基于Plaxis的双排钢板桩结构土压力和排距优化设计  

Optimized Design of Earth Pressure and Row Distance of Double-row Steel Sheet Piles Based on Plaxis

作　　者：晏明 鹿群 郭少龙[1] 

机构地区：[1]天津城建大学土木工程学院,天津300384 [2]天津市软土特性与工程环境重点实验室,天津300384

出　　处：《防灾减灾工程学报》2017年第3期428-434,441,共8页Journal of Disaster Prevention and Mitigation Engineering

基　　金：中电建集团科技项目(SD2013-10);天津市应用基础与前沿技术研究重点项目(13JCZDJC35500)资助

摘　　要：双排钢板桩支护结构具有复杂的受力特性。首先,阐述了当前常用的几种双排桩结构的计算方法,简要分析了这些方法的优缺点。其次,通过与模型试验结果的对比,说明Plaxis软件的可靠性和参数选取的正确性。然后,结合对有限元模拟结果的分析,指出双排钢板桩结构存在较强的三维空间效应。最后,对比例系数法的土压力分布进行了一些优化,并提出了双排钢板桩排距的优化取值范围。该结论可为软土地区类似的工程提供有益的借鉴和参考。The double-row steel sheet piles support structure has complex mechanical characteristics.In this paper,some computing methods of the double-row piles are mentioned at first,and the advantages and disadvantages are analyzed.Then,compared with the model test,the correctness of plaxis and the parameter settings were illustrated.And with the analysis of the calculation result of the finite element,the strong three dimensional space effect in the double-row steel sheet piles is emphasized.At last,the earth pressure of the proportional coefficient method is corrected,and the optimized double-row steel sheet piles distance is proposed.The conclusions of this paper can be used as references of similar projects in soft soil area.

关 键 词：双排钢板桩 计算方法 三维空间效应 土压力 排距 

分 类 号：TU447[建筑科学—岩土工程]