山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2014年
11期
12-14
,共3页
窄煤柱%强矿压%高强度锚网索支护
窄煤柱%彊礦壓%高彊度錨網索支護
착매주%강광압%고강도묘망색지호
narrow pillar%high pressure mines%high-strength steel mesh
采用数值模拟配合现场实测的方法,研究了巷道围岩应力、围岩内部裂隙的分布及其演化规律。通过对两侧沿空巷道大、小结构的形成机制、运动方式和特点分析,揭示了上覆岩体大结构与小结构稳定性的原理及其对巷道稳定的影响,由此得出了保证煤柱内强矿压巷道围岩稳定的控制机理。同时采用理论分析和数值计算的方法,确定了窄煤柱内强矿压巷道的合理层位和位置,提出了针对煤柱内强矿压巷道的高强度锚网索支护技术体系,并在330辅助回风巷进行应用。
採用數值模擬配閤現場實測的方法,研究瞭巷道圍巖應力、圍巖內部裂隙的分佈及其縯化規律。通過對兩側沿空巷道大、小結構的形成機製、運動方式和特點分析,揭示瞭上覆巖體大結構與小結構穩定性的原理及其對巷道穩定的影響,由此得齣瞭保證煤柱內彊礦壓巷道圍巖穩定的控製機理。同時採用理論分析和數值計算的方法,確定瞭窄煤柱內彊礦壓巷道的閤理層位和位置,提齣瞭針對煤柱內彊礦壓巷道的高彊度錨網索支護技術體繫,併在330輔助迴風巷進行應用。
채용수치모의배합현장실측적방법,연구료항도위암응력、위암내부렬극적분포급기연화규률。통과대량측연공항도대、소결구적형성궤제、운동방식화특점분석,게시료상복암체대결구여소결구은정성적원리급기대항도은정적영향,유차득출료보증매주내강광압항도위암은정적공제궤리。동시채용이론분석화수치계산적방법,학정료착매주내강광압항도적합리층위화위치,제출료침대매주내강광압항도적고강도묘망색지호기술체계,병재330보조회풍항진행응용。
Use of numerical simulation with field measurement methods, studies the roadway stress, internal distribution and evolution of rock ifssures. Through the big sides along the roadway, the formation mechanism of small structures, movement pattern and characteristics analysis revealed a large structural principle of the overlying rock and small structural stability and stabilizing inlfuence on the roadway, which is proposed to ensure that coal strong pressure mine roadway stability control mechanism of the column. While using theoretical analysis and numerical calculation method to determine the strong pillar in the thick coal mine roadway reasonable pressure horizons and location for the proposed roadway pressure inside strong pillar mining of high-strength steel mesh and anchor support technology system, and 330 were assisted return airway industrial test.