Data on the flow of water into the mine workings of the Karnasurt mine, which mines two concordant ore deposits of the Lovozero rare metal deposit, are considered. Statistical processing of the volumes of water collected by the mine over the past 4 years was carried out, with an assessment of the dynamics during the calendar year. Features associated with calendar climate changes have been identified. The main goal of the work was to assess the influence of water inflows on the strength characteristics of the rocks that make up the supporting pillars. Analysis and calculations of sedimentation within the mining allotment of the mine and the emerging water inflows into the mine workings were carried out, and they were compared with actual data on mine water. Samples of the most representative rocks of the deposit were selected and tested for compressive and tensile strength in dry and water-saturated states. The obtained data are presented in tabular form and in diagrams. Quantitative indicators of changes in the strength characteristics of rocks due to water saturation have been determined. A recommendation is given on the need to take into account the identified dependencies when calculating the stability of both supporting pillars and rock outcrops in the workings of the Karnasurt mine, which are subject to abundant water wetting.
Data on the flow of water into the mine workings of the Karnasurt mine, which mines two concordant ore deposits of the Lovozero rare metal deposit, are considered. Statistical processing of the volumes of water collected by the mine over the past 4 years was carried out, with an assessment of the dynamics during the calendar year. Features associated with calendar climate changes have been identified. The main goal of the work was to assess the influence of water inflows on the strength characteristics of the rocks that make up the supporting pillars. Analysis and calculations of sedimentation within the mining allotment of the mine and the emerging water inflows into the mine workings were carried out, and they were compared with actual data on mine water. Samples of the most representative rocks of the deposit were selected and tested for compressive and tensile strength in dry and water-saturated states. The obtained data are presented in tabular form and in diagrams. Quantitative indicators of changes in the strength characteristics of rocks due to water saturation have been determined. A recommendation is given on the need to take into account the identified dependencies when calculating the stability of both supporting pillars and rock outcrops in the workings of the Karnasurt mine, which are subject to abundant water wetting.
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