RESEARCH PROGRESS IN SUBMARINE LANDSLIDE AND ITS ENLIGHTENMENT TO STUDY THE SEABED STABILITY IN THE SOUTH CHINA SEA

Continental slope of deep ocean is a prone area of happening geological hazards. With the development of oil and gas resources in deepwater worldwide, the construction of submarine pipeline and the experimental exploitation of natural gas hydrate are increasing, the deep-water geologic disaster, such as submarine landslide, is paid more and more attention. Multi-national scientists have carried out a lot of research on submarine landslide surveying, in-situ monitoring, laboratory experiments, model construction and numerical simulation, and achieved a series of results. South China Sea is rich in energy resources, but the seabed geological conditions are complex and the stability is poor. The seabed stability is an important restricting factor of oil and gas resources exploitation, and the submarine landslide research becomes a key scientific issues of engineering geology environment research in the South China Sea. This paper systematically introduces the research progress and development trend of the international submarine landslide and expounds the current research status of the submarine landslide in the South China Sea. The paper finally summarizes and forecasts the key scientific issues and research hotspots related to the submarine stability, which can provide reference for the evaluation of seabed stability in the process of exploration and development.