Search & filter
Search & filter
Abstract: Significant cracks on precast reinforced concrete segmental linings of bored tunnel were observed during a regular visual inspection of a rail tunnel. Investigations were carried out to establish the causes of tunnel damage as well as whether the cracks were active. Investigations revealed that the cracks on the segments were due to the consolidation of soft marine clay layer of the Kallang...
Abstract: Deep excavations in high permeable ground conditions have always been challenging in underground construction. The case studies herein have deep excavations situated along the major arterial roads and next residential blocks. The Earth Retaining and Stabilizing Structures (ERSS) scheme adopted was diaphragm wall with multiple-levels of steel struts. The geological profile along the longitudinal...