Investigation Into The Slimes Dams

  • Investigation into the slimes dams University of Pretoria

    Investigation into the slimes dams, mine dumps and landfills (residue slimes dam on the north of extension 11 and the pipeline from this slimes dam spread contaminated water Additionally, the MPRDA came into effect on 1 may 2004, and have the same flaw as NEMA [6].Investigation into the slimes dams, mine dumps and,Investigation into the slimes dams, mine dumps and landfills (residue deposits) as environmental constraints to low-cost housing projects in Gauteng, South Africa. Mining is a major activity in Gauteng and as a result the province has a large number of slime dams, mine dumps, and landfills in areas earmarked for low-cost housing projects.

  • Slimes disposalatSouthAfrican goldmines SAIMM

    Slimes-dam failures on shown inFigs. 1to3. asimilarly disastrous scalehave not These methods have evolved over occurred in South Africa, but tail-a period of three-quarters of a ings-dam failures of less severity century. Ascurrently operated they have, aselsewhere5, been common-are relatively cheap, absorb only a place, sothat slimes dams ofanySlimes-dam construction inthegoldmines oftheAnglo ,THE DESIGN OF SLIMES DAMS In the Anglo American Corpo-ration, the design of a dam is JOURNAL OFTHESOUTH AFRICAN INSTITUTE OFMININGANDMETALLURGY normally a collaborative effort be-tween the Civil Engineering and Metallurgical Departments, assist-ance being sought from the Mech-anical and Electrical Departments where necessary.

  • Investigation of soil engineering properties for safe

    four to five years of slime disposal, had reached to its maximum capacity. Soil Investigation Studies The existing top of the dam (about 1 krn) is 415.5 m while the tailings are already filled to about 412 m. To meet the future requirements, it is planned to increase the height of existing dam by 5 m from theDESIGN OFANEW DAM SAIMM,investigation into the stability of slimes dams with particular reference to the nature of the material of their construction and the nature of their foundation. Pretoria, restricted report, 1959. 2. DONALDSON, G. W. Practical obser-vations and the results ofresearch on the stability of slimes dams for the gold mining industry. J. S. Afr. Inst.

  • BHP Billiton reveals cause of Samarco disaster

    Aug 30, 2016· As a result of various developments, soft slimes encroached into unintended areas on the left abutment of the dam and the embankment alignment was set back from its originally-planned location. As a result of this setback, slimes existed beneath the embankment and were subjected to the loading its raising imposed.GDS CASE STUDY: FUNDÃO MINE TAILINGS DAM FAILURE,left Dam abutment being shifted to an upstream alignment, closer to (and, in fact, above) areas in which slimes had been deposited. It is also noted that three low-magnitude earthquakes (M W 1.8 to 2.6) occurred near the Dam approximately 90 minutes prior to Dam failure taking place. PANEL INVESTIGATION INTO THE DAM FAILURE

  • The genesis of a disaster CIM

    Nov 04, 2016· The proximity of the slimes further served to inhibit drainage in the sands. The dam’s growing height bore down on the slimes-rich zone. “As the softer slimes were loaded, they compressed,” wrote the investigators. “At the same time, they also deformed laterally, squeezing outin a process known as lateral extrusion.equipments used for mining slimes dams,Investigation into the slimes dams University of Pretoria. Mining is a major activity in Gauteng and as a result the province has a large number of slime dams, mine dumps, and landfills in areas earmarked for low-cost housing projects. The paper identifies and

  • Guidelines for Design of Dams

    guidelines for the proper design of a dam. In order for a dam to safely fulfill its intended function, the dam must also be constructed, operated and maintained properly. Supervision of construction or reconstruction of the dam by a licensed professional engineer is required to insure that the dam will be built according to the approved plans.Seepage Control for Tailings Dams,dam is raised, it can be constructed over a carefully pre­ pared foundation base rather than over previously deposited slimes, as is the case for the upstream method. Figure 2 ( 9} presents a comparison between a conventional water storage dam and a tailings dam

  • GUIDELINES FOR THE CONSTRUCTION OF EARTH-FILL

    Category 3. Dams that are at the higher end of the hazard category scale. These dams include ‘High B’, ‘High A’, Extreme hazard category dams and dams that are over 25 metres in height. These generally require the services of an expert dams team. The majority of farm dams fall into Category 1, but occasionally fall into Category 2.Best Practices for Tailings Dam Design KCB,Sep 07, 2017· Background. Recent major tailings dam failures have led to an industry-wide review of the design and management of tailings storage facilities. Before the 1960s, mine tailings were often disposed directly into ponds, lakes, rivers or natural topographic depressions, or stored in impoundments supported by earthen dams, without necessarily applying engineering principles (McLeod et al. 2015).

