岩爆机理的统计损伤解释  

STATISTICAL DAMAGE MECHANISM OF ROCKBURST

作　　者：梁志勇[1] 连凌云 石豫川[1] 

机构地区：[1]成都理工大学环境与土木工程学院,成都610059 [2]辽宁水工勘察院,大连116037

出　　处：《地质灾害与环境保护》2004年第2期23-26,共4页Journal of Geological Hazards and Environment Preservation

基　　金：四川省杰出青年学科带头人培养计划资助项目(03ZQ026-045)

摘　　要：　基于岩石力学试验成果的基础上,论证了统计损伤力学对脆性岩石单轴压缩变形破坏的解释的合理性。进而提出采用平行杆模型模拟洞室围岩,以西南某深埋隧洞为例,推出了岩爆应力强度比判据分界点的统计损伤意义。并通过对比理论曲线与实际岩爆的声发射特征及整体围岩变形破坏表现,从统计损伤理论上解释了岩爆的发生机理。Based on the mechanical test of the rock, it is proved that the distortion and destroy of the brittle rock can be interpreted logically by statistical damage mechanics and parallel poles model to simulate the surrounding rockmass of tunnel is introduced. The statistical damage mechanical essence of the stress-strength ratio criterion is discovered on the base of the data from a SW deep lying tunnel. The statistical damage mechanical mechanism of rockburst is interpreted by contrast the theoretic curve with the factual AE and destroy character of the surrounding rockmass.

关 键 词：岩石力学 统计损伤力学 岩爆机理 平行杆模型 脆性岩石 

分 类 号：TU452[建筑科学—岩土工程]