«ALROSA» JSC (Mirny, Russia):

Pismennyy A. V., Chief Engineer
Chaadaev A. S., Vice-President, Director of «Yakutniproalmaz» Institute, Candidate of Economic Sciences

Zyryanov I. V., Deputy Director on Scientific Work of «Yakutniproalmaz» Institute», Doctor of Engineering Sciences
Kisilichin A. I., Chief Engineer of Mirny Ore-Dressing and Processing Enterprise

«Tekhnologii zakladki vyrabotannogo prostranstva» LLC (Moscow, Russia):

Montyanova A. N., Chief Executive Officer, Doctor of Engineering Sciences, e-mail: 22fill56@bk.ru

Large-scale development of underground method of ore extraction, in connection with reaching of open pits' limiting contours, is the distinguishing characteristic of modern status of mining operations on large diamond deposits of Far North. This article describes the peculiarities, improvement and practice of stowing operations on diamond-bearing pipes «Internatsionalnaya», «Aykhal» and «Mir». In particular, it is singled out, that for the relatively short period from the beginning of stowing operations, a new scientific-methodical approach to explanation of parameters of stowing and coal face operations was developed and realized on the Far North pits of «ALROSA» JSC. This approach consists in accounting of geothermal interference of artificial and rock massif by the development of extraction and stowing operations on deposits. Scientific-methodical provision of technologies of formation of stowing massifs is realized in the form of published technological regulations on production of stowing operations on «Aykhal», «Internatsionalnyy» and «Mir» pits. The following methods are included in the practice and are used on mines: methods of calculation of regulations of materials' consumption; methods of quality control of stowing massifs, including the non-fracture methods; method of calculation of junctions during the continuous breaking. The stowing compound compositions, where 30% of cement is replaced by homeland zeolite rocks, without loss of stowing durability, were developed, patented and implemented on «Mir» pit. There is proved the possibility of efficient and safe application of development systems with stowing in extreme conditions, as well as with negative temperatures of rock massif and mine air. The following factors are shown as priority directions of development of stowing operations on considered deposits:
-possibility of complete exclusion of consumption of imported cement due to manufacturing of clinkerless stowing compounds on the basis of homeland materials;
-optimization of stowing operations from the position of geomechanics;
-expansion of the area of efficient usage of zeolite rocks as means of decreasing of cement consumption;
-construction of water-proof stowing massif on the «Mir» pit as one of means of prevention of natural water inflows in the regions, where mining operations are carried out.

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2. Montyanova A. N. Formirovanie zakladochnykh massivov pri razrabotke almaznykh mestorozhdeniy v kriolitozone (Formation of stowing massifs during the development of diamond deposits in cryolithic zone). Moscow : Gornaya Kniga, 2005, 597 p.
3. Montyanova A. N. Gornyi Zhurnal – Mining Journal, 2002, No. 3, pp. 36–38.
4. Yu. A. Doynikov, A. N. Montyanova, A. I. Efimov et al. Zakladochnaya smes (Stowing compound). Patent RF, No. 2396434. 2010.
5. Kalmykov V. N., Beloborodov I. S., Grigorev V. V. et al. Primenenie izvestkovo-shlakovogo vyazhushchego – put k bestsementnoy zakladke (Application of lime-slag binder is the way to the cement-free stowing). Materialy Uralskoy gorno-promyshlennoy dekady (Materials of Ural mining-industrial decade). Ekaterinburg : Ural State Mining Academy, 2005, p. 22.
6. A. N. Montyanova, S. S. Kaprielov, A. V. Sheynfeld et al. K voprosu vozvedeniya na rudnike «Mir» zakladochnogo massiva s vodoupornymi svoystvami (To the question of construction of stowing massif with water-proof properties on the «Mir» pit). Problemy otrabotki almazonosnogo mestorozhdeniya trubki «Mir» pod tolshchey Metegero-Icherskogo vodonosnogo kompleksa (Problems of mining of diamond-bearing deposit of «Mir» pipe under the layer of Metegero-Ichersk water-bearing complex). Moscow : Institute of Comprehensive Exploitation of Mineral Resources, 2012, pp. 62–71.