Abstract
Tokyo International Airport D Run-way Project is construction that newly establishes the fourth glide slope Tokyo International Airport(Haneda) offshore. D Run-way Project is constructed on the soft ground. It designed in expectation of a strength increase by consolidation. Therefore, it is necessary to understand the situation of the ground accurately. D Run-way Project, the strength management method by RI-CPT was adopted. In this text, the investigation management technique by RI-CPT is described. It is the one that considers the result of the examination. Tokyo International Airport D Run-way Project was completed by adopting this construction management method in a short term of the remainder of 41 months