CN102889085A - Tunneling construction method for shield tunneling machine - Google Patents
Tunneling construction method for shield tunneling machine Download PDFInfo
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- CN102889085A CN102889085A CN2012103867762A CN201210386776A CN102889085A CN 102889085 A CN102889085 A CN 102889085A CN 2012103867762 A CN2012103867762 A CN 2012103867762A CN 201210386776 A CN201210386776 A CN 201210386776A CN 102889085 A CN102889085 A CN 102889085A
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- shield machine
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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
Technical field
The invention belongs to underground engineering field, be specifically related to the job practices that a kind of shield machine enters the hole.
Background technology
When set of tunneling construction, the shield structure generally is to be advanced into another active well from an active well, and shield machine passes the hole to be provided circle from active well and enters soil layer, is shield machine and appears, from soil layer, enter again another and reserve active well, be shield machine and enter the hole.Usually when shield machine enters the hole, seal up a door and be removed, if shield driving area soil property is relatively poor or sand factor is higher, then the outer soil body of well is not able to support oneself, and the sealing device of hole circle can't stop the soil body outside the hole in the well, so the soil body enters in the well outside the hole thereupon, cause land subsidence or water burst to leak husky, the safe handling of underground utilities and above ground structure is serious such as situation near the impact, then causes the down-hole to construct.
In order to ensure the safety of underground existing pipeline and the normal construction of down-hole, usually advance advance line pipe line resettlement and to carrying out ground stabilization and soil stabilization is processed in the end well outside, such 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 is expensive.
Chinese patent " 200810042556.1 " discloses a kind of shield receiving system and start tunneling method thereof, sealing arranges a cavity to this start tunneling method at tunnel mouth place, the upper cover plate of this cavity can outwards turn down, simulate simultaneously the soil pressure environment at tunnel mouth place by filled with water in cavity and mud, the phenomenons such as water burst leakage sand occur in tunnel mouth place when entering cavity in order to avoid shield machine tunnels forward.But the drawback of this scheme in Specific construction also is apparent, and a large amount of mud is sent in the cavity, and after construction is finished a large amount of mud to be discharged be a great engineering, not only wastes time and energy but also makes the 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 the hole but also can guarantee that the hole soil body can support oneself, prevent the job practices that the soil body when shield machine enters the hole runs off.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part, provide a kind of shield machine to advance the job practices in hole, this job practices is by arranging an open-ended cavity at tunnel mouth place, be provided with oil cylinder in the described cavity, 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 giving birth to into the water burst leakage sofa at place, hole so that shield machine can enter the hole smoothly.
The object of the invention realizes being finished by following technical scheme:
A kind of shield machine advances the job practices in hole, the shield machine that this job practices is specifically related to tunnel, active well and works in described tunnel, it is characterized in that 1. described method comprises the steps: at least before described shield machine enters the hole, at 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 advance the hole receiving system, described shield machine advances the 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 the oil cylinder framework, at least be fixed with two oil cylinders on the described oil cylinder framework, 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 the wherein said oil cylinder is stretched to the range state; 3. subsequently in described active well relatively the borehole wall of tunnel set up a rear seat in order to the fixing described oil cylinder framework that is arranged in the cavity; 4. start described shield machine and tunnel forward, the cutterhead of shield machine withstands the described top board of being close to the borehole wall and also at the uniform velocity travels forward, until described shield machine leaves described tunnel fully; The pressure of wherein said oil cylinder equals described shield machine and acts on pressure on the top board; 5. finish out the structure construction at hole; 6. remove the shield machine that 2. step arrange and advance the hole receiving system.
Between described cavity and the described active well borehole wall seal washer is installed.
Be provided with at least two blocks on the described top board, 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 the axiality cushion block, can horizontal rectilinear motion in order to guarantee described shield machine.
The length of described cavity is at least 1/3 of shield machine length.
Described shield machine is provided with the operation slideway between described cavity and the rear seat so that can continue to slide after going out cavity.
After the piston rod on the described oil cylinder is compressed to the 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 the range state backward, and again the 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 fully.
Advantage of the present invention is that it is high that shield machine advances the hole safety factor, can guarantee that the hole soil body water burst can not occur leaks husky phenomenon; Job practices is easy, and required construction equipment is simple in structure fast, and convenient the manufacturing transported; The clean and tidy health in job site.
Description of drawings
Fig. 1 is that shield machine advances structure of the window schematic diagram before the hole among the present invention;
Fig. 2 is arranged among the present invention to advance hole receiving system schematic diagram into hole place;
Fig. 3 is that shield machine advances the hole schematic diagram among the present invention;
Fig. 4 is the block distribution schematic diagram that is arranged among the present invention on the top board;
Fig. 5 is arranged among the present invention preferably to advance hole receiving system schematic diagram into hole place;
Fig. 6 is that shield machine advances the schematic diagram of hole when preferably advancing on the receiving system of hole among the present invention;
Fig. 7 is the schematic diagram of shield machine on the operation slideway among the present invention.
