陕西韩城市地质灾害空间分布规律与防治

实地调查表明,韩城市地质灾害分布具有明显的空间规律,以韩城断裂为东、西区域的分界线,东部黄土台塬区以黄土崩、滑为主,西部低山区则地裂缝和地面塌陷十分发育;研究认为,韩城市地质灾害具有某种集中发育的特征,在成因上除了与降雨量有明显正相关关系外,西部区域主要决定于人类的采矿活动,东部区域则受控于自然地质因素;不同成因的地质灾害其防治措施是不一样的,西部以工程治理为主,东部则以生物防治为主.

Law of Spatial Distribution of Geological Hazard in Hancheng City, Shaanxi and Its Prevention

Investigation show that the law of spatial distribution of geological hazards in Hancheng is apparent. Using Hancheng fault as a boundary line, Hancheng can be divided into east region and west region. The east region is a loess yuan where the main geological hazards are loess collapse and slide. The west region is low mountain area where ground fissure and subsidence well developed.Study shows that the geological hazards have a concentrative distribution. The causes of geological hazards have a positive correlation with precipitation. In the west region, the hazards are mainly due to mining activities and, in the east region, the hazards are controlled geological factors. The means to prevent the geological hazards that result from different causes are different.Hazards in the west region should be controlled by engineering measures and bioengineering methods should be taken in the east.