CN204511463U - The two spray anchor combined type supporting and protection structure of country rock smashed to pieces - Google Patents
The two spray anchor combined type supporting and protection structure of country rock smashed to pieces Download PDFInfo
- Publication number
- CN204511463U CN204511463U CN201520185414.6U CN201520185414U CN204511463U CN 204511463 U CN204511463 U CN 204511463U CN 201520185414 U CN201520185414 U CN 201520185414U CN 204511463 U CN204511463 U CN 204511463U
- Authority
- CN
- China
- Prior art keywords
- placed concrete
- pneumatically placed
- anchor
- internal layer
- country rock
- 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.)
- Expired - Fee Related
Links
- 239000011435 rock Substances 0.000 title claims abstract description 39
- 239000007921 spray Substances 0.000 title claims abstract description 38
- 238000004873 anchoring Methods 0.000 claims abstract description 14
- 238000002513 implantation Methods 0.000 claims abstract description 9
- 238000004078 waterproofing Methods 0.000 claims abstract description 7
- 238000009412 basement excavation Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 210000003491 Skin Anatomy 0.000 claims description 4
- 230000003014 reinforcing Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 230000003628 erosive Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Abstract
The utility model discloses the two spray anchor combined type supporting and protection structure of a kind of country rock smashed to pieces, comprise outer spray anchor structure, internal layer spray anchor structure and liner structure three part; Outer spray anchor structure comprises just pneumatically placed concrete, outer anchor pole and lock foot anchoring stock, and first pneumatically placed concrete and country rock excavation face are closely affixed, outer anchor pole and lock foot anchoring stock inside first pneumatically placed concrete around implantation; Internal layer spray anchor structure comprises multiple pneumatically placed concrete and internal layer anchor pole, and multiple pneumatically placed concrete is positioned at just inside pneumatically placed concrete, is closely affixed with first pneumatically placed concrete, internal layer anchor pole inside multiple pneumatically placed concrete around implantation; Liner structure is located at inside multiple pneumatically placed concrete, comprises waterproofing course and inner lining cutting.The support form that the utility model adopts " spray anchor-spray anchor-lining cutting " combines carries out the reinforcing of breaking surrounding rock, encloses the crack in country rock, improves the globality of supporting and protection structure, can control the distortion of unfavorable geology country rock.
Description
Technical field
The utility model relates to tunnel structure support technology field, is specially the two spray anchor combined type supporting and protection structure of a kind of country rock smashed to pieces, is applicable to the support issues of the unfavorable geology country rocks such as Tunnel Passing fault belt.
Background technology
Along with the fast development of modern social economy, domesticly occurred comparatively flourishing infrastructure construction peak, just because of this, increasing construction of tunnel is built.But, due to the complexity of subterranean body hydrologic condition and geological conditions, in construction of tunnel process of construction, often inevitably face the security threat that quality factor terrifically causes.
The extreme geological conditions such as zone of fracture is in complicated stress field environment for a long time, rock crushing, loose, moisture, by excavation and the disturbing influence of Bracing Process and the seepage effect of underground water, very easily causes, in work progress, many geological disasters occur.In addition, tunneling, in weak broken stratum, can produce larger distortion during construction, even occurs the phenomenons such as water burst emits mud, Rock And Soil subsides, make the driving in tunnel and support work become very difficult, and be that safe operation has in the future buried great potential safety hazard.The support technology that large, the fast-growth present situation of construction of tunnel building size determines breaking surrounding rock has become the important technological problems that the development of China's tunnel construction must be captured.
Summary of the invention
In order to solve the support issues of the bad country rocks such as fault belt, the utility model provides the two spray anchor combined type supporting and protection structure of a kind of country rock smashed to pieces, and this supporting and protection structure good integrity, stress are reasonable, can control the distortion of unfavorable geology country rock.
