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In recent years, with the construction of large-scale public infrastructures, such as construction of traffic bridges, high-rise buildings, factories, etc., the frequency of use of piles has become more and more frequent, especially the full-casing piles have been widely used. Therefore, it is necessary to further study the characteristics of the construction of the whole casing pile. This study will focus on the full-casing construction to explore its engineering characteristics in different situations. In order to obtain the relevant problems in the practice of the whole casing pile construction technology, this study carried out a series of related cases and possible problems in practical problems. The research results show that the full casing pile has many advantages, because the drilling process has the steel casing prevents the soil from collapsing, so that the pile quality is good, and it can be applied to various geological and topography with different drilling equipment and excavation facilities, and has considerable experience in different geology and topography for practical use. For quite mature work methods. In addition, through the special case study in practice, due to the advantages of small construction space, simple tools, flexible movement, etc., the special casing geology and the lack of base space can be used to make semi-circular retaining piles. The section of the soil facility is halved, and the available area of the basement is increased. The construction speed can shorten the construction period, reduce the project cost, increase the land and project expenditure to achieve the maximum benefit.
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