CN105927249B - A kind of construction method for pouring tunnel double-lining self-compacting concrete - Google Patents
A kind of construction method for pouring tunnel double-lining self-compacting concrete Download PDFInfo
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- CN105927249B CN105927249B CN201610346501.4A CN201610346501A CN105927249B CN 105927249 B CN105927249 B CN 105927249B CN 201610346501 A CN201610346501 A CN 201610346501A CN 105927249 B CN105927249 B CN 105927249B
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- 239000011376 self-consolidating concrete Substances 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 title claims abstract description 37
- 239000004567 concrete Substances 0.000 claims abstract description 57
- 238000009415 formwork Methods 0.000 claims abstract description 54
- 238000003860 storage Methods 0.000 claims abstract description 32
- 238000005266 casting Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 210000001624 hip Anatomy 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 5
- 230000009329 sexual behaviour Effects 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21D11/04—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
- E21D11/102—Removable shuttering; Bearing or supporting devices 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
- E21D11/04—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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (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 invention provides a kind of construction method for pouring tunnel double-lining self-compacting concrete, i.e., first unilateral poured from waist window is put in storage, then shifts to the method that top pours, and step includes：Ground pump pump line puts in storage setting steps, after the completion of chassis formwork, pump line is accessed in chassis, unilateral observation window is led to by flexible pipe and puts in storage；Template lower concrete pours step, and the unilateral concrete poured that puts in storage flows to opposite side from side, until side-lower observation window is closed；Pipe step is changed, flexible pipe is poured into window from side removes, and is connected with corresponding top pouring hole, until pouring completion.One aspect of the present invention solves self-compacting concrete in wholecircle formwork jumbo casting process, the problem of applicable Sexual behavior mode of the power of ground pump, on the other hand the dew muscle of the concrete of bottom and the phenomenon of delay be effectively prevent, the final construction quality for improving concrete structure shaping, improves efficiency of construction.
Description
Technical field
The invention belongs to underground engineering, the construction method of particularly a kind of cast-in-place two linings self-compacting concrete in tunnel.
Background technology
With the continuous development of China's underground engineering, self-compacting concrete is with its good mobility, stability, anti-isolation
Property and uniformity are in tunnel（Hole）It is widely used in liner structure, particularly in water-conveyance tunnel, one section of tunnel knot
Shuttering supporting built in structure use, self-compacting concrete one-time-concreting are molded, and reduce the horizontal joint of structure.Self-compacting concrete
First ground is transported to underground, then is transported to from underground and pours the scope of operation, is pumped to by ground pump and pours mouth and put in storage, selected different
Mode of putting in storage has a certain impact for the effect of concreting process and shaping structures.
In underground engineering, the technology of liner structure, concrete warehousing side are poured by underground haulage self-compacting concrete
Formula mainly has three kinds：One kind is first to be poured from trolley formwork bottom pouring hole, then shifts to top pouring hole and pour；Second is first
From trolley formwork both sides, waist observation window symmetrically pours, and then shifts to top pouring hole and pours；The third, top sets and poured
Hole, concrete directly put in storage from top, are changed without pouring mouth.Practice have shown that the self-compacting concrete poured for one-shot forming
Structure, three kinds of concrete warehousing modes appearance different degrees of in construction influence construction continuity and are molded tunnel quality
Problem, first method, bottom squeeze formula pour needed for pump pressure it is larger, easily occur because of pump pressure deficiency and " suppressing pump ", and then cause
Pour formation of concrete structure caused by interruption and cold seam occur, and pipe time length is changed in midway from bottom to up；Second enters with the third
Storehouse mode principle is identical, belongs to symmetrically pour, the concrete that both sides are put in storage is unfavorable for the row of air when template bottom is met
Go out, cause lower concrete to be locally filled with leakiness, the problem of local retention and dew muscle occur, while also cause bottom bubble
More phenomenon, in addition second method change the pipe time length, the third method easily caused under conditions of drop is big concrete from
Analysis.Whether the leakiness of cold seam, delay, dew muscle and concrete caused by concrete disintegration all have impact on the outward appearance of concrete
Quality and entity structure quality.
