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CLC number: TU45

On-line Access: 2013-08-01

Received: 2012-10-10

Revision Accepted: 2013-04-10

Crosschecked: 2013-07-10

Cited: 3

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.8 P.603-614


Loading-unloading test analysis of anisotropic columnar jointed basalts*

Author(s):  Zhi-gang Shan1, Sheng-jie Di1,2

Affiliation(s):  1. HydroChina Huadong Engineering Corporation, Hangzhou 310014, China; more

Corresponding email(s):   shan_zg@ecidi.com

Key Words:  Columnar jointed basalts, In situ test, Joint stiffness, Loading-unloading, Anisotropy

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Zhi-gang Shan, Sheng-jie Di. Loading-unloading test analysis of anisotropic columnar jointed basalts[J]. Journal of Zhejiang University Science A, 2013, 14(8): 603-614.

@article{title="Loading-unloading test analysis of anisotropic columnar jointed basalts",
author="Zhi-gang Shan, Sheng-jie Di",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%T Loading-unloading test analysis of anisotropic columnar jointed basalts
%A Zhi-gang Shan
%A Sheng-jie Di
%J Journal of Zhejiang University SCIENCE A
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%P 603-614
%@ 1673-565X
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200261

T1 - Loading-unloading test analysis of anisotropic columnar jointed basalts
A1 - Zhi-gang Shan
A1 - Sheng-jie Di
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 8
SP - 603
EP - 614
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1200261

To evaluate the columnar jointed basalts in the dam site of Baihetan hydropower station in southwest China, we developed a basic conceptual model of single jointed rock mass. Considering that the rock mass deformation consists of rock block deformation and joints deformation, the linear mechanical characteristics of the cell (including the elastic joints and the nonlinear mechanical behaviors of the cell) with a combined frictional-elastic interface were analyzed. We developed formulas to calculate the rock block deformation, which can be adapted for multiple jointed rock mass and columnar jointed basalts. The formulas are effective in calculating the equivalent modulus of multiple jointed rock mass, and precisely reveal the anisotropic properties of columnar jointed basalts. Furthermore, the in situ rigid bearing plate tests were analyzed and calculated, and the types of loading-unloading curves and the equivalent modulus along different directions of columnar jointed basalts were obtained. The analytical results are in close compliance with the test results.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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