[1]胡坤,李龙伟,车爱伟,等.孟加拉国PADMA水厂取水工程设计[J].中国给水排水,2022,38(2):73-78.
　HU Kun,LI Long?wei,CHE Ai?wei,et al.Design of Water Intake Project for PADMA Water Plant in Bangladesh[J].China Water & Wastewater,2022,38(2):73-78.
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孟加拉国PADMA水厂取水工程设计

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第2期 页码: 73-78 栏目: 出版日期: 2022-01-17
Title:
Design of Water Intake Project for PADMA Water Plant in Bangladesh
作者:
胡坤1， 李龙伟1， 车爱伟1， 巨志剑1， 白凯国1， 唐翀鹏2
（1.中国市政工程西北设计研究院有限公司，甘肃 兰州 730000；2.中工国际股份有限公司，北京 100000）
Author(s):
HU Kun1， LI Long?wei1， CHE Ai?wei1， JU Zhi?jian1， BAI Kai?guo1， TANG Chong?peng2
（1. CSCEC AECOM Consultants Co. Ltd.， Lanzhou 730000， China； 2. China CAMC Engineering Co. Ltd.， Beijing 100000， China）
关键词:
孟加拉国;  游荡性河道;  取水工程;  模型试验;  Y型渠道
Keywords:
Bangladesh;  wandering river;  water intake project;  model simulation;  Y?shaped open channel
摘要:
孟加拉PADMA水厂取水工程设计取水规模47.25×104 m3/d，工程前期对多条河流进行多维度比选，最终确定Padma河为理想的水源。该河道属于游荡性河道，存在雨季含沙量大（最大值为2.43 kg/m3）、河床冲刷淤积严重等问题。针对Padma河游荡性河道的特点，通过分析近40年的Padma河航道变迁图确定合理的取水点位置，并通过模型试验优化取水渠道为Y型明渠，且采用对水体扰动最小的耙吸式挖泥船解决明渠淤积的风险。护岸采用坡式护岸，上部采用混凝土块护砌，护脚采用抛石的做法防止河道浪蚀和水流冲刷。取水泵房内设置叠梁闸、格栅、重锤式液控阀等设施，阻挡雨季高水位运行工况下明渠底部的泥沙进入取水泵房，以达到分层、安全、高效取水的目的。取水工程建成至今运行良好，验证了该工程的安全可靠性。
Abstract:
The design scale of PADMA Water Plant water intake project in Bangladesh is 47.25 × 104 m3/d. In the early stage of the project, Padma River was selected as the ideal water source by multi?dimensional comparison. The river is a wandering river channel and is characterized by high sediment concentration (the maximum value is 2.43 kg/m3) in rainy season and serious erosion and silting of the riverbed. According to the characteristics of the Padma River, reasonable water intake points were determined by analyzing the channel change map of the Padma River in the past nearly 40 years, and the water intake channel was optimized to be a Y?shaped open channel through model simulation. In addition, a trailing suction dredger with minimum disturbance to water body was applied to solve the risk of open channel silt. Slope revetment was selected in the project, its upper part was protected by concrete block, and riprap was adopted by the foot revetment to prevent wave erosion and current erosion. The water intake pump room was equipped with a stoplog gate, a grid, a heavy hammer hydraulic control valve and other facilities to prevent the sediment at the bottom of the open channel entering the water intake pump room under the operating condition of high water level in the rainy season, so as to achieve the purpose of layered, safe and efficient water intake. The water intake project has hitherto run well, which verifies the safety and reliability of the project.

相似文献/References:

[1]车爱伟,胡坤,李龙伟,等.孟加拉国大型供水工程设计实例[J].中国给水排水,2020,36(16):74.
　CHE Ai-wei,HU Kun,LI Long-wei,et al.Design Case of Large-scale Water Supply Project in Bangladesh[J].China Water & Wastewater,2020,36(2):74.

更新日期/Last Update: 2022-01-17