标题：Numerical Simulation of Building Foundation Stability above Old Longwall Goaf
作者：Jiang, Ning; Chen, Shaojie; Yin, Dawei; Chang, Xikun; Guo, Weijia
作者机构：[Jiang, Ning; Chen, Shaojie; Yin, Dawei; Chang, Xikun; Guo, Weijia] Shandong Univ Sci & Technol, State Key Lab Mine Disaster Prevent & Control, Qingda 更多
会议名称：9th China-Russia Symposium on Coal in the 21st Century - Mining, Intelligent Equipment and Environment Protection
会议日期：OCT 18-21, 2018
来源：PROCEEDINGS OF THE 9TH CHINA-RUSSIA SYMPOSIUM COAL IN THE 21ST CENTURY: MINING, INTELLIGENT EQUIPMENT AND ENVIRONMENT PROTECTION
关键词：old longwall goaf; foundation; stability evaluation; residual; deformation; numerical simulation
摘要：In order to analyze and evaluate the residual deformation of longwall goaf and its effect on new buildings, the stability of building foundation above the old longwall goaf was studied using the FLAC3D software. According to the results of probability integral method, the mechanical parameters of the geologic body were solved by inversion analysis. The subsidence deformation of building foundation above longwall goaf under the ground building loads and vertical stress were calculated by numerical simulation. By comparing the deformation of building foundation above longwall goaf before and after grouting and building, the stability of building foundation above longwall goaf and the security of the building were evaluated.