Interaction between transverse isotropy rock slope and supporting structure
In order to study the interaction between transverse isotropy rock mass and supporting structure, the laboratory tests for rock sampled from the slope at expressway project were carried out, and the parameters of elasticity for transverse isotropie rock were determined by the uniaxial compression tests for rock sample with different strike of stratification plane. Then, based on the relationship of stress-stain for transverse isotropic rock mass, the analytical model was established for the interaction between transverse isotropic rock mass and frame beam with pre-stressed anchor cable. Furthermore, the conception of the best anchorage-angle in pre-stressed anchor cable was proposed. At last, the parameters of the interaction between transverse isotropy rock mass and frame beam with pre-stressed anchor cable were investigated by finite element method, and the best anchorage-angle in pre-stressed anchor cable was obtained. The rules of the influence of the directivity of stratification plane on supporting structure were determined. The results show that the analytical model and numerical method on the design of pre-stressed anchor cable with flame beam supporting for transverse isotropy rock slope are reasonable and reliable in practical engineering design.
rock mechanics transverse isotropy pre-stressed anchor cable frame beam finite element analysis anchorage angle
DUAN Liang-liang(段靓靓) FANG Li-gang(方理刚)
College of Civil Engineering, Architecture and Mechanics,Central South University of Forestry and Te School of Architectural and Civil Engineering, Central South University, Changsha 410075, China
国际会议
长沙
英文
415-423
2008-09-28（万方平台首次上网日期，不代表论文的发表时间）