复杂地质条件下城市隧道建设风险管理及灾害控制技术
发布时间：2018-11-14 21:05
【摘要】：由于国民经济的快速发展和人口的高度集中化,为缓解或从根本上解决人口增长对城市环境的压力,修建各种城市隧道在世界各国中呈现处急剧增长的趋势,但是城市隧道施工过程中的安全问题和环境污染也越来越突出。城市隧道处于特殊的位置,其结构设计和施工方法的考虑与一般山区或一般软土隧道有着一定的区别,并且复杂地质条件下城市隧道建设中爆破震动对周围建筑物的影响、突涌水的综合治理及整个施工过程管理控制等诸多问题尚未完善。 基于国内外城市隧道施工方面关于风险因素识别、评估及控制的经验与研究成果,重点关注城市隧道爆破震动和隧道突涌水灾害的风险管控,通过技术进步对风险进行规避。以城市隧道面临的主要安全技术风险为研究对象,进行了城市隧道施工风险的识别、评估及灾害控制的分析研究,重点研究了城市隧道爆破震动和突涌水的控制技术和风险管理,主要结论如下： (1)研究了复杂地质条件下轨道交通隧道施工遭遇的主要风险因素,提出了隧道施工风险辨识方法,建立了其指标体系并划分了风险等级,并提出了相应的风险接受准则； (2)研究了城市隧道水害风险评估及治理技术,为规避水害导致水资源枯竭、隧道安全事故等风险,建立了动水动态信息化注浆体系及无止浆墙深孔注浆治理关键技术,并综合各类管理评价方法对注浆超前帷幕进行了效果评价,研究成果在重庆轨道中梁山隧道进行了全面应用,取得了良好的效果； (3)基于城市隧道施工的主要开挖方法,形成了爆破震动风险识别体系,研发了大直径螺旋掏槽爆破技术、空气弹簧减震爆破技术及浅埋隧道的减震爆破技术,并在相关城市隧道进行了应用,成功规避了爆破震动带来的风险,对类似工程具有借鉴意义； (4)集成上述研究成果构建了以设计施工优化为先导、工程灾害防治措施为基础、安全管理系统与现场监测数据管理系统为平台、现场监测信息反馈为判据的复杂地质条件下隧道施工安全保障体系。
[Abstract]:Due to the rapid development of national economy and the high concentration of population, in order to alleviate or fundamentally solve the pressure of population growth on the urban environment, the construction of various urban tunnels in the world presents a trend of rapid growth. However, safety problems and environmental pollution in the construction of urban tunnels are becoming more and more prominent. Urban tunnel is in a special position, its structural design and construction methods are different from those in general mountain area or soft soil tunnel, and the influence of blasting vibration on the surrounding buildings in the construction of urban tunnel under complex geological conditions. Many problems such as comprehensive treatment of sudden water inflow and management control of the whole construction process have not been perfected. Based on the experience and research results of risk factors identification, evaluation and control in urban tunnel construction at home and abroad, this paper focuses on the risk control of blasting vibration and water inrush in urban tunnel, and avoids the risk through technological progress. Taking the main safety technical risk of urban tunnel as the research object, the paper analyzes and studies the risk identification, evaluation and disaster control of urban tunnel construction. The main conclusions are as follows: (1) the main risk factors of tunnel construction under complex geological conditions are studied. The paper puts forward the identification method of tunnel construction risk, establishes its index system and classifies the risk grade, and puts forward the corresponding risk acceptance criterion. (2) in order to avoid the risk of water resource depletion and tunnel safety accident caused by water disaster, the risk assessment and treatment technology of urban tunnel water hazard are studied. The dynamic information grouting system and the key technology of grouting treatment for deep hole grouting of non-stop grouting wall are established, and the effect of grouting advance curtain is evaluated by synthesizing all kinds of management and evaluation methods. The research results have been fully applied in Chongqing Railway Liangshan Tunnel, and good results have been obtained. (3) based on the main excavation methods of urban tunnel construction, the risk identification system of blasting vibration is formed, and the large diameter spiral cut blasting technology, air spring shock absorption blasting technology and shallow buried tunnel shock absorption blasting technology are developed. It has been applied in the relevant urban tunnels, which has successfully avoided the risk of blasting vibration, and has reference significance for similar projects. (4) integrating the above research results, the platform of safety management system and field monitoring data management system is constructed based on design and construction optimization, engineering disaster prevention and control measures. The safety guarantee system of tunnel construction under complex geological conditions based on feedback of field monitoring information.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455
本文编号：2332305
[Abstract]:Due to the rapid development of national economy and the high concentration of population, in order to alleviate or fundamentally solve the pressure of population growth on the urban environment, the construction of various urban tunnels in the world presents a trend of rapid growth. However, safety problems and environmental pollution in the construction of urban tunnels are becoming more and more prominent. Urban tunnel is in a special position, its structural design and construction methods are different from those in general mountain area or soft soil tunnel, and the influence of blasting vibration on the surrounding buildings in the construction of urban tunnel under complex geological conditions. Many problems such as comprehensive treatment of sudden water inflow and management control of the whole construction process have not been perfected. Based on the experience and research results of risk factors identification, evaluation and control in urban tunnel construction at home and abroad, this paper focuses on the risk control of blasting vibration and water inrush in urban tunnel, and avoids the risk through technological progress. Taking the main safety technical risk of urban tunnel as the research object, the paper analyzes and studies the risk identification, evaluation and disaster control of urban tunnel construction. The main conclusions are as follows: (1) the main risk factors of tunnel construction under complex geological conditions are studied. The paper puts forward the identification method of tunnel construction risk, establishes its index system and classifies the risk grade, and puts forward the corresponding risk acceptance criterion. (2) in order to avoid the risk of water resource depletion and tunnel safety accident caused by water disaster, the risk assessment and treatment technology of urban tunnel water hazard are studied. The dynamic information grouting system and the key technology of grouting treatment for deep hole grouting of non-stop grouting wall are established, and the effect of grouting advance curtain is evaluated by synthesizing all kinds of management and evaluation methods. The research results have been fully applied in Chongqing Railway Liangshan Tunnel, and good results have been obtained. (3) based on the main excavation methods of urban tunnel construction, the risk identification system of blasting vibration is formed, and the large diameter spiral cut blasting technology, air spring shock absorption blasting technology and shallow buried tunnel shock absorption blasting technology are developed. It has been applied in the relevant urban tunnels, which has successfully avoided the risk of blasting vibration, and has reference significance for similar projects. (4) integrating the above research results, the platform of safety management system and field monitoring data management system is constructed based on design and construction optimization, engineering disaster prevention and control measures. The safety guarantee system of tunnel construction under complex geological conditions based on feedback of field monitoring information.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455
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