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[suggestions for further research]
[literature cited]
[test data]
[vibrations which propagate through soils]
[vibrations which propagate thru soils]
[earthquakes]
[blasts]
[high-speed traffic]
[reciprocating and pulsating machines]
[reciprocating machines]
[pulsating machines]
[permeability]
[subject to vibrational effects]
[influenced by vibration]
[vibes]
[good vibrations]
[bad vibrations]
[designing foundations]
[designing bases]
[designing embankments]
[determining the safety of existing earth masses against failure]
[effect of shock and vibration on soils properties]
[slope failures]
[many structures settled more than three feet]
[rotated through an angle of eighty degrees]
[rotated through an angle of 80 degrees]
[catastrophic failures]
[settlement of soils adjacent to bridge abutments]
[under vibrating equipment]
[can also be beneficial]
[compaction of granular soils]
[vibratory compactors versus static compactors]
[achieving soil compaction]
[achieving compaction]
[patented processes]
[compaction with explosives]
[compaction via explosives]
[the effect of vibration on the mechanical properties of soil]
[safe engineering design]
[only a limited amount of knowledge is presently available]
[to isolate and study the basic dynamic properties of soil]
[the behavior of soil when subjected to vibration]
[reduction of shear strength during vibration]
[frequency and amplitude of vibration]
[no further mention will be made]
[sliding resistance]
[rolling resistance]
[frictional resistance]
[ensembles]
[interlocking of particles]
[internal friction]
[first known written remarks on the nature of friction]
[frictional resistance between two sliding bodies]
[proportional to the normal force]
[independent of the area of contact between the surfaces]
[coefficient of friction]
[Amontons second law]
[valid over a wide range of experimental conditions]
[the mechanism of friction between solids]
[the result of molecular bonding]
[real area of contact]
[plastic yielding]
[the contact between asperities]
[contact pressure]
[adhesion]
[junction growth]
[as the tangential force was gradually increased from zero]
[when slippage is imminent]
[maintaining proportionality]
[unlubricated surfaces moving past each other]
[optically smooth metals]
[irregular hills and valleys]
[atom diameters]
[metallic surfaces]
[non-metallic surfaces]
[microscopic interlocking]
[rough surfaces]
[x has been combined with y or neglected]
[resistance to sliding is the principal factor]
[dense sands]
[dilatancy]
[loose sands]
[separation into components]
[deformation]
[results in a volume change]
[a function of the applied stresses]
[dependence on type of test used]
[the stage of the experiment at which the value is determined]
[reduction of internal friction during vibration]
[angle of repose]
[estimating the angle of internal friction]
[loading platform]
[tangent versus acceleration ratio]
[of little value statistically]
[numerous graphs]
[EVR]
[typo: ‘effecting’ for ‘affecting’, p.83]
[oscillating normal stresses]
[radians per second]
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