In the construction process of the long-strip deep foundation pit where the length is significantly greater than its width,earth excavation directly affects the stability and safety of the deep foundation pit,while earth transportation has a direct impact on excavation efficiency.Through the research on earth excavation and transportation in the construction of long-strip deep foundation pit for an under-construction station of a rail transit project,this article designs a method for earth excavation and transportation that includes:the stage of temporary access road for transportation,the stage of soil terrace for transportation,and the stage of gantry crane for transportation.It also provides a detailed analysis of the processes and characteristics of earth excavation and for transportation in each stage.In this method,the stage of temporary access road for transportation has the highest efficiency for earth excavation and transportation,which can accomplish 62.19%of the earth excavation and transportation,while the stage of soil terrace for transportation and the stage of gantry crane for transportation completes 22.45%and 15.36%of the earth excavation and transportation respectively.The research results of this paper can provide reference for earth excavation and transportation in other similar deep foundation pits.
关键词
长条状深基坑/土方开挖外运/基坑施工组织/基坑施工技术
Key words
long-strip deep foundation pit/earth excavation and transportation/organization of deep foundation pit/construction technology of deep foundation pit
维普
万方数据