Suspension device and method for large-span ultrahigh-voltage electric power pipe ditch in subway station foundation pit

Abstract

The invention discloses a suspension device and method for a large-span ultrahigh-voltage electric power pipe ditch in a subway station foundation pit. The device comprises a steel structure truss connected with the electric power pipe ditch, wherein the two ends of the steel structure truss extend into the electric power pipe ditch, a plurality of lattice supports are arranged in the direction of the steel structure truss, the lattice supports make contact with the lower end of the steel structure truss, the lower end of the lattice support is fixedly connected with the ground foundation of the foundation pit, and a cable is placed in the electric power pipe ditch and the steel structure truss. The construction method comprises the steps of cable protection, pipe ditch dismantling, truss installation and restoration after the foundation pit is completed, and the problem that station construction is affected due to the fact that the electric power pipe ditch cannot be relocated in subway station construction, or the top sealing construction period of the station is influenced by long relocation and relocation period and high cost can be well solved.

Description

technical field [0001] The invention relates to the technical field of urban rail transit and comprehensive pipe gallery construction, in particular to a suspension device and method for a large-span ultra-high voltage power pipe trench in a foundation pit of a subway station. Background technique [0002] The subway projects in various cities in my country generally radiate from the existing urban area to the suburbs. Most of the stations are located under the main roads of the city. Various underground pipelines such as urban rainwater, natural gas, water supply, communication, and electricity are crisscrossed. All kinds of pipelines within the construction scope should be permanently relocated or temporarily relocated to meet the construction conditions of the subway structure. [0003] The domestic urban power supply network is mainly composed of 330kV, 110kV, 10kV and other substations at various levels. The power pipe trench in the city is generally laid with 10kV, 110k...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a large-span ultra-high voltage power pipe ditch suspension device and method in the foundation pit of a subway station. The overall cable suspension method has significant advantages in terms of construction period and economy, and does not affect the normal use of cables and the normal construction of foundation pits

Images