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There are a series problems that are caused by the complex geological and various types of foundation soil of the canal during the excavation process in the first stage of the South-to-North Water Transfer Project, such as the different strength of the same rock, especially the undulating boundary of the rocks and the varying buried depth. The author made a detail research on the spatial distribution of the basic rocks and the calculation for the volume of the excavation to save the problems and calculate the excavation volume of the rocks with different strength, also the cross and vertical method were used to provide the necessary technology data and a technology support for planning and programming of project construction.

Construction technology of fair-faced concrete was successfully used in China Qingdao Zhuoting plaza project. Its No.1 and No.2 dwelling houses are high-rise buildings and their posts and external walls were constructed with fair-faced concrete. As it is the highest fair-faced concrete project in China with 99.95m in height , four different concrete strength grades from C35 to C50 on different floors,370 days construction period through different four seasons in a year, the project meets a lot of problems and challenges. In this article, some innovations and key construction technologies were studied and used which make the project be successfully completed.