CAJ | 학술논문

采用正交数值模拟试验方法研究了不同参数对巷道两帮移近量和顶底板移近量的影响。选取6个因素(巷道宽度、巷道高度、埋深、侧压系数、围岩强度和支护强度)、3个水平的正交试验方案，进行FLAC 数值模拟试验，运用方差分析法对模拟结果进行分析，并在井下进行工业性试验，结果表明：6个因素对巷道两帮移近量和顶底板移近量都有一定的影响，但影响程度不同。影响两帮移近量因素的程度大小的次序为：围岩强度>支护强度>埋深>侧压系数>巷道高度>巷道宽度；影响顶底板移近量因素的程度大小的次序为：围岩强度>支护强度>埋深>侧压系数>巷道宽度>巷道高度。井下试验结果与数值模拟结果基本相符，说明正交数值模拟方法对指导现场支护有一定的可靠性。
채용정교수치모의시험방법연구료불동삼수대항도량방이근량화정저판이근량적영향。선취6개인소(항도관도、항도고도、매심、측압계수、위암강도화지호강도)、3개수평적정교시험방안，진행FLAC 수치모의시험，운용방차분석법대모의결과진행분석，병재정하진행공업성시험，결과표명：6개인소대항도량방이근량화정저판이근량도유일정적영향，단영향정도불동。영향량방이근량인소적정도대소적차서위：위암강도>지호강도>매심>측압계수>항도고도>항도관도；영향정저판이근량인소적정도대소적차서위：위암강도>지호강도>매심>측압계수>항도관도>항도고도。정하시험결과여수치모의결과기본상부，설명정교수치모의방법대지도현장지호유일정적가고성。
The paper studies the impact of different parameters on two-sided displacement and con-vergence between roof and floor by using orthogonal numerical simulation test method. Six factors such as roadway width, roadway height, burial depth, lateral pressure coefficient, strength of surrounding rock and support strength, and three levels of orthogonal experiment method are selected to conduct FLAC numerical simulation test. The simulation results by variance analysis method is analyzed and industrial tests in the underground is conducted. The results show that the six factors have some impact on the two-sided displacement and convergence between roof and floor, but the impact levels are dif-ferent. The order of the magnitude of factors affecting two-sided displacement is strength of surrounding rock, support strength, burial depth, lateral pressure coefficient, roadway height, roadway width;the or-der of the magnitude of factors affecting convergence between roof and floor is strength of surrounding rock, support strength, burial depth, lateral pressure coefficient, roadway width, roadway height. Test results tested in the underground are well consistent with numerical simulation results, which indicates that there are certain degree of reliability to guide field support work with orthogonal simulation method.