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煤礦過大落差斜交斷層安全技術措施

作者:原則 2022-03-01 來源:煤礦安全網 煤礦 落差 斜交斷層安全技術措施

  對于這種類型的斷層也要用另掘開切眼跳過斷層,由于斷層與工作面斜交,斷層兩側出現三角煤,為了提高回采率,應予以回采,根據不同情況又可采用下面兩種方法。

 ?、?當斷層與真傾斜夾25º--45º角時,工作面應按真傾斜沿下走向推進,工作面的縮短部分留作通道,作為通風和安全出口,工作面縮短到10—20米時,即可開始停采。

 ?、?當夾角小于25º時,采用夾楔子調面的方法處理,這時工作面的推進保證直線。

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