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A platform for research: civil engineering, architecture and urbanism
Combined energy dissipation structure of flood discharge tunnel
The invention discloses a combined energy dissipation structure of a flood discharge tunnel. The structure is characterized in that a plurality of energy dissipation piers are arranged behind an entrance of the tunnel; the plurality of energy dissipation piers are distributed on the wall surfaces of two sides of the tunnel and protrude inwards to form a hump shape; a stilling pool is arranged behind the energy dissipation piers and is located below the tunnel ground elevation of energy dissipation pier sections; an overflow weir is arranged behind the stilling pool; an overflow weir straight line section is arranged in the middle of the overflow weir; step energy dissipaters are arranged on the straight line section of the overflow weir; and a flip bucket is arranged at the tail end of theoverflow weir. The combined energy dissipation structure is adopted, the advantages of all the single energy dissipaters are brought into full play, the water flow state can be effectively improved,the flow velocity of water flow in the tunnel is reduced, the energy dissipation efficiency is improved, and the purposes of reducing downstream energy dissipation tasks and reducing the manufacturingcost of downstream energy dissipation buildings are achieved.
本发明公开了一种泄洪隧洞的联合式消能结构，其特征在于：隧洞进口之后设置有消能墩，若干所述消能墩分布于隧洞两侧的壁面上，向内凸起为驼峰形；所述消能墩之后设有消力池，所述消力池位于消能墩段的隧洞地面高程以下；所述消力池之后设有溢流堰，所述溢流堰的中部设置有溢流堰直线段；所述溢流堰直线段设置有台阶消能工，所述溢流堰的末端设有挑坎。本发明采用联合式消能结构，充分发挥各单体消能工的优势，能够有效改善水流流态，降低洞内水流流速，提高消能效率，达到减轻下游消能任务，降低下游消能建筑物造价的目的。
Combined energy dissipation structure of flood discharge tunnel
The invention discloses a combined energy dissipation structure of a flood discharge tunnel. The structure is characterized in that a plurality of energy dissipation piers are arranged behind an entrance of the tunnel; the plurality of energy dissipation piers are distributed on the wall surfaces of two sides of the tunnel and protrude inwards to form a hump shape; a stilling pool is arranged behind the energy dissipation piers and is located below the tunnel ground elevation of energy dissipation pier sections; an overflow weir is arranged behind the stilling pool; an overflow weir straight line section is arranged in the middle of the overflow weir; step energy dissipaters are arranged on the straight line section of the overflow weir; and a flip bucket is arranged at the tail end of theoverflow weir. The combined energy dissipation structure is adopted, the advantages of all the single energy dissipaters are brought into full play, the water flow state can be effectively improved,the flow velocity of water flow in the tunnel is reduced, the energy dissipation efficiency is improved, and the purposes of reducing downstream energy dissipation tasks and reducing the manufacturingcost of downstream energy dissipation buildings are achieved.
本发明公开了一种泄洪隧洞的联合式消能结构，其特征在于：隧洞进口之后设置有消能墩，若干所述消能墩分布于隧洞两侧的壁面上，向内凸起为驼峰形；所述消能墩之后设有消力池，所述消力池位于消能墩段的隧洞地面高程以下；所述消力池之后设有溢流堰，所述溢流堰的中部设置有溢流堰直线段；所述溢流堰直线段设置有台阶消能工，所述溢流堰的末端设有挑坎。本发明采用联合式消能结构，充分发挥各单体消能工的优势，能够有效改善水流流态，降低洞内水流流速，提高消能效率，达到减轻下游消能任务，降低下游消能建筑物造价的目的。
Combined energy dissipation structure of flood discharge tunnel
一种泄洪隧洞的联合式消能结构
NIE YIBO (author) / WANG LIYONG (author) / YU KE (author) / PENG HUIQIONG (author) / XU NA (author) / LI LINGUO (author) / TAN YUAN (author) / LI JIAN (author) / ZHU SHENG (author)
2021-02-09
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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