利用振动打桩机打桩是一项先进的施工方法,近年来在我国已得到广泛应用。但是对于不同的土壤来说,最佳的振动频率是不同的。因此振动打桩机必须要能够改变振动频率才能适应不同的土壤。国内外的经验都证明了这一点。为此,目前世界上不少国家都在积极研制可变频的振动打桩机。 Piling using vibration pile driver is an advanced construction method, which has been widely used in our country in recent years. But for different soils, the best vibration frequency is different. Therefore, vibration pile driver must be able to change the vibration frequency to adapt to different soil. This is evidenced by the experience both at home and abroad. To this end, many countries in the world are actively developing variable frequency vibration pile driver.