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摘要: 与传统极限平衡法相比,强度折减法有众多优势。计算程序和屈服准则是影响强度折减求安全系数的重要因素。以某复杂边坡为例,通过ANSYS-ADINA和ANSYS-FLAC接口程序,建立ADINA、ANSYS、FLAC同套网格模型,克服网格对安全系数的影响。计算中分别选用M-C和D-P准则,分析得出:相对于D-P准则,M-C准则求得的安全系数偏于保守;对于一系列的D-P准则,外角点外接圆D-P和内切圆D-P求得的安全系数分别对应上限和下限;对于同种屈服准则,有限差分法比有限元法求得的安全系数略大。
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关键词:
- 强度折减 /
- ADINA /
- ANSYS /
- FLAC /
- Mohr-Coulumb /
- Drucker-Prager
Abstract: Compared with the traditional limit equilibrium,the strength reduction method has many advantages. The computational procedures and the yield guidelines are important factors that affecting safety factor through strength reduction. Taking a certain complex slope for an example,through ANSYS-ADINA and ANSYS-FLAC interface program,a mesh model of ADINA,ANSYS and FLAC is established to overcome the grid coefficient on the safety factor. M-C and D-P criteria are respectively selected in the calculat...-
Key words:
- Strength reduction /
- ADINA /
- ANSYS /
- FLAC /
- Mohr-Coulumb /
- Drucker-Prager
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