CN106437754A - Segmental lining ring and anchor cable combined structure and construction method thereof - Google Patents
Segmental lining ring and anchor cable combined structure and construction method thereof Download PDFInfo
- Publication number
- CN106437754A CN106437754A CN201610484939.9A CN201610484939A CN106437754A CN 106437754 A CN106437754 A CN 106437754A CN 201610484939 A CN201610484939 A CN 201610484939A CN 106437754 A CN106437754 A CN 106437754A
- Authority
- CN
- China
- Prior art keywords
- pipe
- anchor cable
- lining ring
- plate lining
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
Abstract
The invention provides a segmental lining ring and anchor cable combined structure and a construction method thereof. The segmental lining ring and anchor cable combined structure comprises a segmental lining ring arranged in surrounding rock. The segmental lining ring is formed by splicing a plurality of segmental blocks. The segmental lining ring and anchor cable combined structure is characterized in that a plurality of anchor cables are uniformly distributed on the inner wall of the segmental lining ring outwards, the two ends of the anchor cables are fixedly connected with the inner walls of the segmental blocks and the surrounding rock, and a gap exists between every two adjacent segmental blocks. According to the segmental lining ring and anchor cable combined structure and the construction method thereof, deformation of the surrounding rock is effectively controlled, and the integrity of a shield tunnel can be ensured.
Description
Technical field
The invention belongs to shield tunnel class, be specifically related to the combining structure of a kind of pipe-plate lining ring and anchor cable and execute
Work method.
Background technology
Pipe-plate lining ring is the structural shape that one is widely used in shield (TBM) tunnel, typically before tunnel piercing by
Batch production is prefabricated into pipe-plate lining block, assembled cyclization in shield machine, then releases shield tail, bears the various loads in tunnel.Pipe
Sheet built ring, under outside load action, can make to be in impaction state between each piece of hoop, under outside country rock effect of contraction, makes
Pipe-plate lining ring becomes the carrying structure of closed stablity.
From the active state of above-mentioned shield tunnel it can be seen that pipe-plate lining ring is a kind of rock-steady structure, tunnel is assembled into
After ring, rigidity is relatively big in early days, and the scope of suitable for surrounding rock deformation is less.Existing shield tunnel run into rock deformation bigger when place
Reason scheme is：Shield machine digs driving, the assembled cyclization of pipe-plate lining, and the space digging after lining cutting uses filler to fill, waits to serve as a contrast
After after building wall, void filler solidifies, the inwall in pipe-plate lining structure outwards arranges multiple anchor being radially arranged along its circumference
Bar, forms the combining structure of pipe-plate lining and anchor pole, specifically as shown in Figure 1.Its principle is：Looped pipe-plate lining will be closed
Cut into the tunnel segment structure of opening, be used for retraining the rockbolt stress of section of jurisdiction, and then suppression surrouding rock deformation during surrouding rock deformation, reach to release
Put the purpose of stratum extrusion stress, but in actual application, there is problems with：
Complete pipe-plate lining ring stiffness is bigger, it is allowed to deflection is very little, and the anchor pole only ability when moderate finite deformation occurs
Can play one's part to the full, therefore, existing technical scheme need looped for original closing pipe-plate lining is cut into hatch frame,
The raw moderate finite deformation of pipe-plate lining environment-development can be made to make anchor pole play a role, although later stage cast-in-place closed peristome position, but destroy former
There is the globality of Lining Ring, be unfavorable for the long-term operation security in tunnel.Especially since be provided without coagulation at section of jurisdiction opening
Before grave closes, tunnel segment structure is a untight structure, therefore cannot play the supporting power of section of jurisdiction itself, and only rely on anchor pole
Carry out surrounding rock supporting, it is impossible to fully demonstrate the original intention of anchor pole and the common stress of tunnel segment structure, it could even be possible to propping up because of anchor pole
Power of protecting is not enough, causes structure that overall collapsing occurs.
Content of the invention
The purpose of the present invention is aiming at the defect of prior art, provides the combination knot of a kind of pipe-plate lining ring and anchor cable
Structure, effective deformation controlling for rock surrounding gateways, can ensure that again the globality of shield tunnel.
