余吾煤业公司煤岩体赋存特征研究与分析

Study and Analysis at Ingredient Occurrence Characteristic in Yuwu Mining Company

余吾煤业公司是潞安矿区目前埋深最大的高瓦斯矿井。井田内陷落柱、断层及褶曲等构造多,开采过程同时受到各种构造应力的影响,为深井高应力复杂条件下的软弱煤层开采。通过对余吾煤业公司地应力、围岩强度测试、节理裂隙观察,结合矿井经历的多次大的构造运动,基本弄清了余吾煤业公司煤岩体赋存特征及规律,为今后矿井巷道布置及支护、工作面布置奠定了坚实基础。

Yuwu Mining Company is the biggest hidden high gas coat mine in Lu＇an mining area. Because of many structures such as foundering post, faultage and refractionation,it influenced by kinds of stress. So it become soft coal seam mining in deep pit. Through testing crustal stress, surronding rock intensity, observation joint fissure and combined tectogenetic movement times without number, We make clear the ingredient occurrence characteristic and rule, which has establish solid basis for shaft drift g arrangement, supporting and face arrangement.