Marine Engineering Geology in Developing Ocean Resources and Energy
• 大类 : 地球科学 - 1区
• 小类 : 工程：地质 - 1区
• 小类 : 地球科学综合 - 1区
Increasing global energy demands necessitate the exploitation of ocean resources, including oil and gas, hydrates, polymetallic nodules, and rare-earth minerals, as well as marine renewable energy such as wind power, tidal energy, and wave energy. However, due to the complex interplays between geologic materials and the marine hydrodynamic environment, marine geohazards, such as submarine landslides, debris flows, and turbidity currents, occur frequently in the construction and operation of these ocean engineering projects. For example, the Grand Banks submarine landslide in 1929 caused the breakage of 12 telegraph cables and claimed 29 lives. The landslide subsequently triggered a turbidity current, carrying mud and sand eastward for up to 1000 km. Furthermore, the geological and geotechnical conditions can be greatly altered during the construction, operation, and maintenance of these marine infrastructures, which may raise the potential for marine geohazards. To date, marine engineering geology has developed as an interdisciplinary field that encompasses the complex mechanical behavior, mechanism of marine geo-hazards, and catastrophic effects of the seafloor sediments on marine structures in offshore and deep-sea environments. The purpose of this special issue is to collect the results of studies related to marine engineering geological and geotechnical aspects of ocean resources and energy development.
Xiaolei Liu, Ocean University of China, Qingdao, China;