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http://dx.doi.org/10.12989/gae.2020.23.4.339

Assessment of the unconfined compression strength of unsaturated lateritic soil using the UPV  

Wang, Chien-Chih (Department of Civil Engineering and Geomatics, Cheng Shiu University)
Lin, Horn-Da (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology)
Li, An-Jui (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology)
Ting, Kai-En (Department of Civil and Construction Engineering, National Taiwan University of Science and Technology)
Publication Information
Geomechanics and Engineering / v.23, no.4, 2020 , pp. 339-349 More about this Journal
Abstract
This study investigates the feasibility of using the results of the UPV (ultrasonic pulse velocity) test to assess the UCS (unconfined compressive strength) of unsaturated soil. A series of laboratory tests was conducted on samples of unsaturated lateritic soils of northern Taiwan. Specifically, the unconfined compressive test was combined with the pressure plate test to obtain the unconfined compressive strength and its matric suction (s) of the samples. Soil samples were first compacted at the designated water content and subsequently subjected to the wetting process for saturation and the following drying process to its target suction using the apparatus developed by the authors. The correlations among the UCS, s and UPV were studied. The test results show that both the UCS and UPV significantly increased with the matric suction regardless of the initial compaction condition, but neither the UCS nor UPV obviously varied when the matric suction was less than the air-entry value. In addition, the UCS approximately linearly increased with increasing UPV. According to the investigation of the test results, simplified methods to estimate the UCS using the UPV or matric suction were established. Furthermore, an empirical formula of the matric suction calculated from the UPV was proposed. From the comparison between the predicted values and the test results, the MAPE values of UCS were 4.52-9.98% and were less than 10%, and the MAPE value of matric suction was 17.3% and in the range of 10-20%. Thus, the established formulas have good forecasting accuracy and may be applied to the stability analysis of the unsaturated soil slope. However, further study is warranted for validation.
Keywords
unsaturated soil; matric suction; unconfined compressive strength; ultrasonic pulse velocity; prediction model;
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1 Yang, S.R., Lin, H.D., Kung, H.S.J. and Huang, W.C. (2008), "Suction-controlled laboratory test on resilient modulus of unsaturated compacted subgrade soils", J. Geotech. Geoenviron. Eng., 134(9), 1375-1384. https://doi.org/10.1061/(ASCE)1090-0241(2008)134:9(1375).   DOI
2 Yang, S.R., Lin, H.D., Kung, H.S.J. and Liao, J.Y. (2008), "Shear wave velocity and suction of unsaturated soil using bender element and filter paper method", J. GeoEng., 3(2), 67-74. https://doi.org/10.6310/jog.2008.3(2).4.
3 Yilmaz, T. and Ercikdi, B. (2016), "Predicting the uniaxial compressive strength of cemented paste backfill from ultrasonic pulse velocity test", Nondestruct. Test. Eval., 31(3), 247-266. https://doi.org/10.1080/10589759.2015.1111891.   DOI
4 Yilmaz, T., Ercikdi, B., Karaman, K. and Kulekci, G. (2014), "Assessment of strength properties of cemented paste backfill by ultrasonic pulse velocity test", Ultrasonics, 54(5), 1386-1394. https://doi.org/10.1016/j.ultras.2014.02.012.   DOI
5 Zhang, L.L., Fredlund, D.G., Fredlund, M.D. and Wilson, G.W. (2014), "Modeling the unsaturated soil zone in slope stability analysis", Can. Geotech. J., 51(12), 1384-1398. https://doi.org/10.1139/cgj-2013-0394.   DOI
6 Asslan, M. and Wuttke, F. (2012), Wave Velocity Change and Small-Strain Stiffness in Unsaturated Soils: Experimental Investigation, in Unsaturated Soils: Research and Applications. Springer, Berlin, Heidelberg, Germany.
7 Basu, D., Misra, A. and Puppala A.J. (2015), "Sustainability and geotechnical engineering: Perspectives and review", Can. Geotech. J., 52(1), 96-113. http://doi.org/10.1139/cgj-2013-0120.   DOI
8 Bhange, N.A. and Nandagawali, P.R. (2018), "Engineering characterization of clayey soil by ultrasonic pulse velocity tests", Int. J. Eng. Sci., 21-26.
