Method for processing roadbed by means of matching of waste tire piece bodies and reinforced soil

Abstract

The invention discloses a method for processing a roadbed by means of matching of waste tire piece bodies and reinforced soil. The method includes the steps that (1) a waste tire is recycled and cut into pieces, soil used for the actual engineering roadbed is sampled, the recycled waste tire pieces are mixed into the soil, a triaxial compression experiment for solidification water discharging is carried out, an optimum ratio is determined according to the result of shearing strength, and accordingly the soil of the roadbed is improved; (2) geogrid is installed on a flat and compressed field, the stressed direction of the geogrid is vertical to the axis direction of a road embankment, the geogrid is pressed and fixed through plug pins, soil and stones, and the geogrid is under a tightened and stressed state in soil; (3) after the geogrid is laid and positioned, the geogrid is timely covered with soil, and the time when the geogrid is naked cannot exceed 48 hours; (4) in an reinforced soil project, water discharging must be well processed, and when necessary, geotechnical cloth should be arranged. The method can improve the water permeable performance of the roadbed; the shear-resistance is improved due to the fact that soil inner friction angles are increased; soil self-weight is reduced, the problem that the roadbed subsides unevenly is reduced, retaining wall soil pressure is reduced, and the structure of the roadbed is optimized.

Description

technical field [0001] The invention relates to a civil engineering technology, in particular to a method for treating roadbeds by using scrap tires combined with reinforcement. Background technique [0002] At present, with the vigorous development of the automobile industry, the pollution of waste tires is increasingly threatening the environment in which human beings live. As one of the largest tire producing and consuming countries, the number of scrapped tires in my country reaches 250 million every year. Its traditional treatment methods such as: incineration, landfill, stockpiling, and indigenous oil refining have not only caused a lot of waste of resources, but also brought many social problems such as environmental pollution, fire safety, and disease transmission. [0003] On the other hand, in road engineering, the roadbed exposed to the atmosphere is subjected to the joint action of soil weight, traffic load and various accidental factors, resulting in the settle...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for treating roadbed with waste tires combined with reinforcement, which can improve the water permeability of the roadbed; increase the shear strength by increasing the internal friction angle of the soil ; At the same time, the self-weight of the soil is reduced, so that the problem of uneven settlement of the foundation is alleviated, and at the same time, the soil pressure of the retaining wall is reduced, and the subgrade structure is optimized

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