CN110454197A - Tunnel inverted arch subregion operation break-down streamlined construction method - Google Patents
Tunnel inverted arch subregion operation break-down streamlined construction method Download PDFInfo
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- CN110454197A CN110454197A CN201910786343.8A CN201910786343A CN110454197A CN 110454197 A CN110454197 A CN 110454197A CN 201910786343 A CN201910786343 A CN 201910786343A CN 110454197 A CN110454197 A CN 110454197A
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- 238000010276 construction Methods 0.000 title claims abstract description 50
- 230000015556 catabolic process Effects 0.000 title claims abstract description 10
- 238000009412 basement excavation Methods 0.000 claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 210000001364 upper extremity Anatomy 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 5
- 241000167854 Bourreria succulenta Species 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 235000019693 cherries Nutrition 0.000 claims description 3
- 230000001351 cycling effect Effects 0.000 claims description 3
- 239000011378 shotcrete Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003319 supportive effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000003252 repetitive effect Effects 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000007493 shaping process 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
-
- 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- 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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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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)
- Environmental & Geological Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel inverted arch subregion operation break-down streamlined construction method, step 1, Telescopic moving trestle enters tunnel；Step 2, inverted arch are excavated the operation of the area Chu Zhi and are carried out using stages cycle mode；Step 3 carries out the reinforcing bar binding in inverted arch lining cutting area after the completion of while inverted arch excavates the construction of the area the Chu Zhi or inverted arch excavation area Chu Zhi constructs；Inverted arch template is transported to inverted arch lining cutting area by inverted arch fill area extension, pours inverted arch lining cutting area concrete；Meanwhile centre of pull ditch template is to inverted arch fill area, then pours inverted arch fill area concrete；Step 4 after inverted arch fill area concrete strength is up to standard, starts mobile collapsible movable trestle, recycles into next construction.Using the construction method, each construction circulation can save 27 hours, reduce the inverted arch construction time, promote secondary lining Quick fastening with ensuring safety step pitch management controllably, can push face rapid construction, guaranteeing that lining cutting is safe and stable.
Description
Technical field
The invention belongs to Construction Technology fields, and in particular to a kind of tunnel applied to fields such as railway, highway, water conservancies
Road inverted arch each process streamlined construction method.
Background technique
Currently, railway tunnel work construction is limited by safe step pitch management red line, and the duration of a project is tediously long, and personnel depaly is super
Height, safety, quality, economic aspect also do not adapt to the demand of engineering construction at this stage.
The construction of railway tunnel inverted arch is used as critical circuits key procedure, traditional engineering method are as follows: excavation and support, inverted arch lining
Build, the processes such as inverted arch filling in order, substep, it is intermittent apply, the inverted arch construction and excavation of general length 12m and supporting are time-consuming
30.2h, inverted arch lining cutting time-consuming 57.5h, inverted arch fill time-consuming 58.5h.First is that time-consuming for working procedure, inverted arch cannot be closed in time
Cyclization, the safe step pitch of lining cutting cannot reduce in time, and it is out of control that structural stability difference easily leads to safety；Second is that an only workspace,
Each process can only have been interrupted in the process the subsequent construction channel between face, caused face basic by step, single operation
Pause, construction organization progress is limited year after year cannot form benign cycle；Third is that the construction machinery of configuration, personnel are difficult to obtain sufficiently
It maximally utilizes, construction cost control difficulty is big.
Summary of the invention
The present invention is intended to provide a kind of safe and reliable, strong operability tunnel inverted arch each process subregion operation break-down streamlined
Construction reduces inverted arch construction circulation time-consuming, secondary lining is promoted to closely follow, and is meeting the management red line requirement of railway security step pitch
Under conditions of, face rapid construction is pushed, closed loop ensures lining cutting safety and stability as early as possible, and synchronous construction improves inverted arch construction work
Effect, rapid shaping promote tunnel piercing progress.
