摘要
运用有限元软件ABAQUS建立了土工格室加筋土三轴试验模型,选取Mohr-Coulomb弹塑性模型,将应力应变曲线与等效强度和等效刚度计算结果进行对比,反演出土工格室加筋土的弹性模量、泊松比、剪胀角等参数。采用强度折减法计算素土边坡和土工格室挡墙的安全系数和滑动面,对比边坡加筋前后的变形。
The finite element software ABAQUS is used to establish a triaxial test model of geocell reinforced soil.The Mohr-Coulomb model is selected as the elastoplastic model,and then compare the stress-strain curve and the calculation results of equivalent strength and equivalent stiffness.The soil parameters of geocell reinforced soil such as elastic modulus,Poisson's ratio and dilatancy angle are inverted.The strength reduction method was used to calculate the safety factor and sliding surface of the plain soil slope and the geocell retaining wall,the deformation of slope before and after reinforcement is compared.
作者
陈旺盛
宋飞
刘杰
张曼
CHEN Wangsheng;SONG Fei;LIU Jie;ZHANG Man(School of Highway Engineering,Chang'an University,Xi'an 710064,China;Transportation Planning Surveying and Design Institute of the Xinjiang Uygur Autonomous Region,Urumqi 830006,China;Lanzhou Deke Engineering Materials Co.,Ltd.,Lanzhou 730000,China)
出处
《路基工程》
2022年第1期14-17,共4页
Subgrade Engineering
基金
陕西省自然科学基金(2019JM-100)
长江水利委员会长江科学院开放研究基金资助项目(CKWV2019743/KY)。
关键词
土工格室加筋土
等效强度
等效刚度
有限元
三轴试验模型
强度折减法
geocell reinforced soil
equivalent strength
equivalent stiffness
finite element
triaxial test model
strength reduction method
