Application of damage model in stability analysis of ShuangjiangKou underground caverns

被引：1
|
作者：
Xiang Lu [1 ]
Zhu Weishen [1 ]
Ma Qingsong [1 ]
Zhou Kui [1 ]
机构：
[1] Shandong Univ, Geotech & Struct Engn Res Ctr, Jinan, Peoples R China
来源：
FRACTURE AND STRENGTH OF SOLIDS VII, PTS 1 AND 2 | 2011年 / 462-463卷
关键词：
jointed rock mass; damage and fracture mechanics; evolution equation; numerical analysis; rock caverns; DEFORMATION;
D O I：
10.4028/www.scientific.net/KEM.462-463.1391
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A damage constitutive model was established to evaluate the stability of jointed rock masses around the underground caverns of Shuangjiangkou Hydropower Station. In this model, a second-order damage tensor was formulated to describe the initial geometric imperfection of jointed rock masses. A failure criterion for crack coalescence and a damage evolution equation were proposed by considering the secondary cracks induced by excavations according to the fracture mechanics principles. A subprogram under the framework of FLAC-3D was developed for the damage constitutive model and the damage evolution equation. The model and program were then applied in the stability assessment for the Shuangjiangkou underground cavern group.
引用
收藏
页码：1391 / 1396
页数：6
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