摘要
岩体中存在大量孔洞、节理和裂隙,它们作为岩体的初始损伤而存在其中。正是由于这些节理裂隙的初始损伤、损伤演化、扩展断裂等缺陷导致岩体产生了各种形式的破坏。根据节理裂隙的扩展断裂机理,深入研究了节理扩展及扩展相互作用对岩体强度特性的影响,建立了节理岩体断裂破坏强度模型,并将该模型用于指导广东大湾油库山体高边坡支护设计,取得了令人满意的效果,创造了显著的经济效益。
There are lots of pore spaces, joint planes and cracks, and they are a kind of initial damage in rock mass. It is the initial damage, damage evolution and propagation fracture that result in various failure of jointed rock mass. The influence of crack propagation process and interaction of cracks on rock mass strength is systematically studied according to propagating-fracture mechanism of jointed cracks. A fracture failure strength model for jointed rock mass is established, and applied to guide reinforcement design for a high rock mass slope at Dawan oil depot in Guangdong Province. Some satisfactory computational results are obtained and remarkable economic benefits are achieved from the model.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第20期3504-3508,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家杰出青年科学基金B类(50229901)资助课题
关键词
岩石力学
断裂破坏强度模型
裂隙扩展
山体边坡支护
Crack propagation
Failure (mechanical)
Finite element method
Fracture
Slope protection
