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Lina Ma, Shengwen Qi, Songfeng Guo, Qiangbing Huang, Xiaokun Hou, Linxin Zhang. Investigation on the deformation and failure patterns of loess cut slope based on the unsaturated triaxial test in Yan'an, China. Journal of Earth Science. doi: 10.1007/s12583-021-1554-4
Citation: Lina Ma, Shengwen Qi, Songfeng Guo, Qiangbing Huang, Xiaokun Hou, Linxin Zhang. Investigation on the deformation and failure patterns of loess cut slope based on the unsaturated triaxial test in Yan'an, China. Journal of Earth Science. doi: 10.1007/s12583-021-1554-4

Investigation on the deformation and failure patterns of loess cut slope based on the unsaturated triaxial test in Yan'an, China

doi: 10.1007/s12583-021-1554-4

This research was funded by the Natural Science Foundation of China under Grants Nos. 41790442 and 41825018, the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No. XDA23090402, and the State Key Research Development Program of China under Grant No. 2017YFD0800501.

  • The large-scale implementation of the Gully Stabilization and Land Reclamation (GSLR) project induces various failures of loess slopes due to excavation in Yan'an, China. However, the deformation and failure behavior of these excavated loess slopes have not been fully understood. In this study, field investigation was undertaken for analyzing the distributions and failure features of excavation-induced loess slope failures. It is found that plastic failure mainly occurs in Q3 loess layers and brittle failure in Q2. To understand the underlying failure mechanism, a series of triaxial shear tests were conducted on intact Q3 and Q2 loess samples that with different water contents, namely natural water content (natural), dry side of the natural value (drying 5%), and wet side (wetting 5%). The characteristics of stress-strain curves and failure modes of the samples were analyzed. Results show that the stress-strain curves of Q2 samples are dominated by strain-softening characteristics, while Q3 samples mainly exhibit strain-harden features except in the drying state. Correspondingly, shear failures of Q3 specimens are mainly caused by shear crack planes (single, X or V-shaped). For Q2 loess, the dominance of tensile cracks is observed on the surface of damaged specimens. These disclose the different failure modes of excavated slopes located in different strata, that is, the arc sliding failure of Q3 loess slopes and the stepped tensile failure of Q2 loess slopes, and are helpful in the design and management of the ongoing GSLR projects in the Loess Plateau.


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  • Assallay, A.M., Rogers, C.D.F., Smalley, I.J., 1997. Formation and collapse of metastable particle packings and open structures in loess deposits. Eng. Geol. 48 (1-2), 101-115.
    Chen, C.L., Zhang, D.F., Zhang, J., Zhang, W.B., 2017. Compression and wetting deformation behavior of intact loess under isotropic stresses. Chinese Journal of Rock Mechanics and Engineering. 36(07):1736-1747 (in Chinese).
    Chen, H., Shao, M., Li, Y., 2008. Soil desiccation in the Loess Plateau of China. Geoderma. 143, 91-100.
    Chen, H.J., Han, Z.F., Zhou, C.M., Zhang, X.W., 2017. Stability analysis of high slope in loess cut under rainfall. Highway 2, 6-11 (in Chinese).
    Cheng, X., 2009. Experimental Study of Dependence of Loess Strength on Water Content. MSc Thesis. China University of Geosciences, Wuhan, China.
    Cho, N., Martin, C.D., Sego, D.C., 2007. A clumped particle model for rock. Int. J. Rock Mech. Min. Sci. 44, 997-1010.
    Colesanti, C., Wasowski, J., 2006. Investigating landslides with space-borne Synthetic Aperture Radar (SAR) interferometry. Eng. Geol. 88, 173-199.
    Dang, J., Li, J., Zhang, B., 2001a. Uniaxial tension crack characteristics of loess. J. Hydroelectr. Eng. 4, 44-48.
    Derbyshire, E., Mellors, T.W., 1988. Geological and geotechnical characteristics of some loess and loessic soils from China and Britain:a comparison. Eng. Geol. 25 (2-4), 135-175.
    Derbyshire, E., Dijkstra, T.A., Smalley, I.J., Li, Y., 1994. Failure mechanisms in loess and the effects of moisture content changes on remolded strength. Quat. Int. 24, 5-15.