The content of the invention
It is an object of the invention to provide a kind of construction method for pouring tunnel double-lining self-compacting concrete, to solve existing
Concrete warehousing mode exist bottom squeeze formula pour needed for pump pressure it is larger, easily occur because pump pressure deficiency and the technology of " suppressing pump " is asked
Topic, also wants lower concrete to be locally filled with leakiness, local retention occurs and reveals the technical problem of muscle, also to solve concrete
Drop easily causes greatly the technical problem of concrete disintegration.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of construction method for pouring tunnel double-lining self-compacting concrete, construction procedure are as follows：
Step 1, observation window and top pouring hole are set on trolley formwork；
Step 2, open the door of whole observation windows；
Step 3, interior placement ground pump is served as a contrast in the front of chassis direct of travel, tunnel one；
Step 4, ground pump pump line put in storage：After the completion of chassis formwork, ground pump is accessed in chassis by hard pump line, and passes through
The middle observation window that soft pump line leads to side puts in storage；
Step 5, after pump line installation, open ground switch pump and pour self-compacting concrete to pumping on the outside of trolley formwork；
Step 6, template lower concrete pour：The one side concrete poured that puts in storage flows to opposite side from side, until
The door of lower observation window is closed；
Step 7, change pipe：Continue casting concrete, therefrom observation window removes by soft pump line, and is closed on observation window in this
The connection of top pouring hole, the door of observation window continues to pour in closing；
Step 8, when concrete liquid level is close to upper observation window, observation window in closing is until pour completion.
In the step 1, observation window under being set in the both sides obliquely downward of trolley formwork, in the both sides waist of trolley formwork
Observation window in setting, observation window and top pouring hole are set at the top of trolley formwork, and all observation windows are equipped with retractable
Door, the top pouring hole at least provided with two, it is at least one positioned at trolley formwork constructed tunnel two lining one end, extremely
One end of few one lining of tunnel two of not constructed positioned at trolley formwork.
In the step 4, picked out using hard pump line from ground pump discharge, extension is laid in the bottom that hard pump line serves as a contrast along tunnel one
To trolley formwork, horizontally enter into inside chassis needle beam and extend to after 90 ° of elbows conversion elevation of two hard pump lines
Hole site is poured at the top of close or corresponding trolley formwork, then reconnects 90 ° of elbow conversion directions upward, it is curved at 90 °
The soft pump line of sufficient length is connected on the connector of head, soft pump line is upwardly into above chassis needle beam and is somebody's turn to do to curving, introducing
The middle observation window of side, the then hard short tube of spreading on soft pump line, and hard short tube is temporarily fixed on middle observation window.
In the step 6, self-compacting concrete puts in storage from the middle observation window one side in step 4 and poured, concrete slurry
Therefrom observation window side flows to opposite side, and observation template both sides concrete liquid level discrepancy in elevation situation, when both sides, liquid level rises to down
During the lower edge of observation window, the door of the lower observation window of both sides is closed；
It is further comprising the steps of in the step 7：
Step a, continue casting concrete, until concrete liquid level is raised above the top edge about 10cm of lower observation window position
Put, stop when the template both sides liquid level discrepancy in elevation is no more than 30cm pouring；
Step b, hard short tube is dismantled from the middle observation window in step 4 and leaves soft pump line, by soft pump line with being observed in this
Window approaches or corresponding top pouring hole is connected firmly, and closes the door of observation window in both sides.
It is further comprising the steps of in the step 8：
Step c, self-compacting concrete continue to put in storage from top pouring hole to pour, and treat that concreting extremely will be with template top
When portion flushes, the anti-floating jack for stretching out upper observation window is removed, the door of observation window in closing, until pouring completion；
Step d, the top pouring hole is closed, removes soft pump line；
Step e, the length of hard pump line is adjusted, so as near the next close or corresponding top pouring hole that marches to
Middle observation window, the construction of next construction position in storehouse is carried out, until whole constructing tunnel finishes.
In the step 1, upper observation window and top pouring hole are arranged at intervals in units of the single-chip template of trolley formwork.
