【作者】 陈浩；

【导师】 张光科；

【作者基本信息】 四川大学 ， 水利水电工程， 2006， 硕士

【摘要】 岩土工程安全监测是运用监测仪器和设备对工程及周围有关的重要参数进行系统的定期量测,并对测得的资料计算分析作出判断的全过程。由于岩土工程自身的特殊性和复杂性,直接采用安全监测原始数据对建筑物的安全稳定状态进行评估与反馈是困难的。本文全面回顾了监测资料反馈分析方法在岩土工程领域研究的进展,并采用其中一些方法对D河某水电站厂房深基坑周边防渗墙监测资料进行了反馈分析,针对本电站深基坑的特点,研究了弹塑性有限元理论及建模思路,并分别采用传统的毕肖普法和有限元强度折减法对电站厂房的深基坑边坡进行稳定性比较分析。本文研究工作主要集中在以下几个方面:一、较全面的研究监测资料反馈分析与监控预测的方法,以D河某水电站基坑开挖工程为背景,着重分析了厂房基坑监测的设计与测点布置情况,阐明了监控布置的合理性。二、结合本工程实际情况,详细介绍了弹塑性理论的基本思想和分析方法。建立了基坑开挖过程模拟分析的弹塑性有限元模型,并采用Drucker—Prager屈服准则,运用ANSYS软件作为计算分析工具,对厂房深基坑边坡开挖过程进行模拟计算。三、通过对表面位移测点、测斜仪等主要监测设施得到的监测数据进行整更多还原

【Abstract】 Safety Monitoring of civil engineering is a process,which includes exercising monitoring machines and operations to measure the project’s important parameters or its all around termly,and then analysis the datum in order to make a judgement. Due to the projects’particularity and complexity,it’s difficult to feedback and evaluate the construction’s Safety coefficients. Firstly,author has fully reviewed the development of research in back analysis area.then,taking some of methods to find out the seep-stoping wall’s physics and mechanics parameters by back analysis what bases on monitoring data in the Sha Wan hydraulic power station project. Aiming at the deep excavation project’s character , author has researched both Elastic-Plastic Finite Element theory and the antilogy of model building.the Bi Ship Method and Intensity Reduce Method of Finite Element also has been used in analyzing the stability of the excavation’s border.The author has completed the following works:1. Firstly the author has fully researched the method of back analysis and safety monitoring ,taking a power station as background, to emphersize the rationality of collocation in safety monitoring .2. Combining with the practically engineering ,particularly introduced the elastic-plastic finite elements theory and built a finite element model ,which can更多还原