CN101503959A - Gob-side entry retaining support method - Google Patents

Gob-side entry retaining support method Download PDF

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Publication number
CN101503959A
CN101503959A CNA2008101592576A CN200810159257A CN101503959A CN 101503959 A CN101503959 A CN 101503959A CN A2008101592576 A CNA2008101592576 A CN A2008101592576A CN 200810159257 A CN200810159257 A CN 200810159257A CN 101503959 A CN101503959 A CN 101503959A
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CN
China
Prior art keywords
gob
entry retaining
roadway
supporting
support
Prior art date
Application number
CNA2008101592576A
Other languages
Chinese (zh)
Inventor
张立俊
刘真伦
马士亮
王思栋
郭士启
赵曰来
张伟
贺伟
Original Assignee
枣庄矿业(集团)有限责任公司滨湖煤矿
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 枣庄矿业(集团)有限责任公司滨湖煤矿 filed Critical 枣庄矿业(集团)有限责任公司滨湖煤矿
Priority to CNA2008101592576A priority Critical patent/CN101503959A/en
Publication of CN101503959A publication Critical patent/CN101503959A/en

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Abstract

The invention relates to a gob-side roadway supporting method. The method comprises the following steps: (1) punching an anchor rod supporter along a roadway top plate of a gob-side roadway; (2) punching an anchor rope supporter on a goaf side on the top of the gob-side roadway; and (3) boring blastholes and blowing to force cutting on the goaf side of the gob-side roadway. The method has the advantages of simple process, novel design, easy mastery, safety and reliability. Compared with the drivage-side roadway, the method has larger technological and economical superiority, can make the recovery rate of an exploiting area improved by about 10 percent, can reduce the drivage rate of the roadways of the exploiting area by 25 to 30 percent, can avoid the situation that the working face is continuously tense, and can save drivage cost.

