EXPERIENCE FROM THE FIRST ON-SHORE APPLICATION OF THE MARCHETTI DILATOMETER IN GREECE

This paper presents the results of a soil investigation, carried out as part of a research project aiming to evaluate various on-site testing devices which could potentially be used in Greece. Tests were carried out especially with the marchetti flat dilatometer, at a site where a conventional investigation had also been performed, using sampling boreholes, standard penetration tests (spts), cone penetration tests (cpts) and laboratory testing. The marchetti dilatometer test (dmt) is simple to operate, cost-effective, and able to derive several soil parameters. Its results are used to estimate: (1) soil type; (2) unit weight; (3) relative density; (4) coefficient of earth pressure at rest; (5) overconsolidation ratio; (6) constrained modulus; (7) undrained shear strength for clays; (8) effective friction angle for sands (when combined with cpt results). To explore the applicability of the marchetti dilatometer for geotechnical site investigations in Greece, a series of tests was conducted at a test site in Athens with clayey soil and fairly well known geotechnical conditions. The paper describes: (1) test equipment and procedure; (2) data reduction; (3) the test site; and (4) test results and evaluation. Good agreement was usually found between the dmt predictions and the results of conventional tests. The practical advantages and limitations of the test are stated, and some areas for further research are indicated. (TRRL)

• Authors:
  • KALTEZIOTIS, N
  • ANAGNOSTOPOULOS, A
  • BOUCKOVALAS, G
  • Pachakis, M
  • Papadopoulos, V
  • Christoulas, S
• Publication Date: 1989

Media Info

• Pagination: p. 4-14
• Serial:
  • Bulletin of the Central Public Works Laboratory
  • Volume: 101

Subject/Index Terms

• TRT Terms: Clay; Coefficient of friction; Compressibility; Density; Earth pressure; Equipment; Evaluation; Sand; Saturated soils; Shear strength; Soil mechanics; Strength of materials; Swelling; Test procedures; Weight
• Uncontrolled Terms: Earth pressure at rest; Site investigation; Undrained soils
• Geographic Terms: Greece
• ITRD Terms: 6155: Apparatus (measuring); 4177: Clay; 5460: Coefficient of friction; 5905: Compressibility; 5908: Density; 5735: Earth pressure at rest; 9020: Evaluation (assessment); 8040: Greece; 4105: Sand; 5531: Shear; 5722: Site investigation; 5755: Soil mechanics; 5544: Strength (mater); 5203: Swelling (soil); 6288: Test method; 5782: Undrained soil; 5485: Weight
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00497797
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM