Arch type flexible ecological revetment structure for small and medium-sized valley or river channel and construction method for arch type flexible ecological revetment structure

Abstract

The invention discloses an arch type flexible ecological revetment structure for a small and medium-sized valley or river channel and a construction method for the arch type flexible ecological revetment structure. The arch type flexible ecological revetment structure is characterized in that gabion retaining walls are built on valley or river channel bank slopes along the longitudinal direction; the bottoms of the gabion retaining walls are supported by an inverted stone arch built in the valley or river channel; the upper ends of the gabion retaining walls are tied at anchoring points of the bank slopes above the gabion retaining walls by tightening corrosion-resisting metal ropes. The construction method for the arch type flexible ecological revetment structure comprises the following steps of laying a metal mesh and loading stones on a substrate of each valley or river channel bank slope; vibrating, compacting and packaging the stones to form gabion units; sewing and tying adjacent gabions by using the corrosion-resisting metal ropes and building to the design elevation according to the mode; tightening and tying the gabions to the anchoring points of the bank slopes above the gabions by the corrosion-resisting metal ropes; meanwhile, building the inverted stone arch for supporting the bottoms of the gabion retaining walls in the valley or river channel. The arch type flexible ecological revetment structure and the construction method thereof disclosed by the invention have the advantages of reasonable mechanical design, simple construction process, easiness in construction and low construction cost; frequent landslides of the valley or river channel are prevented, disasters caused by the landslides are reduced, and ecological revetment is realized.

Description

technical field [0001] The invention relates to a landslide regulation engineering technology for medium and small valleys and river courses, in particular to a bank protection structure suitable for medium and small valleys or river courses and a construction method thereof. Background technique [0002] Small and medium-sized valleys or rivers located in mountainous areas (hereinafter referred to as valley channels), due to steep slopes and rapid water flow, under the impact of water flow and rolling stones, small and medium-sized landslides frequently occur on both sides of the valleys and rivers, which are faced by the operation of valleys and rivers in mountainous areas. major disasters. In order to prevent or reduce the frequent landslides on the bank slopes of the valleys and rivers, the prevention and control measures that are widely adopted at present are to build rigid retaining walls and bank protection structures made of masonry and concrete materials on the bank...

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Problems solved by technology

[0003] Aiming at the deficiencies of the existing rigid retaining wall revetment structure, the first purpose of the present invention is to provide an arch ecological flexible revetment structure for small and medium-sized valley channels, to overcome the existence of rigid retaining revetment structures widely used at present. high construction cost, incompatibility with the environment, poor water flow is not conducive to the release of slope water pressure, lack of flexibility, easy to be damaged by the huge impact force of rolling stones, and easy to weather and aging; the second purpose of the present invention is to provide a A new method for constructing an arch ecologically flexible revetment structure for small and medium-sized valley channels

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