Highway-railway combined construction underground station structure and construction method thereof

Abstract

The invention relates to a highway-railway combined construction underground station structure. The highway-railway combined construction underground station structure comprises a plurality of shieldsegments, wherein concrete linings are arranged in the shield segments; underground station spaces are formed in the concrete linings; top plates, underground second-layer plates, underground third-layer plates and underground fourth-layer plates are arranged in the concrete linings; the underground station spaces are divided into highway pipeline layers, municipal highway layers, subway station hall layers, subway station platform layers and comprehensive bottom layers, and brackets are arranged on the bottom sides of the top plates, the underground second-layer plates and the underground third-layer plates of the concrete linings; the municipal highway layers comprise highways and evacuation passages, first partition walls are arranged between the evacuation passages and the highways, and a plurality of escape doors are formed in the first partition walls; the subway station platform layers comprise prefabricated platforms and subway tracks, platform cast-in-place layers are arrangedon the prefabricated platforms, and prefabricated air ducts are formed in the bottoms of the underground third-layer plates; and prefabricated box-shaped frames are arranged in the comprehensive bottom layers. The invention further relates to a construction method of the highway-railway combined construction underground station structure. The construction method comprises seven steps. According to the highway-railway combined construction underground station structure and the construction method thereof, the problem of underground excavation construction of underground stations under complexenvironmental conditions can be solved.

Description

technical field [0001] The invention relates to the technical field of underground engineering, in particular to an underground station structure and a construction method of a road-rail joint construction. Background technique [0002] At present, underground stations generally adopt box-type frames, and the construction methods generally include open-cut method (cover-excavation method) and underground excavation method. Mining underground excavation is greatly affected by geological conditions, low degree of mechanization, manual excavation and construction, high risk, low quality, and common water leakage; open excavation method (cover excavation method), requires open large excavation , under special environmental conditions (underpassing main roads, rivers, mountains, buildings, etc.), traffic relief, pipeline relocation, land acquisition, river and mountain relocation, etc., the project volume and coordination are huge, the investment is quite high, and the implementa...

AI Technical Summary

Problems solved by technology

Mining underground excavation is greatly affected by geological conditions, low degree of mechanization, manual excavation and construction, high risk, low quality, and common water leakage; open excavation method (cover excavation method), requires open large excavation , under special environmental conditions (underpassing main roads, rivers, mountains, buildings, etc.), traffic relief, pipeline relocation, land acquisition, river and mountain relocation, etc., the project volume and coordination are huge, the investment is quite high, and the implementation is difficult huge

[0003] At the same time, the existing municipal roads, subway stations, and municipal pipe networks are generally designed with separate structures, which results in independent planning, design, construction and renovation, lack of overall coordination and overall planning, and lack of scientific planning. The contradiction between each other causes unnecessary project abandonment, which is contrary to the concept of energy saving, environmental protection and green construction

[0004] In addition, the evacuation capacity of existing safety facilities in underground engineering needs to be improved, the risk of accidents needs to be reduced, and the drainage efficiency needs to be improved

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