Method for jointly repairing submerged plants on underwater hard slope of river

Abstract

The invention relates to a method for jointly repairing submerged plants on a river underwater hard slope, which comprises the following steps of: coating a planting matrix and inserting the root systems of submerged plants or spreading the submerged plants by using spinning geotextile as a bottom layer and a hempthread net as a top layer to manufacture a geomembrane blanket, and reserving rivet holes and plastic bolt holes for fixation at four corners, each edge and the center of the geomembrane blanket; fixing the upper end of the geomembrane blanket at the upper part of the underwater slope surface at the normal water level of a river by using bolts when the geomembrane blanket is used; and spreading the geomembrane blanket to the downward slope surface, driving bolts into the reservedrivet holes for fixation, and dumping stone at feet of the slope to press the edges. According to the area range of the river underwater hard slope to be repaired, the specification of the geomembrane blanket and the quantity of the combination geomembrane blankets can be freely selected to form the repairing region of submerged plants on the joint type river underwater hard slope. The method provided by the invention has the effects of purifying river water quality, conserving moisture, and the like, and the purposes of repairing the hard protecting slope of the river bed, purifying water quality and improving the ecological environment of the river are achieved.

Description

technical field [0001] The invention relates to a combined repair method for submerged plants on hard slopes under water in rivers. The invention belongs to the technical field of river water quality purification and ecological restoration. Background technique [0002] As an important part of the river ecosystem, the river slope is the transition zone between the river and the terrestrial ecosystem, and has important functions in water and soil conservation, water purification, flood control and flood discharge. For a long time, hardened slope protection such as mortar or dry block stone slope protection, cast-in-place concrete slope protection, and prefabricated concrete block slope protection has been used for river slope protection. The main focus is on the stability and safety of the slope, and less consideration is given to hard The huge negative impact of river slope protection on the ecological environment. [0003] In recent years, the ecological restoration techn...

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Problems solved by technology

[0003] In recent years, the ecological restoration technology for the above-water part of the hard slope has been greatly developed, and good ecological effects have been achieved, but the ecological restoration method for the underwater part of the hard slope is very lacking, and there is an urgent need to develop underwater hard slopes. Ecological Restoration Technology for Slopes

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