论文部分内容阅读
修筑公路和城市道路时,在下述一些地段分布的粘性土的天然含水量往往大于塑限:水文地质不良路段,地下水位浅,土体处于毛细饱水状态;农田灌溉发达地区,特别是菜田和稻田,土体经常处于饱和状态;在夏、秋季节以及某些地区的春季,为持续降雨季节,受降雨影响,土的湿度增大;在季节性冰冻地区,经过冰冻作用,春季时期土的含水量高。
In the construction of roads and urban roads, the natural water content of cohesive soils distributed in some of the following sections is often greater than the plastic limit: poor hydrogeological sections, shallow groundwater, saturated capillary water; the well-developed areas, especially the vegetable fields And paddy fields, the soil is often saturated. In the summer and autumn seasons and spring in some areas, it is the continuous rainfall season, and the humidity of the soil is increased due to the rainfall. In the seasonal frozen area, after the freezing effect, the spring soil High water content.