CN210768867U - Secondary multi-section anchoring anchor cable - Google Patents
Secondary multi-section anchoring anchor cable Download PDFInfo
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- CN210768867U CN210768867U CN201921822136.5U CN201921822136U CN210768867U CN 210768867 U CN210768867 U CN 210768867U CN 201921822136 U CN201921822136 U CN 201921822136U CN 210768867 U CN210768867 U CN 210768867U
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- anchor
- section
- anchoring
- anchor rope
- rope body
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Abstract
The utility model discloses a secondary multistage anchor rope, secondary multistage anchor rope includes the anchor rope body of rod and tray, the anchor rope body of rod includes the first anchor section, a plurality of free section and a plurality of anchor section, anchor section and free section interval are connected in turn, fixing device is established with the hookup location of free section and the hookup location cover of anchor section and next free section to the first anchor section, fixing device links firmly on the anchor rope body of rod, slider is established with the hookup location cover of anchor section to the free section, slider can slide on the anchor rope body of rod, be connected with two springs between fixing device and the slider, be equipped with the anchoring agent in the anchor section, exert the pretightning force to the steel strand wires of the anchor rope body of rod and extrude in order to reach local anchor's effect. The utility model discloses a secondary multistage anchor rope can effectively disperse the anchor rope atress, and better adaptation deep country rock deformation mechanism solves and buries the problem that the tunnel subregion breaks and anchor rope anchor section stress concentration deeply.
Description
Technical Field
The utility model relates to a colliery is anchor rope technical field for tunnel supporting, especially relates to a secondary multistage anchor rope.
Background
With the mining of mines, roadway support becomes more and more important, and for coal mines, most of the roadway support adopts anchor rods and anchor cables to achieve a good support effect. However, most of anchor cable supports adopt end anchors and full anchors, the end anchors cause local stress concentration of the anchor cable, and the full anchors cause a great amount of waste of anchoring agent. Therefore, the segmented anchoring is more suitable for the formation condition. Meanwhile, the anchor cable is stressed greatly in deep-buried hard surrounding rocks, so that how to disperse the stress of the anchor cable is important. Through the research of experts at home and abroad, the damage of a deep-buried roadway and the damage of a shallow-buried roadway are obviously different, and the trend of interval damage of the deep-buried roadway is found, so that the technical personnel in the field already put forward a calculation formula of the width of a damaged area. Therefore, in order to adapt to the surrounding rock change mechanism of the deep-buried roadway and save the anchoring agent, the anchor cable for supporting the coal mine roadway, which can effectively disperse the stress of the anchor cable and better adapt to the deformation mechanism of the deep surrounding rock, is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a secondary multistage anchor rope, the deep-buried tunnel subregion of solving among the prior art is broken and anchor rope anchor section stress concentration, the extravagant problem in a large number of anchoring agent.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a secondary multistage anchor rope, including the anchor rope body and establish the tray on the anchor rope body, the anchor rope body includes first anchor section, a plurality of free section and a plurality of anchor section, anchor section with the free section interval is connected alternately, the first anchor section with the hookup location of free section and the hookup location of anchor section and next free section all overlaps and is equipped with fixing device, fixing device links firmly on the anchor rope body, the free section with the hookup location cover of anchor section is equipped with slider, slider can slide on the anchor rope body, be connected with two the spring between fixing device and the slider, be provided with the anchoring agent on the anchor section, to the steel strand wires of the anchor rope body of rod exert the pretightning force can be to wrapping up in the anchor section the anchoring agent extrudes in order to reach local anchoring's effect, the fixing device and the sliding device can seal the extruded anchoring agent on the anchoring section.
Further, fixing device is including being annular iron sheet and geotechnological cloth, the outer circumference cladding of iron sheet has geotechnological cloth.
Further, slider is including being annular iron sheet and geotechnological cloth, all the cladding has on iron sheet circumference and the inner ring geotechnological cloth.
Further, the anchoring agent is a resin medicated roll.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the secondary multi-section anchoring anchor cable of the utility model achieves the effect of extruding the anchoring agent according to the flexibility of the steel strand of the anchor cable and the straightening characteristic when being pulled; meanwhile, the stress of the anchor cable is dispersed according to a multi-section anchoring mechanism, so that the stress concentration of the anchor cable is avoided; according to the aperture matching principle, the sliding device is effectively prevented from sliding in advance; and the elasticity of the spring is utilized to enable the sliding device to slide, so that the function of plugging the anchoring agent is achieved.
The utility model discloses a secondary multistage anchor rope belongs to a supporting construction of mine field secondary multistage anchor, the supporting construction of specially adapted soft stratum and deep stratum. The secondary multi-section anchoring anchor cable solves the problems of partition fracture of a deep-buried roadway and stress concentration of the anchor cable anchoring section, can achieve the purpose of dispersing the stress of the anchor cable, can preset the length and the position of the anchoring section according to the field condition, and is well suitable for the deep surrounding rock deformation mechanism.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
Fig. 1 is a schematic structural view of the secondary multi-segment anchoring anchor cable of the present invention before secondary anchoring;
fig. 2 is a cross-sectional view of the secondary multi-segment anchor cable of the present invention;
fig. 3 is a schematic structural view of the secondary multi-segment anchor cable of the present invention after secondary anchoring;
fig. 4 is a schematic structural view of the fixing device of the secondary multi-segment anchoring anchor cable of the present invention;
fig. 5 is a schematic structural view of the sliding device of the secondary multi-segment anchor cable of the present invention.
Description of reference numerals: 1. a first primary anchoring section; 2. a fixing device; 3. a spring; 4. a sliding device; 5. an anchoring agent; 6. a free section; 7. an anchoring section; 8. geotextile; 9. iron sheets.
