CN107740700A - A kind of novel subway tunnel fill-type liner structure - Google Patents

A kind of novel subway tunnel fill-type liner structure Download PDF

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Publication number
CN107740700A
CN107740700A CN201711022645.5A CN201711022645A CN107740700A CN 107740700 A CN107740700 A CN 107740700A CN 201711022645 A CN201711022645 A CN 201711022645A CN 107740700 A CN107740700 A CN 107740700A
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China
Prior art keywords
cloth
liner structure
permeable
subway tunnel
novel subway
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CN201711022645.5A
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Chinese (zh)
Inventor
张宝伟
吕连勋
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Individual
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Individual
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Priority to CN201711022645.5A priority Critical patent/CN107740700A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK 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
    • E21D11/107Reinforcing elements therefor; Holders for the reinforcing elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention discloses a kind of novel subway tunnel fill-type liner structure, including overall cylindrical outer layer cloth bag, cloth bag is internally provided with the framework of steel reinforcement of radial direction lacing wire and ring construction muscle composition;Outer layer cloth bag is formed by the lateral sealing cloth sewing at the permeable cloth in inner side, outside antiseepage cloth and both ends, the permeable cloth in inner side and the reserved bolthole being provided with outside antiseepage cloth inside and outside some connect, and grouting port and extravasating hole are provided with the lateral sealing cloth of one end;Grouting port is arranged at the bottom of liner structure, and extravasating hole is arranged at the top of liner structure;Radial direction lacing wire and ring construction muscle use finer wire respectively together with cloth permeable with inner side and outside antiseepage cloth colligation using being connected by the way of welding, and in both connecting portions.The present invention directly fills grouting using grouting equipment and forms continuous liner structure, and structural shape is simple, easy for construction, can improve the consolidation effect on weak broken stratum, improves the bearing capacity of Supporting System for Metro Tunnel.

Description

A kind of novel subway tunnel fill-type liner structure
Technical field
The present invention relates to bored tunnel technical field of construction, more particularly to a kind of novel subway tunnel fill-type lining cutting knot Structure, it is mainly used in its support reinforcement of metro tunnel excavation under weak broken formation condition.
Background technology
With flourishing for national basis Facilities Construction, increasing Metro Engineering Project is built, manyly Have no alternative but build on the bad stratum of the geological conditions such as backfill, weak soil, broken formation in iron tunnel.This kind of stratum bearing capacity It is all very low with shearing strength, and deformed after being disturbed it is larger, on this kind of stratum carry out subway construction easily trigger it is larger Differential settlement.In addition, the props such as creep or Rheological Deformation, lining cutting can be produced after lining cutting is under confined pressure effect after constructing tunnel Large deformation and unstability easily occur for system.At present, the serious deformation problem under weak broken formation condition, to metro tunnel excavation Reinforced Supporting Technology bring great challenge, seriously constrain safety, the high speed development of subway construction industry.
Before making the present invention, the Invention Announce of Patent No. 201510101208.7 it is a kind of have never remove lining cutting wheel The tunnel lining structure and its construction installation method of tire.Its main body is lining cutting tire and steel arch-shelf, determines lining cutting tire installation position Put and tire shape after, pressure caused by surrouding rock deformation is uniformly passed to steel arch using the suppleness of air and rubber Frame, the requirement of sectional shape area and intensity is reduced to a certain extent, avoid the local failure of steel arch-shelf.But the lining The cardinal principle for building structure is to play itself support capacity using country rock, by the elastomeric property of the lining cutting tire contacted with country rock Appropriate deformation occurs for power to discharge confined pressure, when using this method under the conditions of the weak broken formation of dead-soft, still easily deforms and is difficult to Control and cause the possibility of supporting construction overall collapse.
A kind of shield tunnel liner glass fibre reinforced concrete pipe of Application No. 201710603754.X Invention Announce Piece and preparation method.It includes concrete and glass fiber-reinforced polymer cage, and concrete, concrete surface have been poured in glass fiber-reinforced polymer cage Connecting hole and hole for hoist are provided with, intensity of the present invention is high, in light weight, cost is low, antioxygen is corrosion-resistant, improves pipe to a certain extent Piece service life, accelerate the construction speed in tunnel.But the liner structure has its specificity, is only applicable to shield tunnel Precast assembly, the problems such as difficulty of construction is big, transport is inconvenient is had when constructing and use for bored tunnel, and manual operation is constructed Precision does not reach requirement.
