Building method and structure of drainage ditch of road reconstruction and extension roadbed

Abstract

The invention discloses a road reconstruction and extension roadbed drainage ditch masonry method and structure, and the method comprises the steps: crushing a masonry material for road dismantling to obtain coarse aggregate, fine aggregate and fine material; mixing and stirring the coarse aggregate, cement and water to obtain a first mixture; mixing the fine aggregate, the cement, the water and the additive to obtain a second mixture; the first mixture is placed in different prefabricated drainage ditch mold plates, and side wall prefabricated blocks and base prefabricated blocks are obtained; after an original roadbed slope is treated, a drainage groove is dug; fine materials are laid on the bottom face of the drainage groove, and second mixed materials are laid on the fine materials and the side wall of the drainage groove; a base precast block and a side wall precast block are laid on the cement mortar leveling layer, and the bottom end of the side wall precast block is connected with one end of the base precast block. According to the method, road materials are dismantled, conventional cast-in-place concrete is replaced with the prefabricated drainage ditches, resource utilization of building waste is improved, meanwhile, prefabrication and standardization of building components are achieved, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of highway engineering drainage ditches, in particular to a method and structure for building drainage ditches for road reconstruction and expansion. Background technique [0002] Due to the rapid growth of traffic volume and the gradual decline of the performance of old expressways, road reconstruction and expansion will be an important practical activity of road construction in my country in the future. Compared with conventional highway engineering construction, road reconstruction and expansion involve many key technologies such as milling of original road surface, removal of protection and drainage facilities, splicing of subgrade and pavement, and reinforcement and splicing of structures such as bridges and culverts. Factors considered in the construction of reconstruction and expansion projects are more complicated, and the construction is more difficult. Also because the reconstruction and expansion ...

AI Technical Summary

Problems solved by technology

The biggest problem with this method is that it does not fully analyze the characteristics of the reconstruction and expansion road construction with the concept of drainage engineering characteristics design, and does not explore the recycling of demolished mortar blocks, concrete blocks, steel bars and other building materials. It is inconsistent with the concept of ecological civilization construction advocated at the national level, and has not formed sustainable application of resources and green road construction for energy saving and emission reduction

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