Mechanical Properties of Soils Used by Mud Dauber Wasps under Varying Moisture Conditions
Publication: Geo-Congress 2023
ABSTRACT
A previous study showed mud dauber nests have high densities and high penetration resistance. The high density and penetration resistance of mud dauber nests were attributed to the vibratory compaction technique used by mud daubers (i.e., repetitive tapping produced by their legs and vibrating mandibles) and the well-graded grain size distributions of nest soils. However, the high density and strength of mud dauber nests are also attributed to soil drying under the atmospheric temperature and humidity level (i.e., drying-induced soil consolidation and hardening). This study investigated the mechanical properties of nest soils used by mud daubers with varying moisture conditions to assess the effect of drying on the mechanical properties of mud dauber nests. The suction stress characteristic curve (SSCC), soil water retention curve (SWRC), elastic modulus, and soil shrinkage curve (SSC) of the nest soils under drying were measured using the drying cake (DC) method. Furthermore, direct shear tests were performed under different moisture contents. The SSCCs showed the magnitude of suction stress increased with decrease of degree of saturation. Shear strengths of nest soil with 2% moisture content were significantly higher than saturated nest soil.
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REFERENCES
Akin, I. D., and Likos, W. J. (2017). “Brazilian Tensile Strength Testing of Compacted Clay.” Geotechnical Testing Journal 40 (4): 608–17.
Akin, I. D., and Likos, W. J. (2017). “Implications of Surface Hydration and Capillary Condensation for Strength and Stiffness of Compacted Clay.” Journal of Engineering Mechanics 143 (8): 1–11.
Akin, I. D., and Likos, W. J. (2020). “Suction Stress of Clay Over a Wide Range of Saturation.” Geotechnical and Geological Engineering 38 (1): 283–96.
ASTM. (2021). Direct Shear Test of Soils Under Consolidated Drained Conditions. ASTM D3080. West Conschohocken, PA: ASTM.
Bohart, R. M., and Menke, A. S. (1976). Sphecid Wasps of the World: A Generic Revision. Univ of California Press, Berkeley.
Dong, Y., and Lu, N. (2017). “Measurement of Suction-Stress Characteristic Curve under Drying and Wetting Conditions.” Geotechnical Testing Journal 40 (1): 107–21.
Dong, Y., Lu, N., and Fox, P. J. (2020). “Drying-Induced Consolidation in Soil.” Journal of Geotechnical and Geoenvironmental Engineering 146 (9): 04020092.
Dong, Y., Lu, N., and McCartney, J. S. (2016). “Unified Model for Small-Strain Shear Modulus of Variably Saturated Soil.” Journal of Geotechnical and Geoenvironmental Engineering 142 (9): 1–10.
Eaton, E. R. (2021). Wasps: the Astonishing Diversity of a Misunderstood Insect. Princeton University Press, New Jersey.
Evans, A. V. (2007). National Wildlife Federation Field Guide to Insects and Spiders & Related Species of North America. Sterling Publishing Company, New York.
Li, X., Wen, H., Muhunthan, B., and Wang, J. (2015). “Modeling and Prediction of the Effects of Moisture on the Unconfined Compressive and Tensile Strength of Soils.” Journal of Geotechnical and Geoenvironmental Engineering 141 (7): 04015028.
Lu, N. (2016). “Generalized Soil Water Retention Equation for Adsorption and Capillarity.” Journal of Geotechnical and Geoenvironmental Engineering 142 (10).
Lu, N., Godt, J. W., and Wu, D. T. (2010). “A Closed-Form Equation for Effective Stress in Unsaturated Soil.” Water Resources Research 46 (5): 1–14.
Lu, N., and Dong, Y. (2017). “Correlation between Soil-Shrinkage Curve and Water-Retention Characteristics.” Journal of Geotechnical and Geoenvironmental Engineering 143 (9): 1–11.
Lu, N., and Kaya, M. (2013). “A Drying Cake Method for Measuring Suction-Stress Characteristic Curve, Soil-Water-Retention Curve, and Hydraulic Conductivity Function.” Geotechnical Testing Journal 36 (1): 1–19.
Lu, N., and Kaya, M. (2014). “Power Law for Elastic Moduli of Unsaturated Soil.” Journal of Geotechnical and Geoenvironmental Engineering 140 (1): 46–56.
Lu, N., and Likos, W. J. (2004). Unsaturated Soil Mechanics. John Wiley and Sons, New York.
Lu, N., and Likos, W. J. (2006). “Suction Stress Characteristic Curve for Unsaturated Soil.” Journal of Geotechnical and Geoenvironmental Engineering 132 (2): 131–42.
Lu, N., Kim, T. H., Sture, S., and Likos, W. J. (2009). “Tensile Strength of Unsaturated Sand.” Journal of Engineering Mechanics 135 (12): 1410–19.
Park, J. S., Saleh, N. S., Lin, H., Alqrinawi, H., and Lord, N. P. (2022). “Investigating Physical and Mechanical Properties of Nest Soils Used by Mud Dauber Wasps from a Geotechnical Engineering Perspective.” Scientific Reports 12 (1): 1–12.
Stanier, S. A., Blaber, J., Take, W. A., and White, D. J. (2016). “Improved Image-Based Deformation Measurement for Geotechnical Applications.” Canadian Geotechnical Journal 53 (5): 727–39.
van Genuchten, M. T. (1980). “A Closed-Form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils.” Soil Science Society of America Journal 44 (5): 892–98.
White, D. J., Take, W. A., and Bolton, M. D. (2003). “Soil Deformation Measurement Using Particle Image Velocimetry (PIV) and Photogrammetry.” Géotechnique 33(7): 619–31.
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Published online: Mar 23, 2023
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