Dike underwater concrete paving construction method

Abstract

The invention discloses a dike underwater concrete paving construction method. The dike underwater concrete paving construction method comprises the steps that after offshore slope riprapping is conducted through a ship, a riprap surface is flattened; geotextile cloth bags are sewn, and the length of the geotextile cloth bags is equal to the sum of the length of an underwater paving and the length of an overwater paving of a soil texture dike; the geotextile cloth bags are sequentially laid in the shoreline construction direction; concrete is started to be poured to the bottoms of the geotextile cloth bags, and the pouring length corresponds to the designed slop length; concrete pouring is sequentially conducted from underwater tail end pouring sleeving openings of the geotextile cloth bags towards the overwater direction; the concrete flows in the geotextile cloth bags in a filling mode, all the geotextile cloth bags are filled with the concrete, and after the concrete is solidified and hardened, an underwater concrete paving is formed in a preset designed position and plays a function of protecting the underwater portion of the soil texture dike; after the concrete in the geotextile cloth bags reaches the designed strength, concrete pouring of a pressing top or an anchoring groove is conducted, and slope toe riprap pressing foot construction is carried out; and construction is not limited by seasons and can be conducted in both the low flow period and the high flow period.

Description

technical field [0001] The invention relates to a method for constructing dam face protection in the field of hydraulic engineering construction research, in particular to a construction method for underwater concrete face protection of dykes. Background technique [0002] Due to the destructive effects of excessive sand mining, river bed incision, deep trough forced bank, and water erosion, the underwater parts of river embankments and reservoir earth dams were eroded, scoured, and collapsed. The stability of the body will decrease, which will endanger the safety of the dam. It is necessary to use concrete with good mechanical properties and erosion resistance to protect the underwater part of the dam. [0003] The traditional treatment method is mainly in the dry season, when the water level of the river and the reservoir is low, build the cofferdam at the part where the underwater part of the soil dam needs to be protected, create conditions for land construction, install...

AI Technical Summary

Problems solved by technology

Its disadvantages are: ①The construction time is limited, it must be in the dry season, and it cannot be implemented at other times, especially when emergency rescue is required; ②Before construction, it is necessary to build a cofferdam, and after construction, it is necessary to remove the cofferdam , large amount of work and large investment; ③Before pouring concrete, formwork needs to be installed, and after the concrete hardens, the formwork needs to be removed, which requires a lot of labor, which wastes both formwork and labor; ④Vibration and other operations are required, and the labor intensity of workers is high; ⑤Segmented construction, and many processes, long construction period