Method Of Composing Special Safety Scheme For Deep Foundation Pit Bracing Projects And Software Development

Secure production is a long-term basic national policy, which protects laborers' safety and develops productivity. It is fundamental to maintain stabilization and solidarity of society, and to accelerate the steady and health development of economy, as well as an important symbol of social progress and civilization. In order to enhance the safety construction project management, prevent the building construction safety incident and safeguard the person and the property safety, according to Regulation for safety of construction project and Measure of scheme formation and supervision for safety of High-risk construction project (ministry of construction 2004, No.213), the special scheme of safety of construction project must be established for High-risk construction project.The deep foundation pit bracing which is easily to have accidents, usually belongs to temporary construction, and its safety margin is small. It has many security factors and when the accidents happen, its consequence is always serious and loses are great. So far, construction enterprises have established special scheme of safety of construction project, but they don't have the guiding principle and the establishment method, so the special scheme of safety of construction project haven't played the proper role . Therefore, researches on method of composing special safety scheme for deep foundation excavation projects are done in the paper.Firstly, the characteristics and problems are analyzed, and the problems of composing special safety scheme for deep foundation excavation project are researched . Secondly , principle, influencing factors and method of the selection of design scheme for deep foundation pit are summarized , and merits, shortcomings and applicable scopes of some bracing structure types are analyzed. According to the system analysis method, method of identificate the risk sources are researched and it is the premise and foundation to make a special scheme for high-risk construction project . At last, construct the computation models and take Visual Basic 6.0 as technology platform and Access 2003 as database support. Then software for safety of the deep foundation excavation projects is completed, which realizes the man-machine interaction and automatic production of special scheme of safety of construction project , improves the efficiency of writing scheme information for safety of high-risk construction project greatly.