It is therefore desirable to explore a kind of its support reinforcement effect that both can guarantee that weak broken stratum, again have convenient transportation, The novel subway tunnel-liner pattern of easy construction.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are:A kind of structural shape letter is provided It is single, easy for construction, consolidation effect and the excellent novel subway tunnel lining structure of bearing capacity, so as to preferably improve soft The consolidation effect of weak broken formation, the bearing capacity for improving Supporting System for Metro Tunnel.
A kind of novel subway tunnel fill-type liner structure, including overall cylindrical outer layer cloth bag, set inside cloth bag It is equipped with the framework of steel reinforcement of radial direction lacing wire and ring construction muscle composition;Characterized in that, the outer layer cloth bag is by the permeable cloth in inner side, outer Side antiseepage cloth and the lateral sealing cloth at both ends sewing forms, the permeable cloth in inner side be provided with outside antiseepage cloth inside and outside some connect Reserved bolthole, be provided with grouting port and extravasating hole on the lateral sealing cloth of one end;The radial direction lacing wire and ring construction muscle It is connected by the way of welding, and finer wire cloth permeable with inner side and outside antiseepage respectively is used in both connecting portions Cloth colligation is together.
A kind of novel subway tunnel fill-type liner structure of the present invention, is provided with grouting port and extravasating hole, during construction, leans on Grouting port connection grouting equipment directly carries out cementing operations, and disposable quick grouting forms tunnel-liner in place, reduces construction Process, while avoid and perturbation action is occurred using modes such as shotcrete with steel bar nets, the defects of preventing surrounding formations intensity from drastically declining, Improve consolidation effect.
As optimization, the lateral sealing cloth is located at the lateral envelope of the both side ends, wherein one end of fill-type liner structure Grouting port and extravasating hole are provided with mouth cloth, the lateral sealing cloth of the other end is not provided with perforate.So, from side during convenient construction End is carried out, and can farthest reduce operation interval.
As optimization, the permeable cloth in inner side uses the PFY geotextiles of superior permeability, outside antiseepage cloth and side The preferable high-strength polyethylene composite impermeable membrane of barrier performance is used to sealing cloth.So, ensure during cementing operations in slurries Water all oozed out from the one side of the permeable cloth in inner side, prevent the outer lateral seepage of lining cutting from producing reduction to the stratum of tunnel perimeter.
As optimization, the grouting port is arranged at the bottom of liner structure, and extravasating hole is arranged at the top of liner structure.This Sample, ensure reperfusion serosity during from the bottom up gradually it is closely knit, slurries fill after from top extravasating hole overflow, prevent spillage Phenomena such as with perfusion leakiness.
As optimization, the grouting port uses plastic material, and one end is fixed together with lateral sealing cloth, the other end Provided with screw thread.So, facilitate grouting equipment to be directly connected with grouting port, cementing operations are carried out, without other interface equipments.
8 radial direction lacing wires and 2 rings construction muscle are set altogether as optimization, on same section, the radial direction on identical section Lacing wire and ring construction muscle are welded into an entirety, and using bond pad locations as colligation node, using finer wire by reinforcing bar with it is interior The permeable cloth in side and the colligation of outside antiseepage cloth difference are together.So, the reinforcing bar of inside can be connected as one with outer layer cloth bag It is overall, play a part of tightening up during slip casting, the phenomenon for preventing differential expansion or excessively expanding.
As optimization, the center for the Rectangular grid that the reserved bolthole is formed located at 4 adjacent colligation nodes. So, it is possible to reduce damage when support anchor rod is constructed to reinforcing bar and colligation node, in addition, center filling concrete is more Thickness, support anchor rod promote stress distribution more reasonable after the completion of setting.
