CN108756932A - A kind of method for tunnel construction of new supporting structure - Google Patents
A kind of method for tunnel construction of new supporting structure Download PDFInfo
- Publication number
- CN108756932A CN108756932A CN201810731424.3A CN201810731424A CN108756932A CN 108756932 A CN108756932 A CN 108756932A CN 201810731424 A CN201810731424 A CN 201810731424A CN 108756932 A CN108756932 A CN 108756932A
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- permanent
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000011435 rock Substances 0.000 claims abstract description 19
- 238000009412 basement excavation Methods 0.000 claims abstract description 18
- 230000010410 reperfusion Effects 0.000 claims abstract description 9
- 239000011440 grout Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 230000002262 irrigation Effects 0.000 claims description 2
- 238000003973 irrigation Methods 0.000 claims description 2
- 230000005641 tunneling Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying 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
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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (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 method for tunnel construction of new supporting structure, and segmented excavation is carried out to tunnel using benching tunnelling method or partial excavation method；First branch：In the permanent side of the first branch from wall assembly permanent support structure, from wall assembly temporary support structures and fixation is supported to permanent support structure in its interim side；The reperfusion serosity between permanent support structure and country rock；Second branch：After the grout cures of the first branch and supporting construction are stablized, the second partial excavation work of this section is carried out, after being excavated to the length of the first branch, the construction of the first branch is repeated, recycles the branch until last, remove temporary support structures, apply secondary lining；Next section of tunnel is excavated again after completing this section construction, until the completion in entire tunnel.The method of the present invention, supporting construction are the features such as quick construction, precision are high, mechanization is high, rigidity is big, intensity is high from wall assembled structure, solve the problems, such as to cause assembled difficulty because structure stress leads to deformation.
Description
Technical field
The invention belongs to Construction Technique of Underground Works fields, specifically, are related to a kind of tunnel of new supporting structure and apply
Work method.
Background technology
With the rapid development of the national economy, being carried forward vigorously by the infrastructure construction of representative of traffic engineering, tunnel
The quantity of road engineering is continuously increased.The Tunnel Engineering of complex condition will not only ensure the stabilization of itself, while need to meet week
The indexs such as the requirement of surrounding environment, such as deformation, stress incrementss will control in specific range of values, similar to require to constructing tunnel
More stringent requirements are proposed for method and support system.
At this stage, for the good large cross-section tunnel of formation condition, often using the method for full face tunneling；For stratum item
The large cross-section tunnel of part difference often uses benching tunnelling method or partial excavation method (two side-wall pilot tunnel etc.).Support system is led at present
Will be based on composite lining, preliminary bracing is often mixed by the one or several kinds in bar-mat reinforcement, anchor pole, steelframe three with injection
Solidifying local soil type is at secondary lining lays waterproof layer between the two by the way of being molded into armored concrete.Combined type is served as a contrast
It builds, the means for controlling deformation rely primarily on preliminary bracing, are realized by spraying fast setting concrete, increasing support rigidity in time.
But it is substantially subjected to the age growth time of gunite concrete, the restriction that steelframe sets up the time, sprays the Multiple factors such as concrete time, nothing
Method achievees the purpose that prevent surrouding rock deformation in a short time, be answered to be difficult to generation or existing construction of structures that effectively control deforms
The growth of power.It constructs influence to surrounding enviroment to reduce large cross-section tunnel, ensures the safety of surrounding enviroment, in particular by
The large cross-section tunnel of benching tunnelling method or partial excavation method needs to research and develop corresponding novel construction method, is allowed to carry in time, effectively controls
System deformation.
Invention content
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of constructing tunnel sides of new supporting structure
Method, supporting construction are being solved by slip casting transmission pressure from surrounding rock because structure stress causes to become from wall-like structure for precast assembly
Shape and the problem for causing supporting construction assembled difficult.
