摘要
5含水状态是影响岩石蠕变力学性质的一个重要因素,隧道开挖后因渗流路径的增加将改变围岩的含水状态,且使围岩力学性质遇水弱化。以浙江省上三线高速公路任胡岭隧道工程勘探岩样为研究对象,通过干燥和饱水两种状态下岩石蠕变试验结果的对比,探讨了岩石蠕变受含水状态影响的规律性,并根据广义Kelvin模型求得了两种状态下岩石蠕变的模型参数,分析了模型参数变化的规律性。
Water content is an essential factor of mechanical properties of rock creep. In this paper, through the results of creep tests of dry and saturated rock specimens under different uniaxial compressive stress, the law of how the water content affects the mechanical properties of rock creep is studied. Then, according to Generalized Kelvin Model, the parameters of rock creep are attained and analyzed under different water contents and different compressive stress level.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第12期1791-1796,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
博士点基金(19999024719
RFDP)
和国家自然科学基金(40172095)资助项目。
关键词
隧道
围岩
蠕变
力学性质
试验
Compressive stress
Creep
Creep testing
Mechanical properties
Water
