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RESEARCH ON THE EFFECTS OF THE BLASTING PRESSURE VALUES ON THE STABILITY OF CONCRETE LINING IN THE EXISTING TUNNEL DURING EXPANSION AUXILIARY TUNNEL IN HAI VAN PASS PROJECT OF VIET NAM

Tran Tuan Minh, Bui Xuan Nam, Tran Quang Hieu, Nguyen Quang Huy

Nowadays, transported tunnels are widely developed and built in Viet Nam. Transported tunnels are usually designed with twin tunnels (two parallel tunnels) and they are driven at the moment curing excavation to increasing the speed of excavation. However, in the fact because of technical - economic conditions one tunnel is excavated and following the future we are going to expand tunnels or build new tunnels near the old tunnels. Today, drilling and blasting method is used for many cases during excavation tunnels. Vibration is released in the processing of blasting that has influence on the old tunnels. This paper introduces assessment the values of vibration of blasting pressure on the stability of tunnels during expansion excavation new tunnels near the existing tunnels.

Number of views: 514

PROSPECTS FOR THE DEVELOPMENT OF SADON DEPOSITS

V.I. Golik, A.A. Sobolev, V.X. Dzaparov, G.Z. Kharebov

The purpose of the article is to substantiate the possibility of the Sadon deposits development modernization to ensure cost-effective production of non-ferrous metals and the restoration of the potential lost as a result of economic reform. The goal is achieved by solving a number of problems through experimental studies and expert opinions. Research methods include conventional methods of substantiation of innovative solutions, including: analysis of the development indicators of Sadon mines in the historical section, experiment on laboratory disintegrator and local metal-containing minerals and forecast of prospects of innovative technologies at the level of engineering solutions. The results of the study include the information necessary to make decisions on the reconstruction of the concept of development of Sadon mines in depression. The resource base of Sadon is time in the bowels of the Republic about 2% of reserves of lead and about 5% of the forecast resources of the P1 category of Russia. In the developed space of the mines there are 1 million tons of ore with a content exceeding the planned content of the present time. At the time, the fields with positive results mastered the technology with leaching of metals. It is established that the cause of the crisis of mines in North Ossetia is the mismatch of technology development principles of resource conservation, accompanied by increased losses and higher prices of products. The revival of the potential of the mines is possible with the conversion of development technologies with leaching, including the activation of metal extraction processes in the disintegrator. It is shown that environmental problems are being solved when mining waste is involved in the processing along with the replenishment of the mineral resource base. Announced the principle of combining the technologies of selective mining of different sorts of ores when rich ore issue to the surface and processed at the plant, and the rest is leached in blocks and stacks. The technology of utilization of primary processing tailings of the extracted raw materials with extraction of metals from them to the level of sanitary requirements by the impact on the mineral raw materials at the same time of mechanical and chemical energy in disintegrators is proposed. Conclusion. The goal of metal production modernization is achieved using technologies with leaching of metals including the impact of both mechanical and chemical energy on the mineral raw materials.

Number of views: 590

MATHEMATICAL MODEL AND ANALYSIS ALGORITHM OF THE TRANSPORT SYSTEM ENVIRONMENTAL SUSTAINABILITY IN MOUNTAIN REGION

Y. S. Petrov, M. K. Khadikov

Purpose. Development and creation of a mathematical model of environmental sustainability of the transport system in the mountain region which would allow to systematize and formalize the processes of the transport systems impact on the environment and the reverse impact which in turn would allow to comprehensively assess the environmental sustainability of the system "mountain transport – the environment", to develop specific measures to increase it. Methods. The analysis algorithm of the transport system ecological compatibility in the mountain region is based on the simultaneous analysis of the transport system functioning, the state of the environment and the assessment of their mutual influence on each other, expressing the level of ecological compatibility of the transport system in the mountain region. Assessment of techno-genic impact of the transport system on the environment is made by comparing the real values of the influence parameters with the normalized ones. Assessment of the possible impact of the environment on the transport system is also made by comparing the real parameters of influence with the permissible ones (for example, the probability of manifestation of an environmental risk, possible damage, etc.). If the actual characteristics in both cases fall within the limits of the permissible values, the ecological compatibility of the transport system is fulfilled. Results. The developed mathematical model and analysis algorithm of the transport system sustainability in the mountain region using a set of 2 matrices: the influence of anthropogenic factors of the transport system on the natural environment and the impact of environmental hazards in the mountainous region on the functioning and sustainable development of the transport system. The analysis algorithm of the transport system ecological compatibility in the mountain region based on the simultaneous analysis of functioning of transport system, a condition of environment and an assessment of their mutual influence on each other expressing level of ecological compatibility of transport system in the mountain region is given. The probabilistic model of ecological compatibility and the method of its analysis are offered. Summary. The matrix model and the proposed method of the transport system ecological compatibility analysis in the mountain region allows the most complete qualitative and quantitative assessment of both the techno-genic impact of the transport system on the environment and the dangerous impact of natural anomalies (environmental risks) on the transport system, maintaining the environmental compatibility of the transport system of the mountain region at the proper level, is a prerequisite for sustainable development of mountain areas. The given method of mathematical description of ecological interaction of transport system and environment can be used in the analysis of ecological compatibility of other techno-genic objects.

