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The Design of Parameters to Improve Actuating Performance in High Frequency Vibro-Hammer(HFVH) and the Study of Characteristic Propagation and Attenuation of Piling Vibration

초고주파 진동항타기의 구동 성능향상을 위한 파라미터 설계 및 항타진동의 전달과 감쇠특성에 관한 연구

  • 장태인 (연세대학교 대학원 기계공학과) ;
  • 박준혁 (연세대학교 대학원 기계공학) ;
  • 백윤수 (연세대학교 대학원 기계공학) ;
  • 김성배 ((주) 동광중공업 산업기술연구)
  • Published : 2004.06.01

Abstract

This paper suggests the 2 D.O.F mathematical model of the High Frequency Vibro-Hammer (HFVH), introduces an experimental method for measuring of the attenuation of piling vibration and proves what experiments are coincident with the equation of wave propagation. As vibratory installation of piles and casings has many economic merits in the construction field, most of all contractors prefer to vibratory pile driving method than the other. Compared to impact pile driving, vibratory installation has the advantage of reducing vibration or noise pollution and can drive piles under high frequency. Experiments serve estimations of capabilities and limitations of the HFVH's excitation force and finding of sensitivity for important soil resistance parameters. Also, we discuss the HFVH that can drive with three kinds of input waves (triangular, sine and square wave) and propose the design of parameters to improve actuating performance in it.

Keywords

High Frequency Vibro-Hammer(HFVH);Piling Vibration;Vibration Attenuation;Wave Propagation

References

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