Seepage Filed Studies on the Effect of the Proposed Underground Garage

2013 ◽  
Vol 353-356 ◽  
pp. 34-39
Author(s):  
Qi Xia Liu ◽  
Xin Zou ◽  
Kai Qi Wang ◽  
Yang Zhao ◽  
Qing Zhao

This paper intends to solve the leakage of the surface waters on the proposed underground garage impact from a practical engineering, so we carry on the detailed analysis about the surrounding hydro geological conditions to provide scientific basis for underground garage waterproof design. On that basis, we establish the hydro geological conceptual model, using Visual MODFLOW4.1 software to simulate the seepage field in two kinds of working conditions, and get the result of the surface waters on the proposed garage impact. Thus in the underground garage of the soleplate waterproof design we adopt different block waterproof practices which may save a lot of fund, and have the important theoretical and practical significance to us.

Author(s):  
Iaroslav Liashok ◽  
◽  
Serhii Podkopaiev ◽  
Yuliia Simonova ◽  
Hennadii Boichenko ◽  
...  

Purpose. To assess the production risk of rock collapse in a deep coal mine to identify hazards in the workplaces of the excavation site, taking into account different methods of protection of workings. Methods. A comprehensive approach was used, which included: analysis and generalization of known research; expert evaluation; use of the basic provisions of probability theory and set algebra (Venn diagrams), the method of estimating the production risk of Fine-Kinney; processing, analysis and interpretation of the obtained results. Results. Problems and sources of industrial risk from rock collapses during maintenance of workings, risk-forming factors that contribute to the threat of dangerous events at the excavation site are analyzed. The decision-making model is considered, which is based on the description of situations when the production risk of the dangerous factor “landslides and collapses” in the maintenance of preparatory workings depends on the result of choosing an alternative method of protection of the retractable lane. For excavation sites under the same mining and geological conditions for all workplaces, the probability of receiving consequences from dangerous events due to uncertain conditions of their implementation has been established. It is fixed that the realization of this production risk is influenced by low reliability and inefficiency of the practiced methods of protection of excavations. Risk analysis is defined as the systematic use of available information to identify hazards in the maintenance of long workings. Novelty. A model for monitoring the production risk of rock collapses in excavations of deep coal mines is proposed, which allows assessing the dynamics of the threat at the stage of technical decisions related to the choice and justification of the method of protection of workings taking into account the interaction of risk factors. Practical significance. When formulating measures to reduce the risk of dangerous events at the excavation site, it is necessary to take into account that the production risk of rock collapse while maintaining the workings depends largely on the method of protection and effectiveness of technological measures.


Author(s):  
R. Lunderstädt ◽  
K. Fiedler

In the paper to be presented diagnostic procedures on the basis of a gas path analysis are applied on a two-shaft jet engine. Starting from the mathematical model of the engine a filter-algorithm is used which delivers from actual measurement data the state of the engine for different working conditions. The procedure is proven for some examples and discussed in regard of its practical significance.


Ekonomika APK ◽  
2020 ◽  
Vol 311 (9) ◽  
pp. 86-94
Author(s):  
Yurii Kernasiuk

The purpose of the article is to highlight the conceptual understanding of the cluster as an innovative organizational and economic form of production in the system of sustainable development on the example of the agricultural sector and substantiate the scientific basis for ensuring its implementation at the regional level. Research methods. When carrying out the research, a set of general scientific methods and techniques was used; monographic - in the study of domestic and foreign publications and the above-mentioned problems; a systematic approach based on the principles of systems analysis and synthesis - to substantiate the relationship between sustainable development, the efficiency of agricultural production and the cluster model; abstract-logical - for the theoretical generalization of research results and determination of measures to ensure the implementation of the cluster model of agricultural development; economic analysis - to study the efficiency of agricultural production. Research results. The essence of the cluster in modern economic theory in the context of the concept of sustainable development has been studied and analyzed. Globalization, climate change and the aggravation of socio-economic and environmental problems in many countries of the world necessitate the search for new models of economic development. It has been established that one of the most optimal organizational and economic forms of effective agricultural production in the system of sustainable development is clusters. On the example of the Kirovograd region, a scientifically grounded regional model of the development of agro-clusters in the agro-industrial complex. Scientific novelty. Based on the synthesis of scientific theories of cluster and sustainable development, further study of theoretical and methodological approaches to the definition of the essence of clusters as a promising organizational and economic form of effective agricultural production in the system of sustainable development was obtained. Practical significance. The research results will find practical use in substantiating regional strategies for the development of agro-industrial production. They can be used in educational and educational programs, when providing consulting services for the creation of projects of agricultural clusters and in further scientific research.


