FRICTION PILES DRIVEN IN SOFT CLAY. A FIELD STUDY

KOHESIONSPAALAR I LOES LERA. EN FAELTSTUDIE

THE REPORT DEALS WITH RESEARCH ON LARGE MODEL PILES DRIVEN INTO A SENSITIVE, VERY SOFT CLAY TO STUDY THE EFFECT OF PILE DRIVING ON THE SOIL AND THE EFFECTS OF PILE MATERIAL, PILE DIMENSION AND RATE OF DISPLACEMENT (DURATION OF A LOADING TEST) ON BOTH THE SKIN SHEAR STRESS/DISPLACEMENT CHARACTERISTICS OF THE PILES AND THE ULTIMATE SKIN RESISTANCE. IN ADDITION SOME PILES WERE INSTRUMENTED TO STUDY THE PHENOMENA OF LOAD TRANSFER AS WELL AS THE MAGNITUDE OF TOTAL AND EFFECTIVE RADIAL PRESSURES IN THE SOIL SURROUNDING A DRIVEN PILE. THE TESTS WERE MADE IN AREA LOCATED ABOUT 10 KM NORTH OF THE CITY OF GOTHENBURG. THE SOIL IS COMPOSED OF POSTGLACIAL AND GLACIAL SEDIMENTS TO A DEPTH OF ABOUT 40 M. THE TESTS DESCRIBED IN THE REPORT WERE MAINLY MADE IN THE DEPTH INTERVAL FROM 2 TO 10 M. BESIDES ROUTINE TESTING OF THE SOIL A SPECIAL STUDY WAS UNDERTAKEN DEALING WITH TIME-DEPENDENT EFFECTS IN CONNECTION WITH SHEAR STRENGTH MEASUREMENTS INSITU BY MEANS OF VANE TESTS.(A)

• Corporate Authors:

  National Swedish Institute for Building Research

  Box 27 163, 102 52
  Stockholm,   Sweden 
• Authors:
  • Torstensson, B A
• Publication Date: 1973

Language

• Swedish

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 185 p.

Subject/Index Terms

• TRT Terms: Clay; Dislocation (Geology); Dynamic resistance; Earth pressure; Friction; Friction piles; Glacial soils; Load transfer; Loads; Motion; Pile driving; Resistance (Mechanics); Shear strength; Shear stress; Skin resistance; Soft clays; Strength of materials; Support piles; Time; Vane shear tests
• Old TRIS Terms: Time effects
• ITRD Terms: 4177: Clay; 3641: Driving (pile); 5452: Friction; 4011: Glacial; 5567: Load; 5483: Movement; 3399: Pile; 3398: Pile driving resistance; 5531: Shear; 5544: Strength (mater)
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00081070
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: No. R 38:1973 R&D Rept.
• Files: ITRD, TRIS
• Created Date: Apr 8 1975 12:00AM