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Underground powerhouse wire outgoing arrangement mode and structure

A technology of outgoing line layout and underground workshop, applied in water conservancy projects, hydroelectric power stations, industrial buildings, etc., can solve the problems of large project investment, unreasonable layout of underground workshops, and insufficient underground transportation, so as to achieve convenient and economical investment. Significant benefits and convenient construction

Active Publication Date: 2015-11-25
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a layout method and structure for underground powerhouse outlets to solve the problem that the existing underground factory building outlet layout method is not reasonable enough to cause large project investment and underground transportation is not convenient enough

Method used

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  • Underground powerhouse wire outgoing arrangement mode and structure
  • Underground powerhouse wire outgoing arrangement mode and structure
  • Underground powerhouse wire outgoing arrangement mode and structure

Examples

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Embodiment 1

[0024] Take the underground powerhouse of a hydropower station in Guizhou as an example (such as Figure 1-Figure 7 Shown): The underground powerhouse caverns are arranged in the mountain on the left bank of the dam. The main powerhouse and the main transformer tunnel 3 are arranged in parallel. The longitudinal axis of the powerhouse is N79oE, and the main transformer is arranged in the underground main transformer tunnel 3 , the excavation section of the main transformer tunnel 3 has a dimension of 83.4m×15.3m×16.2m (length×width×height), and the 220kV switch station 2 is arranged on the ground at an elevation of 605.0m above the main transformer tunnel 3, with a plane size of 80m×28m. The main transformer is connected to the 220kV bottom switch station 2 through the triangular prism excavation body 4 and the outlet shaft 1 with a 220kV dry-type high-voltage cable 48 .

[0025] Such as image 3 As shown, the height of triangular prism excavation body 4 is 13.07m, and the pl...

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Abstract

The invention discloses an underground powerhouse wire outgoing arrangement mode and structure. According to the underground powerhouse wire outgoing arrangement mode and structure, a wire outgoing vertical shaft (1) is arranged at the position, where an elevator and staircases are originally arranged, of a center control building (6) of aground switching station (2), and the space between concrete bent columns (65) at the position of the center control building (6) is increased. When the position of the wire outgoing vertical shaft (1) is far away from a side wall of a main-transformed cavern (3), a wire outgoing lower adit is used for connection. When the position of the wire outgoing vertical shaft (1) is close to the main-transformed cavern (3), the wire outgoing vertical shaft (1) moves in the excavation direction of the side boundary of the ground switching station (2) till an excavation end point at one corner of the wire outgoing vertical shaft (1) coincides with the excavated side boundary of the side wall of the main-transformed cavern (3), and rock masses between the wire outgoing vertical shaft (1) and the main-transformed cavern (3) are dug out so that a triangular prism excavated body (4) can be formed for connection. According to the underground powerhouse wire outgoing arrangement mode and structure, the wire outgoing vertical shaft is directly communicated with the main-transformed cavern and the GIS ground switching station, a wire outgoing upper adit is removed through optimization, a large amount of investment is saved, and traffic of an underground powerhouse can be more convenient and faster to use.

Description

technical field [0001] The invention relates to a layout method and structure of outlet lines of an underground powerhouse of a hydropower station, and belongs to the technical field of water conservancy and hydropower engineering. Background technique [0002] At present, the layout pattern of outgoing lines of underground powerhouses adopts the main transformer tunnel + flat tunnel for outgoing lines + vertical shaft for outgoing lines + flat tunnel for outgoing lines + ground GIS switch station when there is a gentle slope on the surface of the factory area, because the height difference between the vertical shaft for outgoing lines and the platform of the ground switch station is large (Most of them are above 50m), elevators need to be installed in the outlet shafts, and most of the ground switch stations are 5-6-story concrete frame bent structures, most of which are above 20m in height, and elevators are also required. Therefore, it is necessary to study a new type of ...

Claims

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Application Information

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IPC IPC(8): E02B9/00E04H5/02
CPCY02E10/20
Inventor 周小乾宁华晚宋静后开祥陈思聪
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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