CN107191198A - The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes - Google Patents
The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes Download PDFInfo
- Publication number
- CN107191198A CN107191198A CN201710216531.8A CN201710216531A CN107191198A CN 107191198 A CN107191198 A CN 107191198A CN 201710216531 A CN201710216531 A CN 201710216531A CN 107191198 A CN107191198 A CN 107191198A
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- Prior art keywords
- cast
- oriented
- wall
- situ bored
- bored pile
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001629 suppression Effects 0.000 title claims abstract description 7
- 238000011065 in-situ storage Methods 0.000 claims abstract description 20
- 238000005266 casting Methods 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 9
- 239000002689 soil Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000007926 Craterellus fallax Nutrition 0.000 description 1
- 240000007175 Datura inoxia Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003014 reinforcing effect 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
- E21D11/04—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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes, including Guan Liang（1）, be oriented to wall（2）, cast-in-situ bored pile（3）And support beam（4）, it is characterised in that：Cast-in-situ bored pile（3）By along line direction and horizontal path direction Fen Lie both sides, pass through Guan Liang respectively（1）It is attached, support beam is passed through along line direction Guan Liang（4）Support top is carried out, the left and right sides at firm slide-resistant system, two cast-in-situ bored pile point dark hole imports in row tunnel is formed, is oriented to wall and is seated in above cast-in-situ bored pile, and one-piece casting, effectively prevent from being oriented to the sinking of wall, improve the compression strength for being oriented to wall.
Description
Technical field
The present invention relates to a kind of retaining structure of the horizontal creep of suppression tunnel light and shade hole intersection slopes and method, especially fit
For tunnel in unstable slope location start tunneling.
Background technology
In mining method construction, the construction of tunnel portal section penumbra is always emphasis, the difficult point of Tunnel Engineering, its
Main cause has orographic factor and geologic(al) factor.It is that lateral slope of ground is significantly tilted because hole top typically covers relatively thin in landform；Ground
In matter, wall rock geology is often very poor at tunnel entrance, and such as country rock is inclination layer structure, interlayer breast knot power is poor, saved with harmful
Manage crack cutting, or barrel has a steeper weak structural face in inclination angle, a country rock part is softer, a part of harder person when, excavating
When the accident such as easily bias, come down, caving in.Under such background condition, prevention and improvement Support System in Soft Rock Tunnels light and shade are handed over
Excessive deformation is even caved at boundary, landslide is particularly important.Therefore, tunnel construction persons are in long-term theoretical research and engineering
Some preventions have been summed up in practice and the engineering measure of Support System in Soft Rock Tunnels penumbra excessive deformation is administered, one is achieved
A little significantly achievements, such as grouting and reinforcing weak surrounding rock body, improve country rock physico mechanical characteristic；Improve preliminary bracing rigidity；Set
Super-front large pipe shed；Set up long anchor pole and lock pin anchor tube etc.；Fender post preventing and treating landslide is being set close to massif side.But lateral
Have creep risk weak surrounding rock stratum, existing various supporting structure systems and construction method application difficulty are very big, its excavate with
The difficulty of supporting is considerably beyond common tunnel.When setting fender post close to massif side, in the preferable country rock of condition
Landslide disaster can be effectively prevented and treated, but in the case of weak surrounding rock complex formation, particularly weakness of the underground water compared with horn of plenty
In breaking surrounding rock, even if fender post can prevent and treat the landslide of massif side, but when main tunnel is constructed, because stratum is relatively thin, country rock without
Method formation load-carrying ring；Rich groundwater, pneumatically placed concrete is difficult to meet construction requirement, causes preliminary bracing to be not enough to undertake country rock side
Pressure and slid under slope.
The content of the invention
Suppress tunnel light and shade hole intersection slopes transverse direction there is provided one kind to solve the weak point in above-mentioned background technology
The retaining structure and method of creep, can effectively reduce the risk of the surface subsidence during tunnel excavation, improve the peace of construction
The stability of full property and structure.
Realize the present invention and the technical scheme that uses for：
The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes, including Guan Liang（1）, be oriented to wall
（2）, cast-in-situ bored pile（3）And support beam（4）, it is characterised in that：Cast-in-situ bored pile（3）By along line direction and horizontal path side
To a point row both sides, pass through Guan Liang respectively（1）It is attached, support beam is passed through along line direction Guan Liang（4）Support top is carried out, forms steady
Solid slide-resistant system, the left and right sides at two cast-in-situ bored piles point dark hole imports in row tunnel is oriented to wall and is seated in cast-in-situ bored pile
Top, and one-piece casting, effectively prevent from being oriented to the sinking of wall, improve the compression strength for being oriented to wall.