Author(s):  
Руслан Олександрович Костирко ◽  
Денис Вікторович Прозоров

Formulation of problem. Disclosing information about the social responsibility reguires the formation of social accounting model and the justification of specific tools that allow to reflect incomes and expenses that are due to socially responsible activity of enterprise. The aim of the research is scientific basis for preconditions, underlying assumptions, priority directions oforganization of social accounting. The object of the research is the process of accountingfor social responsibility. Methods, used in research: scientific generalization, logical and informative, induction, deduction, analysis. The hypothesis of the research is the assumption that social accounting should be oriented to disclosing information regarding socially responsible activity for different stakeholders and formation of integrated reporting. The statement of basic materials. The increasing social responsibility of enterprises specifies the necessity of the transformation of accounting in order to give transparent information about social and ecological activity for different groups of users, as well as the formation of integrated reporting. The base of development ofsocial accountingmethodology is concept of social responsibility, sustainable development, creation of value, object and classification of socially responsible expenses are specified. It is proved that the model of combined socially oriented accounting that includes the parallel reflection business operations in accounting that are due to social activity based on additional system of analytical accounts, the formation of indicators of financial and social reporting is rational. The classification of objects in the context of realization of concepts of value and socially responsible expenses is proposed in order to organize to rationally organize case -by -case social accounting. The originality and practical significance of the research are determined by the development of underlying assumptions of the development of social accounting methodology, oriented to ensuring social responsibility of the enterprise and scientific and methodical recommendations for the classification of socially responsible expenses. Conclusions and perspectives of further research. Taking into account the need sofdifferent stakeholders for disclosingin formation about effectiveness of the economic, social and ecological activity of entities, further researches will be focused on elucidation of the methodical basis of the organization of accounting for socially responsible expenses .


2020 ◽  
Vol 77 (2) ◽  
pp. 93-99
Author(s):  
Р. Л. Степанюк ◽  
С. І. Перлін

The authors of the article have studied the problems and perspectives of the formation of specific branch of forensic technology, which is devoted to DNA analysis in order to solve the tasks arising in criminal proceeding. Particular attention has been paid to the lack of a corresponding component in the domestic system of forensic technology, unlike the forensic science of foreign countries. The necessity of development of forensic DNA analysis as an independent branch of forensic technology has been argued. It is confirmed by the following main arguments: the methodology of this field of research is based on the theory of forensic identification; its objects are traces of human and other living organisms; DNA analysis technologies are developed using the achievements of different sciences and adapted to solve problems of crime detection and investigation; they are aimed to ensuring the activities of law enforcement agencies in counteracting crime; the scope of DNA analysis application in crime combating should not be limited to forensic activities; legislative regulation of collecting and using personal genetic data is essential; DNA analysis technologies in terms of practical significance and fundamental scientific basis exceed all other branches of forensic technology. The authors have offered to define forensic DNA analysis as the branch of forensic technology that studies individual genetic characteristics of living organisms contained in their DNA, in order to identify them and solve diagnostic tasks in the detection and investigation of criminal offenses. Its structure has been determined. The authors have provided perspective development directions of forensic DNA analysis: ensuring the appropriate state of legislative regulation of relations in the field of selection and use of personal genetic information; implementation of effective means and methods of detection and removal of biological traces and samples; improvement of methods of forensic DNA testing; formation of recommendations concerning the peculiarities of using DNA analysis results for proving; development of the latest technologies of forensic DNA analysis.


Author(s):  
Debasish Roy

The framework for this research is the unified theory of acceptance and use of technology. The increasing rural proliferation of mobile services has created a unique opportunity to deliver to the rural users information and services through innovative mobile applications. This chapter develops a conceptual model of factors that make a rural mobile application successful and that are the barriers to its implementation. The conceptual framework developed has been validated by a questionnaire based field survey using structural equation modeling (AMOS). The chapter explores how the conceptual model is impacted by the service characteristics. The contribution of this research to further the understanding of technology adoption models for rural mobile applications has been discussed. The findings of the study have been corroborated with similar research focusing on adoption of rural mobile applications. The practical significance as to how the research findings help in successful implementation of mobile applications has been presented.


