This article considers that the construction space of a deep foundation pit in a foreign office building is narrow,and it is very close to the surrounding existing roads and rivers,which does not have the conditions for natural slope support.Based on the characteristics of foundation excavation and engineering geological conditions,through demonstration and feasibility research,combined with the advantages of soil nail wall support itself,the plan of using soil nail wall support for the slope with the maximum excavation depth is determined.By analyzing the test data of soil samples and selecting the parameters,the article designs the length of soil nails of this project with the help of soil nail wall design software,and supports the deep foundation pit slope of this project according to the structural requirements and the construction technology requirements of the soil nail wall structure.
关键词
深基坑/施工/土钉墙/支护/稳定性
Key words
deep foundation pit/construction/soil nail wall/support/stability