CN107869143A - Ruggedized construction for loose crushing Dangerous Rock Body - Google Patents
Ruggedized construction for loose crushing Dangerous Rock Body Download PDFInfo
- Publication number
- CN107869143A CN107869143A CN201711206105.2A CN201711206105A CN107869143A CN 107869143 A CN107869143 A CN 107869143A CN 201711206105 A CN201711206105 A CN 201711206105A CN 107869143 A CN107869143 A CN 107869143A
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- China
- Prior art keywords
- rope
- ruggedized construction
- rock body
- construction
- dangerous rock
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
- E02D2300/0034—Steel; Iron in wire form
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0084—Geogrids
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The present invention, which discloses, is related to a kind of ruggedized construction of Dangerous Rock Body, a kind of especially ruggedized construction for loose crushing Dangerous Rock Body, it includes protection network, grouting rock bolt, concrete strengthening mechanism, the protection network matching is arranged on Dangerous Rock Body, and protection network is embedded in concrete strengthening mechanism, described grouting rock bolt one end is arranged in Dangerous Rock Body, and the other end is connected with protection network, and the invention provides a kind of ruggedized construction for the loose crushing Dangerous Rock Body that fastening strength is high, working security is high.
Description
Technical field
The present invention relates to a kind of ruggedized construction of Dangerous Rock Body, especially a kind of reinforcing knot for loose crushing Dangerous Rock Body
Structure；In addition the invention further relates to the construction of a kind of construction method, especially a kind of ruggedized construction for loose crushing Dangerous Rock Body
Method.
Background technology
In Hydraulic and Hydro-Power Engineering, traffic engineering, usually beyond engineering works excavation slope, distribution is various differently
The Dangerous Rock Body of matter characteristic, Dangerous Rock Body belongs to a kind of special geologic body in environmental slope, and relative volume is larger, be by it is multigroup not
The cutting separation of continuous structure face, stability is poor, may by slump, fall or in the form of toppling over etc. unstability geologic body.
It is present in Engineering Zone, the operation that the Dangerous Rock Body beyond building excavation slope is built to bottom and construction safety
It is to have obvious threat.Although from macroscopic aspect, the Dangerous Rock Body in environmental slope experienced the long-term of earth history period
Test, in the case of not by construction strong disturbance, the resistance to overturning condition of side slope is preferable.But in long-term wind
Change, under the influence of off-load, " local stability " problem of side slope superficial layer be it is existing, especially this part slopes " uphanging " in
Building top, even local very little scope is because natural cause (such as rainfall, gradual weathering) and construction factor are (such as quick-fried
Broken vibration) cause local " Dangerous Rock Body " unstability, high-order avalanche is formed, can also bring significant threat to the construction safety of its underpart
And disaster；Runtime is also possible to bring significant damage, or even catastrophic effect to bottom buildings or structures.
At present, there is the measure that some are reinforced to Dangerous Rock Body to have prevented avalanche, but due to the feature of Dangerous Rock Body, cause
Constructional difficulties, fastening strength is relatively low, and security is relatively low during construction, influences the safety of workmen.
The content of the invention
The technical problems to be solved by the invention are to provide the loose crushing danger that a kind of fastening strength is high, working security is high
The ruggedized construction of rock mass.
Ruggedized construction used by its technical problem of present invention solution for loose crushing Dangerous Rock Body, including protection network,
Grouting rock bolt, pneumatically placed concrete ruggedized construction, the protection network matching is arranged on Dangerous Rock Body, and protection network is embedded in pneumatically placed concrete
In ruggedized construction, described grouting rock bolt one end is arranged in Dangerous Rock Body, and the other end is connected with protection network.
It is further that the protection network includes supporting rope skeleton, rope bolt, steel rope net, the supporting rope skeleton
Longitudinal bracing rope, cross-brace rope including multiple connections that intersect, the steel rope net is by suturing rope and supporting rope skeleton
It is connected, rope bolt one end is arranged in Dangerous Rock Body, and the other end is connected with longitudinal bracing rope, cross-brace rope.
It is further that the other end of the rope bolt is provided with connection ring, longitudinal bracing rope, cross-brace rope
With being connected through connection ring with rope bolt.
It is further that the steel rope net is made up of the first grid, the size of the first grid is 5m × 5m.
It is further that the protection network also includes grid, the grid is made up of the second grid, the second grid
Size is 2m × 2m, and the grid is arranged on the centre of steel rope net.
It is further that the other end of the grouting rock bolt is connected with the supporting rope skeleton of protection network.
Further that the other end of the grouting rock bolt is provided with connection crotch, longitudinal bracing rope, cross-brace rope with
Connection crotch is connected.
It is further that concrete contains polypropylene fibre in pneumatically placed concrete ruggedized construction.
