地鐵車站近建筑物深基坑施工安全風險因素及評估方法研究
[Abstract]:At present, with the rapid development of urbanization in our country, the shortage of urban space resources is becoming more and more obvious. The construction of subway can greatly relieve the pressure of ground transportation and reduce the demand of urban ground space. However, often the ground buildings in cities are already full of tall buildings, and the subway has only begun to plan and build the subway. In addition, the intersection of the lines also causes the stations to become deeper and deeper. This kind of lag in the development of underground space has brought a lot of difficulties to the later construction of the subway. It also gives safety to the construction of the project. In particular, the safety of subway station construction put forward a severe challenge. This paper makes a deep theoretical study on the risk factors and evaluation of the construction safety of the near building deep foundation pit in subway construction. The full text is divided into six parts. The first chapter is the introduction, expounding the research background and present situation of the safety risk factor cause theory, and through the research to the existing literature, then gives the research method, the second chapter summarizes the construction characteristic and the dangerous source of the deep foundation pit near the building; In the third chapter, through the research of hazard identification and accident cause mechanism, as well as the field investigation, the key influencing factors system of the construction safety of the near building deep foundation pit is designed synthetically. In the fourth chapter, the comparative judgment matrix is constructed by using the analytic hierarchy process (AHP), and the relative weights among the factors in the safety risk evaluation index system are calculated when the deep foundation pit is close to the existing building. In the fifth chapter, the basic problems of extension theory and matter-element are studied, and the evaluation index system is constructed, and based on the matter-element extension theory, the multi-factor comprehensive assessment of the construction safety risk of the deep foundation pit near the building is carried out. The sixth chapter is the conclusion and prospect, including the conclusion of this paper and the direction of further research.
【學(xué)位授予單位】:石家莊鐵道大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TU753
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