Energy dissipation type debris flow check dam combined draining and guiding and blocking
A technology for retaining sand dams and debris flow, applied in dams, buttress dams, marine engineering, etc., it can solve the problems of limited storage capacity of retaining dams, loss of debris flow retaining effect, and silting, so as to reduce kinetic energy and improve roughness. , the effect of preventing structural blockage
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Embodiment 1
[0030] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 shown. The drainage area of a debris flow ditch is 0.5km 2 , the channel width is 20m, and the debris flow channel-bed gradient is 20%, at P 2% Under the design standard, the flow rate of debris flow is 20m 3 / s. In order to control debris flow disasters, it is planned to build a debris flow sand retaining dam combined with energy dissipation type drainage and blocking in the debris flow channel.
[0031] The sand control dam includes a dam body foundation and a dam body body located on the dam body foundation; the dam body body includes 12 reinforced concrete buttresses 1 distributed at certain intervals, and 1 of every two buttresses is provided with Horizontal grid 2. Due to the large slope of the ditch bed, the potential energy of the debris flow is large, and the debris flow has a strong ability to transport boulders and a high flow rate. In order to increase the bl...
Embodiment 2
[0033] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 shown. The drainage area of a debris flow ditch is 3.5km 2 , the channel width is 50m, and the debris flow channel bed ratio is 6%, at P 2% Under the design standard, the flow of debris flow is 60m 3 / s. In order to control debris flow disasters, it is planned to build a debris flow sand retaining dam combined with energy dissipation type drainage and blocking in the debris flow channel.
[0034]The sand control dam includes a dam body foundation and a dam body body located on the dam body foundation; the dam body body includes 14 reinforced concrete buttresses 1 distributed at certain intervals, and every two buttresses are provided with Horizontal grid 2. Due to the small gradient of the ditch bed, the wide watershed, the low discharge potential energy of the debris flow, the low flow velocity of the debris flow, and the weak ability of the debris flow to carry boulder...
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