    Derbyshire, E., Dijkstra, T.A., Smalley, I.J. (Eds.), 1995. Genesis and Properties of Collapsible Soils. NATO ASI Series C, vol. 468, Kluwer Academic Publishers, Dordrecht, The Netherlands, pp. 267-293.
    Derbyshire, E., 2001. Geological hazards in loess terrain, with particular reference to the loess regions of China. Earth-Sci. Rev. 54 (1-3), 231-260.
    Dijkstra, T.A., Rogers, C.D.F., Smalley, I.J., Derbyshire, E., Li, Y.J., Meng, X.M., 1994. The loess of North-Central China:Geotechnical properties and their relation to slope stability. Eng. Geol. 36, 153-171.
    Dijkstra, T.A., Smalley, I.J., Rogers, C.D.F., 1995. Particle packing in loess deposits and the problem of structure collapse and hydro consolidation. Eng. Geol. 40 (1-2), 49-64.
    Feda, J., 1988. Collapse of loess upon wetting. Eng. Geol. 25 (2-4), 263-269.
    Fredlund, D.G. and Rahardjo, H., 1993. Soil Mechanics for Unsaturated Soils. Wiley, New York, NY, USA.
    Gao, G.R., 1984. Microstructure of loess soil in china relative to geologic environment. Acta Geol. Sin. 58 (3), 265 (in Chinese).
    Gao, G.R., 1988. Formation and development of the structure of collapsing loess in China. Eng. Geol. 25 (2), 235-245 (in Chinese).
    Garakani, A.A., Haeri, S.M., Khosravi, A., Habibagahi, G., 2015. Hydro-mechanical behavior of undisturbed collapsible loessial soils under different stress state conditions. Eng. Geol. 195, 28-41.
    He, C.X., 2013. How to develop modern agriculture in Yan'an on the basis of the Gully Reclamation Project. Yan'an Univ. (Soc. Sci.) 35, 3.
    Hou, X. K., Vanapalli, S. K. and Li, T. L., 2019. Water infiltration characteristics associated with years of irrigation activities and its influence on the slope stability of Heifangtai Loess Highland in China. Engineering Geology, 243, 27-37.
    Hou, X., Vanapalli, S. K., & Li, T., 2019. Wetting-induced collapse behavior associated with infiltration:A case study. Engineering Geology, 258, 105146.
    Hungr, O., Leroueil, S., Picarelli, L., 2014. The Varnes classification of landslide types, an update. Landslides 11 (2), 167-194.
    Jia, Y.J., 2016. Research on concrete retaining wall reinforced unsaturated loess slope. China Build. Mater. Sci. Technol 25 (4), 107-108 (in Chinese).
    Jiang, M., Li, T., Cui, Y., Zhu, H., 2017. Mechanical behavior of artificially cemented clay with open structure:cell and physical model analyses. Eng. Geol. 221, 133-142.
    Jin, Z., 2014. The creation of farmland by gully filling on the Loess Plateau:a double-edged sword. Environmental Science & Technology, 48(2):883-884.
    Jin, Z., Guo, L., Wang, Y., Yu, Y., Lin, H., Chen, Y., Chu, G., Zhang, J., Zhang, N., 2019. Valley reshaping and damming induce water table rise and soil salinization on the Chinese loess plateau. Geoderma, 339, 115-125.
    Juang, C.H., Dijkstra, T., Wasowski, J., Meng, X.M., 2019. Loess geohazards research in China:advances and challenges for mega engineering projects. Eng. Geol. 251, 1-10.
    Kruse, G.A.M., Dijkstra, A.M., Schokking, F., 2007. Effect of soil structure on soil behaviour:illustrated with loess, glacially loaded clay and simulated flaster bedding examples. Eng. Geol. 91, 34-45.
    Lambe, T.W., Whitman, R.V., 1969. Soil mechanics, 553 pp.
    Lei, X.Y., 1987. Pore classification and collapsibility of loess in China. Sci. China. 12, 1309-1318 (in Chinese).
