CN102889085B - Tunneling construction method for shield tunneling machine - Google Patents

Tunneling construction method for shield tunneling machine Download PDF

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Publication number
CN102889085B
CN102889085B CN201210386776.2A CN201210386776A CN102889085B CN 102889085 B CN102889085 B CN 102889085B CN 201210386776 A CN201210386776 A CN 201210386776A CN 102889085 B CN102889085 B CN 102889085B
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CN
China
Prior art keywords
shield machine
construction
hole
oil cylinder
cavity
Prior art date
Application number
CN201210386776.2A
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Chinese (zh)
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CN102889085A (en
Inventor
胡劲松
陈立生
赵国强
龚叶峰
卢礼顺
陈介华
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上海城建市政工程(集团)有限公司
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Priority to CN201210386776.2A priority Critical patent/CN102889085B/en
Publication of CN102889085A publication Critical patent/CN102889085A/en
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Publication of CN102889085B publication Critical patent/CN102889085B/en

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Abstract

The invention belongs to the field of underground construction and in particular relates to a tunneling construction method for a shield tunneling machine. The tunneling construction method comprises the following steps: detaching a sealed door on a wall of a working well before the shield tunneling machine enters the tunnel; erecting a shield tunneling machine tunnel-entering receiving device on the ground of the working well, wherein the shield tunneling machine tunnel-entering receiving device is specifically an open cavity which is tightly adhered to the wall of the working well, a cylinder frame is arranged in the cavity, at least two cylinders are fixed on the cylinder frame, and ejection plates are fixed at front ends of piston rods of the cylinders and are tightly adhered to the wall of the working well; starting the shield tunneling machine to advance forwards, and allowing a cutter head of the shield tunneling machine to press against the ejector plates and move forward at a constant speed until the shield tunneling machine completely leaves the tunnel, wherein the pressure of the cylinder is equal to the pressure of the shield tunneling machine acting on the ejector plates. The tunneling construction method has the advantages that the tunneling safety coefficient of the shield tunneling machine is high, and water burst and sand drainage phenomena in the soil body of the tunnel opening can be avoided; and moreover, the construction method is easy, convenient and rapid, and the required construction equipment is simple in structure and convenient to manufacture and transport.

