APPLICATION OF NEWMARK DISPLACEMENT ANALYSIS TO EISMIC STABILITY EVALUATION OF SUBMARINE SLOPE

CHU Hongxian; FANG Zhonghua; SHI Huijie; LI Panfeng

doi:10.16028/j.1009-2722.2017.06008

2017 Vol. 33, No. 6

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CHU Hongxian, FANG Zhonghua, SHI Huijie, LI Panfeng. APPLICATION OF NEWMARK DISPLACEMENT ANALYSIS TO EISMIC STABILITY EVALUATION OF SUBMARINE SLOPE[J]. Marine Geology Frontiers, 2017, 33(6): 53-58. doi: 10.16028/j.1009-2722.2017.06008

Citation:

CHU Hongxian, FANG Zhonghua, SHI Huijie, LI Panfeng. APPLICATION OF NEWMARK DISPLACEMENT ANALYSIS TO EISMIC STABILITY EVALUATION OF SUBMARINE SLOPE[J]. Marine Geology Frontiers, 2017, 33(6): 53-58. doi: 10.16028/j.1009-2722.2017.06008

APPLICATION OF NEWMARK DISPLACEMENT ANALYSIS TO EISMIC STABILITY EVALUATION OF SUBMARINE SLOPE

Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land Resources, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China; Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China

Received Date: 23 March 2017

Publish Date: 28 June 2017

Abstract

Abstract

Using the Newmark method for seismic time history analysis, we can put into account the effects of natural seismic peak ground acceleration (PGA), duration, and seismic frequency on seabed slopes, and different seismic waves can be input for simulation. In this paper, we calculated the dynamic response of a typical seabed slope as the Caofeidian to an earthquake similar to the Tangshan earthquake in scale. It is concluded that the value of displacement value can be used to quantitatively describe the influence of the earthquake on the slope. Therefore, the allowable displacement value of submarine slope and buildings on it can be used as a marker in security and stability analysis, which may provide important reference for slope stability evaluation and offshore construction.
- earthquake /
- submarine slope /
- stability /
- Newmark /
- displacement

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References

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