9 Breysse, D. (2012), "Nondestructive evaluation of concrete strength: An historical review and a new perspective by combining NDT methods", Constr. Build. Mater., 33, 139-163. https://doi.org/10.1016/j.conbuildmat.2011.12.103.   DOI
10 Byun, Y.H., Lee, J.S., Cho, S.H. and Yoon, H.K. (2013), "Evaluation of void ratio and elastic modulus of unsaturated soil using elastic waves", Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, France, September.
11 Dong, Y. and Lu, N. (2016), "Dependencies of shear wave velocity and shear modulus of soil on saturation", J. Eng. Mech., 142(11), 04016083. https://doi.org/10.1061/(ASCE)EM.1943-7889.0001147.   DOI
12 Ng, C.W.W., Sadeghi, H., Hossen, B., Chiu, C.F., Alonso, E.E. and Baghbanrezvan, S. (2016), "Water retention and volumetric characteristics of intact and re-compacted loess", Can. Geotech. J., 53(8), 1258-1269. https://doi.org/10.1139/cgj-2015-0364.   DOI
13 Oh, W.T. and Vanapalli, S.K. (2011), "Modelling the applied vertical stress and settlement relationship of shallow foundations in saturated and unsaturated sands", Can. Geotech. J., 48(3), 425-438. https://doi.org/10.1139/T10-079.   DOI
14 Rahardjo, H., Meilani, I., Leong, E.C. and Rezaur, R.B. (2009), "Shear strength characteristics of a compacted soil under infiltration conditions", Geomech. Eng., 1(1), 35-52. https://doi.org/10.12989/gae.2009.1.1.035.   DOI
15 Chae, J., Kim, B., Park, S.W. and Kato, S. (2010), "Effect of suction on unconfined compressive strength in partly saturated soils", KSCE J. Civi. Eng. 14(3), 281-290. https://doi.org/10.1007/s12205-010-0281-7.   DOI
16 Cho, G.C. (2016), "Geotechnical engineering for sustainable development", Proceedings of the 2016 World Congress on Advances in Civil, Environmental and Materials Research (ACEM16), Jeju, Korea, August.
17 Ercikdi, B., Yilmaz, T. and Kulekci, G. (2014), "Strength and ultrasonic properties of cemented paste backfill", Ultrasonics 54(1), 195-204. http://doi.org/10.1016/j.ultras.2013.04.013.   DOI
18 Tang, G.X., Graham, J., Blatz, J., Gray, M. and Rajapakse, R.K.N.D. (2002), "Suctions, stresses and strengths in unsaturated sand-bentonite", Eng. Geol., 64(2-3), 147-156. https://doi.org/10.1016/S0013-7952(01)00108-9.   DOI
19 Selcuk, L. and Seker, V. (2018), "Predicting california bearing ratio of foundation soil using ultrasonic pulse velocity", Proc. Inst. Civ. Eng. Geotech. Eng., 172(4), 320-330. https://doi.org/10.1680/jgeen.18.00053.   DOI
20 Shou, K.J., Wu, C.C. and Lin, J.F. (2018), "Predictive analysis of landslide susceptibility under climate change conditions-a study on the Ai-Liao watershed in southern Taiwan", J. GeoEng., 13(1), 13-27. https://doi.org/10.6310/jog.201803_13(1).2.
21 Tang, Y., Taiebat, H.A. and Senetakis, K. (2017), "Effective stress based bearing capacity equations for shallow foundations on unsaturated soils", J. GeoEng., 12(2), 59-64. https://doi.org/10.6310/jog.2017.12(2).2.
22 Tekinsoy, M.A., Kayadelen, C., Keskin, M.S. and Soylemez, M. (2004), "An equation for predicting shear strength envelope with respect to matric suction", Comput. Geotech., 31(7), 589-593. https://doi.org/10.1016/j.compgeo.2004.08.001.   DOI
23 Hossain, A.M., Andrus, R.D. and Camp III, W.M. (2013), "Correcting liquefaction resistance of unsaturated soil using wave velocity", J, Geotech. Geoenviron. Eng., 139(2), 277-287. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000770.   DOI
24 Fredlund, D.G. and Xing, A. (1994), "Equations for the soil-water characteristic curve", Can. Geotech. J., 31(4), 521-532. https://doi.org/10.1139/t94-061.   DOI
25 Fredlund, D.G., Morgenstern, N.R. and Wider, R.A. (1978), "The shear strength of unsaturated soils", Can. Geotech. J., 15(3), 313-321. https://doi.org/10.1139/t78-029.   DOI
26 Galan-Marin, C., Rivera-Gomez, C. and Bradley, F. (2013), "Ultrasonic, molecular and mechanical testing diagnostics in natural fibre reinforced. polymer-stabilized earth blocks", Int. J. Polymer Sci., 1-10. http://doi.org/10.1155/2013/130582.
