【作者】 张启霞；

【导师】 程桦；

【作者基本信息】 安徽理工大学 ， 结构工程， 2008， 硕士

【摘要】 本文通过数值模拟分析了马头门结构力学特性。以淮北刘店煤矿为工程背景,综合考虑影响巷道围岩变形的各种因素,采用ANSYS大型通用数值模拟软件,建立三维弹性模型,设计了三种不同开挖顺序的方案,模拟巷道断面形状和不同的掘进顺序对马头门结构围岩稳定性的影响,揭示了马头门结构围岩的动态变形破坏机理,根据受力特点得出有利于围岩稳定的开挖顺序和支护的优化方案;依据现场测定松动圈厚度的经验公式计算了马头门断面松动圈厚度,与现场实测马头门断面松动圈结果进行了对比分析,并依据经验类比法和巷道围岩松动圈支护理论设计了适合深立井连接硐室围岩变形控制的锚、网、索、喷联合支护方法,从后期应用情况和实际监测结果来看,取得了良好的效果,对今后指导深立井连接硐室的设计与施工有较高的参考价值。更多还原

【Abstract】 This paper analysed the mechanical properties of horsehead structure through the mumerical simulation. Huaibei Liu Shop Coal Mine for engineering background, comprehensive considerated the impactative various factors of roadway deformation,using ANSYS large numerical simulation software, established a 3-D elastic model, designed three different program of excavation subsequence, simulated roadway cross-section shape and different excavation subsequence to impact the stability of the horsehead rock structure, revealed the rock deformation characteristics of horsehead structure, according to the characterictics of force, obtained optimizative programme that benefits to rock stability and supporting; calculated the horsehead section loose circle thickness based on the experimental loose circle computing formula, with comparative analysed the results of field engineering, designed bolts、metal network、anchor wire、shotcrete unified support method conform to deep shaft connecting chamber deformation controlling on the basis of experience analogy and roadway rock loose circle supporting theory, and with the later application and the actual monitoring results, achieved good results, and has a high reference value to guide the future desigination and construction of deep shaft connecting chamber.更多还原