Rainy season wet soft roadbed filling construction method

Abstract

The invention discloses a rainy season wet soft roadbed filling construction method. The method comprises the following steps of S1, soil filling water content testing and quicklime doping amount design; S2, test section construction; S3, material preparation; S4, lower bearing layer treatment; S5, measurement and lofting; S6, paving; S7, mixing; S8, leveling and light pressing; S9, rolling; S10,maintenance; and S11, later inspection. According to the rainy season wet soft roadbed filling construction method, during the construction, the quality of the subgrade filling can be ensured, the phenomena of subgrade deformation, subgrade bed frost boiling and mud pouring can be reduced, the roadbed construction efficiency can be accelerated, the construction period and cost can be saved, and the construction quality and efficiency of rainy season roadbeds are guaranteed; and meanwhile, the roadbed filling quality is guaranteed, the roadbed filling construction progress is accelerated, the construction site personnel and machinery idling phenomenon is reduced, and the time for waiting for passing along the vehicles is reduced.

Description

technical field [0001] The invention relates to a roadbed filling construction method, in particular to a wet and soft roadbed filling construction method in the rainy season, which is mainly used for the construction of road bases of various levels, railway roadbeds, and small airport runway cushions, and belongs to roadbed construction technology field. Background technique [0002] Generally speaking, the quality and water content of the filling soil are relatively high in the filling construction of the highway subgrade. If the filling soil is soaked by rainfall or the water content is too high, it will cause the filling subgrade to have slurry, insufficient strength, and excessive deflection value. Quality issues. Therefore, how to reduce the impact of rainfall on subgrade construction has become an important research topic in highway engineering construction. [0003] Roadbed construction is carried out in the rainy season, and rainfall will seriously affect the cons...

AI Technical Summary

Problems solved by technology

However, in areas where the climate is rainy and the rainy season is long, it is obviously not possible to reduce the moisture content by drying. Sometimes it rains before rolling, and we can only wait for sunny days. The construction period is long, which seriously affects the construction progress; the number of mechanical nests is also greatly increased. project cost

[0006] 2. The optimal moisture content is difficult to grasp:

[0007] In the process of over-wet soil being turned over, it is difficult to accurately grasp the change of moisture content in order to achieve the optimum moisture content state. Often due to excessive or insufficient turning, the moisture content of the filling is low or high, resulting in the filling being not compacted and the subgrade appearing. Quality issues

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