CN202215249U - Layering pack wall along for hollow entry retaining in solid filling coal mining - Google Patents
Layering pack wall along for hollow entry retaining in solid filling coal mining Download PDFInfo
- Publication number
- CN202215249U CN202215249U CN2011202492657U CN201120249265U CN202215249U CN 202215249 U CN202215249 U CN 202215249U CN 2011202492657 U CN2011202492657 U CN 2011202492657U CN 201120249265 U CN201120249265 U CN 201120249265U CN 202215249 U CN202215249 U CN 202215249U
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- pack wall
- coal mining
- entry retaining
- filling coal
- wall
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Abstract
The utility model relates to a layering pack wall for hollow entry retaining in solid filling coal mining. The pack wall is layered on one side of a goaf filling body on a filling coal mining face, the pack wall is formed by filling coal mine waste rocks in woven bags or polypropylene woven bags to layer a wall body, the coal mine waste rocks can directly adopt filling waste rocks of the filling coal mining face, then the layered pack wall needs to adopt single-layer metal nets, W-shaped steel belts, ladder-shaped beams and double-head anchor rod with threads for pre-tightening support protection. With the working face advancing, a complete pack wall body can be retained in the method for mining of the next working face. The entry retaining method is simple, practical, high in support protection strength and low in construction cost.
Description
Technical field
The utility model relates to a kind of solid filling coal mining gob side entry retaining and assembles pack wall, and being particularly useful for the filling coal mining work plane does not have the coal column gob side entry retaining.
Background technology
Along with the solid filling coal-mining technique develops gradually, liberated " three times " and pressed coal, improve mine resource recovery ratio, realized the needs of mining area resource and environment harmonic extraction.But the protection pillar about in the filling coal mining between section two stopes stays and establishes width is 20～30m, has caused the loss of a large amount of coal resources, has become the bottleneck that improves the coal resources rate of extraction in the filling coal mining technology.Existing gob-side entry retaining method and related patent U.S. Patent No. technology great majority are on the basis of conventional coal mining activity, to adopt the roadside packing technology to carry out; Construction technology is complicated; Need expend more manpower and materials, and this kind mode can to cause inter process to influence each other very serious, inefficiency.
To above problem, a kind of solid filling coal mining of the present invention gob side entry retaining assembles pack wall, has improved the rate of extraction of coal resources greatly; Can prepare stope drift active workings for next work plane again for this work plane increases an escape way, can save the tunnelling expense; Can alleviate the coal mine excavation imbalance and the nervous situation that continues again; The condition that provides " Y " type to ventilate for high Gassy Coal Face again simultaneously, and on the basis of goaf filling, stay the lane difficulty low, method is simple; Easy and simple to handle, have important practical significance and wide application prospect.
Summary of the invention
Technical problem: it is simple that the purpose of the utility model provides a kind of method, and easy construction is safe and reliable, and the solid filling coal mining gob side entry retaining that has than strong support force assembles pack wall.
Technical scheme: the solid filling coal mining gob side entry retaining of the utility model assembles pack wall, is to assemble pack wall in filling coal mining face goaf obturation one side, and the width that assembles pack wall is 1.5m～3m, and it is identical with the work plane mining height to assemble the pack wall height; Pack wall is to use pouch coal mine waste rock to be filled and assembled to be body of wall, and the spoil pouch of employing is common woven bag or snakeskin bag, and coal mine waste rock directly adopts the filing gangue in mined-out area of even proportioning, and particle diameter is less than 50mm; Then single-layer metal net, " W " steel band of model, ladder beam and the supporting of the threaded anchor pole pretension of double end are adopted in the pack wall both sides, array pitch is 600mm * 800mm between anchor pole, and " W " steel band of model and ladder beam are right-angled intersection and arrange.
Beneficial effect: the utility model has solved " three times " and has pressed coal to reach the loss of coal pillar between section two stopes up and down, has improved the rate of extraction of coal resources greatly, can increase an escape way for this work plane; Can prepare stope drift active workings for next work plane again, can save the tunnelling expense, can alleviate the coal mine excavation imbalance and the pressure that continues again; The condition that provides " Y " type to ventilate for high Gassy Coal Face again simultaneously; And on the basis of goaf filling, stay the lane difficulty low, its method method is simple, practical, and supporting intensity is high; Cost is low, has practicality widely.
Description of drawings
Fig. 1 is that the work plane of the utility model is arranged sketch map;
Fig. 2 is the schematic side view that the A-A structure of Fig. 1 assembles the supporting of spoil body of wall;
Fig. 3 is the B-B structure gob side entry retaining sketch map of Fig. 1.
Among the figure: 1-goaf filling body, 2-pack wall, 3-pouch, 4-wire lath, 5-" W " steel band of model, 6-ladder beam, 7-anchor pole.
The specific embodiment
Shown in Figure 1 is the work plane layout sketch map of the utility model; Along with work plane is pushed ahead, form the goaf, filling is carried out with spoil in the goaf; Form goaf filling body 1; And then goaf filling body 1 one sides assemble pack wall 2, and the width that assembles pack wall 2 is 1.5m～3m, and it is identical with the work plane mining height to assemble pack wall 2 height; Pack wall 2 is to use pouch 3 coal mine waste rock to be filled and assembled to be body of wall, and the spoil pouch 3 of employing is common woven bag or snakeskin bag, and coal mine waste rock directly adopts the filing gangue in mined-out area of even proportioning, and the spoil particle diameter is less than 50mm; The support pattern of pack wall 2 is as shown in Figure 2; Single-layer metal net 4, " W " steel band of model 5, ladder beam 6 and the threaded anchor pole 7 pretension supportings of double end are adopted in pack wall 2 both sides; Array pitch is 600mm * 800mm between anchor pole; Wherein " W " steel band of model 5 is " ten " word arranged crosswise with ladder beam 6, and the final the utility model gob side entry retaining lateral view that forms is as shown in Figure 3.
