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9 September 2019 Shear Strength of Jointed Rock Mass with Different Joint Surface Characteristic in Subsea Tunnel
Qin Jin, Jie Hu, Hongliang Liu, Shuguang Song, Jinpei Liu, Lanyu Cui
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Abstract

Jin, Q.; Hu, J.; Liu, H.-L.; Song, S.-G.; Liu, J.-P., and Cui, L.-Y., 2019. Peak shear strength of jointed rock mass in subsea tunnel. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal Research: Engineering, Industry, Economy, and Sustainable Development. Journal of Coastal Research, Special Issue No. 94, pp. 301–305. Coconut Creek (Florida), ISSN 0749-0208.

Jointed surrounding rock mass environment is often formed under seafloor sedimentary conditions. Since the mechanical properties of joints are important to control the stability of rock masses, the peak shear strength for the joints has always been the focus of relevant research. In this paper, artificially prepared jointed rock masses with different joint surface characteristic were used to perform multiple shear tests to obtain corresponding shear strength data. The research results showed that there were obvious relations between the shear strength of the joint surface morphology. With the increase of shear times, the maximum undulating angle and the roughness of the joint contour decreased and the shear strength decreased correspondingly.

©Coastal Education and Research Foundation, Inc. 2019
Qin Jin, Jie Hu, Hongliang Liu, Shuguang Song, Jinpei Liu, and Lanyu Cui "Shear Strength of Jointed Rock Mass with Different Joint Surface Characteristic in Subsea Tunnel," Journal of Coastal Research 94(sp1), 301-305, (9 September 2019). https://doi.org/10.2112/SI94-062.1
Received: 26 January 2019; Accepted: 1 March 2019; Published: 9 September 2019
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KEYWORDS
joint surface characteristic
jointed rock mass
shear strength
Subsea tunnel
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