Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (» 



REPORT DOCUMENTATION PAGE 



TN-1714 



2 GOVT ACCESSION NO 



DN287297 



3 RECIPIENT'S CATALOG NUMBEF 



LABORATORY INVESTIGATION ON PILES IN 

 CALCAREOUS SEDIMENTS 



Oct 1980 -Sep 1982 



6 PERFORMING ORG. REPORT NUMBER 



CONTRACT OR GRANT NUMBERS) 



S. C. McCarel and R. M. Beard 



9. PERFORMING ORGANIZATION 



«E AND ADDRESS 



NAVAL CIVIL ENGINEERING LABORATORY 

 Port Hueneme, CA 93043 



PE62760N, 

 YF60.536.091.01.A106 



CONTROLLING OFFICE 



MO AODRESS 



Naval Facilities Engineering Command 

 Alexandria, VA 22332 



12 REPORT DATE 



November 1984 



3ER OF PAGES 



89 



M MONITORING AGENCY NAME 6 ADORESSr// dtlle 



ollini Oil, re) 



'5 SECURITY CLASS, (ol this report) 



Unclassified 



15.. DECLASSIFICATION DOWNGRADING 

 SCHEDULE 



6- DISTRIBUTION STATEMENT to 



Approved for public release; distribution unlimited 



DISTRIBUTION STATEMENT (ol I 



in Block 20. il c 



Calcareous, radiography, soils, sands, laboratory test, model pile, conceptual piles, frictional 

 characteristics, soil/pile interaction, crushability 



Laboratory tests were performed, using a model pile, to determine what effect pile driving 

 has on calcareous sand. Radiography was used to track the movement of lead shot in the sand 

 during pile driving. Driving energy was also recorded. A test was done to measure the amount 

 of grain crushing that occurs during pile driving. The result of this test shows that the side 

 friction of piles in calcareous sand is low and does not increase with increasing blows. The 

 reason for the low friction component is due to crushing the weak calcareous grains, which 



DD | jan 73 1473 EDITION OF I NOV 65 IS OBSOLETE 



(Continued) 

 Unclassified 



SECURITY CLASSIFICATION OF 



MBL/WHOI 



0301 00M0170 T 