The specific embodiment
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:
Such as Fig. 1-7, mark 1-22 is respectively among the figure: active well 1, seal up a door 2, the borehole wall 3, cutterhead 4, tunnel 5, shield machine 6, front end ridge 7, advance 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 one: shown in Fig. 1-4, the present embodiment is the job practices that a kind of shield machine that belongs to underground engineering field enters the hole, the shield machine 6 that is specifically related to active well 1, tunnel 5 and in tunnel 5, works, the realization of this job practices is specifically finished by following steps:
1. when shield machine 6 foremost close to seal up a door the time stop propelling construction, 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 12 of both ends open is erected on the base 18 in the 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; The 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 fully by cavity 12;
3. in cavity 12, set up thereafter oil cylinder framework 10, be fixed with four oil cylinders 11 on the oil cylinder framework 10, 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 the hole near the borehole wall 3; Owing to having front end ridge 7 on the cutterhead 4 of shield machine 6, therefore in order to increase the contact area of top board 16 and shield machine 6, four blocks 15 are set evenly 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 the cutterhead 4;
4. after oil cylinder framework 10 installs, for guarantee that oil cylinder framework 10 maintains static when being advanced the top pressure by shield machine 6, the borehole wall 9 in active well 1 arranges a rear seat 20, the support bar 19 that stretches out on the rear seat 20 is bolted on the oil cylinder framework 10, with thinking that oil cylinder framework 10 provides counter-force to support;
5. starting shield machine 6 tunnels forward, cutterhead 4 on the shield machine 6 withstands the described top board 16 of being close on the borehole wall 3 and also at the uniform velocity pushes ahead, the pressure of oil cylinder 11 equaled shield machine 6 and acted on pressure on the top board 16 this moment, prevented that in order to simulate a pressure that advances 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 the cavity 12 until sail out of tunnel 5 fully, and this moment, shield machine 6 was finished into the hole operation; Quit work, by goliath cavity 12 is together hung together with shield machine 6.
Embodiment two: shown in Fig. 1,4,5,6,7, the present embodiment is preferred version of the present invention, be that with the difference of embodiment one length of cavity 12 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 foremost close to seal up a door the time stop propelling construction, 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 12 of both ends open is erected on the base 18 in the 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; The 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;
Therefore 3. because cavity 12 length are shorter, connect operation slideway 21 behind cavity 12, described slideway 21 is specially semicircle slideway, its with the contact surface of shield machine 6 on evenly lay some pulleys 22, with convenient thereafter shield machine 6 in the propelling that moves on the slideway 21;
4. set up oil cylinder framework 10 at operation slideway 21 thereafter, be fixed with four oil cylinders 11 on the oil cylinder framework 10, 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 the hole near the borehole wall 3; Owing to having front end ridge 7 on the cutterhead 4 of shield machine 6, therefore in order to increase the contact area of top board 16 and shield machine 6, four blocks 15 are set evenly 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 the cutterhead 4;
5. after oil cylinder framework 10 installs, for guarantee that oil cylinder framework 10 maintains static when being advanced the top pressure by shield machine 6, the borehole wall 9 in active well 1 arranges a rear seat 20, the support bar 19 that stretches out on the rear seat 20 is bolted on the oil cylinder framework 10, with thinking that oil cylinder framework 10 provides counter-force to support; Wherein said support bar 19 is detachably changed, so the visual Specific construction of the length of support bar 19 requires and changes;
6. starting shield machine 6 tunnels forward, cutterhead 4 on the shield machine 6 withstands the described top board 16 of being close on the borehole wall 3 and also at the uniform velocity pushes ahead, the pressure of oil cylinder 11 equaled shield machine 6 and acted on pressure on the top board 16 this moment, prevented that in order to simulate a pressure that advances hole 8 place's soil bodys the soil body from caving in; Shield machine 6 continues at the uniform velocity to advance forward, when 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, direction Shift cylinder framework 10 to the borehole wall 9, so that piston rod 17 is stretched to range again, and changes shorter 19 pairs of oil cylinder frameworks 10 of support bar and retighten; Again start shield machine 6 and at the uniform velocity advance forward, and so forth, until sail out of fully tunnel 5 enter in the cavity 12 and operation slideway 21 on, this moment, shield machine 6 was finished into the hole operation; Quit work, by goliath shield machine 6 is hung the job site.
In sum, demand and the equipment situation different according to the job site, the constructor can freely select length length or shorter cavity 12, and constructs according to the step among embodiment one or the embodiment two.