    Lei, X.Y., 2001. Geo-hazards in Loess Plateau and Human Activity. Science Press, Beijing, pp. 258-264 (in Chinese).
    Li, G.X., Zhang, B.Y., Yu, Y.Z., 2013. Soil mechanics. Tsinghua University Press, Beijing, 184 pp (in Chinese).
    Li, T.L., Wang, H., Fu, Y.K., Liang, Y., 2014. Test Simulation on the forming mechanism of loess vertical joints. J. Earth Sci. Environ. 36 (2), 127-134.
    Li, Y., and Mo, P. (2019). A unified landslide classification system for loess slopes:A critical review. Geomorphology. 340, 67-83.Zhang, M.S., Cheng, X.J., Dong, Y., Yu, G.Q., Zhu, L.F., Pei, Y., 2013. The effect of frozen stagnant water and its impact on slope stability:a case study of Heifangtai, Gansu Province. Geol. Bull. China 32 (6), 852-860.
    Li, Y.H., Du, G.M., Liu, Y.S., 2016. Transforming the Loess Plateau of China. Front. Agric. Sci. Eng., 3, 181-185.
    Li, Y.R., 2017. A review of shear and tensile strengths of the Malan Loess in China. Engineering Geology, 4-10.
    Li, Y.R., Zhang, W.W., He, S.D., Adnan, A.,2020. Wetting-driven formation of present-day loess structure. Geoderma,377, 114564.
    Li, Z,Q., Hu, F., Qi, S.W., Hu, R.L., 2020. Strain-softening failure mode after the post-peak as a unique mechanism of ruptures in a frozen soil-rock mixture. Eng. Geol. 274, 105725.
    Lin, Z.G., Xu, Z.J., Zhang, M.S., 2008. Loess in China and Landslides in Loess Slopes. Taylor & Francis group, CRC Press, London, pp. 129-144.
    Liu, A., Li, Y., Zhang, F., Xue, X., 2008. Study on the soil water dynamics of Kobresia humilis meadow in growing season. J. Arid Land Resour. Environ. 22, 130-135 (in Chinese).
    Liu, C., Ding, L., 2002. Conventional triaxial test of unsaturated loess strength characteristics study. Geol. Prospect. 42 (5), 89-91.
    Liu, T.S., 1985. Loess and the Environment. Science Press, Beijing (in Chinese).
    Liu, Y.S., Li, Y.H., 2014. China's land creation project stands firm. Nature, (511):410.
    Liu, Y.S., Li, Y.R., 2017. Engineering philosophy and design scheme of gully land consolidation in Loess Plateau. Trans. Chin. Soc. Agric. Eng., 33, 1-9 (in Chinese).
    Luo, H., Wu, F.Q, Chang, J.Y., Xu, J.B., 2017. Microstructural constraints on geotechnical properties of Malan Loess:A case study from Zhaojiaan landslide in Shaanxi province, China. Engineering Geology, 60-69.
    Luo, Y., Xing, Y., 1998. Tensile strength characteristics of loess. J. Shaanxi Water Power 14(4), 6-8 (in Chinese).
    Ma, L.N., Qi, S.W., Zheng, B.W., Guo, S.F., Huang, Q.B., Yu, X.B., 2020. Farming influence on physical-mechanical properties and microstructural characteristics of backfilled loess farmland in Yan'an, China. Sustainability, 12, 5516.
    Meng, X.M., Xu, Y.H., Guo, T., Zhang, S.W., 1991. Research of Jiaoshuwan and Taishanmiao landslides in Tianshui city. J. Gansu Sci 3 (2), 36-43 (in Chinese).
    Northwest Research Institute, Academy of Sciences of Ministry of Railways, 1975. Landslide Control. People Railway Press, Beijing, China (in Chinese).
    Peng, J.B., Lin, H.Z., Wang, Q.Y., Zhuang, J.Q., Cheng, Y.X., Zhu, X.H., 2014. The critical issues and creative concept in mitigation research of loess geological hazards. J. Eng. Geol. 22 (4), 684-691 (in Chinese).
