土工织物加固堤防非线性有限元分析  

Nonlinear finite element analysis of reinforced dike with geotextile

作　　者：刘汉龙[1] 吴维军[1] 高玉峰[1] 

机构地区：[1]河海大学岩土工程研究所,南京210098

出　　处：《岩土力学》2003年第1期79-82,87,共5页Rock and Soil Mechanics

摘　　要：在进行堤防加筋设计时,土工织物的强度,加筋的长度,加筋的位置,加筋的层数等因素都是应该考虑的。利用欧洲通用的岩土工程有限元软件Plaxis,采用强度参数降低法,对某一堤防加筋的效果、机理作了分析。指出无论在任何位置加筋,土工织物都有一个最小长度。最小长度的确定,要具体问题具体分析。确定了加筋的最佳位置,并建议加两层,一层在底部,一层在中部,以抑制最危险滑弧的发展,提高整体稳定性,减少堤防变形发展。The strength, length, location in dike and layers of geotextile etc. have to be taken into accounted during the reinforcement design of dike. A finite element method with strength parameters reduction technique is introduced. By employing the Plaxis code, the geotextile reinforcement analysis for a dike is conducted; and the length of the geotextile reinforcement and the location of the geotextile reinforcement design are discussed. A suggested design method is given.

关 键 词：土工织物 堤防 PLAXIS程序 强度参数降低法 弧长控制法 有限元法 

分 类 号：TV87[水利工程—水利水电工程]