CN211008701U - Anchor rope extension slip casting anchor - Google Patents
Anchor rope extension slip casting anchor Download PDFInfo
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- CN211008701U CN211008701U CN201922081234.4U CN201922081234U CN211008701U CN 211008701 U CN211008701 U CN 211008701U CN 201922081234 U CN201922081234 U CN 201922081234U CN 211008701 U CN211008701 U CN 211008701U
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- sealing bag
- cable
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Abstract
The utility model provides an anchor rope extension slip casting anchor, the device includes anchor rope, the slip casting pipe, hole sealing bag and mounting, the one end of anchor rope passes the hole sealing bag and stretches into the bottom of anchor rope drilling, the other end stretches out anchor rope drilling, form the anchor section between the bottom of hole sealing bag and anchor rope drilling, set up a clearing hole on the hole sealing bag and the hole sealing bag is three-dimensional shape, the one end of slip casting pipe passes the hole sealing bag and wears out and enter into the anchor section, the other end stretches out anchor rope drilling, the one end of the slip casting pipe that gets into anchor rope drilling is provided with first grout outlet, the slip casting liquid pours into the anchor section through first grout outlet; the anchor cable in the anchoring section has a good anchoring acting point, so that the effect of supporting is achieved; the anchor cable can be anchored quickly, so that the construction time is saved, and the working efficiency is improved; the grouting liquid of the first grout outlet is provided with pressure when entering the anchoring section, and the grouting liquid is filled more fully in the anchoring section.
Description
Technical Field
The utility model belongs to the technical field of mine tunnel engineering is strutted, concretely relates to anchor rope extension slip casting anchor.
Background
The anchor cable is a common active supporting tool for mine tunnels and tunnel engineering, is widely applied, but when the anchor cable encounters soft rock (coal) and broken rock mass, the anchoring force point is not good, and the pretightening force of the anchor cable cannot meet the design requirement, so that the due supporting effect cannot be achieved. In the engineering, a grouting anchor cable is adopted, but end anchoring or lengthened anchoring is difficult to realize, and pretightening force cannot be applied.
The anchoring length and the anchoring depth need to be adjusted according to different grouting engineering requirements, the reasonable control of the anchoring section of the anchor cable can effectively improve the pre-tightening length of the anchor cable, and the pre-stress of the anchor cable can be better transmitted to the inside of a wider rock body. In the prior art, when the high-strength prestressed grouting anchor cable is used for stably supporting a coal mine roadway and a side slope, the reasonable length of the anchor cable end of the anchor cable is often ignored for improving the anchoring force of the anchor cable anchoring section.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an anchor rope extension slip casting anchor to solve the problem that above-mentioned prior art exists, the utility model discloses a mode of hole sealing bag hole sealing falls into two parts with anchor rope drilling, and the first half carries out the slip casting to the country rock to anchor to the anchor rope simultaneously, can normally stretch-draw after the slip casting anchor to the design pretightning force, make the anchor rope have good impetus, play due supporting effect.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an anchor cable lengthening grouting anchoring device, which comprises an anchor cable, a grouting pipe, a hole sealing bag and a fixing piece;
one end of the anchor cable penetrates through the hole sealing bag and extends into the bottom of the anchor cable drill hole, the other end of the anchor cable extends out of the anchor cable drill hole, and an anchoring section is formed between the hole sealing bag and the bottom of the anchor cable drill hole;
the hole sealing bag is provided with a through hole, the hole sealing bag is in a three-dimensional shape and has elasticity, one end of the grouting pipe penetrates through the hole sealing bag and penetrates out of the hole sealing bag to enter the anchoring section, the other end of the grouting pipe extends out of the anchor rope drilling hole, one end of the grouting pipe entering the anchoring section is provided with a first grout outlet, and grouting liquid is injected into the anchoring section through the first grout outlet;
the fixing piece is arranged at the hole opening of the anchor cable drilling hole and used for fixing the anchor cable.
According to the anchor cable lengthening, grouting and anchoring device, preferably, a second grout outlet is formed in the grouting pipe, and grouting liquid is injected into the hole sealing pocket through the second grout outlet;
and a one-way valve is arranged at the second slurry outlet.
