衡重式与扶壁式挡土墙稳定性对比分析  

Comparative Analysis on Stability of Counterweight and Buttressed Retaining Walls

作　　者：陈彦刚 CHEN Yan-gang(Kunming Zhekai Engineering Technology Co.,Ltd.,Kunming 650500,China)

机构地区：[1]昆明喆凯工程技术有限公司,昆明650500

出　　处：《价值工程》2022年第17期50-52,共3页Value Engineering

摘　　要：为了探究衡重式挡土墙和扶壁式挡土墙的优缺点,本文通过对某公路一处挡土墙的改造设计,分析了造成原设计挡土墙倾覆的原因,并结合项目情况,选择拆除现有衡重式挡土墙,更换成扶壁式挡土墙,通过对比两种类型挡土墙的计算结果,分析得出衡重式挡土墙和扶壁式挡土墙的优缺点,并针对此类情况指出现阶段挡土墙的设计缺陷。结果表明,在地基承载力偏小的情况下,扶壁式挡土墙的抗滑稳定性和倾覆稳定性均优于衡重式挡土墙,且局部压应力也更小。因此,在今后的设计中,若方案拟定为衡重式挡土墙,则因重点核对其地基承载力是否足够,如若不够,可适当考虑是否拟用扶壁式挡墙作为备选方案。In order to explore the advantages and disadvantages of counterweight retaining wall and buttress retaining wall,this paper analyzes the reasons for the overturning of the originally designed retaining wall through the reconstruction design of a retaining wall on a highway,and combines the project In some cases,choose to demolish the existing counterweight retaining wall and replace it with a buttress retaining wall.By comparing the calculation results of the two types of retaining walls,the counterweight retaining wall and the buttress retaining wall are analyzed and obtained.The advantages and disadvantages,and pointed out the design defects of the existing retaining wall for such cases.The results show that the anti-sliding stability and overturning stability of the buttressed retaining wall are better than those of the counterweight retaining wall,and the local compressive stress is also smaller when the bearing capacity of the foundation is small.Therefore,in the future design,if the plan is to be a counterweight retaining wall,it is necessary to check whether the bearing capacity of the foundation is sufficient.

关 键 词：衡重式挡土墙 扶壁式挡土墙 土压力 

分 类 号：TU476.4[建筑科学—结构工程]