Claims (7)
1. a shield machine advances the job practices in hole, the shield machine that this job practices is specifically related to tunnel, active well and works in described tunnel, it is characterized in that 1. described method comprises the steps: at least before described shield machine enters the hole, at 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 advance the hole receiving system, described shield machine advances the 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 the oil cylinder framework, at least be fixed with two oil cylinders on the described oil cylinder framework, 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 the wherein said oil cylinder is stretched to the range state; 3. subsequently in described active well relatively the borehole wall of tunnel set up a rear seat in order to the fixing described oil cylinder framework that is arranged in the cavity; 4. start described shield machine and tunnel forward, the cutterhead of shield machine withstands the described top board of being close to the borehole wall and also at the uniform velocity travels forward, until described shield machine leaves described tunnel fully; The pressure of wherein said oil cylinder equals described shield machine and acts on pressure on the top board; 5. finish out the structure construction at hole; 6. remove the shield machine that 2. step arrange and advance the hole receiving system.
2. a kind of shield machine according to claim 1 advances the job practices in hole, it is characterized in that between described cavity and the described active well borehole wall seal washer being installed.
3. a kind of shield machine according to claim 1 advances the job practices in hole, it is characterized in that being provided with on the described top board at least two blocks, 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 advances the job practices in hole, it is characterized in that the gap location between described cavity and the active well borehole wall is provided with the axiality cushion block, can horizontal rectilinear motion in order to guarantee described shield machine.
5. a kind of shield machine according to claim 1 advances the job practices 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 advances the job practices in hole, it is characterized in that being provided with between described cavity and the rear seat operation slideway so that described shield machine can continue to slide after going out cavity.
7. a kind of shield machine advances the job practices in hole according to claim 1 or 5, it is characterized in that after the piston rod on the described oil cylinder is compressed to the 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 the range state backward, and again the 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 fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210386776.2A CN102889085B (en) | 2012-10-14 | 2012-10-14 | Tunneling construction method for shield tunneling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210386776.2A CN102889085B (en) | 2012-10-14 | 2012-10-14 | Tunneling construction method for shield tunneling machine |
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| CN102889085A true CN102889085A (en) | 2013-01-23 |
| CN102889085B CN102889085B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210386776.2A Active CN102889085B (en) | 2012-10-14 | 2012-10-14 | Tunneling construction method for shield tunneling machine |
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Cited By (6)
| 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 |
| CN103352704A (en) * | 2013-07-29 | 2013-10-16 | 北京住总集团有限责任公司 | Construction method for enabling tunnel shield to pass through vertical shaft structure |
| CN106223963A (en) * | 2016-08-05 | 2016-12-14 | 中国水利水电第十四工程局有限公司 | A kind of shield machine air pushing construction method by subsurface excavation method tunnel |
| CN106401594A (en) * | 2016-07-26 | 2017-02-15 | 福建工程学院 | Arrangement method of tools on composite cutterhead of shield tunneling machine |
| CN106698207A (en) * | 2017-01-13 | 2017-05-24 | 中铁十局集团城市轨道工程有限公司 | Construction method for dismounting shield tunneling machine in tunnel |
| 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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| 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 |
| CN102418530A (en) * | 2011-12-14 | 2012-04-18 | 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 |
| CN102635365A (en) * | 2012-05-06 | 2012-08-15 | 上海城建市政工程（集团）有限公司 | Construction method for holing of shield machine |
| CN102635361A (en) * | 2012-05-06 | 2012-08-15 | 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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Patent Citations (5)
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| 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 |
| CN102418530A (en) * | 2011-12-14 | 2012-04-18 | 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 |
| CN102635365A (en) * | 2012-05-06 | 2012-08-15 | 上海城建市政工程（集团）有限公司 | Construction method for holing of shield machine |
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Cited By (8)
| 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 |
| CN103352704A (en) * | 2013-07-29 | 2013-10-16 | 北京住总集团有限责任公司 | Construction method for enabling tunnel shield to pass through vertical shaft structure |
| 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 |
| CN106401594A (en) * | 2016-07-26 | 2017-02-15 | 福建工程学院 | Arrangement method of tools on composite cutterhead of shield tunneling machine |
| 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 |
| CN106223963A (en) * | 2016-08-05 | 2016-12-14 | 中国水利水电第十四工程局有限公司 | A kind of shield machine air pushing construction method by subsurface excavation method tunnel |
| CN106698207A (en) * | 2017-01-13 | 2017-05-24 | 中铁十局集团城市轨道工程有限公司 | Construction method for dismounting shield tunneling machine in tunnel |
| 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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| CN102889085B (en) | 2014-09-03 |
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