Multi-stage telescopic type steel dam

Abstract

The invention relates to a multi-stage telescopic type steel dam, which is arranged on a riverway cross section. A foundation part is a concave concrete foundation which is positioned under a riverbed, a rectangular steel dam groove is formed in the middle part of the foundation part, the center of the bottom part of the steel dam groove is provided with a water injection opening, the steel dam part consists of a first-stage steel dam, a second-stage steel dam and a third-stage steel dam which have the same structure and sequentially sleeve the interior of the rectangular steel groove from interior to exterior, three convex slideways are respectively arranged at the two side surfaces of each stage of steel dam, waterstop rubber is respectively and fixedly arranged at the upper end and the lower end of each steel dam, a water inlet and outlet pipeline comprises a water inlet pipeline, a water inlet valve, a water outlet pipeline and a water outlet valve, a steel dam water injection pipeline comprises a water injection pump, a water injection valve and a water draining valve, and the water injection pipeline is communicated with the water injection opening at the bottom part of the steel dam groove. The multi-stage telescopic type steel dam has the advantages that the structure is novel, the operation is easy, the property is reliable, the construction workload is small, and the resource is saved; as the full steel structure is adopted, compared with the traditional structure, the stability and anti-scouring capability are higher, and the technical benefits and economic suitability are better.

Description

technical field [0001] The invention relates to water retaining facilities in water conservancy projects, in particular to a multi-stage telescopic steel dam. Background technique [0002] In recent years, high dam projects have developed rapidly, featuring high water head, large single-width discharge, and narrow river valleys. However, some small rivers have small flows and low water levels, and the water levels are subject to large seasonal changes. According to statistics, there are more than 50,000 rivers with a drainage area of ​​more than 100 square kilometers, 1,580 rivers with a drainage area of ​​more than 1,000 square kilometers, and 79 rivers with a drainage area of ​​more than 10,000 square kilometers. In addition to large rivers such as the Yangtze River and the Yellow River, there are also a large number of small and medium-sized rivers in my country. On the other hand, the investment in infrastructure construction of small and medium-sized farmland water co...

AI Technical Summary

Problems solved by technology

Using the structural form of large-scale water conservancy projects to construct small-scale farmland water conservancy projects may cause unnecessary waste and artificially increase the difficulty of design and construction

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