vibroflot

vibroflot

1

The left lower pre advancement section was constructed from April 21 of 1997 to April 28 of 1997 and the 75 W vibroflot was adopted .

左下段预进占从1997年4月21日～4月29日完工，采用75kW振冲器施工。
2

The right upper pre advancement section was constructed from February 5 of 1997 to February 19 of 1997 and the 150 W hydraulic motored vibroflot was adopted .

右上段进占施工时间1997年2月5日～2月19日，采用液压驱动150kW振冲器。
3

The in-situ measurement includes : ( 1 ) the ground acceleration due to horizontal vibrating force caused by the vibroflot and its variation with the distance from the vibrating center ;

现场试验包括：①测定振冲器水平振动力作用下产生的地面加速度以及制桩时引起的地面加速度与距振点距离之间的关系；