What the object of the invention was realized in：A kind of method for tunnel construction of new supporting structure, carries out according to the following steps：
(1) benching tunnelling method or partial excavation method is used to carry out segmented excavation to tunnel；
(2) the first branch of every section of tunnel excavation：After being excavated to a segment length, in the permanent side of the first branch from wall assembly
Permanent support structure from wall assembly temporary support structures and is supported permanent support structure solid in the interim side of the first branch
It is fixed；Then the reperfusion serosity between permanent support structure and country rock；
(3) the second branch of every section of tunnel excavation：After the grout cures of the first branch and supporting construction are stablized, it is somebody's turn to do
Section the second partial excavation work, after being excavated to the length of the first branch, equally the permanent side of the second branch forever from wall assembly
Long supporting construction is supported fixation from wall assembly temporary support structures in the interim side of the second branch to permanent support structure,
Then the reperfusion serosity between permanent support structure and country rock；So cycle is up to last branch, finally forever by each branch
After long supporting construction is spliced into stable overall structure, temporary support structures are removed, secondary lining is applied；If without adjacent in branch
Permanent side, then be not necessarily to set up permanent support structure and temporary support structures, directly excavation also may be used.
(4) it completes to excavate after this section construction the next section of tunnel subdivision portion rapid (2) and (3) that lays equal stress on again to construct, up to whole
The completion in a tunnel.
Further, above-mentioned permanent support structure and temporary support structures are all made of corrugated steel, steel plate or ribbing steel plate
It is spliced.The supporting intensity of steel plate is high, can effectively meet the supporting role to country rock.
Further, the equal encapsulation process of seam crossing of above-mentioned permanent support structure and face.Prevent seam crossing spillage.
Further, the seam between above-mentioned permanent support structure assembly block is sealed by rubber water-proof item.Prevent seam
Locate spillage.
Further, above-mentioned temporary support structures and the junction of permanent support structure are fixed using bayonet joint.It can
Realize the fast quick-detach of temporary support structures and the repeatable purpose utilized
Further, it while permanent lateral irrigation injection slurry, is filled by water pocket between the temporary support structures and country rock
Beam body, and pressure from surrounding rock is transmitted by water pocket.Further realize interim transmission of the interim side to pressure from surrounding rock, while into
Ensure to one step that temporary support structures being capable of fast quick-detach and repeatable utilization in the later stage.
Preferably, above-mentioned fluid uses water or hydraulic oil.
Further, above-mentioned slurries use the slurries of characteristic solidifying with microdilatancy and soon.
Advantageous effect：
A kind of method for tunnel construction of new supporting structure of the present invention, supporting construction are precast assembly from wall-like structure,
The features such as quick construction, precision are high, mechanization degree is high, rigidity is big, intensity is high solves and draws because structure stress leads to deformation
Play the assembled difficult problem of supporting construction；Permanent support structure back-grouting reaches supporting construction carrying in time and control deformation
Purpose；Temporary support structures transmit pressure from surrounding rock by the way that fluid is perfused, and achieve the purpose that fast quick-detach and repeat to utilize.
Description of the drawings
Fig. 1 is the application drawing of benching tunnelling method constructing tunnel in the method for the present invention；
Fig. 2 is the application drawing of two side-wall pilot tunnel constructing tunnel in the method for the present invention；
Fig. 3 is the application drawing of tunneling boring constructing tunnel in the present invention；
Wherein 1 it is permanent support structure, 2 be grouting layer, 3 be rock stratum, 4 be secondary lining layer, 5 is temporary support structures.
Specific implementation mode
With reference to embodiment and attached drawing, the invention will be further described.
Embodiment 1：
Using benching tunnelling method constructing tunnel as example, as shown in Figure 1, each construction procedure specifically presses following procedure：
(1) excavating sequences, branch's size, the longitudinal single drilling depth of large cross-section tunnel are determined：Be divided into from top to bottom 1., 2. and
3. three branches, and sequentially excavate；
(2) specific branch is excavated 1. to design advanced depth；
(3) permanent side is from wall assembly corrugated steel as permanent support structure, while the seam crossing between corrugated steel is pacified
Trapezoidal rubber water-proof item is filled, and is fixed, in the bottom of branch 1. from wall assembly temporary support structures；And in gib knot
Place water pocket in the behind of structure；
(4) bolt is tightened, makes to reach design pretightning force between corrugated steel；
(5) end closed at face to corrugated steel is closed；
(6) reperfusion serosity between permanent support structure and country rock carries out water filling to the water pocket of temporary support structures behind；
(7) after grout cures, plug of dismantling carries out the excavation and support work of branch 2., and so cycle is until branch
3. construction finishes；
(8) temporary support is removed, secondary lining is applied, completes this section of constructing tunnel, then excavate next section of tunnel again simultaneously
It repeats branch 1., 2. and 3. to construct, until the completion in entire tunnel.
