4027 4TH ST SE 2018-01-01 MF Import

TABLE OF CONTENTS Pa¢e 1.0 INTRODUCTION ...............................................................................................3 1.1 G�Tte�u ......................................................................................................3 1.7. PROJECI' DESCRIPTION .................................................................................3 l.3 AUTHORIZATION AND SCOPE OF WORK .......................................................3 ?.0 INVESTIGATIONS ............................................................................................3 2.1 FIELD EXPLORATION ....................................._.............................................3 2.2 LABORATORYTESTING ................................................................................4 23 LIrERnNRE REvtEw ...................................................................................4 3.0 SITE CONDITIONS ..................................................................................................4 3.1 GENERAL .....................................................................................................4 3.2 REGIONAL GEOI.OGIC CONDITIONS ..............................................................4 3.3 SUBSURFACE CONDRIONS ...........................................................................5 3.3.1 Soils ...............................................................................................5 3.3.2 Ground water .................................................................................6 4.0 CONCLUSIONS AND RECOMMENDATIONS ..............................................6 4.1 GENERAI ......................................................................................................6 4.2 SEISMIC DESIGN CRIfERIA ...........................................................................8 4.2.1 General ..........................................................................................8 4.2.2 Liquefaction ...................................................................................8 4.2.3 SiteResponse ................................................................................8 4.3 PILE FOUNDATIONS ......................................................................................9 4.3.1 Gencral ..........................................................................................9 4.3.2 Allowable Axial Capacities ...........................................................10 4.33 Response under Lataal Loading ...................................................10 43.4 Conslruction Considerations and Geotechnica( Monitoring.........10 4.4 SETrLEMEM ................................................................................................11 4.4.1 General ..........................................................................................11 4.4.2 Pile Settlement ...............................................................................12 4.4.3 Fill Settlement ...............................................................................12 4.4.4 Preloading ......................................................................................13 4.5 SffE EARTHWORK RECOMMENDA'fIONS ......................................................14 4.5.1 Subgrade Prepazation .....................................................................14 4.5.2 Roadway Fill Materials and Compaction ...................................... (4 4.53 Wet Weather Earthwork ................................................................15 4.6 STRUCTURAL PAVEhtEM DESIGN ................................................................16 �3.7 TE`1PORARY EXCAVATIONS AND SHORING ..................................................17 4.8 DEWATERRJG ...............................................................................................17 4.9 SITE DRAI;JAGE AND EROSION COIVSIDERA7'IONS ........................................17 i.0 UNCERTAINTY AND LIMITATIONS .............................................................18 2002I46 rzpon � fmal HWA GEOSCIENCES INC. �