CN104481550A - Tunnel collapse treatment advance support method - Google Patents
Tunnel collapse treatment advance support method Download PDFInfo
- Publication number
- CN104481550A CN104481550A CN201410569061.XA CN201410569061A CN104481550A CN 104481550 A CN104481550 A CN 104481550A CN 201410569061 A CN201410569061 A CN 201410569061A CN 104481550 A CN104481550 A CN 104481550A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- self
- support method
- pipe shed
- pipe canopy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 18
- 238000009412 basement excavation Methods 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims 1
- 210000004080 milk Anatomy 0.000 claims 1
- 235000013336 milk Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 235000019994 cava Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Classifications
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- 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
-
- 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
- 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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a tunnel collapse treatment advance support method. The tunnel collapse treatment advance support method is implemented by combining an advance large-pipe shed and self-drilling anchor bolts as well as combining clearance limit exceeding positions of long-distance grouting of the large-pipe shed and short-distance grouting of the self-drilling anchor bolts and comprises the following steps of, firstly, setting up an operating platform with scaffolds instead of guide walls, and determining the driving angle and position of the pipe shed into rock by adjusting the connecting height of the scaffolds and supports under an equipment rail; secondly, setting the large-pipe shed along an arch 90-degree scope, and allowing the end portions of the large-pipe shed to exceed the clearance limit during construction; thirdly, arranging the advance self-drilling anchor rods at intervals in the circumferential direction of the pipe shed, and after tunnel collapse is holed, performing clearance limit exceeding position treatment through the self-drilling anchor bolts. The tunnel collapse treatment advance support method achieves a wide grouting range, has the advantages of strong support and short excavation, saves the collapse treatment cost, saves the construction schedule and has high application values.
Description
Technical field
The inventive method relates to Tunnel Landslide process advance support, particularly relates to the process occurring caving in after tunnel holing through.
Background technology
In daguanpeng construction process, be usually divided into have service depot with without two kinds, service depot.Have service depot first to set up meet machinery and avoid pipe canopy to invade the working space of limit, this working space generally outwards expands 50-80cm along tunnel excavation outline line, arranges the wall that leads together, for controlling steel tube shed angle and direction in Guan Peng termination.It is a kind of new technology utilizing Tunnel Design excavation space to carry out advance support without service depot's super-front large pipe shed.This service depot is 40cm in Tunnel Design excavation contour line, installs, finally for invading limit position, adopting pipe canopy propeller to invade and limitting section pipe canopy to be advanced into outside Tunnel Design excavation contour line by the outer limb perforate of design line pipe canopy boring of going forward side by side.
After Tunnel Landslide occurs in tunnel holing through, excavation and the supporting in tunnel complete all, now daguanpeng construction is without service depot, in such cases, can only take without service depot's construction technique of big pipe shed, but adopt pipe canopy propeller not only to expand construction cost, extend construction period simultaneously, comparatively unfavorable for sump remedy.
Summary of the invention
Patent of the present invention is intended to solve the problem, and provides a kind of Tunnel Landslide process advanced support method.The present invention can ensure to carry out advance support, for follow-up sump remedy provides safe and reliable construction environment to landslide body fast and efficiently.
The present invention is made up of following implementation step: step one, cancels guiding wall, adopts scaffold building operating platform, to be connected highly to determine that pipe canopy squeezes into angle, the position of rock mass by adjustment scaffold with equipment rail supported underneath place; Step 2, along arch, 90 ° of scopes arrange steel tube shed, allow position, termination to invade limit in work progress; Step 3, arranges advanced self-feeding anchor pile between pipe canopy hoop, after sump remedy is through, adopts self-feeding anchor pile to carry out invading the process of limit position.
The present invention changes and adopts pipe canopy propeller to be advanced into method outside Tunnel Design excavation contour line by invading limit section pipe canopy in the past, change the supporting method adopting steel tube shed to combine with advanced self-feeding anchor pile into, the long distance slip casting of steel tube shed is invaded extreme position with self-feeding anchor pile short distance injecting treatment and is combined, make range of grouting wide, save sump remedy cost, save the duration etc., embody strong supporting, the feature of short excavation, good effect is played to landslide body wall rock grouting effect, country rock is made to have certain self-stable ability, for follow-up sump remedy excavation supporting provides safety assurance.Efficiently solve without under service depot's state, utilize Tunnel Design excavation space to carry out the construction of steel tube shed advance support and cause termination to invade the situation of limit.
