山区河流两峡间宽谷河段航道整治研究

山区河流两峡之间的宽谷河段受水流进出上下游峡谷以及航道弯曲、两岸及河床极其不规则的影响,往往形成连续的长河段滩险群。为了改善嘉陵江温塘峡至观音峡之间的宽谷河段通航条件,分析了两峡之间宽谷河段的滩险特性、碍航原因。按照Ⅲ级航道标准,根据实测资料研究了航道整治方案,采用数值模拟方法模拟验证了整治工程效果,结果表明,采取整治措施后,各项指标均达到了Ⅲ级航道标准的要求。总结了山区河流两峡之间宽谷河段的航道整治规律。

Research on waterway regulation of strath river channel between two gorges of Jialing River

Criss-crossed rolling mountains and rivers often form gorge river channels and a wide valley river channel between two gorges. Under the influence of flows of upperstream and downstream gorges, mountainous meander river channel and irregular river banks and river bed, the wide valley river channel is often distributed with continuous, long-distance covered?dangerous shoal. Aiming at a wide valley river channel between Wentang Gorge and Guanyin Gorge of the Jialing River, the properties of shoals and causes of navigation hindering problems were analyzed. Based on the measured data, the waterway regulation project was studied. Numerical modeling was adopted to demonstrate the project effect and the general rules regarding waterway regulation of the strath river channel were summarized.