河内地铁地质条件分析与地基处理技术

针对越南第1条轨道交通线路——河内轨道交通2号线,分析工程勘探场地、土地管理模式、语言、项目管理方式等对勘察工作的影响,总结与该工程相关的地层分布和土层的物理力学性质,计算桥桩的承载力,提出地基处理方案。结果表明:该工程勘察周期长、成本较高,其主要地层为软土,工程性质很差,大直径桩长需要45 m以上,大面积地基处理可采用塑料排水板联合真空预压、堆载预压和管桩等处理方法。

Geological conditions and ground treatment technology of Hanoi metro

The regional geological conditions I decided to Types, construction methods and cost of city rail traffic, it is the focus of urban planning and design. The geotechnical investigation of Hanoi the first metro line has important reference significance to Vietnam subway construction. Introduced their influence on the geotechnical exploration work that project exploration site, land management mode, language, and project management mode, et al. To summarized stratigraphic distribution of engineering and physico-mechanical properties of soil. To calculated the bearing capacity of pile, and compiled the plan of foundation treatment. The results show that, Geotechnical investigation period is very longs, and cost high. In Hanoi the main strata are soft soil, and engineering properties of soil is very poor, Large diameter pile length requires more than 45m, The foundation treatment of large area by plastic drainage plate combined with vacuum preloading and preloading surcharge of fill method or pipe-pile.