摘要
当前,若想从源头上有效提高路桥项目的建设质量,建成安全、顺畅的交通运输路网,便应当做好软基的处理工作.本文首先分析了软土地基的特点及危害,探讨了路桥工程中软土地基施工过程中存在的问题,再结合实际案例,介绍了表层排水技术、砂垫层、粉喷桩加固处理技术、预压砂井法、振动水冲法、CFG桩长螺旋成孔技术、爆夯法软土地基处理技术、双向搅拌桩技术等路桥软基施工新技术.
Abstract
At present,in order to effectively improve the construction quality of road and bridge projects from the source and build a safe and smooth transportation network,it is necessary to perform well in the treatment of soft foundation.This paper first analyzes the characteristics and hazards of soft soil foundation,discusses the existing problems in the construction process of soft soil foundation in road and bridge projects,and then combines the actual case to introduce the surface drainage technology,sand mat,powder jetting pile reinforcement technology,pre-pressed sand well method,vibrating water flushing method,CFG pile long spiral hole forming technology,explosive compaction soft soil foundation treatment technology,two-way mixing pile technology and other new technologies of road and bridge soft foundation construction.
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