CN204140108U - Roadway floor supporting anchorage cable - Google Patents
Roadway floor supporting anchorage cable Download PDFInfo
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- CN204140108U CN204140108U CN201420529179.5U CN201420529179U CN204140108U CN 204140108 U CN204140108 U CN 204140108U CN 201420529179 U CN201420529179 U CN 201420529179U CN 204140108 U CN204140108 U CN 204140108U
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- cable anchor
- hollow grouting
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- sleeve pipe
- grouting cable
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Abstract
The utility model provides a kind of roadway floor supporting anchorage cable, comprise: the hollow grouting cable anchor of column, hollow grouting cable anchor offers through Grouting Pipe, the first end of hollow grouting cable anchor is provided with slip casting adapter, sleeve pipe is arranged with outside hollow grouting cable anchor, the length of sleeve pipe is less than the length of hollow grouting cable anchor, the distance of the first end of sleeve pipe and hollow grouting cable anchor is less than the distance with the second end of hollow grouting cable anchor, and sleeve pipe is closed fixing near the second end place of hollow grouting cable anchor and hollow grouting cable anchor; Hollow grouting cable anchor from the second end of hollow grouting cable anchor to sleeve pipe offers multiple slurry outlet, and slurry outlet is communicated with Grouting Pipe.The roadway floor supporting anchorage cable that the utility model provides, can carry high pre-stress in longer scope, improves roadway floor self-bearing capacity.
Description
Technical field
The utility model relates to a kind of suspension device, particularly relates to a kind of roadway floor supporting anchorage cable.
Background technology
In argillaceous soft rock tunnel, when there is crevice water, karst water, construction water in roadway floor, hydration exacerbates shale roadway floor argillization, disintegration, weathering, have a strong impact on roadway floor self-bearing capacity, cause floor rock structural deterioration, finally cause roadway floor serious end distension, affect tunnel and normally use, restriction mining area healthy and rapid development.
In prior art, general employing slip casting carries out jacking of floor improvement in conjunction with cable bolting method, it adopts Anchor Agent to carry out anchorage cable anchoring, or adopt grouting way to realize anchorage cable anchoring, gap between anchor cable and boring is all full of and fills out slurries, anchor cable is cemented to entirety by injection slurry and roadway floor, carries out pretension by stretch-draw anchor, realizes the support action to roadway floor.
But adopt prior art, anchor cable can not carry high pre-stress in longer scope, thus reduces roadway floor self-bearing capacity.
Utility model content
The utility model provides a kind of roadway floor supporting anchorage cable, can carry high pre-stress in longer scope, improves roadway floor self-bearing capacity.
The utility model provides a kind of roadway floor supporting anchorage cable, comprise: the hollow grouting cable anchor of column, hollow grouting cable anchor offers through Grouting Pipe, the first end of hollow grouting cable anchor is provided with slip casting adapter, sleeve pipe is arranged with outside hollow grouting cable anchor, the length of sleeve pipe is less than the length of hollow grouting cable anchor, the distance of the first end of sleeve pipe and hollow grouting cable anchor is less than the distance with the second end of hollow grouting cable anchor, and sleeve pipe is closed fixing near the second end place of hollow grouting cable anchor and hollow grouting cable anchor; Hollow grouting cable anchor from the second end of hollow grouting cable anchor to sleeve pipe offers multiple slurry outlet, and slurry outlet is communicated with Grouting Pipe.
In an embodiment of the present utility model, aforementioned sleeve pipe is plastic bushing.
In an embodiment of the present utility model, it is fixing that aforementioned sleeve pipe and hollow grouting cable anchor adopt rapid setting cement to close.
In an embodiment of the present utility model, said hollow grouting cable anchor is cylindrical, and external diameter is 20 millimeters ~ 30 millimeters, and length is 6 meters ~ 20 meters; The diameter of aforementioned Grouting Pipe is 8 millimeters ~ 15 millimeters; The length of aforementioned slip casting adapter is 20 millimeters ~ 50 millimeters.
