山西焦煤科技
山西焦煤科技
산서초매과기
SHANXI COKING COAL SCIENCE & TECHNOLOGY
2015年
1期
18-20,24
,共4页
李屹博%田茂林%刘志刚%高飞
李屹博%田茂林%劉誌剛%高飛
리흘박%전무림%류지강%고비
煤柱%数值模拟%棚索协同%底板锚网索
煤柱%數值模擬%棚索協同%底闆錨網索
매주%수치모의%붕색협동%저판묘망색
Coal pillar%Numerical simulation%Shed cooperate with cable%Floor anchor net and cable
许疃煤矿82联巷原有支护方式为36 U型钢支架喷浆支护，受巷道上方煤柱上高支承压力的影响，巷道变形强烈。根据巷道现有变形破坏特征，分析了其破坏内在原因，采用FLAC2D6．0软件对不同的支护方案进行数值模拟对比分析。结果表明，棚索协同支护＋全断面注浆加固＋底板高强锚网索支护，有效改善了巷道浅部围岩结构，现场工业性试验结果表明，巷道围岩变形量小，围岩变形得到有效控制。
許疃煤礦82聯巷原有支護方式為36 U型鋼支架噴漿支護，受巷道上方煤柱上高支承壓力的影響，巷道變形彊烈。根據巷道現有變形破壞特徵，分析瞭其破壞內在原因，採用FLAC2D6．0軟件對不同的支護方案進行數值模擬對比分析。結果錶明，棚索協同支護＋全斷麵註漿加固＋底闆高彊錨網索支護，有效改善瞭巷道淺部圍巖結構，現場工業性試驗結果錶明，巷道圍巖變形量小，圍巖變形得到有效控製。
허탄매광82련항원유지호방식위36 U형강지가분장지호，수항도상방매주상고지승압력적영향，항도변형강렬。근거항도현유변형파배특정，분석료기파배내재원인，채용FLAC2D6．0연건대불동적지호방안진행수치모의대비분석。결과표명，붕색협동지호＋전단면주장가고＋저판고강묘망색지호，유효개선료항도천부위암결구，현장공업성시험결과표명，항도위암변형량소，위암변형득도유효공제。
The original support pattern of 82 linking roadway of Xutuan coal mine is 36 U-shaped steel bracket guniting,but affected by high bearing pressure on the coal pillar above roadway,the roadway deforms strongly.Bases on the characteristics of existing roadway deformation, analyzes the underlying causes of destruction. Adopts FLAC2D6.0 numerical simulation software,contrasts and analyzes the different support scheme.The results show that Shed cooperate with cable support,whole section grouting reinforcement and floor reinforced anchor net cable support can effectively improve shallow surrounding rock structure of roadway.On-site industrial test results show that the roadway surrounding rock deformation is tiny,the deformation of surrounding rock is effectively controlled.