Number of views: 499

PROJECT FINANCING IN THE IMPLEMENTATION OF TECHNICAL SOLUTIONS FOR THE SUSTAINABLE DEVELOPMENT OF MINING ENTERPRISES

M. V. Rylnikova, I. A. Pytalev, I. A. Trushina

Sustainable development of the mining enterprise is provided by the use of technical solutions aimed at fundamental changes in the direction and volume of economic activity. The sustainable development of the mining and processing complex is not possible without the use of advanced solutions in the field of deep enrichment and optimization of the tail economy of processing plants. The criteria for the implementation of appropriate solutions and technologies in the end are economic indicators. As an alternative to the traditional approach to the financing of technical solutions in the field of projects in the field of subsoil use is project financing. In this case, there is an optimal distribution of risks between all participants involved in the project, and a large return is provided by effective maneuvering of the strengths and weaknesses of traditional forms of financing. The advantages and expediency of the method of project financing of technical solutions in the field of subsoil use, the implementation of which at the stage of development has ambiguity in terms of obtaining and distributing profits. The potential participants of project financing in the development of solid mineral deposits and reconstruction of quarries and the elimination of mining. The main and alternative technical solutions to ensure the sustainable development of mining enterprises are shown and evaluated on the example of the Bereznyakovskoye gold ore deposit and the Korkinskoye brown coal deposit located in the Chelyabinsk region. The area of application of traditional and project financing in the field of subsoil use is substantiated taking into account the distribution of risks and ensuring the requirements of the legislation. It is shown that the scope of project financing is much wider than traditional approaches to providing financial resources for technical solutions, but in modern conditions it is more limited by environmental factors. This confirms the need to apply project financing methods in the context of sustainable development of mining enterprises as an alternative to traditional approaches to the financing of the mining industry and private solutions in it.

Number of views: 532

SEARCH, RESEARCH AND DEVELOPMENT OF BIONANOROBOTICS TECHNOLOGIES FOR THE SUSTAINABLE DEVELOPMENT OF MOUNTAIN TERRITORIES IN THE NEW TECHNO-ECONOMIC PARADIGM

A. U. Zammoev, R. N. Abutalipov

Presentation of knowledge about bionanosystems (BNS) and transformation of this knowledge into technical data is an urgent problem of the development of bionanorobotics (BNR). For one of the most promising ways of controlling BNR systems as nanodevices - software control - one can use cognitive-target modeling, the possibility of which is due to the formation in BNS of intermediate states arising in the process of formation of complex nanostructures without external influence. Objective: ensuring the adequacy of models of BNS and of the representativeness of scientific visualization, data exchange, and the definition of criteria for processing semistructured data and parameters of the BNR system. Methods: infocognitive technologies, programming environments, micro-nanosystem-based electronics, bionanotechnologies, cognitive-target modeling. Results: The cognitive infocommunication system (CICS), which is a traditional infocommunication system with additional elements for providing cognitive functionality: monitoring and information gathering, intellectual activity, decision making, etc., can serve as an instrument for implementing these tasks. The CICS consists of the physical, information and cognitive part, where the physical part is energy supply and technical systems for transferring information from source to consumer, information - data, knowledge, methods, cognitive produces intellectual activity in the analysis of situations, evaluation and decision-making, and all these parts act on macro-, micro- and nano-levels. As a practical example of the integration of CICS with BNR, a schema is proposed of the concept of a medical online service that operates on the Internet can be an intellectual expert system that, according to the data of bionanosensors provides information on the current status and diagnosis, forecasts, with a high degree of confidence and speed, using the available knowledge bases and expert community development of the condition and recommendations on the beneficial effect on the health of the observed patient. The offered service is also applicable for remote monitoring problems solving of the hematological status and reproductive capacity of valuable breeds of cattle in the high mountains of the North Caucasus such as mountain yaks. Conclusions: Integration of the subsystem of sensors and actuators of the lower level of CICS with BNS technically allows interaction of CICS with the objects of the investigated BNS, and thus solve the problem of cognitive-target modeling of BNR. The programmatic control of the target BNS can be accomplished by transferring some of the functions of the upper level systems to the lower level while preserving the possibility of controlling these functions during the operation of the CICS. In BNR, bionanosensors and bionanoeffectors, as lowlevel devices of CICS, can develop similarly to macro- and micro-sized devices. Biocompatible nanostructures can perform the functions of bionanosensor devices by signaling the state of target biosystems depending on the state of specific factors of the observed biosystem. Information from the bionanosensors can then be translated in various ways from the nanoscale to micro- and macro-systems. The proposed form of online service has a high practical significance for the sustainable development of healthcare, agriculture and nature-conservation of mountain territories in the new techno-economic paradigm.

Number of views: 535
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ISSN 1998-4502 (Print)                                                            ISSN 2499-975Х (Online)