水利科技与经济
水利科技與經濟
수리과기여경제
2012年
8期
30-32
,共3页
李佳雨桐%侍克斌%严新军
李佳雨桐%侍剋斌%嚴新軍
리가우동%시극빈%엄신군
有限元软件%Plaxis%坝坡稳定%强度折减
有限元軟件%Plaxis%壩坡穩定%彊度摺減
유한원연건%Plaxis%패파은정%강도절감
FE software%Plaxis%slope stability%strength reduction
通过Plaxis有限元软件,应用其提供的Phi—c折减方法,对坝坡的稳定性进行分析。当坝坡失稳破坏,有限元计算将不收敛,用这种判断方法得到此时的折减系数作为坝坡稳定安全系数,同时得到滑裂面位置及动态失稳模拟。对计算结果的精度做了对比,与Bishop法和有限元软件Abaqus计算结果相差为2%-3%,计算结果在两者之间,证实了其准确性和工程实用性。
通過Plaxis有限元軟件,應用其提供的Phi—c摺減方法,對壩坡的穩定性進行分析。噹壩坡失穩破壞,有限元計算將不收斂,用這種判斷方法得到此時的摺減繫數作為壩坡穩定安全繫數,同時得到滑裂麵位置及動態失穩模擬。對計算結果的精度做瞭對比,與Bishop法和有限元軟件Abaqus計算結果相差為2%-3%,計算結果在兩者之間,證實瞭其準確性和工程實用性。
통과Plaxis유한원연건,응용기제공적Phi—c절감방법,대패파적은정성진행분석。당패파실은파배,유한원계산장불수렴,용저충판단방법득도차시적절감계수작위패파은정안전계수,동시득도활렬면위치급동태실은모의。대계산결과적정도주료대비,여Bishop법화유한원연건Abaqus계산결과상차위2%-3%,계산결과재량자지간,증실료기준학성화공정실용성。
Based on Plaxis, this article analysed the stability of homogenousslop bu using the meth- od named Phi - c offered by Plaxis. Using the numerical non - convergence of the program as the fail-ure criteria to get the reduction fator at this moment as the safety factor of the slope. Simultaneously, we can watch the dynamic simulation of the instability and the position of the sliding surface. The re-suits of this article have compared with other results by using other method of Bishop and Abaqus. The difference between them are no more than 3%. According to this comparation, the method talked in this article is accurate "and practicable in engineering.