For this purpose, the technical scheme adopted by the invention is as follows: a kind of tunnel inverted arch subregion operation break-down streamlined construction method, packet
Include following steps:
Step 1, Telescopic moving trestle enter tunnel, and tunnel inverted arch is divided into inverted arch by construction and excavates the area Chu Zhi, inverted arch
The three independent operation areas in lining cutting area and inverted arch fill area；
The Telescopic moving trestle includes main bridge, and host bridge is equipped with the preceding access bridge of main bridge, rear access bridge, rear traveling machine
Structure, front leg strut, middle supporting leg, rear support leg and Zhu Qiao vertical shift mechanism, before time interval is equipped in host bridge vertical shift trolley and after
Vertical shift trolley, preceding vertical shift trolley and rear vertical shift trolley can be moved as Gua Yun mechanism before and after the respective main bridge of power drive lower edge
Dynamic, the front of host bridge is also equipped with front launching nose, the front launching nose equipped with secondary vertical shift mechanism, auxiliary leg and preceding access bridge,
The front launching nose is slidably mounted on main bridge, and the front of front launching nose reaches outside main bridge, and can under the driving of secondary vertical shift mechanism phase
Main bridge is moved forward, the preceding access bridge is hingedly mounted on the front end of front launching nose and can be flipped up and packs up, host bridge leading
It corrects and is ridden on front launching nose under bridge；
Step 2, inverted arch are excavated the operation of the area Chu Zhi and are carried out using stages cycle mode；
Telescopic moving trestle packs up preceding access bridge first, and digging machine, which is located in front of Telescopic moving trestle, to be excavated, and slags tap
The front end that vehicle is parked in front launching nose carries out dress slag operation, after completing a bit of inverted arch excavation, packs up auxiliary leg, passes through secondary vertical shift machine
Structure pushes front launching nose to proceed to down a bit of inverted arch to be excavated, and puts down auxiliary leg, is laid in upper a bit of excavated in inverted arch
Steel arch-shelf, reinforced mesh connect reinforcing bar, then carry out gunite concrete, a bit of excavation and support for having excavated inverted arch in completion；
Operation is continued cycling through in the manner described above, until putting down preceding access bridge after completing the inverted arch excavation area Chu Zhi operation, stretching
Formula movable trestle restores to pass through；
Step 3 carries out inverted arch after the completion of while inverted arch excavates the construction of the area the Chu Zhi or inverted arch excavation area Chu Zhi constructs
The reinforcing bar in lining cutting area is bound；After the completion of reinforcing bar binding, the preceding vertical shift trolley and rear vertical shift trolley of Telescopic moving trestle jointly will
Inverted arch template is transported to inverted arch lining cutting area after the adjustment of inverted arch template is had good positioning by inverted arch fill area extension and pours inverted arch lining cutting area coagulation
Soil；Meanwhile rear vertical shift trolley returns to Telescopic moving trestle tail portion, centre of pull ditch template to inverted arch fill area, in completion
After edema with the heart involved ditch Template Location, then pour inverted arch fill area concrete；
Step 4 after inverted arch fill area concrete strength is up to standard, starts mobile collapsible movable trestle, packs up rear access bridge,
Running mechanism supports fill surface by oil cylinder afterwards, and rear support leg leaves fill surface, packs up front leg strut, and middle supporting leg plays a supportive role, and leads to
It is a bit of to cross the main bridge forward movement of main bridge vertical shift mechanism urges, puts down front leg strut, packs up middle supporting leg, mechanism is led by Zhu Qiao vertical shift
It is a bit of to draw middle supporting leg forward movement, puts down middle supporting leg, repetitive operation moves on, until mobile collapsible movable trestle is tired
Count the length that stroke is equal to inverted arch fill area；Running mechanism is fallen after rise afterwards, is fallen in rear support leg in fill surface, is put down rear access bridge, stretch
Contracting formula movable trestle restores to pass through, and recycles into next construction.
