CN205189893U - Be used for a lane coal column to wearing reinforced (rfd) supporting construction - Google Patents
Be used for a lane coal column to wearing reinforced (rfd) supporting construction Download PDFInfo
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- CN205189893U CN205189893U CN201520924215.2U CN201520924215U CN205189893U CN 205189893 U CN205189893 U CN 205189893U CN 201520924215 U CN201520924215 U CN 201520924215U CN 205189893 U CN205189893 U CN 205189893U
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Abstract
The utility model relates to a be used for a lane coal column to wearing reinforced (rfd) supporting construction installs concrete form respectively and pours the concrete wall who forms certain thickness in coal column both sides, after treating that the wall body reaches certain intensity, skyhook, reinforcing bar net, reinforcing bar joist, tray, nut are tentatively strutted in proper order, then, along coal column longitudinal separation certain distance, adopt the anchor rope machine to pierce through concrete wall and coal column and acquire a set of drilling, penetrate drilling respectively with two anchor ropes, it is last, pass the anchor rope connector in proper order with two anchor rope afterbodys of homonymy to high pretightning force is applyed to the installation tool to lock. With consolidate the coal column method and compared wearing the anchor rope in the past, the pretightning force can be applyed to two adjacent anchor ropes from top to bottom simultaneously to the anchor rope connector to apply coal column surface with high pretightning force through concrete wall, realize the most genuine three -dimensional pressurized of the coal petrography body, but the dilatation of effective control coal column warp, make concrete wall and coal column form common supporting body, ensure effectively that the coal column stably.
Description
Technical field
The utility model relate to a kind of for coal column between lane to the supporting and protection structure of wearing reinforcing, belong to the supporting field in mine.
Background technology
For effectively solving the problem such as ventilation, gas drainage under suction and transport that highly gassy mine recovery process exists, work plane is arranged and is often adopted many lanes arrangement system, namely need to arrange section track (or transport) gallery and gas drainage under suction lane in work plane side, wherein gas drainage under suction lane will be also lower work plane service after this working face extraction terminates simultaneously.Therefore, coal column between the lane between gas drainage under suction lane and section track (or transport) gallery, to successively be subject to the impact of both sides tunnelling, this working face extraction and lower working face extraction overall process, roadway deformation destroys abnormal serious, if can not get effective maintenance, to be there is the distortion of dilatation on a large scale in coal column, cave in, have a strong impact on work plane high winning technology until destroy.The bolt-mesh-anchor support technology that adopts carried out coal column reinforcing between lane more in the past, though have certain effect, cannot give the enough control effects of coal column on the whole, roadway deformation destroys serious.
Application number is 200720131114.5 " a kind of to drawing anchor cable ", application number be 201310014594.7 " between crossheading lane, a kind of many lanes bog-head coal post reinforce method " and application number be 201410612449.3 " a kind of prevent coal column from impacting protect lane method ", the feature that above-mentioned three patents are large according to anchor cable length, tensile strength is high, propose and adopt anchor cable (or reinforcing bar) to wearing the method for reinforcing coal column, institute's employing method is all that single anchor cable (or reinforcing bar) is through the pretension reinforcing respectively in both sides after coal column; But from profound level, above-mentioned two-ended cables supporting still belongs to a supporting, namely the high pretightening force that two-ended cables provides can only be applied on rib by pallet, high pretightening force sphere of action is only limitted to pallet near zone, and cannot jointly load between neighbouring anchor cable, and then overall confined pressure cannot be provided to coal column; In addition, between lane, coal column is under repeatedly mining influence, and the distortion of dilatation on a large scale very easily occurs, the strong dilatation distortion of coal column between the uncontrollable lane of surperficial support system of steel mesh reinforcement and steel band.
Utility model content
The problems such as little, the adjacent anchor cable of anchor cable pretightning force sphere of action of coal column existence between lane cannot load jointly and dilatation distortion cannot effectively control are reinforced for overcoming two-ended cables in the past, the utility model proposes a kind of for coal column between lane to the supporting and protection structure of wearing reinforcing, this supporting and protection structure can realize the common loading of adjacent anchor cable, expand the sphere of action of anchor cable pretightning force, and effectively can control coal column superficial part dilatation distortion, improve the overall control effects of coal column, ensure that coal column is stablized.
