Working principle of screw pile

　　First of all, two luffing hydraulic cylinders control the take-off and landing of the screw pile column. The drilling system includes power head and drilling tool. The output shaft and screw drilling tool of power head are hollow type. The pile driver uses long screw to make hole, which can pump concrete or mud] through the center pipe of drill pipe to carry out the construction of concrete pile, that is, it can be completed by one drilling machine at a time, it can also be used for dry drilling, screw pile grouting replacement, deep mixing and other construction methods after changing the drilling tool There are two screw pile production lines

　　Secondly, the self-developed multiple sets of pipe shrinking mold can meet the traditional manual welding of most of the specifications of spiral ground pile. The welding quality is very unstable, and it is impossible to form a unified welding detection control standard. During the installation process, the spiral ground pile is installed by a special pile driving machine, and the positioning of a spiral ground pile foundation can be completed by a short installation The project of pile foundation can complete the whole project installation in a short time. It must not only meet the theoretical design, but also do the load test on site to ensure that it meets the requirements of the combination of theory and practice.