Overflow slag collection weir for water conservancy and hydropower projects and its construction method

Abstract

The invention discloses an overflow slag collection weir for water conservancy and hydropower projects and a construction method thereof, belonging to the technical field of design and construction of buildings for water conservancy and hydropower projects. Provided is an overcurrent slag collection weir for water conservancy and hydropower projects, which is convenient for collecting construction slag, has a simple structure, and does not cause river channel siltation, and a construction method thereof. The over-current slag collection weir includes an over-current weir body and an over-current protection structure laid outside the over-current weir body. In the construction method described above, gravel slag and riprap are thrown in the natural river channel to form a weir; On the upstream side of the weir body, dry stone slope protection is constructed, and geotextiles are laid on the weir crest, the downstream side of the weir body and the platform at the foot of the slope; The concrete section of the foot platform and its anti-scour piles and connecting beams and slabs; finally, the reinforced gabion permeable and anti-scour pressing body is constructed to complete the construction of the overflow slag collection weir.

Description

technical field [0001] The invention relates to an overflow slag collection weir, in particular to an overflow slag collection weir for water conservancy and hydropower projects, and belongs to the technical field of design and construction of water conservancy and hydropower engineering buildings. The invention also relates to a construction method for constructing the overflow slag collection weir. Background technique [0002] In water conservancy and hydropower projects, when excavating dam abutment slopes or river bank slopes, the current general technology is to set up a slag collection platform at the foot of the river bank slope to collect gravel. However, due to the steep slope, the slag collection platform collects limited gravel. The excavated gravel will enter the river channel and be carried downstream by the water flow, causing river channel siltation and soil erosion. At the same time, it is difficult to collect slag in the construction of the slope toe. Ther...

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Problems solved by technology

[0002] In water conservancy and hydropower projects, the excavation of the dam abutment slope or the river bank slope, the current general technology is to set up a slag collection platform at the foot of the river bank slope to collect gravel, but due to the steep slope, the slag collection platform collects limited gravel. The excavated gravel will enter the river channel and be carried downstream by the water flow, causing river channel siltation and soil erosion. At the same time, it is difficult to collect slag in the construction of the slope toe

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