Comprehensive Evaluation Research Of High-speed Rail Station Construction Phase Security

Railway construction is an important constituent elements of the transportation infrastructure, along with China's rapid economic development, high-speed railway construction has become the main direction of the railway development as a high-speed rail construction Project of high-speed rail passenger station and plays a vital high-speed rail construction and development important role. Construction of high-speed rail passenger station construction projects with complex system, many factors, investment, short construction period, the characteristics of the job program diversity, this paper studies for safety evaluation and management of the construction phase of the high-speed rail passenger station. Combined with high-speed rail passenger station construction phase security risks exist for high-speed rail passenger station construction project a comprehensive evaluation of the safety objective and scientific, as well as to ensure that the railway construction, operational safety objectives have direct significance.From the construction characteristics and China Construction Industry standard high-speed rail passenger station engineering, combined with engineering practice cases, analyzes the high-speed rail passenger station construction all kinds of insecurity and its causes, to determine the effect of high-speed rail construction phase passenger stations Safety Comprehensive Assessment System Five main areas: Foundation template job protection, job protection scaffold safety nets, high and special construction work, construction of electricity operations, machinery and equipment operations. From the standpoint of five major, further identified 19 safety evaluation on these five areas, the composition of the high-speed rail passenger station construction safety evaluation index system. Then using a combination of qualitative and quantitative LEC-gray correlation method to determine the weights of each index weight factor, particularly with LEC method evaluation system to determine the right level indicators of heavy, gray correlation method to determine the right of secondary indicators index weight. Since the index weight accuracy is directly related to the reliability of safety evaluation results using LEC-gray correlation method can to a certain extent more objectively determine the weight of indicators,to avoid interference with the subjective element, it can better reflect the elements of the importance of the safety assessment of the impact, so that the evaluation more practical and objectivity. Finally, draw on relevant industry project security experience, combined with engineering example, the establishment of evaluation set high-speed rail construction safety passenger stations comprehensive evaluation of the security status of the construction phase of the high-speed rail passenger station described quantitatively; evaluation system and construction safety evaluation set together form a high-speed rail construction phase passenger station security evaluation model system elements using fuzzy evaluation theory established a secure comprehensive evaluation model.Thesis in high-speed rail station construction safety comprehensive evaluation system, with the aid of the gray theory and fuzzy mathematics theory analysis and research, the combination of their respective advantages, the establishment of a secondary fuzzy comprehensive evaluation model, with examples to establish evaluation matrix, evaluation index factor levels, according to the maximum membership degree principle to determine the evaluation results. Paper instance select "New Hami high-speed rail passenger station construction project" as a case study the object, determine its safety evaluation index value, determine its weight and maximum scribe degree, and its safety comprehensive assessment of its final safety evaluation result is "qualified", with the actual agreement is good, indicating that this evaluation method has certain practical significance for the safety evaluation of the construction phase of the high-speed rail passenger station.