    Peng, J.B., Wu, D., Duan, Z., Tang, D.Q., Cheng, Y.X., Che, W.Y., Huang, W.L., Wang, Q.Y., Zhuang, J.Q., 2016a. Disaster characteristics and destructive mechanism of typical loess landslide cases triggered by human engineering activities. J. Southwest Jiaotong Univ. 51, 971-980 (in Chinese).
    Peng, D., Xu, Q., Qi, X., Fan, X., Dong, X., Li, S., Ju, Y., 2016b. Study on early recognition of loess landslides based on field investigation. Int. J. Geohazards Environ. 2 (2), 32-52.
    Peng, J.B., Zhang, F.Y., Wang, G.H., 2017. Rapid loess flow slides in Heifangtai terrace, Gansu, China. Q. J. Eng. Geol. Hydrogeol. 50, 106-110.
    Peng, J.B.,Fan, Z.J.,Wu, D.,Huang, Q.B., Wang, Q.Y., Zhuang, J.Q., Che, W.Y., 2019b. Landslides triggered by excavation in the loess plateau of China:A case study of Middle Pleistocene loess slopes. Journal of Asian Earth Sciences, 171:246-258.
    Peth, S., Nellesen, J., Fischer, G., Horn, R., 2010. Non-invasive 3D analysis of local soil deformation under mechanical and hydraulic stresses by μCT and digital image correlation. Soil Till. Res. 111, 3-18.
    Rogers, C.D.F., Dijkstra, T.A., Smalley, I.J., 1994. Hydroconsolidation and subsidence of loess:studies from China, Russia, North America and Europe:in memory of Jan Sajgalik. Eng. Geol. 37 (2), 83-113.
    Sabatini, P.J., Finno, R.J., 1996. Effect of consolidation on strain localization of soft clays. Comput. Geotech. 18 (4), 311-339.
    Standardization Administration of China (SAC), Ministry of Water Resources, 1999. China National Standards GB/T50123-1999:Standard for Soil Test Method. China Planning Press, Beijing (243 pp) (in Chinese).
    Sun, P., Peng, J., Chen, L., Wang, Z., 2009. Experimental research on tensile fracture characteristics of loess. Chin. J. Geotech. Eng. 31 (6), 980-984.
    Tang, D., Yao, X., Peng, J., 2014. Loess joints development characteristics and space partition. Appl. Mech. Mater. 501-504, 312-317.
    Varnes, D.J., 1978. Slope movement types and processes. In:Schuster, Robert L., Krizek, Raymond J. (Eds.), Landslides, Analysis and Control, Special Report 176. Transportation Research Board, National Academy of Sciences, Washington, D.C., pp.11-33.
    Wang, G.A., Han, J.M., Liu, D.S., 2003. The carbon isotope composition of C3 herbaceous plants in loess area of northern China. Sci. China 46 (10), 1069-1076.
    Wang, G.L., Zhang, M.L., Su, T.M., Zeng, Q.M., 2011. Collapse failure modes and dem numerical simulation for loess slopes. J. Eng. Geol. 19 (4), 41-49 (in Chinese with English abstract).
    Wang, G.X., 1997. Sliding mechanism and prediction of critical sliding of Huangci landslide in Yongjing county, Gansu province. J. Catastrophol. 3, 23-27 (in Chinese).
    Wang, N.Q., Zhang, Z.Y., 2005. Study on Loess Landslide Disaster. Lanzhou University Press, 225p, Lanzhou (in Chinese).
    Wang, Y.Q., Shao, M., Shao, H.B., 2010. A preliminary investigation of the dynamic characteristics of dried soil layers on the Loess Plateau of China. J. Hydrol. 381 (1), 9-17.
    Wang, Y.Y., Lin, Z.G., 1990. Structural characteristics and physical-mechanical properties of Loess in China. Science Press, Beijing (in Chinese).
    Wang, Z., 1994. A study on the generating mechanism of vertical joints in loess. Sci. China Ser. B-chemistry Life Sci. Earth Sci. 37, 250.
    Wasowski, J., Bovenga, F., 2014. Investigating landslides and unstable slopes with satellite Multi Temporal Interferometry:current issues and future perspectives. Eng. Geol. 174, 103-138.
