自然杂志 ›› 2014, Vol. 36 ›› Issue (5): 325-335.

• 专题综述 • 上一篇    下一篇

孔隙水压力在滑坡泥石流起动和运动中的作用

周公旦   

  1. 副研究员,中国科学院山地灾害和地表过程重点实验室,中国科学院水利部成都山地灾害与环境研究所,成都 610041
  • 出版日期:2014-10-25 发布日期:2015-04-13
  • 基金资助:
    国家自然科学基金(41201012)资助

Effect of pore water pressure on the triggering and mobilization of landslides

ZHOU Gong-dan   

  1. Associate Professor, Key Laboratory of Mountain Hazards and Earth Surface Process, Chinese Academy of Sciences; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences & Ministry of Water Conservancy, Chengdu 610041, China
  • Online:2014-10-25 Published:2015-04-13

摘要: 自然界重要的山地灾害——滑坡、泥石流都是由大量的颗粒物质和颗粒间孔隙水所构成的多相介质。颗粒间孔隙水压力的发展和消散直接影响颗粒间的作用,是导致边坡失稳、土体滑动、泥石流流动性加强的重要因素。全面综述孔隙水压力的定义和测试方法,孔隙水压力的发展、消散过程,以及颗粒间有效应力的变化,以期进一步明确孔隙水压力对滑坡、泥石流起动和运动的重要性。

关键词: 孔隙水压力, 滑坡, 泥石流

Abstract: Landslides (slope failure and debris flow) in nature are composed by masses of solid particles and pore fluids. Pore water pressure plays a key role in the triggering of slope failures and enhancing the mobility of debris flows. In this paper, the concept of pore water pressure and its measurement are demonstrated, and the research work about the development of the pore water pressure and its dissipation are also reviewed.