In-situ testing methods for dynamic properties of MSW landfills

W. N. Houston, Sandra Houston, J. W. Liu, A. Elsayed, C. O. Sanders

Research output: Chapter in Book/Report/Conference proceedingConference contribution

36 Citations (Scopus)

Abstract

Cost-effective techniques have been developed for measuring P and S-wave velocities and in-situ shear strength for landfill waste materials. These techniques include both surface profiling and downhole measurements to capture the typical velocity inversion which accompanies a compacted soil cover. The measurement scheme is basically a simplified tomography survey which characterizes the material within a large cone around the borehole. A computer code is being developed to fit the data to a statistical model for each cone. Using a least-squares fit the code will automatically iterate to mean values and quantify the local variability (on a scale of 5 to 20 m). Variability across the landfill is assessed by repeating the measurements at several locations. Static shear strength of landfill materials is also being measured with a large-scale (1.22m × 1.22m) in-situ direct shear box. Because it is common practice to use a percentage of the static strength as the seismic strength in obtaining yield accelerations, these static strengths are useful for earthquake analyses. Attempts will be made to correlate these in-situ shear strengths with wave velocities and moduli at the same locations when more in-situ strength data are available.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
PublisherASCE
Pages73-82
Number of pages10
Edition54
StatePublished - 1995
EventProceedings of the Geotechnical Engineering Division of the ASCE in Conjunction with the ASCE Convention - San Diego, CA, USA
Duration: Oct 23 1995Oct 27 1995

Other

OtherProceedings of the Geotechnical Engineering Division of the ASCE in Conjunction with the ASCE Convention
CitySan Diego, CA, USA
Period10/23/9510/27/95

Fingerprint

dynamic property
testing method
landfills
Land fill
strength (mechanics)
Shear strength
landfill
shear strength
Cones
Testing
wave velocity
testing
Boreholes
compacted soils
Tomography
Earthquakes
tomography
soil cover
earthquakes
statistical models

ASJC Scopus subject areas

  • Soil Science
  • Building and Construction
  • Architecture

Cite this

Houston, W. N., Houston, S., Liu, J. W., Elsayed, A., & Sanders, C. O. (1995). In-situ testing methods for dynamic properties of MSW landfills. In Geotechnical Special Publication (54 ed., pp. 73-82). ASCE.

In-situ testing methods for dynamic properties of MSW landfills. / Houston, W. N.; Houston, Sandra; Liu, J. W.; Elsayed, A.; Sanders, C. O.

Geotechnical Special Publication. 54. ed. ASCE, 1995. p. 73-82.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Houston, WN, Houston, S, Liu, JW, Elsayed, A & Sanders, CO 1995, In-situ testing methods for dynamic properties of MSW landfills. in Geotechnical Special Publication. 54 edn, ASCE, pp. 73-82, Proceedings of the Geotechnical Engineering Division of the ASCE in Conjunction with the ASCE Convention, San Diego, CA, USA, 10/23/95.
Houston WN, Houston S, Liu JW, Elsayed A, Sanders CO. In-situ testing methods for dynamic properties of MSW landfills. In Geotechnical Special Publication. 54 ed. ASCE. 1995. p. 73-82
Houston, W. N. ; Houston, Sandra ; Liu, J. W. ; Elsayed, A. ; Sanders, C. O. / In-situ testing methods for dynamic properties of MSW landfills. Geotechnical Special Publication. 54. ed. ASCE, 1995. pp. 73-82
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