CN108678770B - A kind of first lining process and structure suitable for large deformation tunnel - Google Patents
A kind of first lining process and structure suitable for large deformation tunnel Download PDFInfo
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- CN108678770B CN108678770B CN201810512283.6A CN201810512283A CN108678770B CN 108678770 B CN108678770 B CN 108678770B CN 201810512283 A CN201810512283 A CN 201810512283A CN 108678770 B CN108678770 B CN 108678770B
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- shaped steel
- shelf
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 98
- 239000010959 steel Substances 0.000 claims abstract description 98
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 239000011381 foam concrete Substances 0.000 claims abstract description 22
- 239000011378 shotcrete Substances 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 8
- 239000011229 interlayer Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 11
- 230000008093 supporting effect Effects 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 9
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/10—Lining 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
This application discloses a kind of first lining process and structure suitable for large deformation tunnel, lining methods include installation U-shaped steel arch unit and form annular steel arch-shelf；Foam concrete block is longitudinally performed along tunnel as deformation block, and the three-dimensional glass fibrous interlayer perpendicular to compression direction is equipped in the foam concrete block；To tunnel inner wall gunite concrete spray-up；When tunnel, extrusion deformation circumferentially reaches setting value, the radius of curvature in the cam and inner surface contact direction turns to maximum position, and holds out against the recess portion inner surface of the U-shaped steel arch unit and continue to relatively move between the U-shaped steel arch unit to limit.
Description
Technical field
The invention belongs to tunneling technique field, in particular to a kind of first lining process and structure suitable for large deformation tunnel.
Background technique
With the continuous development of the infrastructure constructions such as China's traffic, water conservancy, more and more high ground stress soft rock stress tunnels
It needs to build.High ground stress soft rock stress tunnel is easy to appear biggish extrusion deformation, by taking famous Wuqiaoling tunnel as an example, logical
During passing fault crushed zone, the average deflection of country rock has reached 0.5-0.6m, about the 10% of tunnel excavation radius.Tunnel
Road supporting practice shows traditional shotcrete lining+I-steel combined supporting scheme, when squeezing large deformation generation,
It is easy to appear the distortions of Lining cracks and steel arch-shelf, cannot play good supporting effect.Cause a weight of above-mentioned consequence
When wanting reason, gunite concrete+I-steel combined supporting scheme deformability is limited, when it when its deflection reaches 1-2%
When, it is possible to generate cracking and the destruction of shotcrete lining.Therefore, in squeezing large deformation tunnel, to prevent lining cutting knot
The destruction of structure needs to improve the deformability of lining cutting.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of first lining that can be suitable for large deformation tunnel
Scheme.
In a first aspect, the embodiment of the present application provides a kind of first lining process suitable for large deformation tunnel, including following step
It is rapid:
Installation U-shaped steel arch unit simultaneously forms annular steel arch-shelf, specific connection type are as follows: the adjacent U-shaped steel arch
Unit is stacked at tie point, is equipped with the steel arch frame connector, the steel arch frame connector packet what the stacked place surrounded
It includes opposed first and surrounds section and the second encirclement section, described first, which surrounds the U-shaped steel of the first inner wall of section against top, encircles
At least part of top surface of frame unit, first inner wall are equipped with protrusion, and the protrusion is equipped with cam, described convex
Second inner wall of the recess portion inner surface sliding contact of the outer rim of wheel and the U-shaped steel arch unit, the second encirclement section abuts
At least part of bottom surface of the U-shaped steel arch unit of lower section, described first, which surrounds section and described second, surrounds between section
Equipped with fastener, by adjust the fastener realize the arch connector to the clamping of the adjacent steel arch-shelf unit and
Connection；
Foam concrete block is longitudinally performed along tunnel as deformation block, is equipped in the foam concrete block perpendicular to compression
The three-dimensional glass fibrous interlayer in direction；
To tunnel inner wall gunite concrete spray-up；
When tunnel, extrusion deformation circumferentially reaches setting value, the curvature of the cam and inner surface contact direction
Radius turns to maximum position, and holds out against the recess portion inner surface of the U-shaped steel arch unit to limit the U-shaped steel arch list
Continue to relatively move between member.
