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针对公路水毁问题 ,考虑到排水系统的影响因素 ,采用 Modflow软件进行模拟分析 ,详细介绍了半挖半填类路基模拟分析过程 ,通过不同方案对比分析了路基内部盲沟、渗沟以及坡体内排水孔的排水效果 ,模拟方案的设计起到了排水的效果 ,确保了路基处于干燥状态 ,为路基排水系统的设计和布置提供较好依据。并通过工程实例 ,验证模拟分析的可靠性 :重庆万县～梁平高速公路 B合同段 (K6+ 790～ K6+ 970 )地处唐家院子滑坡段 ,根据特殊地质条件设置横向、纵向盲沟 ,有效地排除地下水 ,起到保护路基和坡体的双重效果。为公路路基排水效果研究开辟了一条新思路
Aiming at the problem of highway water damage, taking into account the influencing factors of drainage system, using Modflow software to carry out simulation analysis, the semi-excavation and semi-filling subgrade analogue analysis process is introduced in detail. The blind subsidence channel, The drainage effect of the hole and the design of the simulation scheme play a drainage effect, ensuring that the roadbed is in a dry state and providing a good basis for the design and layout of the subgrade drainage system. Through the engineering example, the reliability of simulation analysis is validated. The contract section (K6 + 790 ~ K6 + 970) of B from Chongqing Wanxian to Liangping Expressway is located in the Yuankangzi landslide section of Tangjiagou. According to the special geological conditions, horizontal and vertical blind ditches are effectively Exclude groundwater and play a dual role in protecting subgrade and slope. It has opened up a new idea for the research on drainage effect of highway subgrade