为了提高公路抗震减灾的能力和保证震后生命线的畅通,本文介绍了绵茂公路绵远河流域气象、水文及震后河床变化情况,重点进行了震后山区河道演变分析、河床演变预测以及对公路建设的影响等方面的研究,并对相关河段进行了河床演变分析及最大淤高计算,提出了综合治理的具体意见和措施,进一步确保了绵茂公路的建设及营运安全。 In order to improve the capacity of highway earthquake disaster reduction and to ensure the smooth flow of the lifeline after the earthquake, this paper introduces the meteorological and hydrological changes of the Mianyuan River on the Mianmao Highway and the riverbed changes after the earthquake. It mainly focuses on the analysis of river evolution in the mountainous area after the earthquake, Road construction and other aspects of the study, and the river reaches the river bed evolution analysis and the maximum height calculation, put forward specific advice and measures for comprehensive management to further ensure the Mau Mau highway construction and operational safety.