Described 54 meters of Telescopic moving trestle overall length as a preferred embodiment of the above solution, main bridge is 30 meters long, leading beam length 19
Rice.
Further preferably, the inverted arch excavates 12 meters of the area Chu Zhi, inverted arch lining cutting area and each length of inverted arch fill area；In step
In two, a bit of inverted arch for completing 3 meters of length every time excavates and supporting, and the inverted arch for completing 12 meters of length in four times excavates the area Chu Zhi
Operation；In step 4, Telescopic moving trestle moves forward 6 meters every time, and make two bites at a cherry one 12 meters of circulation of constructing
It is mobile.
Beneficial effects of the present invention: inverted arch construction is divided into inverted arch and excavates the area Chu Zhi, inverted arch lining cutting area and inverted arch filling
The independent operation area in three, area, and the telescopic inverted arch movable trestle of large span is combined, form the construction of subregion operation break-down streamlined
Operation, while inverted arch excavates the construction of the area Chu Zhi, the construction that inverted arch lining cutting area can be carried out simultaneously, pour inverted arch lining cutting area.Pass through
Construction site verifying, using the construction method, each construction circulation can save 27 hours, reduce the inverted arch construction time, promote
Make secondary lining Quick fastening with ensuring safety step pitch management controllably, face rapid construction can be pushed, guaranteeing lining cutting peace
Entirely, stablize.
Detailed description of the invention
Fig. 1 is Telescopic moving trestle and subregion schematic diagram.
Fig. 2 is the construction schematic diagram that inverted arch excavates the area Chu Zhi.
Fig. 3 is the construction schematic diagram in inverted arch lining cutting area.
Fig. 4 is the construction schematic diagram of inverted arch fill area.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described:
A kind of tunnel inverted arch subregion operation break-down streamlined construction method, comprising the following steps:
Step 1, as shown in Figure 1, Telescopic moving trestle enters tunnel, tunnel inverted arch is divided into inverted arch by construction and excavates
The area Chu Zhi A, inverted arch lining cutting area B and the tri- independent operation areas inverted arch fill area C.
Telescopic moving trestle is mainly by main bridge 1, preceding vertical shift trolley 2, rear vertical shift trolley 3, the preceding access bridge 4 of main bridge, rear access bridge
5, rear running mechanism 6, front leg strut 7, middle supporting leg 8, rear support leg 9, Zhu Qiao vertical shift mechanism 10, front launching nose 11, secondary vertical shift mechanism 12, auxiliary
Supporting leg 13, preceding access bridge 14 is helped to form.
Traditional trestle includes main bridge, preceding vertical shift trolley, rear vertical shift trolley, preceding access bridge, rear access bridge, rear walking mechanism, preceding
Supporting leg, rear support leg, Zhu Qiao vertical shift mechanism composition, cannot achieve flexible.This Telescopic moving trestle, on the basis of traditional trestle
Increase middle supporting leg, front launching nose, secondary vertical shift mechanism, auxiliary leg, preceding access bridge etc..
Time interval is equipped with preceding vertical shift trolley 2 and rear vertical shift trolley 3, preceding vertical shift trolley 2 and rear vertical shift trolley on main bridge 1
3 can be moved forward and backward as Gua Yun mechanism in the main bridge 1 of respective power drive lower edge, face upward for hanging fortune from the lower section of main bridge or drawing
Encircle template, Central drain template etc..Preceding vertical shift trolley 2 and rear vertical shift trolley 3 belong to the prior art, and details are not described herein.
The front of main bridge 1 is also equipped with front launching nose 11, and front launching nose 11 is equipped with secondary vertical shift mechanism 12, auxiliary leg 13 and preceding
Access bridge 14.Front launching nose 11 is slidably mounted on main bridge 1, and the rear portion of front launching nose 11 is slidably mounted in main bridge 1, before front launching nose 11
Portion reaches outside main bridge 1, and relatively main bridge 1 can move forward under the driving of secondary vertical shift mechanism 12.Secondary vertical shift mechanism 12, which uses, stretches
Contracting cylinder, one end of telescoping cylinder are hinged on the bottom of front launching nose 11, and the other end of telescoping cylinder is hinged on the front end face of front leg strut 7.
