Management and protection-free integrated silt dam and construction method thereof

Abstract

The invention discloses a management and protection-free integrated silt dam. The management and protection-free integrated silt dam comprises a homogeneous earth dam body. In order to improve the anti-scouring capability of a protective slope, mixture protective layers with the thickness of 1.0-3.0 m are arranged on the upstream and downstream dam slope surfaces of the homogeneous earth dam body.In order to drain seepage water in the dam body in time, a plurality of layers of drain blind tubes are embedded in the homogeneous earth dam body at intervals. Tube ports of the drain blind tubes extend out of the downstream dam slope. A mixture layer with the thickness of 2 m is filled on the dam top of the homogeneous earth dam body. The mixture layer and the mixture protective layers laid onthe upstream and downstream dam slope surfaces are connected into a whole. The invention further discloses a construction method of the management and protection-free integrated silt dam. The integrated silt dam provided by the invention is convenient to construct. The anti-scouring capability of the upstream and downstream dam slopes is improved. Accordingly, the dam body can be overflowed, a sluicing structure can be omitted, and the engineering investment is greatly saved. Meanwhile, through the high anti-scouring capability of the dam slope, the problem that an existing silt dam exceeds standard flood and is prone to dam break is solved well, and the engineering management and protection task is simplified.

Description

technical field [0001] The invention relates to the technical field of construction of check dams, in particular to a management-free and protective integrated check dam, and the invention also relates to a construction method of the management-free and protective integrated check dam. Background technique [0002] In the Loess Plateau area of ​​Northwest my country, there are ravines and ravines, and soil erosion is serious. In order to intercept the silt formed by water and soil erosion, a large number of check dams have been built in the ditches. The layout of check dams is generally to build a series of cascade dams in the main channel, the branch channel and the main channel according to the size of the drainage area of ​​the channel. Flood detention, mud retention, silting, and reducing sediment entering the river are of great significance, and are an important measure for comprehensive management of small watersheds. [0003] The check dams currently built are compos...

AI Technical Summary

Problems solved by technology

Due to the large number of check dams and scattered distribution, the management and protection tasks are huge, and the flood control standards of check dams are low. The excessive flood caused by the dam failure will pose a threat to the downstream check dam, thus forming a chain reaction

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