粘质粉土地区下水道的损坏及修复

粘质粉土和流沙粉土在一定动水条件下,容易产生流沙和管涌现象,流沙的产生,管涌的形成,大大降低了地基的承载能力;工程施工过程中如果对流沙地质不加以重视,将会对工程施工以及竣工后的工程实体形成很难遇见的隐患,流沙地质对工程基础的施工影响,是工程施工人员无法回避的问题.结合上海长风地块泸定路(云岭东路)下水道塌陷的工程实例,...

Damage and Repairing of Sewer in Clayey Silt Area

The clayey silt and the shifting sand silt are easy to cause the shifting sand and piping phenomenon under a certain hydrodynamic condition.The formation of shifting sand and piping will greatly reduce the carrying capacity of the subgrade.If the importance is not placed on the shifting sand geology in the course of engineering construction,it will form the difficultly handled hidden danger for the engineering projects under the construction and after the construction.The influence of shifting sand geology on theconstruction of engineering foundation is the problem hard to avoid for the engineering construction members.According to the engineering case of the sewer collapsing in Luding Road(Yunling Road East) of Changfeng Area in Shanghai,the article introduces the repairing construction technology.The relative experience can be referred for the professional members.