湿陷性黄土地区地下连续墙施工技术

On Construction Technology of Underground Diaphragm Wall in Collapsible Loess Area

结合浐河站地下连续墙施工实例,从工程概况、具体施工方案、劳动力设备配置、施工进度、质量保证措施等方面介绍了湿陷性黄土地区地下连续墙的施工技术。

Chanhe Station of Xi＇ an City Metro No. 1 is an underground three-layer islands station which is openly excava- ted. Due to the high underground water level, complicated geological conditions, and deep excavation depth of the founda- tion pit, its surrounding structure adopts underground diaphragm walls, which is the first attempt of subway station con- struction in collapsible loess area. This technique is complicated, of high difficulty, and a large amount of machinery input, and there is little recyclable experience in design and construction. Combined with underground continuous wall con- struction in Chanhe Station, this paper introduces the construction technology of underground diaphragm walls in the col- lapsible loess areas, from the aspects of general project situation, detailed construction plan, workforce and equipment allocation, construction progress, and quality insurance measures.