中国科技核心期刊
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某矿山地下开采对地表建（构）筑物的安全影响
- 作者：
- 刘伟明|刘瑞蒙|李天宏|贾彦州|辛明禹
- 作者单位：
- 山东烟台鑫泰黄金矿业有限责任公司|中国矿业大学（北京）能源与矿业学院|山东烟台鑫泰黄金矿业有限责任公司|山东烟台鑫泰黄金矿业有限责任公司|山东烟台鑫泰黄金矿业有限责任公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 刘伟明（1984—），男，工程师，从事采矿技术研究及安全管理工作；E-mail:3171688388@qq.com
- 通讯作者：
- isnull
- PDF下载
Safety impact of underground mining on surface buildings （structures） in a mine
- English Author：
- Shandong Yantai Xintai Gold Mining Co.,Ltd.|School of Energy and Mining Engineering,China University of Mining and Technology-Beijing|Shandong Yantai Xintai Gold Mining Co.,Ltd.|Shandong Yantai Xintai Gold Mining Co.,Ltd.|Shandong Yantai Xintai Gold Mining Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
为科学预测矿山地下开采对村庄、民房等建（构）筑物的安全影响，防止开采活动造成建（构）筑物的破坏，根据矿山地质和设计资料，利用地表岩移变形理论对主要矿体的地表最大下沉值、影响半径、地表最大倾斜率、地表最大曲率和地表最大水平变形值进行计算，确定理论上的保护等级；采用Flac3D数值模拟软件对矿山的开采过程进行模拟，分析和总结了地表沉降值及地表变形的变化规律。通过理论公式计算，得出了矿区地表最大倾斜率、曲率和水平变形值分别为0.063 mm/m、1.6×10-6m-1、3.7 mm/m，小于地表建（构）筑物保护等级对应的允许变形值，且地表变形值与所设置地表监测点的位移数据相符。研究结果表明，在按照设计要求进行开采的基础上，矿山开采引起的地表变形不会对地表建（构）筑物安全造成威胁，为矿山建设和安全生产提供了理论依据。
关键词:
数值模拟；地表变形；构筑物保护；房柱采矿法；嗣后充填
Abstract:
To scientifically predict the safety impact of underground mining in mines on buildings （structures） such as villages and residential buildings,and to prevent mining activities from causing damage to buildings (structures),this study utilized the theory of surface rock movement and deformation to calculate the maximum surface subsidence,impact radius,maximum surface inclination rate,maximum surface curvature,and maximum surface horizontal deformation values of the main ore body based on mine geological and design data.The theoretical protection level was determined.Flac3D numerical simulation software was used to simulate the mining process in the mine,analyze and summarize the variation patterns of surface subsidence and deformation.Through theoretical formula calculations,the maximum surface inclination rate,curvature,and horizontal deformation values on the mine area were found to be 0.063 mm/m,1.6×10-6 m-1,and 3.7 mm/m,respectively,which are less than the allowable deformation values corresponding to the protection level of surface buildings (structures).The surface deformation values were consistent with the displacement data of the surface monitoring points set up.The research results indicate that,based on mining according to design requirements,the surface deformation caused by mining activities will not pose a threat to the safety of surface buildings (structures),providing a theoretical basis for mine construction and safety production.
Keywords:
numerical simulation;surface deformation;buildings (structures) protection;room-and-pillar mining method;subsequent backfilling
