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Information × Registration Number 0219U005335, 0117U005533 , R & D reports Title Examination of materials and preparation of a conclusion on the expediency of the application of pre-wetting of coal, and harmonization of the act of technically achievable level of residual air dust (TАL) in underground mining of the mine "Toshkivska". popup.stage_title Head Vasiliev Leonid Michailovich, Registration Date 24-09-2019 Organization Institute of Geotechnical mechanics of NAS of Ukraine popup.description2 The object of study - dustiness of air in underground workings and the coal seam and the surrounding rocks; Purpose - to define an acceptable level of dust and to determine the effect of water on the stability of surrounding rocks; methods of research - analysis of mining conditions, the measurement results of dust and normative documents on levels of dust load and analysis of the geological characteristics and the results in the discharge of lava counterparts; the result of research - identification of a safe level of airborne dust pneumoconiosis and a conclusion about the negative impact on the stability of the injection water surrounding rocks and increase the danger of conducting clearing works.5481 Product Description popup.authors Васильєв Л. М. Усов О.О. popup.nrat_date 2020-04-02 Close