Description

Gob-side entry retaining support method
Technical field
The present invention relates to a kind of new roadway support technology in the process of coal mining.
Background technology
The gob-side entry retaining support technology is will to keep for the tunnel of the service of work plane after coal-face is adopted, for next work plane or make the roadway support technology of other usefulness; The gob-side entry retaining support technology of China does not obtain development in an all-round way as yet, and just support technology obtains desk study in the roadside support of gob side entry retaining, the lane.Roadside support refers to the supporting in addition of drift section at present; Lean on the supporting of old dead zone side in the lane in the finger shield drift section, adopt waste pack or wall (buttress), hydraulic pressure monomer and some post support technology more; These support technologies are passive protecting, go back imperfection with ripe, also do not have the theory and practice ripe gob-side entry retaining support technology that combines at present.
Summary of the invention
The supporting method that the purpose of this invention is to provide a kind of gob side entry retaining, this support process technology have reduced by ten thousand tons of drivage ratios of coal mining, have improved the mine resource recovery, have improved productivity effect.
For achieving the above object, the technical solution used in the present invention is:
Gob-side entry retaining support method, its characteristics are: may further comprise the steps: (one) beats cable bolting in old dead zone, gob side entry retaining top side; (2) drill and blast in the old dead zone of gob side entry retaining side and force to cut the top.
Above-mentioned gob-side entry retaining support technology, its characteristics are: before cutting the top, play resin anchor close plating net at gob side entry retaining back and sidewall and add the supporting of anchor steel band.
Above-mentioned gob-side entry retaining support method, its characteristics are: drill and blast in the old dead zone of gob side entry retaining side and force to cut the caving plate, make the roof inbreak in the old dead zone, reduce the roof pressure that stays the lane.
The present invention has following advantage than supporting in the roadside support of gob side entry retaining, the lane: technology is simple, and modern design is in grasp, safe and reliable; Have an enormous advantage than tool technically and economically with gob side entry driving, can make working section recovery improve about 10%, can make the drivage ratio of mining roadway reduce by 25~30%, avoided work plane continue nervous situation, and can save the driving expense.
Below in conjunction with specific embodiment the present invention is further described.
Description of drawings
Fig. 1 is the schematic diagram of supporting completion morphology of the present invention.
The specific embodiment
Embodiment 1
Gob-side entry retaining support method of the present invention, as shown in Figure 1, the gob side entry retaining width should not be too wide, and width 3.0-4.2 rice is advisable; At first hang steel mesh reinforcements 3 and add anchor steel band (anchor steel ladder) supporting staying lane back and sidewall to beat resin anchor 2, resin anchor is with ¢ 18, long 2.0 meters, 1.0 meters of array pitch; Hang ¢ 6.5 steel mesh reinforcements, 1.2 meters of 1.0 meters * of specification; Grid 100mm*100mm; Increase strength of roof; Second step was played anchor cable 1 supporting, anchor cable 1 long 3.0-6.0 rice, 1.5 meters of array pitch at the gob side entry retaining top board apart from old dead zone side 0.3-0.5 rice; The 3rd step drilled and blasted in old dead zone, gob side entry retaining outer side and forces to cut caving, cut 0.25 meter one of top eye every one of a blast firing of powder charge.Stay lanewidth degree, anchor cable, rock-bolt length, an array pitch, a width of blowing out should design adjustment according to the rock property of coal seam roof and floor.
Adopt the gob-side entry retaining support method in the foregoing description to have following advantage:
(1) can realize to top board effectively cut caving, gob side entry retaining inside ceiling panel pressure is reduced greatly, guarantee the space width of gob side entry retaining simultaneously, realized that safety stays the lane, stay the lane effect better.
(2) technology is simple, in grasp, anchor cable, anchor guipure protect the top, force to blow out to cut the supporting method that the lane is stayed in the top supporting, can when digging laneway, implement anchor cable, the anchor guipure protects the top, this technological operation is simple, disposable one-tenth lane, it is convenient to use, promptly strengthened staying the lane top board, stayed a gang of supporting intensity in lane, the joint operation that the multiplex (MUX) plants during having avoided again mining, thus the safety guarantee degree has also had raising; Simpler than the loaded down with trivial details technological process of supporting in roadside support, the lane, reduced personnel's input, improved personnel, the utilization in man-hour.
(3) with stay coal column to protect lane driving to compare, gob side entry retaining technically and economically all tool have an enormous advantage, can make working section recovery improve about 10%, can make the drivage ratio of mining roadway reduce by 25~30%, avoided work plane continue nervous situation, and can save the driving expense, economic benefit and social benefit are very remarkable.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; under the prerequisite that does not break away from design concept of the present invention; common engineers and technicians make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.

Claims (3)

1, a kind of gob-side entry retaining support method is characterized in that: this method may further comprise the steps:
(1) plays anchor cable (1) supporting in old dead zone, gob side entry retaining top side;
(2) drill and blast in the old dead zone of gob side entry retaining side and force to cut the caving plate.
2, gob-side entry retaining support method according to claim 1 is characterized in that: before cutting the top, play anchor cable (1) supporting at the gob side entry retaining back.
3, gob-side entry retaining support method according to claim 2 is characterized in that: play resin anchor (2) close plating net (3) at gob side entry retaining back and sidewall and add the supporting of anchor steel band.
CNA2008101592576A 2008-11-26 2008-11-26 Gob-side entry retaining support method CN101503959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101592576A CN101503959A (en) 2008-11-26 2008-11-26 Gob-side entry retaining support method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008101592576A CN101503959A (en) 2008-11-26 2008-11-26 Gob-side entry retaining support method

Publications (1)

Publication Number Publication Date
CN101503959A true CN101503959A (en) 2009-08-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008101592576A CN101503959A (en) 2008-11-26 2008-11-26 Gob-side entry retaining support method

Country Status (1)

