Popis: |
From1980s to nowadays, D-B mode is widely used for its incomparable advantages. It combines design and construction into an integral whole, not only reducing owner’s burden but giving contractor more space to perform his ability. On the basis of the analysis of D-B mode’s operation process and referring to other modes’ operation mechanism, this article establishes its operation mechanism. The purpose is, by establishment of operation mechanism, to provide theoretical support for engineering and promote this mode’s development. |