Investigations of slope stability, Savannah River Plant, Aiken, South Carolina. Draft report

Technical Report · Tue Jan 01 00:00:00 EST 1985

OSTI ID:6044559

Our analysis of slope stability indicates acceptable factors of safety for trenches excavated at a slope inclination of one (horizontal) to one (vertical). Further, without the addition of externally applied loads, such as construction trafficking and the gantry crane, a slope inclination of 0.75 horizontal to 1.0 vertical was found to have an acceptable factor of safety of 1.5. Setback distances were calculated for a slope inclination of one to one, and it was found that the gantry crane loading could safely be applied at a setback distance of approximately 7.5 feet while maintaining a factor of safety of approximately 1.2. Similarly, setback distances required for dump trucks and scrapers would be expected to be approximately 6 feet and 10 feet, respectively, to maintain a factor of safety of 1.2. In order to allow flexibility with construction loadings, parametric studies were utilized for construction trafficking to enable setback distances to be selected consistent with actual equipment to be utilized during construction. The effect of removal of surficial soils was investigated, and it is concluded that a minimum of 4-1/2 feet should be removed from all areas prior to the excavation of slopes.

• Research Organization: Woodward-Clyde Consultants, Plymouth Meeting, PA (USA)
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6044559
• Report Number(s): DPST-85-263; ON: DE85010062
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

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UNDERGROUND DISPOSAL
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SLOPE STABILITY
EXCAVATION
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