Preceding access bridge 14 be hingedly mounted on the front end of front launching nose 11 and capable of being flipped up pack up (Fig. 1 show working condition and
It is flipped up and packs up two states), the overturning of preceding access bridge 14 is realized by telescoping cylinder.It corrects and rides under access bridge 4 before main bridge
On front launching nose 11.
Step 2, inverted arch are excavated the A operation of the area Chu Zhi and are carried out using stages cycle mode.
Telescopic moving trestle packs up preceding access bridge 14 first, and digging machine, which is located in front of Telescopic moving trestle, to be excavated, out
The slag car is parked on front launching nose 11, and is located at 11 front end of front launching nose and is carried out dress slag operation.After completing a bit of inverted arch excavation, such as
3 meters, but 3 meters are not limited to, auxiliary leg 13 is packed up, auxiliary leg 13 is stretched by telescoping cylinder effect.Pass through secondary vertical shift machine
Structure 12 pushes front launching nose 11 to proceed to down a bit of inverted arch to be excavated, and puts down auxiliary leg 13, a bit of has excavated inverted arch upper
Interior laying steel arch-shelf, reinforced mesh connect reinforcing bar, then carry out gunite concrete, a bit of excavation for having excavated inverted arch in completion
With supporting.Fig. 2 show the construction schematic diagram that inverted arch excavates the area Chu Zhi, but preceding access bridge is not yet packed up.
Operation is continued cycling through in the manner described above, until after completing the inverted arch excavation area Chu Zhi A operation, access bridge 14 before putting down,
Telescopic moving trestle restores to pass through.
Step 3 is faced upward after the completion of inverted arch excavates while the area Chu Zhi A constructs or the inverted arch excavation area Chu Zhi A constructs
Arch lining builds the reinforcing bar binding of area B.After the completion of reinforcing bar binding, the preceding vertical shift trolley 2 and rear vertical shift trolley 3 of Telescopic moving trestle are total
Inverted arch lining cutting is poured with inverted arch template is transported to inverted arch lining cutting area B after the adjustment of inverted arch template is had good positioning by inverted arch fill area C extension
Area's B concrete, as shown in Figure 3.Meanwhile rear vertical shift trolley 3 returns to Telescopic moving trestle tail portion, centre of pull ditch template is extremely
Inverted arch fill area C after completing Central drain Template Location, then pours inverted arch fill area C concrete, as shown in Figure 4.
Step 4 after inverted arch fill area C concrete strength is up to standard, starts mobile collapsible movable trestle.After packing up first
Access bridge 5, rear running mechanism 6 support fill surface by oil cylinder, and rear support leg 9 leaves fill surface, packs up front leg strut 7, and middle supporting leg 8 plays branch
Support effect, pushes main bridge 1 to move forward a bit of by Zhu Qiao vertical shift mechanism 10.Front leg strut 7 is put down, middle supporting leg 8 is packed up, passes through
Supporting leg 8 moves forward a bit of in the traction of Zhu Qiao vertical shift mechanism 10, puts down middle supporting leg 8, and repetitive operation moves on, until mobile
The accumulative stroke of Telescopic moving trestle is equal to the length of inverted arch fill area C.Running mechanism 6 is fallen after rise afterwards, is fallen in rear support leg 9 and is filled out
It fills on face, puts down rear access bridge 5, Telescopic moving trestle restores to pass through, recycle into next construction.
