摘要
为合理控制深圳市观澜河长截流箱涵运行期的泥沙淤积,基于现场调查和工程运行调度资料分析,开展原型淤积物组分筛分试验和分析,了解箱涵内泥沙淤积时空分布规律和淤积成因。建立观澜河长截流箱涵局部物理模型,通过河工动床冲刷试验,论证旱季“分段蓄水、接力冲淤”的分段冲淤和大雨季“分段控制、集中冲淤”的全线冲淤可行性,从工程改造、运行管理等方面提出防淤减淤对策。研究成果可为类似工程的设计优化改造和运行管理提供参考。
In order to control sedimentation during the operation of long closure box culvert of Guanlan River in Shenzhen,prototype sediment component screening test and analysis were conducted to understand its temporal and spatial distribution pattern and causes,based on field investigation and evaluation of operation data.Local physical model of long closure box culvert of the Guanlan River was established based on river movable bed scouring test,as well as feasibility studies on"sectional water storage,relay scouring and silting"in dry season and"sectional control,centralized scouring and silting"in rainy season.Measures are proposed to reduce siltation such as rehabilitation and improvement of operation management,which may provide reference for optimization of design and operational management of similar projects.
作者
郑政
涂向阳
Zheng Zheng;Tu Xiangyang
出处
《中国水利》
2021年第5期46-49,共4页
China Water Resources
基金
深圳市水务局2013年度水务发展专项资金科技创新重大专题“长截流箱涵泥沙淤积研究”课题。
关键词
观澜河
长截流箱涵
泥沙淤积规律
防淤减淤
物理模型
对策研究
the Guanlan River
long closure box culvert
law of sedimentation
siltation prevention and reduction
physical model
measure studies
