Two approaches to identifying the slip zones of loess landslides and related issues

摘要

With the rapid development of highways on the loess area in recent decades,a large number ofloess landslides are encountered and some of them have to be controlled. Unfortunately,the invalid technicalmethods for landslide exploration generally employed often led to misjudgment of their geological conditionsand stability that make stabilizing construction either failure or extra investment. For landslide exploration,itis a key problem to locate the slip zone,so we are going to discuss some practical skills in loess landslideexploration after the research project we have finished which funded by Communication Bureau of ShaanxiProvince,China. The skills include drilling technique in loess landslides,identification of loess slip zone anduse of electric resistivity for inspecting the slip zone. From in situ and laboratory tests and observation,we havesuggested a series of easy operating and effective ways for loess landslide exploration.