27 Vinay, A., Pradeepkumar, A.V. and Rajashekhara, M.R. (2018), "Alternate assessment of strength characteristics of clayey soil for compaction using ultrasonic pulse velocity method", Int. J. Eng. Tech., 7(2.1), 15-19. https://doi.org/10.14419/ijet.v7i2.1.9874.
28 Tsou, C.Y., Feng, Z.Y. and Chigira, M. (2011), "Catastrophic landslide induced by Typhoon Morakot. Shiaolin, Taiwan", Geomorphology, 127(3-4), 166-178. https://doi.org/10.1016/j.geomorph.2010.12.013.   DOI
29 Vanapalli, S.K., Fredlund, D.G. and Pufahl, D.E. (1999), "The influence of soil structure and stress history on the soil-water characteristics of a compacted till", Geotechnique, 49(2), 143-159. https://doi.org/10.1680/geot.1999.49.2.143.   DOI
30 Vilar, O.M. (2006), "A simplified procedure to estimate the shear strength envelope of unsaturated soils", Can. Geotech. J., 43(10), 1088-1095. https://doi.org/10.1139/t06-055.   DOI
31 Wang, C.C. and Wang, H.Y. (2017), "Assessment of the compressive strength of recycled waste LCD glass concrete using the ultrasonic pulse velocity", Constr. Build. Mater., 137, 345-353. https://doi.org/10.1016/j.conbuildmat.2017.01.117.   DOI
32 Wang, C.C., Kung, J.H.S., Liao, C.Y. and Lin, H.D. (2010), "Experimental study on matric suction of unsaturated soil upon drying and wetting", Proceedings of the 3rd International Conference on Problem Soils, Adelaide, Australia, April.
33 Wang, C.C., Wang, H.Y. and Huang, C. (2014), "Predictive models of hardened mechanical properties of waste LCD glass concrete", Comput. Concrete 14(5), 577-597. http://doi.org/10.12989/cac.2014.14.5.577.   DOI
34 Teng, L.S., Lee, C.T., Peng, C.H., Chen, W.F. and Chu, C.J. (2001), "Origin and geological evolution of the Taipei basin, northern Taiwan", Western Pacific Earth Sci., 1(2), 115-142.
35 Lewis, C.D. (1982), Industrial and Business Forecasting Method, Butterworth Scientific Publishers, London, U.K.
36 Yang, H., Rahardjo, H., Leong, E.C. and Fredlund, D.G. (2004), "Factors affecting drying and wetting soil-water characteristic curves of sandy soils", Can. Geotech. J., 41(5), 908-920. https://doi.org/10.1139/t04-042.   DOI
37 Yang, S.R., Lin, H.D. and Huang, W.H. (2012), "Variation of initial soil suction with compaction conditions for clayey soils", J. Mech., 28(3), 431-437. https://doi.org/10.1017/jmech.2012.52.   DOI
38 Hoyos, L.R., Velosa, C.L. and Puppala, A.J. (2014), "Residual shear strength of unsaturated soils via suction-controlled ring shear testing", Eng. Geol., 172, 1-11. https://doi.org/10.1016/j.enggeo.2014.01.001.   DOI
39 Huang, L.J. (2014), "Review of the research on debris flows in Taiwan during past thirty years", Int. J. Emerg. Technol. Adv. Eng., 4(12), 122-131.
40 Kim, Y., Park, H. and Jeong, S. (2017), "Settlement behavior of shallow foundations in unsaturated soils under rainfall", Sustainability, 9(8), 1-13. https://doi.org/10.3390/su9081417.
41 Li, Z.W. and Yang, X.L. (2018), "Stability of 3D slope under steady unsaturated flow condition", Eng. Geol., 242, 150-159. https://doi.org/10.1016/j.enggeo.2018.06.004.   DOI
42 Fredlund, D.G. and Morgenstern, N.R. (1977), "Stress state variables for unsaturated soils", J. Geotech. Geoenviron. Eng., 103(5), 447-466.
