冲击地压的综合防治

Comprehensive Outburst Provention and Control

国内外实践表明,解决冲击地压问题的根本途径在于综合防治。综合防治包括冲击危险鉴别和预测、治理措施以及治理效果检查三个主要部分。门头沟煤矿现开采的二、五、七槽煤均为有冲击地压危险的煤层。煤层厚度一般为0.7～3.5m。各煤层顶板均为坚硬的石英砂岩,平均厚度10～30m。

Domestic and overseas practice indicates that comprehensive outburst provention.and control is a basic method solving outburst problem.It mainly consists of 3 parts:outburst identification and prediction;provention and control;and inspection of results.There is danger of outburst in Mentougou mine,Beijing Coal Mine Administration,227 times of harmful outburst occured between1947 and1983,a better control result has been obtained due to the efforts on experimentation of comprehensive provention and control. This paper includes identification and prediction methods of outdurst which are as followings coal drillings method,ways of outburst provention and control:water injection into coal body and artifical Cutting off roof and unloading explosion,the experimental process and effects.Some of parameters are given In Mentougou mine condition which can be used in other similar coal mines having danger of outburst.