The invention provides the combining structure of a kind of pipe-plate lining ring and anchor cable, including be arranged at the section of jurisdiction lining within country rock
Building ring, pipe-plate lining ring is spliced by multiple sections of jurisdiction block；It is characterized in that：Outwards equal at the inwall of described pipe-plate lining ring
The multiple anchor cable of even arrangement, described anchor cable two ends are fixing with section of jurisdiction block inwall and country rock respectively to be connected；Exist between adjacent tubes tile
Gap.
It is provided with, between described pipe-plate lining ring outer wall and country rock inwall, the discrete material layer that there is internal voids.
Described anchor pole is radially arranged along the circumference of pipe-plate lining structure.
It is prefabricated with anchor cable hole on the block of described section of jurisdiction.
One end of described anchor cable is connected by anchoring piece and section of jurisdiction block inwall are fixing.
Described discrete material layer uses beans stone.The particle size range of described beans stone is 5-10mm, and described beans stone is from pipe
Injected hole reserved on sheet built ring is blown into, and its beans footpath size should be easy to construction.
Described discrete material layer thickness meets the extrusion deformation degree of discrete material layer more than section of jurisdiction block in anchorage cable stretching power
Deflection outside under effect.
The invention provides the construction method of the combining structure of a kind of pipe-plate lining ring and anchor cable, it is characterised in that include with
Lower step：
Pipe-plate lining block assembly is prefabricated into pipe-plate lining ring by a. digging excavation shield tunnel；
B. pipe-plate lining ring releases shield tail with the propelling of shield machine, enters tunnel
C. the space owing to digging formation is filled by discrete material layer 6 after pipe-plate lining ring wall and between country rock；
D. inside tunnel at reserved anchor cable hole, along tunnel radially outward portion wall rock drill-hole construction anchor cable, and
Carry out stretch-draw in tunnel, then fixed by anchoring piece；
E. after country rock stratum deformation is stablized, to pipe-plate lining ring wall grouting behind shaft or drift lining, by the space backfill in discrete material layer
Closely knit.
Described step d also includes that stretch-draw anchor makes section of jurisdiction block expand outwardly, and the gaping of joints between the block hoop of section of jurisdiction increases
Arrive, can surrouding rock deformation prearrangement of deformation amount surplus, thus ensure the safety of tunnel lining structure.
The present invention does not needs to cut section of jurisdiction ring compared to existing technology and just can play a role, and utilizes the stretching of anchor cable to apply pretension
Power, can reinforce country rock, reduces rock deformation, realizes the expansion in gap between the block of section of jurisdiction simultaneously, reserved on the ring of section of jurisdiction
The space that country rock deforms further, provides space for later stage extruding, it is ensured that the globality of sheet built structure.Pipe-plate lining simultaneously
Being provided with the discrete material layer that there is space between ring and country rock, the deformation for country rock further provides space.The present invention is suitable for
In the big tunnel using pipe-plate lining of surrouding rock deformation, including subway tunnel, railway tunnel, vcehicular tunnel, Hydraulic Tunnel etc..
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is present configuration partial schematic diagram a；
Fig. 3 is present configuration partial schematic diagram b；
Wherein, 1 pipe-plate lining ring；2 country rocks；3 gaps；4 anchor cable holes；5 anchor cables；6 discrete material layers；
7 anchoring pieces, 8-section of jurisdiction block.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, it is simple to is well understood to this
Bright, but they do not constitute restriction to the present invention.
It as it is shown in figure 1, the invention provides the combining structure of a kind of pipe-plate lining ring and anchor cable, including is arranged at country rock 2
Internal pipe-plate lining ring 1, pipe-plate lining ring 1 is spliced by multiple sections of jurisdiction block 8；Pipe-plate lining ring 1 is the tunnel knot closed
Structure.The inwall of described pipe-plate lining ring 1 is outwards evenly arranged multiple anchor cable 5, described anchor cable 5 two ends respectively with in section of jurisdiction block 8
Wall and the fixing connection of country rock 2；Described anchor cable 5 passes through section of jurisdiction block 8 inside tunnel, and is anchored in country rock 2, enters in tunnel
Row anchor cable 5 stretch-draw.
