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http://dx.doi.org/10.12989/gae.2018.16.2.125

Geotechnical characteristics and consolidation properties of Tianjin marine clay  

Lei, Huayang (Department of Civil Engineering, Tianjin University)
Feng, Shuangxi (Department of Civil Engineering, Tianjin University)
Jiang, Yan (Terracon Consultants, Inc.)
Publication Information
Geomechanics and Engineering / v.16, no.2, 2018 , pp. 125-140 More about this Journal
Abstract
Tianjin, which is located on the west shore of the Bohai Sea, is part of China's Circum-Bohai-Sea Region, where very weak clay is deposited. From the 1970s to the early $21^{st}$ century, Tianjin marine clay deposits have been the subject of numerous geotechnical investigations. Because of these deposits' geological complexity, great depositional thickness, high water content, large void ratio, excessive settlement, and low shear strength, the geotechnical properties of Tianjin marine clay need to be summarized and evaluated based on various in situ and laboratory tests so that Tianjin can safely and economically sustain more infrastructure in the coming decades. In this study, the properties of Tianjin marine clay, especially its consolidation properties, are summarized, evaluated and discussed. The focus is on establishing correlations between the geotechnical property indexes and mechanical parameters of Tianjin marine clay. These correlations include the correlations between the water content and the void ratio, the depth and the undrained shear strength, the liquid limit and the compression index, the tip resistance and the constrained modulus, the plasticity index and the ratio of undrained shear strength and the preconsolidation pressure. In addition, the primary consolidation properties of Tianjin marine clay, such as the intrinsic compression line (ICL), sedimentation compression line (SCL), compression index, $C_c$, coefficient of consolidation, $C_v$, and hydraulic conductivity change index, $C_{kv}$, are evaluated and discussed. A secondary consolidation property, i.e., the secondary compression index, $C_a$, is also investigated, and the results show that the ratio of $C_a/C_c$ for Tianjin marine clay can be used to calculate $C_a$ in secondary consolidation settlement predictions.
Keywords
marine clay; consolidation; correlations; secondary consolidation;
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1 Brand, E.W. and Brenner, R.P. (1981), Soft Clay Engineering, Elsevier, New York, U.S.A.
2 Burland, J.B. (1990), "On the compressibility and shear strength of natural clays", Geotechnique, 40(3), 329-378.
3 Wu, C.J., Ye, G.L., Zhang, L.L., Bishop, D. and Wang, J.H. (2015), "Depositional environment and geotechnical properties of Shanghai clay: A comparison with Ariake and Bangkok clays", Bull. Eng. Geol. Environ., 74(3), 717-732.   DOI
4 Wu, Q. (2015), "Research on influence of bond water on secondary consolidation and long-term strength of soft clay", Ph.D. Dissertation, Jilin University, Changchun, China.
5 Xia, X.F., Xie, G.Y., Shi, X.B. and Xu, L. (2008), "Detection method of deviated group data based on confident interval", Comput. Eng., 34(21), 12-14 .
6 Yang, A. (2011), "Study on rheologic characteristics and its constitutive model of structured soft dredger fill", Ph.D. Dissertation, Tianjin University, Tianjin, China.
7 Yang, A., Yan, S., Du, D., Zhao, R. and Liu, J. (2010), "Experimental study of alkaline environment effects on the strength of cement soil of Tianjin marine soft soil", Rock Soil Mech., 31(9), 2930-2934.   DOI
8 Yang, T.L. and Gong, S.L. (2010), "Microscopic analysis of the engineering geological behavior of soft clay in Shanghai, China", Bull. Eng. Geol. Environ., 69(4), 607-615.   DOI
9 Yin, J., Hong, Z. and Gao, Y. (2009), "Yielding characteristics of natural soft Lianyungang clay", J. Southeast Univ. Nat. Sci. Ed., 39(5), 1059-1064.
10 Yoon, G.L., Kim, B.T. and Sang, S.J. (2011), "Empirical correlations of compression index for marine clay from regression analysis", Can. Geotech. J., 41(6), 1213-1221.   DOI
11 Wroth, C.P. (1984), "The interpretation of in situ soil tests", Geotechnique, 34(4), 449-489.   DOI
12 Zhang, H. (2010), "Research on mechanical analysis for Beijing-Tianjing-Tangshan expressway based on old road with three dimensional horizontal crack", M.Sc. Thesis, Changan University, Xi'an, China.
