Application of Foamed Soil in Widening Project of Limited Expressway Subgrade

Abstract

Abstract Lightweight foamed soil has the advantages of lightness, adjustable density and strength, low elastic shock absorption, good workability and environmental protection, and its mechanical properties can meet engineering needs, and it can effectively reduce the uneven settlement of the widened roadbed. Combined with the reconstruction and expansion project of an expressway, this article introduces the settlement monitoring and horizontal displacement monitoring of lightweight foamed embankment on-site, which provides a new way for the highway subgrade widening project.