Indexed by:
Abstract:
To investigate the influence of dynamic characteristics and parameters on the dynamic response of slope under earthquake by inputting seismic waves of different types, different amplitude, different frequency and different duration.A shaking table model test of anti-dip rock slope of weak lithologic association and a penetrating structural plane with the scale of 1:1000 was designed based on the Xuelongnang landslide in Chang du city Sichuan province.Results show that the acceleration amplification coefficient increases along the slope surface and vertical direction in the slope body with the increase of elevation under the action of strong earthquake, and presents a rhythmic change along the horizontal direction.The acceleration amplification coefficient increases with the increase of input frequency.As the input amplitude increases, it increases first and then decreases, and the amplitude value with obvious inflection point is 0.4g.The influence of duration on the dynamic response of slope is the least.Compared with the Wenchuan Wolong wave, the dynamic response of Maoxian wave to the slope is more obvious.The acceleration amplification coefficient has obvious elevation amplification effect along the slope surface and vertical direction in the slope body and surface amplification effect along the horizontal direction.Seismic parameters have different effects on slope acceleration amplification effect.The frequency has the greatest influence, then amplitude, Duration has minimal effect.The closer the frequency of the input seismic wave is to the natural frequency of the slope, the greater the influence on the slope is. © 2022, Editorial Department of Journal of SJZU. All right reserved.
Keyword:
Reprint Author's Address:
Email:
Source :
Journal of Shenyang Jianzhu University (Natural Science)
ISSN: 2095-1922
Year: 2022
Issue: 2
Volume: 38
Page: 279-287
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
Affiliated Colleges: