A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Diversion channel closure method
The invention discloses a diversion channel closure method. During excavation of a diversion channel, a rock step is reserved to serve as a closure step, a rock step is reserved at the position of an outlet of the diversion channel to serve as a river diversion and slope protection step, and a 30-60-degree angle is formed between the river diversion and slope protection step and the water flow direction. During closure, a berm is built, and the reserved closure step is made to be located at the position of a slope toe on the lower portion of the closure gap section of the berm. When two berms are used for closure, closure gaps are arranged in a stagger mode, reverse occupation is achieved, and the river diversion and slope protection step is lengthened to be a construction trestle. By means of the reserved closure step, the hydraulic index of closure gaps is reduced, riprap stability is improved, the split ratio of a drainage gallery is increased, and closure difficulty is reduced; the flow state at the outlet is changed by means of the river diversion and slope protection step, and bank slope scouring is prevented or reduced; meanwhile, the river diversion and slope protection step is part of a closure trestle, and the length of the trestle is reduced.
Diversion channel closure method
The invention discloses a diversion channel closure method. During excavation of a diversion channel, a rock step is reserved to serve as a closure step, a rock step is reserved at the position of an outlet of the diversion channel to serve as a river diversion and slope protection step, and a 30-60-degree angle is formed between the river diversion and slope protection step and the water flow direction. During closure, a berm is built, and the reserved closure step is made to be located at the position of a slope toe on the lower portion of the closure gap section of the berm. When two berms are used for closure, closure gaps are arranged in a stagger mode, reverse occupation is achieved, and the river diversion and slope protection step is lengthened to be a construction trestle. By means of the reserved closure step, the hydraulic index of closure gaps is reduced, riprap stability is improved, the split ratio of a drainage gallery is increased, and closure difficulty is reduced; the flow state at the outlet is changed by means of the river diversion and slope protection step, and bank slope scouring is prevented or reduced; meanwhile, the river diversion and slope protection step is part of a closure trestle, and the length of the trestle is reduced.
Diversion channel closure method
HU ZHIGEN (author) / LU HE (author) / LYU GUOXUAN (author) / YE JIANQUN (author) / LIU QUAN (author)
2015-07-08
Patent
Electronic Resource
English
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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