COMPRESSION, BUT DIFFERENT THEN: THE ANALOGIES BETWEEN THE KOPPEJAN AND DEN HAAN METHODS

SAMENDRUKKING, MAAR DAN ANDERS: DE OVEREENKOMSTEN TUSSEN DE METHODEN KOPPEJAN EN DEN HAAN

In Dutch soil mechanics practice the Koppejan method leads to unreliably big settlements in case of big loads when it is used for compression tests and settlement calculations for weak soils. A combination of this method and international standard theories, upon which the Dutch NEN 5118 standard for compression tests is based, contrary to the Koppejan method, leads to better results. To demonstrate this the following settlement theories are first discussed: a) Terzaghi-Buisman-Koppejan theory; b) De Rijk's theory; and c) Den Haan's theory. The latter has developed the abc model, in which the specific volume is proportional to the natural strain. By adding a d parameter the abcd method is developed, which uses natural strain and a stress dependent creep constant. In case of large deformations the abcd model is considered to be the best theoretical approach to Dutch soil mechanics practice. The operation of the model is demonstrated by means of a computer program according to the Koppejan method. An example calculation of a compression test on Holland peat is described. For the covering abstract of the conference see IRRD 867688.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9066281685
• Corporate Authors:

  CENTRUM VOOR REGELGEVING EN ONDERZOEK IN DE GROND-, WATER- EN WEGENBOUW EN DE VERKEERSTECHNIEK (CROW)

  GALVANISTRAAT 1
  EDE,   Netherlands  6716 AE
• Authors:
  • HEEMSTRA, J
  • DEUTEKOM, J
• Publication Date: 1994-3

Language

• Dutch

Media Info

• Features: References;
• Pagination: p. 1055-66
• Serial:
  • PUBL CROW (WEGBOUWKUNDIGE WERKDAGEN 1994. DEEL 3)
  • Issue Number: 82-III
  • Publisher: CENTRUM VOOR REGELGEVING EN ONDERZOEK IN DE GROND-, WATER- EN WEGENBOUW EN DE VERKEERSTECHNIEK (CROW)

Subject/Index Terms

• TRT Terms: Compressibility; Compression; Conferences; Deformation; Ground settlement; Loads; Mathematical models; Stresses; Weak rock
• Geographic Terms: Netherlands
• ITRD Terms: 5905: Compressibility; 5532: Compression; 8525: Conference; 5595: Deformation; 5567: Load; 6473: Mathematical model; 8078: Netherlands; 5792: Settlement; 5575: Stress (in material); 4145: Weak ground
• Subject Areas: Data and Information Technology; Geotechnology;

Filing Info

• Accession Number: 00674676
• Record Type: Publication
• Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
• ISBN: 90-6628-168-5
• Files: ITRD
• Created Date: Mar 8 1995 12:00AM