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高压注水强制垮落法是有希望解决坚硬顶板冒落问题的方法之一。坚硬顶板处理方法已在中国、澳大利亚和其它国家试用过。这种高压注水压裂顶板技术已在印度东南煤炭公司恰恰矿的西10采区试用过。本文论述了在井下上覆岩中回收煤柱中11个深斜孔采用高压注水实验的发现。
High-pressure water injection forced caving method is promising one solution to the problem of hard roof caving. Hard roof treatments have been tried in China, Australia and other countries. This high-pressure water injection fracturing roof technology has been tested in the West 10 mining area of Qiaqia Mine, a southeast Indian coal company. This paper discusses the discovery of 11 deep inclined holes in the overburden strata that are recovered from coal pillars by high-pressure water injection.