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预应力锚杆支护参数的设计

Hong-pu KANG,Tie-ming JIANG,Fu-qiaag GAO

Meitan Xuebao/Journal of the China Coal Society（2008）

Cited 52|Views10
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Abstract
在不考虑原岩应力场的条件下,采用有限差分数值计算软件FLAC3D,分析了锚杆预应力、锚杆长度、锚杆支护密度、锚杆安装角度及锚固方式等支护参数对锚杆预应力引起的应力场一锚杆预应力场的影响.基于数值模拟结果,结合井下应用情况,对预应力锚杆支护涉及的参数,包括预应力,锚杆直径、强度、长度、密度、角度,锚固方式,组合构件参数,锚索支护参数等进行了全面、系统的分析,提出了预应力锚杆支护参数选择的原则、范围.
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Key words
Bolting parameters,Pretensioned stress,Rock bolting
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