井上下煤层顶板区域压裂防治冲击地压系统及应用

TD324; 针对冲击地压局部卸压范围小,连续性低,作业风险高等问题,开展煤层厚硬顶板井上下千米顺层钻孔区域压裂防冲系统与工程应用研究.结果表明,从加载条件来分,顶板主导型冲击地压可分为动静载荷叠加型、高静载荷加载型、高静载荷卸荷型3种类型;厚硬顶板是采掘围岩冲击地压启动区域性静载荷、动载荷供给主体,以提供冲击启动动静载荷源的厚硬顶板为靶点,提出建立煤层顶板地面、井下千米水平孔分段致裂卸压系统,开展顶板千米顺层钻孔区域压裂.通过井上下提前破坏冲击危险区域上覆顶板的完整性,使得载荷向更完整顶板区域迁移,从而为井下掘进、回采提供低应力作业大环境,也使得冲击地压丧失启动的重要载荷条件.分别进行了工作...

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Published in煤炭科学技术 Vol. 51; no. 2; pp. 106 - 115
Main Authors 潘俊锋, 陆闯, 马小辉, 夏永学, 谢非, 徐刚, 窦桂东, 吕大钊, 孙晓冬, 马文涛
Format Journal Article
LanguageChinese
Published 煤炭资源高效开采与洁净利用国家重点实验室,北京 100013%陕西彬长矿业集团有限公司,陕西 咸阳 711300 01.02.2023
中煤科工开采研究院有限公司,北京 100013
Subjects
区域卸压
井上下压裂
顶板
冲击地压防治
区域压裂
卸压系统
Online AccessGet full text
ISSN0253-2336
DOI10.13199/j.cnki.cst.2022-0903

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Abstract TD324; 针对冲击地压局部卸压范围小,连续性低,作业风险高等问题,开展煤层厚硬顶板井上下千米顺层钻孔区域压裂防冲系统与工程应用研究.结果表明,从加载条件来分,顶板主导型冲击地压可分为动静载荷叠加型、高静载荷加载型、高静载荷卸荷型3种类型;厚硬顶板是采掘围岩冲击地压启动区域性静载荷、动载荷供给主体,以提供冲击启动动静载荷源的厚硬顶板为靶点,提出建立煤层顶板地面、井下千米水平孔分段致裂卸压系统,开展顶板千米顺层钻孔区域压裂.通过井上下提前破坏冲击危险区域上覆顶板的完整性,使得载荷向更完整顶板区域迁移,从而为井下掘进、回采提供低应力作业大环境,也使得冲击地压丧失启动的重要载荷条件.分别进行了工作面开采前地面水平井顶板区域压裂防冲技术试验,工作面开采过程中井下巷道水平孔顶板区域压裂防冲技术试验,实践效果显著,形成了冲击地压建设矿井"先压后建",生产矿井"先压后掘、先压后采"新的灾害防治模式.
AbstractList TD324; 针对冲击地压局部卸压范围小,连续性低,作业风险高等问题,开展煤层厚硬顶板井上下千米顺层钻孔区域压裂防冲系统与工程应用研究.结果表明,从加载条件来分,顶板主导型冲击地压可分为动静载荷叠加型、高静载荷加载型、高静载荷卸荷型3种类型;厚硬顶板是采掘围岩冲击地压启动区域性静载荷、动载荷供给主体,以提供冲击启动动静载荷源的厚硬顶板为靶点,提出建立煤层顶板地面、井下千米水平孔分段致裂卸压系统,开展顶板千米顺层钻孔区域压裂.通过井上下提前破坏冲击危险区域上覆顶板的完整性,使得载荷向更完整顶板区域迁移,从而为井下掘进、回采提供低应力作业大环境,也使得冲击地压丧失启动的重要载荷条件.分别进行了工作面开采前地面水平井顶板区域压裂防冲技术试验,工作面开采过程中井下巷道水平孔顶板区域压裂防冲技术试验,实践效果显著,形成了冲击地压建设矿井"先压后建",生产矿井"先压后掘、先压后采"新的灾害防治模式.
Author 马文涛
徐刚
孙晓冬
潘俊锋
夏永学
马小辉
窦桂东
陆闯
谢非
吕大钊
AuthorAffiliation 中煤科工开采研究院有限公司,北京 100013;煤炭资源高效开采与洁净利用国家重点实验室,北京 100013%陕西彬长矿业集团有限公司,陕西 咸阳 711300
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Author_FL LU Chuang
XU Gang
PAN Junfeng
MA Xiaohui
DOU Guidong
SUN Xiaodong
XIE Fei
LYU Dazhao
XIA Yongxue
MA Wentao
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Issue 2
Keywords 区域卸压
井上下压裂
顶板
冲击地压防治
区域压裂
卸压系统
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PublicationTitle 煤炭科学技术
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Publisher 煤炭资源高效开采与洁净利用国家重点实验室,北京 100013%陕西彬长矿业集团有限公司,陕西 咸阳 711300
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