STUDY OF IMPACT LOADS ON RETAINING WALLS

A large scale physical model of a landslide was developed using dry quartz sand as a flow media. The dry sand was allowed to slide and impact on a wall at a series of slopes (30-40 degrees). Forces resulting from the impact of sand flow were monitored using load cells. High speed photographs facilitated analysis of the motion of the sliding mass. Two waves of sand were observed within each flow slide. An initial wave travelled down the slope and impacted the retaining wall; secondary waves then overtopped the initial sand mass until the angle of repose was reached. Dynamic impact forces exerted against the retaining wall were greater in magnitude than static forces. A linear relationship was observed between the magnitude of the impact force and the slope angle of the container. The location of the force resultant was lower for dynamic loading conditions than static loading. A comparison of test results with existing methods of analysis indicated that the quantitative models underestimated the dynamic forces measure in the model. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0858252082
• Supplemental Notes:
  • Papers presented during the Geomechanics-Interaction, Fourth Australia-New Zealand conference on Geomechanics, Perth, Western Australia, 14-18 May 1984, Volumes I and II.
• Corporate Authors:

  Institution of Engineers

  11 National Circuit
  Barton, A.C.T.,   Australia 
• Authors:
  • Loewenstein, R M
  • Clemence, S P
• Publication Date: 1984-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 39-43
• Monograph Title: GEOMECHANICS - INTERACTION. FOURTH AUSTRALIA - NEW ZEALAND CONFERENCE ON GEOMECHANICS, PERTH, WESTERN AUSTRALIA, 14-18 MAY 1984. PREPRINTS OF PAPERS. VOLUMES I AND II
• Serial:
  • Issue Number: 84/2

Subject/Index Terms

• TRT Terms: Conferences; Dynamic loads; Dynamics; Flow; Force; Impact loads; Landslides; Loads; Mathematical models; Mechanical shock; Retaining walls; Sand; Scale models; Slopes; Soil mechanics; Soils; Speed; Static loads; Statics; Structural models; Test procedures; Waves
• Old TRIS Terms: Impact loading; Static loading
• ITRD Terms: 8525: Conference; 5473: Dynamics; 5773: Flow (soil); 5421: Force; 4029: Landslide; 5567: Load; 6473: Mathematical model; 6205: Model (not math); 3359: Retaining wall; 4105: Sand; 5471: Shock; 2831: Slope (terrain); 5408: Speed; 5433: Statics; 6288: Test method; 6767: Wave
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 00392023
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0-85825-208-2
• Files: ITRD, TRIS, ATRI
• Created Date: Mar 29 1985 12:00AM