As in figure 2 it is shown, there is gap 3 between described adjacent tubes tile 8.The stretching force of anchor cable 5 can be wanted according to control deformation
Ask and the seam joint open control between section of jurisdiction block 8 and block.It is provided with between described pipe-plate lining ring 1 outer wall and country rock 2 inwall
There is the discrete material layer 6 of internal voids.The outer shield of pipe-plate lining digs the space of formation, and to fill beans stone etc. kin
Material, its character is the compressible deformation of prose style free from parallelism state, and the closely knit rear intensity in space is higher.The particle size range of described beans stone is 5-
10mm.
Described anchor pole is radially arranged along the circumference of pipe-plate lining ring 1, is uniformly anchored in the country rock outside pipe-plate lining ring 1
In 2, it is ensured that uniformly transferring of country rock 2 and pipe-plate lining ring 1 stress.
It is prefabricated with anchor cable hole 4, it is simple to site operation on described section of jurisdiction block 8.One end of described anchor cable 5 by anchoring piece 7 with
Section of jurisdiction block 8 inwall is fixing to be connected, it is ensured that being stably connected with of anchor cable 5 and section of jurisdiction block 8.Described discrete material layer 6 thickness meets scattered
The extrusion deformation degree of body material layer 6 deflection outside under anchorage cable stretching power effect with section of jurisdiction block 8 is identical.
The stretch-draw pretension by anchor cable 5 for the present invention, makes to have between hoop section of jurisdiction block 8 certain gap 3, reaches anchor cable 5 section of jurisdiction
Structure suppression country rock 2 also reserves certain country rock 2 deformation space while deformation.After tunnel piercing excavation, segment assembly block 8 serves as a contrast
It is built into ring.Pipe-plate lining ring 1 releases shield tail with the propelling of shield machine, and beans can be filled in the space digging outside pipe-plate lining ring 1
The bigger discrete material in the spaces such as stone.Drilling construction anchor cable 5 in lateral country rock 2 stratum in pipe-plate lining ring 1, and in tunnel
Circumferentially radially carry out anchor cable 5 stretch-draw, and fixing inside lining cutting.The combination knot being formed by anchor cable 5 and pipe-plate lining ring 1
Structure, on the one hand reaches to reinforce country rock 2, reduces the purpose of country rock 2 deformation；Pass through radial tension anchor cable 5, hoop section of jurisdiction block 8 simultaneously
Expanding outwardly, the gap 3 between section of jurisdiction block 8 and block increases, and can also reserve deformation space for country rock 2 deformation, protect structure
Safety.According to country rock 2 deformation, can first reserve anchor cable hole 4 on tunnel segment structure, facilitate site operation.The employing present invention can
Need not cut section of jurisdiction ring, and anchor cable 5 can apply pretightning force, reinforce country rock 2, control country rock 2 deforms, and deforms for country rock 2 simultaneously
Pipe-plate lining ring 1, to having reserved deformation space, has reached control country rock 2 while deform, has protected pipe-plate lining structure.
The work progress of the present invention comprises the following steps：
1st, shield tunnel digging excavation, assembled prefabricated pipe-plate lining block cyclization, form shield tunnel segment lining ring knot
Structure.
2nd, pipe-plate lining ring 1 releases shield tail with the propelling of shield machine, owing to digging formation after pipe-plate lining ring 11 wall
Space filled by discrete material layer 6, the material of discrete material layer 6 can select the materials such as beans stone, and its character is prose style free from parallelism shape
The compressible deformation of state, the closely knit rear intensity in space is higher.
3rd, inside tunnel at reserved anchor cable hole 4s, the radially outward drilling construction anchor cable 5 along tunnel, and in tunnel
Inside carry out stretch-draw, then fixed by anchoring piece 7.By the stretch-draw of anchor cable 5, section of jurisdiction block 8 can be made to expand outwardly, section of jurisdiction block 8 ring
Gaping of joints 3 between to increases to d2 from d1, can deform prearrangement of deformation amount surplus for country rock 2, thus ensure tunnel lining structure
Safety.
