A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Instability of a Fly Ash Pond Containment Dike in Eastern India
This paper reports the failure of a 20-m-long section of a 10-m high downstream-constructed dike on the perimeter of an ash pond in eastern India. In the incident the debris washed out rapidly to distance of about 100 m before getting deposited in a low-lying area immediately downstream to the failed site. An investigation into the possible causes of failure indicated that the dike failure was initiated because of increased pore water pressure within the dike body resulting from accumulation of decant water immediately upstream of the affected section of the dike and blockage of a decant structure nearby and the chimney drain within the dike body. The instability was initially triggered because of pore water pressure rise within the dike body followed by severe loss of shear strength of liquefiable fly ash with which the dike was partly constructed finally leading to a flow failure.
Instability of a Fly Ash Pond Containment Dike in Eastern India
This paper reports the failure of a 20-m-long section of a 10-m high downstream-constructed dike on the perimeter of an ash pond in eastern India. In the incident the debris washed out rapidly to distance of about 100 m before getting deposited in a low-lying area immediately downstream to the failed site. An investigation into the possible causes of failure indicated that the dike failure was initiated because of increased pore water pressure within the dike body resulting from accumulation of decant water immediately upstream of the affected section of the dike and blockage of a decant structure nearby and the chimney drain within the dike body. The instability was initially triggered because of pore water pressure rise within the dike body followed by severe loss of shear strength of liquefiable fly ash with which the dike was partly constructed finally leading to a flow failure.
Instability of a Fly Ash Pond Containment Dike in Eastern India
Roy, Debasis (author) / Singh, Raghvendra (author)
Sixth Congress on Forensic Engineering ; 2012 ; San Francisco, California, United States
Forensic Engineering 2012 ; 280-285
2012-11-13
Conference paper
Electronic Resource
English