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Direct Shear Testing on Unsaturated Silty Soils to Investigate the...
'Effects of compaction moisture content on the shear 399 strength of unsaturated clay.' 'Effects of dry density and grain size distribution on soil-410 water characteristic curves of sandy soils.' Soil Found., 50(1), 161 -172.
File link: http://eprints.qut.edu.au...final draft to eprint.pdf
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Compaction of soil 0
Further tests to investigate degree and depth of compaction, reduction in permeability, and effects of vibration on the shear strength are recommended.' - Compaction of soil-cement on lateral side slopes with a self-propelled, pneumatic-tired roller attached by cables to a tractor.
File link: https://www.usbr.gov/tsc/techreferences/rec/R8905.pdf
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Subgrade soils (roadbed soils)
Subgrade soils consist of the in-situ, prepared, and compacted soils below the pavement structure that affect the structural design. Sandy Loam (SL): This soil contains 20% to 50% silt and clay combined, but less than 20% clay. The density of the soil mass affects the strength of the soil.
File link: http://mntac.org/materials/pvmtdesign/docs/2007manual/Chapter_3-2.pdf
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Documentation and Analysis of Field Case Histories
Section 5.3.6 synthesizes these test results and results for sands presented in Chapter 4 to investigate the effect of fines on seismic compression. Because relative compaction (RC) is used to characterize the density of soils containing significant fines, while relative density (DR) is used to...
File link: https://opensees.berkeley...rts/reports_2002/0209.pdf
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Soil compaction associated with cut-to-length and | Bulk density Unit 1
(2006) investigated the effect of soil moisture on soil compaction by running CTL harvesting machines at three different lev-els of soil moisture. Impact of intensive forest man-agement practices on the bulk density of lower Coastal Plain and Piedmont soils. South J. Appl.
File link: https://www.fs.fed.us/rm/pubs_other/rmrs_2009_han_s001.pdf
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Investigation of the Ability of Filters to Stop Erosion
Based on these data, the maximum dry density determined from a standard Proctor compaction test results in a relative density of 76% for the soil containing 0% fines and Three tests were conducted to investigate the effect of highly plastic fines on the ability of filters to collapse and fill cracks.
File link: https://www.usbr.gov/ssle/damsafety/TechDev/DSOTechDev/DSO-04-06.pdf
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Effects of explosions on embankment dams
Piping is dependent on the plasticity of the soil, the soil gradation as well as the degree of compaction of fill materials. The effect of soil density on crater dimensions was also investigated in the numerical study.
File link: https://curve.carleton.ca...sionsonembankmentdams.pdf
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A Summary of the Literature Related to Soils (I)
Soil bulk density is dependent upon the soil texture, with sandy soils having higher density than fine textured soils. Organic matter increases the soil's capacity to hold water and nutrients. It improves soil structure and reduces the effects of compaction.
File link: https://www.eqb.state.mn.us/sites/default/files/geis/LS_Soil.pdf
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Go To Link - A Summary of the Literature Related to Soils (I)
An investigation into the effect of soil compaction and tillage
In 2011, a long-term study was set up on the Large Marsh field at Harper Adams University UK to investigate the effect of three traffic systems (Random Traffic Farming Effects of traffic on soil aeration, bulk density and growth of spring barley. Effect of soil compaction on root development.
File link: https://cdn.harper-adams....-soil-compactio411490.pdf
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Evaluation of Soil Compaction
Many of the available soil compaction measuring devices, other than the Nuclear Density Gauge (NDG) Table 5 shows the compaction properties of the soils based on the AASHTO Standard T180 for The readings were repeated at various layers in order to investigate the effect of trench height.
File link: https://c.ymcdn.com/sites...Final_Report_GRI 8575.pdf
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