Isolation of ground vibration induced by high speed railway by DXWIB: Field investigation. Issue 131 (April 2020)

• Record Type: Journal Article
• Authors: Gao, M.; Tian, S.P.; Wang, Y.; Chen, Q.S.; Gao, G.Y.
• Is Part Of: Soil dynamics and earthquake engineering. Issue 131(2020)
• Publication Date: 2020-04
• Subjects: Vibration isolation -- Duxseal-WIB -- Amplitude attenuation ratio -- Field experiment; Soil dynamics -- Periodicals; Earthquake engineering -- Periodicals; Sols -- Dynamique -- Périodiques; Génie parasismique -- Périodiques; 624.176205
• DOI: 10.1016/j.soildyn.2020.106039
• Languages: English
• ISSNs: 0267-7261

Abstract

Abstract: In this Technical Note, a new material (i.e., Duxseal) with high damping ratio is introduced to the wave impeding block (WIB) as an active vibration isolating barrier in the free field. To evaluate the performance of the Duxseal-WIB (DXWIB), a set of field tests are performed at three test sites of Jinan-Qingdao high-speed railway of China subjected to a moving load at a high speed of 250 km/h. Accelerations in the X-, Y-, and Z-directions are monitored at multiple distances away from the track. Characteristics of ground vibrations in both time and frequency domains are analyzed using the test data. The effectiveness of DXWIB in reducing the level of ground vibration is discussed and demonstrated by comparing with the case with traditional WIB. Highlights: A new barrier Duxseal-WIB is developed to apply to high speed railway. Excellent isolation effectiveness of Duxseal-WIB is confirmed. Difference of effectiveness between DXWIB and traditional WIB are compared.