13 Chen, X., Zhu, H., Zhang, Z. and Zhang, B. (2005), "Experimental study on time-dependent deformation of soft soil", Chin. J. Rock Mech. Eng., 24(12), 2142-2148.   DOI
14 Cai, G., Liu, S., Tong, L. and Du, G. (2007), "Study on consolidation and permeability properties of Lianyungang marine clay based on piezocone penetration test", Chin. J. Rock Mech. Eng., 26(4), 846-852.   DOI
15 Cassagrande, A. (1932), "Research on the Atterberg limits of soils", Public Roads, 13(8), 121-136.
16 Chen, B., Xu, Q. and Sun, D. (2014), "An elastoplastic model for structured clays", Geomech. Eng., 7(2), 213-231.   DOI
17 Chung, S.G., Giao, P.H., Kim, G.J. and Leroueil, S. (2002), "Geotechnical properties of Pusan clays", Can. Geotech. J., 39(5), 1050-1060.   DOI
18 Dan, H. (2009), "Time dependent behavior of natural soft clays", Ph.D. Dissertation, Zhejiang Universtiy, Hangzhou, China.
19 Das, B.M. and Sobhan, K. (2013), Principles of Geotechnical Engineering, Cengage Learning.
20 Deng, Y.F., Cui, Y.J., Tang, A.M., Li, X.L. and Sillen, X. (2012), "An experimental study on the secondary deformation of Boom clay", Appl. Clay Sci., 59, 19-25.
21 Dolinar, B. (2009), "Predicting the hydraulic conductivity of saturated clays using plasticity-value correlations", Appl. Clay Sci., 45(1-2), 90-94.   DOI
22 Du, D.J., Yang, A.W., Liu, J., Liu, H.P., Zhao, R.B. and Zhao, J.J. (2010), New Dredger Fillings in Binhai District of Tianjin, China Science Press, Beijing, China.
23 Hong, Z. and Tsuchida, T. (1999), "On compression characteristics of Ariake clays", Can. Geotech. J., 36(5), 807-814.   DOI
24 Zhang, J., Huang, X. and Miao, L. (2006), "Research on engineering properties of Lianyungang soft clay", Chin. J. Highway Transport. Res. Dev., 23(2), 10-14.
25 Zheng, G., Zhang, X., Diao, Y. and Lei, H. (2016), "Experimental study on the performance of compensation grouting in structured soil", Geomech. Eng., 10(3), 335-355.   DOI
26 Du, Y.J., Liu, S.Y. and Hayashi, S. (2008), "Experimental study on the deterioration and natural remediation of the Ariake Sea tidal mud caused by the sea laver treatment acid practice and the upward seepage of pore water liquid", Environ. Geol., 55(4), 889-900.   DOI
27 Ebrahimian, B., Movahed, V. and Yousefnia Pasha, A.Y. (2012), "Evaluation of undrained shear strength of marine clay using cone penetration resistance at South Pars field in Iran", Ocean Eng., 54, 182-195.   DOI
28 Gao, Y.B. and Chen, Z.Q. (2017), "Analysis of the OCR of soft clay in coastal areas based on field vane strength", Chin. J. Rock Mech. Eng.
29 Hong, Z.S., Liu, Z.F., Guo, H.L. and Liu, S.Y. (2004), "Relationship between void index and normalized water content for natural sedimentary Ariake clays", Rock Soil Mech., 25(11), 1698-1701.   DOI
30 Horpibulsuk, S., Shibuya, S., Fuenkajorn, K. and Katkan, W. (2007), "Assessment of engineering properties of Bangkok clay", Can. Geotech. J., 44(2), 173-187.   DOI
31 Hui, H.E. (2010), "Analysis of consolidation historic characteristics of deep soft soil Embankment of Jiangmen-Zhuhai Highway", J. Railway Eng. Soc., 6, 12.
32 Jiang, M.J., Liu, J.D. and Yin, Z.Y. (2014), "Consolidation and creep behaviors of two typical marine clays in China", Chin. Ocean Eng., 28(5), 629-644.   DOI
33 Lei, H. and Xiao, S. (2002), "Study on secondary consolidation deformation characteristics of soft soil in Tianjin", Chin. J. Eng. Geol., 10(4), 385-389.
34 Mayne, P.W., Christopher, B.R. and DeJong, J. (2001), Manual on Subsurface Investigations, National Highway Institute Publication. FHWA NHI-01-031, Federal Highway Administration, Washington, D.C., U.S.A.
35 Lei, H., Li, B., Qiu, W., Lu, H. and Ren, Q. (2015), "Secondary consolidation characteristics of soft clay foundation of dredger fill site", Rock Soil Mech., 36(S1), 120-124.
