摘要
为了研究深部极不充分采动条件下地表最大下沉值Wmax与采动程度系数n′之间的关系,通过对张小楼煤矿深部开采地表移动观测站实测资料进行分析研究,得出深部开采地表为极不充分采动时,采动程度对地表的下沉有着非常明显的控制作用,下沉率较小,下沉盆地平缓;当采动程度系数达到或超过1/3时,地表下沉急剧地增大,影响范围较大。
In order to study the deep deeply fully mining under the condition of the surface subsidence value biggest Wmax and mining degree coefficient n＇,the relationship between the deep mining of coal mine based on a small building research and analyze the observed data of surface movement observation station,it is concluded that deep mining surface for highly sufficient mining,mining level has a very significant control effect on surface subsidence, subsidence rate is smaller, subsidence basin gently; When the mining degree coefficient reaches or exceeds 1/3 ,the surface subsidence dramatically increases and the influence is larger.
作者
拓万兵
陈昱蓉
吴凤民
赵新坤
TUO Wan-bing;CHEN Yu-rong;WU Feng-min;ZHAO Xin-kun(School of Mining and Chemical Engineering,China University of Mining and Technology Yinchuan College,Yinchuan 750021,China)
出处
《煤炭技术》
CAS
2018年第11期43-45,共3页
Coal Technology
基金
宁夏高校科研项目资助(NGY2017230)
关键词
深部开采
最大下沉值
采动程度系数
deep mining
maximum subsidence
coefficient of mining degree
