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FeChribal A tvlsW Vlbr6tfOn TAV42-6pt-89641 <br />soils provido more resistance to adv€Itming piles wid'thereforg <br />generate higher %ibmdoxi <br />Figyre3 3. I xpectod Vibration- Levels Gone-ratpd <br />by a 60,000 J (60,000 ft lbf) Impact Pile Driv-or <br />19 1 f j <br />t( r <br />t <br />12 ? 4 I i j $ t ? d <br />It 1 3 7! <br />to (clayey soil) j - - <br />o <br />j I t1 _V V'(D'10)? f <br />s j'k 1.12 L wh to.-. ? <br />i l +.ndylstl# - V °-Vib. Leve.1 at distartcc? D I[ <br />° 1'soil) - V44 -t; Ref. V10.-LeveI at 7.b m <br />?- <br />- ? t - t?a =? 7.6_ m- = R.ra#. D <br />r - k Sent Paramotor <br />1 t - -? <br />r <br />1 <br />... Kd Aq A 141 101 41, to q( wl b to Y7 0. _ 0 iR . <br />y N F. N a fv t tl9 y rev -. r h. . h 9 t? _ N <br />bi + v r + s m CM1' 2 <br />distance from Pit* Driver, m <br />_ levels near the source that thane in. tandv sour, Vibratimis`sh Udy ". 4s, howetmr, tend <br />- to drop off more rrip dlyr with ttisttince than ihose its sandy soils, <br />- Frt°qucncy ranges of cb istrgcLion vibrations, (including pill IEIYTving) tend to he the <br />"me its for trAfric vibrii0or°is, to osOy in the ,10-30 i-lg m r&(-, centered. itrotuid 15 l4z, <br />f nev in a whiles lower them 10 lia, nild rt ly-higher than 301ja. <br />.. ,t { G L <br />._ IG