Compared with existing structure and method, this structure and method have the advantage that as follows with effect：
1. the present invention is intended to clear and definite, cast-in-situ bored pile in terms of protection（3）Pass through Guan Liang（1）And support beam（4）Connection formed
Stable slide-resistant system, cut-out creep face, stable construction environment is provided to internal structure, is oriented to wall（2）Lower section sets drilling
Bored concrete pile（3）, the performance for being oriented to wall is improved, more excellent geological conditions, reduction are provided to propulsion, preliminary bracing construction is excavated
Construction risk.
2. the present invention has good globality, holistic resistant behavior is good, can effectively prevent the slippage of slopes, more
Plus economical rationality.
Brief description of the drawings
The structural representation (sterogram) of Fig. 1 present invention；
The structural representation (front view) of Fig. 2 present invention；
The structural representation of Fig. 3 present invention（Top view）；
Fig. 4 Fig. 3 A-A sectional views
Embodiment
The present invention is the retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes, including drill-pouring
Stake（3）, Guan Liang（1）, support beam（4）With guiding wall（2）, it is characterised in that：First set cast-in-situ bored pile（3）, and by fair line road
Direction and horizontal path point row both sides, then pass through Guan Liang respectively（1）It is attached, the last Guan Liang along line direction（1）It is logical
Cross support beam（4）Support top is carried out, firm slide-resistant system is formed；System is integrally located at below earth's surface at 1 meter, and upper overburden layer is played
Protection and the effect of template；Two cast-in-situ bored piles（3）Divide the left and right sides at the dark hole import in row tunnel, be oriented to wall（2）It is seated in
Above cast-in-situ bored pile, and with two bored concrete piles（3）Top one-piece casting, improves and is oriented to wall shearing resistance, compression strength.
Operation principle：Cast-in-situ bored pile（3）By along line direction point row tunnel both sides, stop horizontal soil pressure；Drilling
Bored concrete pile（3）By horizontal path point row tunnel both sides, stop the soil pressure and horizontal soil pressure of longitudinal direction；Cast-in-situ bored pile（3）
Pass through Guan Liang respectively（1）It is attached, improves globality, strengthens supporting and retaining system ability；Along line direction Guan Liang（1）Entered by support beam
Row support top, forms firm slide-resistant system；Two cast-in-situ bored piles（3）Divide the left and right sides at the dark hole import in row tunnel, be oriented to wall
（2）Be seated in above cast-in-situ bored pile, and with two bored concrete piles（3）Top one-piece casting, improves and is oriented to wall shearing resistance, pressure resistance
Degree.
Claims (1)
1. the retaining structure and method of a kind of suppression tunnel light and shade hole intersection slopes transverse direction creep, including Guan Liang（1）, be oriented to wall
（2）, cast-in-situ bored pile（3）And support beam（4）, it is characterised in that：Cast-in-situ bored pile（3）By along line direction and horizontal path side
To a point row both sides, pass through Guan Liang respectively（1）It is attached, support beam is passed through along line direction Guan Liang（4）Support top is carried out, forms steady
Solid slide-resistant system, the left and right sides at two cast-in-situ bored piles point dark hole imports in row tunnel is oriented to wall and is seated in cast-in-situ bored pile
Top, and one-piece casting, effectively prevent from being oriented to the sinking of wall, improve the compression strength for being oriented to wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216531.8A CN107191198A (en) | 2017-04-05 | 2017-04-05 | The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216531.8A CN107191198A (en) | 2017-04-05 | 2017-04-05 | The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107191198A true CN107191198A (en) | 2017-09-22 |
Family
ID=59871407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710216531.8A Pending CN107191198A (en) | 2017-04-05 | 2017-04-05 | The retaining structure and method of a kind of horizontal creep of suppression tunnel light and shade hole intersection slopes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191198A (en) |
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| CH505943A (en) * | 1968-02-28 | 1971-04-15 | Kunz Alfred & Co | Method for producing a tunnel body |
| FR2727447A1 (en) * | 1994-11-28 | 1996-05-31 | Matiere Soc Civ De Brevets | Construction of tunnel under embankment in soft soils or areas prone to flooding |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 113 West Street, Nangang District, Harbin City, Heilongjiang Province, 150001 Applicant after: CHINA RAILWAY 22ND CONSTRUCTION BUREAU 1ST ENGINEERING Co.,Ltd. Applicant after: China Railway 22nd Bureau Group Co.,ltd. Applicant after: Lanzhou Jiaotong University Address before: No. 113 West Street, Nangang District, Harbin City, Heilongjiang Province, 150001 Applicant before: HARBIN RAILWAY CONSTRUCTION GROUP CO.,LTD. OF CHINA RAILWAY 22ND CONSTRUCTION BUREAU CO.,LTD. Applicant before: China Railway 22nd Bureau Group Co.,ltd. Applicant before: Lanzhou Jiaotong University |