Underground powerhouse wire outgoing arrangement mode and structure

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 ...

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

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