Up-down separating type underground excavation station construction passageway structure provided with mucking transport equipment and construction method

Abstract

The invention discloses an up-down separating type underground excavation station construction passageway structure provided with mucking transport equipment and a construction method. The structure comprises an upper construction passageway, a lower construction passageway, a plurality of muck passageways and the mucking transport equipment, up-down separating type construction passageways are adopted, the upper construction passageway is located above the lower construction passageway, the upper construction passageway and the lower construction passageway are horizontal passageways, reserved with a certain distance in the vertical direction and separated by undisturbed soil masses, and bodies of the two passageways are mutually unconnected and respectively connected to a construction shaft. The upper construction passageway and the lower construction passageway are communicated by the aid of the muck passageways arranged between the same, the muck passageways are arranged at intervals along the horizontal direction, and the bottom of the lower construction passage way is provided with the mucking transport equipment. By the structure and the method, influences of underground excavation station construction on surroundings can be reduced, risk of underground excavation station construction is lowered, underground excavation station in-cave operating environment is improved, mechanical construction degree and working efficiency are improved, unnecessary excavation, fill, primary support structure erecting and detaching are avoided, and engineering investment is saved.

Description

technical field [0001] The invention relates to a construction passage structure and a construction method of a submerged station in an urban rail transit project. Background technique [0002] Urban rail transit projects are generally composed of two parts: stations and sections. Subway sections are mostly constructed using the shield method and have a high degree of mechanization, while subway stations are basically located in the center of the city, with complex surrounding environments such as underground pipelines, buildings or structures, and ground transportation. The underground excavation method is mostly used for construction, with low degree of mechanization, poor working environment and high construction risk. [0003] At present, underground excavation stations are generally constructed using the "hole pile method". The net width of the construction passage is generally 4.0m, the excavation height is generally 17.5~19.0m, and the thickness of the initial support...

AI Technical Summary

Problems solved by technology

The construction passages on each floor are mixed passages for pedestrians, feeding materials and discharging ballast. There are drainage ditches, monitoring points, suspension cable equipment, etc. on the side of the passages. Tricycle drivers frequently meet, avoid, wait and pass in the passages, and the work efficiency is low. And improper management and operation may lead to safety accidents

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