CN103195447A - Construction method of quake-proof tunnel structure penetrating through flexible fracture zone - Google Patents

Construction method of quake-proof tunnel structure penetrating through flexible fracture zone Download PDF

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Publication number
CN103195447A
CN103195447A CN2013101189571A CN201310118957A CN103195447A CN 103195447 A CN103195447 A CN 103195447A CN 2013101189571 A CN2013101189571 A CN 2013101189571A CN 201310118957 A CN201310118957 A CN 201310118957A CN 103195447 A CN103195447 A CN 103195447A
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tunnel
lining
band
flexibly
transition
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CN103195447B (en
Inventor
耿萍
唐金良
何川
何悦
晏启祥
胥洪远
陆义松
应楚斌
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SICHUAN HUADIAN MULIHE HYDRO POWER DEVELOPMENT Co Ltd
Southwest Jiaotong University
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SICHUAN HUADIAN MULIHE HYDRO POWER DEVELOPMENT Co Ltd
Southwest Jiaotong University
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Abstract

A construction method of a quake-proof tunnel structure penetrating through a flexible fracture zone includes that outer linings and inner linings are built at a position which is 2.8 to 3.5 times of the tunnel diameter away from the edge of the flexible fracture zone to form into an out-of-zone tunnel structure; the position which is between 2.8 to 3.5 times of the tunnel diameter away from the edge of the flexible fracture zone and 5m away from the edge of the flexible fracture zone is provided with transition tunnel connecting sections and transition soft connecting sections of low rigidity in an alternating mode; damping gaps are reserved on inner linings which are arranged at the position which is 5m away from the edge of the flexible fracture zone and the edge of the flexible fracture zone; rubber layers are filled between inner linings and outer linings which are arranged between the position which is 5m away from the edge of the flexible fracture zone and the edge of the flexible fracture zone; and in-zone tunnel lining connecting sections and in-zone soft connecting sections are formed into an in-zone tunnel structure in the flexible fracture zone. The construction method of the quake-proof tunnel structure penetrating through the flexible fracture zone has the advantages of being capable of effectively reducing influence of severe motions of the flexible fracture zone on the tunnel in an earthquake, reducing tunnel damage caused by the earthquake and enabling the damage to be easy to maintain to timely recover transportation, perform earthquake relief work on disaster areas and furthest reduce casualties and losses.

