Abstract
The increased reclamation in worldwide range induces significant consolidation and subsequent brings about serious settlement in the long term. In order to capture the consolidation characteristics by the surcharge method, a modified oedometer apparatus, which is allowed to measure the K 0 , elastic wave velocity, is employed to clarify the relationship among settlement elastic stiffness and K 0 . The variation of elastic wave velocity including shear wave and compression wave velocity are recorded by bender-extender element. The signal is optimized and the crosstalk is eliminated in the tests. Due to the sensitivity in shear and compression wave velocity (V s and V p ) of the solid and fluid, the ratio of soil particle to water is indicated by variation of V p and V s during the loading. Overall, the preliminary results show that the bender extend element is a sound tool to record the elastic wave velocity and derived elastic stiffness. The mutative K 0 can be monitored obviously.
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References
Cao, X.Y.: Reclamation method. Water Resources and Hydropower Press, Beijing (2006)
Chang, I.H., Cho, G.C., Lee, J.G., et al.: Characterization of clay sedimentation using piezoelectric bender elements. Key Eng. Mater. 321–323(5), 1415–1420 (2006)
Chu, J., Bo, M.W., Choa, V.: Practical considerations for using vertical drains in soil improvement projects. Geotext. Geomembr. 22(1–2), 101–117 (2004)
Chu, J., Yan, S.W., Yang, H.: Soil improvement by the vacuum preloading method for an oil storage station. Géotechnique 50(6), 625–632 (2015)
Chu, J., Yan, S.W., Yang, H.: Soil improvement by the vacuum preloading method for an oil storage station. Geotechnique 50(6), 625–632 (2000)
Cognon, J.M., Juran, I., Thevanayagam, S.: Vacuum consolidation technology - principles and field experience. In: Vertical and Horizontal Deformations of Foundations and Embankments, pp. 1237–1248. ASCE (1994)
Greening, P.D., Lings, M.L.: A novel bender/extender element for soil testing. Géotechnique 51(8), 713–717 (2001)
Hyungkoo, Y., Soonhyuck, J., Hong, S.J., et al.: Evaluation of stiffness and void ratio by field velocity probe in soft soils. In: GeoFlorida 2010: Advances in Analysis, Modeling & Design, pp. 940–949 (2010)
Indraratna, B., Rujikiatkamjorn, C., Sathananthan, I.: Analytical and numerical solutions for a single vertical drain includi. Can. Geotech. J. 42(4), 994–1014 (2005)
Johnson, S.J.: Precompression for improving foundation soils. J. Soil Mech. Found. Div. 96, 111–144 (1969)
Jung, J.W., Park, C.S., Mok, Y.J.: Development of buried sensors for stiffness measurements of soft clays using bender elements. In: Geotechnical Earthquake Engineering and Soil Dynamics Congress IV, pp. 1–10 (2008)
Ku, T., Mayne, P.W.: Evaluating the in situ lateral stress coefficient of soils via paired shear wave velocity modes. J. Geotech. Geoenviron. Eng. 139(5), 775–787 (2013)
Lee, J.S., Santamarina, J.C.: Bender elements: performance and signal interpretation. J. Geotech. Geoenviron. Eng. 131(9), 1063–1070 (2005)
Lok, T.M.H., Shi, X., Wu, S.: Variation of shear wave velocity of Macao marine clay during secondary consolidation. J. Agric. Food Chem. 2(15), 587–590 (2015)
Richard, F.E., Woods, R.E., Hall, Jr., J.R.: Vibration of Soils and Foundations (1970)
Rujikiatkamjorn, C., Indraratna, B.: Environmental sustainability of soft soil improvement via vacuum and surcharge preloading (2014)
Sas, W., Malinowska, E.: Surcharging as a method of road embankment construction on organic soils. In: IAEG Congress (2006)
Shirley, D.J., Hampton, L.D.: Shear-wave measurements in laboratory sediments. J. Acoust. Soc. Am. 63(2), 607–613 (1978)
Yan, S.W., Chu, J.: Soil improvement for a road using the vacuum preloading method. Proc. Inst. Civil Eng. Ground Improv. 7(4), 165–172 (2003)
Alshibli, K.A., Fratta, D.: Combined TDR and P-wave velocity measurements for the determination of in situ soil density-experimental study. Geotech. Testing J. 28(6), 553–563 (2005)
Holtz, R.D.: Preloading by vacuum: current prospects (1975)
Chen, H., Bao, X.Q.: Consolidation effective stresses in soil under the negative pressure condition. Chin. J. Geotech. Eng. 5, 39–47 (1984)
Islam, M.N., Gnanendran, C.T., Sivakumar, S.T.: Long-term time dependent behaviour of surcharged preloaded embankment. Geotech. Spec. Publ. 234, 2970–2977 (2014)
Acknowledgments
The work reported here is supported by the Zhejiang Natural Science Foundation (No. LY17E080012), the National Key Research and Development Program of China (No. 2016YFC0800201) and partially by the Wenzhou Technological Planning Program (No. G20160009). The authors would like to express their appreciation to the financial assistance.
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Li, B., Wang, Y., Jin, Q.b. (2018). Geotechnical Properties of Dredged Fill: Simultaneous Measurement of Consolidation Characteristics, Elastic Wave Velocity and K 0 . In: Zhou, A., Tao, J., Gu, X., Hu, L. (eds) Proceedings of GeoShanghai 2018 International Conference: Fundamentals of Soil Behaviours. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0125-4_13
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DOI: https://doi.org/10.1007/978-981-13-0125-4_13
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