Wind driven generator base anchor pile construction technology taking rock as bearing stratum

Abstract

A wind driven generator base anchor pile construction technology taking rock as a bearing stratum comprises the following steps: (1) excavating rock and soil volume in designed diameter, pouring concrete subslab after removing to the designed depth of excavation, and arranging anchor pile hole sites, (2) starting up an air compressor and downhole drill to drive an impacter to rotate and vibrate for punching, forming an anchor pile hole, (3) lifting a prefabricated reinforcing cage into the anchor pile hole, pouring concrete, and forming at least two circles of vertical pile and one circle of batter pile after the concrete strength reaches the standard, (4) putting a reinforcement mat rack into a base pit, fixedly connecting the reinforcing cage and the reinforcement mat rack and then pouring concrete, and (5) arranging a base embedded part above the concrete foundation and poring concrete. The invention has the advantages of less excavated rock and soil volume, no need of blasting operation, few amount of reinforcing steel bar and pouring concrete, no pollution to environment and soil, high construction efficiency and safety, small occupied area, low construction cost, high foundation strength, and strong pulling-out resistant and shearing resistant capacity.

Description

technical field [0001] The invention particularly relates to a construction technology of the foundation anchor pile of the wind power generator with rock as the bearing layer. Background technique [0002] As the fossil energy is increasingly tense and depleted, the development and utilization of new energy has attracted more and more attention. Wind power is currently the most mature technology and the most widely used in the development of new energy. The traditional wind turbine foundation mostly adopts concrete stepped on-site pouring, which is based on its weight and plane size to adapt to the overall anti-overturning under wind conditions and meet the needs of stability. The problems of this construction method are: 1. The amount of excavated earth and stone is large and most of them require blasting operations. The approval time for blasting operation procedures is long, and the purchase of civil blasting materials is complicated. Potential safety hazards are brough...

AI Technical Summary

Problems solved by technology

The problems of this construction method are: 1. The amount of excavated earth and stone is large and most of them require blasting operations. The approval time for blasting operation procedures is long, and the purchase of civil blasting materials is complicated. Potential safety hazards are brought about by machine personnel; 2. Large amount of steel bars and large amount of concrete pouring are likely to cause water and soil erosion in small watersheds and damage the environment; 3. In order to obtain better wind energy, most wind farms are located in mountainous hills with thin loose covering layers , the geological conditions are mostly exposed rocks, and this construction method is difficult to construct, low in efficiency, poor in safety, and high in cost

Images