Description

A kind of construction method that passes through the antidetonation tunnel structure of active breaking belt
Technical field
The present invention relates to a kind of construction method that passes through the antidetonation tunnel structure of active breaking belt.
Background technology
Nineteen twenty-three Japan great kanto earthquake, near 25 tunnels the earthquake centre are damaged.The Bingku county south violent earthquake that take place in Japan January 17 nineteen ninety-five, seismic magnitude is 7.3 grades of Richter scales, make more than 100 tunnel that in various degree destruction be taken place, damaging comparatively typical tunnel has tunnel, railway Dongshan, Kobe, Kobe turn up the soil greatly iron station and pregnancy tunnel etc.7.3 grades of earthquakes of collection collection that on September 21st, 1999, Taiwan took place, 8 kilometers of the depths of focus, many tunnels of No. 8, No. 14 highways are badly damaged to cause Taiwan.In 5.12 Wenchuan earthquakes that Chinese Wenchuan in 2008 takes place, destruction in various degree appears in many tunnels, and in 57 tunnels of total of investigation, 49 tunnel lining generation concrete blocks be full of cracks are arranged, drop, even destruction in various degree such as bar bending.
Investigation shows, when the tunnel passes through active breaking belt, can make the tunnel stand more serious shear action during earthquake, make the tunnel produce destruction large-area, that be difficult to repair, cause great injures and deaths and loss, and make traffic be difficult to timely recovery, also can't in time carry out earthquake relief work to the disaster area.For farthest alleviating injures and deaths and the loss that antidetonation causes, should allow the tunnel not pass through active breaking belt as far as possible.But along with the development of society, the scope of building the area, tunnel is more and more wider, and active breaking belt can not be avoided fully in the tunnel, and therefore, to passing through the tunnel of active breaking belt, its structure need have good seismic resistance.
Summary of the invention
The purpose of this invention is to provide a kind of construction method that passes through the antidetonation tunnel structure of active breaking belt, tunnel with the construction of this kind method, has good shock resisting structure, the aggravating activities of active breaking belt is to the influence in tunnel in the time of effectively reducing earthquake, make the tunnel little because of the destruction that earthquake is subjected to, be easy to repair, in time to resume traffic, can carry out earthquake relief work to the disaster area more in time, farthest alleviate injures and deaths and loss that antidetonation causes.
The present invention realizes that the technical scheme that its goal of the invention adopts is, a kind of construction method that passes through the antidetonation tunnel structure of active breaking belt, and its way is:
A, distance active breaking belt border 2.8-3.5 tunnel diameter with build at a distance outer lining, liner forms band outer tunnel structure;
B, at distance active breaking belt border 2.8-3.5 times tunnel diameter to apart between the 5m of active breaking belt border:
B1, the section of flexibly connecting of construction transition earlier, the outer lining of the transition section of flexibly connecting is identical with the outer lining of band outer tunnel structure, and the reinforcing bar density of liner (201b) is lower than the reinforcing bar density of the liner (100b) of band outer tunnel structure (100); The length L of the transition section of flexibly connecting jDetermined by following formula:
△ u is the maximum alternate displacement of active breaking belt in the formula, L pFor interval, the value of the adjacent transition section of flexibly connecting is 1/2~1/3 times of tunnel diameter, Be the transition section of flexibly connecting liner cross section limit bending curvature;
B2, construction length L pBe the transition lining cutting linkage section of 1/2~1/3 times of tunnel diameter, the liner of transition lining cutting linkage section is identical with liner and the outer lining of band outer tunnel structure with outer lining;
Repeat B1, the B2 operation in step, until repairing to distance active breaking belt 5m place;
C, at distance active breaking belt 5m place between the active breaking belt border:
Build the lining cutting linkage section of band rubber layer earlier, build the section of flexibly connecting of band rubber layer again, so circulation is by the lining cutting linkage section of band rubber layer, the alternate tunnel structure that constitutes the band rubber layer of the section of flexibly connecting of band rubber layer; And section start and termination at the tunnel structure liner of being with rubber layer all leave absorbing joint;
The length, liner, outer lining of the section of flexibly connecting of band rubber layer is identical with the transition section of flexibly connecting all, but serve as a contrast within it, be filled with rubber layer between the outer lining; The length, liner, outer lining of the inside lining linkage section of band rubber layer is identical with transition lining cutting linkage section all, but serve as a contrast within it, be filled with rubber layer between the outer lining;
D, in the active breaking belt border:
Repair band inside lining linkage section earlier, repair the section of flexibly connecting in the band again, so circulation, by the section of flexibly connecting in band inside lining linkage section, the band alternate constitute be with the inner tunnel structure; Equal identical with the transition section of flexibly connecting of the length of the section of flexibly connecting, liner, outer lining in the band; The length of band inside lining linkage section, liner, outer lining be identical with transition lining cutting linkage section all;