In an embodiment of the present utility model, the external diameter of aforementioned sleeve pipe is 40 millimeters ~ 50 millimeters, and internal diameter is 35 millimeters ~ 45 millimeters, and length is 3 meters ~ 15 meters; The external diameter of aforementioned sleeve pipe is less 15 millimeters than the roadway floor boring of installing roadway floor supporting anchorage cable ~ and 25 millimeters; Aforementioned from the first end of hollow grouting cable anchor to sleeve pipe hollow grouting cable anchor length be 200 millimeters ~ 300 millimeters, the hollow grouting cable anchor length from the second end of hollow grouting cable anchor to sleeve pipe is 3 meters ~ 10 meters.
In an embodiment of the present utility model, it is 400 millimeters ~ 800 millimeters that aforementioned sleeve pipe and hollow grouting cable anchor close fixing length.
The roadway floor supporting anchorage cable that the utility model provides, by being arranged with sleeve pipe outside hollow grouting cable anchor, second end of roadway floor supporting anchorage cable and roadway floor are fixed, the sleeve pipe place of roadway floor supporting anchorage cable is unfixing, thus high pre-stress can be carried in longer scope, improve roadway floor self-bearing capacity.
Accompanying drawing explanation
Fig. 1 is the elevation of the roadway floor supporting anchorage cable that the utility model provides;
Fig. 2 is the I-I sectional view of base plate supporting anchorage cable in Fig. 1;
Fig. 3 is the scheme of installation of the roadway floor supporting anchorage cable that the utility model provides.
Description of reference numerals:
1-hollow grouting cable anchor; 2-sleeve pipe; Second end place of 3-hollow grouting cable anchor;
4-slurry outlet; 5-slip casting adapter; 6-Grouting Pipe;
7-lockset; 8-flat pallet; 9-rapid setting cement;
10-cement grout; 11-Shallow hole grouting pipe; 12-terrace;
13-grouting layer; Grouting and reinforcing district, 14-deep; 15-rubble;
16-holes.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the elevation of the roadway floor supporting anchorage cable that the utility model provides, and Fig. 2 is the I-I sectional view of base plate supporting anchorage cable in Fig. 1, and Fig. 3 is the scheme of installation of the roadway floor supporting anchorage cable that the utility model provides.As Figure 1-3, the utility model provides a kind of roadway floor supporting anchorage cable, comprise: the hollow grouting cable anchor 1 of column, hollow grouting cable anchor 1 offers through Grouting Pipe 6, the first end of hollow grouting cable anchor 1 is provided with slip casting adapter 5, sleeve pipe 2 is arranged with outside hollow grouting cable anchor 1, the length of sleeve pipe 2 is less than the length of hollow grouting cable anchor 1, sleeve pipe 2 is less than the distance with the second end of hollow grouting cable anchor 1 with the distance of the first end of hollow grouting cable anchor 1, and sleeve pipe 2 is closed fixing near the second end place 3 of hollow grouting cable anchor 1 with hollow grouting cable anchor 1; Hollow grouting cable anchor 1 from the second end of hollow grouting cable anchor 1 to sleeve pipe 2 offers multiple slurry outlet 4, and slurry outlet 4 is communicated with Grouting Pipe 6.
It should be noted that, the hollow grouting cable anchor 1 in the present embodiment is column, is in order to the shape of the boring 16 of roadway floor in using with reality is corresponding; The number of the slurry outlet 4 in the present embodiment can be multiple, but concrete number the present embodiment of slurry outlet does not limit at this, and slurry outlet 4 can be uniformly distributed on the position that hollow grouting cable anchor 1 do not have sleeve 2 to entangle.
Concrete, the roadway floor supporting anchorage cable that the present embodiment provides in use, as shown in Figure 3, the roadway floor carrying out Shallow hole grouting offers boring 16, roadway floor supporting anchorage cable is placed in boring 16, gives slip casting in hollow grouting cable anchor 1 by slip casting adapter 5.Injection slurry is holed in 16 by Grouting Pipe 6 and slurry outlet 4 slip casting to roadway floor, owing to being arranged with sleeve pipe 2 outside hollow grouting cable anchor 1, and sleeve pipe 2 is closed fixing near the second end place 3 of hollow grouting cable anchor 1 with hollow grouting cable anchor 1, make to be full of injection slurry in boring 16, and between hollow grouting cable anchor 1 and sleeve pipe 2, be not filled with injection slurry, effectively roadway floor supporting anchorage cable can be cemented to entirety by injection slurry and roadway floor, also be, roadway floor supporting anchorage cable and roadway floor are fixed, sleeve pipe 2 place of roadway floor supporting anchorage cable is not fixed, thus make roadway floor supporting anchorage cable carry high pre-stress in longer scope.
