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Geostress measurement and analysis of the slope rockmass with hydraulic fracturing method in Gaocun Iron Mine

机译：高村铁矿边坡岩体水力压裂法地应力测量与分析

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摘要

A set of hydro-fracturing tests were conducted to obtain the geostress in 11 measuring segment of 2 boreholes ranging in depth from 164.92 to 373.98 m at locations of Gaocun Iron Mine of the Ma'anshan site in the east of China.Results of all hydro-fracturing tests showed that all of the HFT parameters increase with depth.Roughly, the relation among these parameters is SH ＞ Sv ＞ Sh.And the orientation of the maximum horizontal main stress is N326.5°W～N338.2°W with an average value of N332°W.It shows that the orientation of the main stress is close to NNW, and the ratio of maximum horizontal principal stress (he) to vertical principal stress (Sv) is 0.94～1.40 with an average value of 1.18 in 10 measuring points.Logging data and laboratory observations of core samples reveal the cracks oriented at N332°W±6°.This paper describes the various applications of the result of hydro fracturing, The gestures measurement results provide a solid basis for mining design.
机译：进行了一系列的水力压裂测试，以获取中国东部马鞍山高村铁矿所在两个钻孔的11个测量段的地应力，深度在164.92至373.98 m之间。断裂试验表明，所有的HFT参数都随深度增加。这些参数之间的关系大致为SH＞ Sv＞ Sh。最大水平主应力的方向为N326.5°W〜N338.2°W。结果表明，主应力方向接近NNW，最大水平主应力（he）与垂直主应力（Sv）之比为0.94〜1.40，平均值为1.18。在10个测量点上进行的测井数据和对岩心样品的实验室观察显示出裂缝在N332°W±6°上定向。本文描述了水力压裂结果的各种应用，手势测量结果为采矿设计提供了坚实的基础。

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  • 来源
  • 会议地点 Xian(CN)Xian(CN)
  • 作者

    Z.C.Zhang; Q.F.Guo; C.Peng; L.Zhao; H.Zhang;

  • 作者单位

    School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, China;

    School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, China;

    School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, China;

    School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, China;

    China Silicon Corporation Ltd, Beijing, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 岩石学;
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