CN110410114B - Construction method of tunnel lining rack combined movable inverted arch trestle - Google Patents

Construction method of tunnel lining rack combined movable inverted arch trestle Download PDF

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Publication number
CN110410114B
CN110410114B CN201910787485.6A CN201910787485A CN110410114B CN 110410114 B CN110410114 B CN 110410114B CN 201910787485 A CN201910787485 A CN 201910787485A CN 110410114 B CN110410114 B CN 110410114B
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China
Prior art keywords
rack
inverted arch
tunnel lining
trestle
movable inverted
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CN201910787485.6A
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Chinese (zh)
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CN110410114A (en
Inventor
王元清
陈浩
李勇
骆云超
吕虎
王嵽显
索继生
程波
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Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
China Railway 11th Bureau Group Hanjiang Heavy Industry Co Ltd
Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
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Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
China Railway 11th Bureau Group Hanjiang Heavy Industry Co Ltd
Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
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Application filed by Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd, China Railway 11th Bureau Group Hanjiang Heavy Industry Co Ltd, Zhengzhou New Dafang Heavy Industries and Technology Co Ltd filed Critical Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Priority to CN201910787485.6A priority Critical patent/CN110410114B/en
Publication of CN110410114A publication Critical patent/CN110410114A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining 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
    • E21D11/105Transport 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/40Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries

Abstract

The invention relates to a construction method of a tunnel lining rack combined movable inverted arch trestle, which comprises the following steps of jacking a lifting support leg of the tunnel lining rack and shifting an equipment anchor; secondly, moving the whole tunnel lining rack forwards; step three, repeating the step one and the step two; fourthly, a rack dragging trolley equipped on the movable inverted arch trestle pulls the tunnel lining trestle to walk on the movable inverted arch trestle, and after the tunnel lining trestle is in place, the tunnel lining trestle can be spanned on the movable inverted arch trestle to be bound with steel bars or paved with waterproof boards; step five: and when the strength of the tunnel inverted arch concrete reaches, moving the inverted arch trestle forwards, and keeping the tunnel lining trestle in place until entering the next operation cycle. Realize that the lining cutting rack strides and carries out the cross operation on removing the invert trestle to solve tunnel lining reinforcement, waterproof board shop and hang the construction and can not go on the invert trestle, thereby restrict the problem of lining cutting construction progress.