36 Leroueil, S., Leart, P., Hight, D.W. and Powell, J.J.M. (1992), "Hydraulic conductivity of a recent estuarine silty clay at Bothkennar", Geotechnique, 42(2), 275-288.
37 Liu, Y. (2008), "Study on engineering proverty and application of constivtutive model for Ningbo soft clay", Ph.D. Dissertation, Zhejiang University, Hangzhou, China.
38 Ma, J. (2014), "Analysis on consolidation of marine soft soil in Tianjin region", Subgrade Eng., 5, 153-157.
39 Mayne, P.W. (1991), "Determination of OCR in clays by piezocone tests using cavity expansion and critical state concepts", Soils Found., 31(2), 65-76.   DOI
40 Mesri, G. and Castro, A. (1987), "$C_{\alpha}/C_c$ concept and $K_{0}$ during secondary compression", J. Geotech. Eng. 113(3), 230-247.   DOI
41 Park, D.S. (2016), "Rate of softening and sensitivity for weakly cemented sensitive clays", Geomech. Eng., 10(6), 827-836.   DOI
42 Mesri, G. and Funk, J.R. (2015), "Settlement of the Kansai International Airport islands", J. Geotech. Geoenviron. Eng., 141(2), 04014102.   DOI
43 Miao, L., Zhang, J. and Chen, Y. (2007), "Study on compressibility of Jiangsu marine clay", Chin. J. Geotech. Eng., 29(11), 1711-1714.   DOI
44 Ministry of Water Resources of the People's Republic of China (1999), Specification of Soil Test (SL237-1990), China Communications Press, Beijing, China.
45 Shu, X. (2013), "Study of mechanism and countermeasure on asymmetric settlement of soft soil subgrade", Ph.D. Dissertation, Tianjin University, Tianjin, China.
46 Terzaghi, K. (1925), "Principles of soil mechanics, IV-settlement and consolidation of clay", Eng. News Rec., 95(3), 874-878.
47 Sun, D., Chen, L., Zhang, J. and Zhou, A. (2015), "Bifurcation analysis of over-consolidated clays in different stress paths and drainage conditions", Geomech. Eng., 9(5), 669-685.   DOI
48 Tanaka, H., Locat, J., Shibuya, S., Soon, T.T. and Shiwakoti, D.R. (2001), "Characterization of Singapore, Bangkok, and Ariake clays", Can. Geotech. J., 38(2), 378-400.   DOI
49 Tavenas, F., Jean, P., Leblond, P. and Leroueil, S. (1983), "The permeability of natural soft clays. Part II: Permeability characteristics", Can. Geotech. J., 20(4), 645-660.   DOI
50 Teng, J. and Xiong, C. (2008), "Study of rheology based on soft soil structure", J. Changsha Univ., 5, 50-53.
51 Tianjin Construction Management Committee (2009), Technical Specification for Division of Subsoil Sequence in Tianjin (DB/T29-191-2009), Communications Press, Beijing, China.
52 Wang, C., Yan, S. and Zhang, R. (2007), "Determination of the parameters of visco-elastic-plasticity model for creep of soft clay", Rock Soil Mech., 28, 220-224.
53 Wang, N. and Wei, R. (1994), "Comparative analysis of sampling quanlity for coastal soft clay", Chin. J. Eng. Geol., 2(2), 66-75.
54 Wang, X. (2014), "Research of accelerated creep properties and microscopic mechanism on soft clay", M.Sc. Thesis, Tianjin University, Tianjin, China.
55 Wei, D. and Hu, Z. (1980), "Experimental study of preconsolidation on pressure and compressibility parameters of Shanghai subsoil", Chin. J. Geotech. Eng., 2(4), 13-22.
56 Wei, S., Zheng, G. and Liu, C. (2010), "Experimental studies on unloading deformation properties of soft clay in Binhai New Area", Hydrogeol. Eng. Geol., 37(5), 77-82.   DOI
57 Bjerrum, L. (1973), "Problems of soil mechanics and construction of soft clays and structurally unstable soils", Proceedings of the International Conference on Soil Mechanics and Foundation Engineering, Moscow, Russia, August.
58 Al-Shamrani, M.A. (1998), "Application of the $C_a/C_c$ , concept to secondary compression of sabkha soils", Can. Geotech. J., 35(35), 15-26.   DOI
59 Arulrajah, A. and Bo, M.W. (2008), "Characteristics of Singapore marine clay at Changi", Geotech. Geol. Eng., 26(4), 431-441.   DOI