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Karst funnel reservoir, pit type flood releasing structure thereof and construction method of pit type flood releasing structure

A technology for building and flood discharge, applied in construction, water conservancy engineering, marine engineering, etc., can solve the problems of insufficient surface water resources, affecting economic and social development, etc., and achieve small construction volume, good safety, and good economy. Effect

Inactive Publication Date: 2017-12-22
CHONGQING JIAOTONG UNIVERSITY
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  • Claims
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Problems solved by technology

The main karst landform areas in my country are also areas rich in atmospheric precipitation. However, due to poor surface water storage conditions, most of the precipitation enters the underground karst system through karst funnels, which makes the surface water resources in karst landform areas not rich. There are even prominent seasonal water shortages, seriously affecting local economic and social development

Method used

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  • Karst funnel reservoir, pit type flood releasing structure thereof and construction method of pit type flood releasing structure
  • Karst funnel reservoir, pit type flood releasing structure thereof and construction method of pit type flood releasing structure
  • Karst funnel reservoir, pit type flood releasing structure thereof and construction method of pit type flood releasing structure

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0026] like figure 1 Shown is a schematic structural view of an embodiment of the karst funnel reservoir of the present invention. The karst funnel reservoir of the present embodiment includes a blocking building 2 for blocking the natural drainage channel of the karst funnel, and is formed between the blocking building 2 and the surrounding rock mass 1 of the karst funnel on its upper part for storing water and Water storage area 3 treated with anti-seepage. The water storage area 3 is provided with a water intake building for water intake, an emptying building for emptying the water storage area 3 and a well type flood discharge structure 4 for flood discharge. The well-type f...

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Abstract

The invention discloses a pit type flood releasing structure. The pit type flood releasing structure comprises a vertical shaft arranged in surrounding rock of a karst funnel; an overflow weir is arranged on the top of the vertical shaft; a flood releasing tunnel is formed below the vertical shaft; and the water inlet end of the upper portion of the flood releasing tunnel communicates with the vertical shaft, and the water outlet end of the lower portion of the flood releasing tunnel communicates with a natural drainage channel of the karst funnel. The invention further discloses a karst funnel reservoir and a construction method of the pit type flood releasing structure. According to the pit type flood releasing structure, flood releasing water can enter from the overflow weir, flows through the vertical shaft and the flood releasing tunnel and is drained through the natural drainage channel at the bottom of the karst funnel; and the scale of the pit type flood releasing structure is limited, and the pit type flood releasing structure has the advantages of low project construction quantity and good economical efficiency. In addition, the vertical shaft does not intersect with a blocking structure, the influence of the pit type flood releasing structure on the blocking structure during construction and flood releasing is limited, and safety is good.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, in particular to a karst funnel reservoir and its well-type flood discharge structure and construction method. Background technique [0002] my country's karst landforms have a wide distribution and a large area, mainly in areas where carbonate rocks are exposed, covering an area of ​​about 910,000 to 1,300,000 square kilometers. Among them, Guangxi, Guizhou and eastern Yunnan occupy the largest area and are one of the largest karst landform areas in the world. The main karst landform areas in my country are also areas rich in atmospheric precipitation. However, due to poor surface water storage conditions, most of the precipitation enters the underground karst system through karst funnels, which makes the surface water resources in karst landform areas not rich. There is even a prominent seasonal water shortage problem, which seriously affects the local economic and social ...

Claims

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Application Information

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IPC IPC(8): E02B8/06E02B3/00
CPCE02B3/00E02B8/06Y02A10/11
Inventor 王俊杰李施衡张慧萍杨洋刘明维梁越
Owner CHONGQING JIAOTONG UNIVERSITY
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