The present invention another will solve the problems, such as to be to provide the loose crushing that a kind of fastening strength is high, working security is high
The construction method of the ruggedized construction of Dangerous Rock Body.
Provided by the present invention for the construction method of the ruggedized construction of loose crushing Dangerous Rock Body, applying for protection network is carried out first
Work, then the construction of grouting rock bolt is carried out, finally carry out the construction of pneumatically placed concrete ruggedized construction.
The beneficial effects of the invention are as follows：The present invention on Dangerous Rock Body by setting protection network, grouting rock bolt, pneumatically placed concrete to add
Fixing structure, protection network are embedded in pneumatically placed concrete ruggedized construction, and that is to say pneumatically placed concrete ruggedized construction is also to be set directly at danger
On rock mass, protection network, grouting rock bolt, pneumatically placed concrete ruggedized construction all have certain reinforcement ability to Dangerous Rock Body, are mutually adding
Dangerous Rock Body is reinforced under strong collective effect, the reinforcement ability of Dangerous Rock Body is significantly enhanced, especially suitable for loose crushing
Dangerous Rock Body；Meanwhile in the construction of ruggedized construction, the construction of protection network is carried out first, then the construction of grouting rock bolt is carried out, most
The construction of pneumatically placed concrete ruggedized construction is carried out afterwards, and protection network efficiency of construction is fast, quickly completes protection network construction, it is therefore prevented that crag
Body caves in ruggedized construction work progress, effectively the construction to grouting rock bolt, the construction of pneumatically placed concrete ruggedized construction
Safety guarantee is provided, in grouting rock bolt construction, the construction of pneumatically placed concrete ruggedized construction, does not interfere with adjacent cells and bottom side slope
Normal excavation, supporting construction, so as to significantly improve ruggedized construction working security.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation of protection network；
Parts, position and numbering in figure：Dangerous Rock Body 1, protection network 2, supporting rope skeleton 21, rope bolt 22, longitudinal direction
Supporting rope 221, cross-brace rope 222, steel rope net 23, suture rope 24, grid 25, grouting rock bolt 3, pneumatically placed concrete ruggedized construction
4。
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the present invention is in the ruggedized construction of loose crushing Dangerous Rock Body, including protection network 2, grouting rock bolt 3,
Pneumatically placed concrete ruggedized construction 4, the matching of protection network 2 is arranged on Dangerous Rock Body 1, and protection network 2 is embedded in pneumatically placed concrete reinforcing
In structure 4, described one end of grouting rock bolt 3 is arranged in Dangerous Rock Body 1, and the other end is connected with protection network 2.
The present invention on Dangerous Rock Body by setting protection network 2, grouting rock bolt 3, pneumatically placed concrete ruggedized construction 4, in protection network 2
In pneumatically placed concrete ruggedized construction 4, it that is to say pneumatically placed concrete ruggedized construction 4 and be set directly on Dangerous Rock Body 1, protection network
2nd, grouting rock bolt 3, pneumatically placed concrete ruggedized construction 4 all have certain reinforcement ability to Dangerous Rock Body, in the common work mutually strengthened
With the lower reinforcement ability reinforced to Dangerous Rock Body 1, significantly enhance Dangerous Rock Body 1, the Dangerous Rock Body especially suitable for loose crushing.
Specifically, the structure of protection network 2 is varied, a kind of currently preferred mode is：As shown in figure 3, protection network 2
Including supporting rope skeleton 21, rope bolt 22, steel rope net 23, the supporting rope skeleton 21 includes multiple connections that intersect
Longitudinal bracing rope 221, cross-brace rope 222, the steel rope net 23 are connected by suturing rope 24 with supporting rope skeleton 21, steel wire
The one end of line anchor bar 22 is arranged in Dangerous Rock Body 1, and the other end is connected with longitudinal bracing rope 221, cross-brace rope 222.For side
Just rope bolt 22 is connected with supporting rope skeleton 21, and one end of rope bolt 22 is provided with connection annulus, longitudinal bracing
Rope 221, cross-brace rope 222 are matched through connection ring and are connected with rope bolt 22.Got according in a large amount of practices, steel cable
Net 23 is made up of the first grid, and the size of the first grid is 5m × 5m.Broken Dangerous Rock Body 1 is dissipated for some, is existed less
Size, in order to prevent the rock of the part small size from falling, protection network 2 of the present invention is additionally provided with grid 25, the grid
25 are made up of the second grid, and the size of the second grid is 2m × 2m, and the grid 25 is arranged on the centre of steel rope net 23.Specifically
For：Rope bolt 22 is typically folded to form using 1 Φ 16mm steel cable, array pitch 5.0m × 5.0m, is goed deep into Dangerous Rock Body 1
2.0m, exposed parts form annulus, and longitudinal bracing rope 221 and cross-brace rope 222 pass through, longitudinal bracing rope 221 and horizontal stroke
Φ 16mm steel wire ropes are used to supporting rope 222, the every size of steel rope net 23 is 5.0m × 5.0m.Crisscross φ 16mm are horizontal
Supporting rope 222 and φ 16mm longitudinal bracings rope 221 are linked with rope bolt 22 and carry out pre- tensioning, every steel rope net 23 with
The suture of surrounding suture rope 24 is coupled and tensed, and the pre- tensioning process can make system impose certain normal direction preload pressure to domatic,
So as to improve the stability of top layer Rock And Soil, the generation of collapse rock-fall is prevented as much as possible and is limited in fraction falling rocks necessarily
Space in move.
