The mechanism for the slumping congeries starting response to rainfall

Yun Cui; Jiming Kong; Peifeng Han

doi:10.1117/12.2010641

14 March 2013 The mechanism for the slumping congeries starting response to rainfall

Yun Cui, Jiming Kong, Peifeng Han

Proceedings Volume 8768, International Conference on Graphic and Image Processing (ICGIP 2012); 87680N (2013) https://doi.org/10.1117/12.2010641
Event: 2012 International Conference on Graphic and Image Processing, 2012, Singapore, Singapore

Abstract

The starting process of slumping congeries is the key of Landslide fluidization. Taking Jinlong gully of Yalong River as a typical instance, the characteristics of slumping congeries on the response of heavy rainfall are analyzed firstly, then dynamic mechanism is made to retrieve the starting of slumping congeries by mechanical model. Finally Conclusions of slumping congeries starting response to rainfall are given: (1) The response to rainfall amount is reflected in the transition period of the dry season to rainy season when transformation of debris flows are concentrative happened. (2) The response to rainfall intensity is characterized by short-term index of rainfall intensity, and after calculating the index of rainfall intensity in Jinlong gully, debris flow is likely to outbreak when the index is greater than 800. (3) Taking a loose debris body as the simplified mechanics model, the starting process of slumping congeries is that under the heavy rainfall the increased water force and decreased soil cohesions reduce the stability and then lead to the starting of the slumping congeries and generate debris flow. All the conclusions and results in the paper can provide references for the theory study of landslide fluidization and the starting of debris flow.

Citation Download Citation

Yun Cui, Jiming Kong, and Peifeng Han "The mechanism for the slumping congeries starting response to rainfall", Proc. SPIE 8768, International Conference on Graphic and Image Processing (ICGIP 2012), 87680N (14 March 2013); https://doi.org/10.1117/12.2010641

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available