43 Whalley, W.R., Jenkins, M. and Attenborough, K. (2012), "The velocity of shear waves in unsaturated soil", Soil Till. Res., 125, 30-37. https://doi.org/10.1016/j.still.2012.05.013.   DOI
44 Wang, C.C., Wang, H.Y., Chen, C.H. and Huang, C. (2015), "Prediction of compressive strength using ultrasonic pulse velocity for CLSM with waste LCD glass concrete", J. Civ. Eng. Arch., 9, 691-700. https://doi.org/10.17265/1934-7359/2015.06.007.
45 Weidinger, D.M., Ge, L. and Stephenson, R.W. (2009), "Ultrasonic pulse velocity tests on compacted soil", Proceedings of the GeoHunan International Conference 2009, Changsha, Hunan, China, August.
46 Whalley, W.R., Jenkins, M. and Attenborough, K. (2011), "The velocity of shear waves in saturated soil", Soil Sci. Soc. Am. J., 75(5), 1652-1657. https://doi.org/10.2136/sssaj2010.0449.   DOI
47 Wu, T.Y. (2014), "The comprehensive slope-land disaster magnitude assessment for landslide and debris flow", Proceedings of the International Symposium 2014 on Natural Disaster Mitigation to Establish Society with the Resilience, Nara, Japan, November.
48 Xu, J.S. and Yang, X.L. (2018), "Three-dimensional stability analysis of slope in unsaturated soils considering strength nonlinearity under water drawdown", Eng. Geol., 237, 102-115. https://doi.org/10.1016/j.enggeo.2018.02.010.   DOI
49 Yagiz, S. (2011), "P-wave velocity test for assessment of geotechnical properties of some rock materials", B. Mater. Sci., 34(4), 947-953. https://doi.org/10.1007/s12034-011-0220-3.   DOI
50 Lin, H.D., Huang, J.R., Wang, W.C. and Chen, C.W. (2019), "Study of an unsaturated slope failure due to rainfall infiltration in Wenshan District of Taipei City", J. GeoEng., 14(4), 277-289. http://doi.org/10.6310/jog.201912_14(4).6.
51 Lin, H.D., Jiang, Y.S., Wang, C.C. and Chen, H.Y. (2016), "Assessment of apparent cohesion of unsaturated lateritic soil using an unconfined compression test", Proceedings of the 2016 World Congress on Advances in Civil, Environmental, and Materials Research (ACEM16), Jeju, Korea, August-September.
52 Lin, H.D., Kung, J.H.S., Wang, C.C., Liao, C.Y. and Tsai, M.F. (2010), "Stability analysis of unsaturated soil slope subjected to rainfall infiltration", Proceedings of the 4th Japan-Taiwan Joint Workshop on Geotechnical Hazards from Large Earthquakes and Heavy Rainfalls, Sendai, Japan, October.
53 Lin, H.D., Wang, C.C. and Jhou, B.H. (2017), "A study of the apparent cohesion and shear strength characteristics of unsaturated compacted lateritic soil", J. Technol., 32(3), 117-185.
54 Lin, H.D., Wang, C.C. and Kung, J.H.S. (2015), "Wetting and drying on matric suction of compacted cohesive soil", Proceedings, ISOPE-2015, the 25th International Ocean and Polar Engineering Conference, Kona, Big Island, Hawaii, U.S.A., June.
55 Lin, H.D., Wang, C.C. and Wang, X.H. (2018), "A simplified method to estimate the total cohesion of unsaturated soil using an UC test", Geomech. Eng., 16(6), 599-608. https://doi.org/10.12989/gae.2018.16.6.599.   DOI
56 Mahure, N.V., Vijh, G.K., Sharma, P., Sivakumar, N. and Ratnam, M. (2011), "Correlation between pulse velocity and compressive strength of concrete", Int. J. Earth Sci., 4(6), 871-874.
57 Nam, S., Gutierrez, M., Diplas, P. and Petrie, J. (2011), "Determination of the shear strength of unsaturated soils using the multistage direct shear test", Eng. Geol., 122(3-4), 272-280. https://doi.org/10.1016/j.enggeo.2011.06.003.   DOI