Soft soil foundation diversion canal construction method for taking water from rivers

Abstract

The invention discloses a soft soil foundation diversion canal construction method for taking water from rivers. The construction method comprises the following steps: (1) a soil retaining support structure formed by mutual occlusion of occluded cast-in-place piles is utilized; (2) the top ends of left bank cast-in-place piles and the top ends of right bank cast-in-place piles are connected into a whole through concrete top beams; (3) the left bank cast-in-place piles and the right bank cast-in-place piles are supported by using concrete diagonal supporting beams to prevent soil bodies on the two sides from moving inwards; (4) traffic bridges are arranged at the tops of the cast-in-place piles, and a frame structure type (through-road) diversion canal is formed through combination; and (5) excavation of a foundation pit between the cast-in-place piles is conducted, and finally bottom plate mold bag concrete construction is conducted. According to the construction method, the construction operation method that water is taken in the river, the occupied construction space is small, and a temporary construction cofferdam does not need to be built is achieved, the pile foundation and the traffic bridges are combined for design and construction, the construction speed is high, the construction period is shortened, the construction method is suitable for soft soil foundations, safety and reliability are achieved, and investment is saved.

Description

technical field [0001] The invention relates to a construction method for an aqueduct, in particular to a construction method for an aqueduct on a soft soil foundation for water intake in rivers. Background technique [0002] Among the water resources, rivers are characterized by abundant water and wide distribution, and are often used as water supply sources for cities, industries, and irrigation. Due to various conditions such as terrain and navigation, it is not possible to directly build pumping stations or barrages to draw water from rivers. It is necessary to first lead the water to a pool suitable for water intake or the forebay of the pumping station through a diversion channel. [0003] Under normal circumstances, if the diversion canal is used to draw water from the river, it will involve the excavation of complex deep foundation pits and the construction of temporary construction cofferdams. The construction is relatively cumbersome and will affect the traffic on ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for constructing a soft soil foundation diversion channel for water intake in rivers according to the deficiencies of the prior art above, which adopts the joint design of interlocking cast-in-place piles and traffic bridges, has a simple body shape, and realizes interlocking cast-in-place piles and molds. The bagged concrete replaces the retaining wall and bottom plate of the traditional water diversion channel, and builds a frame structure combining the occlusal cast-in-place pile and the traffic bridge, which solves the technical problems of complex deep foundation pit support and temporary construction of the cofferdam, and achieves saving investment, shortening the construction period, Simple technical effect of construction

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