For achieving the above object, the utility model by the following technical solutions: a kind of for coal column between lane to the supporting and protection structure of wearing reinforcing, between lane, concrete blinding is installed respectively in coal column both sides, and build formed certain thickness concrete wall; Reach after some strength until concrete wall, adopt anchor pole, steel mesh reinforcement, steel bar joist tentatively to reinforce; Along coal column longitudinal separation certain distance, adopt windlass to obtain upper and lower one group of boring at concrete wall and coal column side, two anchor cables are penetrated respectively in above-mentioned upper and lower boring; Respectively homonymy two anchor cable afterbodys are passed anchor cable connector successively, and lockset is installed along concrete wall pretension.
Further, as a kind of concrete form of structure, the thickness of concrete wall described in the utility model is 200 ~ 600mm, and upper and lower one group of spacing of wells b is 1200 ~ 2200mm.
Further, as a kind of concrete form of structure, anchor pole described in the utility model selects diameter to be the high-strength screw-thread steel anchor pole of 16 ~ 20mm, anchor spacing 700 ~ 900mm, array pitch 700 ~ 900mm.
Further, as a kind of concrete form of structure, anchor cable described in the utility model selects diameter to be 1 × 19 steel strand of 17 ~ 22mm, and pretightning force is 120-250KN, and anchor cable length L is L=a+b+ (400 ~ 600) mm, and wherein a is coal pillar width.
The beneficial effects of the utility model are: compared with reinforcing the method for coal column between lane with two-ended cables in the past, high pretightening force can be applied to neighbouring two anchor cables by anchor cable connector simultaneously, and the certain thickness high-strength concrete body of wall set up in coal column both sides, be equivalent to be applied with large area high strength Stress transmit plate on coal column surface, anchor cable high pretightening force can be uniformly applied to coal column surface by this Stress transmit plate, the surperficial confined pressure of very big raising, truly realizes coal and rock three dimension stress; In addition, because concrete wall have stronger rigidity, when coal column generation dilatation is out of shape, coal column development of deformation can effectively be suppressed.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is for implementing many lanes of the present utility model arrangement system top view.
Fig. 2 is I-I sectional view of Fig. 1.
Fig. 3 is the II-II sectional view of Fig. 1.
1. upper curtate tracks (or transport) gallery, 2. gas drainage under suction lane, 3. coal column between lane in figure, 4. concrete wall, 5. anchor pole, 6. steel mesh reinforcement, 7. steel bar joist, 8. pallet, 9. hole, 10. anchor cable, 11. anchor cable connectors, 12. anchor cable locks, 13. nuts, a. coal pillar width, b. coal column boring longitudinal pitch.
Detailed description of the invention
Further describe the utility model patent below in conjunction with embodiment in accompanying drawing, its concrete implementation step is as follows:
Step one, between lane, concrete blinding is installed respectively in coal column 3 both sides, and build and form certain thickness concrete wall 4, concrete wall body thickness is 200 ~ 600mm.
Step 2, after concrete wall 4 reaches some strength, skyhook 5, steel mesh reinforcement 6, steel bar joist 7, pallet 8 and nut 13 successively, and pretightning force is applied to anchor pole, complete preliminary supporting.Wherein, anchor pole 5 selects diameter to be the high-strength screw-thread steel anchor pole of 16 ~ 20mm, anchor spacing 700 ~ 900mm, array pitch 700 ~ 900mm; The parameter incorporation engineering practice of steel mesh reinforcement, joist is determined.
Step 3, along coal column longitudinal separation certain distance b, adopts anchor cable rig to drill through upper and lower one group of boring 9 at concrete wall 4 and coal column side 3, is penetrated respectively in above-mentioned upper and lower boring by two anchor cables 10.Wherein the longitudinal pitch b of upper and lower two borings are 1200 ~ 2200mm, and anchor cable 10 selects diameter to be 1 × 19 steel strand of 17 ~ 22mm.
