摘要
老君堂煤矿开采的二，煤属典型的豫西三软煤层，煤层顶板处于滑动构造影响下的破碎状态，浅部煤层倾角大，高达45^o～70^o，平均厚度只有2．32m。针对煤层及顶底板的客观条件，首次提出了走向双分段放顶煤采煤方法的概念，详细论述了巷道布置方式，并在老君堂煤矿进行了试验研究，取得了较理想的效果。
The mining seam of B1 seam in Laojuntang Mine was a typical Yuxi seam with soft roof, coal and floor. Under the influence of the sliding structure, the seam roof was broken. The seam with a shallow mining depth had a high inclined angle ranging from45^o - 70^o and the average thickness of the seam was only about 2. 32m. According to the objective conditions of the seam, roof and floor, the paper firstly provided the conception of the strike two stage top coal caving mining method and in detail stated the layout of the mining gateways. An experimental study was conducted in Laojuntang Mine with ideal results.
出处
《煤炭工程》
北大核心
2008年第10期10-11,共2页
Coal Engineering
关键词
滑动构造
大倾角
采煤方法
sliding structure
high inclined angle
coal mining method
