Minerals And Mining (Health, Safety And Technical Regulations, 2012) (L.I. 2182)
Regulation 264
A manager of a mine shall in relation to the mine, ensure that
(a) the embankments of tailings storage facilities in hazard class A or B are constructed by downstream method;
(b) upstream and centre line construction methods are only used for tailings storage facilities in hazard class C;
(c) the area for the construction of an embankment is cleared of vegetation, topsoil and weak ground;
(d) there is a proper foundation for the embankment;
(e) the material used for the construction of an embankment is resistant to liquefaction;
(f) the soil used for the construction of an embankment is suitable for the purpose and the soil is placed in layers of not more than thirty centimetre and compacted;
(g) the embankments have a drainage system to control the phreatic surface and seepage;
(h) water which has seeped outside the embankment from the tailings storage facility is collected in a sump and pumped back into the tailings storage facility;
(i) the structural requirements of embankments are calculated by a qualified engineer;
(j) minimum safety factors for static and dynamic load according to a specific calculation method are established;
(k) for a hazard class C facility, a static load safety factor of 1.5 is applied,
(l) for a hazard class B facility, a safety factor of 1.6 is applied;
(m) for a hazard class A facility, a safety factor of 1.7 is applied;
(n) the construction of the embankment is supervised by a qualified engineer who shall submit reports to the Inspectorate Division;
(o) an embankment provides for a freeboard of not less than one metre to ensure that the impoundment has enough capacity for water inflow during storm events; and
(p) an embankment is designed in a manner that enables the tailings storage facilities to store water inflow of the respective catchments area of a one-in-hundred-year twenty-four hour storm event that has a freeboard of not less than one metre, and to prevent overtopping of embankments and unacceptable phreatic surfaces in embankments.
Procedure to Follow
Not Avaiable
Responsible Institution
36 Second Cantonments Cl, Accra
- Email:
- Website: https://www.mincom.gov.gh/
- GPS: GA-110-0371
- Telephone: 030 277 1318
Relevant Forms to Download
Online System
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Fees/ charges
Not Avaiable
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