Description

A kind of shield machine enters the construction method in hole
Technical field
The invention belongs to underground engineering field, be specifically related to a kind of shield machine and enter the construction method in hole.
Background technology
In the time of set of tunneling construction, shield structure is to be generally advanced into another active well from an active well, and shield machine enters soil layer from active well through hole to be provided circle, is shield machine and appears, from soil layer, enter again another reserved active well, be shield machine and enter hole.Conventionally in the time that shield machine enters hole, seal up a door and be removed, if shield driving area soil property is poor or sand factor is higher, the outer soil body of well is not able to support oneself, and in well, the sealing device of hole circle can't stop the soil body outside hole, so the soil body enters in well outside hole thereupon, cause land subsidence or water burst to leak husky, near impact, the safe handling of underground utilities and above ground structure, as serious in situation, causes down-hole to construct.
In order to ensure the safety of underground existing pipeline and the normal construction of down-hole, conventionally enter advance row relocation of services and to end well outside carrying out ground stabilization and soil stabilization processing, as precipitation, ground stabilization, freezing process etc. of hole at shield machine.But above ground stabilization technique has certain limitation and complicated construction technique, construction equipment costliness.
Chinese patent " 200810042556.1 " discloses a kind of shield receiving system and start tunneling method thereof, at tunnel mouth place, sealing arranges a cavity to this start tunneling method, the upper cover plate of this cavity can outwards turn down, simulate the soil pressure environment at tunnel mouth place simultaneously by filled with water in cavity and mud, in order to avoid shield machine tunnels forward tunnel mouth place in the time entering cavity, the phenomenons such as water burst leakage sand occur.But the drawback of this scheme in Specific construction is also apparent, and a large amount of mud is sent in cavity, and be a great engineering by a large amount of mud discharges after construction completes, not only waste time and energy but also make job site form filthy scene.
Therefore those skilled in the art are badly in need of a kind of invention, not only can guarantee that shield machine enters safely smoothly hole but also can guarantee that the hole soil body can support oneself, prevent the construction method that soil body when shield machine enters hole runs off.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art part, provide a kind of shield machine to enter the construction method in hole, this construction method is by arranging an open-ended cavity at tunnel mouth place, in described cavity, be provided with oil cylinder, the piston rod front end of oil cylinder is fixed a top board, provide a pressure identical with shield machine by described oil cylinder to top board, avoid leaking sofa life into the water burst at hole place so that shield machine can enter hole smoothly.
The object of the invention realizes and being completed by following technical scheme:
A kind of shield machine enters the construction method in hole, the shield machine that this construction method is specifically related to tunnel, active well and works in described tunnel, it is characterized in that described method at least comprises the steps: 1. to enter before hole at described shield machine, first remove and be arranged at sealing up a door on the described active well borehole wall; 2. set up shield machine on described active well ground thereafter and enter hole receiving system, described shield machine enters hole receiving system and is specially an open-ended cavity of being close to the active well borehole wall, in described cavity, be provided with oil cylinder framework, on described oil cylinder framework, be at least fixed with two oil cylinders, piston rod front end on described oil cylinder is fixed a top board and is close to the active well borehole wall simultaneously, and the piston rod on wherein said oil cylinder is stretched to range state; 3. in described active well, on the borehole wall of relative tunnel, set up subsequently a rear seat and be arranged at the oil cylinder framework in cavity described in fixing; 4. start described shield machine and tunnel forward, described in the cutterhead of shield machine withstands, be close to the top board of the borehole wall and at the uniform velocity travel forward, until described shield machine leaves described tunnel completely; The pressure of wherein said oil cylinder equals described shield machine and acts on the pressure on top board; 5. complete out the structure construction at hole; 6. remove the shield machine that 2. step arrange and enter hole receiving system.
Between described cavity and the described active well borehole wall, seal washer is installed.
On described top board, be provided with at least two blocks, the thickness of described block is greater than the thickness of described cutter head of shield machine front end ridge.
Gap location between described cavity and the active well borehole wall is provided with axiality cushion block, in order to guarantee that described shield machine can horizontal rectilinear motion.
The length of described cavity is at least 1/3 of shield machine length.
Described shield machine between described cavity and rear seat, is provided with operation slideway so that can continue to slide after going out cavity.
After the piston rod on described oil cylinder is compressed to least limit stroke by shield machine, stop the driving of described shield machine, mobile described oil cylinder framework makes piston rod again be stretched to range state backward, and again oil cylinder framework is fixed by described rear seat, thereafter again starting shield machine tunnels forward, and so forth, until described shield machine leaves described tunnel completely.
Advantage of the present invention is that it is high that shield machine enters hole safety factor, can guarantee that the hole soil body water burst can not occur and leaks husky phenomenon; Construction method is easy, and required construction equipment is simple in structure fast, and convenient manufacture transported; The clean and tidy health in job site.
Brief description of the drawings
Fig. 1 is that in the present invention, shield machine enters structure of the window schematic diagram before hole;
Fig. 2 is arranged in the present invention to enter hole receiving system schematic diagram into hole place;
Fig. 3 is that in the present invention, shield machine enters hole schematic diagram;
Fig. 4 is the block distribution schematic diagram being arranged in the present invention on top board;
Fig. 5 is arranged in the present invention preferably to enter hole receiving system schematic diagram into hole place;
Fig. 6 is that in the present invention, shield machine enters the schematic diagram of hole when preferably entering on the receiving system of hole;
Fig. 7 is the schematic diagram of shield machine on operation slideway in the present invention.
Detailed description of the invention