According to the anchor rope extension slip casting anchor device, preferably, the fixing piece comprises an anchor rope lockset and an anchor rope tray.
According to the anchor cable lengthening grouting anchoring device, preferably, a blasting valve is installed at the first grout outlet, and grouting liquid is injected into the anchoring section through the blasting valve;
the pressure value born by the explosion valve is larger than that born by the one-way valve.
According to the anchor cable lengthening grouting anchoring device, preferably, a pipe plug is further arranged at the front end of the blasting valve and used for blocking leakage of grouting liquid.
According to the anchor cable lengthening grouting anchoring device, preferably, the position of the hole sealing bag in the anchor cable drilling hole can be moved.
According to the anchor rope lengthening grouting anchoring device, preferably, the grouting liquid is a quick-setting grouting material.
According to the anchor cable lengthening grouting anchoring device, preferably, the grouting pipe is an explosion-proof steel pipe or an explosion-proof aluminum-plastic pipe.
According to the anchor cable lengthening grouting anchoring device, preferably, the diameter of the grouting pipe and the diameter of the anchor cable are smaller than the diameter of the anchor cable drill hole.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
in the lengthened anchor device for the anchor cable, the hole sealing bag divides the anchor cable drill hole into two parts, the first half part performs grouting on the surrounding rock and simultaneously anchors the anchor cable, the second half part is still a free section, and the anchor cable can be normally tensioned to the design pretightening force after grouting anchoring, so that the anchor cable has good anchoring force point and plays a role in supporting; the anchor cable can be anchored quickly by adopting the quick-setting grouting material, so that the construction time is saved, and the working efficiency is improved; the use has elastic hole sealing bag to guarantee at the in-process that the slip casting liquid pours into the hole sealing bag into, the hole sealing bag can be fine expand and with the good laminating of the inner wall of anchor rope drilling for the anchor section forms a good airtight space, installs the explosion valve on the slip casting pipe, guarantees that the slip casting liquid can have certain pressure when getting into the anchor section, and the thick liquid area is pressed and is poured into the anchor section and fill the anchor rope drilling crack around, and the thick liquid is filled more in the anchor section is filled.
Drawings
Fig. 1 is a schematic structural view of an anchoring device in an embodiment of the present invention;
fig. 2 is a schematic structural view of a grouting pipe in an embodiment of the present invention;
fig. 3 is another schematic structural diagram of the grouting pipe in the embodiment of the present invention.
In the figure:
1. sealing the hole by a bag; 2. a grouting pipe; 3. a first slurry outlet; 301. a blast valve; 4. pipe blocking; 5. an anchoring section; 6. a fixing member; 601. an anchoring tray; 602. anchoring the lock; 7. an anchor cable; 8. drilling an anchor cable; 9. a second slurry outlet; 901. a one-way valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The invention will be described in detail below with reference to the accompanying drawings and embodiments, it being noted that the embodiments and features of the embodiments can be combined with each other without conflict.
As shown in fig. 1 to 3, the utility model provides an anchor rope lengthening grouting anchoring device, which comprises an anchor rope 7, a grouting pipe 2, a hole sealing bag 1 and a fixing member 6, wherein one end of the anchor rope 7 passes through the hole sealing bag 1 and extends into the bottom of an anchor rope drill hole 8, the other end extends out of the anchor rope drill hole 8, an anchoring section 5 is formed between the hole sealing bag 1 and the bottom of the anchor rope drill hole 8, a free section is arranged between the hole sealing bag 1 and the anchor rope drill hole 8, a through hole is arranged on the hole sealing bag 1, the hole sealing bag 1 is in a three-dimensional shape and has elasticity, one end of the grouting pipe 2 passes through the hole sealing bag 1 and penetrates out into the anchoring section 5, the two ends of the hole sealing bag on the grouting pipe are tightly tied by using an adhesive tape or an iron wire, the outflow of grouting liquid caused by the leakage of the hole sealing bag is prevented, the other end extends out of the anchor rope drill hole 8, further, the first grout outlet 3 is arranged on the pipe wall of the grouting pipe 2, grouting liquid is injected into the anchoring section 5 through the first grout outlet 3, a fixing piece 6 is arranged at the hole opening of the anchor rope drilling hole 8, and the fixing piece 6 is used for fixing the grouting pipe 2 and the anchor rope 7.
