期刊
OCEAN ENGINEERING
卷 216, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2020.108069
关键词
Submarine slides; Turbidity currents; Mass transfer; Electrical resistivity
资金
- National Natural Science Foundation of China [42077272, 51879036]
- National Key Research and Development Program of China [2018YFC0309203]
Historically, frequent submarine slide hazards have directly or indirectly caused much devastating damage to offshore infrastructure, resulting in large economic losses that have attracted increasing international attention. Previous studies have focused more on the characteristics of submarine slides themselves (kinematics, sedimentology, etc.), but studies on the interaction between submarine sliding soils and the ambient water that affects these characteristics are relatively limited. In this paper, the mass transfer process at soil-water interfaces during submarine slide motions at different velocities is investigated by a series of experiments using a carefully designed flume testing system. The results show that the extent of the mass transfer process at soil-water interfaces mainly depends on the velocity and material properties (shear strength and apparent viscosity) of submarine sliding soils. Based on the experimental results, an empirical prediction equation for average mass transfer flux parameters at soil-water interfaces during movements of viscous marine sliding soils is recommended, providing a new reference for assessing the characteristics of submarine slides.
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