CN111042821A - 一种定量判断特厚煤层沿空巷道开掘时间的双指标方法 - Google Patents
一种定量判断特厚煤层沿空巷道开掘时间的双指标方法 Download PDFInfo
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- CN111042821A CN111042821A CN201911097866.8A CN201911097866A CN111042821A CN 111042821 A CN111042821 A CN 111042821A CN 201911097866 A CN201911097866 A CN 201911097866A CN 111042821 A CN111042821 A CN 111042821A
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- coal
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- roadway
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
条件 | a | b |
P>1145,σ>10 | 0.8 | 0.2 |
1075<P≤1145,5<σ≤10 | 0.7 | 0.3 |
975<P≤1145,3<σ≤5 | 0.5 | 0.5 |
895<P≤975,1<σ≤3 | 0.4 | 0.6 |
P≤875,σ≤1 | 0.3 | 0.7 |
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CN201911097866.8A CN111042821B (zh) | 2019-11-12 | 2019-11-12 | 一种定量判断特厚煤层沿空巷道开掘时间的双指标方法 |
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CN201911097866.8A CN111042821B (zh) | 2019-11-12 | 2019-11-12 | 一种定量判断特厚煤层沿空巷道开掘时间的双指标方法 |
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CN111042821A true CN111042821A (zh) | 2020-04-21 |
CN111042821B CN111042821B (zh) | 2021-03-30 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113153418A (zh) * | 2021-04-08 | 2021-07-23 | 中国矿业大学 | 一种基于综合指数法的三维空间充填效果评价方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011103620A1 (en) * | 2010-02-26 | 2011-09-01 | Subsidence Control International Pty Ltd | A method of reducing subsidence or windblast impacts from longwall mining |
CN103470261A (zh) * | 2013-09-30 | 2013-12-25 | 山东科技大学 | 综采放顶煤采空区原巷道顶板下沿空掘巷的方法 |
CN106884655A (zh) * | 2017-01-10 | 2017-06-23 | 山东建筑大学 | 一种沿空掘巷煤柱双向加固方法 |
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2019
- 2019-11-12 CN CN201911097866.8A patent/CN111042821B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011103620A1 (en) * | 2010-02-26 | 2011-09-01 | Subsidence Control International Pty Ltd | A method of reducing subsidence or windblast impacts from longwall mining |
CN103470261A (zh) * | 2013-09-30 | 2013-12-25 | 山东科技大学 | 综采放顶煤采空区原巷道顶板下沿空掘巷的方法 |
CN106884655A (zh) * | 2017-01-10 | 2017-06-23 | 山东建筑大学 | 一种沿空掘巷煤柱双向加固方法 |
Non-Patent Citations (1)
Title |
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任侃: "深井综放工作面沿空掘巷时空关系分析", 《山西焦煤科技》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113153418A (zh) * | 2021-04-08 | 2021-07-23 | 中国矿业大学 | 一种基于综合指数法的三维空间充填效果评价方法 |
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Inventor after: Zhang Guangchao Inventor after: Tao Guangzhe Inventor after: Wen Zhijie Inventor after: Jiang Bangyou Inventor after: Li You Inventor after: Zhao Deshuai Inventor after: Sun Jiang Inventor after: Zhang Fuqiang Inventor before: Zhang Guangchao Inventor before: Wen Zhijie Inventor before: Jiang Bangyou Inventor before: Tao Guangzhe Inventor before: Li You Inventor before: Zhao Deshuai Inventor before: Sun Jiang Inventor before: Zhang Fuqiang |