Abstract
The soft wet alluvial silt is widely distributed material in the world. In order to improve the bearing capacity and decrease the traffic-load-induced settlement of silt subsoil, the shallow subsoil always treats with the unslaked lime. However, the mitigating effect of this ground treatment method on traffic-load-induced settlement of alluvial silt subsoil is inconclusive. Therefore, with the developed falling weight simulation equipment of traffic load, in situ tests are carried out on the natural and unslaked lime treated alluvial silt ground in the Yellow River delta of China to study traffic-load-induced settlement. Furthermore, Chai-Miur cumulative deformation model of soil is employed to numerically simulate the long-term traffic-load-induced cumulative settlement. In situ test results indicate that because unslaked lime treatment enhances wave impedance of the reinforced soil layer, the wheel-load-induced dynamic stress and excess pore water pressure in the substratum decreases. The decrease of excess pore water pressure reduces the cumulative settlement of unslaked lime treated subsoil. For short-term cumulative settlement, there are differences between tested and calculated results, but not much. The calculated results imply that after opening to traffic for 10 years, compared with the natural ground, the cumulative settlement of the unslaked lime treated subsoil reduces by about 21%, and the change of transverse slope of pavement induced by cumulative settlement decreases by 1/3. In situ test and numerical calculation results demonstrate that shallow layer treatment with unslaked lime can effectively mitigate the cumulative settlement of alluvial silt subsoil.
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Abdelkrim, M., Bonnet, G., Buhan, P.D.: A computational procedure for predicting the long term residual settlement of a platform induced by repeated traffic loading. Comput. Geotech. 30(6), 463–476 (2003)
Akira, S., Lawalenna, S., Norihiko, M.: Partially-drained cyclic behavior and its application to the settlement of a low embankment road on silty-clay. Jpn. Geotech. Soc. 43(1), 33–46 (2003)
Chai, J.C., Miura, N.: Traffic-load-induced permanent deformation of road on soft subsoil. J. Geotech. Geoenviron. Eng. 128(11), 907–916 (2002)
Cui, X.Z.: Traffic-induced settlement of subgrade of low liquid limit silt in Yellow River delta. China Civil Eng. J. 45(1), 154–162 (2012). (in Chinese)
Fujiwara, H., Ue, S., Yasuhara, K.: Consolidation of alluvial clay under repeated loading. Soils Found. 25(3), 19–30 (1985)
Fujiwara, H., Ue, S.: Effect of preloading on post-construction consolidation settlement of soft clay subjected to repeated loading. Soils Found. 30(1), 76–86 (1990)
Huang, Y.H.: Pavement Analysis and Design. Pearson Education, Delhi (1993)
Indraratna, B., Rujikiatkamjorn, C., Ewers, B.: Class A prediction of the behavior of soft estuarine soil foundation stabilized by short vertical drains beneath a rail track. J. Geotech. Geoenviron. Eng. 136(5), 686–696 (2010)
Kamon, M.: Recent developments of soil improvement. In: Proceedings of International Symposium on Soil Improvement and Pile Foundation, Nanjing, China, vol. I, pp. 1–16 (1992)
Li, D., Selig, E.T.: Cumulative plastic deformation for fine-grained subgrade soils. J. Geotech. Eng. 122(12), 1006–1013 (1996)
Liu, J.K., Xiao, J.H.: Experimental study on the stability of railroad silt subgrade with increasing train speed. J. Geotech. Geoenviron. Eng. 136(6), 833–841 (2010)
Monismith, C.L., Ogawa, N., Freeme, C.R.: Cumulative deformation characteristics of subsoil due to repeated loading. Transp. Res. Rec. 537, 1–17 (1975)
Narasimha, R.S., Rajasekaran, G.: Reaction products formed in lime-stabilized marine clays. J. Geotech. Eng. 122, 329–336 (1996)
Seed, H.B., Chan, C.K., Monismith, C.L.: Effects of repeated loading on the strength and deformation of compacted clay. Highw. Res. Board Proc. 34, 541–558 (1955)
Seed, H.B., McNeill, R.L.: Soil deformation in normal compression and repeated loading test. Highw. Res. Board Bull. 141, 44–53 (1956)
Shahu, J.T., Yudhbir, Hayashi S.: Cumulative plastic strain and threshold stress of a Quasi-saturated compacted silty clay. Lowland Technol. Int. 10(2), 10–20 (2008)
Shen, Z.J.: Earth pressure of clay based on effective consolidation stress theory. Chinese J. Geotech. Eng. 22(3), 353–356 (2000). (in Chinese)
Wang, X.: Test on dynamic stress of roadbed and pavement under heavy loads. J. Vib. Shock 26(2), 169–173 (2007). (in Chinese)
Yildirim, H., Erşan, H.: Settlements under consecutive series of cyclic loading. Soil Dyn. Earthq. Eng. 27, 577–585 (2007)
Acknowledgements
This work was supported by the Chinese Natural Science Foundations (Nos. 51279094, 51078222 and 50708056), the Natural Science Foundations of Shandong Province, China (No. ZR2011EEM012) and the Independent Innovation Foundation of Shandong University (IIFSDU) (No. 2012HW003).
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Jin, Q., Cui, X., Su, J., Lu, T., Zhang, L., Wang, Z. (2019). In Situ Test of Traffic-Load-Induced Settlement of Alluvial Silt Subsoil Treated by Unslaked Lime. In: Sevi, A., Neves, J., Zhao, H. (eds) Enhancements in Applied Geomechanics, Mining, and Excavation Simulation and Analysis. GeoChina 2018. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-319-95645-9_13
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