CN205936638U

CN205936638U - Oversensitive round shield tunnel lining cutting

Info

Publication number: CN205936638U
Application number: CN201620723413.7U
Authority: CN
Inventors: 夏勇; 申志军; 王丽庆; 王泊松; 李建伟; 王成
Original assignee: Third Railway Survey and Design Institute Group Corp
Current assignee: China Railway Design Corp
Priority date: 2016-07-11
Filing date: 2016-07-11
Publication date: 2017-02-08
Anticipated expiration: 2026-07-11

Abstract

The utility model discloses an oversensitive round shield tunnel lining cutting, it closes the domain lining cutting of splicing to include to be enclosed by uniform thickness arc section of jurisdiction, the profile is oversensitive circular in the domain lining cutting. Domain lining cutting section is the axial symmetry figure, the symmetry axis be the tunnel central line. The utility model discloses the profile is unanimous in the interior profile that well section of jurisdiction design was adopted and the tunnel of mountain tunnel mine method construction, and the structural cohesion of being convenient for realizes that the shield constructs the nos shaft of construction and starts, receives the requirement, overcome circular shield and constructed the section of jurisdiction too big problem of space fill concrete under the rail of back of assembling, and the atress is reasonable, and each section of jurisdiction combines section position atress in place to carry out the arrangement of reinforcement, the degree of difficulty and quickening construction progress but effective control investment, reduction are under construction. The utility model discloses the design, the construction that are applicable to shield tunnel under major diameter, big buried depth, long distance, the rich water and soil matter formation condition that can be extensive.

Description

A kind of oversensitive O-tube shield tunnel lining cutting

Technical field

This utility model belongs to a kind of shield tunnel liner and in particular to a kind of oversensitive O-tube shield tunnel lining cutting.

Background technology

Shield, since being born, has extensively been applied and has been developed rapidly with its safety, high-quality, quick, environmental protection characteristic. China's shield technique starts from nineteen fifty-three, and northeast Fuxin colliery diameter 2.6m handss dig the Liu Shui tunnel of formula shield-tunneling construction, 60 to 90 years For first Shanghai soft soil shield technique, to middle and late stage nineties Guangzhou compound stratum shield technique.Shield technique is advised greatly in traffic Constantly update in mould practice and innovation, the geological conditions of all kinds of complexity can not only be adapted to, and to " long, big, difficult, fast, Excellent " development, even more from " traffic " to " electric power, water utilities, combustion gas " broad areas extension；Shield technique is so that geological adaptability is wide, machine Tool degree height is the development trend of following underground engineering construction.

At present shield diameter is increasing, and driving distance is more and more longer, all using being circular configuration, its rail of large-diameter shield Lower space arranges concrete, is required using function, rigidity and monolithic stability with the operation meeting tunnel.City tunnel is in order to reduce Occupancy on the underground space and reduce on structures impact and reduce investment, once attempts non-circular structure, Japan is in the eighties Development and application Rectangular Tunnel, has manufactured shape of a hoof machinery for 1986 and has excavated shield, manufactured ECL shield within 1991；Shanghai track Traffic No. 8 lines double-O-tube shields in 2003 and Guangzhou, Shanghai municipal works nineteen ninety-five rectangular shield etc. successfully use, for special-shaped shield Technology development done deposit work.

Circular configuration advantage is that reasonable stress, construction friction power are little；But low space utilization, implements operation interference under rail Greatly, in-cavity construction environment is poor.General traffic tunnel is taken precautions against natural calamities for satisfaction and is evacuated space under function setting rail, and it is with the obvious advantage；But How mountain ridge railway tunnel, according to circle, is filled by plain concrete under its rail, and digging soil amount is big, backfill quantity of masonry greatly, and investment is high； Though rectangular cross section energy effectively utilizes space, structure stress is unfavorable.

Content of the invention

This utility model is to solve the problems, such as that prior art proposes, and its objective is to provide a kind of oversensitive targe structure tunnel Road lining cutting.

The technical solution of the utility model is：A kind of oversensitive O-tube shield tunnel lining cutting, encloses including by uniform thickness arc section of jurisdiction The domain lining cutting being spliced into, described domain lining cutting Internal periphery is oversensitive round shape.

Described domain lining section is zhou duicheng tuxing, and described axis of symmetry is tunnel center line.

Described domain lining cutting includes the odd loop of spaced series and even loop successively.

Described odd loop, even loop are along tunnel center line mirror image each other.

Described odd loop and even loop all include wedge, No. I adjacent block, No. II block that is connected, No. I conventional bar, No. II general Logical block, No. III conventional bar, No. IV conventional bar, No. V conventional bar.

Described wedge is located at the inclined 40 ° of positions of vault.

It is staggered joint erection between described adjacent odd loop, even loop.

