Formation Mechanism of Ground Fissures in Longdong Loess Tableland, Gansu Province

• 责任者：Zhang Yanlin (Geological Survey of Gansu Province ; Lanzhou 730000 ; China) ; Li Aijun
• 刊名：The Chinese Journal of Geological Hazard and Control
• 出版年：2010
• 卷期：21(1)
• 关键词：黄土塬 ; loess tableland ; 地裂缝 ; ground fissures ; 甘肃 ; Gansu Province
• 页码：p.65-68
• 图表：2 illus., 5 refs.
• 分类号：1800
• issnNo：ISSN1003-8035
• isbnNo：CN11-2825/P

Frequent ground fissures were a form of loess erosion hazard. They were formed on the loess structural joints. It was a special phenomenon of geological disaster in the loess tableland. Its formation was restricted by collapsible features, table-land slope degree, precipitation intensity and ground sclerosis conditions besides the loess structural joints. Formation mechanism of the disasters was analyzed based on their present status in this paper.