CN205154183U - Weak surrounding rock tunnel warp reinforcing apparatus - Google Patents
Weak surrounding rock tunnel warp reinforcing apparatus Download PDFInfo
- Publication number
- CN205154183U CN205154183U CN201520929973.3U CN201520929973U CN205154183U CN 205154183 U CN205154183 U CN 205154183U CN 201520929973 U CN201520929973 U CN 201520929973U CN 205154183 U CN205154183 U CN 205154183U
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- CN
- China
- Prior art keywords
- anchor tube
- steel plate
- steel sheet
- anchor pipe
- major diameter
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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.)
- Expired - Fee Related
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 24
- 239000011435 rock Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 238000007569 slipcasting Methods 0.000 claims abstract description 13
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 235000019994 cava Nutrition 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a weak surrounding rock tunnel struts the reinforcement measure, specifically is a weak surrounding rock tunnel warp reinforcing apparatus, solve unfavorable geology paragraph tunnel strut be out of shape too big, the problem of risk such as the structure unstability appears, cave in, strutting the location steel sheet between the steelframe and running through in the location steel sheet and the long anchor pipe of major diameter slip casting in inserting weak surrounding rock including being fixed in two pin, the long anchor tubular construction of major diameter slip casting contains anchor pipe body, inserts the steel reinforcement cage in the anchor pipe body and pours into a mould the biliquid thick liquid back up coat between body and steel reinforcement cage, set up the locating hole on the steel sheet of location, anchor pipe body inserts in the locating hole to anchor pipe body terminal surface is flat mutually with the location steel sheet, and fixing clip welded fastening is crossed to the square tube about anchor pipe body terminal surface and the location steel sheet. Simple structure, reasonable in design, simple and convenient, the easy operation of processing, it is effectual to strut the reinforcement, has guaranteed various factorss such as safety, quality, time limit for a project, benefit, makes bad stratum tunnel warp a section reinforcing construction level and has improved one step again.
Description
Technical field
The utility model relates to Support System in Soft Rock Tunnels preliminary bracing reinforcement measure, is specially a kind of Support System in Soft Rock Tunnels deformation reinforcement device.
Background technology
At present, when Sui Zhi district mainly through expansive soil, Fu Shui is soft mould the poor strata paragraph such as shape and tomography deformation section time, because country rock self-strength is low, preliminary bracing is out of shape aggravation under country rock squeezing action, supporting cracking unstability causes invades limit and even caves in, adopt an effective measure reinforce adjoining rock and suppress Support Deformation to be tunnel construction person needs one of difficult problem solved.
Summary of the invention
The utility model is excessive in order to solve the distortion of unfavorable geology paragraph Tunnel, occurs structural instability and the problem of the equivalent risk that caves in, provides a kind of Support System in Soft Rock Tunnels deformation reinforcement device.
The utility model adopts following technical scheme to realize: Support System in Soft Rock Tunnels deformation reinforcement device, comprise and be fixed on fixing steel plate between two Pin supporting steelframes and through fixing steel plate and the long anchor tube of major diameter slip casting inserted in weak surrounding rock, the dual slurry back-up coat that the long anchor tube structure of major diameter slip casting comprises anchor tube body, inserts the reinforcing cage in anchor tube body and be cast between body and reinforcing cage; Fixing steel plate offers locating hole, and anchor tube body inserts in locating hole, and anchor tube body end face is equal with fixing steel plate, and anchor tube body end face and fixing steel plate upper and lower are welded and fixed by fixing card.
The long anchor tube mouth of pipe of described major diameter slip casting installs grouting valve, is convenient to the flow and the injection speed that control slip casting, easy to operate.
Described reinforcing cage is made up of some reinforcing bars and some retainer rings that from top to bottom interval is welded between reinforcing bar, processes easy, the more important thing is the rigidity that can increase anchor tube further.
Compared with the structures such as existing temporary support reinforcing, the utility model has the following advantages:
1, by grouting reinforcement weak surrounding rock, major diameter grouting anchor pile stiffness by itself can be utilized again to strengthen preliminary bracing rigidity, avoid removing temporary support stresses re-distribution and cause supporting generation secondary deformation;
2, compared with locking pin anchor tube with conventional φ 42, grouting anchor pile diameter is large, and rigidity is strong, inside establishes reinforcing cage greatly to strengthen support rigidity;
3, anchorage depth is large, discloses soft stratum thickness according to boring, adopts the anchor tube degree of depth flexibly, and construction length 4 ~ 10m, can penetrate soft stratum;
4, meet New Austrian Tunneling Method Construction Principle, be similar to the extruding reinforcement principle of system anchor bolt, rock mass within the scope of the outer certain depth of supporting profile is reinforced, makes it to become stressed entirety with supporting.
