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北京矿务局门头沟煤矿采用煤层注水已六年之久,总注水量达37万米~3.注水煤层的煤产量为106万吨.实践表明,煤层注水不仅是行之有效的防尘措施,而且对防止和减轻冲击地压的发生也有一定的效果.为了研究煤层注水对防治冲击地压的有效性,找出合理的注水参数,煤炭科学院北京开采所、北京矿务局科研所和门头沟煤矿组成了试验小组,在实验室和试验采区,对煤层注水前后煤体力学性能的变化与冲击地压显现的关系进行了综合考察.
Beijing Mining Bureau Mentougou coal seam water injection has been six years, with a total water volume of 370000 meters ~ 3. Water flooding coal production was 1.06 million tons.Practice shows that the injection of coal is not only effective dust control measures, But also has a certain effect on preventing and reducing the occurrence of rockburst.In order to study the effectiveness of coal seam water injection to prevent rockburst and find out the reasonable waterflooding parameters, Beijing Institute of Coal Mining, Beijing Mining Bureau Scientific Research Institute and Mentougou Coal Mine Formed a test group in the laboratory and test mining area, coal seam before and after water injection mechanical properties of the changes and the relationship between the impact of ground pressure was comprehensively investigated.