Embodiment 2：
Using two side-wall pilot tunnel constructing tunnel as example, as shown in Fig. 2, each construction procedure specifically presses following procedure：
(1) excavating sequences, branch's size, the longitudinal single drilling depth of large cross-section tunnel are determined：Be divided into from top to bottom 1., 2.,
3., 4., 5., 6., 7., 8. and 9. nine branches, and sequentially excavate；
(2) branch's base tunnel 1. and 2. is excavated to designing advanced depth；
(3) to branch 1. and 2. the permanent side on the left side from wall assembly corrugated steel and as permanent support structure, while
Seam crossing between corrugated steel installs trapezoidal rubber water-proof item, and is fixed, branch 1. and 2. the interim side on the right from wall
Assembled temporary support structures；Place water pocket in the behind of temporary support structures；Bolt is tightened, makes to reach design in advance between corrugated steel
Clamp force；It closes the end that corrugated steel is closed at face；
(4) branch's base tunnel 3. and 4. is excavated to designing advanced depth；
(5) to branch 3. and 4. the permanent side on the right from wall assembly corrugated steel and as permanent support structure, while
Seam crossing between corrugated steel installs trapezoidal rubber water-proof item, and is fixed, branch 3. and 4. the interim side on the left side from wall
Assembled temporary support structures；Place water pocket in the behind of temporary support structures；Bolt is tightened, makes to reach design in advance between corrugated steel
Clamp force；It closes the end that corrugated steel is closed at face；
(6) according to principle symmetrical, being successively perfused, branch 1. and 2., the permanent support structure of branch 3. and 4.
The reperfusion serosity between country rock, while water filling is carried out to the water pocket of its temporary support structures behind；
(8) after grout cures, plug of dismantling carries out the excavation of branch 5., and forever from wall assembly to the permanent side at top
Long supporting construction forms entirety, then the reperfusion serosity between permanent support structure and country rock with existing supporting construction, waits for supporting
After stable structure, branch is excavated 6., 7., 8. and 9. downwards successively；
(9) temporary support structures are removed, secondary lining is applied, completes this section of constructing tunnel, then excavate next section of tunnel again
1., 2., 3., 4., 5., 6., 7., 8. and 9. the road subdivision portion that lays equal stress on constructs, cycle construction until entire tunnel completion.
Embodiment 3
As shown in Figure 3：For tunneling boring method for tunnel construction, after one section of tunnel piercing, you can from the assembled entirety of wall
Permanent support structure carries out seal processing, then the reperfusion serosity between permanent support structure and country rock, after grout cures
Secondary lining is applied, then applies next section of tunnel so cycle until the completion of entire tunnel, the construction method in tunneling boring tunnel
It is relatively more simple and convenient.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make table as multiple types
Show, such as 3 tunneling boring constructing tunnel of embodiment, such transformation is each fallen within protection scope of the present invention.
Claims (8)
1. a kind of method for tunnel construction of new supporting structure, it is characterised in that carry out according to the following steps：
(1) benching tunnelling method or partial excavation method is used to carry out segmented excavation to tunnel；
(2) the first branch of every section of tunnel excavation：It is assembled from wall permanent in the permanent side of the first branch after being excavated to a segment length
Supporting construction from wall assembly temporary support structures and is supported fixation in the interim side of the first branch to permanent support structure；
Then the reperfusion serosity between permanent support structure and country rock；
(3) the second branch of every section of tunnel excavation：After the grout cures of the first branch and supporting construction are stablized, this section is carried out
Second partial excavation works, after being excavated to the length of the first branch, equally in the permanent side of the second branch permanent branch assembled from wall
Protection structure is supported fixation, then from wall assembly temporary support structures in the interim side of the second branch to permanent support structure
The reperfusion serosity between permanent support structure and country rock；So cycle is up to last branch, finally by the permanent branch of each branch
After protection structure is spliced into stable overall structure, temporary support structures are removed, secondary lining is applied；
(4) it completes to excavate after this section construction the next section of tunnel subdivision portion rapid (2) and (3) that lays equal stress on again to construct, up to entire tunnel
The completion in road.
2. a kind of method for tunnel construction of new supporting structure according to claim 1, it is characterised in that：The permanent branch
Protection structure and temporary support structures are all made of corrugated steel, steel plate or ribbing steel plate splicing and form.
3. a kind of method for tunnel construction of new supporting structure according to claim 1, it is characterised in that：The permanent branch
The equal encapsulation process of the seam crossing of protection structure and face.
