尼洋河堤防工程护脚结构选择分析

Analysis of the Selection of the Pin Structure of the Niyang River Embankment Engineering

林芝市地处青藏高原,是藏东南旅游和经济重镇。近年来随着经济迅速发展,对城区河段防洪提出了更高的要求。尼洋河具有明显的游荡特征,河道主流频繁发生摆动,水流迅猛,对河岸及防洪堤护脚淘刷作用强烈,威胁堤防结构安全。该文针对尼洋河水流特点,通过不同方案的堤防护脚结构和加固措施进行比较,可为其他类似山区河流防护工程设计借鉴。

Nyingchi City is located on the Qinghai-Tibet Plateau and an important tourism and economic center in southeastern Tibet.In recent years,with the rapid economic development,higher requirements have been put forward for flood control in urban river sections.The Niyang River has obvious wandering characteristics.The mainstream of the river swings frequently,and the water flow is fast and violent,which has a strong effect on the river bank and the foot protection of the flood control embankment,threatening the safety of the embankment structure.In this paper,according to the characteristics of the Niyang River flow,different schemes of the dike protection foot structure and reinforcement measures are proposed for comparison,which can provide a certain reference value for the design of other similar mountain river protection projects in the future.