3-5m in Dangerous Rock Body 1 is goed deep into one end of grouting rock bolt 3, and the other end is connected with the supporting rope skeleton 21 of protection network 2,
So being provided with one can reinforce to Dangerous Rock Body 1, and two it can strengthen fixed effect to protection network 2.In order to facilitate sand
The connection of anchor pole 3 and supporting rope skeleton 21 is starched, the other end of grouting rock bolt 3 is provided with connection crotch, longitudinal bracing rope 221,
Cross-brace rope 222 is connected with being connected crotch.
Polypropylene fibre intensity is high, light weight, so concrete contains polypropylene fibre in pneumatically placed concrete ruggedized construction 4,
Oil content is 0.9kg/m3, pneumatically placed concrete ruggedized construction 4 can be by the way of injection.
The construction method of the ruggedized construction of the loose crushing Dangerous Rock Body of the present invention, carries out the construction of protection network 2 first, then enters
The construction of row grouting rock bolt 3, finally carry out the construction of pneumatically placed concrete ruggedized construction 4.The efficiency of construction of protection network 2 is fast, rapidly complete
Constructed into protection network 2, it is therefore prevented that Dangerous Rock Body 1 caves in ruggedized construction work progress, effectively applying to grouting rock bolt 3
The construction of work, pneumatically placed concrete ruggedized construction 4 provides safety guarantee, is constructed in grouting rock bolt construction 3, pneumatically placed concrete ruggedized construction 4
When, adjacent cells and normal excavation, the supporting construction of bottom side slope are not interfered with, so as to significantly improve ruggedized construction construction peace
Quan Xing.
The Specific construction process of protection network 2 is：1st, the surface dust that construction safety is threatened in the slope protection region of Dangerous Rock Body 1 is removed
And float stone, local landform (the local accumulation body and convex played being unfavorable for normal function after construction and installation and the installation of influence system
Play body etc.) suitably repaired；
2nd, the construction of rope bolt 22, a depth is dug at each hole position not less than 22 exposed ring set of rope bolt length
The pit of degree, general bore 20cm, deep 20cm, when when stratum is loose or broken is unable to pore-forming, being adopted at local hole position
The ground section of pore-forming is unable to C15 concrete foundations displacement of the cross dimensions not less than 0.4 × 0.4m.Slip casting simultaneously inserts anchor pole, uses
Label is not less than M20 cement mortar, preferably with cement-sand ratio 1:1~1.2, the cement mortar or the ratio of mud of the ratio of mud 0.45~0.50
0.45~0.50 neat slurry, cement preferably use 42.5 Portland cements, are preferentially not more than from particle diameter thin in 3mm
Sand, it is ensured that slurries are full, and injecting cement paste maintenance was no less than three days before next process is carried out；
The 3rd, supporting rope skeleton 21 is installed；
4th, paving hangs steel rope net 23 from the top down, and steel rope net 23 is connected by suturing rope 24 with supporting rope skeleton 21.
The Specific construction process of grouting rock bolt 3 is：Grouting rock bolt 3 uses Φ 28mm grouting rock bolt, L=6m and Φ 32mm sand
Starch anchor pole, L=9m, arranged for interval.3 exposed 45cm of grouting rock bolt, form crotch, longitudinal bracing rope 221 and cross-brace rope 222
Pass through.
The Specific construction process of pneumatically placed concrete ruggedized construction 4 is：Pneumatically placed concrete ruggedized construction 4 uses blown polypropylene fibrin tissue adhesive,
Polypropylene fibre, volume 0.9kg/m are filled in side slope pneumatically placed concrete3, polypropylene fiber shotcrete uses wet shot method, mixes
It is evenly distributed with the time with ensureing microfibre in concrete as determination standard.
