| The municipal road has higher requirements on the foundation stiffness,integrity,deformation ability,The municipal road has higher requirements on the foundation stiffness,integrity,deformation ability,characteristics of municipal road subgrade for the zonal distribution of municipal road subgrade stability and differential settlement control,and has high requirements to strictly control the post construction settlement.For the soft soil subgrade,it is necessary to improve the performance of soft soil in order to meet the requirements of municipal road subgrade.Vacuum stack preloading is an economical and effective way to deal with deep soft soil subgrade.In this article,based on a coastal municipal road of deep soft soil subgrade treatment of the actual project as an example,in the summary of characteristics of municipal road subgrade soft soil characteristics and common treatment method,Vacuum stack preloading at home and abroad on the basis of the status quo,to conduct a special test for the consolidation properties of soft soil;according to the test results and theoretical calculation,Put forward the soft soil subgrade of Vacuum stack preloading;Through the construction process monitoring and treatment after the effect of testing,soil testing,the reinforcement before and after the reinforcement of the relevant indicators were analyzed,showed that the treatment effect is good,to achieve the desired effect.The research of the project can be used as a reference for similar projects. |
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