Boulder apron energy dissipating and scour preventing structure and construction method thereof
A stone apron and large block technology, which is applied to the large stone apron energy dissipation and anti-scour structure and its construction, and in the field of water conservancy and hydropower projects, can solve the problems of inconvenient operation and maintenance, cavitation and wear, and long construction time , to achieve the effect of shortening the length of the apron, less engineering quantity and short construction period
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[0022] Such as Figure 1-Figure 5 As shown, this embodiment is suitable for water conservancy and hydropower projects with low water head in mountainous areas rich in large boulders. Under this condition, the flow rate of the water discharged from the discharge structure is relatively low, and the downstream water depth is small, so that the large boulders can use gravity to ensure their own stability. become possible, so in this example, a large stone apron is used to replace the concrete apron in the existing energy dissipation and anti-scour structure; its structure includes the gate dam foundation 5, and the concrete gate dam 1 built on the gate dam foundation. On the downstream side of the dam, concrete apron 2, first-level large stone apron 3 and second-level large stone apron 4 are sequentially arranged along the direction of water flow.
[0023] The length of the entire boulder apron (including the first-level boulder apron and the second-level boulder apron) is L=6(h″...
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