Installation process of ground screw

　　Ground screw has special tightening equipment for construction. The main construction equipment includes crawler type tightening machine, electric type tightening machine and hydraulic type tightening machine. Crawler type tightening machine is suitable for use in large projects, such as solar photovoltaic support foundation system; Electric screwing machine and hydraulic screwing machine can be used in single and small foundation systems, such as the foundation of bus stop sign, high-speed indicator sign, etc. This paper mainly introduces the installation process of electric tightening machine.

　　1. Preparations before construction. Before construction and installation, it is necessary to confirm that all the preparations are complete. The specific preparations are as follows:

　　(1) Ground screw: according to the construction requirements, prepare the correct ground screw specifications and quantity.

　　(2) Installation equipment: according to the specifications and soil properties of the ground screws to be installed, select the electric tightening machine with appropriate specifications.

　　(3) Power source and connecting cable: the generator set, socket, cable, etc. matched with the electric tightening machine. In the area with convenient stringing, it is not necessary to prepare the generator set, but only the corresponding socket.

　　(4) Work required for construction and installation

　　One set of tool box: including Allen wrench, tape measure, special level gauge, marking pen, spare wire, string, horizontal pipe, clip, etc.

　　Ground screw and installation equipment

　　Ground screw and installation equipment

　　2 basic construction process

　　(1) According to the requirements of construction drawings, layout and setting out, determine the installation position of each ground screw and mark.

　　(2) Inspect and confirm whether the position mark is correct according to the drawing size requirements.

　　(3) The construction shall be carried out according to the operation specification of electric tightening machine.

　　(4) Clean the construction site for the construction of subsequent processes.

　　The equipment needed for ground screw installation is simple and easy to operate. After simple training, two people can operate independently. The operation cycle is short and the dependence on water resources is small. After galvanizing the surface, it can meet the requirements of corrosion resistance for more than 25 years. It has no pollution to the environment. It is a green foundation system to replace the cement-based foundation.