54 meters of Telescopic moving trestle overall length refers to that the relatively main bridge 1 of front launching nose 11 extends forwardly to extreme position, and main bridge
Preceding access bridge 4, rear access bridge 5, preceding access bridge 14 are in the length of working condition.Main bridge 1 is 30 meters long, and front launching nose 11 is 19 meters long.It is flexible
Formula movable trestle, main bridge 1, front launching nose 11 dimensions be not limited to above-mentioned size.
Inverted arch excavates the area Chu Zhi A, 12 meters of each length of inverted arch lining cutting area B and inverted arch fill area C.In step 2,3 are completed every time
The a bit of inverted arch of meter Chang Du excavates and supporting, and the inverted arch for completing 12 meters of length in four times excavates the operation of the area Chu Zhi A.In step
In four, Telescopic moving trestle moves forward 6 meters every time, and make two bites at a cherry one 12 meters of movement of circulation of constructing.
Claims (3)
1. a kind of tunnel inverted arch subregion operation break-down streamlined construction method, which comprises the following steps:
Step 1, Telescopic moving trestle enter tunnel, and tunnel inverted arch is divided into inverted arch by construction and excavates the area Chu Zhi (A), inverted arch
The three independent operation areas in lining cutting area (B) and inverted arch fill area (C)；
The Telescopic moving trestle includes main bridge (1), host bridge (1) equipped with the preceding access bridge of main bridge (4), rear access bridge (5), after
Running mechanism (6), front leg strut (7), middle supporting leg (8), rear support leg (9) He Zhuqiao vertical shift mechanism (10), front and back in host bridge (1)
Interval is equipped with preceding vertical shift trolley (2) and rear vertical shift trolley (3), and preceding vertical shift trolley (2) and rear vertical shift trolley (3) are as extension fortune machine
Structure can be moved forward and backward in the respective main bridge of power drive lower edge (1), and the front of host bridge (1) is also equipped with front launching nose (11),
For the front launching nose (11) equipped with secondary vertical shift mechanism (12), auxiliary leg (13) and preceding access bridge (14), the front launching nose (11) is sliding
Dynamic to be mounted on main bridge (1), the front of front launching nose (11) reaches main bridge (1) outside, and can be under the driving of secondary vertical shift mechanism (12)
Relatively main bridge (1) moves forward, and the preceding access bridge (14), which is hingedly mounted on the front end of front launching nose (11) and can be flipped up, packs up,
It corrects and rides on front launching nose (11) under access bridge (4) before host bridge；
Step 2, inverted arch are excavated (A) operation of the area Chu Zhi and are carried out using stages cycle mode；
Telescopic moving trestle is packed up preceding access bridge (14) first, and digging machine, which is located in front of Telescopic moving trestle, to be excavated, and is slagged tap
The front end that vehicle is parked in front launching nose (11) carries out dress slag operation, after completing a bit of inverted arch excavation, packs up auxiliary leg (13), passes through
Secondary vertical shift mechanism (12) pushes front launching nose (11) to proceed to down a bit of inverted arch to be excavated, and auxiliary leg (13) is put down, upper one
Segment, which has excavated, is laid with steel arch-shelf, reinforced mesh in inverted arch, connects reinforcing bar, then carry out gunite concrete, in completion it is a bit of
Excavate the excavation and support of inverted arch；
Operation is continued cycling through in the manner described above, until preceding access bridge (14) are put down after completing the inverted arch excavation area Chu Zhi (A) operation,
Telescopic moving trestle restores to pass through；
Step 3, inverted arch are excavated while the area Chu Zhi (A) constructs or after the completion of the inverted arch excavation area Chu Zhi (A) construction, are faced upward
Arch lining builds the reinforcing bar binding of area (B)；After the completion of reinforcing bar binding, the preceding vertical shift trolley (2) of Telescopic moving trestle and rear vertical shift are small
