CN205370610U - Reinforcing apparatus of narrow coal column between tunnel - Google Patents
Reinforcing apparatus of narrow coal column between tunnel Download PDFInfo
- Publication number
- CN205370610U CN205370610U CN201620120077.7U CN201620120077U CN205370610U CN 205370610 U CN205370610 U CN 205370610U CN 201620120077 U CN201620120077 U CN 201620120077U CN 205370610 U CN205370610 U CN 205370610U
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- China
- Prior art keywords
- anchor
- coal pillar
- thin coal
- coal column
- anchor cable
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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
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Abstract
The utility model discloses a reinforcing apparatus of narrow coal column between tunnel, narrow coal column top is equipped with the roof, and the below is equipped with the bottom plate, reinforcing apparatus includes the anchor rope and protects table component board, the anchor eye has been seted up on the narrow coal column, protecting table member board and setting up in narrow coal column both sides, the anchor rope runs through the anchor eye setting, and anchor rope both ends salient is in protecting table member board, and the anchor rope both ends add is equipped with the cydariform tray, and it is fixed that the cydariform tray passes through the rigging. The utility model discloses simple structure, simple to operate, quick struts reliable, save material, improvement resource extraction rate. Reinforcing apparatus of narrow coal column between tunnel can guarantee that the coal column is kept perfectly, does not take place to warp the phenomenon of collapsing under great roof pressure and strong exploitation disturbance.
Description
Technical field
This utility model relates to a kind of Roadway Support Technology field, and specific design one is applied between tunnel to stay thin coal pillar fast reinforcing.
Background technology
Along with coal mining intensity increases, progressively being developed to deep by superficial part, deep mining is characterized by that crustal stress is high, structure complexity, and Surrounding Rock Strength is low, and the requirement that Drift stability is controlled is more and more higher.Gob side entry retaining, gob side entry driving, upper and lower intermountain are generally stayed and are set 5m-10m coal column protection tunnel; but because mine pressure is big; strong exploitation disturbance; the factors such as coal and rock self-strength is low affect; coal column often deforms-unstability-destruction; cause difficulty to Safety of Coal Mine Production, stay wide coal column to cause the substantial amounts of wasting of resources simultaneously.For improving recovery ratio, stay thin coal pillar, protect table component protection coal pillar by anchor cable net and w steel band, but still the features such as the string bag, anchor pole failure damage, coal column generation large deformation destruction occurs in lane side, has a strong impact on mine safety production.
Utility model content
For the weak point that prior art is above-mentioned, this utility model patent provides the bracing means of thin coal pillar between a kind of tunnel, can effectively solve thin coal pillar deformation failure problem.
This utility model adopts the following technical scheme that
The bracing means of thin coal pillar between a kind of tunnel, described thin coal pillar is arranged over top board, it is connected with base plate, described bracing means includes anchor cable and protect table panels, and described thin coal pillar offers anchor hole, described in protect table panels and be arranged at thin coal pillar both sides, anchor cable runs through anchor hole and arranges, and anchor cable two ends protrude from and protect table panels, anchor cable two ends add cydariform pallet, and cydariform pallet is fixed by rigging.
Preferably, the anchor hole diameter on described thin coal pillar is 15-40mm, and described anchor cable diameter is 10-30mm, and anchor cable diameter is adaptive with anchor hole.
Preferably, the steel plate of the comprcssive strength that table panels is thickness 10～30mm, wide 2～4m, high 2～5m is protected described in.
Preferably, described anchor hole has five, is distributed in two, coal column top, one, middle part, two, bottom；
Described steel plate is provided with hole, 5 corresponding with anchor hole.
Preferably, it is filled with grouting layer between described anchor cable and anchor hole.
Preferably, described grouting layer is grout layer or chemical consolidation material layer.
The Advantageous Effects that as above technical scheme obtains is adopted to be:
This utility model simple in construction, easy for installation, quick, supporting is reliable, save material, improve resource recovery ratio；Between tunnel, the bracing means of thin coal pillar can guarantee that coal column keeps completely under bigger roof pressure and strong exploitation disturbance, and do not deform phenomenon of caving in.
Accompanying drawing explanation
Fig. 1 is that thin coal pillar of the present utility model reinforces side view.
Fig. 2 is that thin coal pillar of the present utility model reinforces Cross-section Design figure.
In figure: 1-top board；2-base plate；3-thin coal pillar；4-anchor cable；5-protects table panels；6-cydariform pallet；7-rigging；8-grouting layer；9-anchor hole.
Detailed description of the invention
For making the technical solution of the utility model clearly, clearly, it is described further in conjunction with 1 to 2 pair, accompanying drawing detailed description of the invention of the present utility model:
The bracing means of thin coal pillar between a kind of tunnel, described thin coal pillar 3 is arranged over top board 1, it is connected with base plate 2, described bracing means includes anchor cable 4 and protects table panels 5, and described thin coal pillar offers anchor hole 9, described in protect table panels and be arranged at thin coal pillar both sides, anchor cable 4 runs through anchor hole and arranges, and anchor cable two ends protrude from and protect table panels, anchor cable two ends add cydariform pallet 6, and cydariform pallet 6 is fixed by rigging 7.Cydariform pallet has yielding automatically effect, and protection table steel plate local pressure is too high causes failure of cable, and because coal helps surface irregularity, usual steel plate back needs the filling back of the body real, this allows pressure device, it is to avoid the tedious work such as steel plate back filling
Anchor hole diameter on thin coal pillar is 15-40mm, and described anchor cable diameter is 10-30mm, and anchor cable diameter is adaptive with anchor hole.
Protect the steel plate of the comprcssive strength that table panels is thickness 10～30mm, wide 2～4m, high 2～5m.The face guard size required for size choosing according to coal column.Protecting table panels is rectangular shape, every piece of firm plate area 4-20m2, and this large-area steel plate is as protecting table component, it is possible to accelerate speed of application.
