首页> 外国专利> METHOD OF PERFORMINING MINING WORK IN TECTONICALLY HAZARDED SEDIMENTARY DEPOSITS IN PARTICULAR OF COAL

METHOD OF PERFORMINING MINING WORK IN TECTONICALLY HAZARDED SEDIMENTARY DEPOSITS IN PARTICULAR OF COAL

机译:在煤特别是构造危险的沉积物中进行采矿工作的方法

摘要

The system is e.g. for mining coal from an underground seam without allowing roof falls, rock bursts etc. The rate of mining and the sequence of cutting the coal is optimised to avoid applying excessive stress to the rock strata as the settle into the void left by the removal of the coal. Easing of the strain on the strata reduces the likelihood of sudden escapes of gas, e.g. fire damp, choke damp etc. Flat or linear regions may be pre-drilled to induce resilience and reduce stress.
机译:该系统例如用于从地下煤层开采煤炭,而不会导致顶板坠落,岩石破裂等。优化了开采速度和切割煤炭的顺序,以避免由于去除煤层而沉降到空隙中时,对岩层施加过大的压力。煤炭。减轻地层上的应变降低了气体突然逸出的可能性,例如可以预先钻孔平坦或线性区域以产生回弹力并减少应力。

著录项

  • 公开/公告号PL185118B1

    专利类型

  • 公开/公告日2003-02-28

    原文格式PDF

  • 申请/专利权人 RUHRKOHLE AG;

    申请/专利号PL19970321084

  • 发明设计人 LOOS JOACHIM;EHRHARDT WILHELM;

    申请日1997-07-11

  • 分类号E21C41/18;

  • 国家 PL

  • 入库时间 2022-08-22 00:01:35

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