Briefly, when the anchor cable 7 is constructed, the anchor cable 7 is passed through the through hole on the hole sealing bag 1 and enters the anchor cable drill hole 8, the depth of the anchor cable drill hole 8 is determined according to the anchoring length, the length of the anchor cable 7 passing through the hole sealing bag 1 is the anchoring distance, the diameter of the anchor cable drill hole 8 in the embodiment of the utility model is phi 42mm to phi 50mm (for example, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm), the grouting pipe 2 passes through the hole sealing bag 1, the part of the grouting pipe in the bag is arranged on the grouting pipe 2, the second grout outlet 9 is also arranged on the pipe wall of the grouting pipe 2, the grouting liquid is injected into the hole sealing bag 1 through the second grout outlet 9, the second grout outlet in the embodiment of the utility model is further provided with a one-way valve 901, the grouting liquid is injected into the bag 1 through the one-way valve 901, and the one-way valve is arranged to prevent the grouting liquid from flowing back into the grouting pipe 2, the pressure born by the one-way valve is less than the pressure born by the explosion valve, when grouting and anchoring are carried out, the grouting pipe 2 is connected with a grouting pump, grouting liquid passes through the second grout outlet 9, the hole sealing bag 1 is firstly expanded, the expanded hole sealing bag 1 tightly coats the anchor rope 1 positioned in the through hole, so that a closed space is formed between the hole sealing bag 1 and the bottom of the anchor rope drill hole 8, the grouting material is rapidly solidified and plays a role in plugging, the anchor rope drill hole 8 is divided into two parts, the anchoring section 5 is grouted by the first half part and the anchor rope 7 is anchored at the same time, the second half part is a free section, the anchor rope 7 can be normally tensioned to the designed pre-tightening force after grouting and anchoring, grouting is continued after the hole sealing bag 1 is expanded, when the pressure value of grouting liquid in the pipe is more than the pressure born by the explosion valve, the explosion valve 301 of the first grout outlet 3 is opened, the grouting liquid enters the anchoring section, can play the extension anchor, mounting 6 is used for firm anchor rope 7.
Further, the fixing element 6 is an anchor cable tray 601 and an anchor cable lock 602, and after grouting is completed, the anchor cable tray and the anchor cable lock are installed, and the anchor cable is tensioned. Further, a bursting valve 301 is installed at the first grout outlet 3, the bursting valve 301 is installed on the pipe wall of the grouting pipe 2, grouting liquid is injected into the anchoring section 5 through the bursting valve 301, as the hole sealing bag 1 divides the anchor rope drill hole 8 into two parts, when grouting is continuously performed into the grouting pipe 2, the pressure in the grouting pipe 2 continuously rises, when the pressure in the grouting pipe 2 reaches the threshold value of the bursting valve 301, the bursting valve 301 is opened, grouting liquid is injected into the anchoring section 5 from the bursting valve 301, a pipe plug 4 is further installed at the front end of the bursting valve 301, one end of the grouting pipe 2 is plugged to prevent the grouting liquid from flowing out from the end part of the grouting pipe 2, so that the grouting liquid in the grouting pipe 2 can only flow out from the bursting valve 301, the grouting liquid has a certain pressure when entering the anchoring section 5, the grouting liquid with the pressure is injected into the anchoring section 5 and fills cracks around the anchor rope drill hole, and the grouting liquid is filled more firmly in the anchoring section 5, the anchor effect is strengthened, the embodiment of the utility model provides an in, a diameter slightly is greater than slip casting pipe diameter steel sheet can be selected to the tip of slip casting pipe 2, with the steel sheet welding at the tip of slip casting pipe, can guarantee the inside space of forming a relative seal of slip casting pipe like this, does not have the condition that the pressure release appears in the tip, can increase the intraductal pressure of slip casting fast, improves constructor's work efficiency, save time.
