Abstract
Soil microstructure affects the physical and mechanical properties of a loess; current methods used for measuring pore size distribution (POSD) inside loess samples, however, have certain limitations. To investigate the intrinsic connection between soil–water characteristic curve (SWCC) and pore size distribution curves, water potential, moisture content, and nuclear magnetic resonance (NMR) tests on compacted loess with different dry densities were undertaken to obtain a SWCC and an NMR T2 curve. The Van Genuchten (VG) model was used to satisfactorily fit SWCC and POSD curves of samples with different dry densities. Results indicated that the shape and changing trend of SWCC and cumulative POSD curves were very similar. The evolution mechanism of SWCC was investigated by comparing POSD and SWCC of different dry density specimens. Thus, the modified VG model can fit the cumulative POSD very well. As SWCC and cumulative POSD curve fitting parameters were found to have a linear relationship, indicating that SWCC strongly depends on soil POSD, the SWCC curve can, therefore, be used to predict the POSD curve. The matric suction corresponding to the inflection point of the SWCC curve has a one-to-one correspondence with the relaxation time corresponding to the peak of the T2 curve. Based on the results, an equation for solving the transverse surface relaxation strength (\({\rho }_{2}\)) is proposed, which provides a new idea for the application of NMR in the soil field.
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References
ASTM (2006) ASTM D5333–03. Standard test method for measurement of collapse potential of soils. I. ASTM, West Conshohocken, Pa
Barden L, McGown A, Collins K (1973) The collapse mechanism in partly saturated soil. Eng Geol 7(1):49–60. https://doi.org/10.1016/0013-7952(73)90006-9
Beckett CTS, Augarde CE (2013) Prediction of soil water retention properties using pore-size distribution and porosity. Can Geotech J 50(4):435–450. https://doi.org/10.1139/cgj-2012-0320
Coates GR, Xiao L, Prammer MG (1999) NMR logging principles and applications. Halliburton Energy Services Publication, Houston
Dijkstra TA (2001) Geotechnical thresholds in the Lanzhou loess of China. Quatern Int 76–77(1):21–28. https://doi.org/10.1016/S1040-6182(00)00086-0
Feuerharmel C, Gehling WYY, Bica AVD (2006) The use of filter-paper and suction-plate methods for determining the soil–water characteristic curve of undisturbed colluvium soils. Geotech Test J 29(5):419–425. https://doi.org/10.1520/GTJ14004
Fredlund DG, Rahardjo H (1993) Soil mechanics for unsaturated soils. Wiley, Hoboken
Fredlund DG, Xing A (1994) Equations for the soil-water characteristic curve. Can Geotech J 31(4):521–534. https://doi.org/10.1139/t94-061
Gallage CPK, Uchimura T (2010) Effects of dry density and grain size distribution on soil-water characteristic curves of sandy soils. Soils Found 50(1):161–172. https://doi.org/10.3208/sandf.50.161
Hao Q, Guo Z, Qiao Y, Xu B, Oldfield F (2010) Geochemical evidence for the provenance of middle Pleistocene loess deposits in southern China. Quatern Sci Rev 29(23–24):3317–3326. https://doi.org/10.1016/j.quascirev.2010.08.004
Huang G, Zhang R (2005) Evaluation of soil water retention curve with the pore–solid fractal model. Geoderma 127(1–2):52–61. https://doi.org/10.1016/j.geoderma.2004.11.016
Ishizaki T, Maruyama M, Furukawa Y, Dash JG (1996) Premelting of ice in porous silica glass. J Cryst Growth 163(4):455–460. https://doi.org/10.1016/0022-0248(95)00990-6
Jiang MJ, Li T, Hu HJ, Thornton C (2014) DEM analyses of one-dimensional compression and collapse behaviour of unsaturated structural loess. Comput Geotech 60:47–60. https://doi.org/10.1016/j.compgeo.2014.04.002
Kawai K et al (2000) The model of water retention curve considering effects of void ratio., Unsaturated Soils for Asia Asian Conference on Unsaturated Soils.
