Dynamical Design And Application Research Of Informatic Construction In Deep Excavation Engineering

With the continual and rapid development of national economy, there has been and will be more and more projects of deep excavation engineering. The excavation engineering is already taken attention to as a professional subject by the engineers, however, because it is a all-around engineering which involves several different subjects, the basic theory, design and calculation methods and construction technique need to be investigated further in worldwide all the same. The dissertation introduces the development actuality of excavation engineering at home and overseas, analyses the development status of its basic theory and researchful field in succession, and from the point of engineering application the dynamic design and informatic construction are studied and researched. Some available conclusions are achieved.Firstly, main problem of design and construction in deep excavation engineering is discussed, the reason of main problem and the result caused by the main problem are analyzed, and according to theory and technique now the article provide if the relation of management, exploration, design, construction and supervision is coordinated well, the dangerous excavation engineering will be greatly reduced. A reasonable and effective measure that is dynamical design for construction process can solve this problem.Secondly on the basis of pre-researchers' achievements, combining with engineering practice and experiences the suitability of soil pressure and the applicability limitation of calculation theory and methods are discussed in this article.Thirdly the reason of deep excavation engineering accident is analyzed and synthesized, the dynamical design method is proposed. The author suggests implementing the dynamical design methods effectively need to obtain more accurate soil mechanical parameters. It is discussed the present situation, methods and influencing factor for the dynamical selection of soil mechanical parameters.Fourth aiming at informatizatic construction the significance and necessity of informatizatic construction are discussed. Monitoring is main measure of informatizatic construction, and according to the purpose of monitoring, the level of deep excavation engineering and the condition of adjacent structure its content is different.Fifth combining with an example of xiangzhang deep excavation engineering accident it is discussed the experience that the accident does with applying the method of dynamical design for construction process. The engineering practice indicates this measure is of some meanings of theory and engineering application.