Biofilm principle-based ecological water passing weir
A biofilm and ecological technology, applied in the field of near-natural water resources engineering, can solve problems such as poor anti-scourability, low water passing capacity, and high operation and maintenance costs, and achieve the effect of expanding storage capacity, increasing water level, and ensuring water quality compliance
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Embodiment 1
[0026] figure 1 It is a cross-sectional schematic diagram of an ecological water weir with a core wall of double-row wooden piles, figure 2 It is a schematic plan view of the double-row wooden pile core wall ecological weir. Its construction method specifically includes the following steps:
[0027] (1) Vertically build a core wall 1 of permeable and water-permeable double-row wooden piles on the original river bed. The round wooden piles are inserted into the ground, and the wooden piles are connected and fixed by iron wires. The overall shape of the core wall can be linear or arc-shaped; Pile riprap 4 between and on both sides of the wooden pile core wall 1 to ensure the physical stability of the weir body. The riprap 4 can be dense, hard, durable, and easy to select materials such as granite and limestone. Generally, the slope ratio of the ecological weir after the riprap 4 is piled up should be 1:1.5, so as to increase the contact area between the water flow and the rip...
Embodiment 2
[0034] In the subsidence area of Quanshang Coal Mine in Tengzhou City, at the water-facing surface of the connecting culvert pipe mouth 6 of the five reservoirs and ponds in the Qixing Lake Wetland in the subsidence area of the Quanshang Coal Mine in Tengzhou City, an ecological water weir with a semicircular single-row wooden pile core wall (such as image 3 ). The core wall of the ecological water weir is built with round wooden piles with a diameter of 15cm. The length of the wooden piles is 85-95cm. The long and short wooden piles are arranged at intervals. Circular wooden pile core wall 1, the two ends of the core wall are fixed on the walls of the retaining wall 7 on both sides of the culvert with double rows of 4mm angle steel; piles of riprap 4 with a diameter of 10-20cm are stacked on both sides of the wooden pile as the weir body, which not only ensures the ecological process The stability of the water weir forms a biological space through the riprap gap; 10kg / m ...
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