不同土压力下悬扶壁式挡土墙抗倾覆稳定比较

Comparative Study on Anti-Overturning Stability for Overhanging Wall Bulkhead under Different Soil Pressures

对国内、国外两种不同土压力计算模式下悬扶壁式挡土墙的抗倾覆稳定性进行了分析。结果表明 ,在同一安全系数的水平下 ,我国规范采用库仑土压力计算悬扶壁式挡土墙的抗倾覆稳定安全度 ,比国外标准采用朗金土压力计算的安全度高 ,只有在墙后填土水平且无粘聚力时 。

The anti overturning stability of overhanging wall bulkhead has been analyzed under domestic and foreign different calculating modes of soil pressure. The result shows that at the same level of safety coefficient, the safety degree of anti overturning stability for overhanging wall bulkhead calculated with Chinese Code, which adopts Coulombs earth pressure, is higher than that of foreign standard with Rankines earth pressure adopted. Only when filling leveling behind wall and without cohesive force, is the safety degree of Chinese Code slightly low. [