道路路基承受着路面传递的交通荷载,是道路结构的基础部分,必须具有足够的强度和稳定性才能保证路面的正常使用。因此,对于承载力比较低的软土地基必须采取适当措施达到设计对路基承载力的要求。在城市新建、改建和扩建道路过程中,经常会遇到软土地基,软土是指滨海、湖沼、谷地、河滩沉积的天然含水量高、孔隙比大、压 Road embankment to bear the traffic load transmitted by the road, is the foundation of the road structure, must have sufficient strength and stability in order to ensure the normal use of the road. Therefore, for soft ground with low bearing capacity, appropriate measures must be taken to meet the design requirements of subgrade bearing capacity. In urban new construction, reconstruction and expansion of the road in the process, often encounter soft ground, soft soil refers to the coastal waters, lakes, valleys, floodplain deposition of high natural water content, pore ratio, pressure