为解决近距煤层开采采场矿压控制问题,对祁东煤矿6130、7130综采工作面进行了现场实测,得出了两工作面的初次来压、周期来压步距。在此基础上,结合理论计算和UDEC软件对采场覆岩的顶板破断、应力分布情况进行了模拟。
To solve the problem of strata behaviour control in coal mining in contiguous coal seams,in-situ observation and tests are carried out in Qidong coal mine 6130 and7130 fully mechanized longwall faces.The interval distances between the first weightings and periodic weightings are determined.On the basis of these,simulation is carried out on the status of overlying strata breakage in roof and stress distribution therein with the help of theoretical calculation and the use of UDEC software.