Mechanical Properties of Interface between Coarse-Grained Soil and Concrete

Abstract:

Comparative tests on interfaces between different materials are performed by means of the self-developed NHRI-4000 high-performance large interface shear apparatus. Change of mechanical properties of interfaces between different coarse-grained soils and concrete is investigated owing to the differences of materials. The influences of the existence of slurry on the strength indices of the interfaces are analyzed. The test results show that shear failures all occur in the contact zone of specimens. The properties of materials and the differences of particle shapes have great influences on the strength and deformation characteristics of interfaces as well as the residual shape of shear plane after shearing. The specific exhibition is as follows: (1) the strength and deformation indices of rock-fill materials with distinct edges are significantly superior to those of sand-gravel materials with good roundness; (2) the existence of slurry leads to obvious decrease of mechanical indices of the interfaces.

• Periodical: Applied Mechanics and Materials (Volumes 174-177)
• Pages: 180-186
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.174-177.180
• Online since: May 2012
• Authors: Hua Fu, Yun Hui Li, Hua Qiang Han, Hua Ling
• Keywords: Coarse-Grained Soil, Deformation, Interface, Material Property, Particle Shape, Strength

References

[1] Heping Xie, Zhonghui Chen, Hongwei Zhou, et al. Study on two-body mechanical model based on interaction between structural body and geo-body[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 29(9): 1457-1464. (in Chinese)

[2] Xiurun Ge, Xianrong Gu, Dingxiang Feng. Three-dimensional infinite domain elements and joint infinite domain element[J].Chinese Journal of Geotechnical Engineering, 1986, 8(5): 9-20. (in Chinese)

[3] Shoude Li, Hongliang Yu. Modification of Goodman interface element[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(15): 2628-2631. (in Chinese)

[4] Desai C S, Drumm E C, Zaman M M. Cyclic testing and modeling of interfaces[J]. J. Geotech. Engineering, 1985, 111(6): 793-815.

DOI: 10.1061/(asce)0733-9410(1985)111:6(793)

[5] Zongze Yin, Hong Zhu, Guohua Xu. Numerical simulation of the deformation in the interface between soil and structural material[J]. Chinese Journal of Geotechnical Engineering, 1994, 16(3): 14-22. (in Chinese)

[6] Ga Zhang, Jianmin Zhang. Experimental study on behavior of soil-structure interface with slurry[J]. Rock and Soil Mechanics, 2005, 26(9): 1374-1378. (in Chinese)

[7] Junhe Gao, Haili Yu, Weibing Zhao. Characteristics study of interface between soil and concrete by using large size single shear apparatus and numerical analysis[J]. China Civil Engineering Journal, 2000, 33(4): 42-46. (in Chinese)

[8] Liming Hu, Jialiu Pu. Experimental study on mechanical characteristics of soil-structure interface[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(4): 431-435. (in Chinese)

[9] Huaqiang Han, Shengshui Chen. Research progress on the contact problems of high earth-rock dam[J]. Advances in Science and Technology of Water Resources, 89-94. (in Chinese)

[10] Qingyun Li. Analysis of the behaviour of stage Ⅱ cofferdam of TGP[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(4): 412-413. (in Chinese)