CN108756933A - A kind of bellows-type quick connecting method of double layer tunnel inside prefabricated components - Google Patents

A kind of bellows-type quick connecting method of double layer tunnel inside prefabricated components Download PDF

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Publication number
CN108756933A
CN108756933A CN201810393940.XA CN201810393940A CN108756933A CN 108756933 A CN108756933 A CN 108756933A CN 201810393940 A CN201810393940 A CN 201810393940A CN 108756933 A CN108756933 A CN 108756933A
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CN
China
Prior art keywords
prefabricated post
bellows
prefabricated
metal bellows
double layer
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CN201810393940.XA
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Chinese (zh)
Inventor
禹海涛
李龙津
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Tongji University
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Tongji University
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Priority to CN201810393940.XA priority Critical patent/CN108756933A/en
Publication of CN108756933A publication Critical patent/CN108756933A/en
Pending legal-status Critical Current

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    • 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
    • E21D11/08Lining with building materials with preformed concrete slabs
    • E21D11/083Methods or devices for joining adjacent concrete segments

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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 present invention relates to a kind of bellows-type quick connecting methods of prefabricated components inside double layer tunnel, this method is to pour arcuate base (7) in advance on the section of jurisdiction (8) of double layer tunnel, it is embedded with metal bellows (4) in the arcuate base (7), prefabricated post (1) is set in arcuate base (7), there is prefabricated post to connect reinforcing bar (2) in the prefabricated post (1), prefabricated post connects reinforcing bar (2) and is stretched out from prefabricated post (1) bottom, it is inserted into metal bellows (4) pre-buried in arcuate base (7), finally, the injection grouting material (3) inside metal bellows (4).Compared with prior art, prefabricated post prefabrication of the present invention, standardized production is quality controllable, and non-environmental-pollution, speed of production is fast, and prefabricated post is docked with arcuate base to be easy, and construction efficiency is high, and structural strength is good.

