Performance of Soil Cement Column Wall for a Tunnel Construction in Bangkok Soft Clay

Abstract

This paper research presents the performance of soil cement column wall (SCC wall) associated with base stability improvement by cross wall in soft clay. The field observation on the behavior of the SCC wall for a tunnel construction was extremely close to the existing structure in Bangkok subsoils, presented. The behavior of wall is observed by measurement of wall moments during construction. The research studied the behavior of wall with cross wall compared to SCC wall without cross wall by 3D finite element method. The results show that the SCC wall associated with base stability improvement by cross wall provides low lateral movement and deep excavation in soft clay significantly.