Underground structure internal transportation system based on under-plate sliding groovesand construction method of underground structure internal transportation system

Abstract

The invention relates to an underground structure internal transportation system based on under-plate sliding grooves and a construction method of the underground structure internal transportation system. Criss-crossed downward overturning beams are arranged at the bottoms of a structural top plate and a structural middle plate, pre-embedded sliding grooves are formed in the beam bottoms of the downward overturning beams, T-shaped anchor bolts can be conveniently fixed into the sliding grooves, friction-free sliding between the T-shaped anchor bolts and the sliding grooves is realized by usingballs, and the T-shaped anchor bolts provide anchorage points required by material transportation in a station. According to the underground structure internal transportation system and the construction method, the pre-embedded sliding grooves in the downward overturning beams of an under-plate structure and the T-shaped anchor bolts form a stress system, the requirements of material transportation in a foundation pit cover-excavation area are met, efficient transportation of various materials in the period of foundation pit excavation and main structure pouring is realized based on a foundation pitopen excavation part gantry crane and a cover-excavation part structure under-plate transportation system, the conflict between a material transportation path in the station and the supportingspace in a foundation pit in the period of regular foundation pit excavation and main structure pouring is effectively avoided, the construction efficiency of underground engineering can be significantly improved, the time limit and project investment are saved, and reference can be provided for underground structure construction.

Description

technical field [0001] The invention belongs to the technical field of underground engineering, and in particular relates to an internal transportation system and construction method of an underground structure based on a slab chute. Background technique [0002] With the rapid development of the economy, in order to guide the rational layout and orderly development of the city, make full use of underground resources to provide a broad extension space for urban development, in recent years, the underground space has gradually developed in the direction of large buried depth and large space. In urban areas, due to the needs of traffic and people’s daily life, foundation pit projects often need to be partially covered and excavated in order to restore road traffic as soon as possible and minimize the time and degree of impact of the project on the surrounding area. Therefore, during the development of underground space How to efficiently and quickly complete the entry and exit...

AI Technical Summary

Problems solved by technology

The transportation efficiency of earthwork transportation and various construction materials is directly related to whether the scheduled project planning can be successfully realized, and it is related to the project cost. The transportation mode of simply relying on the gantry crane above the foundation pit is inefficient and will cause huge safety hazards and investment waste.

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