| 孙疃煤矿102采区防水煤岩柱留设技术研究 |
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| 引用本文： | 王大设,王俊,姚多喜.孙疃煤矿102采区防水煤岩柱留设技术研究[J].中国煤炭地质,2011(3):34-38. |
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| 作者姓名： | 王大设 王俊 姚多喜 |
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| 作者单位： | [1]淮北矿业集团地测处,安徽淮北235000 [2]安徽理工大学地球与环境学院,安徽淮南232001 |
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| 摘 要： | 依据准北孙疃煤矿102采区资料,通过分析研究矿区第四系、基岩风化带及10煤层顶板水文地质及工程地质条件,利用规程计算、FLAC3D数值模计算以及临近许疃、桃园两矿的实测资料,最终得出采区的冒落带高度为14m,裂隙带高度为45.6m,从而确定该采区的防水煤岩柱为30m,并对其可靠性进行分析论证。该项研究可以使采区10煤层防水煤柱的留设从90m降低到30m,解放煤炭资源量42万t,产生直接经济效益10500万元。
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| 关 键 词： | 水文地质及工程地质条件 煤（岩）柱留设 计算 回采上限 孙疃煤矿 |
Study on Reasonable Water Barrier Leaving Key Technologies in No.102 Winning District,Suntuan Coalmine |
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| Wang Dashe,Wang Jun and Yao Duoxi.Study on Reasonable Water Barrier Leaving Key Technologies in No.102 Winning District,Suntuan Coalmine[J].Coal Geology of China,2011(3):34-38. |
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| Authors: | Wang Dashe Wang Jun and Yao Duoxi |
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| Institution: | 1.Geological and Surveying Division,Huaibei Mining Industrial Group,Huaibei,Anhui 235000;2.College of Earth and Environment Sciences,Anhui University of Science and Technology,Huainan,Anhui 232001) |
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| Abstract: | Based on information from No.102 winning district,Suntuan coalmine,Huaibei,analyzed mine area Quaternary,bedrock weathered zone and No.10 coal seam roof hydrogeological and engineering geological conditions in the mine area.Using computed results in accordance with exploration specifications stated and FLAC3D numerical simulation,as well as observed data from neighboring Xutuan and Taoyuan coalmines,finally estimated winning district caving zone height is 14m,fracture zone height 45.6m,accordingly 30m of water barrier determined and its reliability justified.The study reduces No.10 coal seam water barrier leaving from 90m to 30m,thus 0.42 million tons of coal resource will be set free and direct economic benefit of $105 million RMB gained. |
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| Keywords: | hydrogeological and engineering geological conditions coal（rock） pillar leaving computation upper limit of winning Suntuan coalmine |
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