As optimization, the diameter of the reserved bolthole should exceed 3 times of selected support anchor rod diameter.So, can be to prevent Bolthole is only reserved during slip casting and extrudes disappearance completely because of slurry dilatancy phenomenon.
As optimization, the support anchor rod, which should be molded in fill-type liner structure and fill concrete, reaches more than 85% by force Constructed after degree.So, it can prevent that liner structure is caused to damage when support anchor rod from constructing, reduce the bearing capacity of lining cutting.
As optimization, the support anchor rod should use quincunx laying, be adopted in the reserved bolthole of each supporting section Mode is beaten with every a dozen one jumps.So, support anchor rod can be made to be misplaced two-way, be more beneficial for Multi anchorage effect and rationally Stress.
As optimization, the filling concrete should use fines concrete.So, can prevent due to the sand in concrete Stone particle diameter is excessive to there is phenomenon that is uneven, and effectively preventing big particle diameter stone from scratching outer layer cloth bag of being in the milk.
A kind of novel subway tunnel fill-type liner structure of the present invention has effect following prominent:
(1)The present invention uses the structure of outer layer cloth bag connecting inner framework of steel reinforcement, can use prefabrication, can be light before grouting construction Foldable, adjustment position, convenience in transport;
(2)It is of the invention internal completely through, directly filled using grouting equipment grouting formed it is continuous overall, liner structure shaping and Reach after more than 85% intensity construction supporting anchor pole again, avoid traditional construction mode and easily cause asking for weak broken ground disturbance Topic;
(3)Structural shape of the present invention is simple, and concrete shape and size can carry out change and prefabricated, consolidation effect according to design condition It is excellent with bearing capacity, it can adapt to the consolidation process of all kinds of soft layer Metro Tunnels.
Therefore in summary, the present invention has that structural shape is simple, easy for construction, consolidation effect and good excellent of bearing capacity Point, it can preferably improve the consolidation effect on weak broken stratum, improve the bearing capacity of Supporting System for Metro Tunnel.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of novel subway tunnel fill-type liner structure of the present invention;
Fig. 2 is the schematic cross-sectional view of the present invention.
Marginal data:1- extravasating holes;Permeable cloth on the inside of 2-;3- laterally seals cloth;4- grouting ports;Antiseepage cloth on the outside of 5-;6- Support anchor rod;7- reserves bolthole;8- colligation nodes;9- fills concrete;10- rings construct muscle;11- radial direction lacing wires.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, a kind of novel subway tunnel fill-type liner structure, including overall cylindrical outer cloth Bag, the framework of steel reinforcement that cloth bag is internally provided with radial direction lacing wire 11 and ring construction muscle 10 forms;Characterized in that, the outer cloth Bag is sewed and formed by the permeable cloth 2 in inner side, outside antiseepage cloth 5 and the lateral sealing cloth 3 at both ends, the permeable cloth 2 in inner side and outside antiseepage The reserved bolthole 7 being provided with cloth 5 inside and outside some connections, grouting port 4 and extravasating hole are provided with the lateral sealing cloth 3 of one end 1;The radial direction lacing wire 11 is connected with ring construction muscle 10 by the way of welding, and in both connecting portions using thin Steel wire together with cloth 2 and outside antiseepage cloth 5 colligation permeable with inner side, forms colligation node 8 respectively.
Wherein, the lateral sealing cloth 3 is located at the lateral sealing cloth of the both side ends, wherein one end of fill-type liner structure Grouting port 4 and extravasating hole 1 are provided with 3, the lateral sealing cloth 3 of the other end is not provided with perforate.So, from side during convenient construction End is carried out, and can farthest reduce operation interval.
Wherein, the permeable cloth 2 in the inner side is using the PFY geotextiles of superior permeability, outside antiseepage cloth 5 and lateral Sealing cloth 3 uses the preferable high-strength polyethylene composite impermeable membrane of barrier performance.So, ensure during cementing operations in slurries Water all oozes out from the one side of the permeable cloth 2 in inner side, prevents the outer lateral seepage of lining cutting from producing reduction to the stratum of tunnel perimeter.
