Stability analysis of stope roof by combined action of anchor cable and anchor rod

2011 ◽  
pp. 301-305
Author(s):  
C Li ◽  
H Li ◽  
Y Li
Keyword(s):  
Stability Analysis ◽  
Anchor Cable ◽  
Combined Action

Analysis on Stability of Dongchuan Landslide and the Comprehensive Management Measure

2012 ◽  
Vol 557-559 ◽  
pp. 366-370 ◽  
Author(s):  
Jiang Tao Xia ◽  
Cheng Zhong Yang ◽  
Shu Fang Wang
Keyword(s):  
Stability Analysis ◽  
Comprehensive Management ◽  
Anchor Cable ◽  
Surface Drainage ◽  
Management Measure ◽  
Engineering Measures ◽  
Lattice Beam ◽  
The Stability ◽  
Prestressed Anchor

Based on the investigation and analysis of the causes of Dongchuan landslide, as well as on the stability analysis of Dongchuan landslide No. 1 and No. 2,it was presented by use of surface drainage, anchor pile, prestressed anchor cable lattice beam and other engineering measures on Dongchuan landslide to conduct comprehensive management. The deformations of treatment landslide were monitored and analyzed. The monitoring results show: the greatest deformation of the landslide is 8mm and the slope is a basically stable. Therefore, combined anchor piles, prestressed anchor cable lattice beam with drainage can well manage landslid

Analysis of friction-induced vibration in a propeller–shaft system with consideration of bearing–shaft friction

2013 ◽  
Vol 228 (8) ◽  
pp. 1311-1328 ◽  
Author(s):  
Zhenguo Zhang ◽  
Feng Chen ◽  
Zhiyi Zhang ◽  
Hongxing Hua
Keyword(s):  
Stability Analysis ◽  
Dynamic Responses ◽  
Nonlinear Friction ◽  
Propeller Shaft ◽  
Shaft System ◽  
Modal Model ◽  
Lateral Coupling ◽  
Combined Action ◽  
The Stability ◽  
Friction Induced Vibration

This paper is concerned with friction-induced vibration of a continuous propeller–shaft system excited by nonlinear friction due to contact between a water-lubricated bearing and a shaft. The dynamic equation is derived using Hamilton’s principle in conjunction with the finite element method. The drooping characteristics of the nonlinear friction and the torsional–lateral coupling via the bearing–shaft interaction laws are considered. Both stability analysis and responses analysis are then investigated through various system parameters. Stability is analyzed by determining the eigenvalues of the Jacobian matrix of the linearized system at the equilibrium point. Dynamic responses of the system are calculated on the basis of a reduced order modal model using the numerical integration method in order to validate the stability analysis. Numerical simulation proved to be consistent with the linear stability analysis. Analytical and numerical investigations reveal that friction-induced vibration of the proposed system is due to the combined action of nonlinear friction and coupled dynamics of the system, rather than the velocity-dependent friction alone as is commonly assumed.

Application of FLAC to Study on Anchorage for Mountain Slope

2012 ◽  
Vol 535-537 ◽  
pp. 1944-1949
Author(s):  
Hai Jun Chen ◽  
Wei Bin Yuan
Keyword(s):  
Numerical Simulation ◽  
Stability Analysis ◽  
Slope Stability ◽  
Comparative Study ◽  
Field Measurement ◽  
Mountain Slope ◽  
Reinforcement Scheme ◽  
Anchor Cable ◽  
Reinforcement Measures

In the paper, the mountain of Siwu village was selectedd for the study. Combined with status of landslide, three typical profile of the slope were selected to carry out stability analysis, reinforcement scheme was proposed for the characteristics of each slope. Based on the field measurement, the fast Lagrangian numerical simulation (FLAC) was used to carry out comparative study of the quality of the two anchoring scheme. The results show that two reinforcement measures with anchor cable or anchor can be effective to provide slope stability.

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