煤矿特大动力突水动力冲破带形成机理研究

乔 伟; 李文平; 孙如华; 李小琴; 胡 戈

煤矿特大动力突水动力冲破带形成机理研究 English Version

（ 1. 中国矿业大学资源与地球科学学院，江苏徐州 221116 ； 2. 兖矿集团有限公司博士后工作站，山东邹城 273500 ； 3. 山东省地质科学实验研究院，山东济南 250013 ）

基金项目: 国家自然科学基金项目（ 40572160 ）

详细信息

作者简介:
乔伟 (1984 – ) ，男，山东临沂人，博士（后），主要从事水文地质工程地质和岩土工程方面的研究。

中图分类号: TD74
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出版历程
- 发布日期: 2011-11-14

Formation mechanism of dynamic impact failure zone of super dynamic water inrush in coal mine

(1. School of Resources and Earth Science, China University of Mining and Technology, Xuzhou 221008, China; 2. Postdoctoral Workstation, Yankuang Group, Zoucheng 273500, China; 3. Shangdong Institute and Laboratory of Geological Sciences, Jinan 250013, China)

摘要

摘要: 由于地下开采活动，致使在整体块状结构坚硬岩层中产生弹性能积聚，当弹性能积聚到一定程度时，坚硬岩层产生动力失稳，瞬间释放巨大动能，致使在坚硬岩层附近的含水层中产生超高水压，并在含水层与采掘临空面之间，产生瞬间冲破导水通道，产生动力突水。以海孜煤矿为例，通过现场勘查和数值模拟分析了离层产生的地质条件和主要因素，测试了坚硬岩层的冲击倾向性指标（t _D，W _ET，K _E），并设计和实施了冲击动力作用下反应超静水压力大小的试验，在此基础上基于爆炸力学的理论初步研究了动力冲破带的形成机理。
- 采矿工程 /
- 离层水 /
- 动力突水 /
- 超静水压力 /
- 冲击动力
Abstract: The elastic energy accumulates in the hard rock stratum with whole blocky structure because of underground mining. The hard rock stratum will fail with the increase of the elastic energy and instantaneously release massive energy of motion, which induces high water pressure in the aquifer near the hard rock stratum. The high water pressure creates the water-conducting which is impacted instantly between the aquifer and excavation free face so as to form the dynamic water inrush. Haizi Coal Mine is taken as a case study. The geological conditions and main factors of separation layer water are analyzed based on field investigation and numerical simulation. The burst tendency indices ( Dt, W_ET and K_E ) of the hard rock stratum are tested. The excess hydrostatic pressure under the action of the impact dynamics is obtained by the relevant tests. Thus, the formation mechanism of dynamic impact failure zone is preliminarily studied based on the theory of blasting dynamic mechanics.
- mining engineering /
- separation layer water /
- dynamic water inrush /
- excess hydrostatic pressure /
- impact dynamics

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参考文献(18)

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