No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
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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,...
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 suburb of ...
The stress field and the seepage field in tailings reservoir change, leading to the instability of the dam. The following reasons explained for the resulting failure: (1) the seepage field directly induces instability of the tailings dam (seepage and internal erosion); (2) the instability of the tailings dam foundation (poor foundation conditions); (3) flooding that causes the tailings dam ...
The incident occurred on the morning of February 22, 1994, when a tailings dam at the Merriespruit gold mine in South Africa collapsed, releasing millions of cubic meters of water and slurry.
The number of gold tailings ponds using the US method was also the highest (n = 13), and ST (n = 9) and OT (n = 11) were the two most common causes of failures. Five (45.5%) gold tailings pond failures in the Philippines were attributed to OT. For the 23 Pb mine tailings pond failures, the main causes were SI (n = 6) and OT (n = 8). In summary ...
The Merriespruit gold mine tailings dam in South Africa experienced an overflow after two hours of heavy rain, resulting in failure and significant flow deformation of the dam in a short period of time. The Merriespruit gold tailings have strong expansibility. Periodical rise of the water table and overburdens consolidated the embankment dam ...
Merriespruit is a suburb of ia in South Africa, and on the 22nd of February 1994 it suffered a terrible flood because of failure to the Merriespruit tailings dam. ... After gold was removed from local rock, the materials left over were transported to the dam in order to settle during the day. ... The mining contractors arrived to assess ...
claims.* Three mining companies were formed, viz. ia Orange Free State Gold Mining Company Limited, Merriespruit (Orange Free State) Gold Mining Company Limited, and Harmony Gold Mining Com pany Limited. The three mining lease areas granted to these companies are indicated on Fig. 1. At a much later date, during 1955, a
Keywords: ice storage; deep level gold mine; energy management; refrigeration system The South African gold mining sector consumes 47% of the mining industry's electricity. On a deep level gold mine, 20% of the energy is consumed by the refrigeration system. The refrigeration system cools 67 ˚C rock temperatures underground.
The fatality was the second at one of the gold miner's operations in less than a week Harmony Gold halts operations at its Merriespruit 3 shaft after fatality - MINING
The Merriespruit slimes dam failure occurred in February 1994 when 600 000 m3 of liquid slime rushed through the Merriespruit village, causing the death of 17 people, …
In Welkom, Infobel has listed 26,470 registered companies. These companies have an estimated turnover of R 943.269 billions and employ a number of employees estimated at 423,218.The company best placed in Welkom in our national ranking is in position #21 in terms of turnover.
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 ...
The De Bron Merriespruit (DBM) project is located adjacent to the Beatrix mine in the Free State province of South Africa, both... Read More & Buy Now ... A detailed analysis of the Stibnite gold mine project. $2,250. Asset Report Caspiche gold mine project. 18 March 2024. A detailed analysis of the Caspiche gold mine project. $2,250.
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.
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. 1994 On 22 February 1994, following a period of heavy rain, a tailings dam wall just outside Merriespruit, a suburb of the town of ia in the Free State, collapsed.
PDF | In 1994 the Merriespruit gold tailings dam in South Africa failed, resulting in 17 deaths. ... En 1994, la digue de stériles de la mine d'or de Merriespruit en Afrique du Sud s'est ...
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 State, South …
South Deep Gold Mine South Africa Effective Date: 31 December 2021 Prepared by Gold Fields Limited Qualified Person Company Date of Signing Dr Julian Verbeek FAusIMM Gold Fields 30 June 2022 Richard Butcher FAusIMM (CP) Gold Fields …
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 ...
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 consolidation to …
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 …
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 gold slimes dams. This is …
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 remaining payable reserves …
Mots clés : liquéfaction statique, stériles de mines d'or, Merriespruit, rupture. [Traduit par la Rédaction] Fourie et al. 719 Introduction Failure of the 31 m high gold tailings dam adjacent to the village of Merriespruit, a suburb in the small town of Vir-ginia, South Africa, in February 1994 resulted in the deaths
Harmony is a global, sustainable gold mining and exploration company with a copper footprint in our Wafi-Golpu and Eva Copper projects. We are also a significant operator of gold tailings retreatment facilities. Explore more. South Africa.
The Merriespruit gold mine was operated by the Harmony Gold Mining Company, and the tailings dam was used to store waste material from the gold mining process. The dam was constructed using the upstream method, …
In this study, Philippine mine wastes and mining byproducts (i.e., ferronickel slag, nickel mine waste, gold-mine tailings, and copper-mine tailings) are characterized for radiation shielding ...
Plan of Merriespruit dam, South Africa, showing position of pool at time of failure, intended position of pool, breach in dyke, and path of tailings flood (1994).
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 suburb of ...
