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该文结合西南某大面积山区填方工程,通过对其边坡损毁、孔洞展布和排水系统损坏特征等方面的调查、试验和系统分析,得出了上述高填方体出现变形和破坏的主要原因是地下水渗透破坏、高地下水压力、地表水入渗潜蚀、冻融和降水冲刷共同作用结果,并提出了局部换填、孔洞和塌陷及时封堵等应急处治措施和截排水沟、填方体顶面覆盖粘性土层、换填或打仰斜排水孔引排地下水等永久性处理措施,取得了较好的效果。
In this paper, a large area of mountainous area filling project in Southwest China was investigated. Based on the investigation, experiment and systematic analysis of the damage of the slope, the distribution of the hole and the damage characteristics of the drainage system, the deformation and failure of the high-filled body The main reasons are groundwater infiltration and destruction, groundwater pressure, surface water infiltration erosion, freeze-thaw and precipitation scouring and the combined action results. Some local emergency measures such as partial replacement, hole and collapse timely closure and cutoff ditches are also proposed The top of the square covered with cohesive soil, replaced or hit oblique drainage holes drainage of groundwater and other permanent treatment measures, and achieved good results.