Laserfiche WebLink
3,2 Impact Flammer <br />The impact hammer that would be used on this project is a PILECO D19 -42 with the following <br />specifications. <br />• Potential Energy 21,520 (29177 J)- 42,480(57595J) Ft-Lbs (No Loss for Compression or <br />Friction) <br />• Piston Weight 4,015 Lbs <br />• Blows per min 37 -52 <br />Commonly accepted Hammer Energy is 30% to 50% of Potential Energy <br />Again from (BSI) Table E.1: <br />201800874 <br />W <br />ures 5 kp [ Tri <br />Where: vres resultant PPV <br />k =1.5 From BSI Table E.2 (Medium Dense Granular Soils) <br />W= nominal hammer energy in joules <br />r='/L + x 2 wlth L pile toe depth & x = horizontal distance <br />Assuming 40% of the Potential Energy is converted to Nominal Energy we will have a <br />W= 11,6711 (Hammers Lowest Setting) <br />L=4.572m (15' Below Utility) <br />x= 1.524m <br />r= 4.819m <br />PPV =20.98 inm/s at the South abutment <br />W = 11,671 J (Hammers Lowest Setting) <br />L= Om <br />x =13.716m <br />r =13.716m <br />PPV =5.39 minis at the North abutment <br />6 <br />