In some embodiments of the application, first lining process further includes carrying out suspension roof support, and spray to exposed country rock
First pneumatically placed concrete layer, spray the just pneumatically placed concrete layer with a thickness of 5-10cm.
In some embodiments of the application, the spacing for installing the adjacent annular steel arch-shelf is controlled in 0.5-1.0m.
In some embodiments of the application, when performing the deformation block, the deformation block with a thickness of 5-30cm.
In some embodiments of the application, when spraying the concrete spray coating to tunnel inner wall, the ring steel is avoided
Arch and the deformation block.
In some embodiments of the application, when tunnel, extrusion deformation circumferentially reaches the setting value, emphasis needle
Multiple spray to gunite concrete is carried out at the tie point of the U-shaped steel arch unit.
Second aspect, the embodiment of the present application also provides a kind of first lining structures suitable for large deformation tunnel, including annular
Steel arch-shelf, deformation block and concrete spray coating, in which:
The annular steel arch-shelf is circumferentially spliced by several U-shaped steel arch units, the adjacent U-shaped steel arch list
Member is stacked at tie point, is equipped with the steel arch frame connector what the stacked place surrounded, the steel arch frame connector includes
Opposed first surrounds section and second surrounds section, and the described first the first inner wall for surrounding section abuts the U-shaped steel arch of top
At least part of top surface of unit, first inner wall are equipped with protrusion, and the protrusion is equipped with cam, the cam
Outer rim and the U-shaped steel arch unit recess portion inner surface sliding contact, it is described second encirclement section the second inner wall abut down
At least part of bottom surface of the U-shaped steel arch unit of side is set between the first encirclement section and the second encirclement section
There is fastener, realizes clamping and company of the arch connector to the adjacent steel arch-shelf unit by adjusting the fastener
It connects；
The deformation block is foam concrete block, and the three-dimensional glass perpendicular to compression direction is equipped in the foam concrete block
Glass fibrous interlayer；
The concrete spray coating is filled in its complementary space that tunnel just serves as a contrast；
When tunnel, extrusion deformation circumferentially reaches setting value, the curvature of the cam and inner surface contact direction
Radius turns to the maximum position being able to rotate, and holds out against the recess portion inner surface of the U-shaped steel arch unit to limit the U
Continue to relatively move between shaped steel arch unit.
In some embodiments of the application, the just lining structure further includes suspension roof support structure, and is located at the annular
First pneumatically placed concrete layer on the inside of steel arch-shelf, deformation block and concrete spray coating.
In some embodiments of the application, the steel arch frame connector is located near the deformation block, can be more
Be conducive to the compression of structure.
In some embodiments of the application, pass through multiple steel arch-shelf connections between the adjacent steel arch-shelf unit
Part connects jointly.
First lining scheme provided by the embodiments of the present application suitable for large deformation tunnel, since gunite concrete is by hydrated cementitious
The influence of effect, intensity is lower in place of injection, needs to get to intensity requirement in 1-2 days, and by the shadow of deformation block
It rings, the supporting power provided is relatively small.And annular steel arch-shelf is in surrouding rock deformation initial phase, due to circumferentially can produce change
Shape, the setting of cooperative transformation block, therefore country rock can allow for discharge certain deformation energy.When country rock discharges deformation energy, deformation
Moderate finite deformation can occur for the foam concrete in block, and the three-dimensional glass fiber being set in foam concrete block, then can increase
The ductility of strong foam concrete, improves mechanical characteristic behind its peak.
When surrouding rock deformation can discharge to a certain extent, if country rock continues deformation and rock mass internal structure will be made to change,
To make stress deteriorate.U-shaped steel arch unit is self-locking in junction generation in annular steel arch-shelf at this time, can provide timely stabilization
Supporting power, and be conducive to the integrality of concrete spray coating, be conducive to the performance of concrete spray coating mechanical property.After self-locking
The deformation block that mechanical characteristic is significantly improved behind annular steel arch-shelf, concrete spray coating and peak acts synergistically together, can be more preferable
Control country rock large deformation, prevent that cave in accident occurs because supporting power is insufficient.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the tunnel support cross-sectional view of the embodiment of the present application；
Fig. 2 shows deformation block position skiagraphs in the embodiment of the present application；
Fig. 3 shows deformation block vertical section detail drawing in the embodiment of the present application；
Fig. 4 shows the structure chart of steel arch frame connector in the embodiment of the present application.
