广州设计之都基坑工程设计实例分析

摘要:

随着城市化水平的不断提高,在城市内开挖深基坑面临的外部环境越来越复杂,对基坑工程设计也提出了更高的要求,因此深基坑支护选型须根据工程实际因地制宜的选型及设计。该文结合广州岩溶地区复杂环境下某大尺寸深基坑工程实例,探讨了复杂环境下基坑围护结构的选型原则及设计要点；采用多种计算软件综合分析,并结合现场基坑监测结果进行印证,进一步检验了围护结构选型的合理性,为类似条件下的其他深基坑工程提供了一定的参考。

Abstract:

With the continuous improvement of the level of urbanization, the external environment faced by the excavation of deep foundation pits in cities is becoming more and more complex, and higher requirements are also put forward for the design of foundation pit engineering. Therefore, the selection of deep foundation pit supports must be based on the project practice and local conditions. Based on the example of a large-scale deep foundation pit project in the complex environment of Guangzhou karst area, this paper discusses the selection principles and design points of the foundation pit enclosure structure in the complex environment; comprehensive analysis is carried out by using a variety of calculation software, combined with on-site foundation pit monitoring results. The rationality of the selection of enclosure structure is further tested, which provides a certain reference for other deep foundation pit projects under similar conditions.