Special Issue on Deep-seated gravitational slope deformations and catastrophic landslides
摘要截稿:
全文截稿: 2018-11-15
影响因子: 4.779
期刊难度:
CCF分类: 无
中科院JCR分区:
• 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
Overview
In recent years, many geohazards caused deaths and heavy damage worldwide. For example, 2016 Kumamoto, 2016 Kaikoura, and 2015 Gorkha earthquakes, as well as 2014 Hiroshima rainstorm disaster, 2011 Typhoon Talas, and 2009 Typhoon Morakot, all caused numerous catastrophic landslides. The failures occurred in a very short time, but preparatory processes linked to deep-seated gravitational slope deformations (DGSD or DSGSD) preceded many of them. DGSD have been studied since the 1960s (e.g., Zischinsky, 1966). It has been gradually recognized that there are various types of DGSD, with some of which capable to transform into catastrophic failures. Even when DGSD do not progress to catastrophic failure and continue to evolve very slowly, in a long term they play an important role in gradually changing the landscape and deteriorating rock mass quality. On the other hand, due to rock weathering, some catastrophic landslides are triggered abruptly by earthquakes e.g., those in slopes with weathered pyroclastics or carbonate rocks.
In the past few decades, new remote sensing techniques have been developed and applied to the study DGSD and landslides, like LiDAR, satellite- or ground-based InSAR, GNSS, and UAV. Geophysical exploration techniques, including the seismic, electromagnetic and electrical resistivity tomographies, are also applied to investigate underground geological features. Obtaining undisturbed samples of subsurface materials is now much improved by high-quality drilling techniques. Laboratory testing and slope stability numerical simulating techniques have also undergone important development.
This Special Issue offers an opportunity to present the state of art on studies on DGSD and catastrophic landslides. It builds upon the discussions during the 4th Slope Tectonics Conference held in 2017 in Kyoto, Japan. About 80 papers were presented at the conference, which also included a field trip to the Kii Mountains, where over 50 large catastrophic landslides were induced by a rainstorm in 2011.
Papers are welcome on the topics listed below:
- Topographic and geological features of DGSD and catastrophic landslides
- Development of DGSD
- Transformation from slow-moving DGSD to catastrophic failure
- Imaging and monitoring of DGSD and landslides
- Relation between active tectonics, DGSD and landslides
- Detection and safety evaluation of landslide dams
- Experimental study on DGSD and catastrophic landslides