Operating procedure of the present invention is simple, practical, overcome without under service depot's state, in tunnel, daguanpeng construction causes a difficult problem of invading limit, optimize working procedure, save construction cost, shorten the construction period, simultaneously long and short distance slip casting combine make range of grouting wide, be evenly distributed, not only embody strong supporting, the feature of short excavation, plays good effect to landslide body wall rock grouting effect, makes country rock have certain self-stable ability, for follow-up sump remedy excavation supporting provides safety assurance, there is higher using value.
Detailed description of the invention
The present invention is made up of following implementation step:
Step one, because the construction of guiding wall is very consuming time, determine to cancel guiding wall, adopt scaffold building operating platform, drilling equipment is positioned on platform; To be connected with equipment rail supported underneath place by adjustment scaffold and highly to determine that pipe canopy squeezes into angle, the position of rock mass; Equipment and scaffold is needed reliably to fix behind accurate location.
Step 2,40cm in Tunnel Design excavation contour line, by design outer limb perforate go forward side by side line pipe canopy boring installation, steel tube shed length 12 ~ 20m(can determine by landslide scope length), reduce steel tube shed radical, along arch, 90 ° of scopes arrange 10 ~ 15 pipe canopies, reduce the subsequent treatment engineering quantity cavity depths that deeply caves in and carry out injecting treatment;
Step 3, arranges advanced self-feeding anchor pile between pipe canopy hoop, length 1.2 ~ 2.5m; Carry out short distance grouting and reinforcing by self-feeding anchor pile, process simultaneously cause because of above-mentioned daguanpeng construction invade extreme position.
Application example:
Certain project tunnel is two-way Four-Lane Road small-clear-distance tunnel, and preliminary bracing construction has occurred arch landslide after complete 18 days, and landslide section edpth of tunnel is about 58.6-68.0m, hole, left and right spacing is 29.5m, landslide length is about 40m, and estimate height about the 20m that caves in, about 10000m is measured in landslide
3left and right.Jetting cement when starting that caves in peels off, supporting type steel arch-shelf torsional deformation, and follow-up caving in expands further, and landslide body is filled with the whole band that stops in emergency.Carry out the process of landslide advance support through the inventive method, obtain good result.Specific as follows:
Step one: by scaffold building operating platform, drilling equipment is positioned on platform; Adjustment scaffold is connected with equipment rail supported underneath place highly determines that pipe canopy squeezes into angle, the position of rock mass; Equipment and scaffold is needed reliably to fix behind accurate location.
Step 2: 40cm in Tunnel Design excavation contour line, by design outer limb perforate go forward side by side line pipe canopy boring installation, steel tube shed length 12m, along arch, 90 ° of scopes arrange 13 pipe canopies.
Step 3: between pipe canopy hoop, advanced self-feeding anchor pile is set, length 1.5m; Carry out short distance grouting and reinforcing by self-feeding anchor pile, process simultaneously cause because of above-mentioned daguanpeng construction invade extreme position.
Claims (3)
1. a Tunnel Landslide process advanced support method, is characterized in that: comprising:
Step one, cancels guiding wall, takes scene to the accurate setting-out of rig to control the angle direction of steel tube shed; Specific as follows:
Adopt scaffold building operating platform, drilling equipment is positioned on platform; To be connected with equipment rail supported underneath place by adjustment scaffold and highly to determine that pipe canopy squeezes into angle, the position of rock mass; Equipment and scaffold is needed reliably to fix behind accurate location;
Step 2,40cm in Tunnel Design excavation contour line, install by the outer limb perforate of design line pipe canopy boring of going forward side by side, steel tube shed length can be determined by the scope length of caving in, and along arch, 90 ° of scopes arrange 10 ~ 15 pipe canopies;
Step 3, arranges advanced self-feeding anchor pile between pipe canopy hoop, length 1.2 ~ 2.5m; Carry out short distance grouting and reinforcing by self-feeding anchor pile, the extreme position of invading caused is in the milk simultaneously because of above-mentioned daguanpeng construction.
