摘要
【目的】研究海湾煤矿42211工作面顶板垮落带及导水裂隙带的发育规律,探查其对工作面回采的影响范围。【方法】在经验公式推导计算的基础上,运用FLAC3D数值模拟软件,模拟不同推进距离下垂直应力分布和拉应力场分布下的覆岩“两带”高度变化规律。【结果】通过FLAC3D数值模拟得出42211工作面的“两带”发育高度。【结论】数值模拟结果和经验公式的计算结果接近,研究成果可以为此类工作面实测“两带”发育高度提供参考。
[Purposes]The development law of roof caving zone and water flowing fractured zone in 42211 working face of Haiwan Coal Mine is studied,and its influence range on working face mining is explored.[Methods]Based on the derivation and calculation of empirical formula,FLAC3D numerical simulation software was used to simulate the height variation of"two zones"of overlying strata under vertical stress distribution and tensile stress field distribution at different advancing distances.[Findings]Through FLAC3D numerical simulation,the development height of"two zones"in 42211 working face was ob⁃tained.[Conclusions]The results of numerical simulation are close to those of empirical formula,which can provide reference and research methods for the measured development height of′two zones′in this kind of working face.
作者
王涛
白云鹏
李斌
WANG Tao;BAI Yunpeng;LI Bin(Shenfu Econo Mic Development Zone Haiwan Coal Mine Co.,Ltd.,Shenmu 719300,China;CCTEG Chongqing Research Institute,Chongqing 400039,China)
出处
《河南科技》
2024年第9期39-43,共5页
Henan Science and Technology
基金
重庆市博士“直通车”项目(CSTB2023NSCQ-BSX0009)。
