海南五指山崩塌边坡挡土墙治理的设计研究

在针对黏性土主动土压力库伦解的方法中,应用最广泛的有多边形图解法、等效内摩擦角法、Arnold Verruijt计算法。为对海南五指山崩塌高填方路堤边坡采用挡土墙治理,基于Arnold Verruijt计算法提出一种简化计算破裂角的方法。并用三种计算方法验算挡土墙的土压力、滑动稳定性以及倾覆稳定性。为保证工程的安全与经济,最终三者稳定性安全系数最小值均满足规范要求,因此,挡土墙满足安全要求。

Study on Design of Retaining Wall Treatment for Collapsed Slope at Wuzhishan Mountain,Hainan

In the Coulomb’s solution to active earth pressure of cohesive soil,polygon graphical method,angle of equivalent internal friction,and Arnold Verruijt calculation method were used.This paper,for the purpose of handling the collapsed high fill embankment slope at Wuzhishan Mountain,Hainan by retaining wall,proposed a simplified method for calculation of rupture angle based on Arnold Verruijt calculation method then used three methods calculating the retaining wall’s earth pressure,sliding stability and overturning stability.The results show that the minimum value of stability safety factor from each method is in accordance with the specification,and the retaining wall have the security as required,thus ensuring the engineering safety and economy.