Description

Construction method of tunnel lining rack combined movable inverted arch trestle
Technical Field
The invention relates to the technical field of engineering construction methods, in particular to a construction method of a rack combined inverted arch trestle.
Background
At present, tunnel lining reinforcing bar rack, waterproof board rack are single set of rack, and the operation alone realizes that reinforcing bar installation and waterproof board are spread and are hung, and lining cutting reinforcing bar rack, waterproof board rack all are located invert trestle rear, accomplish the back by invert trestle to tunnel invert construction, carry out tunnel lining construction by lining cutting reinforcing bar rack, waterproof board rack again. The defects of the prior art are reflected in the following points:
(1) the operation space is large, and the safety step distance of the tunnel is large. The two operation platforms generally occupy the tunnel safety step distance of 16-24 m, the mechanized construction of the railway operation line is relatively independent, the operation line needs to be lengthened for avoiding mutual interference due to large mechanized construction space during parallel construction, and especially the safety step distance is increased for the steel bars, the waterproof plates and the two lining operation lines.
(2) The device does not have the function of an inverted arch trestle on the bench and does not have the condition of realizing cross operation with an inverted arch.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a construction method for a tunnel lining rack combined movable inverted arch trestle, which realizes that a lining rack strides on the movable inverted arch trestle to perform cross operation, solves the problem that the lining construction progress is restricted because the binding of tunnel lining steel bars and the paving and hanging construction of waterproof boards cannot be performed on the inverted arch trestle, and can effectively control the safe step pitch of the lining construction.
Therefore, the technical scheme adopted by the invention is as follows: a construction method of a tunnel lining rack combined movable inverted arch trestle comprises a rack main body, wherein the bottom of the rack main body is provided with an equipment foot and a rack stepping oil cylinder, four corner positions of the rack main body are provided with lifting support legs, the rack main body is provided with a front guide wheel, a rear guide wheel and a traveling frame, and the movable inverted arch trestle is provided with a rack dragging trolley; the method comprises the following steps:
jacking a lifting support leg of a tunnel lining rack, lifting an equipment ground foot, enabling the lifting support leg to play a supporting role, retracting a rack stepping oil cylinder, shifting the equipment ground foot, retracting the lifting support leg, and enabling the equipment ground foot to fall to the ground;
step two, the lifting support legs are continuously retracted to lift off the ground, the ground feet of the equipment play a supporting role, and the rack stepping oil cylinder pushes the rack main body to realize the integral forward movement of the tunnel lining rack;
step three, repeating the step one and the step two to enable the whole tunnel lining rack to move forwards continuously;
after a front guide wheel of the tunnel lining rack reaches the upper part of a main beam of the movable inverted arch trestle, lifting the movable inverted arch trestle to enable the front guide wheel to fall on the main beam of the movable inverted arch trestle; the tunnel lining rack continuously steps forwards until the rear guide wheel falls onto a main beam of the movable inverted arch trestle, lifting support legs of the tunnel lining rack are operated to lift so as to drive the walking rack to lift, a rack dragging trolley equipped on the movable inverted arch trestle pulls the tunnel lining rack to walk on the movable inverted arch trestle, and after the tunnel lining rack is in place, the tunnel lining rack can be straddled on the movable inverted arch trestle to perform reinforcement binding or waterproof board laying;
step five: when the strength of tunnel inverted arch concrete reaches, when the movable inverted arch trestle moves forward, the lifting support legs of the tunnel lining trestle are jacked, the front guide wheels and the rear guide wheels are separated from the movable inverted arch trestle, and the equipment anchor falls on the tunnel inverted arch to play a supporting role; in the moving forward process of the movable inverted arch trestle, the tunnel lining trestle is fixed in place, so that the independent operation of the movable inverted arch trestle and the tunnel lining trestle is realized until the next operation cycle is started.
Preferably, the tunnel lining rack is further provided with a waterproof board automatic paving and hanging mechanism, an auxiliary mechanical arm, a high-low lifting platform and a left-right telescopic mechanism, steel bars can be bound, the waterproof board can be paved and hung, and the automation degree is high.
The invention has the beneficial effects that:
(1) the safety step pitch is shortened, and the minimum requirement is met. The tunnel lining rack is used for striding on the movable inverted arch trestle to realize synchronous construction of lining and inverted arch, and the minimum distance between the closed loop of the two linings and the tunnel face can meet the construction requirement of the safe step distance of 70m of V-level surrounding rock.
(2) And cross operation is realized, and the comprehensive progress is improved. Compared with the traditional construction process, the construction progress is greatly improved by binding the steel bars and paving and hanging the waterproof boards.
