A case study of determining liquefaction potential of a new landfill site in Virginia by using computer modelling

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:405690

Law, J H; Leung, C W; Mandeville, P A; Wu, A H

The United States Environmental Protection Agency (EPA) Subtitle D and Virginia Solid Waste Management (VSWM) regulations require that subsurface soil liquefaction potential be addressed during permitting of new and expanding landfills. There is an increasing trend towards use of computer modelling by many engineers and designers to assess the liquefaction potential of landfill sites. During the Part A permit application for a new site located in the central part of Virginia, a computer program {open_quotes}LIQUFAC{close_quotes} was used by the authors to evaluate liquefaction potential of the new site. The program was developed under the supervision of Dr. Arthur Wu, a geotechnical engineering consultant with the Naval Facilities Engineering Command (NAVFAC) of Washington, D.C. The program follows the procedures developed by Seed (1984), Castro (1987), and the National Research Council (NRC) 1985 publication {open_quotes}Liquefaction of Soils During Earthquake.{close_quotes} This paper presents the evaluation of the subsurface soil liquefaction potential for the new site, which is located in a seismic impact zone with a magnitude (M) equal to 5.5, and a maximum horizontal ground acceleration of 0.2g. Safety factors against liquefaction for each soil layer in a critical profile and the corresponding one-dimensional settlements due to earthquake loading are calculated. The results and findings of the analyses are tabulated in tables and illustrated in graphs. Conclusions and recommendations are also presented.

• OSTI ID: 405690
• Report Number(s): CONF-950177--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
99 GENERAL AND MISCELLANEOUS
EARTHQUAKES
GROUND SUBSIDENCE
L CODES
PERFORMANCE
PRESSURE DEPENDENCE
SANITARY LANDFILLS
SOILS
STABILITY