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THE USE OF HORIZONTAL DRAINS FOR CORRECTING A LANDSLIDE IN THE GREATER CINCINNATI, OHIO AREA

by HAMANT, CHRISTOPHER CARL

Abstract (Summary)
A landslide occurred in the Greater Cincinnati, Ohio Area as a result of the development of an apartment complex which required the cutting of a slope toe by 20 or more feet. The property and development configuration disallowed replacement of the slope toe and the depth and height of the slide mass prevented the construction of a reasonable retaining system. The landslide was stabilized by installing a drainage system consisting of 15 horizontal pipe drains. The discussion includes the development of a conceptual drain design and outlines the installation, which included considerable field adjustments. The drain installation resulted in the rapid lowering of the groundwater table more than 10 feet from its observed level during the drier months when the drains were installed. Individual drain flowrates were noted to approach and exceed 100,000 gallons per day, and continue to flow at rates as high as 20,000 gallons per day. Short-term and long-term monitoring programs are discussed as well as lessons learned for future landslide study and correction with horizontal drains.
Bibliographical Information:

Advisor:

School:University of Cincinnati

School Location:USA - Ohio

Source Type:Master's Thesis

Keywords:horizontial drains landslide stabilization ivy hills

ISBN:

Date of Publication:01/01/2002

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