    Wasowski, J., Bovenga, F., 2015. Remote sensing of landslide motion with emphasis on satellite multitemporal interferometry applications:an overview. In:Davies, T. (Ed.), Landslide Hazards, Risks and Disasters, pp. 345-403.
    Wei, H.A., Wang, J.Y., 2013. Assessment of land consolidation suitability in Loess Hilly-gully Region in Yan'an City. Areal Res. Dev. 3, 129-132 (in Chinese).
    Wen, B.P., Yan, Y.J., 2014. Influence of structure on shear characteristics of the unsaturated loess in Lanzhou, China. Eng. Geol. 168, 46-58.
    William, P., 2004. Soil Mechanics, Concepts and Applications. Taylor & Francis Inc, London.
    Xu, L., Dai, F.C., Tham, L.G., Tu, X.B., Jin, Y.L., 2011. Landslides in the transitional slopes between a loess platform and river terrace, northwest China. Environ. Eng. Geosci. 17, 267-279.
    Xu, L., Dai, F.C., Gong, Q.M., Tham, L.G., Min, H., 2012. Irrigation-induced loess flow failure in Heifangtai platform, north-west China. Environ. Earth Sci 66 (6), 1707-1713.
    Xu, L., Dai, F., Tu, X., Tham, L.G., Zhou, Y., Iqbal, J., 2014. Landslides in a loess platform, North-West China. Landslides 11 (6), 993-1005.
    Yang, L., Wei, W., Chen, L., Mo, B., 2012. Response of deep soil moisture to land use and afforestation in the semi-arid Loess Plateau, China. J. Hydrol. 475, 111-122.
    Yao, Q.L., Chen, T., Tang, C.J, Sedighi, M., Wang, S.W., Huang, Q.X., 2019. Influence of moisture on crack propagation in coal and its failure modes. Engineering Geology. 258, 105156.
    Ye, W.J., Yang, G.S., Peng, J.B., Huang, Q.B., Xu, Y.F., 2012. Test research on mechanism of freezing and thawing cycle resulting in loess slope spalling hazards in Luochan. Chin. J. Rock Mech. Eng. 31 (1), 199-205 (in Chinese with English abstract).
    Zhang, F.Y., Wang, G.H., Kamai, T., Chen, W.W., 2014. Effect of pore-water chemistry on undrained shear behaviour of saturated loess. J. Eng. Geol. Hydrogeol. 47, 201-210.
    Zhang, F.Y., Wang, G.H., 2018. Effect of irrigation-induced densification on the post-failure behavior of loess flow slides occurring on the Heifangtai area, Gansu, China. Eng. Geol. 236 (26), 111-118.
    Zhang, Y., Meng, X., Jordan, C., Novellino, A., Dijkstra, T., Chen, C., 2018. Investigating slow-moving landslides in the Zhouqu region of China using InSAR time series. Landslides 15 (7), 1299-1315.
    Zhang, Y.S., Qu, Y.X., 2004. Quantitative research on clay mineral composition of the Malan Loess form the Loess Plateau in China. Geol. Rev. 50 (5), 530-537 (in Chinese with English abstract).
    Zhuang, J.Q., Iqbal, J., Peng, J.B., Liu, T.M., 2014. Probability prediction model for landslide occurrences in Xi'an, Shaanxi Province, China. J. Mt. Sci. 11 (2), 345-359.
    Zhuang, J.Q., Peng, J.B., 2014. A coupled slope cutting-a prolonged rainfall-induced loess landslide:a 17 October 2011 case study. Bull. Eng. Geol. Environ. 73 (4), 997-1011.
    Zhuang, J.Q., Peng, J.B., Wang, G.H., Iqbal, J., Wang, Y., Li, W., Xu, Q., Zhu, X.H., 2017. Prediction of rainfall-induced shallow landslides in the Loess Plateau, Yan'an, China, using the TRIGRS model. Earth Surf. Process. Landf. 42 (6), 915-927.
    Zhuang, J.Q., Peng, J.B., Wang, G.H., Javed, I., Wang, Y., Li, W., 2018. Distribution and characteristics of landslide in Loess Plateau:a case study in Shaanxi province. Eng. Geol. 236, 89-96.
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