王再举, 姚直书. 潘北煤矿地应力测量及其特征分析[J]. 煤矿安全, 2014, 45(4): 169-171,175.
    引用本文: 王再举, 姚直书. 潘北煤矿地应力测量及其特征分析[J]. 煤矿安全, 2014, 45(4): 169-171,175.
    WANG Zaiju, YAO Zhishu. Measurement and Characteristics Analysis of Geo-stress in Panbei Coal Mine[J]. Safety in Coal Mines, 2014, 45(4): 169-171,175.
    Citation: WANG Zaiju, YAO Zhishu. Measurement and Characteristics Analysis of Geo-stress in Panbei Coal Mine[J]. Safety in Coal Mines, 2014, 45(4): 169-171,175.

    潘北煤矿地应力测量及其特征分析

    Measurement and Characteristics Analysis of Geo-stress in Panbei Coal Mine

    • 摘要: 为了了解潘北煤矿上覆围岩和岩层的稳定性情况,并且研究该矿地应力场的分布特征,利用空心包体应力解除法对该煤矿-490 m东翼第二抽水巷进行了地应力测量,获得了该矿的三维地应力的大小和方向。结果表明,该区域地应力以水平应力为主导,最大主应力近东西走向,是最小主应力的1.72~1.75倍;中间主应力与垂直方向的夹角平均为6.39°,这些与该矿区的地质构造有很大的关系。根据实测的地应力结果对原支护方案进行了优化,且优化效果明显。

       

      Abstract: In order to understand the stability condition of overlying strata and rocks of Panbei Coal Mine and research the distribution of geo-stress filed. Hollow inclusion stress relieving method was used to measure geo-stress of No.2 water pumping roadway at -490 m in east wing of Panbei Coal Mine, the size and direction of three-dimensional geo-stress was obtained. Results showed that horizontal stress was larger than vertical stress in this coal mine, maximum principal stress was near to east-west, which was 1.72 to 1.75 times of the minimum principal stress. The angle of medium principal stress and vertical stress was 6.39°, which is a great relationship with the geological structure of coal mine. Original supporting scheme was optimized by the measuring results of geo-stress, and the optimization effect is obvious.

       

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