Express highwey construction technology for heavy loading vehicle running

Abstract

This invention relates to a construction technique of the highway used to run carrying full car. At present, the tonnage of these cars on the highway ranges from 30-50 tons, but some of the freight cars exceed 100 tons, and some highways cannot afford such heavy load; in this invention, the construction of the roadbed, the formation, the wearing course, antiskid layer, and surface construction firstly adopt agitating slaked lime and earth mass, laminar lamination, dabbling flocculant to strengthen welding ability of the earth mass; adopt bedload and laying bed course and pouring serosity of BR-C; prepare C80-C100 concrete bearing bed by common cement; add the mixture of rubber particles, little carpolites, and adhesion agent to the asphalt, lay the wearing course, antiskid layer and surface layer in order to improve the expansion, shrinking, and adhesion quality of the different layers of the asphalt mixture, resist the influences of temperature changes and improve its bearing ability.

Description

technical field [0001] Highway, soil road bed foundation, gravel cushion, high-strength concrete, road surface construction field. technical background [0002] At present, the construction mileage of expressways is increasing rapidly, but the tonnage of vehicles passing through is hovering at 30-50 tons. At present, the tonnage of vehicle loads, some vehicles have a carrying capacity of more than 100 tons, and the quality of some expressways built is lagging behind, that is, it is difficult to carry heavy loads, and major accidents of roads and bridges have occurred frequently. The reason is that the C30-C40 grade of roadbed, subgrade, and cushion concrete cannot meet the heavy load of a 100-ton vehicle. Contents of the invention [0003] In the construction of the road bed, subgrade, cushion and surface of the expressway, firstly improve the solidification capacity of the soil; use broken stones and lay the cushion and grout; use ordinary cement to prepare the C80-C100 ...

AI Technical Summary

Problems solved by technology

At present, the tonnage of vehicle load, some vehicles have a carrying capacity of more than 100 tons, and the quality of some expressways built is lagging behind, that is, it is difficult to carry heavy loads, and major accidents of roads and bridges have occurred frequently

The reason is that the C30-C40 grade of roadbed, subgrade, and cushion concrete cannot meet the requirements of heavy loads for 100-ton vehicles.