摘要
本文研制了双重非线性有限元程序DNPSAP,然后用该程序进行大变形弹塑性有限元计算,结合地质力学模型试验和能量平衡法,探讨了工程中常见的层状岩体高边坡溃屈失稳时的应力,变位变化规律,失稳破坏机理和稳定性评价方法,着重探讨了倾角、坡长和岩层厚度变化对层状岩体高边坡溃屈失稳的影响。
At first ,the double-nonlinear finite element analysis program, DNPSAP, was developed. Then the large deformation elastic-plastic finite element analysis was carried out by this program. Under the light of ge-omechanics model test and energy budget method. the authors probe into the stress, displacement variation pattern,the mechanism of buckling failure and the appraising method of buckling stability of high stratified rock slope which commonly occurs in the construction site. The influence of the changes of the dip angle, length and rock stratum thickness of the slope on the buckling failure of high stratified rock slope was investigated in detail.
出处
《四川水力发电》
1993年第1期29-35,共7页
Sichuan Hydropower
关键词
层状岩体
高边坡
溃屈失稳
试验
high stratified rock slope,buckling failure,method of limit equilibium,finite element method, model test.