Description

A kind of bellows-type quick connecting method of double layer tunnel inside prefabricated components
Technical field
The invention belongs to Tunnel Engineering field, the bellows-type for being related to a kind of double layer tunnel inside prefabricated components quickly connects Method.
Background technology
Currently, the construction generally use prefabricated component rapid construction flyunder of large-diameter shield internal double layers lane structure Afterwards, cast-in-place construction upper layer fine strain of millet, plate, rod structure method, as above sea Road tunnel, three road tunnel of welcome, military project road tunnel with And three road tunnel of Nanjing latitude etc..This construction method structural integrity, durability and other effects are preferable, but the engineering method is prefabricated Degree is relatively low, and in addition to flyunder, other internal components are both needed to cast in situs.Due to tunnel internal narrow space, internal structure Construction organization is inconvenient, if constructed using cast-in-place method, not only speed of application is slow, but also influences shield and normally promote, and then influences The duration of entire shield tunnel.Therefore, in modern shield tunnel construction, internal structure construction is prefabricated or even complete pre- using half Inhibition and generation technology is inevitable trend.
Precast construction has many advantages, such as that production efficiency height, good product quality, labor intensity be low, environmental protection.But But for prefabricated construction system, connecting node is most important, and node will not only be convenient for construction, but also will be Its integrality is kept under geological process.The quick connection side of bellows-type of prefabricated components inside double layer tunnel proposed by the present invention Method, docking are easy, and construction efficiency is high, and structural strength is good, have engineering application value.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of prefabricated post factory is pre- System, standardized production is quality controllable, and construction efficiency is high, is conducive to improve tunnel internal structure construction speed, shortens constructing tunnel The bellows-type quick connecting method of prefabricated components inside the double layer tunnel of duration.
The purpose of the present invention can be achieved through the following technical solutions:A kind of ripple of double layer tunnel inside prefabricated components Tubular type quick connecting method, which is characterized in that this method is to pour arcuate base in advance on the section of jurisdiction of double layer tunnel, the arc It is embedded with metal bellows in pedestal, prefabricated post is set in arcuate base, has prefabricated post to connect reinforcing bar, prefabricated post in the prefabricated post Connection reinforcing bar is stretched out from prefabricated column bottom, is inserted into metal bellows pre-buried in arcuate base, finally, in metal bellows Grouting material is injected in portion.
Pre-buried prefabricated post connection reinforcing bar is more in the prefabricated post, is vertically arranged in prefabricated post side.
Multiple metal bellows are embedded in the prefabricated post, the cloth corresponding with prefabricated post connection reinforcing bar in arcuate base It sets.
Pre-buried prefabricated post connection reinforcing bar is identical as the axis of metal bellows in the arcuate base.
Trepanning is arranged at the wavy metal bottom of the tube and top, which draws arcuate base surface by pvc pipe so that After the prefabricated post connection reinforcing bar that prefabricated post end stretch goes out is inserted into metal bellows pre-buried in arcuate base, in metal bellows Inside fills grouting material.
Trepanning on the metal bellows is tightly connected with the pvc pipe.
The metal bellows overall length connects bar diameters not less than 24 times of prefabricated posts, metal bellows minimum diameter with The difference that prefabricated post connects reinforcing bar nominal diameter is not less than 40mm.
Compared with prior art, the invention has the advantages that:Due to tunnel internal narrow space, internal structure is applied Work tissue is inconvenient, and in conventional tunnel structure, the cast-in-place method construction of column generally use, this so that speed of application is slow, influences Shield normally promotes, and then influences the duration of entire shield tunnel.The ripple of prefabricated components inside this double layer tunnel of the present invention The docking of tubular type quick connecting method is easy, and construction efficiency is high, and structural strength is good, and allows tunnel internal column in factory It is prefabricated, shorten the construction period.
Description of the drawings
Fig. 1 is the elevational schematic view of the embodiment of the present invention;
Fig. 2 is the A-A sectional views of embodiment illustrated in fig. 1;
Fig. 3 is the metal bellows structural map of embodiment illustrated in fig. 1;
Attached figure label explanation:
1-prefabricated post;2-prefabricated posts connect reinforcing bar;3-grouting materials;4-metal bellows;5-pulp pvc pipe a;6― Slip casting pvc pipe b;7-arcuate bases;8-sections of jurisdiction;9-metal bellows slurry outlet a;10-metal bellows injected hole b.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figs. 1-3, inside a kind of double layer tunnel prefabricated components bellows-type quick connecting method, this method be Arcuate base 7 is poured in advance on the section of jurisdiction 8 of double layer tunnel, is embedded with metal bellows 4 in the arcuate base 7, in arcuate base 7 Prefabricated post 1 is set, has prefabricated post to connect reinforcing bar 2 in the prefabricated post 1, prefabricated post connects reinforcing bar 2 and stretched out from 1 bottom of prefabricated post, inserted Enter in metal bellows 4 pre-buried in arcuate base 7, finally, grouting material 3 is injected inside metal bellows 4.
Wherein, prefabricated post pre-buried in prefabricated post 1 connection reinforcing bar 2 is more, is vertically arranged in 1 side of prefabricated post.Institute Multiple metal bellows 4 are embedded in the prefabricated post 1 stated, the arrangement corresponding with prefabricated post connection reinforcing bar 2 in arcuate base 7.
Pre-buried prefabricated post connection reinforcing bar 2 is identical as the axis of metal bellows 4 in the arcuate base 7.Described Trepanning is arranged at 4 bottom of metal bellows and top:Metal bellows slurry outlet a9 and metal bellows injected hole b10 are (such as Fig. 3 institutes Show), metal bellows slurry outlet a9 is tightly connected with slip casting pvc pipe b6, metal bellows injected hole b10 and pulp pvc pipe a5 It is tightly connected, two trepannings draw 7 surface of arcuate base by two slip casting pvc pipes so that go out from 1 end stretch of prefabricated post prefabricated Column connects reinforcing bar 2 and is inserted into after metal bellows 4 pre-buried in arcuate base 7, and grouting can be filled inside metal bellows 4 Material.
4 overall length of metal bellows connects 2 diameters of reinforcing bar not less than 24 times of prefabricated posts, in 4 minimum of metal bellows The difference that diameter connect 2 nominal diameter of reinforcing bar with prefabricated post is not less than 40mm.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein General Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to implementations here Example, those skilled in the art's announcement according to the present invention, the improvement made for the present invention and modification all should be the present invention's Within protection domain.

