The Design of Uneven Settlement Control Scheme for Soft Soil Subgrade
Urban road subgrade construction often takes the surrounding soft soil as the main filler.Soft soil has high compressibility,large porosity ratio,rich water con-tent,which is easy to cause filled subgrade uneven set-tlement and lead to road traffic safety risk.The design of reinforcement scheme for soft soil subgrade is the key to ensure the quality of road construction.Based on the com-parison and selection of uneven settlement control schemes for soft soil filled subgrade of a road in Jiangmen City,Guangdong Province,this paper focuses on the key points of duct grouting technology scheme design,and evaluates its construction application effect.The results show that the integrity of the grouting body under the non-destruc-tive testing technology is good,and the reinforcement range meets the requirements;the settlement of the sub-grade surface is observed by the leveling instrument,the maximum settlement occurs at the center of the subgrade,and the post-construction settlement is 2.6 cm,which meets the requirements of the specification.
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