大采高采煤工作面地表岩移规律研究

煤矿开采对地表的建筑物、生态环境等产生了影响，为了实现煤矿的可持续发展，需要对开采沉陷规律进行研究。采用现场观测的方法，布置了倾向观测线和走向观测线，对大采高23201、23103采煤工作面进行了全面观测和日常观测，并对观测结果进行了分析，确定了大采高采煤工作面地表沉陷的规律。该地表沉陷规律符合概率积分法预计模型，为“三下”开采保护煤柱的留设提供了理论依据。

Study on laws of surface rock movement of coal face with large mining height

Coal mining has an impact on the surface of the building，ecological environment，etc.，in order to achieve the sustainable development of coal mines，mining subsidence law needs to be studied.Using the method of field observation，the inclination observation line and strike observation line were arranged，and the comprehensive and daily observation were carried out on the large mining height 23201 and 23103 working faces，and the observation results were analyzed，the law of surface subsidence in large mining height coal face was determined，too.The law of surface subsidence accords with the prediction model of probability integral method，which provides a theoretical basis for the setting of protective coal pillar in "Three Under" mining.