Wherein, the grouting port 4 is arranged at the bottom of liner structure, and extravasating hole 1 is arranged at the top of liner structure.This Sample, ensure reperfusion serosity during from the bottom up gradually it is closely knit, slurries fill after from top extravasating hole overflow, prevent spillage Phenomena such as with perfusion leakiness.
Wherein, the grouting port 4 uses plastic material, and one end is fixed together with lateral sealing cloth 3, and the other end is set There is screw thread.So, facilitate grouting equipment to be directly connected with grouting port 4, cementing operations are carried out, without other interface equipments.
Wherein, 8 radial direction lacing wires 11 and 2 rings construction muscle 10 are set altogether on same section, the radial direction on identical section Lacing wire 11 and ring construction muscle 10 are welded into an entirety, and using bond pad locations as colligation node 8, using finer wire by reinforcing bar Together with cloth 2 and outside antiseepage cloth 5 difference colligation permeable with inner side.So, the reinforcing bar of inside can be connected with outer layer cloth bag For an entirety, play a part of tightening up during slip casting, the phenomenon for preventing differential expansion or excessively expanding.
Wherein, the center for the Rectangular grid that the reserved bolthole 7 is formed located at 4 adjacent colligation nodes 8.This Sample, it is possible to reduce damage when support anchor rod 6 is constructed to reinforcing bar and colligation node 8, in addition, center filling concrete 9 is more Thickness, support anchor rod 6 promote stress distribution more reasonable after the completion of setting.
Wherein, the diameter of the reserved bolthole 7 should be more than 3 times of the selected diameter of support anchor rod 6.So, can prevent Bolthole 7 is reserved during slip casting and extrudes disappearance completely because of slurry dilatancy phenomenon.
Wherein, the support anchor rod 6, which should be molded in fill-type liner structure and fill concrete eight, reaches more than 85% intensity After construct.So, liner structure is caused to damage when can prevent support anchor rod 6 from constructing, reduces the bearing capacity of lining cutting.
Wherein, the support anchor rod 6 should use quincunx laying, be used in the reserved bolthole 7 of each supporting section Mode is beaten every a dozen one jumps.So, support anchor rod 6 can be made to be misplaced two-way, be more beneficial for Multi anchorage effect and rationally Stress.
Wherein, the filling concrete 9 should use fines concrete.So, can prevent due to the sandstone in concrete Particle diameter is excessive to there is phenomenon that is uneven, and effectively preventing big particle diameter stone from scratching outer layer cloth bag of being in the milk.
A kind of novel subway tunnel fill-type liner structure of the present invention, is provided with grouting port 4 and extravasating hole 1, during construction, Grouting equipment is connected by grouting port 4 and directly carries out cementing operations, and disposable quick grouting forms tunnel-liner, liner structure in place It is molded and reaches after more than 85% intensity construction supporting anchor pole 6 again.

Claims (6)

1. a kind of novel subway tunnel fill-type liner structure, including overall cylindrical outer layer cloth bag, cloth bag inside are set The framework of steel reinforcement being made up of radial direction lacing wire and ring construction muscle;Characterized in that, the outer layer cloth bag is by the permeable cloth in inner side, outside Antiseepage cloth and the lateral sealing cloth at both ends sewing forms, the permeable cloth in inner side be provided with outside antiseepage cloth inside and outside some connect Bolthole is reserved, grouting port and extravasating hole are provided with the lateral sealing cloth of one end;The radial direction lacing wire and ring construction muscle are adopted It is connected with the mode of welding, and finer wire cloth permeable with inner side and outside antiseepage cloth respectively is used in both connecting portions Colligation is together.
2. a kind of novel subway tunnel fill-type liner structure as claimed in claim 1, it is characterised in that the inner side is permeable Cloth uses the PFY geotextiles of superior permeability, and outside antiseepage cloth and lateral sealing cloth are preferably poly- using barrier performance Ethene composite impermeable membrane.
3. a kind of novel subway tunnel fill-type liner structure as claimed in claim 1, it is characterised in that the grouting port is set The bottom of liner structure is placed in, extravasating hole is arranged at the top of liner structure.
4. a kind of novel subway tunnel fill-type liner structure as claimed in claim 1, it is characterised in that the grouting port is adopted With plastic material, one end is fixed together with lateral sealing cloth, and the other end is provided with screw thread.