Claims (7)

1. the bellows-type quick connecting method of prefabricated components inside a kind of double layer tunnel, which is characterized in that this method is double Arcuate base (7) is poured in advance on the section of jurisdiction (8) in layer tunnel, and metal bellows (4), arc are embedded in the arcuate base (7) Prefabricated post (1) is set on pedestal (7), has in the prefabricated post (1) prefabricated post to connect reinforcing bar (2), prefabricated post connects reinforcing bar (2) from pre- Column (1) bottom processed is stretched out, and is inserted into metal bellows (4) pre-buried in arcuate base (7), finally, in metal bellows (4) Grouting material (3) is injected in portion.
2. the bellows-type quick connecting method of prefabricated components, special inside a kind of double layer tunnel according to claim 1 Sign is that pre-buried prefabricated post connection reinforcing bar (2) is more in the prefabricated post (1), the vertical cloth in prefabricated post (1) side It sets.
3. the bellows-type quick connecting method of prefabricated components, special inside a kind of double layer tunnel according to claim 1 Sign is, multiple metal bellows (4) are embedded in the prefabricated post (1), and steel is connect with prefabricated post in arcuate base (7) The corresponding arrangement of muscle (2).
4. the bellows-type quick connecting method of prefabricated components, special inside a kind of double layer tunnel according to claim 1 Sign is that pre-buried prefabricated post connection reinforcing bar (2) is identical as the axis of metal bellows (4) in the arcuate base (7).
5. the bellows-type quick connecting method of prefabricated components, special inside a kind of double layer tunnel according to claim 1 Sign is that trepanning is arranged at the metal bellows (4) bottom and top, which draws arcuate base (7) table by pvc pipe Face so that be inserted into metal bellows pre-buried in arcuate base (7) from the prefabricated post connection reinforcing bar (2) that prefabricated post (1) end stretch goes out (4) after, grouting material is filled inside metal bellows (4).
6. the bellows-type quick connecting method of prefabricated components, special inside a kind of double layer tunnel according to claim 5 Sign is that the trepanning on the metal bellows (4) is tightly connected with the pvc pipe.
7. the bellows-type quick connecting method of prefabricated components, special inside a kind of double layer tunnel according to claim 1 Sign is that not less than 24 times prefabricated posts of the metal bellows (4) overall length connect reinforcing bar (2) diameter, and metal bellows (4) is most The difference that small internal diameter connect reinforcing bar (2) nominal diameter with prefabricated post is not less than 40mm.
CN201810393940.XA 2018-04-27 2018-04-27 A kind of bellows-type quick connecting method of double layer tunnel inside prefabricated components Pending CN108756933A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761344A (en) * 2010-01-14 2010-06-30 华南理工大学 Prefabricated pipe section for shield tunnel and preparation method thereof
CN102966016A (en) * 2012-12-18 2013-03-13 中交公路规划设计院有限公司 Internal double-layer prefabricated traffic lane structure of shield tunnel
CN204691081U (en) * 2015-05-25 2015-10-07 沈阳建筑大学 Containing constraint bellows reinforcement lapping connection component with ribbing
CN106320537A (en) * 2016-10-31 2017-01-11 华侨大学 Prefabricated concrete-filled square steel tube column and steel girder connecting joint
CN107288269A (en) * 2017-07-21 2017-10-24 长沙远大住宅工业集团股份有限公司 A kind of prefabricated post attachment structure
CN107447647A (en) * 2017-07-25 2017-12-08 武汉理工大学 Assembled bridge pier and its construction method
CN206829417U (en) * 2017-06-08 2018-01-02 陕西建筑产业投资集团有限公司 Anchor formula connecting structure under a kind of precast shear wall vertical reinforcement bellows
CN207063153U (en) * 2017-02-23 2018-03-02 华西能源工程有限公司 A kind of sleeve grouting formula reinforced concrete precast assembling bean column node

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101761344A (en) * 2010-01-14 2010-06-30 华南理工大学 Prefabricated pipe section for shield tunnel and preparation method thereof
CN102966016A (en) * 2012-12-18 2013-03-13 中交公路规划设计院有限公司 Internal double-layer prefabricated traffic lane structure of shield tunnel
CN204691081U (en) * 2015-05-25 2015-10-07 沈阳建筑大学 Containing constraint bellows reinforcement lapping connection component with ribbing
CN106320537A (en) * 2016-10-31 2017-01-11 华侨大学 Prefabricated concrete-filled square steel tube column and steel girder connecting joint
CN207063153U (en) * 2017-02-23 2018-03-02 华西能源工程有限公司 A kind of sleeve grouting formula reinforced concrete precast assembling bean column node
CN206829417U (en) * 2017-06-08 2018-01-02 陕西建筑产业投资集团有限公司 Anchor formula connecting structure under a kind of precast shear wall vertical reinforcement bellows
CN107288269A (en) * 2017-07-21 2017-10-24 长沙远大住宅工业集团股份有限公司 A kind of prefabricated post attachment structure
CN107447647A (en) * 2017-07-25 2017-12-08 武汉理工大学 Assembled bridge pier and its construction method

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