A prefabricated jacking box culvert with steel edge

Abstract

The invention discloses a prefabricated jacking box culvert provided with steel blade corners. The prefabricated jacking box culvert comprises a box culvert main body structure, the steel blade corners and a prefabricated bottom plate flange plate, wherein the box culvert main body structure comprises a bottom plate, a top plate and a web plate and is connected with the steel blade corners and the prefabricated bottom plate flange plate by using high-strength bolts. The box culvert main body structure, the steel blade corners and the prefabricated bottom plate flange plate are all prefabricated by a factory and are assembled on site, so the construction progress can be quickened and the construction period can be shortened. Meanwhile, the contact area of the box culvert main body structure and a soil body is increased, pressure stressed by the soil body is reduced, the settlement of the box culvert main body structure is effectively reduced, and head embedding in a jacking process of the box culvert main body structure is avoided. Besides, the jacking direction can be adjusted by changing the soil cutting direction of the steel blade corners to guarantee correct positioning of the box culvert main body structure. Thus, a new technological choice with superior performance is provided for the box culvert jacking construction, the box culvert is to be widely applied with the prosperous development of traffic engineering, and obvious social and economic benefits are produced.

Description

technical field [0001] The invention belongs to the field of level crossing construction, and relates to a prefabricated and assembled jack-in box culvert provided with steel bezels. Background technique [0002] In recent years, my country's modernization construction has developed rapidly, and the scale of cities is also expanding. But at the same time, the construction of most urban infrastructure has not kept up with the development of the city in time. The phenomenon of traffic congestion and congestion has become one of the symbolic phenomena of most cities, and the urban economic development has also been seriously affected and restricted. Among them, a large number of railway and highway level crossings in many cities have become "bottlenecks" one by one, which is an important cause of urban traffic congestion. At the same time, due to the substantial increase in the density of trains after the speed increase, a large number of safety hazards are caused at highway a...

AI Technical Summary

Problems solved by technology

[0006] Technical problem: In order to overcome the problems of subsidence, "heading" phenomenon and jacking direction control problems that often occur in the existing jacking box culvert under the condition of weak foundation bearing capacity, the present invention provides a box culvert that can greatly reduce the The prefabricated jacking box culvert with steel edge angle is set to control the jacking direction of the box culvert and ensure the final and accurate positioning of the box culvert.

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