In the step 1, the absolute altitude of the lower observation window is equal, and in units of the single-chip template of trolley formwork,
In template both sides, space crossings are set, and the absolute altitude of the middle observation window is equal, and using the single-chip template of trolley formwork to be single
Position, set in template both sides space crossings, the lower observation window and middle observation window are set in the non-homonymy of same single-chip template.
Hard pump line, 90 ° of elbows and hard short tube in the step 4 are steel pipe, and the soft pump line is rubber tube, steel pipe
Between, connected using buckle merogenesis between rubber tube and between steel pipe and rubber tube.
The selection of top pouring hole in the step 4 need to take into account the flow distance of concrete and the length of construction position in storehouse,
The selection of the middle observation window need to close on the top pouring hole.
In the step 6, after self-compacting concrete is full of template bottom space, continues one side and pour, template both sides liquid level
Synchronous to rise, the opposite side rate of climb can be slightly larger than by pouring the liquid level rate of climb for side of putting in storage, and cause both sides liquid level to occur one
The liquid level discrepancy in elevation of the fixed discrepancy in elevation, therefrom observation window observation template both sides, the mode for handling the discrepancy in elevation have：
If the self-compacting concrete mobility is poor, vibrating spear can be used to drain when flowing to opposite side from side；
If the both sides liquid level discrepancy in elevation is larger, hard short tube need to only be taken apart from the middle observation window of the side, and move to opposite side
It is interim fixed again on middle observation window, then pour to both sides liquid level and flush.
Compared with prior art the invention has the characteristics that and beneficial effect：
The present invention, which solves the appearance different degrees of in construction of existing three kinds of concrete warehousing modes, influences construction company
The problem of continuing property and shaping tunnel quality, first pour from waist side and poured at the top of then directly changing, pour the concrete to put in storage
It is to lean on from side to flow to opposite side, smoothly can squeezes away the air of template bottom from opposite side, until trolley formwork bottom
Closely knit, good exhaust effect is filled, shaping tunnel floor Concrete Filled is closely knit, avoids the occurrence of dew muscle, delay and a large amount of bubbles
Problem.
The concrete that the present invention is put in storage is that the principle for leaning on Gravitative Loads and U-shaped linker is depressed into opposite side from template side,
Self-compacting concrete has high fluidity and good clearance through energy, without vibrating, one side pours put in storage after, can quickly to
Template opposite side and the flowing of template both ends, are pressed into by force without the pressure by ground pump, therefore pump pressure requires relatively low over the ground, can fit
Answer the phenomenon for pouring work, avoiding appearance pump pressure deficiency in casting process in the case of each range pressure of ground pump.The present invention solves
Self-compacting concrete is in the wholecircle formwork jumbo casting process, the problem of the applicable Sexual behavior mode of the power of ground pump, on the other hand
Also the dew muscle of the concrete of bottom and the phenomenon of delay are effectively prevent, finally improves the construction quality of concrete structure shaping,
Improve efficiency of construction.
Concrete drop of the present invention is small not to easily cause concrete disintegration, ensures the presentation quality and entity structure matter of concrete
Amount.
It is simple to operate that pipe is changed when pouring hole is changed in casting process of the present invention, without dismounting, is only needed directly by flexible pipe from side
Face moves to top pouring hole installation, shortens the engineering time and reduces manpower and materials, substantially increases effect.
Present invention tunnel suitable for the engineering such as subway or water conservancy（Hole）Lining cutting using self-compacting concrete pour once into
The construction operation of type structure, especially suitable for tunnel（Hole）Clear height is less than 10m, the freely falling body maximum height of self-compacting concrete
For 5m tunnel（Hole）.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the sectional structure chart that observation window is set in embodiment.
Fig. 2 is the three-dimensional structure diagram that top pouring hole and observation window are set in embodiment.
Fig. 3 is that formwork jumbo inner concrete pump line puts in storage the side block diagram of set-up mode.
Fig. 4 is Fig. 3 cross section structure diagram.
Fig. 5 is that unilateral put in storage pours the structural representation of lower concrete.
Fig. 6 be it is unilateral put in storage pour to template under the structural representation closed of observation window.
Fig. 7, which is concrete liquid level, shifts to the structural representation of top pouring hole close to pump line during the door of lower observation window.
Fig. 8 is the structural representation from casting concrete at the top of trolley formwork to waist.