(3) The working space is optimized, and the personnel allocation is reduced. The tunnel lining rack strides and is deeply fused with the movable inverted arch trestle, the tunnel lining rack can be used for carrying out construction of reinforcing steel bars and waterproof boards on the movable inverted arch trestle, the operation space is optimized to be 0-6.5 m, and the safety step distance is greatly shortened; the construction of the corresponding waterproof board and lining reinforcing steel bars can reduce 8 persons, and the safe, high-quality and high-efficiency construction of the tunnel lining is integrally and effectively promoted.
Drawings
Figure 1 is a longitudinal section view of a tunnel lining trestle straddling a mobile inverted arch trestle.
Figure 2 is a cross-sectional view of a tunnel lining gantry straddling a mobile inverted arch trestle.
Fig. 3 is a schematic structural view of a tunnel lining rack.
Fig. 4 is a side view of fig. 3.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
a construction method for a tunnel lining rack combined movable inverted arch trestle needs to utilize the tunnel lining rack and the movable inverted arch trestle.
As shown in fig. 1 to 4 in conjunction, a tunnel lining skid a includes a skid main body 1; the bottom of the rack main body 1 is provided with an equipment anchor 2 and a rack stepping oil cylinder 5, and the stepping oil cylinder 5 is used for shifting the equipment anchor 2 and pushing the whole tunnel lining rack to move forwards. Four corner positions of the rack main body 1 are respectively provided with a lifting supporting leg 3, so that the ground feet 2 of the equipment are lifted off the ground, and the tunnel lining rack is lifted integrally. The main body 1 is provided with a front guide wheel 6, a rear guide wheel 7 and a walking frame 8. The movable inverted arch trestle B is provided with a trestle dragging trolley 4 for dragging the tunnel lining trestle to walk on the movable inverted arch trestle.
Preferably, the tunnel lining rack is also provided with a waterproof board automatic paving and hanging mechanism 9, an auxiliary mechanical arm 10, a high-low lifting platform 11 and a left-right telescopic mechanism 12, and the tunnel lining rack is used as a two-in-one multifunctional trolley which can be used for binding steel bars and paving and hanging waterproof boards, and has high automation degree.
A construction method of a tunnel lining rack combined movable inverted arch trestle comprises the following steps:
step one, jacking lifting support legs 3 of a tunnel lining rack, enabling equipment feet 2 to be off the ground, enabling the lifting support legs 3 to play a supporting role, retracting a rack stepping oil cylinder 5, enabling the equipment feet 2 to be shifted, retracting the lifting support legs 3, and enabling the equipment feet 2 to fall to the ground.
And step two, the lifting support legs 3 continue to be retracted off the ground, the equipment feet 2 play a supporting role, and the rack stepping oil cylinder 5 pushes the rack main body 1 to realize the integral forward movement of the tunnel lining rack.
And step three, repeating the step one and the step two to enable the whole tunnel lining rack to move forwards continuously. Namely, the tunnel lining rack needs to be integrally stepped forward for multiple times before being arranged on the movable inverted arch trestle.
And step four, after the front guide wheel 6 of the tunnel lining rack reaches the upper part of the main beam of the movable inverted arch trestle, lifting the movable inverted arch trestle to enable the front guide wheel 6 to fall on the main beam of the movable inverted arch trestle. The tunnel lining trestle continues to step forward until the rear guide wheel 7 falls on the main beam of the movable inverted arch trestle. The lifting support legs 3 of the tunnel lining rack are operated to lift to drive the walking frame 8 to lift, the rack dragging trolley 4 equipped on the movable inverted arch trestle pulls the tunnel lining rack to walk on the movable inverted arch trestle, and after the tunnel lining rack is in place, steel bar binding or waterproof board paving and hanging can be carried out on the movable inverted arch trestle by straddling. When the two-in-one multifunctional trolley is adopted, the steel bar binding and the waterproof board paving and hanging can be realized on the movable inverted arch trestle. The tunnel lining rack and the movable inverted arch trestle are mutually cooperated to work, so that simultaneous construction of lining and inverted arch is realized.
During the period that the inverted arch does not reach the strength, the tunnel lining rack is used for waterproof board paving and hanging operation and reinforcement through riding the movable inverted arch trestle. The combined operation can be carried out when the binding length of the longitudinal steel bars is larger; when any procedure is delayed, the double working faces of the two tunnel lining platforms can also work simultaneously.
Step five: when the strength of tunnel invert concrete reaches the back, when removing the invert trestle and move forward, 3 jacking of the lift landing leg of tunnel lining rack, preceding leading wheel 6, back leading wheel 7 break away from and remove the invert trestle, and equipment lower margin 2 falls on the tunnel invert and plays the supporting role. At this moment, the movable inverted arch trestle moves forwards to perform construction of the inverted arch concrete of the next section of tunnel, the strength of the inverted arch concrete of the tunnel is enough, and the tunnel lining rack falls on the inverted arch of the tunnel by using the equipment anchor 2 to continue lining construction.
In the moving forward process of the movable inverted arch trestle, the tunnel lining trestle is fixed in place, so that the independent operation of the movable inverted arch trestle and the tunnel lining trestle is realized until the next operation cycle is started.
According to the method, the tunnel lining rack is provided with the guide wheels and the dragging trolley, so that the tunnel lining rack can straddle on the movable inverted arch trestle, binding of tunnel arch wall lining steel bars and synchronous construction of waterproof boards paved on the trestle and the tunnel inverted arch are realized, the labor intensity of workers is effectively reduced, the construction efficiency is improved, and the safety step is shortened.