Anchor hole has five, be distributed in two, coal column top, one, middle part, two, bottom in birdeye arrange, steel plate is provided with hole, 5 corresponding with anchor hole.This hole arrangement can make firm plate have stiff stability, and phase comparison eye is arranged, this mode reduces anchor hole operation, saves the support materials such as anchor cable.
Grouting layer 8 it is filled with between anchor cable and anchor hole.Grouting layer is grout layer or chemical consolidation material layer.
The purpose of this utility model is to be in that to reinforce fast and effectively thin coal pillar, when concrete field-hardened is constructed, boring anchor hole on thin coal pillar, bore dia 15-40mm (determined by anchor cable specification by anchor hole diameter, generally require that anchor hole diameter is more than anchor cable 10-30mm), and penetrate thin coal pillar；Wearing anchor cable in hole, anchor cable diameter selects 15-30mm (lateral restriction applied as required determines anchor cable specification)；Cement injection in hole, makes broken coalmass crevasse healing；Table component steel plate, steel plate thickness 10-30mm, wide 2-4m, high 2-5m (selecting required plate size according to the size of coal column) are protected in installation；Drum shape is installed and allows pressure pallet, then rigging is installed, it is desirable to improve the pretightning force at anchor cable both ends, make steel plate that coal column both sides to provide bigger lateral restriction, it is ensured that coal column is stable.
In this utility model, it is flexibly that anchor hole is arranged, if it is excessive by side force to protect table component somewhere, in order to prevent, local pressure is excessive causes anchor cable damage inactivation, can this stress higher near increase anchor hole, and anchor cable is installed, strengthens and protect table dynamics.
Certainly; described above it is only preferred embodiment of the present utility model; this utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the guidance of this specification; made all equivalent replacement, obvious variant, all fall within the essential scope of this specification, ought to be subject to protection of the present utility model.
Claims (6)
1. the bracing means of thin coal pillar between a tunnel, described thin coal pillar is arranged over top board, it is connected with base plate, it is characterised in that described bracing means includes anchor cable and protects table panels, described thin coal pillar offers anchor hole, the described table panels that protects is arranged at thin coal pillar both sides, and anchor cable runs through anchor hole and arranges, and anchor cable two ends protrude from and protect table panels, anchor cable two ends add cydariform pallet, and cydariform pallet is fixed by rigging.
2. the bracing means of thin coal pillar between a kind of tunnel according to claim 1, it is characterised in that the anchor hole diameter on described thin coal pillar is 15-40mm, and described anchor cable diameter is 10-30mm, anchor cable diameter is adaptive with anchor hole.
3. the bracing means of thin coal pillar between a kind of tunnel according to claim 1, it is characterised in that described in protect the steel plate of the comprcssive strength that table panels is thickness 10～30mm, wide 2～4m, high 2～5m.
4. the bracing means of thin coal pillar between a kind of tunnel according to claim 3, it is characterised in that described anchor hole has five, is distributed in two, coal column top, one, middle part, two, bottom；
Described steel plate is provided with hole, 5 corresponding with anchor hole.
5. the bracing means of thin coal pillar between a kind of tunnel according to claim 1, it is characterised in that be filled with grouting layer between described anchor cable and anchor hole.
6. the bracing means of thin coal pillar between a kind of tunnel according to claim 5, it is characterised in that described grouting layer is grout layer or chemical consolidation material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620120077.7U CN205370610U (en) | 2016-02-15 | 2016-02-15 | Reinforcing apparatus of narrow coal column between tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620120077.7U CN205370610U (en) | 2016-02-15 | 2016-02-15 | Reinforcing apparatus of narrow coal column between tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370610U true CN205370610U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620120077.7U Expired - Fee Related CN205370610U (en) | 2016-02-15 | 2016-02-15 | Reinforcing apparatus of narrow coal column between tunnel |
Country Status (1)
| Country | Link |
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| CN (1) | CN205370610U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971640A (en) * | 2016-07-08 | 2016-09-28 | 西安科技大学 | Strengthening method for gob-side entrydriving narrow coal pillar |
| 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 |
| CN107060811A (en) * | 2017-06-20 | 2017-08-18 | 嘉兴学院 | The bracing means of thin coal pillar between a kind of tunnel |
| 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 |
| CN110410100A (en) * | 2019-07-13 | 2019-11-05 | 新疆大学 | The method that prestressed fiber cloth reinforced Room and Pillar Working Face leaves coal column |
| CN112963186A (en) * | 2021-03-17 | 2021-06-15 | 辽宁工程技术大学 | Gob-side entry driving narrow coal pillar reinforcing and supporting method |
-
2016
- 2016-02-15 CN CN201620120077.7U patent/CN205370610U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971640A (en) * | 2016-07-08 | 2016-09-28 | 西安科技大学 | Strengthening method for gob-side entrydriving narrow coal pillar |
| CN105971640B (en) * | 2016-07-08 | 2018-08-03 | 西安科技大学 | A kind of reinforcement means of gob side entry driving thin coal pillar |
| 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 |
| CN107060811A (en) * | 2017-06-20 | 2017-08-18 | 嘉兴学院 | The bracing means of thin coal pillar between a kind of tunnel |
| 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 |
| CN110410100A (en) * | 2019-07-13 | 2019-11-05 | 新疆大学 | The method that prestressed fiber cloth reinforced Room and Pillar Working Face leaves coal column |
| CN112963186A (en) * | 2021-03-17 | 2021-06-15 | 辽宁工程技术大学 | Gob-side entry driving narrow coal pillar reinforcing and supporting method |
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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: 20160706 Termination date: 20170215 |