of reinforcing bar 7 is 1.0m；
Step 5: repeating step 3 and step 4, the 2nd to N Pin circle steelframe is installed, and between every Pin circle steelframe
Spacing is 0.75m.
Claims (10)
1. open type TBM circle steel frame construction, including several capable assemblings at the arc steelframe of round steelframe, several arc steelframes it
Between connect, which is characterized in that between the arc steelframe and arc steelframe be equipped with can adjust two adjacent arcs shaped steel frame abutting ends
The quantity of the connection unit of spacing between portion, connection unit is more than or equal to 1.
2. open type TBM circle steel frame construction according to claim 1, which is characterized in that the connection unit includes connecting
Fishplate, connecting cleat are slidably connected with an at least steelframe, and the place of being slidably connected is equipped with lock piece.
3. open type TBM circle steel frame construction according to claim 2, which is characterized in that the quantity of the connecting cleat
It is 2, and lock piece includes that bolt and the nut with bolt cooperation, connecting cleat are equipped with the first mounting hole and second of arc
Mounting hole, one of them described arc steelframe are equipped with first cooperated with the first mounting hole close to one end of the first mounting hole and match
Hole is closed, another arc steelframe is equipped with the second matching hole cooperated with the second mounting hole, institute close to one end of the second mounting hole
Stating the first mounting hole, the second mounting hole, the first matching hole and the second matching hole can be passed through by bolt.
4. open type TBM circle steel frame construction according to claim 3, which is characterized in that the arc steelframe it is transversal
Face is in the shape of an " I ", and the cross section of connecting cleat is in " (" font, arcuately the vertical center line of steelframe cross section is symmetrically arranged with two
A connecting cleat, and the side of connecting cleat is bonded with the side of arc steelframe.
5. open type TBM circle steel frame construction according to claim 4, which is characterized in that the connecting cleat cross section
Top and bottom be obliquely installed, and gradient is 1:6.
6. open type TBM circle steel frame construction according to claim 5, which is characterized in that the circular arc of the arc steelframe
Angle is equal.
7. open type TBM circle steel frame construction according to claim 6, which is characterized in that in circle steelframe described in every Pin
The quantity of arc steelframe is 5, and the central angle of arc steelframe is 72 °.
8. a kind of installation method for open type TBM circle steel frame construction as claimed in claim 6, which is characterized in that including
Following steps:
Step 1: digging tunnel, hang steel mesh at the palisades in tunnel；
Step 2: setting anchor pole, anchor pole is supported the palisades in tunnel；
Step 3: the first Pin circle steelframe being installed, several arc steelframes are connected, to not using connection unit after connection
Junction carry out three side weld all arounds；Then two connecting cleats are mounted on arc steelframe equipped with the first matching hole and are equipped with the
The arc steelframe two sides of two matching holes, and the first mounting hole on connecting cleat is opposite with the first matching hole, on connecting cleat
Second mounting hole is opposite with the second matching hole；
Step 4: preparing two bolts, one of them is inserted into opposite the first matching hole and the first mounting hole, another is inserted
Enter into opposite the second matching hole and the second mounting hole；Then between at adjusting connecting cleat between two arc-shaped steel frame end portions
Away from fitting closely the palisades in round steelframe and tunnel；After the spacing between two arc-shaped steel frame end portions determines, using two
Nut fixes two bolts, carries out locking, and the side of connecting cleat and arc to the spacing between two arc-shaped steel frame end portions
The side of shaped steel frame fits closely；
Step 5: repeating step 3 and step 4, the 2nd to N Pin circle steelframe is installed, and the spacing between every Pin circle steelframe
For 0.7-0.8m.
9. the installation method of open type TBM circle steel frame construction according to claim 8, which is characterized in that the step 3
In, when carrying out three side weld all arounds to arc steelframe junction, the welding manner used is plug welding, slot welding or fillet weld.
10. the installation method of open type TBM circle steel frame construction according to claim 9, which is characterized in that the step
After the completion of 4, the pneumatically placed concrete between tunnel palisades and arc steelframe outer wall, it is ensured that round steelframe is steady；Simultaneously in round steelframe
Along axially mounted several reinforcing bars, reinforcing bar is bonded with round steelframe inner wall, and the circumferential spacing of reinforcing bar is 1.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319001.5A CN110005449A (en) | 2019-04-19 | 2019-04-19 | Open type TBM circle steel frame construction and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319001.5A CN110005449A (en) | 2019-04-19 | 2019-04-19 | Open type TBM circle steel frame construction and its installation method |
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| Publication Number | Publication Date |
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| CN110005449A true CN110005449A (en) | 2019-07-12 |
Family
ID=67173199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910319001.5A Pending CN110005449A (en) | 2019-04-19 | 2019-04-19 | Open type TBM circle steel frame construction and its installation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN110005449A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424987A (en) * | 2019-07-30 | 2019-11-08 | 周建辉 | It is a kind of to be convenient for the device fixed to steel arch-shelf for constructing tunnel |
| CN110593908A (en) * | 2019-10-11 | 2019-12-20 | 江苏开放大学（江苏城市职业学院） | Die carrier structure for tunnel construction |
| CN111648796A (en) * | 2020-06-22 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Tunnel arch, arch structure and construction method |
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| CN106401613A (en) * | 2016-11-22 | 2017-02-15 | 中建五局土木工程有限公司 | Tunnel steel frame support construction method |
| CN206376886U (en) * | 2017-01-18 | 2017-08-04 | 中铁隧道股份有限公司 | Open type TBM steel arch-shelfs install horizontal brace clamping system |
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| CN208040389U (en) * | 2018-03-22 | 2018-11-02 | 辽宁三三工业有限公司 | A kind of open type TBM hard rock tunnels development machine section-steel support mounting device |
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| JPH07247798A (en) * | 1994-03-11 | 1995-09-26 | Taisei Corp | Method and device of driving sheet pile for prevention against collapse of ground at the rear side of tbm machine |
| CN103924990A (en) * | 2014-05-07 | 2014-07-16 | 刘允勇 | High-intensity retractable support |
| CN106401613A (en) * | 2016-11-22 | 2017-02-15 | 中建五局土木工程有限公司 | Tunnel steel frame support construction method |
| CN206376886U (en) * | 2017-01-18 | 2017-08-04 | 中铁隧道股份有限公司 | Open type TBM steel arch-shelfs install horizontal brace clamping system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424987A (en) * | 2019-07-30 | 2019-11-08 | 周建辉 | It is a kind of to be convenient for the device fixed to steel arch-shelf for constructing tunnel |
| CN110593908A (en) * | 2019-10-11 | 2019-12-20 | 江苏开放大学（江苏城市职业学院） | Die carrier structure for tunnel construction |
| CN110593908B (en) * | 2019-10-11 | 2020-12-22 | 江苏开放大学（江苏城市职业学院） | Die carrier structure for tunnel construction |
| CN111648796A (en) * | 2020-06-22 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Tunnel arch, arch structure and construction method |
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Application publication date: 20190712 |
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| RJ01 | Rejection of invention patent application after publication |