Comprehensive side-slope treatment structure for preventing river channel erosion and construction method thereof

Abstract

The invention relates to a comprehensive side-slope treatment structure for preventing river channel erosion and a construction method thereof. The comprehensive side-slope treatment structure aims at preventing the phenomenon that a river channel covering layer at the downstream position of a flood releasing structure is thick and is frequently scoured by water flow, and therefore side slopes at both shores and a river channel are comprehensively treated, and stability and safety of the side slopes and buildings near the side slopes are ensured. According to the technical scheme, the comprehensive side-slope treatment structure for preventing river channel erosion is characterized in that concrete guard walls are arranged on the river channel side slopes at the downstream position of a flood releasing structure, two to three rows of cement cast-in-place piles stretching into the bed rock surface are arranged on the side, close to a river channel, of each concrete guard wall, and the space between each concrete guard wall and the corresponding river bank is backfilled with rock ballast; concrete foundations connected with the corresponding concrete guard walls are arranged at the tops of the cement cast-in-place piles, and a structural joint is arranged between each concrete foundation and the corresponding concrete guard wall; and alloy net stone bags which are connected in series and extend to the bottom of a riverbed are arranged on the side, close to the river channel, of each concrete foundation.

Description

technical field [0001] The invention relates to a slope comprehensive treatment structure for preventing river erosion and its construction method, which is suitable for the design when the river course covering layer downstream of the flood discharge structure is relatively deep and often suffers from water flow erosion, and the side slopes and river courses on both banks need to be comprehensively treated. and construction. Background technique [0002] For flood discharge structures of water conservancy projects, when the water flow passes through the stilling basin or the apron to substantially dissipate energy, it still maintains a certain amount of residual energy. In general engineering, necessary protective measures are often considered in the river channel downstream of the stilling basin or apron and the slopes on both banks to protect the riverbed from erosion and ensure the stability and safety of the slope and nearby buildings. [0003] When the river channel c...

AI Technical Summary

Problems solved by technology

Under the impact of long-term water flow, the covering layer of the river bed may be washed away to form a large-scale scour pit, and some projects even have slope protection (bottom protection) damage, retaining wall deformation and even collapse, which seriously threatens the safety of the project

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