Full Text:   <3797>

CLC number: TU45

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2013-07-10

Cited: 3

Clicked: 6107

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
Open peer comments

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

http://doi.org/10.1631/jzus.A1200261


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


Share this article to: More <<< Previous Article|

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",
volume="14",
number="8",
pages="603-614",
year="2013",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1200261"
}

%0 Journal Article
%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
%V 14
%N 8
%P 603-614
%@ 1673-565X
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200261

TY - JOUR
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


Abstract: 
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

References

[1] Brady, B.H.G., Cramer, M.L., Hart, R.D., 1985. Preliminary analysis of a loading test on a large basalt block. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 22(5):345-348. 


[2] Di, S.J., Xu, W.Y., Ning, Y., 2011. Macro-mechanical properties of columnar jointed basaltic rock masses. Journal of Central South University of Technology, 18(6):2143-2149. 


[3] de Felice, G., Amorosi, A., Malena, M., 2010. Elasto-plastic analysis of block structures through a homogenization method. International Journal for Numerical and Analytical Methods in Geomechanics, 20(1):1-33. 


[4] Hart, R.D., Cundall, P.A., Cramer, M.L., 1985. Analysis of a Loading Test on a Large Basalt Block. , Research & Engineering Applications in Rock Masses, Proceedings of the 26th US Symposium on Rock Mechanics, 759-768. :759-768. 

[5] Justo, J.L., Justo, E., Durand, P., 2006. The foundation of a 40-storey tower in jointed basalt. International Journal of Rock Mechanics and Mining Sciences, 43(2):265-267. 


[6] Meng, G.T., 2007.  Geomechanical Analysis of Anisotropic Columnar Jointed Rock Mass and Its Application in Hydropower Engineering. PhD Thesis, (in Chinese), Hohai University,Nanjing, China :

[7] Min, K.B., Jing, L.R., 2003. Numerical determination of the equivalent elastic compliance tensor for fractured rock masses using the distinct element method. International Journal of Rock Mechanics and Mining Sciences, 40(1):795-816. 


[8] Mroz, Z., Giambanco, G., 1996. An interface model for analysis of deformation behaviour of discontinuities. International Journal for Numerical and Analytical Methods in Geomechanics, 20(1):1-33. 


[9] Mroz, Z., Bialas, M., 2005. A simplified analysis of interface failure under compressive normal stress and monotonic or cyclic shear loading. International Journal for Numerical and Analytical Methods in Geomechanics, 29(4):337-368. 


[10] Palmstrom, A., Singh, R., 2001. The deformation modulus of rock masses-comparisons between in situ tests and indirect estimates. Tunneling and Underground Space Technology, 16(2):115-131. 


[11] Schultz, R.A., 1996. Relative scale and the strength and deformability of rock masses. Journal of Structural Geology, 18(9):1139-1149. 


[12] Sharma, V.M., Singh, R.B., Chaudhary, R.K., 1989. Comparison of Different Techniques and Interpretation of the Deformation Modulus of Rock Mass. , Proceedings of the Indian Geotechnical Conference, Visakhapatnam, 439-443. :439-443. 

[13] Shi, A.C., Tang, M.F., Zhou, Q.J., 2008. Research of deformation characteristics of columnar jointed basalt at Baihetan hydropower station on Jin-Sha River. Chinese Journal of Rock Mechanics and Engineering, 27(10):2079-2086. 

[14] Tsanga, C.F., Jing, L.R., Stephanssonc, O., 2005. The DECOVALEX III project: A summary of activities and lessons learned. International Journal of Rock Mechanics and Mining Sciences, 42:593-610. 


[15] Xu, W.Y., Zheng, W.T., Ning, Y., 2010. 3D anisotropic numerical analysis of rock mass with columnar joints for dam foundation. Rock and Soil Mechanics, (in Chinese),31(3):949-955. 

[16] Xu, W.Y., Di, S.J., Zheng, W.T., 2011. Safety performance analysis of rock wedges under left skewback of upstream dam line in Baihetan Hydropower Station. Chinese Journal of Rock Mechanics and Engineering, 30(5):910-916. 

[17] Xu, W.Y., Zheng, W.T., Shi, A.C., 2011. Classification and quality assessment of irregular columnar jointed basaltic rock mass for hydraulic engineering. Journal of Hydraulic Engineering, (in Chinese),43(3):262-270. 

[18] Yan, D.X., Xu, W.Y., Zheng, W.T., Wang, W., Shi, A.C., Wu, G.Y., 2011. Mechanical characteristics of columnar jointed rock at dam base of Baihetan hydropower station. Journal of Central South University of Technology, 18(6):2157-2162. 


[19] Zheng, W.T., 2008.  Rock Mechanics of Irregular Columnar Jointed Basaltic Mass and Its Application in High Slope and Dam Foundation. PhD Thesis, (in Chinese), Hohai University,Nanjing, China :


Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - 2024 Journal of Zhejiang University-SCIENCE