大型水电站边坡安全评价和预警决策系统开发
发布时间：2018-08-27 19:52
【摘要】：水电开发过程中不可避免地会遇到众多高边坡工程问题，尤其是水能资源丰富的西南高山峡谷地区。本文在现有边坡安全评价和预警研究成果的基础上，从边坡信息采集、监测信息处理与分析预测、实时安全评价和预警与辅助决策四部分内容开展了系统的研究，并开发了一套适用于大型水电站边坡的安全评价和预警决策系统。主要研究内容及成果概括如下： （1）基于物联网技术搭建边坡工程信息采集及反馈平台。将物联网技术应用到水电站边坡工程中，基于传感器、无线传感器网络、3G/4G网络和互联网等技术，搭建信息采集与反馈平台。 （2）以实时监测数据为基础，基于可变集理论提出边坡实测性态实时评价方法。依据边坡不同时期的监测布置情况动态建立边坡实测性态综合评价体系，针对不同评价指标分别根据数值模拟、统计分析或经验动态拟定指标的评价标准，综合主、客观权重确定随监测状态变化的指标动态权重，最后基于可变集理论实现边坡实测性态的实时综合评价。 （3）考虑边坡施工过程中开挖进度的变化、新地质信息的揭露、支护方案的修改及计算参数的修正等变化信息，提出了基于数值模拟技术的边坡实时安全仿真方法。基于数据库技术和ABAQUS二次开发技术实现施工进度信息、地质信息及支护信息到数值计算模型的动态映射，依据实时监测信息实现对边坡岩体力学参数的动态反演，最终实现边坡安全状态的实时仿真分析和预测。 （4）基于边坡监测信息异常评判、边坡实测性态实时评价、边坡实时安全仿真及专家知识库等提出两阶段的边坡安全预警体系。采用时空分布评判、力学规律评判、监控模型评判及监控指标评判实时在线侦查异常；发现异常后利用边坡实测性态综合评价方法和边坡实时安全仿真方法等进一步分析边坡的整体、局部安全状态及可能发生的灾害形式；基于各种分析结果，运用基于评价结果的专家系统确定最终边坡预警级别；根据边坡可能的灾害形式、边坡级别和危险级别迅速启动相应的应急方案。 （5）开发包括三个平台、五个模块和一个网站的大型水电站边坡安全评价和预警决策系统。系统实现“采集-处理-分析-评价-反馈-预警-决策”的一体化实时分析和快速反馈。
[Abstract]:In the process of hydropower development, many problems of high slope engineering will inevitably be encountered, especially in the mountainous gorge area of southwest China, which is rich in hydro-energy resources. Based on the existing research results of slope safety evaluation and early warning, this paper has carried out systematic research from four parts: slope information collection, monitoring information processing and analysis and prediction, real-time safety evaluation, early warning and auxiliary decision-making. A set of safety evaluation and early-warning decision-making system for large-scale hydropower station slope is developed. The main research contents and results are summarized as follows: (1) based on the Internet of things technology to build slope engineering information collection and feedback platform. Based on sensor, wireless sensor network (WSN) 3G / 4G network and Internet, the platform of information acquisition and feedback is built. (2) based on real-time monitoring data, the Internet of things is applied to the slope engineering of hydropower station. Based on the theory of variable set, a real-time evaluation method for slope performance is proposed. According to the dynamic monitoring and layout of slope in different periods, the comprehensive evaluation system of the measured behavior of slope is established. According to the numerical simulation, statistical analysis or empirical dynamic determination of the evaluation standard of the index, the comprehensive evaluation system is synthesized. The objective weight determines the dynamic weight of the indexes varying with the monitoring state. Finally, based on the variable set theory, the real-time comprehensive evaluation of the measured behavior of the slope is realized. (3) considering the variation of the excavation schedule during the slope construction, the new geological information is disclosed. Based on the change information of support scheme and calculation parameters, a real-time safety simulation method of slope based on numerical simulation technology is proposed. Based on database technology and ABAQUS secondary development technology, the dynamic mapping of construction progress information, geological information and support information to numerical calculation model is realized, and the dynamic inversion of mechanical parameters of slope rock mass is realized based on real-time monitoring information. Finally, the real-time simulation analysis and prediction of slope safety state are realized. (4) based on the abnormal evaluation of slope monitoring information, the real-time evaluation of slope measured state is achieved. A two-stage slope safety early warning system is proposed by real-time slope safety simulation and expert knowledge base. Temporal and spatial distribution evaluation, mechanical law evaluation, monitoring model evaluation and monitoring index are used to evaluate real-time online detection anomalies. After finding the anomaly, the comprehensive evaluation method of slope measured behavior and the real-time safety simulation method of slope are used to further analyze the whole, local safety state and possible disaster forms of the slope, based on various analysis results, Using the expert system based on the evaluation results to determine the final slope warning level; according to the slope possible disaster form, the slope level and the danger level start up the corresponding emergency plan quickly. (5) the development includes three platforms, Five modules and a website for slope safety evaluation and early-warning decision-making system of large hydropower station. The system realizes the integration of real-time analysis and fast feedback of "acquisition-processing-analysis-evaluation-feedback-early warning-decision".