4th, after country rock 2 stratum deformation is stablized, the space in discrete material layer 6 can be backfilled close by lining wall grouting behind shaft or drift lining
Real.
5th, after constructing tunnel completes, pretensioned anchor cable 5 one aspect can reinforce country rock 2, reduces country rock 2 and deforms, another
Aspect, when country rock 2 deforms further, can be reduced to d1 by the gaping of joints 3 between the hoop of section of jurisdiction from d2, is country rock 2
Deformation provides space, release stratum extrusion stress, reduces country rock 2 pressure acting on section of jurisdiction, it is ensured that tunnel-liner ring
The safety of structure.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (9)
1. pipe-plate lining ring and a combining structure for anchor cable, including be arranged at the internal pipe-plate lining ring (1) of country rock (2), manage
Sheet built ring (1) is spliced by multiple sections of jurisdiction block (8)；It is characterized in that：Outside at the inwall of described pipe-plate lining ring (1)
Being provided with and being evenly arranged multiple anchor cable (5), described anchor cable (5) two ends are fixing with section of jurisdiction block (8) inwall and country rock (2) respectively to be connected；
There is gap (3) between adjacent tubes tile (8)；It is provided with existence between described pipe-plate lining ring (1) outer wall and country rock (2) inwall
The discrete material layer (6) of internal voids.
2. the combining structure of pipe-plate lining ring according to claim 1 and anchor cable, it is characterised in that：Described anchor cable is along pipe
Sheet built ring (1) circumferencial direction is uniformly arranged；Described anchor cable is radially deep in country rock along the circumference of pipe-plate lining structure.
3. the combining structure of pipe-plate lining ring according to claim 1 and anchor cable, it is characterised in that：Described section of jurisdiction block (8)
On be prefabricated with anchor cable hole (4).
4. the combining structure of pipe-plate lining ring according to claim 1 and anchor cable, it is characterised in that：Described anchor cable (5)
One end is connected by anchoring piece (7) and section of jurisdiction block (8) inwall are fixing.
5. the combining structure of pipe-plate lining ring according to claim 1 and anchor cable, it is characterised in that：Described discrete material layer
(6) using beans stone, beans stone character is the compressible deformation of prose style free from parallelism state, and the closely knit rear intensity in space is higher.
6. the combining structure of pipe-plate lining ring according to claim 1 and anchor cable, it is characterised in that：Described discrete material
Layer (6) thickness ensures the change outside under anchorage cable stretching power effect more than section of jurisdiction block (8) of the extrusion deformation degree of discrete material layer (6)
Shape amount.
7. the pipe-plate lining structure of the step-down that sluices according to claim 5, it is characterised in that the particle diameter model of described beans stone
Enclose for 5-10mm.
8. the construction method of the combining structure of a pipe-plate lining ring and anchor cable, it is characterised in that comprise the following steps：
Pipe-plate lining block assembly is prefabricated into pipe-plate lining ring by a. digging excavation shield tunnel；
B. pipe-plate lining ring releases shield tail with the propelling of shield machine, enters tunnel；
C. the space owing to digging formation is filled by discrete material layer after pipe-plate lining ring wall and between country rock；
D. inside tunnel at reserved anchor cable hole, along tunnel radially outward portion wall rock drill-hole construction anchor cable, and in tunnel
Inside carry out stretch-draw, then fixed by anchoring piece；
E., after country rock stratum deformation is stablized, to pipe-plate lining ring wall grouting behind shaft or drift lining, the space in discrete material layer is backfilled closely knit.
