厚砂层薄基岩浅埋煤层矿压显现规律研究

为解决厚砂层薄基岩浅埋煤层矿压控制问题,对宝山煤矿6101综采工作面(首采)进行现场实测。通过对顶板活动规律和来压机理的分析,揭示了宝山煤矿6101综采工作面的矿压显现规律,得出了该工作面的初次来压、周期来压步距。在此基础上,利用UDEC软件对采场覆岩的顶板破断、应力分布情况进行了模拟,模拟结果与实测结果基本相符。

Strata Pressure Behavior Study on Shallow Coal Seam with Thick Sand and Thin Bedrock

To solve strata pressure control of shallow coal seam with thick sand and thin bedrock,in-situ observation was carried out in Baoshan mine 6101 fully mechanized coalface,which is the first coalface.Through the analysis of roof movement law and weight mechanism,the law of strata pressure behavior and the pace of first weight and periodical weight were educed.On basis of these,the simulation by UDEC presented the status of roof breakage and stress distribution,which is consistent to the observation.