Abstract
In the Tokyo International Airport (Haneda Airport), a new runway named "D-runway" was constructed from March 2007 to October 2010. Because some part of the D-runway is located in a river mouth, a hybrid structure consisted of piled pier and reclamation fill was adopted. In the reclamation section, not only the ground improvement technologies (SD, CPD and CDM) but also the new developed construction materials (pneumatic mixing cement treated soil and air-foam treated lightweight soil) were utilized. This technical report describes the outline of the execution, quality control, and maintenance plan of the D-runway structure, from a view point of geotechnical engineering.