| The mechanism and criterion of tectonic zone around karstic collapse column reactivation-induced water-conducting |
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| 作者姓名： | 许进鹏 付志亮 宋扬 程久龙 |
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| 作者单位： | College of Resources and Environmental engineering, Shandong University of Science and Technology, Tai＇an 271017, China |
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| 摘 要： | Introduction In north China coalfields, there are many Karstic Collapse columns(the following abbreviate is KCC). The KCC destroys the normal coal seam, influences proper layout of mining districts, and what’s more, there are a small number of KCC possesses water permeability, when the KCC is exposed, the water in-vasion would occur. Some mines have happened this accident and the mines were submerged, such as An-yang Tongye Mine (1965), Kailuan Fangezhuang Mine(1983), Anhui Renlou M…
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| 关 键 词： | 喀斯特坍塌柱 再生准则 裂纹扩展 构造分区 矿井水 |
The mechanism and criterion of tectonic zone around karstic collapse column reactivation-induced water-conducting |
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| XU Jin-peng , FU Zhi-liang , SONG Yang , CHENG Jiu-long.The mechanism and criterion of tectonic zone around karstic collapse column reactivation-induced water-conducting[J].Journal of Coal Science & Engineering(China),2005,11(2):41-43. |
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| Authors: | XU Jin-peng FU Zhi-liang SONG Yang CHENG Jiu-long |
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| Abstract: | In order to study the mechanism of tectonic zone around karstic collapse column reacts to leak water and prevent water invasion in mine. According to the character of the surrounding cracks- penetrated water KCC, The fracture mechanics theory can be used to study the propagation and perforation process of cracks and hitches around the KCC. The criterion of crack start rupture and the length of secondary crack and criterion of crack propagation have been attained. The influencing factors of KCC reacts to water conduction were analyzed. |
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| Keywords: | karstic collapse column reactivation criterion crack propagation |
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