Prefabricated box culvert structure with widened top

Abstract

The invention discloses a prefabricated box culvert structure with a widened top. The structure comprises a plurality of box culvert components (2) which are sequentially spliced, each box culvert component (2) comprises a top plate and side plates at the two sides, the top surface of each top plate is a passage surface for material transportation, the two sides of the top of each box culvert component (2) are provided with widening parts (3), the size of each widening part (3) is matched with that of the corresponding box culvert component (2), the top surface of each widening part (3) is flush with the top surface of the corresponding top plate, the sum of the width value of each widening part (3) and a value of the distance between the corresponding side plates at the two sides is the width of the corresponding passage surface, and therefore the width of the passage surfaces is increased; each widening part (3) is of a wedge-shaped structure, the cross-sectional area of each wedge-shaped structure is gradually reduced from the side, close to the corresponding side plate to the other side, and therefore the bearing capability of the widening parts (3) is improved. By means of theprefabricated box culvert structure with the widened top, the passage area for material transportation can be increased, and the construction progress is ensured.

Description

technical field [0001] The invention belongs to the technical field of prefabricated box culvert structures, and more specifically relates to a prefabricated box culvert structure with a widened top. Background technique [0002] With the development of traffic construction, the box culvert system has played an increasingly important role in the process of traffic construction. The construction of the box culvert system generally adopts cast-in-place. The bottom layer is set in the excavated trench, a layer of concrete cushion is poured, and then the processed steel bars are bound on site, and the inner and outer molds are supported. The larger box culverts generally first Pouring the bottom half of the bottom plate and the side wall, then binding the upper part of the side wall and the roof reinforcement, supporting the inner and outer molds, and pouring the upper half of the side wall and the roof. After the concrete reaches the strength required by the design, the formwo...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of tunnel construction, segment transportation and mortar transportation are intersected. At the same time, the cast-in-place structures on both sides of the box culvert often cannot be poured in time. The transportation of materials needs to be completed through the top surface of the box culvert, which is limited by the width of the top surface of the box culvert, and the speed of material transportation will be affected, thereby affecting the construction progress

[0005] The existing solution is to increase the pouring speed of the cast-in-place structure on both sides of the box culvert by adding molds for the cast-in-place structure and increase the passage space. Solve the problem of limited material transportation speed

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