基于极限状态筋材内力分布的加筋土挡墙稳定性分析与设计优化

doi:10.16046/j.cnki.issn2096-5680.2020.03.001

河北水利电力学院学报 ›› 2020, Vol. 30 ›› Issue (3): 1-8.DOI: 10.16046/j.cnki.issn2096-5680.2020.03.001

• 技术理论与应用 • 下一篇

基于极限状态筋材内力分布的加筋土挡墙稳定性分析与设计优化

张飞¹，朱玉明¹，高柏松²，李聪林³，徐惠民⁴，王晓飞⁵，高玉峰¹

1.河海大学土木与交通学院，江苏省南京市西康路1号 210098;
2.中铁二院工程集团有限责任公司，四川省成都市通锦路3号 610031;
3.中铁二院昆明勘察设计研究院有限责任公司，云南省昆明市春城路 650200;
4.南京市水利规划设计院股份有限公司，江苏省南京市红花村路136号 210022;
5.安徽省交通规划设计研究总院股份有限公司，安徽省合肥市高新区香樟大道180号 230088

收稿日期:2020-04-03 出版日期:2020-09-30 发布日期:2020-10-30
通讯作者: 高玉峰(1966-)，男，安徽滁州人，博士，教育部长江学者奖励计划特聘教授，主要从事岩土地震工程研究｡E-mail:yfgao66@163.com
作者简介:张飞(1985-)，男，江苏南京人，博士，副教授，主要从事岩土工程研究｡E-mail:feizhang@hhu.edu.cn
基金资助:
国家自然科学基金资助项目(51878248)

Stability Analysis and Design Optimization of GRS Walls Based on Distribution of Reinforcement Load in Limit State

ZHANG Fei ¹，ZHU Yu-ming¹，GAO Bai-song²，LI Cong-lin³，XU Hui-min⁴，WANG Xiao-fei ⁵，GAO Yu-feng¹

1.Hohai University，210098，Nanjing，Jiangsu，China;
2.China Railway Eryuan Engineering Group CO.，LTD.，610031，Chengdu，Sichuang，China;
3.Kunming Survey，Design and Research Institute CO.，LTD.of CREEC，650200，Kunming，Yunnan，China;
4.Nanjing Water Planning and Designing Institute Corp.Ltd.，210022，Nanjing，Jiangsu，China;
5.Anhui Transport Consulting & Design Institute Co.，Ltd.，230088，Hefei，Anhui，China

Received:2020-04-03 Online:2020-09-30 Published:2020-10-30

摘要/Abstract

摘要： 土工合成材料加筋土挡墙由于其诸多优势被广泛应用于实际工程中。现有规范中设计方法多采用传统的主动土压力理论,经大量实测分析发现这种设计方法过于保守地估计筋材内力。文中基于库仑直线破坏模式开展加筋土挡墙稳定性极限平衡分析,逐层计算获得极限状态下筋材内力分布与墙面水平位移量。运用该方法对某电厂扩建项目的加筋土挡墙设计方案进行稳定性分析,基于筋材内力分布进行设计优化,在保证内部和外部稳定性前提下实现了筋材长度减少10%,同时使得墙面侧向变形也减小约5%。基于极限状态筋材内力分布的加筋土挡墙稳定性设计方法还可以推广应用于其他复杂情况,指导安全设计与控制。

关键词: 加筋土, 挡墙, 极限状态, 筋材内力, 优化设计

Abstract: Geosynthetic-reinforced soil(GRS)wall is widely used in engineering because of its many advantages.The traditional active earth pressure theory is often used in the existing code design method.Through a large number of actual measurements and analysis，it is found that this design method is too conservative to estimate the internal force of reinforcement.The limit equilibrium analysis of the stability of the GRS wall is carried out based on the plane failure mode，and the load distributions for each reinforcement and the horizontal displacement of the GRS wall in the limit state are calculated layer by layer.Stability analysis of a GRS wall design scheme for a power plant expansion project is made through the method mentioned above.Based on the load distributions for reinforcement，the design is optimized.Under the premise of ensuring the internal and external stability，the length of the reinforcement is reduced by 10%，and the lateral displacement of the wall is reduced by 5%.The stability design method of the GRS wall based on the load distributions for reinforcement in the limit state can also be applied to other complex situations to guide the safety design and control.

Key words: reinforced soil, retaining wall, limit state, internal force, optimal design

中图分类号:

TU476.4

张飞, 朱玉明, 高柏松, 李聪林, 徐惠民, 王晓飞, 高玉峰. 基于极限状态筋材内力分布的加筋土挡墙稳定性分析与设计优化[J]. 河北水利电力学院学报, 2020, 30(3): 1-8.

ZHANG Fei, ZHU Yu-ming, GAO Bai-song, LI Cong-lin, XU Hui-min, WANG Xiao-fei , GAO Yu-feng. Stability Analysis and Design Optimization of GRS Walls Based on Distribution of Reinforcement Load in Limit State[J]. Journal of Hebei University of Water Resources and Electric Engineering, 2020, 30(3): 1-8.

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基于极限状态筋材内力分布的加筋土挡墙稳定性分析与设计优化

Stability Analysis and Design Optimization of GRS Walls Based on Distribution of Reinforcement Load in Limit State

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