Inverted arch template is transported to inverted arch lining cutting area (B) after the adjustment of inverted arch template is had good positioning by inverted arch fill area (C) extension jointly and poured by vehicle (3)
Build inverted arch lining cutting area (B) concrete；Meanwhile rear vertical shift trolley (3) returns to Telescopic moving trestle tail portion, centre of pull ditch mould
Plate after completing Central drain Template Location, then pours inverted arch fill area (C) concrete to inverted arch fill area (C)；
Step 4 after inverted arch fill area (C) concrete strength is up to standard, starts mobile collapsible movable trestle, packs up rear access bridge
(5), rear running mechanism (6) supports fill surface by oil cylinder, and rear support leg (9) leaves fill surface, packs up front leg strut (7), middle supporting leg
(8) it plays a supportive role, pushes main bridge (1) to move forward by Zhu Qiao vertical shift mechanism (10) a bit of, put down front leg strut (7), receive
Supporting leg (8) in rising, it is a bit of by supporting leg (8) forward movement in Zhu Qiao vertical shift mechanism (10) traction, it puts down middle supporting leg (8), weight
Multiple operation moves on, until the accumulative stroke of mobile collapsible movable trestle is equal to the length of inverted arch fill area (C)；Traveling afterwards
Mechanism (6) is fallen after rise, is fallen in rear support leg (9) in fill surface, is put down rear access bridge (5), and Telescopic moving trestle restores to pass through, and is entered
Next construction circulation.
2. tunnel inverted arch subregion operation break-down streamlined construction method described in accordance with the claim 1, it is characterised in that: described flexible
54 meters of formula movable trestle overall length, main bridge (1) is 30 meters long, and front launching nose (11) is 19 meters long.
3. according to the tunnel inverted arch subregion operation break-down streamlined construction method of claim 1, it is characterised in that:
The inverted arch excavates 12 meters of the area Chu Zhi (A), inverted arch lining cutting area (B) and each length of inverted arch fill area (C)；
In step 2, a bit of inverted arch for completing 3 meters of length every time excavates and supporting, completes the inverted arch of 12 meters of length in four times
Excavate the operation of the area Chu Zhi (A)；In step 4, Telescopic moving trestle moves forward 6 meters every time, makes two bites at a cherry one and applies
Work recycles 12 meters of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786343.8A CN110454197B (en) | 2019-08-23 | 2019-08-23 | Tunnel inverted arch partition and sub-process streamlined construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786343.8A CN110454197B (en) | 2019-08-23 | 2019-08-23 | Tunnel inverted arch partition and sub-process streamlined construction method |
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| CN110454197B CN110454197B (en) | 2020-08-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577345A (en) * | 2020-05-20 | 2020-08-25 | 中铁二局第二工程有限公司 | Construction method and construction system for multilayer anti-seepage tunnel bottom structure |
| CN111663430A (en) * | 2020-06-09 | 2020-09-15 | 中铁十一局集团汉江重工有限公司 | Angularly adjustable and horizontal adjustable removes landing stage |
| CN111734453A (en) * | 2020-06-04 | 2020-10-02 | 中铁十二局集团第三工程有限公司 | Construction method of self-propelled inverted arch arc-shaped formwork movable trestle |
| CN116771389A (en) * | 2023-08-17 | 2023-09-19 | 中铁五局集团第一工程有限责任公司 | Full-ring lining device for traffic tunnel and construction method |
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| CN111577345B (en) * | 2020-05-20 | 2022-02-08 | 中铁二局第二工程有限公司 | Construction method and construction system for multilayer anti-seepage tunnel bottom structure |
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| CN111663430A (en) * | 2020-06-09 | 2020-09-15 | 中铁十一局集团汉江重工有限公司 | Angularly adjustable and horizontal adjustable removes landing stage |
| CN111663430B (en) * | 2020-06-09 | 2022-02-22 | 中铁十一局集团汉江重工有限公司 | Angularly adjustable and horizontal adjustable removes landing stage |
| CN116771389A (en) * | 2023-08-17 | 2023-09-19 | 中铁五局集团第一工程有限责任公司 | Full-ring lining device for traffic tunnel and construction method |
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