Construction method of natural bank slope protection structure based on sponge city concept

Abstract

The invention relates to a construction method of a natural bank slope protection structure based on a sponge city concept. The construction method comprises the following steps that S1, a filter pond is constructed, specifically, a filter pond foundation trench is excavated, a water filter gabion A and a water filter gabion B are formed, water-permeable geotechnical cloth is laid, a regulation and storage layer is filled, a drainage blind pipe B is pre-buried, and planting soil B is filled; S2, a rain ditch and a water-permeable step are prefabricated; S3, a terrace type revetment is constructed, specifically, water-permeable geotechnical cloth is laid, bank slope gravel is laid in a layered mode and rolled, living wood piles are driven, and backfill soil and a plant fiber blanket are constructed; S4, a hydrophilic footpath is constructed; and S5, a grass planting drainage ditch is constructed, specifically, a grass planting drainage ditch groove is excavated, a prefabricated water catchment ridge and a prefabricated overflow ridge are built, water-permeable geotechnical cloth is laid, drainage ditch gravel is constructed, a drainage blind pipe A is buried, and planting soil A is filled. The bank slope protection structure is convenient to construct and stable in structure, and natural accumulation, natural permeation and natural purification are achieved.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering, and in particular relates to a natural bank slope protection based on the sponge city concept, which is suitable for river bank slope protection construction and river bank slope protection construction with high landscape requirements. Background technique [0002] With the rapid development of cities, agriculture, industry and human activities are increasingly damaging the river ecosystem. A large amount of agricultural non-point source pollution, industrial wastewater and domestic sewage are directly discharged into the river, resulting in deterioration of water quality and serious river ecological environment. pollute. Hard revetments such as reinforced concrete and mortar block stones used in traditional river regulation, such as an ecological hard revetment structure disclosed by the patent No. CN207244563U, include upright bank sections and slope bank sections connected above t...

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Problems solved by technology

[0004]The purpose of the present invention is to solve the problems existing in traditional hard slope protection, which prevent water and land energy and material exchange, unsound water ecosystem, weak self-purification ability, and prone to ditching A construction method of natural slope protection structure based on the concept of sponge city is proposed

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