Silting reduction system for heavily silt-carrying river reservoir

Abstract

The invention relates to general hydraulic engineering, in particular to a silting reduction system for a heavily silt-carrying river reservoir. The IPC numbers are E02B1/00 and E02B9/02. According to the system, a silt-blocking submerged dike is constructed in the reservoir, the reservoir is divided into a clean water reservoir area and a muddy water reservoir area, a silt conveying culvert is utilized for efficiently draining silt-carrying flow in the distance of the upstream of the dike out of the reservoir, the aims of water storage and silt discharging are achieved at the same time, and the rainfall washing distance of the reservoir is enlarged; fine-particle silt turned and overflowed to the area, in front of the dike, of the reservoir through the silt-blocking submerged dike is discharged out of the reservoir through a dike tunnel spillway in a submerged silt pump reservoir desilting mode; according to a wide, shallow and bent silting form occurring on a reservoir area riverway, a reservoir area straight river channel facilitating density flow transport is built in a submerged silt pump dredging mode, and the natural desilting effect of the reservoir is improved. The system is applicable to heavily silt-carrying river reservoir construction and silting waste reservoir reconstructed projects.

Description

Technical field: [0001] The invention relates to a general water conservancy project, in particular to a project for reducing silt in sandy river reservoirs. Its IPC international patent classification numbers E02B1 / 00 and E02B9 / 02 belong to the field of water conservancy. Background technique: [0002] With the development of economy and society, human beings have more and more demands on the development and utilization of rivers, and more and more water conservancy projects are built on rivers. In particular, a considerable number of reservoirs in sandy rivers have lost their normal water storage function due to severe sedimentation. The dams and their ancillary buildings built for water storage and profit also lost their functions, resulting in a shortage of resources. Serious waste; at the same time, with the endless development of rivers by human beings, there are fewer and fewer dam sites suitable for building reservoirs on rivers, which are far from meeting the requir...

AI Technical Summary

Problems solved by technology

[0002] With the development of economy and society, human beings have more and more demands on the development and utilization of rivers, and more and more water conservancy projects are built on rivers. In particular, a considerable number of reservoirs in sandy rivers have lost their normal water storage function due to severe sedimentation. The dams and their ancillary buildings built for water storage and profit also lost their functions, resulting in a shortage of resources. Serious waste; at the same time, with the endless development of rivers by human beings, there are fewer and fewer dam sites suitable for building reservoirs on rivers, which are far from meeting the requirements of social development for the development and utilization of water resources, and further development and utilization of water resources are needed Support the sustainable development of the economy and society; on the other hand, with the strengthening of environmental protection and the improvement of people's living standards, soil and water conse

Images