重庆建筑
重慶建築
중경건축
CHONGQING ARCHITECTURE
2013年
3期
14-17
,共4页
有限元强度折减法%软弱结构面%边坡%安全系数
有限元彊度摺減法%軟弱結構麵%邊坡%安全繫數
유한원강도절감법%연약결구면%변파%안전계수
strength reduction method%weak structural plane%slope%safety factor
结合重庆公馆边坡治理工程的实例,考虑软弱结构面采用无厚度接触面单元模拟,通过强度折减法利用有限元ANSYS对边坡在三种工况下的稳定安全系数进行三维模拟分析,两种工况下的稳定安全系数与理论计算结果大致相同.并利用有限差分FLAC3D强度折减法进行验证,结果相吻合.证实了有限元强度折减法计算三维边坡稳定安全系数用于工程的可行性,对类似工程有借鉴作用.
結閤重慶公館邊坡治理工程的實例,攷慮軟弱結構麵採用無厚度接觸麵單元模擬,通過彊度摺減法利用有限元ANSYS對邊坡在三種工況下的穩定安全繫數進行三維模擬分析,兩種工況下的穩定安全繫數與理論計算結果大緻相同.併利用有限差分FLAC3D彊度摺減法進行驗證,結果相吻閤.證實瞭有限元彊度摺減法計算三維邊坡穩定安全繫數用于工程的可行性,對類似工程有藉鑒作用.
결합중경공관변파치리공정적실례,고필연약결구면채용무후도접촉면단원모의,통과강도절감법이용유한원ANSYS대변파재삼충공황하적은정안전계수진행삼유모의분석,량충공황하적은정안전계수여이론계산결과대치상동.병이용유한차분FLAC3D강도절감법진행험증,결과상문합.증실료유한원강도절감법계산삼유변파은정안전계수용우공정적가행성,대유사공정유차감작용.
Based on the practical cases of mansion slope treatment in Chongqing, unit simulation of interface element with zero-thickness is adopted as the weak structure surface and the safety factors of slope under three construction conditions are three-dimensionally simulated and analyzed with strength reduction method and finite element ANSYS. The safety factors of slope under two construction conditions are almost the same as those gained from theoretical calculation and equal the results from finite difference FLAC3D of strength reduction method. Thus, it affirms the feasibility of strength reduction method, with which to calculate the safety factor in project. It can also offer some references for similar project.