Claims (2)

1. A construction method of a tunnel lining rack combined movable inverted arch trestle is characterized in that the tunnel lining rack (A) comprises a rack main body (1), the bottom of the rack main body (1) is provided with an equipment foot (2) and a rack stepping oil cylinder (5), four corner positions of the rack main body (1) are provided with lifting support legs (3), the rack main body (1) is provided with a front guide wheel (6), a rear guide wheel (7) and a walking frame (8), and the movable inverted arch trestle (B) is provided with a rack dragging trolley (4); the method comprises the following steps:
jacking a lifting support leg (3) of a tunnel lining rack, lifting an equipment anchor (2) off the ground, supporting the lifting support leg (3), retracting a rack stepping oil cylinder (5), shifting the equipment anchor (2), retracting the lifting support leg (3), and enabling the equipment anchor (2) to fall to the ground;
step two, the lifting support legs (3) continue to be retracted to the ground, the equipment ground feet (2) play a supporting role, and the rack stepping oil cylinder (5) pushes the rack main body (1) to realize the integral forward movement of the tunnel lining rack;
step three, repeating the step one and the step two to enable the whole tunnel lining rack to move forwards continuously;
fourthly, after a front guide wheel (6) of the tunnel lining rack reaches the upper part of a main beam of the movable inverted arch trestle, lifting the movable inverted arch trestle to enable the front guide wheel (6) to fall on the main beam of the movable inverted arch trestle; the tunnel lining rack continuously steps forwards until a rear guide wheel (7) falls onto a main beam of the movable inverted arch trestle, a lifting support leg (3) of the tunnel lining rack is operated to lift to drive a walking frame (8) to lift, a rack dragging trolley (4) equipped for the movable inverted arch trestle pulls the tunnel lining rack to walk on the movable inverted arch trestle, and after the tunnel lining rack is in place, the tunnel lining rack can be straddled on the movable inverted arch trestle to perform reinforcement binding or waterproof board laying;
step five: when the strength of tunnel inverted arch concrete reaches, when the movable inverted arch trestle moves forwards, the lifting support leg (3) of the tunnel lining trestle lifts, the front guide wheel (6) and the rear guide wheel (7) are separated from the movable inverted arch trestle, and the equipment anchor (2) falls on the tunnel inverted arch to play a supporting role; in the moving forward process of the movable inverted arch trestle, the tunnel lining trestle is fixed in place, so that the independent operation of the movable inverted arch trestle and the tunnel lining trestle is realized until the next operation cycle is started.
2. The construction method of the tunnel lining trestle combined movable inverted arch trestle according to claim 1, characterized in that: the tunnel lining rack is also provided with a waterproof board automatic paving and hanging mechanism (9), an auxiliary mechanical arm (10), a high-low lifting platform (11) and a left-right telescopic mechanism (12).
CN201910787485.6A 2019-08-23 2019-08-23 Construction method of tunnel lining rack combined movable inverted arch trestle Active CN110410114B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910787485.6A CN110410114B (en) 2019-08-23 2019-08-23 Construction method of tunnel lining rack combined movable inverted arch trestle

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Application Number Priority Date Filing Date Title
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CN110410114B true CN110410114B (en) 2020-09-04

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5870872A (en) * 1997-11-11 1999-02-16 Stuppy, Incorporated Applicator for ceiling panels of light tunnel
CN201496071U (en) * 2009-06-24 2010-06-02 文同轩 Trestle bridge type circular needle beam trolley
CN105649654B (en) * 2016-03-17 2017-08-01 湖南五新模板有限公司 Automatic hydraulic inverted arch trestle chassis and its construction method
CN207063987U (en) * 2016-12-22 2018-03-02 中铁五局集团有限公司 A kind of step device of stepping type self movable trestle
JP2019039258A (en) * 2017-08-28 2019-03-14 株式会社フジタ Telescopic arch center type secondary lining method of tunnel
CN107956488A (en) * 2017-12-27 2018-04-24 中铁工程装备集团有限公司 A kind of splash guard reinforcing bar spreads hanging platform car
CN208686396U (en) * 2018-09-24 2019-04-02 重庆工商职业学院 Tunnel inverted arch trestle walking rack
CN209604015U (en) * 2018-12-29 2019-11-08 中铁隧道集团三处有限公司 A kind of simple trestle for tunnel

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Inventor after: Wang Yuanqing

Inventor after: Zheng Xinming

Inventor after: Chen Hao

Inventor after: Li Yong

Inventor after: Luo Yunchao

Inventor after: Lv Hu

Inventor after: Wang Dixian

Inventor after: Suo Jisheng

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