长江中游湖广—罗湖洲河段航道整治工程初步效果及加固措施

Effect and reinforcement measures of Huguang-Luohuzhou river waterway regulation engineering on the middle reach of Yangtze River

通过对比分析长江中游湖广—罗湖洲河段航道整治工程实施前后河道变化特点以及工程实施不同阶段的工程区变形特征,探讨了河道变形原因及工程区变化趋势,明确了维护加固对象及工程措施。研究表明,工程初步抑制了赵家矶边滩、西河铺高滩等航道边界的不利变化趋势,维持了已建工程的稳定;工程实施以来航道条件较好,整治建筑物总体保持稳定,但人民洲2#护滩带工程头部出现了整体塌陷,宜采用抛枕和抛石的方式进行维护加固。

Comparing the fiver changes before ＆ after engineering implementation and the engineering area deformation during different stages of Huhuang-Luohuzhou river waterway regulation engineering on the middle reach of Yangtze River, this paper explores the reason of riverbed deformation and trends of the engineering areas, and determines the object and measure of engineering reinforcement. The engineering preliminary inhibits channel borders＇ adverse change, like Zhaojiaji sidebar, Xihepu flood land, etc., and maintains the stability of the existing engineering. Since implementation of the engineering, the channel condition turned good and regulation structures remain stable, but the head of the second beach protection belt on the Renminzhou sidebar appeared an overall collapse, which should be reinforced by throwing pillows and stones.