Homonymy two anchor cable afterbodys are passed anchor cable connector 11, and install lockset 12 by step 4 respectively successively, apply pretightning force along concrete wall.Wherein, the pretightning force of applying is 120-250KN, and anchor cable length L is L=a+b+ (400 ~ 600) mm, and wherein a is coal pillar width.Due to anchor cable connector technology disclosed in this area, do not specifically describe at this.
Repeat above-mentioned steps, until whole coal column supporting completes.
A kind of supporting and protection structure of reinforcing for coal column between lane described in the utility model, effectively can realize adjacent anchor cable jointly to load, anchor cable high pretightening force large area, evenly to spread, truly realize coal column three dimension stress, and can effectively suppress coal column superficial part pine to expand distortion, realize the integrated carrying of concrete wall, coal column and anchor cable, be beneficial to tunnel long-term stability.
It should be noted that; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned example; the change that those of ordinary skill in the art makes in essential scope of the present utility model, remodeling, interpolation or replacement, all should be covered by within protection domain of the present utility model.
Claims (4)
1. for coal column between lane to a supporting and protection structure of wearing reinforcing, it is characterized in that: between lane, concrete blinding is installed respectively in coal column (3) both sides, and build formed certain thickness concrete wall (4); Reach after some strength until concrete wall, skyhook (5), steel mesh reinforcement (6), steel bar joist (7), pallet (8), nut (13) successively, and pretightning force is applied to anchor pole, complete preliminary supporting; Along coal column longitudinal separation certain distance b, adopt anchor cable machine to penetrate concrete wall and the upper and lower one group of boring (9) of coal column side acquisition, two anchor cables (10) are penetrated in above-mentioned upper and lower boring respectively; Respectively homonymy two anchor cable afterbodys are passed anchor cable connector (11) successively, and lockset (12) is installed, apply high pretightening force along concrete wall.
2. according to claim 1 a kind of for coal column between lane to the supporting and protection structure of wearing reinforcing, it is characterized in that: the thickness of concrete wall (4) is 200 ~ 600mm, upper and lower one group of spacing of wells b is 1200 ~ 2200mm.
3. according to claim 1 a kind of for coal column between lane to the supporting and protection structure of wearing reinforcing, it is characterized in that: anchor pole (5) selects diameter to be the high-strength screw-thread steel anchor pole of 16 ~ 20mm, anchor spacing 700 ~ 900mm, array pitch 700 ~ 900mm.
4. according to claim 1 a kind of for coal column between lane to the supporting and protection structure of wearing reinforcing, it is characterized in that: anchor cable (10) selects diameter to be 1 × 19 steel strand of 17 ~ 22mm, pretightning force is 120-250KN, anchor cable length L is L=a+b+ (400 ~ 600) mm, and wherein a is coal pillar width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924215.2U CN205189893U (en) | 2015-11-19 | 2015-11-19 | Be used for a lane coal column to wearing reinforced (rfd) supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924215.2U CN205189893U (en) | 2015-11-19 | 2015-11-19 | Be used for a lane coal column to wearing reinforced (rfd) supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205189893U true CN205189893U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520924215.2U Expired - Fee Related CN205189893U (en) | 2015-11-19 | 2015-11-19 | Be used for a lane coal column to wearing reinforced (rfd) supporting construction |
Country Status (1)
