【作者】 刘瑢；

【导师】 李维滨；

【作者基本信息】 东南大学 ， 结构工程， 2006， 硕士

【摘要】 深基坑工程事故的预防和处理一直是岩土工程中的一个重要课题,也是深基坑工程实践中的热点问题。本文主要从风险管理的角度,对深基坑工程施工阶段预警系统的建立进行了理论和实践研究。文章首先在前人研究成果的基础上对深基坑工程的现状和特点进行了简明扼要的叙述,参考国内外深基坑工程研究文献,对当前基坑工程事故发生的原因进行了多方面的分析,提出了从信息化施工及风险管理的角度建立深基坑工程预警系统,对深基坑工程事故进行预防和处理的思想,分别对其功能设定、实施流程及系统实施中的风险管理进行了详细论述。本文对深基坑工程施工预警系统的建立、预警指标的确定、预测方法的选择等进行了理论和实践研究,提出了灰色模型组预测方法,提高了对深基坑工程监测参数进行预测的准确性。本文分别建立了信息管理、评价分析、决策对策三个子系统,分别对其功能设定、实施流程及系统实施中的风险管理进行了详细论述。实现深基坑工程施工预警系统的实施,预防和处理深基坑工程事故,确保深基坑工程的设计施工达到安全、合理、经济的目的。最后,本文将深基坑施工预警系统运用到两个实际工程中,通过该系统在工程实践中的应用,展现了该智能化预警系统的运作流程,体现了其实用性,提出了深基坑工程施工预警系统实施的施工建议,本课题具有广阔的工程应用前景。更多还原

【Abstract】 The prevention and treating of deep foundation ditch accident was a very important problem in geotechnical engineering, and it is a key problem in the deep foundation ditch engineering practice. This paper is written in the point of risk management. The theoretic and practical study of construction security early warning system of deep foundation ditch engineering is set up using this theory.On the base of former study, the development and characters of deep foundation ditch engineering was expound perspicuity firstly. Aiming at the status and existing questions of the deep foundation ditch engineering accident, the reasons of the deep foundation ditch engineering accidents was analyzed detailedly and generally reference to the articles of abroad and internal. The method of preventing and treating of deep foundation ditch accidents that set up a security early warning system of deep foundation ditch engineering using information-construction engineering practice and risk management was put forward, and, the setting up of the construction security early warning system of deep foundation ditch engineering and the choose of warning targets values etc was study in this paper. In the constructing of deep foundation ditch engineering, the engineering geology and hydrologic geology conditions and the surrounding environment must be consider firstly, and then set up these three information management, evaluation and forecast, decision-making and countermeasure subsystems. So the security early warning system was established. In the process control, the select of forecast control arithmetic and the warning target values are very important steps in the process control and security early warning system of deep foundation ditch engineering. Through the implement of the system in the deep foundation ditch engineering, the engineering optimize design targets of security, rationalize and economy were realize.At last, an intellectualized construction security early warning system of deep foundation ditch engineering was established, and through the practice of different deep foundation ditch projects using the construction security early warning system of deep foundation ditch engineering, it was proved to be applied.更多还原