In a word, the utility model structure is simple, reasonable in design, it is easy, simple to operate to process, support reinforcement is effective, ensure that the various factors such as safety, quality, duration, benefit, poor strata tunnel deformation segment strengthening construction level is made to turn improve a step, with strong points, there is promotional value extremely widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is using state figure of the present utility model;
In figure: 1-supporting steelframe; 2-fixing steel plate; 3-anchor tube body; 4-reinforcing cage; 5-locating hole; The fixing card of 6-; 7-grouting valve; 8-reinforcing bar; 9-retainer ring.
Detailed description of the invention
Support System in Soft Rock Tunnels deformation reinforcement device, as shown in Figure 1, comprise and be fixed on fixing steel plate 2 between two Pin supporting steelframes 1 and through fixing steel plate and the long anchor tube of major diameter slip casting inserted in weak surrounding rock, the long anchor tube mouth of pipe of major diameter slip casting installs grouting valve 7, the dual slurry back-up coat that the long anchor tube structure of major diameter slip casting comprises anchor tube body 3, inserts the reinforcing cage 4 in anchor tube body and be cast between body and reinforcing cage; Fixing steel plate is offered locating hole 5, anchor tube body inserts in locating hole, and anchor tube body end face is equal with fixing steel plate, and anchor tube body end face and fixing steel plate upper and lower are welded and fixed by fixing card 6.
As shown in Figure 2, reinforcing cage 4 is made up of some reinforcing bars 8 and some retainer rings 9 that from top to bottom interval is welded between reinforcing bar.
During concrete making, the long anchor tube of major diameter, anchor tube body adopts φ 89 ~ φ 127 seamless large-diameter pipes, and reinforcing cage is made up of the reinforcing bar of four φ 20 and φ 42 retainer ring that is welded on four reinforcing bar centre positions.During Initial Stage Construction supporting steelframe welds fixing steel plate, locating hole is formed in fixing steel plate centre-drilling hole by crawler type pipe canopy machine, load the long anchor tube of major diameter slip casting, the reinforcing cage of welding fabrication is inserted, end-blocking also arranges grouting valve, press-in adopts cement---water glass dual slurry, and with upper and lower U-shaped fixing card by anchor tube body end face and fixing steel plate firm welding.Between two Pin supporting steelframes, multiple fixing steel plate can be welded according to surrouding rock deformation situation interval, and plug the many long anchor tubes of major diameter, play reinforcement effect.
Claims (3)
1. a Support System in Soft Rock Tunnels deformation reinforcement device, it is characterized in that comprising and be fixed on fixing steel plate (2) between two Pin supporting steelframes (1) and through fixing steel plate and the long anchor tube of major diameter slip casting inserted in weak surrounding rock, the dual slurry back-up coat that the long anchor tube structure of major diameter slip casting comprises anchor tube body (3), inserts the reinforcing cage (4) in anchor tube body and be cast between body and reinforcing cage; Fixing steel plate is offered locating hole (5), anchor tube body inserts in locating hole, and anchor tube body end face is equal with fixing steel plate, and anchor tube body end face and fixing steel plate upper and lower pass through to fix and block (6) and be welded and fixed.
2. Support System in Soft Rock Tunnels deformation reinforcement device according to claim 1, is characterized in that the long anchor tube mouth of pipe of major diameter slip casting installs grouting valve (7).
3. Support System in Soft Rock Tunnels deformation reinforcement device according to claim 1 and 2, is characterized in that reinforcing cage (4) is made up of some reinforcing bars (8) and interval is welded between reinforcing bar some retainer rings (9) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929973.3U CN205154183U (en) | 2015-11-21 | 2015-11-21 | Weak surrounding rock tunnel warp reinforcing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929973.3U CN205154183U (en) | 2015-11-21 | 2015-11-21 | Weak surrounding rock tunnel warp reinforcing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154183U true CN205154183U (en) | 2016-04-13 |
Family
ID=55689891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520929973.3U Expired - Fee Related CN205154183U (en) | 2015-11-21 | 2015-11-21 | Weak surrounding rock tunnel warp reinforcing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840209A (en) * | 2016-05-20 | 2016-08-10 | 中铁二十五局集团第工程有限公司 | Construction method for controlling deformation of anchor piles at barrel segment of tunnel |
| CN109989777A (en) * | 2019-04-03 | 2019-07-09 | 中铁十八局集团有限公司 | The method for being squeezed and deformed Duan Chuzhi large deformation for controlling the small mileage in tunnel |
-
2015
- 2015-11-21 CN CN201520929973.3U patent/CN205154183U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840209A (en) * | 2016-05-20 | 2016-08-10 | 中铁二十五局集团第工程有限公司 | Construction method for controlling deformation of anchor piles at barrel segment of tunnel |
| CN109989777A (en) * | 2019-04-03 | 2019-07-09 | 中铁十八局集团有限公司 | The method for being squeezed and deformed Duan Chuzhi large deformation for controlling the small mileage in tunnel |
| CN109989777B (en) * | 2019-04-03 | 2020-06-09 | 中铁十八局集团有限公司 | Method for controlling initial support large deformation of tunnel small-mileage extrusion deformation section |
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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: 20160413 |