EMBANKMENTS ON COMPRESSIBLE SOIL

REMBLAIS SUR SOLS COMPRESSIBLES

This bulletin describes the work of a group of engineers from the Laboratoire des Ponts et Chaussees, who studied in the laboratory and in situ the behaviour of high embankments on compressible soil. This publication is in five parts. Part (1) contains three general articles outlining the problems encountered. The first, in the form of recommendations, deals with the method of conducting the study and building an embankment on compressible soil. The second article reviews current theories, hypotheses and possibilities of application. The third article describes general study methods, types of site investigation used, laboratory tests for compressible soil, methods of calculating stability and settlement. Part (2) deals with embankments on peat and soft clay. A summary is given of the studies conducted on different experimental high embankments built on these types of soil. In part (3) measurements are given which were taken on 4 embankments on peaty soil. Part (4) details the special equipment developed to obtain undisturbed samples and mesurements in embankment subgrades. Special mention is made of a fixed piston sampler and a vane, which both operate from the same lightweight frame on the surface. Other measuring apparatus (settlement meter, piezometer, inclinometer) are described. Part (5) is concerned with specific problems studied in the laboratory. Only the first results obtained are included. Consolidation under variable load was studied theoretically and experimentally. Details are given of a special odometer developed and of the beginning of a study of settlement on peat samples by means of a triaxial apparatus. Some observations are made on creep conditions in samples in undrained phase. /TRRL/

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Publication Date: 1973-5

Language

• French

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 361 p.

Subject/Index Terms

• TRT Terms: Clay; Compressibility; Consolidations; Embankments; Field tests; Geological surveying; Inclinometers; Laboratory tests; Methodology; Oedometers; Pavement subgrade; Peat; Piezometers; Pore water pressures; Soil mechanics; Soils
• Old TRIS Terms: Insitu methods; Settlement rate
• ITRD Terms: 6155: Apparatus (measuring); 4177: Clay; 5905: Compressibility; 5791: Consolidation (soil); 3628: Construction site; 5700: Core (boring); 2937: Drainage; 2801: Embankment; 5520: Failure; 6226: In situ; 6237: Laboratory (not an organization); 5567: Load; 6168: Oedometer; 4349: Peat; 6107: Piezometer; 5762: Pore water pressure; 2929: Sand drain; 5792: Settlement; 4156: Soil; 5930: Stability; 2950: Subgrade; 6255: Test; 9078: Theory; 5566: Triaxial; 6158: Vane; 9087: Vertical
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00125172
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Report/Paper Numbers: Bulletin
• Files: ITRD, TRIS
• Created Date: Nov 18 1975 12:00AM