4. a kind of method for tunnel construction of new supporting structure according to claim 1, it is characterised in that：The permanent branch
Seam between protection structure assembly block is sealed by rubber water-proof item.
5. a kind of method for tunnel construction of new supporting structure according to claim 1, it is characterised in that：The interim branch
Protection structure and the junction of permanent support structure are fixed using bayonet joint.
6. a kind of method for tunnel construction of new supporting structure according to claim 1, it is characterised in that：In permanent lateral irrigation
While injection slurry, fluid is perfused by water pocket between the temporary support structures and country rock, and country rock pressure is transmitted by water pocket
Power.
7. a kind of method for tunnel construction of new supporting structure according to claim 6, it is characterised in that：The fluid is adopted
With water or hydraulic oil.
8. a kind of method for tunnel construction of new supporting structure according to claim 1, it is characterised in that：The slurries are adopted
With the slurries of characteristic solidifying with microdilatancy and soon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731424.3A CN108756932B (en) | 2018-07-05 | 2018-07-05 | Tunnel construction method comprising supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731424.3A CN108756932B (en) | 2018-07-05 | 2018-07-05 | Tunnel construction method comprising supporting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108756932A true CN108756932A (en) | 2018-11-06 |
| CN108756932B CN108756932B (en) | 2020-04-21 |
Family
ID=63972242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810731424.3A Expired - Fee Related CN108756932B (en) | 2018-07-05 | 2018-07-05 | Tunnel construction method comprising supporting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN108756932B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882207A (en) * | 2019-03-28 | 2019-06-14 | 中铁十六局集团第一工程有限公司 | The interim horizontal support in double -side approach tunnel, support device and its assembly, method for dismounting |
| CN110761805A (en) * | 2019-07-31 | 2020-02-07 | 西南交通大学 | Quick advance support construction device for tunnel |
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| CN102226399A (en) * | 2011-06-02 | 2011-10-26 | 中铁二院工程集团有限责任公司 | Soft rock four-line large-span tunnel three-bench cable-bracing excavation construction method |
| KR20120014283A (en) * | 2010-08-09 | 2012-02-17 | (주)현이앤씨 | Method of grouting by double packer in pre-stressed tunnel and hydrauric type automatic inserting device for linear member |
| CN102562077A (en) * | 2011-12-23 | 2012-07-11 | 中铁二局股份有限公司 | Excavation construction method of frame tunnel penetrating special structure at lower portion |
| CN102733827A (en) * | 2012-06-29 | 2012-10-17 | 湖南省交通规划勘察设计院 | Tunnel arch exchanging construction method and construction structure in tunnel arch exchanging construction |
| CN108019210A (en) * | 2017-12-12 | 2018-05-11 | 宁波市交通规划设计研究院有限公司 | A kind of Shallow-buried Large-span Tunnel construction method suitable for upper soft lower hard compound stratum |
-
2018
- 2018-07-05 CN CN201810731424.3A patent/CN108756932B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120014283A (en) * | 2010-08-09 | 2012-02-17 | (주)현이앤씨 | Method of grouting by double packer in pre-stressed tunnel and hydrauric type automatic inserting device for linear member |
| CN102226399A (en) * | 2011-06-02 | 2011-10-26 | 中铁二院工程集团有限责任公司 | Soft rock four-line large-span tunnel three-bench cable-bracing excavation construction method |
| CN102562077A (en) * | 2011-12-23 | 2012-07-11 | 中铁二局股份有限公司 | Excavation construction method of frame tunnel penetrating special structure at lower portion |
| CN102733827A (en) * | 2012-06-29 | 2012-10-17 | 湖南省交通规划勘察设计院 | Tunnel arch exchanging construction method and construction structure in tunnel arch exchanging construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882207A (en) * | 2019-03-28 | 2019-06-14 | 中铁十六局集团第一工程有限公司 | The interim horizontal support in double -side approach tunnel, support device and its assembly, method for dismounting |
| CN109882207B (en) * | 2019-03-28 | 2024-06-14 | 中铁十六局集团第一工程有限公司 | Temporary transverse support and support device for double-side-wall pilot tunnel and assembling and disassembling method thereof |
| CN110761805A (en) * | 2019-07-31 | 2020-02-07 | 西南交通大学 | Quick advance support construction device for tunnel |
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| CN108756932B (en) | 2020-04-21 |
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