BS 1377-7:1990 - Methods of test for soils for civil engineering purposes. Shear strength tests (total stress) – BSI British Standards

BS 1377-7:1990

Methods of test for soils for civil engineering purposes. Shear strength tests (total stress)

Status : Current, Superseded, Work in hand   Published : June 1990 Replaced By : BS EN ISO 17892-7:2018, BS EN ISO 17892-8:2018

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This British Standard, a part of the BS 1377 series, describes methods of test for determining shear strength parameters of soils in terms of total stresses, or (in the case of drained direct shear tests) in terms of effective stresses which are equal to total stresses. None of these procedures requires measurement of pore water pressure, which is covered in Part 8 of BS 1377. Shear strength is determined either by measuring the shearing force causing failure (direct shear tests), or by derivation from the measured compressive strength (unconfined or triaxial compression tests).

Direct shear tests  comprise:

a) the laboratory vane test procedure, for soft to firm cohesive soils

b) small shearbox procedures for determining the angle of shear resistance of cohesion less soils, and the drained peak and residual shear strength parameters of cohesive soils

c) large shearbox procedures for determining similar properties of gravelly soils, or on large block samples

d)  the small ring shear procedure for drained residual shear strength parameters of remoulded clays.

Compression tests comprise:

e) the unconfined compression test procedure, in the laboratory and in a portable apparatus for use on site;

f) the triaxial compression test procedure from which the undrained shear strength is derived;

g) the triaxial compression test procedure in several stages on one specimen, for deriving undrained shear strength.

The unconfined compression test procedure using portable apparatus, and the single-stage triaxial compression test, are similar in principle to those given in the 1975 Standard. All the other procedures are new additions.




Standard NumberBS 1377-7:1990
TitleMethods of test for soils for civil engineering purposes. Shear strength tests (total stress)
StatusCurrent, Superseded, Work in hand
Publication Date29 June 1990
Confirm Date01 May 2015
Normative References(Required to achieve compliance to this standard)BS 1377-7:1990, BS 1377:1975, BS 1377-1:1990, BS 1377-4:1990, BS 1377-2:1990
Informative References(Provided for Information)BS 1377:Part 1, BS 1377:Part 8, BS 1377:Part 4, BS 1377:Part 2
Replaced ByBS EN ISO 17892-7:2018, BS EN ISO 17892-8:2018
ReplacesBS 1377:1975
Amended ByAMD 8262
DescriptorsVane test, Soil strength tests, Test equipment, Soils, Specimen preparation, Construction, Compression testing, Soil-testing equipment, Mathematical calculations, Mechanical testing, Shear testing, Testing conditions, Triaxial test (soils), Soil testing, Reports
ICS93.020
Title in FrenchMéthodes d'essai des sols pour le génie civil. Essais de résistance au cisaillement (contrainte totale)
Title in GermanBodenuntersuchung fuer Tiefbauzwecke. Pruefung der Scherfestigkeit
CommitteeB/526/3
ISBN0 580 18264 9
PublisherBSI
FormatA4
DeliveryYes
Pages56
File Size1.403 MB
Price£254.00


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