ABSTRACT

: The mechanical behaviors of a jointed rock mass are strongly affected by the property and geometry of joints. In the present study, a constitutive model of rock masses with multiple fracturing joints is proposed. It reflects the effect of orientation and density of joints. Then, the proposed constitutive model is implemented into a finite element analysis code. As an example, a problem of excavation of a power station cavern is analyzed. Characteristic features of displacement distribution, the opening and sliding of joints, and the change in the tensile forces in prestressed anchorage bars during excavation process are captured in the present analysis.

Keywords:
Reservoir Characterization, displacement, power station cavern, constitutive modeling, prestressed anchorage bar, incremental displacement jump, excavation, cavern wall, finite element analysis code, displacement jump
Subjects:
Reservoir Characterization
This content is only available via PDF.
1994. A.A. Balkema - Permission to Distribute - American Rock Mechanics Association
You can access this article if you purchase or spend a download.