Flood discharge and energy dissipation method with large-height-difference slope at outlet of flood discharge tunnel

A technology for exits and slopes, applied in sea area engineering, construction, hydroelectric power generation, etc., can solve the problems of difficult construction, large engineering volume, poor safety, etc., and achieve low construction difficulty, good dispersion of energy dissipation, and low cost Effect

Active Publication Date: 2021-07-23
HUBEI PROVINCIAL WATER RESOURCES & HYDROPOWER PLANNING SURVEY & DESIGN INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, if the flood discharge tunnel passes through the mountain, the exit of the flood discharge tunnel is a slope terrain, which is not suitable for the construction of these conventional energy dissipation structures. The use of traditional energy dissipation structures has the problems of large engineering volume, difficult construction, and poor safety.

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  • Flood discharge and energy dissipation method with large-height-difference slope at outlet of flood discharge tunnel
  • Flood discharge and energy dissipation method with large-height-difference slope at outlet of flood discharge tunnel
  • Flood discharge and energy dissipation method with large-height-difference slope at outlet of flood discharge tunnel

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", " The orientation or positional relationship indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or positional relationship shown in the drawings, and only It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific or...

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Abstract

The invention relates to the technical field of flood discharge and energy dissipation methods for water conservancy projects, in particular to a flood discharge and energy dissipation method with a large-height-difference slope at an outlet of a flood discharge tunnel. The flood discharge and energy dissipation method comprises the following steps: 1) a stilling basin is built at the outlet of the flood discharge tunnel; 2) a mountain-crossing drainage channel is built on the slope at the outlet of the flood discharge tunnel, the high point of the mountain-crossing drainage channel communicates with the stilling basin, and the low point of the mountain-crossing drainage channel meanders downwards in the gradient direction of the slope; and 3) a drainage structure is installed on the side portion of the mountain-crossing drainage channel to drain water flow in the mountain-crossing drainage channel to the slope surface, the water flow is blocked through the slope surface for energy dissipation, and high dam flood discharge and energy dissipation are completed. The flood discharge and energy dissipation method is extremely simple in construction, extremely low in construction cost, extremely low in construction difficulty and capable of well dissipating energy of drainage of the flood discharge tunnel, and has great popularization value.

Description

technical field [0001] The invention relates to the technical field of flood discharge and energy dissipation methods for water conservancy projects, in particular to a flood discharge and energy dissipation method in which the exit of a flood discharge tunnel is a slope with a large height difference. Background technique [0002] China is a big hydropower country, but the development level of hydropower is not high. In recent years, the construction of high dams in my country's hydropower construction has developed rapidly. Flood discharge and energy dissipation are one of the difficulties in the design and safe operation of water conservancy and hydropower projects, especially in my country. In the southwestern alpine and canyon areas, technical problems such as complex geological conditions, high mountains and narrow valleys, and difficult hub layout are common. The selection of discharge and energy dissipation methods and the layout of discharge structures are particular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/06
CPCE02B8/06Y02E10/20
Inventor 谌伟宁熊卫红李海涛
Owner HUBEI PROVINCIAL WATER RESOURCES & HYDROPOWER PLANNING SURVEY & DESIGN INST
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