For achieving the above object, structure of the present utility model is: the two spray anchor combined type supporting and protection structure of a kind of country rock smashed to pieces, is characterized in that, it sprays anchor structure by skin, internal layer sprays anchor structure and liner structure three part forms; Described skin spray anchor structure comprises just pneumatically placed concrete, outer anchor pole and lock foot anchoring stock, and wherein, first pneumatically placed concrete and country rock excavation face are closely affixed, outer anchor pole and lock foot anchoring stock inside first pneumatically placed concrete around implantation; Described internal layer spray anchor structure comprises multiple pneumatically placed concrete and internal layer anchor pole, and wherein, multiple pneumatically placed concrete is positioned at just inside pneumatically placed concrete, is closely affixed with first pneumatically placed concrete, internal layer anchor pole inside multiple pneumatically placed concrete around implantation; Described liner structure is located at inside multiple pneumatically placed concrete, comprises waterproofing course and inner lining cutting.
To the disturbance of country rock, the surrounding rock consolidation circle forming uniform force during in order to reduce construction, above-mentioned outer anchor pole, lock foot anchoring stock and internal layer anchor pole should adopt self-advancing type hollow grouting anchor, and wherein, outer anchor pole and internal layer anchor pole answer interval to arrange.
In order to improve the stress of supporting and protection structure, improve the supporting capacity of multiple pneumatically placed concrete, above-mentioned multiple pneumatically placed concrete inside adds steel mesh reinforcement, steel mesh reinforcement and first pneumatically placed concrete inner distance 20mm ~ 30mm.
The action principle of the two spray anchor combined type supporting and protection structure of the utility model country rock smashed to pieces: outer spray anchor structure adopts outer anchor pole and lock foot anchoring stock to coordinate whitewashing to carry out flexible yield supporting to breaking surrounding rock, effectively discharges confined pressure while closed wall-rock crack; Internal layer spray anchor structure forms rigidity by multiple pneumatically placed concrete and internal layer anchor pole and closes supporting, completely cuts off underground water to the erosion of tunnel surrounding to be transmitted to country rock deep by stress.Outer spray anchor structure and internal layer spray anchor structure are the main load bearing units forming support system, and its effect reinforces fragmented rock body and bearing load common with country rock.
Advantage of the present utility model and effect: the support form adopting " spray anchor-spray anchor-lining cutting " to combine carries out the reinforcing of breaking surrounding rock, both the crack enclosed in country rock in turn enhances contacting between supporting and protection structure and country rock, improve the globality of supporting and protection structure, the distortion of unfavorable geology country rock can be controlled, form the tunnel structure of a safe enough degree.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the two spray anchor combined type supporting and protection structure of the utility model country rock smashed to pieces.
Marginal data: 1-is pneumatically placed concrete just; The multiple pneumatically placed concrete of 2-; 3-steel mesh reinforcement; 4-waterproofing course; The inner lining cutting of 5-; The outer anchor pole of 6-; 7-internal layer anchor pole; 8-lock foot anchoring stock.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail:
As shown in Figure 1, the two spray anchor combined type supporting and protection structure of a kind of country rock smashed to pieces, it sprays anchor structure by skin, internal layer sprays anchor structure and liner structure three part forms; Outer spray anchor structure comprises just pneumatically placed concrete 1, outer anchor pole 6 and lock foot anchoring stock 8, and wherein, first pneumatically placed concrete 1 is closely affixed with country rock excavation face, outer anchor pole 6 and lock foot anchoring stock 8 inside first pneumatically placed concrete 1 around implantation; Internal layer spray anchor structure comprises multiple pneumatically placed concrete 2 and internal layer anchor pole 7, and wherein, multiple pneumatically placed concrete 2 is positioned at just inside pneumatically placed concrete 1, is closely affixed with first pneumatically placed concrete 1, internal layer anchor pole 7 inside multiple pneumatically placed concrete 2 around implantation; Liner structure comprises waterproofing course 4 and inner lining cutting 5, and wherein, inner lining cutting 5 is positioned at inside multiple pneumatically placed concrete 2, and waterproofing course 4 is located between inner lining cutting 5 and multiple pneumatically placed concrete 2.
To the disturbance of country rock, the surrounding rock consolidation circle forming uniform force during in order to reduce construction, above-mentioned outer anchor pole 6, lock foot anchoring stock 8 and internal layer anchor pole 7 adopt self-advancing type hollow grouting anchor, and outer anchor pole 6 and internal layer anchor pole 7 interval are arranged.