  • The Samarco disaster was waiting to happen

    Aug 30, 2016· The most disconcerting aspect of the findings of the investigation into the Samarco tailings dam disaster is that, almost from the time it was constructed, the dam was a calamity in waiting.Mount Polley mine Wikipedia,The Mount Polley mine is a Canadian gold and copper mine located in British Columbia near the towns of Williams Lake, and Likely.It consists of two open-pit sites with an underground mining component and is owned and operated by the Mount Polley Mining Corporation, a wholly owned subsidiary of Imperial Metals Corporation. In 2013, the mine produced an output of 38,501,165 pounds (17,463,835 kg

  • Geologica Projects Geologica

    Investigation into causes of decant dam failures in DRC for George, Orr & Associates. Eskom Kusile Power Station Investigation of compaction and settlement of fill using DPSH probing, percussion drilling and Marchetti dilatometer (DMT) to evaluate density, K0 and constrained modulus in situ.Technical note: Fundão Mine tailings dam failure Ground,Feb 12, 2020· 3.0 Panel investigation into the dam failure. Eyewitness accounts and physical evidence confirmed that the dam collapsed in a liquefaction flowslide, initiating at the left abutment. This starting point led the panel to focus on why a liquefaction flowslide occurred, why it initiated at the left abutment and why it failed on the 5 November 2015.

  • DESIGN OFANEW DAM SAIMM

    investigation into the stability of slimes dams with particular reference to the nature of the material of their construction and the nature of their foundation. Pretoria, restricted report, 1959. 2. DONALDSON, G. W. Practical obser-vations and the results ofresearch on the stability of slimes dams for the gold mining industry. J. S. Afr. Inst.Assessment of Some Hydraulic Properties of Slime Slurries,May 08, 2008· The slimes were pumped from two ponds and stored in four sealed 20-l plastic containers allocated to each pond. At the time of sampling, the depth of the ponds ranged from 6 to 15 m. Mineralogical, physical and chemical properties of the slimes used in the present investigation are summarized in Table 1. The slimes have very low pH due to their

  • Mud rushes and methods of combating them SAIMM

    slimes dam failure. Fleischer and Sandy (1976) present the results of an investigation into an in-rush of tailings into the Mufulira Mine on the Zambian copperbelt in 1970. In this mud rush 89 people were killed when workings were engulfed by 450 000 m3 of slimes. The report also deals briefly with the factors that led up to the mud rush.Brainless slime named 'the Blob' headed to space for studies,Aug 03, 2021· August 3, 2021 4:27pm. A slime mold known as the Blob, a single-celled organism, will be launched to the International Space Station as part of an investigation

  • Seepage control in tailings dams ResearchGate

    Taking into consideration good comparability of the results, the Dupuit equations were used for prediction of seepage discharge through the tailings dams in case of their raising, according toThree Years Later the Lao Dam Disaster is still a warning,Jul 26, 2021· An investigation committee initiated by the Indian Supreme Court found that the construction of hydropower dams increased the severity of the incident. Despite a court order that no new hydropower dams be constructed in the regions of Uttarakhand, 37 hydropower projects are under operation as of 2018, with two more awaiting clearance.

  • Independent investigation will look into what caused

    Aug 11, 2020· The investigation team, made up of experts in emergency action planning, reservoir operations, and hydraulic structures, among other areas, will prepare one report to cover all four damsClues to Oroville Dam spillway failure 'were all there in,Sep 06, 2017· This article identifies the leader of the independent investigation into the failure of the Oroville Dam spillway as John French. The team leader’s name is John France. Subscribers Are Reading

  • Head of NYC's BLM chapter calls for probe into co-founder

    Apr 11, 2021· The head of New York City's Black Lives Matter chapter is calling for an independent investigation into the organization's finances after it was revealed a co-founder snapped up a Body of diver found after apparent drowning in Michigan,Jul 08, 2021· Jul 08, 2021 at 11:48 AM. The body of a diver who apparently drowned while inspecting a Michigan dam has been found. Rescue efforts, involving more than 80

  • The genesis of a disaster CIM

    Nov 04, 2016· The proximity of the slimes further served to inhibit drainage in the sands. The dam’s growing height bore down on the slimes-rich zone. “As the softer slimes were loaded, they compressed,” wrote the investigators. “At the same time, they also deformed laterally, squeezing outin a process known as lateral extrusion.Court drops two charges facing Rotich in Kimwarer dam,Jul 16, 2021· The case stems from an investigation into the misuse of funds in the two dam projects overseen by Italian construction company CMC Di Ravenna.

  • Egle Edenville Dam Failure FAQ State of Michigan

    has been tasked with an investigation into the causes of the Edenville failure, Gov. Gretchen Whitmer has also ordered EGLE to review dam safety policies, procedures, protocols and funding and recommend ways to enhance dam safety in Michigan. Michigan has approximately 2,523 dams.The impact of gold mining on the Witwatersrand on the,Jun 15, 2012· The slime is then pumped to tailings dams, from which a variety of chemicals, including the remaining cyanide, may leach into the soil, rivers and groundwater (Krige, 2006). Although great care is taken to line the storage ponds and ore piles with thick plastic sheets to prevent seepage, they often tear, causing cyanide to escape into the