2020 ◽  
Vol 12 (18) ◽  
pp. 7551
Author(s):  
Xiaoxia Zhang ◽  
Tonggang Zha ◽  
Jiangang Zhu ◽  
Xiaoping Guo ◽  
Yi Liu

The application of sewage sludge (SS) in forestry is considered a viable option. However, the long-term application of SS potentially leads to metal accumulation, posing an environmental risk. Understanding the loading capacity of SS for forestry application is therefore of great significance. We used data from published studies and statistical bulletins across 31 provincial capital cities (PCCs) in China to calculate the loading capacity (LC) of SS for forestry application for each PCC. The results are as follows: (1) the mean value of the priority control threshold was 33 t·ha−1·y−1 in 31 PCCs, while the variations ranged from 7 to 91 t·ha−1·y−1 among different PCCs. The priority control thresholds (Smins) of 1/2 PCCs were higher than 30 t·ha−1·y−1 (CJ-T 362-2011). The Smin values of Lanzhou, Tianjin, Hohhot, Shanghai, and Yinchuan were above 55 t·ha−1·y−1, but Smin values of Kunming and Changsha were below 10 t·ha−1·y−1. (2) Cd was the priority control metal in most of the PCCs (27/31), with the exception of Shanghai and Guangzhou (Cu), Beijing (Hg), and Tianjin (Zn). (3) The total loading capacity was 507 million t·y−1, which was 125 times higher than the total quantity of the dry SS (404 × 104 t) for the 31 PCCs. Our results have important practical significance for the use of urban sludge forest land in China and suggest that SS disposal policies need to be tailored to specific regions. We provide a scientific basis to guide the development of national and provincial forestry policies.


2019 ◽  
pp. 138-157
Author(s):  
Maria Giovanna Mancini ◽  
Luigi Sauro

In this work, we present a detailed analysis of the different acceptations and practices of art criticism. This investigation underpins a novel conceptual modelling that extends Cidoc CRM and has been specifically designed to semantically annotate art criticism-related data and documents in order to enhance in this context interoperability and more efficient data retrieval.


Author(s):  
Pramod A. Jamkhedkar ◽  
Gregory L. Heileman

Rights expression languages (RELs) form a central component of digital rights management (DRM) systems. The process of development of RELs transforms the rights requirements to a formal language ready to be used in DRM systems. Decisions regarding the design of the conceptual model, syntax, semantics, and other such properties of the language, affect not only each other, but also the integration of the language in DRM systems, and the design of DRM system as a whole. This chapter provides a detailed analysis of each step of this process and the tradeoffs involved that not only affect the properties of the REL, but also the DRM system using that REL.


2020 ◽  
Vol 24 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Pu Wang ◽  
Lishuai Jiang ◽  
Changqing Ma ◽  
Anying Yuan

The study of evolution laws of the mining-induced stress in floor strata affected by overhead mining is extremely important with respect to the stability and support of a floor roadway. Based on the geological conditions of the drainage roadway in the 10th district in a coalmine, a mechanical model of a working face for overhead mining over the roadway is established, and the laws influencing mining stress on the roadway in different layers are obtained. The evolution of mining stress in floor with different horizontal distances between the working face and the floor roadway that is defined as LD are examined by utilizing UDEC numerical simulation, and the stability of roadway is analyzed. The results of the numerical simulation are verified via on-site tests of the deformation of the surrounding rocks and bolts pull-out from the drainage roadway. The results indicate that the mining stress in floor is high, which decreases slowly within a depth of less than 40 m where the floor roadway is significantly affected. The mining stress in the floor increases gradually, and the effect of the mining on the roadway is particularly evident within 0 m ≤ LD ≤ 40 m. Although the floor roadway is in a stress-relaxed state, the worst stability of the surrounding rocks is observed during the range -20 m ≤ LD < 0 m, in which the negative value indicates that the working face has passed the roadway. The roadway is affected by the recovery of the abutment stress in the goaf when -60 m ≤ LD <20 m, and thus it is important to focus on the strengthening support. The results may provide a scientific basis for establishing a reasonable location and support of roadways under similar conditions.


Sign in / Sign up

Export Citation Format

Share Document