【摘要】 通过对2006年4月21日在山西繁峙县金山铺乡中虎峪村发现的地裂缝进行现场勘察,分析排除了4月代县震群和降雨的影响,认为此次地裂缝是由于2005年7月~8月洪水曾漫过该区域,由于地表水的下渗在地下深部形成空洞,湿陷性黄土在重力作用下,产生局部不均匀沉降而形成。该结果对地震活动的研究和安定民心有积极的意义。更多还原

【Abstract】 Through the site investigation and analysis on the ground fissure discovered at Zhonghuyu Village,Jinshanpu Town,Fanshi county of Shanxi on April 21,2006,effects of Daixian earthquake swarm in April and rainfall on the Ground Fissure are excluded.It is considered that the ground fissure is caused by inhomogeneous local settlement of collapsible loess under the action of gravity,after floodwater overflowed the area from July,2005 to August,2005,forming a deep underground cavity due to infiltration of surface water.The report has positive significance to study of seismicity and stabilization of society.更多还原