A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Sinkholes on Earth Dams
Two centrifuge experiments investigating the effects of sinkhole formations on the stability of earth dams are discussed in this paper. A special container and a trap door assembly were designed to simulate formation of sinkholes. Calibration tests on level ground sand models were also conducted. The tests on embankment models provided insights into the mechanisms involved in the cavity formation inside embankments, as a result of sinkhole development. The two embankment models of compacted Bonnie silt were identical except the presence of water reservoir in the second model. However, the water reservoir in this test was contained in an impermeable latex membrane bag, so no seepage was developed. The sinkhole was about 3.6 m deep and 11 m in diameter at the base of a 35.9 m tall embankment in terms of prototype dimensions. In the test with no water reservoir, the surface of the embankment did not suffer major deformations; although a large cavity was formed above the sinkhole. In the test with water reservoir, the shear zone reached the dam surface which created a 3.6 m deep and 11 m diameter depression in the dam surface in terms of prototype dimensions.
Effects of Sinkholes on Earth Dams
Two centrifuge experiments investigating the effects of sinkhole formations on the stability of earth dams are discussed in this paper. A special container and a trap door assembly were designed to simulate formation of sinkholes. Calibration tests on level ground sand models were also conducted. The tests on embankment models provided insights into the mechanisms involved in the cavity formation inside embankments, as a result of sinkhole development. The two embankment models of compacted Bonnie silt were identical except the presence of water reservoir in the second model. However, the water reservoir in this test was contained in an impermeable latex membrane bag, so no seepage was developed. The sinkhole was about 3.6 m deep and 11 m in diameter at the base of a 35.9 m tall embankment in terms of prototype dimensions. In the test with no water reservoir, the surface of the embankment did not suffer major deformations; although a large cavity was formed above the sinkhole. In the test with water reservoir, the shear zone reached the dam surface which created a 3.6 m deep and 11 m diameter depression in the dam surface in terms of prototype dimensions.
Effects of Sinkholes on Earth Dams
Dewoolkar, Mandar M. (author) / Santichaianant, Kitidech (author) / Ko, Hon-Yim (author) / Goddery, Ton (author)
Geo-Denver 2000 ; 2000 ; Denver, Colorado, United States
Slope Stability 2000 ; 129-141
2000-07-24
Conference paper
Electronic Resource
English
Effects of Sinkholes on Earth Dams
| British Library Conference Proceedings | 2000
Spillways, Sinkholes, and Slope Failures: Quick Thinking Saves Two Dams
| British Library Conference Proceedings | 2022
Innovative Geophysical Visualization Technology of Sinkholes Potential Application for Dams?
| British Library Conference Proceedings | 2019
A review of sinkholes and related instrumentation at embarkment dams
| British Library Conference Proceedings | 2000