浅析超高加筋挡土墙的质量控制要点

Quality Control Points of Super High Reinforced Retaining Wall

本文依托于大连市新监管场所建设项目,对超高加筋挡土墙的质量控制要点进行了简要说明。根据本项目的地质特征,全风化页岩或土质厚度小于4m的,通过开挖后加筋土到底;对于地基土质为粉质粘土或次生红黏土厚度大于4m的,采用CFG桩复合地基处理;对于高度18m的超高挡土墙,采用三阶分级加预制模块设计,并根据不同高度的挡土墙采用不同拉伸强度的土工格栅,对于施工阶段的质量控制要点进行了简要说明。

Based on the construction project of new supervision site in Dalian,this paper briefly explains the key points of quality control of ultra-high reinforced retaining wall.According to the geological characteristics of the project,if the thickness of completely weathered shale or soil is less than 4m,the reinforced soil shall be excavated to the bottom;if the foundation soil is silty clay or secondary red clay with a thickness of more than 4m,CFG pile composite foundation shall be used;for the ultra-high retaining wall with a height of 18m,the three-step graded and prefabricated module design is adopted,and geogrids with different tensile strength are adopted according to the retaining walls with different heights.The key points of quality control in the construction stage are briefly described.