Time-lapse geophysical technology-based study on overburden strata changes induced by modern coal mining

被引：18

作者：

Du W. ^{[1
]}

Peng S. ^{[1
]}

Zhu G. ^{[1
]}

Yang F. ^{[1
]}

机构：

[1] State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing

来源：

International Journal of Coal Science & Technology | 2014年 / 1卷 / 2期

关键词：

Coal mining; Geophysical prospecting; Modern coal mining; Overburden strata; Strata changes; Time lapse;

D O I：

10.1007/s40789-014-0028-z

中图分类号：

学科分类号：

摘要：

To study the impact of modern coal mining on overlying strata and its water bearing conditions, integrated time-lapse geophysical prospecting integrating 3D seismic, electrical and ground penetrating radar method were used. Through observing and analyzing the geophysical data variations of all stages of pre-mining, mining and post-mining as well as post-mining deposition stable period, impacts of coal mining on stratigraphic structure and its water bearing were studied and modern coal mining induced stratigraphic change pattern was summarized. The research result shows that the stratigraphic structure and the water bearing of surface layer during modern coal mining have self-healing pattern with mining time; the self-healing capability of near-surface strata is relatively strong while the roof weak; water bearing self-healing of near-surface strata is relatively high while the roof strata adjacent to mined coal beds low. Due to integrated time-lapse geophysical prospecting technology has extra time dimension which makes up the deficiency of static analysis of conventional geophysical methods, it can better highlight the dynamic changes of modern coal mining induced overburden strata and its water bearing conditions. © 2014, The Author(s).

引用

页码：184 / 191

页数：7

共 15 条

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