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Study on the Length of the Anchor Bolt of Wall Rock for Deep-seated Underground Tunnels
Author(s): 
Pages: 4-6,51
Year: Issue:  5
Journal: Coal

Keyword:  锚杆深部岩层巷道支护交替区域破坏;
Abstract: 锚固深度问题历来是地下工程,尤其是在设计支护和衬砌时最为关心的问题,因为它直接影响工程的安全和造价.但由于锚固支护深度涉及的影响因素相当复杂,在长期工程实践中,锚固支护深度的计算主要是采用经验方法和建立在连续介质力学范畴内的岩石力学理论,但是对于深部岩层中的地下硐室来说,会出现一些不同于浅部特征的新的科学现象,即观察到了深部巷道围岩出现了破裂区和不破裂区多次交替的现象.因此,较优的锚杆支护方式是采...
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