【作者】 聂闻；

【导师】 许江；

【作者基本信息】 重庆大学 ， 采矿工程， 2011， 硕士

【摘要】 中国是个多山的国家,山地约占全国面积的2/3,是世界上山体滑坡较多的国家之一。除了自然因素引起的山体滑坡外,随着国民经济的蓬勃发展,各项工程活动也对山体地质环境往往起着破坏性的作用。在铁路、公路、水利、航运、采矿、建筑以及国防建设中经常遇到斜(边)的稳定性问题。在中国,每年由山体滑坡引起的损失超过3亿美元,而在全世界却高达10亿美元之多。这些使山体滑坡成为除地震外最大的自然灾害。由于山体滑坡引起如此多的财产损失、人员伤亡,早期预警系统的建立就显得十分必要了。随着科学的发展一些新的监测技术进入人们视野,用传感器作为监测仪器来研究山体滑坡监测的研究变得非常重要。这些研究及时捕捉崩滑灾害的特征信息,为崩塌、山体滑坡的正确分析评价、预测预报及治理工程等提供可靠资料和科学依据。论文的目标就是研究如何在实验室实现传感器监测模拟。我们主要以美国基康公司的5种不同传感器为研究对象(如表面位移计、埋入式位移计、多点位移计、土压力计、测斜仪),分别研究如何设计机械工装来帮助传感器实现山体滑坡模拟及如何调试、测试整个监测控制系统的可靠性与稳定性。为从山体滑坡体内部、相关因素、诱发因素去更好地分析了解山体滑坡的稳定性提供了信息,多角度多方位地扩大了思路。此外还编写程序软件,建立山体滑坡监测预警系统,为危险数据的管理和预警、为以后的进一步实验室研究打下坚实基础。本文的主要研究工作及其研究成果:(1)首先分析了山体滑坡的类型、影响因素,并对斜坡的结构、变形破坏原理及其他地质模型进行了总结。找到了实施山体滑坡监测的切入点,并对当前的边坡监测方法进行了总结,为进一步研究打下了基础;(2)分析了不同传感器的工作原理、优缺点的基础上,同时阐述了多种用于判断山体滑坡是否处于稳定状态的监测预警指标(如稳定性系数、可靠概率、位移速率、位移加速度、塑性应变率、蠕变曲线切线角、位移矢量角、声发射参数、分维值等),给传感器预警系统的建立打下了坚实的基础;(3)根据表面位移计、埋入式位移计、多点位移计、土压力计、测斜仪的工作原理,分别设计了不同的机械工装来带动其运动模拟山体滑坡发生现场,并用数据测试装置来检测机械工装模拟山体滑坡的模拟效果,通过多次测试得出测试位移与给定位移相似度达到96%以上,以证明该装置确实能有效的模拟山体滑坡现场;(4)为方便于对监测数据的管理与实时分析,以便及时发现预警情况,采用VC++程序进行编程,分别针对表面位移计、埋入式位移计、多点位移计、土压力计、测斜仪的不同监测指标设计不同的管理子软件,并与临界安全值比较,当其监测数据接近临界安全值时,该软件会自动发出警告,最后用Delphi设计出一套软件可以同时管理这5个子软件,使该预警系统成为一个整体。更多还原

【Abstract】 China is one of countries full of landslides mostly in the world and the mountain area accounts for about 2 / 3. Besides the natural factors leading to landslides, with the vigorous development of the national economy, the engineering activities on mountain zoon also play a destructive role in the environment. In railway, highway, water conservancy, shipping, mining, construction and national defense we have to face the slope stability problems. Damage caused by landslides exceeds $ 3 billion annually in China and more than $ 10 billion each year worldwide, making losses attributed to landslides greater than any other natural disaster except earthquake. Along with massive property loss, thousands people are killed and injured every year as the result of landslides. Potentially, much of this property damage and many of the injuries and deaths can be avoided with an operational landslide warning system. As the development of new monitoring technology, using sensors for monitoring landslide has become very important. These studies can make contributions to capturing the characteristics of landslides in time, which provide reliable information and scientific basis for correct landslides analysis, evaluation, prediction and control.The paper’s goal is to study simulation of landslide and using sensors to monitor the landslide in the laboratory. Five different kinds of sensors are from Geokon Company, United States (surface displacement meter, embedded displacement meter, multi-point displacement meter, earth pressure cell, and inclinometer). Our jobs are to design the auxiliary tooling which can help to achieve simulation of landslide and how to debug and test the identification part of whole monitoring system. They are helpful for multi-angle and multi-faceted expansion of the ideas such as internal results, related factors, predisposing factors. In addition, programming software is used to establish landslide warning system for risk data management and early warning in the future. Some practical significance and scientific research achievements of value are got. To sum up, in the following aspects:Firstly the types of landslide, impact factors, slope of the structure, deformation theory and other geological model are the focus points. The next step is finding the key points for the landslide monitoring and then we summarized the current monitoring methods.Different sensors working principle, advantages and disadvantages are analyzed in detail. Monitoring and early warning indicators which determine whether a slope is in safe state are introduced (stability factor, reliable probability, displacement rate, displacement acceleration, strain rate, creep curve tangent angle, displacement vector angle, acoustic emission parameters, fractal dimension, etc.). All of these make the early warning indicators, sensors monitoring and early warning form an organic whole logically.According to different working principles of the five sensors (surface displacement meter, embedded displacement meter, multi-point displacement meter, earth pressure cell, and inclinometer) five different auxiliary tooling which can help to achieve simulation of landslide are designed. By analyzing data testing device is used to detect the similarity between simulated landslide brought by machine tooling and the real one. Test displacement and given displacement show that there are more than 96% similarity. It can really prove that the device can simulate landslide effectively.In order to facilitate the management of monitoring data and find suddenly changed data, with considering the different monitoring indicators we use VC + + to make programs for the surface displacement transducer, embedded displacement meter, multi-point displacement meter, earth pressure, and inclinometer respectively. Compared to safety value when there is danger, the software will automatically issue a warning. Finally, Delphi is used to design software which can manage the five programs. So the warning system becomes a whole.更多还原