Pile Driving: Technology And Cost Of Pile Foundations
Pile driving as the best way to build a pile foundation
pile foundation
Piles – a structural element of the foundation, transferring loads from the structure directly to the bearing layers of the soil. The lion’s share of piles used in industrial and civil construction are driven reinforced concrete prismatic piles with a section of 300×300 and 350×350.Heads (tops) of piles are united by a single structure (beam, slab, etc.).) allowing these piles to work together. This structure, located on the surface of the earth, is called a grillage.
Types of piles
Piles are divided into 2 types according to the principle of their work: piles-racks and hanging piles. Rack piles work due to the fact that their end is supported by hard rock. Hanging piles work due to the forces of friction of the side surface of the piles on the ground. In Moscow and the Moscow Region, almost all piles are hanging.
pile driving
Pile driving is the cheapest and fastest way to drive piles into the ground. Driving is carried out by pile drivers (copra) equipped with special hammers. According to the principle of the device, these hammers are divided into diesel hammers and hydraulic hammers. The impact part of these hammers weighing from 1.5 to 9 tons is lowered onto the head of the pile installed in the design position and literally drives it into the ground. The pile driving technology also has certain disadvantages, such as noise and vibration effects on nearby buildings. Therefore, driving is not carried out in areas with dense urban development. But in the case of a relative distance of 150 meters or more to the nearest object, pile driving is the best choice. Here you will find a more detailed description of the pile driving technology.
pile driving cost
The cost indicators for work are very dependent on the volume of scored piles and can be cooked in the range from 200 to 500 rubles per linear meter of immersion. The piles themselves with delivery in the central region will cost about 680 rubles per meter and more, depending on the type of reinforcement of the pile and the shoulder of the carriage to the site. On average, the cost of a pile field, for example, a 2-section residential building in the Moscow Region, with a total number of piles of 700 pieces, is from a thousand rubles per linear meter, taking into account the material, delivery and other expenses of pile drivers, multiplied by the total length of all piles laid down in the construction project.
Source – rusarticles
Deputy General Director of the company “GrandServiceStroy”, which performs construction work of the zero cycle.
Author: Alexander Vahrushev