摘要
在冲积层煤柱开采过程中,针对防治水、围岩支护、施工工艺、安全管理等影响安全开采的几类主要因素,通过现场不断地实践,总结出复杂条件下冲积层煤柱安全开采时巷道掘进期间及工作面回采期间的围岩控制专项措施,保证了冲积层边角煤工作面的安全、高效开采,提高资源回收率,经济与社会效益显著。
In the mining process of alluvium coal pillar,aiming at the main factors influencing safety mining,such as water prevention,surrounding rock support,construction technology and safety management,through practices,the special measures of surrounding rock control during the period of roadway tunneling and face mining in the complex conditions were summarized,the safety and efficient mining of alluvial residual coal was ensured and resource recovery rate was improved,which has remarkable economic and social benefits.
出处
《陕西煤炭》
2017年第5期21-23,68,共4页
Shaanxi Coal
关键词
冲积层煤柱
围岩控制
防治水
安全措施
alluvium coal pillar
surrouding rock ccrntrol
water preve＋tiem
safety measures