Fig. 9 is structural representation of the concreting to die head.
Reference：Observation window under 1- trolley formworks, 2-, 3- chassis needle beam, 4- top pourings hole, the hard pump lines of 5-,
The soft pump lines of 6-, 7-90 ° of elbow, 8- tunnels one serve as a contrast, 9- has constructed, and tunnel two serves as a contrast, 10- self-compacting concretes, 11- are firmly short
Observation window, the upper observation windows of 13- in pipe, 12-.
Embodiment
Embodiment serves as a contrast self-compact concrete in construction referring to shown in Fig. 1-9 to pour tunnel two in whole-circle needle beam formwork jumbo
Exemplified by provide a kind of construction method for pouring tunnel double-lining self-compacting concrete.The lining of tunnel two is that the lining construction of tunnel one is completed
Afterwards, that is constructed on the lining basal plane of tunnel one has certain thickness reinforced concrete lining layer structure.Need to be during the lining construction of tunnel two
Tunnel one carries out formwork on the basis of serving as a contrast, and is the formwork side that current circular tunnel generally uses using whole-circle needle beam formwork jumbo formwork
Formula, at the same it is difficult in view of circular branch modular space concrete vibrating, poured using the self-compacting concrete of without vibration.
Specific construction step is as follows：
Step 1, observation window and top pouring hole are set on trolley formwork 1：Set in the both sides obliquely downward of trolley formwork 1
Lower observation window 2 is put, the observation window 12 in the both sides waist of trolley formwork 1 is set, observation window is set at the top of trolley formwork 1
13 and top pouring hole 4.
It is shown in Figure 1, in terms of cross section, observation is respectively provided with both sides obliquely downward, waist and the top of trolley formwork 1
Window, size are 450mm × 500mm, configure the door that can be opened and closed, and observation window is mainly used in observing concrete in platform
Car template and tunnel one serve as a contrast between mobility status and put in storage for concreting.
It is shown in Figure 2, with 112m（Lap of splice 20cm）Trolley formwork 1 exemplified by, by the wide templates of 1 piece of 1.7m and 7 pieces
The wide template compositions of 1.5m, template is respectively 1-8 blocks from left to right.Wherein, the wide template one end of 1.7m serves as a contrast with lined tunnel two
Structure overlaps 20cm, and therefore, effective adjoining rock is 12m.
The absolute altitude of the lower observation window 2 is equal, and in units of the single-chip template of trolley formwork, between template both sides
Every arranged in a crossed manner, the absolute altitude of the middle observation window 12 is equal, and in units of the single-chip template of trolley formwork, in template two
Side space crossings are set, and the lower observation window 2 and middle observation window 12 are set in the non-homonymy of same single-chip template.
In the present embodiment, 8 lower observation windows 2 and 8 middle observation windows are respectively set in trolley formwork both sides obliquely downward and waist
12, top sets 2 observation windows 2.Calculated from the wide template one end of 1.7m, the 1st, 3,5,7 piece of template left side lumbar and right side it is oblique under
Side is respectively provided with 1 observation window, and the 2nd, 4,6,8 piece of template left lumbar and left side obliquely downward are respectively provided with 1 observation window.
Upper observation window 13 and top pouring hole 4 are arranged at intervals in units of the single-chip template of trolley formwork.Pour at the top
Hole 4 is built at least provided with two, one end of at least one lining of tunnel two of having been constructed positioned at trolley formwork is at least one to be located at chassis mould
Plate do not construct tunnel two lining one end, for the longer template of lining cutting close to centre position set one, top is used in the method
What is poured is generally lining cutting end and centre position pouring hole.In the present embodiment, the 3rd, 6 piece of die head respectively sets 1 upper sight
Examine the 13, the 2nd, 4,7 piece of die head of window and 1 top pouring hole 4, bore dia 100mm are respectively set.
