A flood control cofferdam device and its construction method

Abstract

The invention discloses a flood prevention cofferdam device and a construction method thereof. The flood prevention cofferdam device comprises a cofferdam monomer; the cofferdam monomer comprises a first positioning plate, a second positioning plate and a ton bag; the first positioning plate is positioned above the second positioning plate and fixedly connected with the second positioning plate through at least four upright posts; grids are uniformly arranged between the first positioning plate and the second positioning plate; and the ton bag is positioned in the grids. The construction method of the flood prevention cofferdam device comprises the steps of staking out in survey, laying geotextile, manufacturing the flood prevention cofferdam device, circularly stacking the flood prevention cofferdam devices, and backfilling and compacting clay. The construction method has simple steps and high practicability, the construction of the flood prevention cofferdams with different sizes andareas can be met, the strength of a water facing surface is greatly improved and the erosion of silt is reduced.

Description

technical field [0001] The invention relates to a flood control cofferdam device and a construction method thereof. Background technique [0002] There are many kinds of traditional temporary cofferdams, and the construction of cofferdams is often limited by the site foundation and construction conditions and economic applicability considerations. The traditional adaptability problems of the cofferdams that need to be built include: the tensile steel sheet pile cofferdam in the traditional cofferdam type is limited by the ten-layer penetration of the dry block of the river bed; The purchase of silt soil is limited by the high cost of environmental protection factors; the cost of mold bag concrete stove is high; the marble block cofferdam is limited by the lack of block stone wharf nearby; the land transportation of large-tonnage building materials is limited by the load capacity and traffic of urban rivers; The general soil cofferdam for protection cannot withstand the dama...

AI Technical Summary

Problems solved by technology

The traditional adaptability problems of the cofferdams that need to be built include: the tensile steel sheet pile cofferdam in the traditional cofferdam type is limited by the ten-layer penetration of the dry block of the river bed; The purchase of silt soil is limited by the high cost of environmental protection factors; the cost of mold bag concrete stove is high; the marble block cofferdam is limited by the lack of block stone wharf nearby; the land transportation of large-tonnage building materials is limited by the load capacity and traffic of urban rivers; The general soil cofferdam for protection cannot bear the damage caused by the hydraulic erosion of the river

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