Temporary pavement blanket structure for super-shallow buried subsurface-excavated underground engineering, and construction method thereof

Abstract

The invention relates to a temporary pavement blanket structure for a super-shallow buried subsurface-excavated underground engineering, and a construction method of the temporary pavement blanket structure. The temporary pavement blanket structure mainly comprises a main blanket structure, rubber pads, a slope ramp blanket structure, back-pressure steel plate pavement structures and spikes, wherein the main blanket structure is formed by welding a plurality of standard sleeve parts of the main blanket structure; each standard sleeve part of the main blanket structure is formed by welding a plurality of bottom lacing bar plates, a plurality of pieces of middle joist steel and a top printing steel plate; the slope ramp blanket structure is formed by welding a plurality of standard sleeve parts of the slope ramp blanket structure; each standard sleeve part of the slope ramp blanket structure is formed by welding a bottom lacing bar plate, a piece of middle slant variable height joist steel and a top printing steel plate; the rubber pads are fully paved under the temporary pavement blanket structure; and the two back-pressure steel plate pavement structures are respectively arranged at the positions where the slope ramp blanket structure intersects the two sides of a pavement. A reversed-edge construction method is adopted in construction. The temporary pavement blanket structure and the construction method of the temporary pavement blanket structure are simple in structure, convenient and fast in construction, less in influence on the ground transportation and remarkable in the effect of deloading the underground engineering.

Description

technical field [0001] The invention relates to a temporary pavement pavement structure laid on urban roads, in particular to a temporary pavement pavement structure and a construction method for ultra-shallow buried excavation underground projects. Background technique [0002] In the construction of underground roads under shallow buried underground excavation, the method of advanced support and initial support is often used to reinforce the surrounding rock of the underground project, especially the top surrounding rock, to keep it stable without excessive deformation, which can Bear the weight of the soil above and the load of the road vehicle. However, due to the adverse effects of factors such as poor rock and soil conditions, thin covering soil, and many underground pipelines, advance support and initial support cannot be effectively implemented, or the bearing capacity of the reinforced strata is still not enough to resist the upper stratum and the load. Cause road ...

AI Technical Summary

Problems solved by technology

However, due to the limited thickness and low bending stiffness, the role of diffusion to reduce the load is limited. According to the analysis of the principles of material mechanics, simply increasing the thickness of the steel plate has little effect

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