The explosion valve 301 and the pipe plug 4 penetrate through the hole sealing bag 1 and are located in the anchoring section 5, when the grouting pipe 2 is used for grouting to the anchoring section 5, the hole sealing bag 1 is firstly expanded and filled with grouting liquid, the hole sealing bag 1 filled with the grouting liquid is expanded to be full of the anchor rope drill hole 8 and is tightly attached to the inner wall of the anchor rope drill hole 8, the anchor rope drill hole 8 is divided into two parts, the grouting liquid is continuously filled into the grouting pipe 2, at the moment, the pressure in the grouting pipe 2 gradually rises, when the pressure in the grouting pipe 2 reaches the threshold value of the explosion valve 301, the explosion valve 301 is opened, and the grouting liquid of the grouting pipe flows out of the explosion valve 301 and is injected into the anchoring section 5.
Further, the position of the hole sealing bag 1 can be adjusted on the grouting pipe according to the site construction requirements, the anchoring length is adjusted, and the elastic hole sealing bag 1 is used for well expanding and well fitting with the inner wall of the anchor cable drill hole in the process of injecting the grouting liquid into the hole sealing bag.
Further, the utility model provides an in the embodiment of the utility model the slip casting is quick setting type slip casting material, for example: sulphoaluminate cement clinker, quicklime, gypsum and the like; after grouting is completed, the grouting body can be quickly solidified, anchor cable tensioning can be implemented after solidification, besides the quick-setting grouting material, polyurethane polymer materials can be selected, for example: marilsan, Bordetella, etc.
Further, the grouting pipe 2 can be an explosion-proof steel pipe or an explosion-proof plastic pipe, and because the grouting pipe 2 is subjected to certain pressure in the grouting process, for the safety in the construction process, the grouting pipe in the embodiment of the utility model is an explosion-proof steel pipe, and can easily enter the anchor cable drilling hole 8 by utilizing the rigidity of the steel pipe; to facilitate entry of the grout tube 2 and cable 7 into the cable bore hole 8, the sum of the cable diameter and the grout tube diameter is less than the cable bore hole diameter.
Specifically, during construction of the anchor cable 7, the anchor cable 7 penetrates through the through hole in the hole sealing bag 1 and enters the anchor cable drill hole 8, during site construction, the entering depth of the anchor cable 7 can be determined according to the anchoring length, the grouting pipe 2 penetrates through the hole sealing bag 1 and enters the anchoring section 5, grouting is performed on the anchoring section 5 through the grouting pipe 2, during grouting, the hole sealing bag 1 expands first, the expanded hole sealing bag 1 is tightly attached to the inner wall of the anchor cable drill hole 8 to divide the anchor cable drill hole 8 into two parts, the grouting pipe 2 is filled with grouting liquid continuously, when the pressure in the grouting pipe 2 reaches the threshold value of the explosion valve 301, the explosion valve 301 is opened, the grouting liquid enters the anchoring section 5, the anchoring section 5 is filled with the grouting liquid, grouting is completed, so that the anchor cable 7 has a firm impact point, the due supporting effect of the anchor cable 7 is exerted, and the anchor cable 7 can be tensioned after the grouting liquid is quickly solidified, in addition, according to the needs of site operation, the position of the hole sealing bag 1 in the anchor cable drilling hole can be adjusted, and the hole sealing bag is fixed on the grouting pipe and moves together to adjust the length of the anchoring section 5.
The utility model discloses anchor rope extension anchor, hole sealing bag 1 divide into two parts with anchor rope drilling 8, and the first half carries out the slip casting to the country rock to anchor 7 simultaneously, and the latter half still is the free section, can normally stretch-draw to the design pretightning force after the slip casting anchor, makes the anchor rope have good anchor impetus, plays due supporting effect, adopts rapid hardening type slip casting material, can anchor 7 fast, practices thrift the engineering time, improves work efficiency; the use has elastic hole sealing bag 1 to guarantee injecting into the in-process of hole sealing bag 1 at the slip casting liquid, hole sealing bag 1 can be fine expand and with the tight laminating of the inner wall of anchor rope drilling 8 for anchor section 5 forms a good airtight space, installation blast valve 301 on slip casting pipe 2, guarantee that the slip casting liquid can have certain pressure when getting into anchor section 5, the slip casting liquid area is pressed and is injected into anchor section 5 and fill the crack around the anchor rope drilling 8, the thick liquid is more filled in that anchor section 5 was filled.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (9)
1. The anchor rope lengthening and grouting anchoring device is characterized by comprising an anchor rope, a grouting pipe, a hole sealing bag and a fixing piece;
one end of the anchor cable penetrates through the hole sealing bag and extends into the bottom of the anchor cable drill hole, the other end of the anchor cable extends out of the anchor cable drill hole, and an anchoring section is formed between the hole sealing bag and the bottom of the anchor cable drill hole;
the hole sealing bag is provided with a through hole, the hole sealing bag is in a three-dimensional shape and has elasticity, one end of the grouting pipe penetrates through the hole sealing bag and penetrates out of the hole sealing bag to enter the anchoring section, the other end of the grouting pipe extends out of the anchor rope drilling hole, one end of the grouting pipe entering the anchoring section is provided with a first grout outlet, and grouting liquid is injected into the anchoring section through the first grout outlet;
the fixing piece is arranged at the hole opening of the anchor cable drilling hole and used for fixing the anchor cable.