Claims (9)
1. the ruggedized construction for loose crushing Dangerous Rock Body, it is characterised in that：It is mixed including protection network (2), grouting rock bolt (3), spray
Native ruggedized construction (4) is coagulated, protection network (2) matching is arranged on Dangerous Rock Body (1), and protection network (2) is embedded in pneumatically placed concrete
In ruggedized construction (4), described grouting rock bolt (3) one end is arranged in Dangerous Rock Body (1), and the other end is connected with protection network (2).
A kind of 2. ruggedized construction for loose crushing Dangerous Rock Body as claimed in claim 1, it is characterised in that：The protection network
(2) supporting rope skeleton (21), rope bolt (22), steel rope net (23) are included, the supporting rope skeleton (21) includes multiple phases
Longitudinal bracing rope (221), the cross-brace rope (222) of mutual interconnection, the steel rope net (23) is by suturing rope (24) and branch
Support rope skeleton (21) is connected, and rope bolt (22) one end is arranged in Dangerous Rock Body (1), the other end and longitudinal bracing rope
(221), cross-brace rope (222) is connected.
A kind of 3. ruggedized construction for loose crushing Dangerous Rock Body as claimed in claim 2, it is characterised in that：The steel wire rope
The other end of anchor pole (22) is provided with connection ring, longitudinal bracing rope (221), cross-brace rope (222) matching through connection ring with
Rope bolt (22) is connected.
A kind of 4. ruggedized construction for loose crushing Dangerous Rock Body as claimed in claim 2, it is characterised in that：The steel rope net
(23) it is made up of the first grid, the size of the first grid is 5m × 5m.
A kind of 5. ruggedized construction for loose crushing Dangerous Rock Body as claimed in claim 4, it is characterised in that：The protection network
(2) grid (25) is also included, the grid (25) is made up of the second grid, and the size of the second grid is 2m × 2m, described
Grid (25) is arranged on the centre of steel rope net (23).
A kind of 6. ruggedized construction for loose crushing Dangerous Rock Body as claimed in claim 2, it is characterised in that：The mortar anchor
The other end of bar (3) is connected with the supporting rope skeleton (21) of protection network (2).
A kind of 7. ruggedized construction for loose crushing Dangerous Rock Body as claimed in claim 6, it is characterised in that：The mortar anchor
The other end of bar (3) is provided with connection crotch, and longitudinal bracing rope (221), cross-brace rope (222) are connected with being connected crotch.
8. a kind of ruggedized construction for loose crushing Dangerous Rock Body as described in claim 1 to 7 any one, its feature exist
In：Concrete contains polypropylene fibre in pneumatically placed concrete ruggedized construction (4).
9. the construction method of the ruggedized construction for the loose crushing Dangerous Rock Body described in claim 8, it is characterised in that：Enter first
The construction of row protection network (2), then the construction of grouting rock bolt (3) is carried out, finally carry out the construction of pneumatically placed concrete ruggedized construction (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206105.2A CN107869143A (en) | 2017-11-27 | 2017-11-27 | Ruggedized construction for loose crushing Dangerous Rock Body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206105.2A CN107869143A (en) | 2017-11-27 | 2017-11-27 | Ruggedized construction for loose crushing Dangerous Rock Body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107869143A true CN107869143A (en) | 2018-04-03 |
Family
ID=61754752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711206105.2A Pending CN107869143A (en) | 2017-11-27 | 2017-11-27 | Ruggedized construction for loose crushing Dangerous Rock Body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869143A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643950A (en) * | 2018-06-15 | 2018-10-12 | 沙洲职业工学院 | A kind of rock mass tomography control instability device |
| CN112709239A (en) * | 2020-12-29 | 2021-04-27 | 华能澜沧江水电股份有限公司 | Combined reinforcement construction method for rod net of cracked and loosened rock slope |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484174A (en) * | 2014-09-15 | 2016-04-13 | 五冶集团上海有限公司 | Slope anti-rockfall guard net and construction method thereof |
| CN207846436U (en) * | 2017-11-27 | 2018-09-11 | 中国电建集团成都勘测设计研究院有限公司 | Ruggedized construction for loose crushing Dangerous Rock Body |
-
2017
- 2017-11-27 CN CN201711206105.2A patent/CN107869143A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484174A (en) * | 2014-09-15 | 2016-04-13 | 五冶集团上海有限公司 | Slope anti-rockfall guard net and construction method thereof |
| CN207846436U (en) * | 2017-11-27 | 2018-09-11 | 中国电建集团成都勘测设计研究院有限公司 | Ruggedized construction for loose crushing Dangerous Rock Body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643950A (en) * | 2018-06-15 | 2018-10-12 | 沙洲职业工学院 | A kind of rock mass tomography control instability device |
| CN112709239A (en) * | 2020-12-29 | 2021-04-27 | 华能澜沧江水电股份有限公司 | Combined reinforcement construction method for rod net of cracked and loosened rock slope |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180403 |
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