Kenyon WE, Day PI, Straley C, Willemsen JF (1988) A three-part study of NMR longitudinal relaxation properties of water-saturated sandstones. SPE Form Eval 3(03):622–636. https://doi.org/10.2118/15643-PA
Kleinberg RL (2003) Deep sea NMR: methane hydrate growth habit in porous media and its relationship to hydraulic permeability, deposit accumulation, and submarine slope stability. J Geophys Res 108(10):2508. https://doi.org/10.1029/2003JB002389
Kong L, Sayem HM, Tian H (2017) Influence of drying-wetting cycles on soil-water characteristic curve of undisturbed granite residual soils and microstructure mechanism by NMR T2 relaxometry. Can Geotech J. https://doi.org/10.1139/cgj-2016-0614
Li XA, Li L (2017) Quantification of the pore structures of Malan loess and the effects on loess permeability and environmental significance, Shaanxi Province, China: an experimental study. Environ Earth Sci 76(15):523. https://doi.org/10.1007/s12665-017-6855-7
Lei XY (1988) The types of loess pores in china and their relationship with collasibility. Sci China Chem 31(11):1398–1411
Leong EC, He L, Rahardjo H (2002) Factors affecting the filter paper method for total and matric suction measurements. Geotech Test J 25(3):322–333. https://doi.org/10.1520/GTJ11094J
Li P, Qian H, Wu J (2014a) Environment: Accelerate research on land creation. Nature 510(7503):29–31. https://doi.org/10.1038/510029a
Li P, Wu J, Qian H, Lyu X, Liu H (2014b) Origin and assessment of groundwater pollution and associated health risk: a case study in an industrial park, northwest China. Environ Geochem Health 36(4):693–712. https://doi.org/10.1007/s10653-013-9590-3
Li P et al (2016) Hydrogeochemical characterization of groundwater in and around a wastewater irrigated forest in the southeastern edge of the Tengger Desert. Northwest China Exposure Health 8(3):331–348. https://doi.org/10.1007/s12403-016-0193-y
Li X et al (2019) Characterization of the mechanisms underlying loess collapsibility for land-creation project in Shaanxi Province, China—a study from a micro perspective. Eng Geol 249:77–88. https://doi.org/10.1016/j.enggeo.2018.12.024
Liu Y, Cao GZ, Meng YG, Liu MX (2013) Study on the microstructure feature and strength mechanism of the Tien lake peat soil. Adv Mater Res 864–867:2695–2702. https://doi.org/10.4028/www.scientific.net/AMR.864-867.2695
Lu N, Khorshidi M (2015) Mechanisms for soil-water retention and hysteresis at high suction range. J Geotech Geoenviron Eng 141(8):4015032
Lu N, Likos WJ (2004) Unsaturated soil mechanics. Wiley, New York, p 556
Patil UD, Hoyos LR, Puppala AJ (2016) Characterization of compacted silty sand using a double-walled triaxial cell with fully automated relative-humidity control. Geotech Test J 39(5):742–756. https://doi.org/10.1520/GTJ20150156,ISSN0149-6115
Perrier E, Rieu M, Sposito G, Marsily GD (1996) Models of the water retention curve for soils with a fractal pore size distribution. Water Resour Res 32(10):3025–3031. https://doi.org/10.1029/96WR01779
Ran H, Chen Y, Liu H, Zhou C (2013) A water retention curve and unsaturated hydraulic conductivity model for deformable soils: consideration of the change in pore-size distribution. Géotechnique 63(16):1389–1405. https://doi.org/10.1680/geot.12.P.182
Shao X, Zhang H, Tan Y (2018) Collapse behavior and microstructural alteration of remolded loess under graded wetting tests. Eng Geol 233:11–22. https://doi.org/10.1016/j.enggeo.2017.11.025
Simms PH, Yanful EK (2002) Predicting soil–water characteristic curves of compacted plastic soils from measured pore-size distribution. Géotechnique 52(4):269–278. https://doi.org/10.1680/geot.52.4.269.41020
Sommer R, Stoeckle C (2010) Correspondence between the Campbell and van Genuchten soil–water-retention models. J Irrig Drain Eng 136(8):559–562. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000204
Sørland GH, Djurhuus K, Widerøe HC, Lien JR, Skauge A (2007) Absolute pore size distribution from NMR. Diffus Fundam 5(5):1–15
Tang CS, Shi B, Wang BJ (2008) Factors affecting analysis of soil microstructure using SEM. Chin J Geotech Eng 30(4):560–565 (in Chinese)
Van Genuchten MT (1980) A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci Soc Am J 44:892–898. https://doi.org/10.2136/sssaj1980.03615995004400050002x
Yao Y, Liu D (2012) Comparison of low-field NMR and mercury intrusion porosimetry in characterizing pore size distributions of coals. Fuel 95:152–158. https://doi.org/10.1016/j.fuel.2011.12.039
Zeng ZT, Lu HB, Zhao YL (2012) Wetting-drying effect of expansive soils and its influence on slope stability. Appl Mech Mater 170–173:889–893. https://doi.org/10.4028/www.scientific.net/AMM.170-173.889
Zhai Q, Rahardjo H (2012) Determination of soil–water characteristic curve variables. Comput Geotech 42:37–43. https://doi.org/10.1016/j.compgeo.2011.11.010
Zhang W, Sun Y, Chen W, Song Y, Zhang J (2019) Collapsibility, composition, and microfabric of the coastal zone loess around the Bohai Sea. Chin Eng Geol. https://doi.org/10.1016/j.enggeo.2019.05.019
Zhang Y, Zhang Z, Xue S, Wang R, Xiao M (2020) Stability analysis of a typical landslide mass in the Three Gorges Reservoir under varying reservoir water levels. Environ Earth Sci. https://doi.org/10.1007/s12665-019-8779-x
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This work was supported by Key Program of the National Natural Science Foundation of China (Grant No. 41931285), and the Key Research and Development Program of Shaanxi Province, China (Grant No. 2019ZDLSF05-07).
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Wang, H., Ni, W., Li, X. et al. Predicting the pore size distribution curve based on the evolution mechanism of soil–water characteristic curve. Environ Earth Sci 81, 23 (2022). https://doi.org/10.1007/s12665-021-10138-2
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DOI: https://doi.org/10.1007/s12665-021-10138-2