Band inner tunnel structure has been repaiied, and namely finishes building of the antidetonation tunnel structure that passes through active breaking belt.
Compared with prior art, the invention has the beneficial effects as follows:
One, active breaking belt generation changing of the relative positions during earthquake, destructions such as shearing will concentrate on the low section of flexibly connecting of rigidity, the transition section of flexibly connecting and absorbing joint, make these positions that changing of the relative positions, displacement take place, and seismic energy is well discharged; Can not cause structural integrity, random destruction.
Two, outside the active breaking belt border, be filled with the tunnel structure of rubber layer between the liner in the 5m scope and the outer lining, also can well absorb seismic energy, further lowered the destruction of earthquake to the tunnel.
Three, outside the active breaking belt border and in the 2.8-3.5 times of tunnel diameter range in active breaking belt border, the transition section of flexibly connecting of setting, well the internal force that produces of releasing activity fault zone is concentrated, simultaneously also Control Engineering cost preferably.
In a word, the tunnel of building with the inventive method is when earthquake, only can be subjected to local failure, local failure itself can not cause big injures and deaths and loss, while is convenient for maintaining also, has shortened the repair time of engineering, can in time resume traffic, more promptly earthquake relief work is carried out in the disaster area, farthest alleviated injures and deaths and loss that earthquake causes.
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the cross-sectional schematic with the antidetonation tunnel structure that passes through active breaking belt of embodiment of the invention method construction.
The specific embodiment
Embodiment
Fig. 1 illustrates, and a kind of specific embodiment of the present invention is, a kind of construction method that passes through the antidetonation tunnel structure of active breaking belt, and its way is:
A, form band outer tunnel structure 100 at distance active breaking belt F border 2.8-3.5 tunnel diameter to build at a distance outer lining 100a, liner 100b;
B, at border 2.8-3.5 times of tunnel diameter of distance active breaking belt F to apart between the active breaking belt F border 5m:
B1, the section of flexibly connecting of construction transition earlier 201, the outer lining 201a of the transition section of flexibly connecting 201 is identical with the outer lining 100a of band outer tunnel structure 100, and the reinforcing bar density of liner (201b) is lower than the reinforcing bar density of the liner (100b) of band outer tunnel structure (100); The length L of the transition section of flexibly connecting 201 jDetermined by following formula:
△ u is the maximum alternate displacement of active breaking belt F in the formula, L pFor interval, the value of the adjacent transition section of flexibly connecting 201 is 1/2~1/3 times of tunnel diameter, Be the transition section of flexibly connecting liner 201b cross section limit bending curvature;
B2, construction length L pBe the transition lining cutting linkage section 202 of 1/2~1/3 times of tunnel diameter, the liner 202b of transition lining cutting linkage section 202 is identical with outer lining 100a with the liner 100b of band outer tunnel structure 100 with outer lining 202a;
Repeat B1, the B2 operation in step, until repairing to distance active breaking belt 5m place;
C, at distance active breaking belt 5m place between the active breaking belt border:
Build the lining cutting linkage section 302 of band rubber layer earlier, build the section of flexibly connecting 301 of band rubber layer again, so circulation is by the lining cutting linkage section 302 of band rubber layer, the section of the flexibly connecting 301 alternate tunnel structures 300 that constitute the band rubber layer of band rubber layer; And section start and termination at tunnel structure 300 liners of being with rubber layer all leave absorbing joint 303;
The length, liner 301b, outer lining 301a of the section of flexibly connecting 301 of band rubber layer is identical with the transition section of flexibly connecting 201 all, is filled with rubber layer c but serve as a contrast between 301b, the outer lining 301a within it; The length, liner 302b, outer lining 302a of the inside lining linkage section 302 of band rubber layer is identical with transition lining cutting linkage section 202 all, is filled with rubber layer c but serve as a contrast between 302b, the outer lining 302a within it;
D, in active breaking belt F border:
Repair band inside lining linkage section 402 earlier, repair the section of flexibly connecting 401 in the band again, so circulation, by the section of flexibly connecting in band inside lining linkage section 402, the band 401 alternate constitute be with inner tunnel structure 400; Equal identical with the transition section of flexibly connecting 201 of the length of the section of flexibly connecting 401, liner 401b, outer lining 401a in the band; The length of band inside lining linkage section 402, liner 402b, outer lining 402a be identical with transition lining cutting linkage section 202 all;
Band inner tunnel structure 400 has been repaiied, and namely finishes building of the antidetonation tunnel structure that passes through active breaking belt.
During actual enforcement, A begins to build the transition section of flexibly connecting 201 positions in the step, can require to determine according to reality in border 2.8-3.5 times of tunnel diameter range of distance active breaking belt F, when anti-seismic performance requires to get big value when high, as the 3.5 times of tunnel diameters in distance active breaking belt F border; When anti-seismic performance requires to hang down, then get the small value, as the 2.8 times of tunnel diameters in distance active breaking belt F border.

