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TeChn+t d-AdvIS ty, Obrollon T'Av-02-01-R 1 <br />Construction Vibration Level <br />With the excepiinn , 0f a faW` 4ttstisUCTS involvwg pavenient breaking, pile driving, all <br />Caltrans corc.struction vitmation ate-aauren7writs have been below the 5 mm/s. 10.2 <br />in/,set) 4orch tcrh:tral damage risk level for continuous vibrations. The highest <br />mcasured vibration level. was 73.1 mm/s (2.8€1 in/sect at 3 m (10 ft( .froin.'a pavc;ra on . <br />bTcakc.r. `T.hts instaoaee n?r?rked the onh• time that the single event sattx level of 34 M <br />Ma7ttt (2 ira / ee . wsis (m ceded during vibration monitoring by Caltrtans. <br />C}t)tvi, canatruction tlrtiyitie s and equipment, su.elz as. ll-£t and U-9 Caterpillars, <br />j c ut tbntovos-ae nd hard trucks have never e-veeded 2.5 atmi, (Q. 14 in/sec) or 6t1e 1" <br />_,ctf (tic: arclaitcc. Ural dawage risk level, at 3 m (10 A))- Depending on the itcti4ity a,ttd thc: <br />source. t,l]ilstmction vibrations vorv tnuch Q oie than trnffic vibrP.ttong, - <br />Figure 3 shows typical pile driving vibrations with.. d1sta- ace, for a 68,000 4 (50.000 ft <br />te <br />Cailr- river, f()r two cfifl'c?rent Oods Id(),'t y t od %alcty wittl Ot. r?lug <br />Ib j-tat t (vF ;?N.tt <br />IS