2. The anchor rope lengthening grouting anchoring device of claim 1, wherein a second grout outlet is further formed in the grouting pipe, and grouting liquid is injected into the hole sealing pocket through the second grout outlet;
and a one-way valve is arranged at the second slurry outlet.
3. The cable rope extension slip casting anchor of claim 1, wherein said anchor member includes a cable rope lock and a cable rope tray.
4. The anchor rope lengthening grouting anchoring device of claim 2, wherein a blast valve is installed at the first grout outlet, and the grouting liquid is injected into the anchoring section through the blast valve;
the pressure value born by the explosion valve is larger than that born by the one-way valve.
5. The anchor rope lengthening grouting anchoring device of claim 4, wherein a pipe plug is further arranged at the front end of the blasting valve and used for blocking leakage of the grouting liquid.
6. The anchor cable extension grouting anchor device of claim 1, wherein the position of the sealing bladder in the anchor cable bore hole is movable.
7. The anchor rope lengthening grouting anchor device according to claim 1, wherein the grouting liquid is a quick-setting grouting material.
8. The anchor rope lengthening, grouting and anchoring device of claim 1, wherein the grouting pipe is an explosion-proof steel pipe or an explosion-proof aluminum-plastic pipe.
9. The cable bolt extension slip casting anchor assembly of claim 1, wherein the diameter of said slip casting pipe and the diameter of said cable bolt are both smaller than the diameter of said cable bolt bore hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081234.4U CN211008701U (en) | 2019-11-27 | 2019-11-27 | Anchor rope extension slip casting anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081234.4U CN211008701U (en) | 2019-11-27 | 2019-11-27 | Anchor rope extension slip casting anchor |
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| Publication Number | Publication Date |
|---|---|
| CN211008701U true CN211008701U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922081234.4U Active CN211008701U (en) | 2019-11-27 | 2019-11-27 | Anchor rope extension slip casting anchor |
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| CN (1) | CN211008701U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282808A (en) * | 2020-09-29 | 2021-01-29 | 河南理工大学 | Large-mining-height rib-caving-prevention anchoring coal top injection device and using method thereof |
| CN114657984A (en) * | 2022-04-22 | 2022-06-24 | 东华理工大学 | Segmental grouting anchoring method for joint development high and steep rocky slope |
| CN114856666A (en) * | 2022-06-02 | 2022-08-05 | 中国矿业大学 | Underground engineering anchor rod cable support accurate hole sealing device and integrated anchor grouting method |
-
2019
- 2019-11-27 CN CN201922081234.4U patent/CN211008701U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282808A (en) * | 2020-09-29 | 2021-01-29 | 河南理工大学 | Large-mining-height rib-caving-prevention anchoring coal top injection device and using method thereof |
| CN112282808B (en) * | 2020-09-29 | 2023-03-10 | 河南理工大学 | Large mining height and anti-caving coal anchoring top injection device and using method thereof |
| CN114657984A (en) * | 2022-04-22 | 2022-06-24 | 东华理工大学 | Segmental grouting anchoring method for joint development high and steep rocky slope |
| CN114856666A (en) * | 2022-06-02 | 2022-08-05 | 中国矿业大学 | Underground engineering anchor rod cable support accurate hole sealing device and integrated anchor grouting method |
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