Step 2, open the door of whole observation windows；
Step 3, the placement ground pump in the front of chassis direct of travel, the lining of tunnel one 8；
Step 4, ground pump pump line put in storage：Referring to shown in Fig. 3-4, after the completion of chassis formwork, ground pump is accessed by hard pump line
In chassis, and the middle observation window for leading to by soft pump line side puts in storage.Picked out using hard pump line 5 from ground pump discharge, the hard edge of pump line 5
The bottom laying of the lining of tunnel one 8 is extended near trolley formwork 1, horizontal after 90 ° of elbows 7 conversion elevation of two hard pump lines
Inside into chassis needle beam 3 and extend close to or corresponding trolley formwork constructed the lining of tunnel two one end top pouring hole 4
Position, then reconnect 90 ° of conversion directions of elbow 7 upward, the soft of sufficient length is connected on the connector of 90 ° of elbows 7
Pump line 6, soft pump line be upwardly into the top of chassis needle beam 3 and to curving, be introduced into the middle observation window 12 of the side, then in soft pump line
The hard short tube 11 of spreading on 6, and hard short tube 11 is temporarily fixed on middle observation window 12.
In this example, hard 5,90 ° of elbows 7 of pump line and hard short tube 11 are steel pipe, and the soft pump line is rubber tube, steel pipe it
Between, connected using buckle merogenesis between rubber tube and between steel pipe and rubber tube.The selection of top pouring hole 4 need to take into account mixed
The flow distance of soil and the length of construction position in storehouse are coagulated, the selection of the middle observation window 12 need to close on the top pouring hole 4.
Step 5, after pump line installation, open ground switch pump and pour self-compacting concrete to pumping on the outside of trolley formwork；
Step 6, template lower concrete pour：Self-compacting concrete puts in storage from the one side of middle observation window 12 in step 4
Pouring, therefrom the side of observation window 12 flows to opposite side to concrete slurry, observes template both sides concrete liquid level discrepancy in elevation situation, when
When both sides liquid level rises to the lower edge of lower observation window 2, the door of the lower observation window 2 of both sides is closed.
After self-compacting concrete is full of template bottom space, continues one side and pour, template both sides liquid level synchronously rises, and pours
The liquid level rate of climb of side of putting in storage can be slightly larger than the opposite side rate of climb, cause both sides liquid level certain discrepancy in elevation occur, therefrom
Observation window 12 observes the liquid level discrepancy in elevation of template both sides, and the mode for handling the discrepancy in elevation has：
If the self-compacting concrete mobility is poor, vibrating spear can be used to drain when flowing to opposite side from side；
If the both sides liquid level discrepancy in elevation is larger, hard short tube 11 need to only be taken apart from the middle observation window 12 of the side, and move to another
It is interim fixed again on observation window 12 in side, then pour to both sides liquid level and flush.
Step 7, change pipe：Continue casting concrete, until concrete liquid level is raised above the top edge of lower observation window 2 about
Stop pouring when 10cm position, the template both sides liquid level discrepancy in elevation are no more than 30cm；By hard short tube 11 from middle in step 4
Dismounting leaves soft pump line 6 on window 12, and soft pump line is approached with observation window in this 12 or corresponding top pouring hole 4 is connected firmly,
And close the door of observation window 12 in both sides.
Step 8, self-compacting concrete continue to put in storage from top pouring hole 4 to pour, and treat that concreting extremely will be with mould
When being flushed at the top of plate, the anti-floating jack for stretching out upper observation window 13 is removed, the door of observation window 13 in closing, until having poured
Into；
The top pouring hole 4 is closed, removes soft pump line 6；
The length of hard pump line 5 is adjusted, so as to the middle sight near the next close or corresponding top pouring hole that marches to
Window 12 is examined, the construction of next construction position in storehouse is carried out, until whole constructing tunnel finishes.
It should be understood that the embodiment described in description above is merely to illustrate the present invention rather than limitation originally
The scope of invention.After the present invention has been read, modification of the those skilled in the art to the various equivalents of the present invention falls
In the application appended claims limited range.
