黄土地区地铁车站明挖深基坑综合施工技术

Comprehensive Construction Technology for Open Cut Deep Foundation Pit for Metro Station in the Loess Area

结合工程实践,介绍了黄土地区某地铁车站明挖深基坑及其支护工程的设计方案。从环境保护、钻孔灌注桩施工、高压旋喷桩施工、支撑施工、基坑降水及开挖等几个方面阐述了黄土地区明挖深基坑相关施工技术、施工工艺及控制要点,并对作为信息化施工监测的重点与实施进行了详细介绍。实践证明,该基坑支护工程的施工技术是合理的、有效的。

With the engineering practice, this paper introduces an opencut deep foundation pit of metro station in loess area and its design scheme of supporting engineering. This article, from the view of environmental protection, bored pile construction, high pressure jet grouting pile construction, supporting construction, foundation pit dewatering and excavation and other aspects, elaborated the construction technology, construction process, key points of controlling and the implementation of information technology in construction monitoring in detail. The foundation pit construction technology is proved to be reasonable and effective in practice.