Investigation on the Liquefaction of Old Sand Deposits

Information

• NSF Award
• 9416169

Owner

• BECHTEL GROUP, INC

• Award Id

  9416169

• Award Effective Date

  10/1/1994 - 30 years ago

• Award Expiration Date

  3/31/1996 - 28 years ago

• Award Amount

  $ 65,045.00

• Award Instrument

  Standard Grant

9416169 Arango The objective of this project is to study the conditions that resulted in the liquefaction, or lack of liquefaction, of several identified old-age sand deposits in the area affected by the Northridge earthquake, and to relate the data gathered to that obtained from other old deposits. The motivation is to determine more accurately the liquefaction resistance of old sand deposits: Liquefaction resistance tends to increase with age, but this increase appears to be under-estimated by current design procedures, leading to overly conservative designs. The project consists of the following: field investigations (sampling and penetration resistance testing); laboratory tests (grain size, plasticity, microscopic classification, cyclic strength); and analysis of the data. ***

• Program Officer

  Clifford J. Astill

• Min Amd Letter Date

  9/28/1994 - 30 years ago

• Max Amd Letter Date

  10/4/1995 - 29 years ago

• ARRA Amount

• Name

  Bechtel Group Inc

• City

  San Francisco

• State

  CA

• Country

  United States

• Address

  Fifty Beale Street

• Postal Code

  951262146

• Phone Number

  4157682522

• First Name

  Ignacio

• Last Name

  Arango

• Start Date

  10/1/1994 12:00:00 AM

• Name

  Engineering-Civil

• Code

  54

• Name

  Disaster & Natural Hazard

• Code

  304000

• Name

  Earthquake

• Code

  304010