A kind of 5. novel subway tunnel fill-type liner structure as claimed in claim 1, it is characterised in that the reserved anchor pole The center for the Rectangular grid that hole is formed located at 4 adjacent colligation nodes.
A kind of 6. novel subway tunnel fill-type liner structure as claimed in claim 1, it is characterised in that the reserved anchor pole The diameter in hole exceedes 3 times of selected support anchor rod diameter.
CN201711022645.5A 2017-10-26 2017-10-26 A kind of novel subway tunnel fill-type liner structure Pending CN107740700A (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN109184734A (en) * 2018-10-22 2019-01-11 山东建筑大学 A kind of assembled protective case liner structure for the rectangle underground space and apply method
CN109184737A (en) * 2018-09-30 2019-01-11 山东建筑大学 The tunnel prestressing force constraint of pressure energy-absorbing can be allowed to fill liner supporting system and technique
CN110821514A (en) * 2019-09-30 2020-02-21 中铁隧道局集团建设有限公司 Construction method of assembled primary support structure of tunnel in water-rich area
CN112796782A (en) * 2021-03-16 2021-05-14 中国人民解放军军事科学院国防工程研究院工程防护研究所 Buffering energy-absorbing cloth bag beam capable of resisting large deformation of soft rock in underground engineering
CN113137242A (en) * 2021-03-16 2021-07-20 中国人民解放军军事科学院国防工程研究院工程防护研究所 Assembled combined supporting structure for deep underground space tunnel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08193497A (en) * 1995-01-19 1996-07-30 Nippon Kokan Light Steel Kk Segment having bag
CN101144386A (en) * 2007-11-01 2008-03-19 王晓利 Disposable flexible template device and construction method thereof
CN101493012A (en) * 2009-02-12 2009-07-29 王晓利 Combined support system of flexible film barrel, rigid support and concrete and construction method
CN201517419U (en) * 2009-09-30 2010-06-30 王晓利 One-time bendable template device for pouring double-layer concrete skewback of underground engineering
CN105298514A (en) * 2015-11-26 2016-02-03 山东科技大学 Cast-in-place continuous concrete support and installation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08193497A (en) * 1995-01-19 1996-07-30 Nippon Kokan Light Steel Kk Segment having bag
CN101144386A (en) * 2007-11-01 2008-03-19 王晓利 Disposable flexible template device and construction method thereof
CN101493012A (en) * 2009-02-12 2009-07-29 王晓利 Combined support system of flexible film barrel, rigid support and concrete and construction method
CN201517419U (en) * 2009-09-30 2010-06-30 王晓利 One-time bendable template device for pouring double-layer concrete skewback of underground engineering
CN105298514A (en) * 2015-11-26 2016-02-03 山东科技大学 Cast-in-place continuous concrete support and installation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN109184737A (en) * 2018-09-30 2019-01-11 山东建筑大学 The tunnel prestressing force constraint of pressure energy-absorbing can be allowed to fill liner supporting system and technique
CN109184737B (en) * 2018-09-30 2023-11-03 山东建筑大学 Tunnel prestress constraint filling lining support system capable of yielding and absorbing energy and process
CN109184734A (en) * 2018-10-22 2019-01-11 山东建筑大学 A kind of assembled protective case liner structure for the rectangle underground space and apply method
CN109184734B (en) * 2018-10-22 2023-12-29 山东建筑大学 Assembled protective shell lining structure for rectangular underground space and construction method
CN110821514A (en) * 2019-09-30 2020-02-21 中铁隧道局集团建设有限公司 Construction method of assembled primary support structure of tunnel in water-rich area
CN112796782A (en) * 2021-03-16 2021-05-14 中国人民解放军军事科学院国防工程研究院工程防护研究所 Buffering energy-absorbing cloth bag beam capable of resisting large deformation of soft rock in underground engineering
CN113137242A (en) * 2021-03-16 2021-07-20 中国人民解放军军事科学院国防工程研究院工程防护研究所 Assembled combined supporting structure for deep underground space tunnel

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