Claims (1)

1. construction method that passes through the antidetonation tunnel structure of active breaking belt, its way is:
A, distance active breaking belt (F) border 2.8-3.5 tunnel diameter with build at a distance outer lining (100a), liner (100b) forms band outer tunnel structure (100);
B, at border 2.8-3.5 times of tunnel diameter of distance active breaking belt (F) to apart between active breaking belt (F) the border 5m:
B1, elder generation build the transition section of flexibly connecting (201), the outer lining (201a) of the transition section of flexibly connecting (201) is identical with the outer lining (100a) of band outer tunnel structure (100), and the reinforcing bar density of liner (201b) is lower than the reinforcing bar density of the liner (100b) of band outer tunnel structure (100); The length L of the transition section of flexibly connecting (201) jDetermined by following formula:
△ u is the maximum alternate displacement of active breaking belt (F) in the formula, L pFor interval, the value of the adjacent transition section of flexibly connecting (201) is 1/2~1/3 times of tunnel diameter, Be the transition section of flexibly connecting liner (201b) cross section limit bending curvature;
B2, construction length L pBe the transition lining cutting linkage section (202) of 1/2~1/3 times of tunnel diameter, the liner (202b) of transition lining cutting linkage section (202) is identical with outer lining (100a) with the liner (100b) of band outer tunnel structure (100) with outer lining (202a);
Repeat B1, the B2 operation in step, until repairing to distance active breaking belt 5m place;
C, at 5m place, distance active breaking belt border between the active breaking belt border:
Build the lining cutting linkage section (302) of band rubber layer earlier, build the section of flexibly connecting (301) of band rubber layer again, so circulation is by the tunnel structure (300) of the alternate formation band of the section of flexibly connecting (301) rubber layer of the lining cutting linkage section (302) of band rubber layer, band rubber layer; And section start and termination at tunnel structure (300) liner of being with rubber layer all leave absorbing joint (303);
The length, liner (301b), outer lining (301a) of the section of flexibly connecting (301) of band rubber layer is identical with the transition section of flexibly connecting (201) all, is filled with rubber layer (c) but serve as a contrast between (301b), the outer lining (301a) within it; The length, liner (302b), outer lining (302a) of the inside lining linkage section (302) of band rubber layer is identical with transition lining cutting linkage section (202) all, is filled with rubber layer (c) but serve as a contrast between (302b), the outer lining (302a) within it;
D, in active breaking belt (F) border:
Repair band inside lining linkage section (402) earlier, repair the section of flexibly connecting in the band (401) again, so circulation is by the section of flexibly connecting (401) alternate formation band inner tunnel structure (400) in band inside lining linkage section (402), the band; The length of the section of flexibly connecting in the band (401), liner (401b), outer lining (401a) be identical with the transition section of flexibly connecting (201) all; The length, liner (402b), outer lining (402a) of band inside lining linkage section (402) is identical with transition lining cutting linkage section (202) all;
Band inner tunnel structure (400) has been repaiied, and namely finishes building of the antidetonation tunnel structure that passes through active breaking belt.
CN201310118957.1A 2013-04-08 2013-04-08 Construction method of quake-proof tunnel structure penetrating through flexible fracture zone Active CN103195447B (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN103485796B (en) * 2013-10-18 2015-06-17 四川省交通运输厅公路规划勘察设计研究院 Tunnel supporting structure across active fault
CN104863615A (en) * 2015-06-16 2015-08-26 西南交通大学 Anti-seismic tunnel structure spanning large-scale active fault zone
CN106089235A (en) * 2016-07-21 2016-11-09 中国科学院武汉岩土力学研究所 A kind of water-conveyance tunnel error resilience passing through large-scale activity fracture belt is broken structure
CN106593464A (en) * 2016-11-24 2017-04-26 山东科技大学 Tunnel axial damping and energy absorbing device and tunnel lining structure with same
CN107798163A (en) * 2017-09-06 2018-03-13 北京交通大学 The anti-dislocation combination seam design method of Tunnel Passing active fault
CN109505621A (en) * 2019-01-27 2019-03-22 郭德平 A kind of earthquake territory railway tunnel Portal Section antidetonation shock attenuation structure
CN110005444A (en) * 2019-05-05 2019-07-12 西南交通大学 Highly seismic region method for tunnel construction and tunnel support structure

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CN101550831A (en) * 2009-04-09 2009-10-07 西南交通大学 Shock resisting and reducing structure spanning movable fault tunnel
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103485796B (en) * 2013-10-18 2015-06-17 四川省交通运输厅公路规划勘察设计研究院 Tunnel supporting structure across active fault
CN104863615A (en) * 2015-06-16 2015-08-26 西南交通大学 Anti-seismic tunnel structure spanning large-scale active fault zone
CN106089235A (en) * 2016-07-21 2016-11-09 中国科学院武汉岩土力学研究所 A kind of water-conveyance tunnel error resilience passing through large-scale activity fracture belt is broken structure
CN106593464A (en) * 2016-11-24 2017-04-26 山东科技大学 Tunnel axial damping and energy absorbing device and tunnel lining structure with same
CN106593464B (en) * 2016-11-24 2019-05-21 山东科技大学 A kind of tunnel axial damping energy absorption device and the tunnel lining structure with the device
CN107798163A (en) * 2017-09-06 2018-03-13 北京交通大学 The anti-dislocation combination seam design method of Tunnel Passing active fault
CN109505621A (en) * 2019-01-27 2019-03-22 郭德平 A kind of earthquake territory railway tunnel Portal Section antidetonation shock attenuation structure
CN110005444A (en) * 2019-05-05 2019-07-12 西南交通大学 Highly seismic region method for tunnel construction and tunnel support structure

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