CAJ | 학술논문

采用有限元强度折减法，对南水北调工程某渠坡在仅考虑重力荷载作用下进行了三维有限元稳定性计算，讨论了衬砌、抗滑桩等抗滑措施对渠坡的增稳效果，对渠坡稳定计算中抗滑结构与土体之间有无接触进行了对比分析。结果表明：衬砌明显提高了渠坡的抗滑稳定性，而抗滑桩的增稳效果不明显，原因在于抗滑桩并没有阻断塑性贯通区；抗滑结构与土体土之间考虑接触后，渠坡稳定安全系数明显降低，塑性贯通区表现出明显的变化，接触分析可以较为真实地反映抗滑结构和周围土体之间的接触效应。
채용유한원강도절감법，대남수북조공정모거파재부고필중력하재작용하진행료삼유유한원은정성계산，토론료츤체、항활장등항활조시대거파적증은효과，대거파은정계산중항활결구여토체지간유무접촉진행료대비분석。결과표명：츤체명현제고료거파적항활은정성，이항활장적증은효과불명현，원인재우항활장병몰유조단소성관통구；항활결구여토체토지간고필접촉후，거파은정안전계수명현강저，소성관통구표현출명현적변화，접촉분석가이교위진실지반영항활결구화주위토체지간적접촉효응。
Strength reduction FEM is used to calculate the stability of 3D FEM of the canal slope in the South-to-North Water Diversion Proj ect.The stabilization effects of lining and anti-slide piles,etc.are discussed. At the same time,the comparison of contact and non-contact are made in this canal slope stability calculation. The results show that the anti-sliding stability of this canal slope is improved obviously by using lining than u-sing anti-slide piles,for the plastic penetration area is not blocked by the piles.Safety coefficient decreases obviously when taking contact effect between anti-sliding structures and the soil into consideration,plastic transfixion area changes evidently;and the contact effect of anti-sliding structure-soil can be truly reflected by the contact analysis.