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振冲器是振冲法加固软弱地基的主要机具。它的特点是将振动源直接传至深层的加固土体。工作时,振冲器产生振动和射水形成深孔洞,在孔中灌入填料(如碎石等),借助振冲器产生的振动力自下而上把填料逐段振制成密实的桩柱,形成加固了的人工地基。施工过程中,振冲器周围产生质点运动加速度场,加速度值随距振冲器距离增大而衰威。经振冲后,砂性土相对密度可达80~90%以上,标准
The vibrator is the main tool for vibrating the soft ground. Its characteristic is that the vibration source is directly transmitted to the deep reinforced soil. During operation, the vibrator generates vibrations and water jets to form deep holes, fills the holes with fillers (such as gravel, etc.), and oscillates the fillers from bottom to top into dense piles by means of the vibration force generated by the vibrator. , to form a reinforced artificial foundation. During the construction process, a particle motion acceleration field occurs around the vibrator, and the acceleration value decays as the distance from the vibrator increases. After vibrated, the relative density of sandy soil can reach 80 to 90%.