1, first section is surrounded, 2, second surrounds section, 3, top surface, 4, protrusion, 5, cam, 6, recess portion inner surface, and 7, the
One inner wall, the 8, second inner wall, 10, deformation block, 11, steel arch-shelf, 12, concrete spray coating, 13, top steel arch-shelf unit, 14, lower section
Steel arch-shelf unit, 15, anchor pole, 16, first pneumatically placed concrete layer, 17, steel arch frame connector, 18, three-dimensional glass fibrous interlayer, 19, bubble
Foam concrete block.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the invention is instead of all the embodiments.For ease of description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the embodiment of the present invention for usually describing and showing in this figure
Component can arrange and design with a variety of different configurations.It is understood that specific embodiment described herein is only
It is only used for explaining related invention, rather than the restriction to the invention.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, belong to " setting ",
" connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one；It can be
Mechanical connection, is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
Referring to FIG. 1, it illustrates the liner structure provided by the embodiments of the present application suitable for large deformation tunnel, including anchor
Bar 15, annular steel arch-shelf 11, deformation block 10 and concrete spray coating 12, in which:
The annular steel arch-shelf 11 is circumferentially spliced by several U-shaped steel arch units, the adjacent U-shaped steel arch
Unit is stacked at tie point, is equipped with the steel arch frame connector 17, the steel arch frame connector what the stacked place surrounded
Section 1 and second is surrounded including opposed first and surrounds section 2, and the described first the first inner wall 7 for surrounding section 1 abuts top steel arch-shelf list
At least part of top surface 3 of member 13, first inner wall 7 are equipped with protrusion 4, and the protrusion 4 is equipped with cam 5, institute
The outer rim of cam 5 and 6 sliding contact of recess portion inner surface of the U-shaped steel arch unit are stated, described second surrounds in the second of section 2
Wall 8 abut lower section steel arch-shelf unit 14 at least part of bottom surface, it is described first surround section 1 and it is described second surround section 2 it
Between be equipped with fastener, realize clamping of the arch connector to the adjacent steel arch-shelf unit by adjusting the fastener
And connection.
The structure of steel arch frame connector is simple, with intensity is high, rigidity is larger, working resistance is stable, fashioned iron sliding is steady
The advantages that, when mutually overlapped fashioned iron generates mutual sliding because of stress when, cam 5 is connect due to it with fashioned iron recess portion inner surface 6
It touches generated frictional force and rotates with it.Since the radius of curvature of cam 5 gradually changes, after cam 5 rotates, cam 5 and type
More more crowded tighter between steel recess portion inner surface 6, because pressure is increasing, thus the resistance to sliding of generated frictional force, that is, fashioned iron is fast
Speed increases.When cam 5 turns to the maximum position that can be turned to the sliding of fashioned iron, the resistance to sliding of fashioned iron reaches therewith
To maximum value.Thereafter, with the increase of Tunnel Pressure, fashioned iron continuation is compressed, but the resistance to sliding of fashioned iron remains unchanged, bracket
It works under constant-resistance state.
The deformation block 10 includes foam concrete block 19, is equipped in the foam concrete block 19 vertical with compression direction
Three-dimensional glass fibrous interlayer 18；The concrete spray coating 12 is filled in its complementary space that tunnel just serves as a contrast；When tunnel circumferentially
When extrusion deformation reaches setting value, the cam 5 and the radius of curvature in inner surface contact direction turn to maximum position, and
The recess portion inner surface 6 of the U-shaped steel arch unit is held out against to limit and continue to occur opposite move between the U-shaped steel arch unit
It is dynamic.
The just lining structure further includes the first spray positioned at 12 inside of the annular steel arch-shelf, deformation block 10 and concrete spray coating
Concrete layer 16.The spacing of the adjacent annular steel arch-shelf is 0.5-1.0m.The deformation block 10 with a thickness of 5-30cm.