The Internal periphery that in this utility model, Segment design adopts is consistent with the tunnel Internal periphery of mountain tunnel mining method construction, It is easy to structure cohesion, realizes shield-tunneling construction no vertical shaft and originate, receive requirement, overcome space under rail after circular shield pipe sheet assembling The big problem of fill concrete, and reasonable stress, each section of jurisdiction carries out arrangement of reinforcement with reference to place section position stress, can effective control throw Money, reduction difficulty of construction and accelerating construction progress.This utility model can be widely suitable for major diameter, great burying, distance, The design of shield tunnel, construction under the conditions of rich water texture stratum.

Brief description

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the schematic diagram of odd loop in this utility model；

Fig. 3 is the schematic diagram of even loop in this utility model；

Wherein：

1 wedge 2 I adjacent block

4 No. I conventional bar of 3 No. II adjacent blocks

6 No. III conventional bar of 5 No. II conventional bar

8 No. V conventional bar of 7 No. IV conventional bar.

Specific embodiment

Hereinafter, with embodiment, this utility model is described in detail referring to the drawings：

As shown in Fig. 1 ~ 3, a kind of oversensitive O-tube shield tunnel lining cutting, enclose, including by uniform thickness arc section of jurisdiction, the domain being spliced into Lining cutting, described domain lining cutting Internal periphery is oversensitive round shape.

Described odd loop and even loop all include 1, No. I adjacent block of wedge, 3, No. I conventional bar 4, II of 2, No. II adjacent block Number 5, No. III conventional bar of conventional bar, 7, No. V conventional bar 8 of 6, No. IV conventional bar.

Described wedge 1 is located at the inclined 40 ° of positions of vault.

It is staggered joint erection between described adjacent odd loop, even loop.

Pipe-plate lining ring has carried out inspection by different operating mode least favorable situations and has calculated, and specific aim carries out Reinforcement Design, is closed with economical Reason steel using amount ensures structure safety, meets structure safety index requirement.

Shield tunnel outline span is 11.54m, and highly for 10.59m, thickness is 500mm shield duct piece.Pipe sheet assembling Mode is intended using " 7+1 piecemeal " staggered joint erection mode.

Oversensitive round Lining Ring lining cutting centrage etc. is divided 22 parts, is divided into 7+1 block arc plate, i.e. 1, No. I phase of wedge Adjacent block 5, No. III conventional bar of 4, No. II conventional bar of 2, No. II adjacent piece 3, No. I conventional bar, 7, No. V conventional bar 8 of 6, No. IV conventional bar.

Design requirement is pressed in section of jurisdiction number, be transported to scene, assembling, assembled cyclization, and then the company of being concatenated into after shield machine driving Continue into multi-ring.

This utility model lining cutting relies on oversensitive round shield machine assembly molding, is designed with two kinds of structural shapes, series connection is spelled Dress forms tunnel-liner, first carries out piecemeal, typesetting, water proof structure arrangement etc. with odd number Lining Ring, then applies even loop shield lining Build.

The Internal periphery that in this utility model, Segment design adopts is consistent with the tunnel Internal periphery of mountain tunnel mining method construction, It is easy to structure cohesion, realizes shield-tunneling construction no vertical shaft and originate, receive requirement, overcome space under rail after circular shield pipe sheet assembling The big problem of fill concrete amount, and reasonable stress, each section of jurisdiction carries out arrangement of reinforcement with reference to place section position stress, can effective control Investment, reduction difficulty of construction and accelerating construction progress.This utility model can be widely suitable for major diameter, great burying, long away from The design of shield tunnel, construction under the conditions of, rich water texture stratum.

Claims

1. a kind of oversensitive O-tube shield tunnel lining cutting it is characterised in that：Serve as a contrast including being enclosed the domain being spliced into by uniform thickness arc section of jurisdiction Build, described domain lining cutting Internal periphery is oversensitive round shape.

2. a kind of oversensitive O-tube shield tunnel lining cutting according to claim 1 it is characterised in that：Described domain lining section is Zhou duicheng tuxing, described axis of symmetry is tunnel center line.

3. a kind of oversensitive O-tube shield tunnel lining cutting according to claim 2 it is characterised in that：Described domain lining cutting include according to The odd loop of minor tick series connection and even loop.

4. a kind of oversensitive O-tube shield tunnel lining cutting according to claim 3 it is characterised in that：Described odd loop, even loop Along tunnel center line mirror image each other.

5. a kind of oversensitive O-tube shield tunnel lining cutting according to claim 3 it is characterised in that：Described odd loop and even loop All include wedge, No. I adjacent block, No. II connected block, No. I conventional bar, No. II conventional bar, No. III conventional bar, No. IV conventional bar, No. V conventional bar.

6. a kind of oversensitive O-tube shield tunnel lining cutting according to claim 5 it is characterised in that：Described wedge is located at vault Inclined 40 ° of positions.

7. a kind of oversensitive O-tube shield tunnel lining cutting according to claim 3 it is characterised in that：Described adjacent odd loop, It is staggered joint erection between even loop.