Country Link
CN (1) CN101503959A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725368B (en) * 2009-11-28 2011-08-17 山东科技大学 Thick seam large mining height working face gob-side entry retaining method
CN102337904A (en) * 2011-09-09 2012-02-01 贾民 Method for retaining gob-side tunnel
CN102720498A (en) * 2012-06-20 2012-10-10 鄂托克前旗长城煤矿有限责任公司 Gob-side entry retaining mining process for coal face
CN101775991B (en) * 2010-01-11 2012-10-31 大连大学 Method for significant reduction of bracket support of gob-side roadway of fully-mechanized mining face
CN102900449A (en) * 2012-10-11 2013-01-30 北京圆之翰煤炭工程设计有限公司 Support method for underground goaf roof of coal mine
CN103016033A (en) * 2012-12-31 2013-04-03 枣庄矿业集团新安煤业有限公司 Working face crossheading belt plate supporting device
CN103133025A (en) * 2013-02-22 2013-06-05 山东科技大学 Gob-side retaining entry beforehand wall-caving roof-reinforcing method
CN103758529A (en) * 2013-12-28 2014-04-30 北京昊华能源股份有限公司 Coal mine gob-side entry retaining side supporting method
CN104061001A (en) * 2014-06-25 2014-09-24 枣庄矿业(集团)有限责任公司滨湖煤矿 Gob-side entry retaining mining support process method
CN104358572A (en) * 2014-09-11 2015-02-18 四川达竹煤电(集团)有限责任公司铁山南煤矿 Non-pillar mining technology by spontaneous caving filling roadway at large inclined angle steeply inclined seam
CN106121537A (en) * 2016-07-22 2016-11-16 山东科技大学 The Qie Dingcheng of gob side entry retaining without coal column lane construction method
CN106437799A (en) * 2016-10-25 2017-02-22 中国矿业大学 The method for working face end goaf carving
CN107503778A (en) * 2017-09-12 2017-12-22 新汶矿业集团有限责任公司 The method that gob side entry retaining is realized using grouting cable anchor

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725368B (en) * 2009-11-28 2011-08-17 山东科技大学 Thick seam large mining height working face gob-side entry retaining method
CN101775991B (en) * 2010-01-11 2012-10-31 大连大学 Method for significant reduction of bracket support of gob-side roadway of fully-mechanized mining face
CN102337904A (en) * 2011-09-09 2012-02-01 贾民 Method for retaining gob-side tunnel
CN102337904B (en) * 2011-09-09 2013-12-18 贾民 Method for retaining gob-side tunnel
CN102720498B (en) * 2012-06-20 2015-06-17 鄂托克前旗长城煤矿有限责任公司 Gob-side entry retaining mining process for coal face
CN102720498A (en) * 2012-06-20 2012-10-10 鄂托克前旗长城煤矿有限责任公司 Gob-side entry retaining mining process for coal face
CN102900449A (en) * 2012-10-11 2013-01-30 北京圆之翰煤炭工程设计有限公司 Support method for underground goaf roof of coal mine
CN102900449B (en) * 2012-10-11 2014-07-23 北京圆之翰煤炭工程设计有限公司 Support method for underground goaf roof of coal mine
CN103016033A (en) * 2012-12-31 2013-04-03 枣庄矿业集团新安煤业有限公司 Working face crossheading belt plate supporting device
CN103133025A (en) * 2013-02-22 2013-06-05 山东科技大学 Gob-side retaining entry beforehand wall-caving roof-reinforcing method
CN103758529A (en) * 2013-12-28 2014-04-30 北京昊华能源股份有限公司 Coal mine gob-side entry retaining side supporting method
CN104061001A (en) * 2014-06-25 2014-09-24 枣庄矿业(集团)有限责任公司滨湖煤矿 Gob-side entry retaining mining support process method
CN104061001B (en) * 2014-06-25 2016-09-07 枣庄矿业(集团)有限责任公司滨湖煤矿 Gob side entry retaining exploitation support process method
CN104358572A (en) * 2014-09-11 2015-02-18 四川达竹煤电(集团)有限责任公司铁山南煤矿 Non-pillar mining technology by spontaneous caving filling roadway at large inclined angle steeply inclined seam
CN106121537A (en) * 2016-07-22 2016-11-16 山东科技大学 The Qie Dingcheng of gob side entry retaining without coal column lane construction method
CN106437799A (en) * 2016-10-25 2017-02-22 中国矿业大学 The method for working face end goaf carving
CN107503778A (en) * 2017-09-12 2017-12-22 新汶矿业集团有限责任公司 The method that gob side entry retaining is realized using grouting cable anchor

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