摘要
充填法采矿可有效控制地表坍塌和变形,符合安全高效开采的理念。但长期现场实践表明,充填开采也会导致地表发生变形、移动,甚至塌陷,只是地表变形宏观显现现象周期较长,为此提出了充填法开采地表岩移滞后期的概念,进而分析了充填法开采引起地表岩移滞后的主要原因。并以采用充填法开采已久的某典型矿山为工程背景,探究了充填体强度、回采顺序、留设矿柱、残余空间及井巷开拓空间等因素对岩移滞后性的影响。
Cut-and-fill mining can effectively control the collapse and deformation of the surface,which is in line with the concept of safe and efficient mining.Long-term field practice shows that cut-and-fill mining can also cause deformation,movement and collapse of the surface.The hysteresis concept of surface rock movement in cut-and-fill mining is proposed owing to long period of macroscopic appearance of the surface deformation,thus analyzing the main hysteresis reasons of surface rock movement caused by cut-and-fill mining.This paper takes a typical mine which has been mined by filling method for a long time as engineering background,discusses the effects of the filling body strength,stoping sequence,retained pillars,residual space and development space of the roadway on the hysteresis of rock movement.
作者
樊忠华
许振华
龚囱
门建兵
FAN Zhonghua;XU Zhenhua;GONG Cong;MEN Jianbin(China Nerin Engineering Co.Ltd.,Nanchang,Jiangxi 330038,China;School of Resources and Environment Engineering,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China)
出处
《有色冶金设计与研究》
2018年第6期1-4,共4页
Nonferrous Metals Engineering & Research
基金
国家自然科学基金青年基金项目(51704128)
关键词
充填采矿
地表岩移
滞后性
影响因素
cut-and-fill mining
surface rock movement
hysteresis
influencing factors
