A LARGE SCALE EXPERIMENTAL STUDY OF SOIL REINFORCEMENT INTERACTION PART 2
Part 1 of this paper (see IRRD 837296) showed agreement between data from a series of large scale direct shear tests with the authors' proposed theory of soil reinforcement with bending stiffness. The present paper compares the theory with published data on instrumented reinforcement in direct shear tests and an instrumented nailed wall in Germany. The authors conclude that, for the design of steep slopes and excavations stabilised by conventional soil nailing, it is best to ignore the potential benefit of reinforcement bending stiffness. This radically simplifies the design calculation and only slightly alters its results. Such an approach is already followed in German standards of soil nailing, for example. It has also been shown that relatively large shear displacements are required to mobilise shear force in the reinforcement, and that failure will usually intervene as soon as the pullout capacity has been reached, but well before the full shear capacity of the reinforcement can be mobilised. The instrumented wall described in the paper provides a good example of this behaviour, agreeing with a comment by C. Plumelle et al that only close to failure and under large deformations is bending stiffness mobilised, giving an additional safety factor. (TRRL) (Author/TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00174653
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Corporate Authors:
Thomas Telford Limited
London, United Kingdom -
Authors:
- Pedley, M J
- JEWELL, R A
- MILLIGAN, GWE
- Publication Date: 1990-9
Language
- English
Media Info
- Features: References;
- Pagination: 4 p.
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Serial:
- GROUND ENGINEERING
- Volume: 23
- Issue Number: 7
- Publisher: EMAP CONSTRUCT LIMITED
- ISSN: 0017-4653
Subject/Index Terms
- TRT Terms: Deformation; Interfaces; Material reinforcement; Mechanically stabilized earth; Shear tests; Soils; Solidification
- Uncontrolled Terms: Soil deformation
- Old TRIS Terms: Soil solidification
- ITRD Terms: 5429: Interface; 5410: Moment (force); 3349: Reinforced earth; 3471: Reinforcement (in mater); 5531: Shear; 4156: Soil; 3357: Soil nailing
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00623723
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Jul 31 1992 12:00AM