Detailed Description
As shown in fig. 1 to 5, this embodiment provides a secondary multi-segment anchor cable, which includes an anchor cable body and a tray disposed on the anchor cable body, wherein the anchor cable body includes a first anchoring section 1, a plurality of free sections 6 and a plurality of anchoring sections 7, the anchoring sections 7 and the free sections 6 are alternately connected at intervals, a fixing device 2 is sleeved on a connection position of the first anchoring section 1 and the free section 6 and a connection position of the anchoring section 7 and a next free section, the fixing device 2 is fixedly connected to the anchor cable body, a sliding device 4 is sleeved on a connection position of the free section 6 and the anchoring section 7, the sliding device 4 can slide on the anchor cable body, two springs 3 are connected between the fixing device 2 and the sliding device 4, an anchoring agent 5 is disposed on the anchoring section 7, and pre-tightening force applied to a steel strand of the anchor cable body can extrude the anchoring agent 5 wrapped in the anchoring section 7 In order to achieve a local anchoring effect, the fixing device 2 and the sliding device 4 can seal the extruded anchoring agent 5 on the anchoring section 7.
The secondary multi-section anchoring anchor cable achieves the effect of extruding the anchoring agent 5 according to the flexibility of the anchor cable steel strand and the straightening characteristic when being pulled; meanwhile, the stress of the anchor cable is dispersed according to a multi-section anchoring mechanism, so that the stress concentration of the anchor cable is avoided; according to the aperture matching principle, the sliding device 4 is effectively prevented from sliding in advance; the sliding device 4 is slid by the elasticity of the spring 3, and the anchor 5 is blocked.
Wherein, the anchor rope body of rod can set up a plurality of anchor sections 7 according to on-the-spot needs, and anchor agent 5 puts into drilling with the anchor rope body of rod simultaneously, extrudees the anchor agent 5 of putting in advance through the tensile extrusion of steel strand wires, and the anchor agent 5 shutoff of will extruding through fixed fixing device 2 reaches the effect of anchor in fixed within range. For deep surrounding rock, the situation of regional crushing often occurs, anchor ropes in a crushing region are difficult to play the self role, the interval between the crushing region and a non-crushing region can be calculated through theoretical calculation, and the anchoring distance is adjusted according to the actual situation on site, so that the stress of the anchor ropes can be effectively dispersed, the self characteristic of the anchor ropes can be fully played, and the situation of the surrounding rock on site can be better adapted.
The secondary multi-section anchoring anchor rope is particularly suitable for surrounding rocks and soft surrounding rocks which are broken at deep intervals, the specific anchoring position of the anchor rope can be set according to actual conditions on site in construction engineering, pre-tightening force is applied through the anchor rope steel strands to extrude anchoring agents 5 wrapped in the middle of the anchor rope, and the effect of local anchoring is achieved.
Specifically, fixing device 2 is including being annular iron sheet 9 and geotechnological cloth 8, the outer periphery cladding of iron sheet 9 has geotechnological cloth 8.
Specifically, slider 4 is including being annular iron sheet 9 and geotechnological cloth 8, all the cladding is gone up to iron sheet 9 outer circumference and inner ring has geotechnological cloth 8.
Specifically, the anchoring agent 5 is a resin medicated roll.
The utility model discloses a secondary multistage anchor rope can effectively disperse the anchor rope atress, and better adaptation deep country rock deformation mechanism solves and buries the problem that the tunnel subregion breaks and anchor rope anchor section stress concentration deeply.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (4)
1. A secondary multi-section anchoring anchor rope is characterized by comprising an anchor rope body and a tray arranged on the anchor rope body, wherein the anchor rope body comprises a first anchoring section, a plurality of free sections and a plurality of anchoring sections, the anchoring sections and the free sections are alternately connected at intervals, the connecting position of the first anchoring section and the free section and the connecting position of the anchoring section and the next free section are both sleeved with fixing devices, the fixing devices are fixedly connected onto the anchor rope body, the connecting position of the free section and the anchoring section is sleeved with a sliding device, the sliding device can slide on the anchor rope body, two springs are connected between the fixing devices and the sliding device, anchoring agents are arranged on the anchoring sections, pre-tightening force is applied to steel strands of the anchor rope body, the anchoring agents wrapped in the anchoring sections can be extruded out to achieve the effect of local anchoring, the fixing device and the sliding device can seal the extruded anchoring agent on the anchoring section.
2. A secondary multi-segment anchor bolt according to claim 1, wherein said fixing means comprises an annular iron sheet and a geotextile, said iron sheet being circumferentially coated with said geotextile.
3. A secondary multi-segment anchor bolt according to claim 1, wherein said sliding means comprises an annular iron sheet and a geotextile, said geotextile being coated on both the outer circumference of said iron sheet and the inner ring.
4. A secondary multi-segment anchor line according to any one of claims 1 to 3, wherein said anchoring agent is a resin cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822136.5U CN210768867U (en) | 2019-10-28 | 2019-10-28 | Secondary multi-section anchoring anchor cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822136.5U CN210768867U (en) | 2019-10-28 | 2019-10-28 | Secondary multi-section anchoring anchor cable |
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| Publication Number | Publication Date |
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| CN210768867U true CN210768867U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921822136.5U Active CN210768867U (en) | 2019-10-28 | 2019-10-28 | Secondary multi-section anchoring anchor cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593929A (en) * | 2019-10-28 | 2019-12-20 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Secondary multi-section anchoring anchor cable and use method thereof |
-
2019
- 2019-10-28 CN CN201921822136.5U patent/CN210768867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593929A (en) * | 2019-10-28 | 2019-12-20 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Secondary multi-section anchoring anchor cable and use method thereof |
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