KICT Space Drill System for Lunar Subsurface Investigation

Author(s):  
H. Lee ◽  
B. Ryu ◽  
J. Lee ◽  
H. Shin
2017 ◽  
Vol 12 (1) ◽  
pp. S768-S769
Author(s):  
Yuichiro Ueda ◽  
Tatsuo Nakagawa ◽  
Yasuaki Tomioka ◽  
Toshiya Toyazaki ◽  
Masashi Gotoh

Author(s):  
Amir Ahmadipur ◽  
Alexander McKenzie-Johnson ◽  
Ali Ebrahimi ◽  
Anthony H. Rice

Abstract This paper presents a case study of a landslide with the potential to affect four operating high-pressure natural gas pipelines located in the south-central US state of Mississippi. This case study follows a landslide hazard management process: beginning with landslide identification, through pipeline monitoring using strain gauges with an automated early alert system, to detection of landslide movement and its effects on the pipeline, completion of a geotechnical subsurface investigation, conceptual geotechnical mitigation planning, landslide stabilization design and construction, and stress relief excavation. Each step of the landslide hazard management process is described in this case study.


2018 ◽  
Vol 70 (1) ◽  
Author(s):  
Jean Marcel ◽  
Jean Marcel Abate Essi ◽  
Philippe Njandjock Nouck ◽  
Oumarou Sanda ◽  
Eliézer Manguelle-Dicoum

2006 ◽  
Vol 61 (3) ◽  
pp. 201-208 ◽  
Author(s):  
R. Bell ◽  
J.-E. Kruse ◽  
A. Garcia ◽  
T. Glade ◽  
A. Hördt

Abstract. Landslides occur frequently all over the world, causing at times considerable economic damage, injuries and even death. In order to improve hazard assessment, common landslide types of a given region need to be investigated in detail. While traditional techniques of subsurface investigation are expensive and only provide point information, geophysical methods are suitable tools for gathering 2D and 3D information on the subsurface quickly, reliably and cost-effectively. In this study, the suitability and limitations of 2D resistivity for the determination of landslide extent, structure and soil moisture conditions are presented. For this purpose, two identical profiles were taken during a two-month period. Significant differences in electrical resistivity (>1000 Ωm) due to varying soil moisture conditions were observed. Using various inversion parameters, it was possible to model two distinct subsurface images. Regrettably, the sliding plane could not be detected reliably, possibly due to the homogeniety of the landslide material and underlying bedrock.


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