基于FLAC3D模拟的14103辅运顺槽支护参数设计  

Support Parameters Design for 14103 Auxiliary Transport Crossheading Based on FLAC3D Simulation

作　　者：李鹏 Li Peng(Sihe Colliery,Jinneng Holding Equipment Manufacturing Group.,Jincheng,Shanxi 048204)

机构地区：[1]晋能控股装备制造集团寺河煤矿,山西晋城048204

出　　处：《江西煤炭科技》2025年第1期90-92,96,共4页Jiangxi Coal Science & Technology

摘　　要：针对拟施工的麻家梁矿14103辅运顺槽掘进工作面掘进期间受邻近工作面采动影响大、围岩稳定性差等问题,基于FLAC3D数值模拟计算手段,在不考虑原岩应力的影响下,对不同条件下锚杆的预应力与间距进行了模拟分析,通过对比预应力场扩散的范围与支护效果,确定了锚杆较为合适的预应力为80kN,间距为0.95m,在该支护方案下,巷道围岩整体稳定性良好,数值模拟结果显示,随着邻近工作面的回采,14103辅运顺槽顶板最大下沉量为45mm,巷道变形程度能够满足工作面正常生产需求。In view of the problems of large mining influence and poor stability of surrounding rock during the excavation of heading face in 14103 auxiliary transport crossheading of Majialiang Colliery,the author makes a simulation analysis of the prestress and spacing of the anchor under diferent conditions without considering the influence of the original rock stress based on the FLAC3D numerical simulation calculation method,and determines the support parameters with the more suitable prestress of the anchor being 80 kN and the spacing being 0.95 m by comparing the range of prestressed field diffusion and the supporting effect,whose numerical simulation results show that with the mining of the adjacent working face,the maximum roof subsidence of 14103 auxiliary transport crossheading is 45 mm,and the deformation degree of the roadway can meet the normal production needs of the working face with good overall stability of the surrounding rock of the roadway.

关 键 词：巷道支护 参数设计 数值模拟 预应力 

分 类 号：TD353[矿业工程—矿井建设]