Geotechnical and geochemical investigations of the Marquês de Pombal landslide at the Portuguese continental margin
Geotechnical and geochemical investigations of the Marquês de Pombal landslide at the Portuguese continental margin
复制标题
葡萄牙大陆边缘 Marquês de Pombal 滑坡的岩土工程和地球化学调查
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
A. Kopf
中科院分区：
文献类型：
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作者：
M. Minning;D. Hebbeln;C. Hensen;A. Kopf
由于学术界和工业界进行了广泛的研究，控制斜坡稳定性和海底滑坡的内在机制和因素已为人们所知，然而，滑坡过程的时间和空间变异性仍然知之甚少。事实上，只有少数海底滑坡的确切触发机制是确定无疑的(Mienert等人。2003年)。一般来说，海底滑坡的发生是由于多沙斜坡上的荷载增加，进而可能导致剪应力增加或剪切强度降低。海底滑坡的可能触发机制包括海平面变化、高沉积速率、坡度过陡、波浪活动(特别是在风暴期间)、天然气水合物分解、孔隙压力增加、海啸和地震。
The inherent mechanisms and factors governing slope stability and submarine landslides are known because of extensive research carried out by academia and industry, however, the temporal and spatial variability of landslide processes remain poorly understood. In fact, the exact trigger mechanisms of only a few submarine landslides are known with certainty (Mienert et al. 2003). In general, submarine landslides occur due to an increase in loading on a sediment-laden slope, which may in turn lead to an increase in shear stress, or a reduction in shear strength. Possible trigger mechanisms for submarine landslides include sea level change, high sedimentation rates, oversteepening of the slope gradient, wave activity (especially during storm events), gas hydrate dissociation, pore pressure increase, tsunamis, and earthquakes.
影响因子：
5
作者：
Hensen, C;Zabel, M;Boettius, A
通讯作者：
Boettius, A