The roadway floor supporting anchorage cable that the present embodiment provides, by being arranged with sleeve pipe 2 outside hollow grouting cable anchor 1, second end of roadway floor supporting anchorage cable and roadway floor are fixed, sleeve pipe 2 place of roadway floor supporting anchorage cable is unfixing, thus high pre-stress can be carried in longer scope, improve roadway floor self-bearing capacity.
In an embodiment of the present utility model, sleeve pipe 2 is plastic bushing.The present embodiment middle sleeve 2 adopts plastic bushing, can realize easy construction, quick.But be not limited in this, the sleeve pipe 2 in the present embodiment also can be the sleeve pipe of other material, such as, metal sleeve, rubber tube, earthenware etc., only otherwise sleeve pipe aitiogenic with injection slurry.
In an embodiment of the present utility model, as shown in Figure 3, sleeve pipe 2 and hollow grouting cable anchor 1 adopt rapid setting cement closed fixing.The present embodiment adopts rapid setting cement, can realize quick closure sleeve pipe 2 and hollow grouting cable anchor 1.
In an embodiment of the present utility model, hollow grouting cable anchor 1 is cylindrical, and external diameter r is 20 millimeters ~ 30 millimeters, and length L is 6 meters ~ 20 meters; The diameter D of Grouting Pipe 6 is 8 millimeters ~ 15 millimeters; The length e of slip casting adapter 5 is 20 millimeters ~ 50 millimeters.
In an embodiment of the present utility model, the external diameter R of sleeve pipe 2 is 40 millimeters ~ 50 millimeters, and internal diameter is 35 millimeters ~ 45 millimeters, and length c is 3 meters ~ 15 meters; The external diameter R of sleeve pipe 2 than the roadway floor installing roadway floor supporting anchorage cable hole 16 diameter R1 little 15 millimeters ~ 25 millimeters; Hollow grouting cable anchor length d from the first end of hollow grouting cable anchor 1 to sleeve pipe 2 is 200 millimeters ~ 300 millimeters, and the hollow grouting cable anchor length b from the second end of hollow grouting cable anchor 1 to sleeve pipe 2 is 3 meters ~ 10 meters.
In an embodiment of the present utility model, it is 400 millimeters ~ 800 millimeters that sleeve pipe 2 closes fixing length a with hollow grouting cable anchor 1.
In practice of construction scene, as shown in Figure 3, the scheme of installation of the roadway floor supporting anchorage cable that the present embodiment provides is when concrete construction, and first, at roadway floor construction terrace 12, terrace 12 thickness g is 100 ~ 300mm; Adopt Shallow hole grouting pipe 11 to carry out shallow bore hole low-pressure grouting, construct deep slip casting grouting layer 13, Shallow hole grouting pipe 11 diameter D
2be 15 ~ 30mm, length L
2be 1.5 ~ 2.5m, grouting pressure is 1.0 ~ 2.5Mpa, and grouting layer 13 thickness m is 2 ~ 3m.Terrace 12 can stop superficial part grouting serous fluid to expose roadway floor surface, and when grouting layer 13 can effectively prevent from adopting hollow grouting cable anchor 1 to carry out deep high-pressure slip-casting, slurries expose backplate surface, effective guarantee deep slip casting effect; Secondly, at roadway floor construction drill 16, hole 16 diameter R
1be 55 ~ 75mm, length L
1be 6 ~ 20m, the roadway floor supporting anchorage cable completed is put into boring 16, and adopt rapid setting cement 9 sealing of hole, sealed borehole length L
3be 500 ~ 1000mm, use Grouting Pipe 6 deep hole high-pressure slip-casting in the middle part of hollow grouting cable anchor 1, grouting pressure is 4 ~ 5MPa.By deep high-pressure slip-casting, can effectively hollow grouting cable anchor 1 and boring 16 hole walls be bondd, reinforce deep wall rock simultaneously; Again, adopt flat pallet 8 and lockset 7 pairs of hollow grouting cable anchors 1 to apply high pre-stress, the prestressing force that hollow grouting cable anchor 1 applies is 100 ~ 150KN.Roadway floor stress can be improved after Shi Hanzhang; Finally, adopt rubble 15 to lay backplate surface, rubble 15 laying depth n is 200 ~ 300mm, covers and exposes hollow grouting cable anchor 1.