Claims (6)
1. a kind of construction method for pouring tunnel double-lining self-compacting concrete, it is characterised in that construction procedure is as follows：
Step 1, in trolley formwork（1）Upper setting observation window and top pouring hole；
In trolley formwork（1）Both sides obliquely downward lower observation window is set（2）, in trolley formwork（1）Both sides waists set in see
Examine window（12）, in trolley formwork（1）Top upper observation window is set（13）With top pouring hole（4）, all observation windows are equipped with
Retractable door, the top pouring hole（4）It is at least one to be served as a contrast positioned at trolley formwork tunnel two of having constructed at least provided with two
One end, it is at least one positioned at trolley formwork do not construct tunnel two lining one end；
Step 2, open the door of whole observation windows；
Step 3, served as a contrast in the front of chassis direct of travel, tunnel one（8）Interior placement ground pump；
Step 4, ground pump pump line put in storage：After the completion of chassis formwork, ground pump is accessed in chassis by hard pump line, and pass through soft pump
The middle observation window that pipe leads to side puts in storage；
Step 5, after pump line installation, open ground switch pump and pour self-compacting concrete to pumping on the outside of trolley formwork；
Step 6, template lower concrete pour：The one side concrete poured that puts in storage flows to opposite side from side, until lower sight
Examine window（2）Door close；
Self-compacting concrete is from the middle observation window in step 4（12）One side, which is put in storage, to be poured, concrete slurry therefrom observation window（12）
Side flows to opposite side, and observation template both sides concrete liquid level discrepancy in elevation situation, when both sides, liquid level rises to lower observation window（2）'s
During lower edge, the lower observation window of both sides is closed（2）Door；
Step 7, change pipe：Continue casting concrete, therefrom observation window removes by soft pump line, and the top closed on observation window in this
Portion's pouring hole（4）Connection, observation window in closing（12）Door continue to pour；
In the step 7, comprise the following steps：
Step a, continue casting concrete, until concrete liquid level is raised above lower observation window（2）Top edge about 10cm position
Put, stop when the template both sides liquid level discrepancy in elevation is no more than 30cm pouring；
Step b, by hard short tube（11）From the middle observation window in step 4（12）Upper dismounting leaves soft pump line（6）, by soft pump line with
Observation window in this（12）Close or corresponding top pouring hole（4）It is connected firmly, and closes observation window in both sides（12）Door；
Step 8, when concrete liquid level is close to upper observation window（13）When, observation window in closing（13）Until pouring completion；
In the step 8, comprise the following steps：
Step c, self-compacting concrete continue from top pouring hole（4）Put in storage and pour, treat that concreting extremely will be with template top
When portion flushes, upper observation window will be stretched out（13）Anti-floating jack remove, observation window in closing（13）Door, until poured
Into；
Step d, close the top pouring hole（4）, remove soft pump line（6）；
Step e, adjust hard pump line（5）Length, so as near the next close or corresponding top pouring hole that marches to
Middle observation window（12）, the construction of next construction position in storehouse is carried out, until whole constructing tunnel finishes.
2. the construction method according to claim 1 for pouring tunnel double-lining self-compacting concrete, it is characterised in that：The step
In rapid four, hard pump line is used（5）From ground, pump discharge picks out, hard pump line（5）Served as a contrast along tunnel one（8）Bottom laying extend to chassis
Template（1）Near, by 90 ° of elbows of two hard pump lines（7）Chassis needle beam is horizontally entered into after conversion elevation（3）Simultaneously prolong inside
Extend the top pouring hole of close or corresponding trolley formwork（4）Position, then reconnect 90 ° of elbows（7）Conversion direction court
On, in 90 ° of elbows（7）Connector on connect sufficient length soft pump line（6）, soft pump line is upwardly into chassis needle beam（3）Top
And to curving, be introduced into the middle observation window of the side（12）, then in soft pump line（6）The upper hard short tube of spreading（11）, and will be hard short
Pipe（11）It is temporarily fixed on middle observation window（12）On.
3. the construction method according to claim 1 for pouring tunnel double-lining self-compacting concrete, it is characterised in that：The step
In rapid one, upper observation window（13）With top pouring hole（4）It is arranged at intervals in units of the single-chip template of trolley formwork；The lower sight
Examine window（2）Absolute altitude it is equal, and in units of the single-chip template of trolley formwork, template both sides space crossings set, institute
State middle observation window（12）Absolute altitude it is equal, and in units of the single-chip template of trolley formwork, in template both sides space crossings
Set, the lower observation window（2）With middle observation window（12）Set in the non-homonymy of same single-chip template.
