Alternative Title

Paper No. 2.11

Location

St. Louis, Missouri

Session Start Date

3-8-1998

Session End Date

3-15-1998

Abstract

High-density electrical prospecting was conducted on a heightened earthfill darn during the first filling of the reservoir to study the possibility of applying this prospecting method to examination of zoned structures inside an embankment darn and monitoring of seepage through the dam body. Visual Inspection and measurement with the measuring devices were also conducted to control the safety of the dam. As a result, it was found that zoned structures inside the dam such as a newly built embankment, an existing embankment, and drain are zones each having a different resistivity value. In addition, since the area where the resistivity inside the darn body changed with the impounding almost coincided with the area where pore water pressure changed, the seepage area is an area where the resistivity changed.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-8-1998

Document Version

Final Version

Rights

© 1998 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Share

 
COinS
 
Mar 8th, 12:00 AM Mar 15th, 12:00 AM

Survey of Seepage Through Heightened Earthfill Dam With High-density Electrical Prospecting Method

St. Louis, Missouri

High-density electrical prospecting was conducted on a heightened earthfill darn during the first filling of the reservoir to study the possibility of applying this prospecting method to examination of zoned structures inside an embankment darn and monitoring of seepage through the dam body. Visual Inspection and measurement with the measuring devices were also conducted to control the safety of the dam. As a result, it was found that zoned structures inside the dam such as a newly built embankment, an existing embankment, and drain are zones each having a different resistivity value. In addition, since the area where the resistivity inside the darn body changed with the impounding almost coincided with the area where pore water pressure changed, the seepage area is an area where the resistivity changed.