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As Fig. 1-7, in figure, mark 1-22 is respectively: active well 1, seal up a door 2, the borehole wall 3, cutterhead 4, tunnel 5, shield machine 6, front end ridge 7, enter hole 8, the borehole wall 9, oil cylinder framework 10, oil cylinder 11, cavity 12, seal washer 13, axiality cushion block 14, block 15, top board 16, piston rod 17, base 18, support bar 19, rear seat 20, operation slideway 21, pulley 22.
Embodiment mono-: as Figure 1-4, the present embodiment is the construction method that a kind of shield machine that belongs to underground engineering field enters hole, the shield machine 6 that is specifically related to active well 1, tunnel 5 and works in tunnel 5, the realization of this construction method is specifically completed by following steps:
1. when shield machine 6 stop propelling construction from time close to sealing up a door foremost, remove to be arranged on and seal up a door 2 on the borehole wall 3, and lay base 18 on the ground of active well 1;
2. then utilize goliath that the cavity of both ends open 12 is erected on the base 18 in active well 1, and cavity 12 and the borehole wall 3 are close to, for guaranteeing cavity 12 and the sealing of entering 8 places, hole, between cavity 12 and the borehole wall 3, be provided with seal washer 13; Axiality rectilinear motion for guaranteeing that shield machine 6 thereafter can be in cavity 12 simultaneously, the seam crossing between cavity 12 and the borehole wall 3 arranges axiality cushion block 14; Wherein the length of cavity 12 is greater than the length of shield machine 6, and shield machine 6 can be held completely by cavity 12;
3. in cavity 12, set up thereafter oil cylinder framework 10, on oil cylinder framework 10, be fixed with four oil cylinders 11, the piston rod 17 of oil cylinder 11 is stretched to range, and the front end of piston rod 17 welds together with top board 16 simultaneously, wherein top board 16 before shield machine 6 enters hole near the borehole wall 3; On cutterhead 4 due to shield machine 6, have front end ridge 7, therefore, in order to increase the contact area of top board 16 and shield machine 6, four blocks 15 are evenly set on the face of top board 16, the thickness of described block 15 is greater than the thickness of the front end ridge 7 on cutterhead 4;
4. after oil cylinder framework 10 installs, for guaranteeing that oil cylinder framework 10 maintains static when advanced top pressure by shield machine 6, one rear seat 20 is set on the borehole wall 9 in active well 1, the support bar 19 stretching out on rear seat 20 is bolted on oil cylinder framework 10, with thinking that oil cylinder framework 10 provides counter-force to support;
5. starting shield machine 6 tunnels forward, described in cutterhead 4 on shield machine 6 withstands, be close to the top board 16 on the borehole wall 3 and at the uniform velocity push ahead, now the pressure of oil cylinder 11 equals shield machine 6 and acts on the pressure on top board 16, prevents that in order to simulate a pressure that enters hole 8 place's soil bodys the soil body from caving in; Shield machine 6 continues at the uniform velocity to advance forward, enters in cavity 12 until sail out of tunnel 5 completely, and now shield machine 6 completes into hole operation; Quit work, by goliath, cavity 12 is together hung together with shield machine 6.
Embodiment bis-: as shown in Fig. 1,4,5,6,7, the present embodiment is preferred version of the present invention, the length that is cavity 12 with the difference of embodiment mono-diminishes, the length of cavity 12 is reduced to 1/3 of shield machine 6 length, because the length of cavity 12 changes, therefore construction sequence also has larger change, and concrete steps are as follows:
1. when shield machine 6 stop propelling construction from time close to sealing up a door foremost, remove to be arranged on and seal up a door 2 on the borehole wall 3, and lay base 18 on the ground of active well 1;
2. then utilize goliath that the cavity of both ends open 12 is erected on the base 18 in active well 1, and cavity 12 and the borehole wall 3 are close to, for guaranteeing cavity 12 and the sealing of entering 8 places, hole, between cavity 12 and the borehole wall 3, be provided with seal washer 13; Axiality rectilinear motion for guaranteeing that shield machine 6 thereafter can be in cavity 12 simultaneously, the seam crossing between cavity 12 and the borehole wall 3 arranges axiality cushion block 14; Wherein the length of cavity 12 is 1/3 of shield machine 6 length;
3. because cavity 12 length are shorter, therefore after cavity 12, connect operation slideway 21, described slideway 21 is specially semicircle slideway, its with the contact surface of shield machine 6 on evenly lay some pulleys 22, to facilitate thereafter shield machine 6 in the propelling moving on slideway 21;
4. on operation slideway 21, set up oil cylinder framework 10 thereafter, on oil cylinder framework 10, be fixed with four oil cylinders 11, the piston rod 17 of oil cylinder 11 is stretched to range, and the front end of piston rod 17 welds together with top board 16 simultaneously, wherein top board 16 before shield machine 6 enters hole near the borehole wall 3; On cutterhead 4 due to shield machine 6, have front end ridge 7, therefore, in order to increase the contact area of top board 16 and shield machine 6, four blocks 15 are evenly set on the face of top board 16, the thickness of described block 15 is greater than the thickness of the front end ridge 7 on cutterhead 4;
5. after oil cylinder framework 10 installs, for guaranteeing that oil cylinder framework 10 maintains static when advanced top pressure by shield machine 6, one rear seat 20 is set on the borehole wall 9 in active well 1, the support bar 19 stretching out on rear seat 20 is bolted on oil cylinder framework 10, with thinking that oil cylinder framework 10 provides counter-force to support; Wherein said support bar 19 is detachably changed, and therefore the visual Specific construction of the length of support bar 19 requires and changes;
6. starting shield machine 6 tunnels forward, described in cutterhead 4 on shield machine 6 withstands, be close to the top board 16 on the borehole wall 3 and at the uniform velocity push ahead, now the pressure of oil cylinder 11 equals shield machine 6 and acts on the pressure on top board 16, prevents that in order to simulate a pressure that enters hole 8 place's soil bodys the soil body from caving in; Shield machine 6 continues at the uniform velocity to advance forward, in the time that piston rod 17 is compressed to minimum stroke by shield machine 6, suspend the propelling of shield machine 6, dismantle described support bar 19 fixing for oil cylinder framework 10, to the direction Shift cylinder framework 10 of the borehole wall 9, so that piston rod 17 is stretched to range again, and changes shorter support bar 19 oil cylinder framework 10 is retightened; Again start shield machine 6 and at the uniform velocity advance forward, and so forth, enter in cavity 12 and move on slideway 21 until sail out of tunnel 5 completely, now shield machine 6 completes into hole operation; Quit work, by goliath, shield machine 6 is hung to job site.
In sum, according to the different demand in job site and equipment situation, constructor can freely select length or shorter cavity 12 of length, and constructs according to the step in embodiment mono-or embodiment bis-.

