Learning and Discussion of Innovative ideas about Mining Waste Management and also Mining Related News and Activities

  • Mine Waste Management Training

    Mine Waste Management Short training sponsored by Government of Japan through JICA in corporation with the Government of PNG through CEPA, MRA and DMPGM.

  • Mount Sinivit Mine

    Acid mine drainage (AMD) continues to flow from the abondoned workings (mine). It is of two types and they are Mine Drainage from underground and open-pit and the seepage water from waste dump and tailings dam.

  • Mining Warden Hearing at Ok Isai Village, Frieda River, East Sepik Province, PNG

    Landowner grievances is always a challenge for the PNG Mining Industry. However, the Regulators of the Mining Inductry facilitate Mining Warden Hearings and Development Forums to address grievances related to mining.

  • Osarizawa Underground Mine Adit

    Osarizawa Underground Mine is an abandoned mine in Akita Prefecture, Japan. Event though the mine is closed, the mine site is kept for sightseeing purposes.

  • Hidden Valley Tailings Storage Facility (TSF)

    Mine Waste refers to the waste related to mining activities such as tailings and waste rock. Management refer to how the mine derived waste is managed by the operator and or the Regulatory Body.

Showing posts with label Slope Stability Analysis. Show all posts
Showing posts with label Slope Stability Analysis. Show all posts

Wednesday, 2 October 2019

Stability Analysis of Tailings Dam - Brief

Stability of Tailings Dam describes the tendency of a dam to resist failure. Failure encompasses both mass movements in which large volumes of rock/soil or dam embankment materials slip and smaller-scale displacements such as minor tension cracks on surface, rock falls etc. All types of rock-slope failures are important as they can have a significant impact on Tailings dam, mines, properties and lives either on the slope or at its base. Instability cause by mass movement of rocks along a plane occurs in four ways: plane failure, wedge failure, toppling failure and circular failure. 


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Sunday, 29 September 2019

Tailings Dam Construction in Papua New Guinea a Challenge

Tailings dam constructions in Papua New Guinea (PNG) are faced with natural factors such as  high altitude with high rainfall (2000-5000mm), active seismic zone and other geotechnical structural factors which pose threat to the stability of tailings dam and potential failure.  As such, the PNG government has allowed mining companies to discharge tailings into the river systems over the last 30 to 40 years which pollutes the riverine and ecology within the vicinity of the mine impacted communities downstream.  However, the PNG Government intend to discourage riverine tailings disposal and encourage tailings dam construction in PNG.

The current tailings dams in PNG include Hidden Valley Tailings Storage Facility(TSF) and K92 Mine Tailings Dam.

The Porgera Gold Mine discharges its tailings into the Strickland River in the Enga Province. The Ok Tedi Copper and Gold Mine at the Mt.Fubilan, Tabubil in the Western Province discharges its tailings into the Ok Tedi River System.

The Lihir Gold Mine in the Luise Caldera of New Ireland Province places its tailings onto the deep sea floor (DSTP).

The Ramu Nickel and Cobalt Mine at Kurumbukari in the Madang Province also practice the deep sea tailings placement (DSTP).

The Wafi Golpu project is an advanced project with the Special Mining Lease Application lodged with the Mineral Resources Authority and is under technical appraisal by government at its engaged  independent consultants. This project proposed for a DSTP.

The Frider River Project proposed for an Integrated Storage Facility which will contain waste rock and tailings at the same time. The dam will also but used as hydro-dam to generate electricity.

The government of Papua New Guinea will never or might not allow riverine tailings discharge for all future mines in the country. It would be either by practice of building of Tailings Storage Facilities of place them one deep seafloor.
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Osarizawa Mine in Akita Prefecture, Japan

Osarizawa Underground Mine Adit Osarizawa mine is an abandoned mine in Akita Prefecture, Japan . Event though the mine is closed, the ...

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