Claims (7)
1. a solid filling coal mining gob side entry retaining assembles pack wall, it is characterized in that assembling pack wall (2) in filling coal mining face goaf obturation (1) one side, and said pack wall is coal mine waste rock to be filled and assembled with pouch (3) to be body of wall.
2. a kind of solid filling coal mining gob side entry retaining according to claim 1 assembles pack wall, it is characterized in that the said width that assembles pack wall is 1.5m～3m, and it is identical with the work plane mining height to assemble the pack wall height.
3. a kind of solid filling coal mining gob side entry retaining according to claim 1 assembles pack wall, it is characterized in that said pack wall both sides employing single-layer metal net (4), " W " steel band of model (5), ladder beam (6) and the threaded anchor pole of double end (7) pretension supporting.
4. a kind of solid filling coal mining gob side entry retaining according to claim 3 assembles pack wall, it is characterized in that array pitch is 600mm * 800mm between anchor pole.
5. a kind of solid filling coal mining gob side entry retaining according to claim 3 assembles pack wall, it is characterized in that " W " steel band of model and ladder beam are right-angled intersection and arrange.
6. a kind of solid filling coal mining gob side entry retaining according to claim 1 assembles pack wall, it is characterized in that described spoil pouch is common woven bag or snakeskin bag.
7. a kind of solid filling coal mining gob side entry retaining according to claim 1 assembles pack wall, it is characterized in that said coal mine waste rock directly adopts the filing gangue in mined-out area of even proportioning, and particle diameter is less than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202492657U CN202215249U (en) | 2011-07-05 | 2011-07-05 | Layering pack wall along for hollow entry retaining in solid filling coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202492657U CN202215249U (en) | 2011-07-05 | 2011-07-05 | Layering pack wall along for hollow entry retaining in solid filling coal mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215249U true CN202215249U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202492657U Expired - Fee Related CN202215249U (en) | 2011-07-05 | 2011-07-05 | Layering pack wall along for hollow entry retaining in solid filling coal mining |
Country Status (1)
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| CN (1) | CN202215249U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943674A (en) * | 2012-11-14 | 2013-02-27 | 山东科技大学 | Gangue bag filling method in thin coal seam wide roadway tunneling under tight roof |
| CN103334785A (en) * | 2013-07-17 | 2013-10-02 | 安徽理工大学 | Gob-side entry retaining flexible infilled wall body structure and filling method thereof |
| WO2014090108A1 (en) * | 2012-12-10 | 2014-06-19 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavated tunnels for advancing |
| CN104295315A (en) * | 2014-08-15 | 2015-01-21 | 黑龙江科技大学 | Low coal seam gob-side entry retaining method |
| CN105952452A (en) * | 2016-04-22 | 2016-09-21 | 中国矿业大学 | Oil bag type solid filling coal mining three-dimensional physical similarity simulation experiment device and method |
| CN108590655A (en) * | 2018-03-27 | 2018-09-28 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN109538251A (en) * | 2018-11-29 | 2019-03-29 | 山东科技大学 | A kind of husky combined bearing structure of net and gob-side entry retaining support method |
| CN112112672A (en) * | 2020-09-22 | 2020-12-22 | 中国矿业大学 | Gob-side entry retaining roadside support body construction method based on gangue cement-based material |
-
2011
- 2011-07-05 CN CN2011202492657U patent/CN202215249U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943674A (en) * | 2012-11-14 | 2013-02-27 | 山东科技大学 | Gangue bag filling method in thin coal seam wide roadway tunneling under tight roof |
| CN102943674B (en) * | 2012-11-14 | 2015-09-16 | 山东科技大学 | Thin coal seam wide roadway digging gangue bag placement method under a kind of tight roof |
| WO2014090108A1 (en) * | 2012-12-10 | 2014-06-19 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavated tunnels for advancing |
| CN103334785A (en) * | 2013-07-17 | 2013-10-02 | 安徽理工大学 | Gob-side entry retaining flexible infilled wall body structure and filling method thereof |
| CN104295315A (en) * | 2014-08-15 | 2015-01-21 | 黑龙江科技大学 | Low coal seam gob-side entry retaining method |
| CN105952452A (en) * | 2016-04-22 | 2016-09-21 | 中国矿业大学 | Oil bag type solid filling coal mining three-dimensional physical similarity simulation experiment device and method |
| CN108590655A (en) * | 2018-03-27 | 2018-09-28 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN108590655B (en) * | 2018-03-27 | 2019-05-31 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN109538251A (en) * | 2018-11-29 | 2019-03-29 | 山东科技大学 | A kind of husky combined bearing structure of net and gob-side entry retaining support method |
| CN112112672A (en) * | 2020-09-22 | 2020-12-22 | 中国矿业大学 | Gob-side entry retaining roadside support body construction method based on gangue cement-based material |
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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 |
Granted publication date: 20120509 Termination date: 20160705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |