Spiral steel piles in the application of the photovoltaic power station on the ground

Photovoltaic stents in the ground station, the basis of the basic use of reinforced concrete filling pile foundation, rarely use spiral steel pile foundation, to introduce below small make up for all the familiar stranger, photovoltaic stents based selection for everybody doing

at present, the ground station foundation is reinforced concrete filling pile foundation basically photovoltaic stents, spiral steel pile foundation is rarely used. The following small series will introduce the 'familiar stranger', for your reference when choosing photovoltaic support base. A, spiral steel pile type spiral steel pile is a kind of complex geometrical shape profiled pile, by a center of steel shaft and number of spiral vane. According to the arrangement of the blade, generally divided into layered continuous blade spiral blade spiral steel pile and steel pile. Second, spiral steel pile on the advantages of traditional photovoltaic supported reinforced concrete filling pile foundation earthwork excavation, environmental damage, long time limit for a project, the demand is high and the difficulty of demolition, site faults, screw pile has the following advantages: ( 1) Construction speed and good economy. Spiral steel pile generally by special machine for construction ( As shown in the figure below) 。 A spiral steel pile can be finished in a few minutes, the pile can be used immediately after the construction. There is no concrete construction and maintenance, saving the individual consumption based staff wages. In addition, the construction equipment maneuverability is strong, access speed, low cost, can be reached any difficult terrain, or in the narrow empty within the scope of construction. ( 2) Convenient for quality control. Spiral steel pile all production in the factory, to avoid the cast-in-place pile of reinforced concrete for construction personnel caused by the different levels, uneven quality of foundation treatment. ( 3) Environment friendly and recyclability. Don't need to development of earth, steel pile construction directly to tighten, basic no vibration and noise, ecological destruction is minimal. Steel pile can reverse pull out after use, will not leave any underground obstacles, field can be restored. ( 4) Installation of photovoltaic modules stents adjustable high. At present, the ground station is basically a mountain photovoltaic power station, the terrain is not smooth. In order to keep the pv module has the best Angle, request support convenient installation, strong adjustability. Because of the spiral steel pile is directly connected to the bracket, the adjustable embedded bolt is greater than the concrete foundation, reduce degree of difficulty of installing the pv stents. 3. Spiral steel pile the problems existing in the existing problems of the spiral steel pile is lack of customized pricing methods, such as steel, warranty and after-sales service, etc. Spiral steel piles, there is no clear requirements, service quality is uneven. In addition, the screw pile in pricing method, steel, warranty, etc have different 'algorithm'. There is a big difference between, screw pile manufacturers. Lack of this kind of customized lead to difficult to ensure that the quality of the bored pile. In addition, the service life of the photovoltaic power station in the general design for 25 years, but the spiral steel pile corrosion can guarantee 25 years is still unable to verify. If there is no guarantee that, during the operation will be in pile, increasing operating costs. Four, spiral steel pile connected spiral steel pile can be conveniently through bolts, flange and other forms with a variety of upper bracket connection, highly scalable to adjust the post. Spiral steel pile flange is made from a certain thickness of the steel plate, welding steel shaft with center into one. Connect with bolt hole on flange plate, easy to install with installation machine head and the upper bracket connection. Some pile type without flange plate, but the upper left a bolt hole. When installation, bolt by bolt hole connected to the power head. After installation, they can also be used to connect the bracket.