2. Tunnel Landslide process advanced support method according to claim 1, is characterized in that, determine pipe canopy radical and set scope in described step 2 according to tunnel clearance size, determine pipe canopy length according to landslide scope and support process.
3. Tunnel Landslide process advanced support method according to claim 1, is characterized in that, described step 3 can cause invading extreme position size according to daguanpeng construction angle and rock crusher degree determination anchor pole sets density and length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569061.XA CN104481550A (en) | 2014-10-23 | 2014-10-23 | Tunnel collapse treatment advance support method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569061.XA CN104481550A (en) | 2014-10-23 | 2014-10-23 | Tunnel collapse treatment advance support method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104481550A true CN104481550A (en) | 2015-04-01 |
Family
ID=52756142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410569061.XA Pending CN104481550A (en) | 2014-10-23 | 2014-10-23 | Tunnel collapse treatment advance support method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104481550A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499423A (en) * | 2016-11-23 | 2017-03-15 | 中铁十八局集团有限公司 | A kind of reverse daguanpeng construction method in tunnel construction |
| CN106801612A (en) * | 2017-02-28 | 2017-06-06 | 中铁建大桥工程局集团第五工程有限公司 | A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method |
| CN107060778A (en) * | 2017-06-15 | 2017-08-18 | 中铁十局集团第五工程有限公司 | Pass through high-rise building group back filled region method for tunnel construction |
| CN108457658A (en) * | 2018-03-14 | 2018-08-28 | 济南城建集团有限公司 | A kind of texture stratum tunnel list hole bidirectional construction crosses section constructing method |
| CN109026031A (en) * | 2018-06-26 | 2018-12-18 | 中铁建大桥工程局集团第五工程有限公司 | A kind of macroseism after gas Tunnel Landslide section reconstruction construction method |
| CN110067573A (en) * | 2019-04-26 | 2019-07-30 | 西和县中宝矿业有限公司 | A kind of quick improvement and the construction method for passing through the crushed zone that caved in |
| CN112031813A (en) * | 2020-09-08 | 2020-12-04 | 中交一公局第一工程有限公司 | Construction method for penetrating through clay loose tunnel collapsed body |
| CN113187498A (en) * | 2021-05-13 | 2021-07-30 | 中铁十六局集团第二工程有限公司 | TBM tunnel collapsed cavity backfilling and advanced pipe shed construction method |
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2014
- 2014-10-23 CN CN201410569061.XA patent/CN104481550A/en active Pending
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499423A (en) * | 2016-11-23 | 2017-03-15 | 中铁十八局集团有限公司 | A kind of reverse daguanpeng construction method in tunnel construction |
| CN106801612A (en) * | 2017-02-28 | 2017-06-06 | 中铁建大桥工程局集团第五工程有限公司 | A kind of T76S high intensity self-drilling type barrel vault advanced support engineering method |
| CN107060778A (en) * | 2017-06-15 | 2017-08-18 | 中铁十局集团第五工程有限公司 | Pass through high-rise building group back filled region method for tunnel construction |
| CN108457658A (en) * | 2018-03-14 | 2018-08-28 | 济南城建集团有限公司 | A kind of texture stratum tunnel list hole bidirectional construction crosses section constructing method |
| CN109026031A (en) * | 2018-06-26 | 2018-12-18 | 中铁建大桥工程局集团第五工程有限公司 | A kind of macroseism after gas Tunnel Landslide section reconstruction construction method |
| CN110067573A (en) * | 2019-04-26 | 2019-07-30 | 西和县中宝矿业有限公司 | A kind of quick improvement and the construction method for passing through the crushed zone that caved in |
| CN112031813A (en) * | 2020-09-08 | 2020-12-04 | 中交一公局第一工程有限公司 | Construction method for penetrating through clay loose tunnel collapsed body |
| CN113187498A (en) * | 2021-05-13 | 2021-07-30 | 中铁十六局集团第二工程有限公司 | TBM tunnel collapsed cavity backfilling and advanced pipe shed construction method |
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Application publication date: 20150401 |