In order to improve the stress of supporting and protection structure, improve the supporting capacity of multiple pneumatically placed concrete 2, above-mentioned multiple pneumatically placed concrete 2 inside adds steel mesh reinforcement 3, steel mesh reinforcement 3 and first pneumatically placed concrete 1 inner distance 20mm ~ 30mm.
The sequence of construction of the two spray anchor combined type supporting and protection structure of the utility model country rock smashed to pieces comprises: the outer anchor pole 6 of tunnel excavation → injections just pneumatically placed concrete 1 → implant and lock foot anchoring stock 8 also carry out slip casting → hang steel mesh reinforcement 3, spray multiple pneumatically placed concrete 2 → implantation internal layer anchor pole 7 and carry out slip casting → perform waterproofing course 4 and inner lining cutting 5.
Claims (3)
1. the two spray anchor combined type supporting and protection structure of country rock smashed to pieces, comprise outer spray anchor structure, internal layer spray anchor structure and liner structure three part, it is characterized in that, described skin spray anchor structure comprises just pneumatically placed concrete, outer anchor pole and lock foot anchoring stock, first pneumatically placed concrete and country rock excavation face are closely affixed, outer anchor pole and lock foot anchoring stock inside first pneumatically placed concrete around implantation; Described internal layer spray anchor structure comprises multiple pneumatically placed concrete and internal layer anchor pole, and multiple pneumatically placed concrete is positioned at just inside pneumatically placed concrete, is closely affixed with first pneumatically placed concrete, internal layer anchor pole inside multiple pneumatically placed concrete around implantation; Described liner structure is located at inside multiple pneumatically placed concrete, comprises waterproofing course and inner lining cutting.
2. the two spray anchor combined type supporting and protection structure of country rock smashed to pieces as claimed in claim 1, it is characterized in that, described outer anchor pole, lock foot anchoring stock and internal layer anchor pole all adopt self-advancing type hollow grouting anchor.
3. the two spray anchor combined type supporting and protection structure of country rock smashed to pieces as claimed in claim 1, it is characterized in that, described multiple pneumatically placed concrete inside adds steel mesh reinforcement, steel mesh reinforcement and first pneumatically placed concrete inner distance 20mm ~ 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185414.6U CN204511463U (en) | 2015-03-31 | 2015-03-31 | The two spray anchor combined type supporting and protection structure of country rock smashed to pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185414.6U CN204511463U (en) | 2015-03-31 | 2015-03-31 | The two spray anchor combined type supporting and protection structure of country rock smashed to pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511463U true CN204511463U (en) | 2015-07-29 |
Family
ID=53709453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520185414.6U Expired - Fee Related CN204511463U (en) | 2015-03-31 | 2015-03-31 | The two spray anchor combined type supporting and protection structure of country rock smashed to pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511463U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804767A (en) * | 2016-04-13 | 2016-07-27 | 安徽理工大学 | Surrounding rock supporting construction method and surrounding rock supporting structure of water-contained roadway of coal mine |
| CN108019222A (en) * | 2017-11-20 | 2018-05-11 | 三峡大学 | A kind of tunnel lining structure filled using haydite and construction method |
| CN108547636A (en) * | 2018-03-15 | 2018-09-18 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of double-shielded TBM combined bolting and shotcrete structure and its construction method |
| CN111594223A (en) * | 2020-06-12 | 2020-08-28 | 河海大学 | Yielding structure capable of absorbing aging deformation of anchoring body and supporting method thereof |
-
2015
- 2015-03-31 CN CN201520185414.6U patent/CN204511463U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804767A (en) * | 2016-04-13 | 2016-07-27 | 安徽理工大学 | Surrounding rock supporting construction method and surrounding rock supporting structure of water-contained roadway of coal mine |
| CN108019222A (en) * | 2017-11-20 | 2018-05-11 | 三峡大学 | A kind of tunnel lining structure filled using haydite and construction method |
| CN108547636A (en) * | 2018-03-15 | 2018-09-18 | 华能西藏雅鲁藏布江水电开发投资有限公司 | A kind of double-shielded TBM combined bolting and shotcrete structure and its construction method |
| CN111594223A (en) * | 2020-06-12 | 2020-08-28 | 河海大学 | Yielding structure capable of absorbing aging deformation of anchoring body and supporting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160331 |