煤炭与化工2023，Vol.46Issue(12)：22-26,5.DOI:10.19286/j.cnki.cci.2023.12.006
基于FLAC3D多煤层开采下大巷底鼓控制技术研究
Research on floor heave control technology of main roadway under multi seam mining based on FLAC3D
摘要
Abstract
With the increasing demand of coal resources,single coal seam resources decrease sharply,and multi-coal seam mining becomes more and more common.Different from single coal seam,the deformation of roadway surrounding rock caused by multi-coal seam mining is more serious and the law is more complicated.In order to study the deformation law and control technology of the surrounding rock of the main roadway under multi-coal seam mining,with Shaqu No.1 Mine in Shanxi as the engineering background,FLAC3D software was applied to analyze the deformation law of the main roadway under multi-coal seam mining from the perspective of the surrounding rock structure and rock mechanical properties,and the support scheme was designed according to the deformation law,and the three support schemes were optimized.The optimal support scheme of floor was obtained,and the pressure relief was made by grooving at the bottom corner of both sides of the main roadway.The feasibility of the design scheme was confirmed by the field monitoring results.关键词
多煤层开采/FLAC3D/数值模拟/围岩变形/围岩控制/巷道支护Key words
multi seam mining/FLAC3D/numerical simulation/surrounding rock deformation/surrounding rock control/roadway support分类
矿业与冶金引用本文复制引用
张家禄,谢建林,付玉平,李川田..基于FLAC3D多煤层开采下大巷底鼓控制技术研究[J].煤炭与化工,2023,46(12):22-26,5.基金项目
山西省重点研发计划(高新领域)(201603D121031) （高新领域）
山西省自然科学基金(201801D121278) （201801D121278）