4. the construction method according to claim 2 for pouring tunnel double-lining self-compacting concrete, it is characterised in that：The step
Hard pump line in rapid four（5）, 90 ° of elbows（7）With hard short tube（11）It is steel pipe, the soft pump line is rubber tube, between steel pipe,
Connected between rubber tube and between steel pipe and rubber tube using buckle merogenesis.
5. the construction method for pouring tunnel double-lining self-compacting concrete according to claim 2 or 4, it is characterised in that：Institute
State the top pouring hole in step 4（4）Selection need to take into account concrete flow distance and construction position in storehouse length, in described
Observation window（12）Selection need to close on the top pouring hole（4）.
6. the construction method according to claim 2 for pouring tunnel double-lining self-compacting concrete, it is characterised in that：The step
In rapid six, after self-compacting concrete is full of template bottom space, continues one side and pour, template both sides liquid level synchronously rises, and pours
The liquid level rate of climb of side of putting in storage can be slightly larger than the opposite side rate of climb, cause both sides liquid level certain discrepancy in elevation occur, therefrom
Observation window（12）The liquid level discrepancy in elevation of template both sides is observed, the mode for handling the discrepancy in elevation has：
If the self-compacting concrete mobility is poor, vibrating spear can be used to drain when flowing to opposite side from side；
, only need to be by hard short tube if the both sides liquid level discrepancy in elevation is larger（11）Middle observation window from the side（12）On take apart, and move to another
Observation window in side（12）On it is interim fixed again, then pour to both sides liquid level and flush.
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| CN106499408B (en) * | 2016-11-02 | 2019-04-30 | 北京翔鲲水务建设有限公司 | Wholecircle full section of tunnel one-pass molding self-compacting concrete pouring construction method |
| CN106968698B (en) * | 2017-04-13 | 2019-07-30 | 中煤能源研究院有限责任公司 | Gob side entry retaining pours the template hydraulic support and its application method of pier stud by lane |
| CN107060830A (en) * | 2017-06-09 | 2017-08-18 | 中铁十七局集团第五工程有限公司 | Single-track tunnel secondary lining concrete pours device and its construction method by window |
| CN109236324A (en) * | 2018-08-01 | 2019-01-18 | 中铁十九局集团第二工程有限公司 | A kind of lining trolley injected hole improved method |
| CN110735651B (en) * | 2019-09-11 | 2022-01-28 | 北京清河水利建设集团有限公司 | Self-compacting concrete pouring construction method for through-hole pipe |
| CN110939463B (en) * | 2019-11-21 | 2023-07-18 | 中铁隧道局集团有限公司 | Movable full-section integral steel mould lining trolley and application thereof in pumping pouring of secondary lining concrete |
| CN111236975A (en) * | 2020-01-19 | 2020-06-05 | 中铁三局集团有限公司 | Large-section tunnel secondary lining separated-bin pouring construction equipment and construction method |
| CN117069424B (en) * | 2023-07-03 | 2024-06-11 | 广东粤海珠三角供水有限公司 | Prestressed lining concrete and preparation method and construction method thereof |
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| JPH04176998A (en) * | 1990-11-09 | 1992-06-24 | Fudo Constr Co Ltd | Quality control method for tunnel lining using cast-in-place concrete |
| CN2921281Y (en) * | 2006-05-17 | 2007-07-11 | 孟平 | Byoyancy self-balancing tunnel two-lining concrete shuttering trolley |
| CN101614124B (en) * | 2008-06-27 | 2011-12-07 | 中铁隧道集团有限公司 | Method for synchronic construction of tunnelling of open-type hard rock tunnel boring machine and secondary lining |
| CN103867214A (en) * | 2013-11-21 | 2014-06-18 | 上海市基础工程集团有限公司 | Construction method for carrying out secondary lining and casting in shielded tunnel |
| CN104763443A (en) * | 2015-01-22 | 2015-07-08 | 张进军 | Full-circle tunnel shoring system |
| CN104895587B (en) * | 2015-05-28 | 2017-01-11 | 广西建工集团第五建筑工程有限责任公司 | Construction method for pressure pouring of concrete for tunnel secondary lining |
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