期刊论文

中文

湖南城市学院学报(自然科学版)

1672-7304

2009

18

2

1-4

10.3969/j.issn.1672-7304.2009.02.001

长沙理工大学公路工程省部共建重点实验室开放基金资助项目（kfj080109）；

本校为其他机构

现行《公路路基设计规范》对挡土墙抗倾覆稳定性的设计是假定土压力分布为线性分布下进行的，没有考虑墙背实际土压力的非线性分布较假定的线性分布合力作用点高度有所提高的影响．按现行规范计算出的抗倾覆稳定性系数大于实际值。档土墙抗倾覆稳定性设计达不到期望的安全储备．通过力学分析，导出了土压力非线性分布下舍力作用点高度的计算式和抗倾覆稳定系数的计算式，建立了档土墙抗倾覆稳定性设计的新方法．在与现行规范法对比的基础上，建议在工程实践中采用新方法对档土墙的抗倾覆稳定性设计进行复核，并在必要时进行调整．

Toppling stability design of retaining wall is based on that linear distribution of earth pressure is assumed in the current JTG D30-2004 specification for design on highway subgrades. It does not think over that synthetic function place height of no liner distribution of earth pressure is higher than the liner distribution of earth pressure for the back of retaining wall. Calculation value of toppling stability coefficient is larger than real value by the current specification. Design of toppling stability is not attained anticipatory value of secure store. The calculation formula of syntheti...