The above-mentioned shotcrete layer for being mounted with deformation block 10, when large deformation occurs for country rock, deformation block 10 will be with enclosing
The deformation of rock and deform, to increase the deformability of shotcrete layer.The deformation block 10 is according to country rock load along tunnel
Circumferential distribution situation arrangement.Generally it is symmetrical arranged at the vault, spandrel and haunch in tunnel.The size of deformation block 10
It should be configured according to the large deformation ability of country rock, generally 5-30cm is advisable.
Steel arch-shelf can guarantee the deformation with country rock and deform, and can provide stable supporting power.
The work progress at above-mentioned supporting construction scene is as follows:
(1) after tunnel excavation, first layer construction of shotcrete, jet thickness 5-10cm are carried out, the country rock made shows to put down
It is whole；
(2) steel arch-shelf is installed, and the clipping room of steel arch-shelf is away from control in the range of 0.5-1.0m；
(3) installation and fixation of foam concrete block is equipped with three-dimensional glass fibrous interlayer in foam concrete block.Foam is mixed
Solidifying soil block can be fixed using setscrew or steel plate, and the quantity of foam concrete block should be according to serious deformation magnitude
It determines, the length of single foam concrete block controls within the scope of 5-20cm；
(4) construction of shotcrete, it should be noted that cannot be by steel arch-shelf connector, the guarantor of foam concrete block in work progress
Shield, prevents it from losing compression deformation ability；
(5) it when the extrusion deformation degree when tunnel reaches design studies, carries out gunite concrete and sprays again, to foam concrete
The compressible joint location of block, steel arch-shelf carries out emphasis and sprays again, so that it is lost deformability, compressible lining cutting is made to become the lining that can not contract
Structure is built, lining cutting rigidity is improved, prevents country rock from continuing to deform.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of first lining process suitable for large deformation tunnel, which comprises the following steps:
Installation U-shaped steel arch unit simultaneously forms annular steel arch-shelf, specific connection type are as follows: the adjacent U-shaped steel arch unit
It is stacked at tie point, is equipped with steel arch frame connector what the stacked place surrounded, the steel arch frame connector includes opposed
First surrounds section and the second encirclement section, and the described first the first inner wall for surrounding section abuts the U-shaped steel arch unit of top
At least part of top surface, first inner wall are equipped with protrusion, and the protrusion is equipped with cam, the outer rim of the cam
With the recess portion inner surface sliding contact of the U-shaped steel arch unit, the described second the second inner wall for surrounding section abuts the institute of lower section
At least part of bottom surface of U-shaped steel arch unit is stated, described first, which surrounds section and described second, surrounds between section equipped with fastening
Part realizes clamping and connection of the arch connector to the adjacent steel arch-shelf unit by adjusting the fastener；
Foam concrete block is longitudinally performed along tunnel as deformation block, is equipped in the foam concrete block perpendicular to compression direction
Three-dimensional glass fibrous interlayer；
To tunnel inner wall gunite concrete spray-up, when tunnel, extrusion deformation circumferentially reaches setting value, the cam and institute
The radius of curvature for stating inner surface contact direction turns to maximum position, and holds out against the recess portion inner surface of the U-shaped steel arch unit
Continue to relatively move between the U-shaped steel arch unit to limit.
2. the first lining process according to claim 1 suitable for large deformation tunnel, which is characterized in that further include carrying out anchor pole
Supporting, and spray just pneumatically placed concrete layer to exposed country rock, spray the just pneumatically placed concrete layer with a thickness of 5-10cm.
3. the first lining process according to claim 1 suitable for large deformation tunnel, which is characterized in that install adjacent described
The spacing of annular steel arch-shelf is controlled in 0.5-1.0m.
4. the first lining process according to claim 1 suitable for large deformation tunnel, which is characterized in that perform the deformation block
When, the deformation block with a thickness of 5-30cm.
5. the first lining process according to claim 1 suitable for large deformation tunnel, which is characterized in that sprayed to tunnel inner wall
When the concrete spray coating, the annular steel arch-shelf and the deformation block are avoided.
6. the first lining process according to claim 1 suitable for large deformation tunnel, which is characterized in that when tunnel circumferentially
When extrusion deformation reaches the setting value, emphasis is directed at the tie point of the U-shaped steel arch unit and carries out injection coagulation
The multiple spray of soil.
