Over-current slag collecting weir for water conservancy and hydropower engineering and construction method thereof
A technology for water conservancy, hydropower, and flow, which is applied in water conservancy projects, sea area projects, barrage/weirs, etc., and can solve the problem of silted water and soil in rivers, limited gravel collected by slag collection platforms, and difficulty in building slag collection at the foot of bank slopes, etc. question
Active Publication Date: 2015-09-30
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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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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[0019] Such as Figure 1 to Figure 5 Shown is a construction slag collecting weir provided by the present invention, which is convenient for collecting construction slag, has a simple structure, and does not cause river siltation, and is used in water conservancy and hydropower projects, and a construction method for constructing the overflow slag collection weir . The overflow slag collection weir includes an overflow weir body 1 and an overcurrent protection structure laid on the outside of the overflow weir body 1; the building slag collected on the upstream side of the overflow slag collection weir passes through the The overcurrent protection structure is blocked on the upstream side of the overcurrent slag collection weir under the support of the overcurrent weir body 1, and the water flow from the upstream of the overcurrent slag collection weir passes through the overcurrent protection structure and the overcurrent slag collection weir. The above-mentioned overflow we...
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The invention discloses an over-current slag collecting weir for water conservancy and hydropower engineering and a construction method thereof, and belongs to the technical field of water conservancy and hydropower engineering building design and construction. According to the over-current slag collecting weir for the water conservancy and hydropower engineering and the construction method thereof, the building slag collection is convenient, the structure is simple, and river channel sedimentation can not be caused. The over-current slag collecting weir comprises an over-current weir body and an over-current protection structure laid on the outer side of the over-current weir body. The construction method comprises the steps that firstly, rock ballast and riprap are thrown and filled in a natural river channel to form the over-current weir body; secondly, transition layer ballast materials and bedding layer fine slag materials are filled on the surface of the over-current weir body; thirdly, loose-stone revetment is constructed on the upstream side of the over-current weir body, and geotechnical cloth is laid at the weir top and on the downstream side and a slope toe platform of the downstream side; fourthly, a flat concrete section, a dam top watertight concrete section, a slope toe platform concrete section and a guard pile and connecting beam slab of the slope toe platform concrete section are poured; lastly, reinforcement gabion permeable erosion protection pressing bodies are constructed to complete the construction work of the over-current slag collecting 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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IPC IPC(8): E02B7/02
Inventor 雷运华梁娟王小波蒲建平付峥何兴勇金伟曹驾云
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE