The analyses of daily surface deformations and destructions as a result of coal seam «Baikaimski» mining into the mine «Krasnoyarskaya» area was executed. The unusual character of subsidence, were surface destructions are observed when the mining depth more than 50 times exceed the seam thickness, is marked. The hypothesis of mechanism of surface destructions is offered.
In article problems of methodical maintenance and standards of an estimation of adverse effect of underground construction for conditions of St.-Petersburg are considered. The characteristic of the basic operating standard documents in sphere of maintenance of protection of the buildings developed in the Russian Federation is given. The reasons defining illegitimacy of application of some norms of these documents are stated. The urgency of creation of documents regulating an estimation of adverse effect of mining works on buildings, and also a technique of supervision for deformations is shown. Variants of maintenance of working on the specified documents for conditions of Saint-Petersburg are offered.
The Article presents the results of long-term investigations of the problem concerning the protection of shafts with pillars of reduced sizes under conditions of the Talnakh and Oktiabrsky deposits. The principal potentiality of partial mining of shaft-bottom pillars VS-3 and GS has been proved at the Oktiabrsky ore mine. Certain recommendations are given on optimization of parameters of shaft-bottom protective pillars.
The paper considers the existing standards in the field of rock movement and protection of engineer constructions from harmful influence of mining operations. It is emphasized the necessity in revision of some standards in compliance with the real mining production.
A cost-effective method of mining a thick sloping deposit using compacted rock filling instead of solidifying is proposed. Calculations by the finite element method showed the acceptability of the proposed technology for mining of protected objects on the earth's surface.