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| CN (1) | CN205189893U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401604A (en) * | 2016-12-12 | 2017-02-15 | 煤炭科学技术研究院有限公司 | Method for strengthening large coal pillar low in intensity of fracture development |
| CN106677796A (en) * | 2017-02-01 | 2017-05-17 | 连小林 | Supporting method of intersection of Y-type roadway |
| CN106884655A (en) * | 2017-01-10 | 2017-06-23 | 山东建筑大学 | A kind of two-way reinforcement means of gob side entry driving coal column |
| CN107060758A (en) * | 2017-04-18 | 2017-08-18 | 辽宁工程技术大学 | A kind of section fender, which is stayed, sets construction method |
| CN107313789A (en) * | 2017-08-31 | 2017-11-03 | 中国电建集团成都勘测设计研究院有限公司 | Large underground hole surrounding rock supporting structure under large ground pressure |
| CN108590723A (en) * | 2018-05-24 | 2018-09-28 | 中煤能源研究院有限责任公司 | Gob side entry driving fender erosion control release is to drawing anchoring integral structure and construction method |
| CN110424762A (en) * | 2019-07-29 | 2019-11-08 | 西安建筑科技大学 | A kind of cave dwelling hardened system |
| CN110486016A (en) * | 2019-08-16 | 2019-11-22 | 山东科技大学 | A method of improving strip coal pillar stability |
| CN111411978A (en) * | 2020-03-31 | 2020-07-14 | 昆明理工大学 | Clamping plate type supporting structure for adjacent ore removal roadways and construction process thereof |
| CN112483147A (en) * | 2020-12-25 | 2021-03-12 | 江苏宝利国际投资股份有限公司 | Opposite-penetrating double-locking anchor cable supporting system for reinforcing soft rock columns of double-hole highway tunnel |
| CN112523791A (en) * | 2020-12-25 | 2021-03-19 | 江苏宝利路面材料技术有限公司 | Annular anchor cable supporting system for reinforcing rock wall in small-clear-distance tunnel of highway |
-
2015
- 2015-11-19 CN CN201520924215.2U patent/CN205189893U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401604A (en) * | 2016-12-12 | 2017-02-15 | 煤炭科学技术研究院有限公司 | Method for strengthening large coal pillar low in intensity of fracture development |
| CN106884655B (en) * | 2017-01-10 | 2019-02-22 | 山东建筑大学 | A kind of two-way reinforcement means of gob side entry driving coal column |
| CN106884655A (en) * | 2017-01-10 | 2017-06-23 | 山东建筑大学 | A kind of two-way reinforcement means of gob side entry driving coal column |
| CN106677796A (en) * | 2017-02-01 | 2017-05-17 | 连小林 | Supporting method of intersection of Y-type roadway |
| CN107060758A (en) * | 2017-04-18 | 2017-08-18 | 辽宁工程技术大学 | A kind of section fender, which is stayed, sets construction method |
| CN107313789A (en) * | 2017-08-31 | 2017-11-03 | 中国电建集团成都勘测设计研究院有限公司 | Large underground hole surrounding rock supporting structure under large ground pressure |
| CN108590723A (en) * | 2018-05-24 | 2018-09-28 | 中煤能源研究院有限责任公司 | Gob side entry driving fender erosion control release is to drawing anchoring integral structure and construction method |
| CN110424762A (en) * | 2019-07-29 | 2019-11-08 | 西安建筑科技大学 | A kind of cave dwelling hardened system |
| CN110486016A (en) * | 2019-08-16 | 2019-11-22 | 山东科技大学 | A method of improving strip coal pillar stability |
| CN111411978A (en) * | 2020-03-31 | 2020-07-14 | 昆明理工大学 | Clamping plate type supporting structure for adjacent ore removal roadways and construction process thereof |
| CN112483147A (en) * | 2020-12-25 | 2021-03-12 | 江苏宝利国际投资股份有限公司 | Opposite-penetrating double-locking anchor cable supporting system for reinforcing soft rock columns of double-hole highway tunnel |
| CN112523791A (en) * | 2020-12-25 | 2021-03-19 | 江苏宝利路面材料技术有限公司 | Annular anchor cable supporting system for reinforcing rock wall in small-clear-distance tunnel of highway |
| CN112523791B (en) * | 2020-12-25 | 2024-05-10 | 江苏宝利路面材料技术有限公司 | Annular anchor rope supporting system for reinforcing rock wall in highway small clear distance tunnel |
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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: 20160427 Termination date: 20161119 |