摘要
为了研究万利矿区浅埋煤层的地表移动变形规律,在4个工作面上进行了地表移动观测站实测工作。通过对实测数据的分析,得出适合矿区的地表移动参数。概率积分法预计参数拟合结果表明:综放开采下沉系数比综采下沉系数大15%左右;综采开采拐点偏移距较综放开采大;主要影响角正切tanβ为走向小、倾向大,倾向较走向大40%左右。
In order to research surface movement and deformation rule of shallow buried coal-seam mining in Wanli Area, surface movement observation was made over 4 mining faces. By analyzing observation data, surface movement parameters were obtained and used for surface subsidence prediction with probability integral method. Result showed that subsidence ratio of full-mechanized caving mining method was 15% larger than that of full-mechanized mining method, but deviation of inflection point was smaller than that of full-mechanized mining method, strike main influence angle tanl3was 40% smaller than that of trend main influence angle.
出处
《煤矿开采》
北大核心
2013年第4期8-13,61,共7页
Coal Mining Technology
基金
973国家重点基础研究发展计划(2012CB724208)
国家自然科学基金煤炭联合基金项目(51174112)
关键词
浅埋煤层
移动变形
预计参数
shallow buried coal-seam
movement and deformation
prediction parameter
