| The capital construction is an important tool of expanding production to improve people's material and cultural life level and strengthen national defense. Its specific role includes: first, provide national economic sectors with production capacity, affecting and changing the composition and property relation within and between economic departments, which makes the national productivity configuration more reasonable; With advanced production technical,the capital construction also provide the society with shelters, cultural facilities and municipal facilities, which provides with the material base for solving important social problems.As the founding of the industry, mining capital construction is an important part of capital construction. Mining capital construction is an important foundation to guarantee the sustainable development of the mining industry and rapidly increase the production capacity of various kinds of mineral. Therefore, the research on the capital construction investment of mining enterprises has an important significance. Thus, with Tongxin mine as the studied object, through the theory and empirical analysis on its capital construction investment, important conclusions are concluded in the desertion, providing valuable guidance for similar projects construction.Grey theory, value engineering, system engineering, multivariate statistics theory, fuzzy mathematics and Data Envelopment Analysis are used in the dissertation. The research on capital construction of coal mine are carried out in three aspects: the investment risk analysis, investment control analysis and investment efficiency analysis. The dissertation is divided into seven chapters. Chapter one is the introduction; the second chapter analyzes investment risk by means of multivariate statistics and grey theory; investment management control is analyzed in the third and forth chapter. In the third chapter, various investment control methods in different construction stages are proposed; in the forth chapter, the effect of investment control is evaluated comprehensively with fuzzy mathematics, analytic hierarchy process and dualistic relative comparative method. In the fifth and sixth chapter, investment efficiency is studied. The relevant theories of the investment efficiency and analysis method are discussed in detail in the fifth chapter; using Data Envelopment Analysis and principal component analysis, investment efficiency of capital construction in 13 mine of Datong Coal Mine Group are comparatively analyzed to gain a series of conclusion. Concrete works in the dissertation are mainly as follows:1.Introduction This part describes the research background and significance, research status, introduces the process of our country's coal industry investment system reform,shows the theoretical value and practical value of the research, reviews the research progress domestic and abroad. On the basis of those, the main content, target and framework of this dissertation is put forward.2. Evaluation of investment risk in coal mine capital construction based on triangular whitenization weight function grey clustering. In this part, common risk analysis methods are outlined with their shortcomings are pointed out. According to the characteristics of the coal mine construction project, triangular whitenization weight function grey clustering is selected to evaluate investment risk of Tongxin mine. Use factor analysis method to determine the weights of different indicators; survey data that obtained through the questionnaire passes the test of suitability. By Factor analysis method 31 indicators have been divided into six types of the main factors that have a technical or economic meaning: economic risk factor, occurrence and hazard factor, technical risk factor, implementation stage risk factors, policy risk factors, main equipment risk factors. The grey clustering coefficient leads us to believe that capital construction investment in Tongxin mine belongs to low-risk, while the group corporation should pay more attention to economic risk factor3. The whole-process investment control method in construction project. Capital construction investment control could be divided into investment control in decision-making stage, investment control in bidding stage, investment control in design stage, investment control in construction stage, investment control in the phase of final acceptance. Then corresponding measures and methods of investment control are put forward.4. Evaluation of investment control of coal mine capital construction based on fuzzy analytic hierarchy process. In this chapter, mine construction procedure and investment composition is briefly introduced. In accordance with the process of the implementation of coal mine construction project, the three-level index evaluation system of mine construction investment control with systematic hierarchy has been designed. Then Comprehensive Evaluation model based on AHP, dualistic relative comparative method and fuzzy mathematics. According to the principle of maximum membership degree, investment control ability is “best”. In all secondary indicators, the control in decision-making phase is most important; in all three grade indicators, the feasibility of mining technology and construction standards are most important.5. Evaluation theory and Mechanism of investment efficiency in capital construction. The relevant theory of coal construction project investment efficiency and the superiority of application DEA to dealing with investment efficiency are introduced. Compared to the real situation of Group, the various factors that influence investment efficiency, including the human resources management and board characteristics, etc is analyzed. Finally, the investment efficiency evaluation indicators system of capital construction is established.6. Empirical study on investment efficiency about coal mine capital construction. In this chapter, the necessity of researches on investment efficiency about mine capital construction is analyzed. DEA model of C2 R, BC2 and SE are introduced. Then, the three methods are used to analyze capital construction investment efficiency of 13 mines respectively. According to the projection theorem, the reasonable input and output values has been calculated. Through super efficiency model, 13 coal mines are divided into four categories. Using principal component analysis and Spss17.0, comprehensive efficiency scores of each coal mine are calculated and compared, verifying the accuracy of the results of the DEA analysis.7. Conclusions and prospects. In this chapter, research achievements of each chapter are summarized, and the innovation points in this paper are listed. Meanwhile, the shortages existing in the paper are pointed out showing the direction that need further study.There are many researches and results on investment management at home and abroad, while less study on coal mine construction investment management. Therefore, in the dissertation, based on previous study results made by other researchers, combining with the construction characteristics of coal industry in our country. Study on investment management of Tongxin mine is analyzed from three aspects: namely, investment risk, investment control and investment efficiency. Furthermore, according to analysis results, the corresponding management measures are put forward. Innovation in the dissertation embody in the following three aspects:(1) Factor analysis is used to extract several main factors with economic and technological significance that reflect most information of the original indicators. Grey clustering is introduced to set up triangular whitenization weight function grey clustering model. Combining with weighs of all indicators, the model has identified the grey type to which capital construction risk of Tongxin mine belong.(2) In accordance with the process of the implementation of coal mine construction project, the three-level index evaluation system of mine construction investment control with systematic hierarchy has been designed. Then comprehensive evaluation model based on AHP, dualistic relative comparative method and fuzzy mathematics is put forward to valuate investment control. As expert judgment information is used effectively to reduce objective error, the evaluation results become more reasonable and have a certain engineering application value.(3) SE-DEA model is applied to evaluate capital construction investment efficiency for the first time. The relative efficiency value and the relative sorting of decision making unit are obtained, solving the defect that the traditional DEA model can't distinguish effectiveness among DMUs when their efficiency value are l. For distinguishing coal mines which are integral effective, use super efficient model of DEA has been used to distinguish DMUs and classify 13 mines according to efficiency values. To demonstrate the conclusion reliability of DEA method, by means of Spss17.0 and principal component analysis(PCA), the comprehensive score of construction efficiency in all mines are calculated. The ranking obtained by PCA is basically in line with the result of the SE model. Through mutual authentication of the two methods, the accuracy of research results is guaranteed. |
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