Claims (7)

1. a shield machine enters the construction method in hole, the shield machine that this construction method is specifically related to tunnel, active well and works in described tunnel, it is characterized in that described method at least comprises the steps: 1. to enter before hole at described shield machine, first remove and be arranged at sealing up a door on the described active well borehole wall; 2. set up shield machine on described active well ground thereafter and enter hole receiving system, described shield machine enters hole receiving system and is specially an open-ended cavity of being close to the active well borehole wall, in described cavity, be provided with oil cylinder framework, on described oil cylinder framework, be at least fixed with two oil cylinders, piston rod front end on described oil cylinder is fixed a top board and is close to the active well borehole wall simultaneously, and the piston rod on wherein said oil cylinder is stretched to range state; 3. in described active well, relatively on the borehole wall of tunnel, set up a rear seat in order to be fixedly installed on the described oil cylinder framework in cavity subsequently, the support bar stretching out on described rear seat is bolted on described oil cylinder framework, with thinking that described oil cylinder framework provides counter-force to support; 4. start described shield machine and tunnel forward, the cutterhead of shield machine withstands to be close to the described top board of the borehole wall and at the uniform velocity to travel forward, until described shield machine leaves described tunnel completely; The pressure of wherein said oil cylinder equals described shield machine and acts on the pressure on top board; 5. complete out the structure construction at hole; 6. remove the shield machine that 2. step arrange and enter hole receiving system.
2. a kind of shield machine according to claim 1 enters the construction method in hole, it is characterized in that, between described cavity and the described active well borehole wall, seal washer is installed.
3. a kind of shield machine according to claim 1 enters the construction method in hole, it is characterized in that being provided with at least two blocks on described top board, and the thickness of described block is greater than the thickness of described cutter head of shield machine front end ridge.
4. a kind of shield machine according to claim 1 enters the construction method in hole, it is characterized in that the gap location between described cavity and the active well borehole wall is provided with axiality cushion block, in order to guarantee that described shield machine can horizontal rectilinear motion.
5. a kind of shield machine according to claim 1 enters the construction method in hole, it is characterized in that the length of described cavity is at least 1/3 of shield machine length.
6. a kind of shield machine according to claim 5 enters the construction method in hole, it is characterized in that being provided with operation slideway so that described shield machine can continue to slide after going out cavity between described cavity and rear seat.
7. a kind of shield machine enters the construction method in hole according to claim 1 or 5, it is characterized in that after the piston rod on described oil cylinder is compressed to least limit stroke by shield machine, stop the driving of described shield machine, mobile described oil cylinder framework makes piston rod again be stretched to range state backward, and again oil cylinder framework is fixed by described rear seat, again start shield machine and tunnel forward thereafter, and so forth, until described shield machine leaves described tunnel completely.
CN201210386776.2A 2012-10-14 2012-10-14 Tunneling construction method for shield tunneling machine CN102889085B (en)

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Application Number Priority Date Filing Date Title
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CN102889085B true CN102889085B (en) 2014-09-03

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Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
CN102877852A (en) * 2012-10-16 2013-01-16 上海城建市政工程(集团)有限公司 Hole opening structure for shield machine to enter hole
CN103352704B (en) * 2013-07-29 2015-07-15 北京住总集团有限责任公司 Construction method for enabling tunnel shield to pass through vertical shaft structure
CN106401594B (en) * 2016-07-26 2018-08-07 福建工程学院 A kind of compound knife disc tool method for arranging of shield machine
CN106223963B (en) * 2016-08-05 2019-01-29 中国水利水电第十四工程局有限公司 A kind of shield machine air pushing passes through the construction method in subsurface excavation method tunnel
CN106698207B (en) * 2017-01-13 2017-11-10 中铁十一局集团城市轨道工程有限公司 The construction method of shield machine is disassembled in hole
CN108086292A (en) * 2017-11-30 2018-05-29 中国二十冶集团有限公司 The control method of jacking construction after Reinforcement with Cement-mixed Piles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5221160A (en) * 1990-04-26 1993-06-22 Shimizuo Construction Co. Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor
CN102337897A (en) * 2011-06-21 2012-02-01 上海隧道工程股份有限公司 Shield integral type arrival receiving device and construction method employing same
CN102418530B (en) * 2011-12-14 2013-07-31 中铁十二局集团第二工程有限公司 Roller guide rail station-passing construction method of whole shield machine
CN102635365B (en) * 2012-05-06 2015-04-22 上海城建市政工程(集团)有限公司 Construction method for holing of shield machine
CN102635361B (en) * 2012-05-06 2014-04-30 上海城建市政工程(集团)有限公司 Construction method for holing and welling of shield machine

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