Composite Stratigraphic Ultra Thick Deep Underground Continuous Wall Construction Technology

This study combined with connect Hong Kong futian station engineering of passenger dedicated line from the complex stratum medium according to the construction characteristics of super deep underground rail station, through the analysis of recent super-tall buildings super deep foundation pit of environmental protection and safety control requirements, studied the project adopts the background of new technology, formed a composite formation Chinese super ultra thick deep underground continuous wall construction technology and methods;With hard rock strata of the underground continuous wall socketed depth, the characteristics of super thick wall body, formed into a groove formation matching analysis and evaluation technology.According to Mr Fukuda station super ultra thick deep underground continuous wall project, expected innovation points are as follows:(1) Through the whole process of underground continuous wall construction process analysis, has been clear about the key working procedure and quality control points, summarizes a set of suitable for complex stratigraphic ultra thick deep underground continuous wall construction technology system.(2) For embedded rock hardness is different, is proposed based on the hardness of bedrock hierarchies and into a groove technology formation adaptability analysis evaluation method, the method of similar deep ultra thickness of underground continuous wall into a groove technology comparison has a certain reference significance.