大台沟矿区深孔水压致裂原地应力测量及应用

来源期刊:中南大学学报(自然科学版)2015年第4期

论文作者:陈群策 孙东生 丰成君 许洪斌 佟志利 赵金生 李国岐

文章页码:1384 - 1393

关键词:水压致裂;原地应力;岩爆;辽宁本溪大台沟矿区

Key words:hydraulic fracturing; in-situ stress; rockburst; Benxi Dataigou Mine

摘    要:在辽宁本溪大台沟矿区开展水压致裂法原地应力测试,获得本溪地区2个超1 km深孔的原地应力实测结果,给出深度在1 309 m以内的原地应力实测剖面。从原地应力及岩石力学的角度对该矿未来深部的岩爆可能性进行预测。研究结果表明:大台沟矿区300 m以下深度均有发生不同程度岩爆的可能性,特别是1 100 m以下有发生强烈岩爆的危险性,矿区在未来的开发建设中需注意防范。

Abstract: Two deep boreholes over 1 000 m in-situ stress measurement were conducted by hydraulic fracturing method in Benxi Dataigou Iron Mine in Liaoning Province, and the sections of in-situ stress magnitude were obtained. The 1 309 m in-situ stress measurement depth was made. The rock burst probability of Dataigou Iron Mine area was predicted from the view of in-situ stress and rock mechanics point. The results show that Dataigou Iron Mine has the possibility of various degrees rock burst below 300 m depth, and especially below 1 100 m there is the possibility of violent rock burst. The related disaster must be prevented during the development and construction.

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