Improvement of Cover Displacement Functions in the Numerical Manifold Method

Zhou Xiaoyi; Deng Anfu; Huang Runying

Jul. 2021

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Zhou Xiaoyi, Deng Anfu, Huang Runying. Improvement of Cover Displacement Functions in the Numerical Manifold Method[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2007, 21(1): 1-3.

Citation:

Zhou Xiaoyi, Deng Anfu, Huang Runying. Improvement of Cover Displacement Functions in the Numerical Manifold Method[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2007, 21(1): 1-3.

Zhou Xiaoyi, Deng Anfu, Huang Runying. Improvement of Cover Displacement Functions in the Numerical Manifold Method[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2007, 21(1): 1-3.

Citation:

Zhou Xiaoyi, Deng Anfu, Huang Runying. Improvement of Cover Displacement Functions in the Numerical Manifold Method[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2007, 21(1): 1-3.

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Improvement of Cover Displacement Functions in the Numerical Manifold Method

1. College of Civil Engineering, Chongqing University, Chongqing 400045;
2. Chongqing Coal Geology Institute, Chongqing 400042 China

Received Date: 2006-11-21
Available Online: 2021-07-10

Abstract

Abstract

Based on research of the formation of stiffness matrix in the numerical manifold method, physical cover displacement function is improved to mend the stiffness matrix that relatively huge numerical value appears in part of that. The result shows that locally huge numerical value is greatly reduced as adoption of improved formulation of physical cover displacement function, and calculation efficiency is enhanced. This supplies a reasonable suggestion for the solution of the stiffness matrix. An example testifies the validity of the proposed approach.
- numerical manifold method,
- stiffness matrix,
- cover displacement function,
- center coordinate of figure