“软基”是土基施工中的一种常见现象。它主要是因为土质的含水量过大形成的。这种土质的特点是含水量大,抗剪强度低,承载能力低。在这种状态下,土的密实度无法达到最佳状态,处理不彻底会造成路基强度不够,使路基产生压缩沉降、滑陷、坍塌等局部或整体剪切破坏,从而严重影响道路工程质量。因此,路基填筑的质量优劣,特别是“软基”处理的是否彻 “Soft foundation ” is a common phenomenon in the construction of earth-based foundation. It is mainly due to the formation of excessive soil moisture content. This soil is characterized by large water content, low shear strength, low carrying capacity. In this state, the soil compactness can not reach the best condition. If the treatment is not complete, the subgrade will not be strong enough to cause partial or complete shear failure such as compression settlement, slippage and collapse of the roadbed, which will seriously affect the quality of the road works. Therefore, the quality of roadbed filling pros and cons, especially “soft base ” processing is complete