锚杆支护参数对预紧力场敏感性影响的数值分析

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以徐矿集团新疆赛尔能源有限责任公司三矿大巷为研究对象,展开锚杆支护参数对其所产生的预应力场敏感性数值计算研究,在不考虑原岩应力场的条件下,运用FLAC3D数值模拟软件,分析锚杆(索)预应力场对其直径、长度、预紧力和密度的敏感性。基于锚杆预应力场对其参数敏感程度不同,提出锚杆支护参数选择的范围和方法。
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