In 1994 the Merriespruit gold tailings dam in South Africa failed, resulting in 17 deaths. The post-failure investigation provided no explanation as to why the catastrophic flow failure, which contradicted all previous experiences of failures of gold tailings dams in South Africa, occurred. The documented history of the dam describes insufficient freeboard …
The above mentioned trends in sand–silt mixtures have been observed from triaxial test results on various type of sand; e.g. Ottawa sand [46, 53], Merriespruit gold mining tailings [55], Foundry ...
The Merriespruit (South Africa) dam failure occurred following a heavy rainstorm and released some 6.0 × 10 5 m 3 of gold tailings and process material some …
DOI: 10.1139/CGJ-38-4-707 Corpus ID: 129586707; Static liquefaction as a possible explanation for the Merriespruit tailings dam failure @article{Fourie2001StaticLA, title={Static liquefaction as a possible explanation for the Merriespruit tailings dam failure}, author={Andy Fourie and Geoffrey Eustace Blight and George Papageorgiou}, …
25 August – Harmony is 60 years old – one of the foremost gold mining companies in the world with reserves of 48.1Moz of gold, employing more than 42 000 people at 12 …
The Merriespruit tailings dam disaster occurred on the night of 22 February 1994 when a tailings dam failed and flooded the suburb of Merriespruit, ia, Free …
The Merriespruit slimes dam failure occurred in February 1994 when 600 000 mlsupg3l/supg of liquid slime rushed through the Merriespruit village, causing the death of 17 people, widespread devastation and environmental damage. This paper sketches the early history of the dam and gives a brief description of dam-building techniques used on …
The static liquefaction of mine tailings has caused numerous recent failures (e.g., the 1985 Stava disaster in Italy (Chandler and Tosatti 1995); the 1994 Merriespruit failure in South Africa ...
The Merriespruit (South Africa) dam failure occurred following a heavy rainstorm and released some 6.0 × 10 5 m 3 of gold tailings and process material some 3 km downstream (Davies et al., 2000, Fourie et al., 2001).
Static liquefaction of mine tailings has been the interest of many studies as these materials are generally deposited in a loose condition and stored at high saturation ratios. Yet few researchers have investigated the behavior of mine tailings in stress paths involving extensional consolidation or shearing in extension.
On the night of 22 February 1994, the 31 m high northern wall of the number four tailings dam of the Harmony Gold mine collapsed. The tailings dam is situated 320 …
Located some 240 kilometers south-west of Johannesburg, near the towns of Welkom and ia in the Free State province, the Beatrix Gold Mine is the only one of Gold Fields' mines in South Africa which is located on the southern rim of the Witwatersrand Basin. Beatrix has 17.1 million ounces in Mineral Resources and 5.7 million ounces in Mineral …
Merriespruit Gold Mine - hang-on.co.za. Merriespruit Gold Mine. Chronology of major tailings dam failures - For a . Chronology of major tailings dam failures (from 1960) . Merriespruit, South Africa Harmony Gold Mines gold Dam wall breach following heavy rain 600,000 m3 .
Properties of mine tailings for static liquefaction assessment. Instability of a Gold Mine Tailings Subjected to Different Stress Paths. Procedure for assessing the liquefaction …
At approximately nine o'clock on the night of 22 February 1994, the 31 m high, number four tailings dam of the Harmony Gold mine collapsed. More than 2 5 million tonnes of …
[miningmx.com] — HARMONY Gold Mining Company will be closing its Merriespruit 1 shaft in ia after the failure of a productivity-linked deal clinched with unions in May. ... It gave a lifeline to the Merriespruit 1 shaft following a "ground-breaking job preservation and profitability agreement' with unions, provided the shaft did not ...
On 22 February 1994, the Merriespruit No 4 tailings dam failed after a torrential downpour with an estimated 600,000m³ of water. Tailings poured over a distance of 4km engulfing 80 Merriespruit homes and claiming …
Introduction. On the 22nd February 1994 the Merriespruit tailings dam failed by overtopping as a consequence of heavy rains causing a flowslide (static liquefaction) of part of the embankment (Davies 2002). Water …
(DOI: 10.1002/LDR.681) On the night of 22 February 1994, the 31 m high northern wall of the number four tailings dam of the Harmony Gold mine collapsed. The tailings dam is situated 320 m up-slope of Merriespruit, a suburb of ia in the Free State Goldfields of South Africa. More than 2·5 million tonnes of liquefied tailings ripped through the …
These assets include the mining and prospecting rights formerly held by Wits Gold. In June 2017, a mining right consolidating four areas of the property (Bloemhoek, De Bron Merriespruit, Hakkies and Robijn) was …
Failure of the Merriespruit gold tailings dam in 1994 in South Africa was unusual in that never before had a gold tailings dam in South Africa failed in such a catastrophic fashion. Conventional thinking was that gold tailings would always exhibit dilative characteristics upon loading, primarily because of the method of deposition which allows significant …
Closure of ia operations' Harmony 2, Merriespruit 1 and Merriespruit 3 shafts April 16, 2010. Johannesburg. Friday, 16 April 2010. Harmony Gold Mining Company Limited announced that following careful review of the performance of its Harmony 2, Merriespruit 1 and Merriespruit 3 shafts (all part of the ia operations), these assets have no …
The drained instability of two gold mine tailings under lateral stress relief is investigated in this study.
In Welkom, Infobel has listed 7,533 registered companies. These companies have an estimated turnover of R 278.379 billions and employ a number of employees estimated at 120,062.The company best placed in Welkom in our national ranking is in position #76 in terms of turnover.
In the early 1970s, Harmony merged with the then Anglovaal mines, Merriespruit and ia, to establish the Harmony Gold Mine with a lease area of 9 933.67ha. ... 25 August – Harmony is 60 years old – one of the foremost gold mining companies in the world with reserves of 48.1Moz of gold, employing more than 42 000 people at 12 operations ...
In Welkom, Infobel has listed 7,533 registered companies. These companies have an estimated turnover of R 278.379 billions and employ a number of employees estimated at 120,062.The company best placed in Welkom in our national ranking is in position #76 in terms of turnover.
Causes and consequences of the Merriespruit and other tailings-dam failures. H. J. Van Niekerk, Corresponding Author. H. J. Van Niekerk ... On the night of 22 February 1994, the 31 m high northern wall of the number four tailings dam of the Harmony Gold mine collapsed. The tailings dam is situated 320 m up-slope of Merriespruit, a …
The Leader Reef has been mined extensively at Merriespruit Gold Mine, although there is a regional south-westerly decrease in gold content to between 2.5 g/t and 5.0 g/t. This trend is reversed south of the Intermediate Reef subcrop, where reworking of the Intermediate Reef and the development of up to three carbon seams within the Leader Reef ...
In this study, we present trends for the response of mine tailings to monotonic loading considering (1) triaxial tests, (2) bender element tests, and (3) consolidation tests performed on mine tailings. ... Fourie, A. B., and Papageorgiou, G. (2001). Defining an appropriate steady state line for Merriespruit gold tailings. …
The Merriespruit disaster occurred on February 22, 1994 when the tailings dam at the Harmony Gold mine in ia, South Africa, collapsed. More than 2-5 …