7. a kind of first lining structure suitable for large deformation tunnel, which is characterized in that including annular steel arch-shelf, deformation block and concrete
Spray-up, in which:
The annular steel arch-shelf is circumferentially spliced by several U-shaped steel arch units, and the adjacent U-shaped steel arch unit exists
It is stacked at tie point, is equipped with steel arch frame connector what the stacked place surrounded, the steel arch frame connector includes opposed the
One surrounds section and the second encirclement section, and the described first the first inner wall for surrounding section abuts the U-shaped steel arch unit of top extremely
Least a portion of top surface, first inner wall be equipped with protrusion, the protrusion be equipped with cam, the outer rim of the cam with
The recess portion inner surface sliding contact of the U-shaped steel arch unit, the described second the second inner wall for surrounding section abut the U of lower section
At least part of bottom surface of shaped steel arch unit is equipped with fastener between the first encirclement section and the second encirclement section,
Clamping and connection of the arch connector to the adjacent steel arch-shelf unit are realized by adjusting the fastener；
The deformation block is foam concrete block, and the three-dimensional glass fibre perpendicular to compression direction is equipped in the foam concrete block
Tie up interlayer；
The concrete spray coating is filled in its complementary space that tunnel just serves as a contrast；
When tunnel, extrusion deformation circumferentially reaches setting value, the radius of curvature of the cam and inner surface contact direction
Turn to maximum position, and hold out against the recess portion inner surface of the U-shaped steel arch unit to limit the U-shaped steel arch unit it
Between continue to relatively move.
8. the first lining structure according to claim 7 suitable for large deformation tunnel, which is characterized in that the just lining structure is also
Including suspension roof support structure, and the first pneumatically placed concrete layer on the inside of the annular steel arch-shelf, deformation block and concrete spray coating.
9. the first lining structure according to claim 7 suitable for large deformation tunnel, which is characterized in that the steel arch-shelf connection
Part is located near the deformation block.
10. the first lining structure according to claim 7 suitable for large deformation tunnel, which is characterized in that the adjacent steel
It is connected jointly between arch unit by multiple steel arch frame connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810512283.6A CN108678770B (en) | 2018-05-25 | 2018-05-25 | A kind of first lining process and structure suitable for large deformation tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810512283.6A CN108678770B (en) | 2018-05-25 | 2018-05-25 | A kind of first lining process and structure suitable for large deformation tunnel |
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| CN108678770A CN108678770A (en) | 2018-10-19 |
| CN108678770B true CN108678770B (en) | 2019-05-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109973124B (en) * | 2019-03-29 | 2024-06-25 | 中国科学院武汉岩土力学研究所 | Tension-compression conversion constant-resistance yielding device |
| CN111305875A (en) * | 2020-03-02 | 2020-06-19 | 重庆交通大学 | Foam concrete yielding support structure for extruded large-deformation tunnel and construction method |
| CN111550267B (en) * | 2020-05-26 | 2021-04-30 | 中山大学 | Tunnel primary support structure and construction method |
| CN112377220B (en) * | 2020-11-30 | 2022-09-06 | 华侨大学 | Deformation control device for tunnel with ultra-large section and use method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8504678D0 (en) * | 1985-02-22 | 1985-03-27 | Hilton Mining Ltd | Underground roadway support |
| CN202176337U (en) * | 2011-07-04 | 2012-03-28 | 湖南五新重型装备有限公司 | Control system of tunnel lining trolley |
| CN102322277B (en) * | 2011-07-22 | 2013-11-06 | 山东大学 | Preliminary lining construction device and method for underground engineering model test |
| CN104047610B (en) * | 2014-05-30 | 2017-06-16 | 甘肃省交通规划勘察设计院有限责任公司 | Composite lining structure |
| CN207018005U (en) * | 2017-03-16 | 2018-02-16 | 中铁二院工程集团有限责任公司 | It is a kind of to be applied to the tunnel quickly flexible support system in reparation and large deformation tunnel |
| CN107780951B (en) * | 2017-11-01 | 2024-03-01 | 中交第一公路勘察设计研究院有限公司 | High-ground-stress soft rock large-deformation primary support system |
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