摘要
当前,我国东部矿井以村庄压煤为主,由于土地紧张,矿山企业面临村庄下采煤迁村困难、地表稳定后村庄重建周期长、严重影响村民生活等问题。为此,跟据采动过程中村庄房屋就地重建思路,以地表剩余变形量选择房屋就地重建的时机和区域,从煤炭开采空间传递及分布的角度,将开采空间分为地表沉陷空间、不可释放空间(即岩石碎胀所占空间)和可释放空间,并结合概率积分法模型和时间函数推导了剩余变形量的计算方法。以峰峰矿区为例进行了应用研究,结果表明:采用所提方法准确计算出采动过程中就地重建的时间和区域,与地表稳定后重建房屋相比,采动过程中建房的时间由4.2 a提前到0.5 a,提前了3.7 a,时间效率提高了88.1%;采动中房屋重建时间效率大幅度提升,极大地改善了当地村民生活环境及质量。研究成果对于我国矿区村庄下压煤开采房屋就地重建工作有一定的参考作用。
At present,the mines in Eastern China are dominated by pressed coal in villages.Due to the shortage of land,mining enterprises are facing some problems,such as the difficulty of coal mining under the village,the long period of village reconstruction after surface stability,and seriously affecting the lives of villagers.Therefore,the idea of local reconstruction of village houses during mining is adopted,the time and area of local reconstruction of houses by the residual deformation of the surface is selected,and the mining space is divided into surface subsidence space,non releasing space,that is,the space occupied by rock fragmentation and expansion,and releasable space from the perspective of spatial transmission and distribution of coal mining.Besides that,the calculation method of residual deformation by combining the model of probability integral method and time function is deduced.Taking Fengfeng mining area as an example,the results show that the proposed calculation method can accurately calculate the time and area of in-situ reconstruction during mining.Compared with rebuilding houses after surface stabilization,the time of building houses during mining is advanced from 4.2 a to 0.5 a,which is 3.7 a earlier,and the time efficiency is improved by 88.1%.The time efficiency of house reconstruction during mining has been greatly improved,which has greatly improved the living environment and quality of local villagers.The research results are useful for the in-situ reconstruction of houses in coal mining under villages in mining areas in China.
作者
安士凯
周大伟
李亮
徐燕飞
白志辉
汪骁
AN Shikai;ZHOU Dawei;LI Liang;XU Yanfei;BAI Zhihui;WANG Xiao(Anhui Province Engineering Laboratory for Mine Ecological Remediation,Ping'an Coal Mining Engineering Technology Research Institute Co.,Ltd.,Huainan 232033,China;School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,China;Jizhong Energy Fengfeng Group Co.,Ltd.,Handan 056011,China)
出处
《金属矿山》
CAS
北大核心
2021年第11期173-180,共8页
Metal Mine
基金
国家自然科学基金项目(编号:51604266)
中央高校基本科研业务费专项(编号:2017QNA34)。
关键词
开采沉陷
剩余变形量
动态移动变形
建筑下压煤
房屋就地重建
mining subsidence
remaining deformation
dynamic movement and deformation
coal under construction
houses reconstructed on-site
