PREDICTING EARTHQUAKE-INDUCED TILT OF GRAVITY RETAINING WALLS

This paper presents very preliminary proposals for predicting permanent earthquake induced tilt in gravity retaining walls. The recommendations made are based on a review of two case studies. The first study involved centrifugal tests in which model gravity walls were constrained to rotate about their heel, and were restrained against rotation by springs. The second case study was a finite element study by Al-Houmoud, using the FLEX computer program. These studies produced two significant results: a) that the residual earth thrust tends to build up during a major earth shaking; and b) the peak dynamic overturning moment is determined primarily by the maximum inertia loading on the wall. These results suggest that prediction methods should focus on the following: a) residual thrust; b) inertial loading; and c) combined sliding and tilt. A worked example is provided to illustrate this procedure. For the covering abstract see IRRD 860485.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 750-8

Subject/Index Terms

Filing Info

  • Accession Number: 00643254
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-7277-1932-7
  • Files: ITRD
  • Created Date: Mar 10 1994 12:00AM