卢沟桥拦河闸脉冲泄水试验实施过程及水头演进分析

Implementation process and head evolution analysis of pulse discharge test at Lugou Bridge

2022年春季,永定河如期实现第二次全线通水,期间于卢沟桥拦河闸进行了2次大流量脉冲泄水试验。本次以卢沟桥下游各断面实测数据为基础,分析脉冲试验过流特点及现状河道过流能力,进一步检验流域防洪薄弱环节,摸清水流规律,为河道治理积累经验,加快恢复河湖水系生态连通。

In the spring of 2022, the Yongding River completed the second full-line water supply work as scheduled, during which two large-flow pulse discharge tests were carried out at the Lugou Bridge Barrage. Based on the measured data of the downstream section of the Lugou Bridge pulse test, the characteristics of the pulse test and the current river flow capacity were analyzed, and the weak links of flood control in the basin are further examined. This study accumulated valuable experience for river management and accelerated the restoration of ecological connectivity of rivers and lakes.