A construction method for the meandering form of small and medium-sized linear rivers

Abstract

The invention relates to a winding form construction method for small-and-medium-sized linear riverways and aims to effectively solve the problem of winding form construction of the linear riverways. The method includes: throwing gravels to form gravel piles on one side of a main river channel from the bottom layer to the upper layer, wherein the distance between nearshore points and far off-shore points of the gravel piles is 1 / 5 of the width of the main river channel; arranging gabions on water sides and lateral sides of the gravel piles to fix the gravel piles; expanding a riverway opposite to the gravel piles to a width 1 / 5 of that of the main river channel; downwardly excavating one side, with the riverway modified, of a riverbed to form a deep pool, and piling up excavated earthworks to air faces of the gravel piles to form a shoal; positioning the two gravel piles on two sides of the riverway respectively to form a gravel pile group, enabling the air faces of the gravel piles to form a shoal structure, enabling the modified opposite bank to form a deep pool structure, and planting submerged plants in the deep pool; arranging three to five groups of gravel piles in the linear riverway to form an ecological gravel group to increase local winding degree of the riverway, so that winding form construction of the riverway is realized. The winding form construction method for the small-and-medium-sized linear riverways has the advantages that unification of purification and landscape functions is realized, and enormous economic and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of water ecological restoration, in particular to a method for constructing meandering forms of small and medium-sized linearized river courses. Background technique [0002] With the increase of population and the rapid development of economy, the consumption of water resources and the generation of waste water are increasing rapidly. At the same time, the construction of water conservancy facilities for the purpose of water volume regulation and flood control and the engineering of cutting and straightening the river channel have destroyed the continuity and meandering of the river. Changes in hydrological conditions such as water temperature, flow velocity, and water depth have led to the disappearance of riparian vegetation, sharp decline in biodiversity, destruction of energy and material flows, and reduced landscape heterogeneity. [0003] Natural rivers are generally meandering, which is the most sta...

AI Technical Summary

Problems solved by technology

At the same time, the construction of water conservancy facilities for the purpose of water volume control and flood control and the engineering of cutting and straightening the river channel have destroyed the continuity and meandering of the river. Changes in hydrological conditions such as water temperature, flow velocity, and water depth have led to the disappearance of riparian vegetation belts, sharp decline in biodiversity, destruction of energy and material flows, and reduction of landscape heterogeneity.

Images