It should be noted that, in the present embodiment, injection slurry can be cement grout 10, and can be also other injection slurry, the present invention limit this.
From the above, the roadway floor supporting anchorage cable that the utility model provides, achieve anchor cable high pre-stress, improve floor rock stress, high-pressure slip-casting is carried out by Grouting Pipe in the middle part of roadway floor supporting anchorage cable, improve the mechanical property of floor rocks, improve the self-bearing capacity of floor rock greatly, ensured that the complete of roadway floor is with stable.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a roadway floor supporting anchorage cable, comprising: the hollow grouting cable anchor of column, and described hollow grouting cable anchor offers through Grouting Pipe, and the first end of described hollow grouting cable anchor is provided with slip casting adapter, it is characterized in that:
Sleeve pipe is arranged with outside described hollow grouting cable anchor, the length of described sleeve pipe is less than the length of described hollow grouting cable anchor, the distance of the first end of described sleeve pipe and described hollow grouting cable anchor is less than the distance with the second end of described hollow grouting cable anchor, and described sleeve pipe is closed fixing near the second end place of described hollow grouting cable anchor and described hollow grouting cable anchor;
Hollow grouting cable anchor from the second end of described hollow grouting cable anchor to described sleeve pipe offers multiple slurry outlet, and described slurry outlet is communicated with described Grouting Pipe.
2. roadway floor supporting anchorage cable according to claim 1, is characterized in that, described sleeve pipe is plastic bushing.
3. roadway floor supporting anchorage cable according to claim 1, is characterized in that, it is fixing that described sleeve pipe and described hollow grouting cable anchor adopt rapid setting cement to close.
4. the roadway floor supporting anchorage cable according to any one of claims 1 to 3, is characterized in that, described hollow grouting cable anchor is cylindrical, and external diameter is 20 millimeters ~ 30 millimeters, and length is 6 meters ~ 20 meters;
The diameter of described Grouting Pipe is 8 millimeters ~ 15 millimeters;
The length of described slip casting adapter is 20 millimeters ~ 50 millimeters.
5. roadway floor supporting anchorage cable according to claim 4, is characterized in that, the external diameter of described sleeve pipe is 40 millimeters ~ 50 millimeters, and internal diameter is 35 millimeters ~ 45 millimeters, and length is 3 meters ~ 15 meters;
The external diameter of described sleeve pipe is less 15 millimeters than the roadway floor boring of installing described roadway floor supporting anchorage cable ~ and 25 millimeters;
Hollow grouting cable anchor length from the first end of described hollow grouting cable anchor to described sleeve pipe is 200 millimeters ~ 300 millimeters, and the hollow grouting cable anchor length from the second end of described hollow grouting cable anchor to described sleeve pipe is 3 meters ~ 10 meters.
6. roadway floor supporting anchorage cable according to claim 5, is characterized in that, it is 400 millimeters ~ 800 millimeters that described sleeve pipe and described hollow grouting cable anchor close fixing length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529179.5U CN204140108U (en) | 2014-09-15 | 2014-09-15 | Roadway floor supporting anchorage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529179.5U CN204140108U (en) | 2014-09-15 | 2014-09-15 | Roadway floor supporting anchorage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140108U true CN204140108U (en) | 2015-02-04 |
Family
ID=52416801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529179.5U Active CN204140108U (en) | 2014-09-15 | 2014-09-15 | Roadway floor supporting anchorage cable |
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| CN (1) | CN204140108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252882A (en) * | 2018-11-19 | 2019-01-22 | 河南理工大学 | 3rd area of breaking surrounding rock tunnel cooperates with coupling supporting system and its construction method |
-
2014
- 2014-09-15 CN CN201420529179.5U patent/CN204140108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252882A (en) * | 2018-11-19 | 2019-01-22 | 河南理工大学 | 3rd area of breaking surrounding rock tunnel cooperates with coupling supporting system and its construction method |
| CN109252882B (en) * | 2018-11-19 | 2024-03-15 | 河南理工大学 | Three-region cooperative coupling supporting system for broken surrounding rock roadway and construction method of three-region cooperative coupling supporting system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |