Abstract
The weak intercalated soils in redbed soft rocks of Badong formation have obvious creep characters. In order to predict the unsaturated creep behaviors of weak intercalated soils, an unsaturated creep model was established based on the unsaturated creep tests of weak intercalated soils by using GDS triaxial apparatus. The results show that the creep behaviors of intercalated soils are apparent and significantly affected by matric suction. Based on this, an empirical Mesri creep model for intercalated soils under varying matric suctions was built. The fitting results show that the parameters E d and m of this model are in good power relations with matric suction s and stress level D r, respectively. An improved Mesri creep model was established involving stress-matric suction-strain-time, which is more precise than the Mesri creep model in predicting the unsaturated creep behaviors of weak intercalated soils.
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LI Ke-ri, KANG Wen-fa. Creep testing of thin interbedded clayey seamsin rockand determination of their longterm strength [J]. Rock and Soil Mechanics, 1983, 4(1): 39–45.
ZHANG Qi-hua, PENG Guang-zhou. Research on creep behavior of the week intercalated bed in the dangerous rock body of Lianzi Cliff [J]. Rock and Soil Mechanics, 1997, 18(1): 60–64.
WANG Zhi-jian, YIN Kun-long, JIAN Wen-xing. Experimental research on creep of incompetent beds in Jurassic red clastic rocks in Wanzhou [J]. Rock and Soil Mechanics, 2007, 28(s1): 40–44.
YANG Tian-hong, RUI Yong-qin, ZHU Wan-cheng, SHEN Li, LIU Jing-hui, YANG Hong-kei. Rheological characteristics and long-term strenth of siltized intercalation interbeded in Peat mudstone [J]. Journal of Experimental Mechanics, 2008, 23(5): 398–402.
CHENG Qiang, ZHOU De-pei, FENG Zhi-jun. Research on shear creep property of typical weak intercalation in redbed soft rock [J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(s1): 3176–3180.
BISHOP A W, LOVENBURY H T. Creep characteristics of two undisturbed clays [C]// Proc 7th ICSMFE. Mexico, 1969: 29–37.
VAID Y P, CAMPANELLA R G. Time-dependent behavior of undisturbed clay [J]. J Geotech Eng, 1977, 103(7): 693–709.
AUGUSTESEN A, LIINGAARD M, LADE P V. Evaluation of time-dependent behavior of soils [J]. Int J Geomech, 2004, 4(3): 137–156.
LIINGAARD M, AUGUSTESEN A, LADE P V. Characterization of models for time-dependent behavior of soils [J]. Int J Geomech, 2004, 4(3): 157–177.
CHARLES J A. Geotechnical properties of coarse grained soils [C]// Proc of 12th Int Conf Soil Mech Found Engng. Riode Janeiro, 1989: 2495–2519.
SINGH A, MITCHELL J K. General stress-strain-time function for soils [J]. Journal of Soil Mechanics and Found Engineering Division, ASCE, 1968, 94(1): 21–46.
MESRI G, REBRES-CORDERO E, SHIELDS D R. Shear stress-strain-time behavior of clays [J]. Geotechnique, 1981: 31(4): 537–552.
SINGH A, MITCHELL J K. General stress-strain-time function for soils [J]. Journal of Soil Mechanics and Found Engineering Division, ASCE, 1968, 94(1): 21–46.
MESRI G, REBRES-CORDERO E, SHIELDS D R. Shear stress-strain-time behavior of clays [J]. Geotechnique, 1981: 31(4): 537–552.
LI Shi-jun, SUN Jun. Mesri’s Creep model for shanghai silt-clay [J]. China Civil Engineering Journal, 2001, 34(6): 74–79.
CHEN Jing-jing, LIU De-fu, WANG Shi-mei. Mesri’s creep model for Qingjiang Landslide-zone Soil [J]. Journal of University of Hydraulic and Electric Engineering, 2005, 27(1): 16–19.
WANG Chen, ZHANG Yong-li, LIU Hao-wu. A modified Singh-Mitchell’s creep function of sliding zonesoils of Xietan landslide in Three Gorges [J]. Rock and Soil Mechanics, 2005, 26(6): 415–418.
WANG Chen, LIU Hao-wu, XU Qiang. Modified mesrips creep model for soils in sliding zone of xietan landslide in the three gorges [J]. Journal of Southwest Jiaotong University, 2004, 39(1): 15–19.
PRIOL G, DE GENNARO V, DELAGE P. Experimental investigation on the time dependent behaviour of a multiphase chalk [C]// Proceedings of 2nd International Conference on Mechanics of Unsaturated Soils. Weimar: Bauhaus Univ Weimar, 2007: 161–167.
ALONSO E E, GENS A, JOSA A. A constitutive model for partially saturated soils [J]. Geotechnique, 1990, 40(3): 405–430.
LAI Xiao-ling, LIU Yin, QIN Hong-bin. Unsaturated creep model of the sliding zone soils of Qianjiangping landslide in Three Gorges [J]. Disaster and Control Engineering, 2009 (1): 41–46.
LAI Xiao-ling, YE Wei-min, WANG Shi-mei. Experimental study on unsaturated creep characteristics of landslide soils [J]. Chinese Journal of Geotechnical Engineering, 2012, 34(2): 286–293.
ZHAN Liang-tong. Field and laboratory study of an unsaturated expansive soil associated with rain-induced slope instability [D]. Hong Kong: The Hong Kong University of Science and Technology, 2003.
ZHAN Liang-tong, NG C W W. Experimental study on mechanical behavior of recompacted unsaturated expansive clay [J]. Chinese Journal of Geotechnical Engineering, 2006, 28(2): 196–201.
ZHU Yan-bo, YU Hong-ming, GAO Jian-wei. Experimental study on deformation and strength of Badong unsaturated red clay [J]. Journal of Engineering Geology, 2012, 20(6): 1050–1056.
TAN Tjong-kie, KANG Wen-fa. On the locked in stress, creep and dilatation of rocks, and the constitutive equations [J]. Chinese Journal of Rock Mechanics and Engineering, 1991, 4: 299–312.
WANG Zhi-jian. Rheologieal experimental study and mechanism research on gentle-dipped landslides of jurassic red stratain wanzhoueity [D]. Wuhan: Chinese university of Geosciences, 2008.
JANBU N. Soil compressibility as determined by oedometer and triaxial tests [C]// Proceedings of European Conference on Soil Mechanics and Foundation Engineering. Wiesbaden, 1963: 19–25.
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Foundation item: Project supported by Science & Technology Program of Hubei Traffic and Transport Office, China; Project(41272377) supported by the National Natural Science Foundation of China
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Zhu, Yb., Yu, Hm. An improved Mesri creep model for unsaturated weak intercalated soils. J. Cent. South Univ. 21, 4677–4681 (2014). https://doi.org/10.1007/s11771-014-2476-4
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DOI: https://doi.org/10.1007/s11771-014-2476-4