Paper Title:
Microscopic Mechanics of Debris Accumulation Body with Expansive Fine Grain and PFC Numerical Simulation
  Abstract

To study the influence mechanism of the excavation stability of the debris accumulation body by the expansive fine grain, it has used by Particle Flow Code, based on indoor test, the fine-grain expansive effect has divided into fine-grain intensity attenuation and volume expansion, and it has linear decreased down from the surface on the accumulation body. Based on the contrastive analysis between simulated result and traditional finite element, the Particle Flow Code is more accurate and true. The analysis result has suggested that when consider the expansive action, the damage model is changed into surface sliding from part slump, and the X-direction stress added 20kPa in the interior of the accumulation body, and the whole sliding force added 30% more or less. At present, the field excavation situation is consistent with the calculation result.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
4188-4194
DOI
10.4028/www.scientific.net/AMR.243-249.4188
Citation
L. N. Zheng, Q. Xie, W. Zhao, M. F. Qu, C. H. Li, "Microscopic Mechanics of Debris Accumulation Body with Expansive Fine Grain and PFC Numerical Simulation", Advanced Materials Research, Vols. 243-249, pp. 4188-4194, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Le Hua Wang, Jian Lin Li, Shan Shan Yang, Zhuang Cheng, Min Zhu
Abstract:Proper mechanical parameters of slope rock mass are the premise which ensures the smooth progress of slope stability calculation. By...
3482
Authors: Xiao Lei Wang, San Yuan Shi, Li Bo Liu, Chang Feng Yuan
Chapter 1: Geotechnical Engineering
Abstract:Based on the analysis of influence of fissures and accumulation rainwater at toe of slope under rainfall condition on expansive soil slope, A...
735
Authors: Jing Du, Yan Xi Zhao
Chapter 6: Hydropower
Abstract:Landslide stability is very important to the hydropower station construction. The volume of landslide accumulation mass in a hydropower...
981
Authors: Xiao Qin Yi, Qing Hai Zeng, Ying Liang
Chapter 20: Mechanical Behavior and Fracture
Abstract:Simulating motion process of incompact landslip-collapse soil. Monitoring evolution process of average contact force and unbalance force when...
2174