9. the construction method of the combining structure of pipe-plate lining ring according to claim 8 and anchor cable, it is characterised in that step d
Also including that stretch-draw anchor makes section of jurisdiction block expand outwardly, the gaping of joints between the block hoop of section of jurisdiction increases to, and can surrouding rock deformation reserve
Distortion allowance, thus ensure the safety of tunnel lining structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484939.9A CN106437754B (en) | 2016-06-27 | 2016-06-27 | The composite structure and its construction method of pipe-plate lining ring and anchor cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484939.9A CN106437754B (en) | 2016-06-27 | 2016-06-27 | The composite structure and its construction method of pipe-plate lining ring and anchor cable |
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| CN106437754A true CN106437754A (en) | 2017-02-22 |
| CN106437754B CN106437754B (en) | 2019-12-03 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191210A (en) * | 2017-06-16 | 2017-09-22 | 中铁第勘察设计院集团有限公司 | Shield tunnel anti-floating system and its construction method based on prestress anchorage cable |
| CN108457668A (en) * | 2018-03-26 | 2018-08-28 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of double-shielded TBM joint liner supporting structure and its construction method |
| CN108457667A (en) * | 2018-03-07 | 2018-08-28 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of self-compacting concrete pipe-plate lining structure and its construction method |
| CN110645012A (en) * | 2019-11-11 | 2020-01-03 | 中铁工程装备集团有限公司 | Tunnel segment capable of deforming and releasing energy and using method thereof |
| CN110671125A (en) * | 2019-11-11 | 2020-01-10 | 中铁工程装备集团有限公司 | Anchor-support combined support system and construction method |
| CN111594199A (en) * | 2020-05-20 | 2020-08-28 | 中铁二局集团有限公司 | Construction method for wall back backfilling of double-shield TBM |
| CN111927476A (en) * | 2020-07-14 | 2020-11-13 | 中铁第四勘察设计院集团有限公司 | Method for constructing large-section tunnel by enlarging and digging shield tunnel by mining method |
| CN112664229A (en) * | 2021-01-25 | 2021-04-16 | 成都和拓土木工程有限公司 | Construction method for differential settlement of tunnel |
| CN113216988A (en) * | 2021-05-25 | 2021-08-06 | 中国矿业大学(北京) | Open type TBM construction supporting method for coal mine inclined shaft tunnel |
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| CN206267854U (en) * | 2016-06-27 | 2017-06-20 | 中铁第四勘察设计院集团有限公司 | The combining structure of pipe-plate lining ring and anchor cable |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191210A (en) * | 2017-06-16 | 2017-09-22 | 中铁第勘察设计院集团有限公司 | Shield tunnel anti-floating system and its construction method based on prestress anchorage cable |
| CN108457667A (en) * | 2018-03-07 | 2018-08-28 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of self-compacting concrete pipe-plate lining structure and its construction method |
| CN108457668A (en) * | 2018-03-26 | 2018-08-28 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of double-shielded TBM joint liner supporting structure and its construction method |
| CN108457668B (en) * | 2018-03-26 | 2019-10-18 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of double-shielded TBM joint liner supporting structure and its construction method |
| CN110645012A (en) * | 2019-11-11 | 2020-01-03 | 中铁工程装备集团有限公司 | Tunnel segment capable of deforming and releasing energy and using method thereof |
| CN110671125A (en) * | 2019-11-11 | 2020-01-10 | 中铁工程装备集团有限公司 | Anchor-support combined support system and construction method |
| CN111594199A (en) * | 2020-05-20 | 2020-08-28 | 中铁二局集团有限公司 | Construction method for wall back backfilling of double-shield TBM |
| CN111927476A (en) * | 2020-07-14 | 2020-11-13 | 中铁第四勘察设计院集团有限公司 | Method for constructing large-section tunnel by enlarging and digging shield tunnel by mining method |
| CN112664229A (en) * | 2021-01-25 | 2021-04-16 | 成都和拓土木工程有限公司 | Construction method for differential settlement of tunnel |
| CN113216988A (en) * | 2021-05-25 | 2021-08-06 | 中国矿业大学(北京) | Open type TBM construction supporting method for coal mine inclined shaft tunnel |
| CN113216988B (en) * | 2021-05-25 | 2022-04-01 | 中国矿业大学(北京) | Open type TBM construction supporting method for coal mine inclined shaft tunnel |
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