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV223
本文编号：2208288
[Abstract]:In the process of hydropower development, many problems of high slope engineering will inevitably be encountered, especially in the mountainous gorge area of southwest China, which is rich in hydro-energy resources. Based on the existing research results of slope safety evaluation and early warning, this paper has carried out systematic research from four parts: slope information collection, monitoring information processing and analysis and prediction, real-time safety evaluation, early warning and auxiliary decision-making. A set of safety evaluation and early-warning decision-making system for large-scale hydropower station slope is developed. The main research contents and results are summarized as follows: (1) based on the Internet of things technology to build slope engineering information collection and feedback platform. Based on sensor, wireless sensor network (WSN) 3G / 4G network and Internet, the platform of information acquisition and feedback is built. (2) based on real-time monitoring data, the Internet of things is applied to the slope engineering of hydropower station. Based on the theory of variable set, a real-time evaluation method for slope performance is proposed. According to the dynamic monitoring and layout of slope in different periods, the comprehensive evaluation system of the measured behavior of slope is established. According to the numerical simulation, statistical analysis or empirical dynamic determination of the evaluation standard of the index, the comprehensive evaluation system is synthesized. The objective weight determines the dynamic weight of the indexes varying with the monitoring state. Finally, based on the variable set theory, the real-time comprehensive evaluation of the measured behavior of the slope is realized. (3) considering the variation of the excavation schedule during the slope construction, the new geological information is disclosed. Based on the change information of support scheme and calculation parameters, a real-time safety simulation method of slope based on numerical simulation technology is proposed. Based on database technology and ABAQUS secondary development technology, the dynamic mapping of construction progress information, geological information and support information to numerical calculation model is realized, and the dynamic inversion of mechanical parameters of slope rock mass is realized based on real-time monitoring information. Finally, the real-time simulation analysis and prediction of slope safety state are realized. (4) based on the abnormal evaluation of slope monitoring information, the real-time evaluation of slope measured state is achieved. A two-stage slope safety early warning system is proposed by real-time slope safety simulation and expert knowledge base. Temporal and spatial distribution evaluation, mechanical law evaluation, monitoring model evaluation and monitoring index are used to evaluate real-time online detection anomalies. After finding the anomaly, the comprehensive evaluation method of slope measured behavior and the real-time safety simulation method of slope are used to further analyze the whole, local safety state and possible disaster forms of the slope, based on various analysis results, Using the expert system based on the evaluation results to determine the final slope warning level; according to the slope possible disaster form, the slope level and the danger level start up the corresponding emergency plan quickly. (5) the development includes three platforms, Five modules and a website for slope safety evaluation and early-warning decision-making system of large hydropower station. The system realizes the integration of real-time analysis and fast feedback of "acquisition-processing-analysis-evaluation-feedback-early warning-decision".
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV223
【参考文献】
相关期刊论文 前10条
1 赵尚毅,时卫民,郑颖人;边坡稳定性分析的有限元法[J];地下空间;2001年S1期
2 王瑞江,吴树仁,胡道功,石玲;滑坡稳定性三维数值模拟分析[J];长春科技大学学报;1999年03期
3 汪华斌,徐瑞春;BP神经网络在鱼洞河滑坡稳定性评价中的应用[J];长江科学院院报;2002年04期
4 吴连英;陈洪凯;;滑坡整体稳定性遗传分析法及应用[J];重庆交通大学学报(自然科学版);2009年05期
5 潘国荣;谷川;;形变监测数据组合预测[J];大地测量与地球动力学;2006年04期
6 陈守煜;工程可变模糊集理论与模型——模糊水文水资源学数学基础[J];大连理工大学学报;2005年02期
7 张华杰，袁国斌，墙芳躅，，殷坤龙，胡尊国，李显忠;滑坡预测与风险评价专家系统[J];地学前缘;1996年01期
8 刘立平,姜德义,郑硕才,雷进生,林登发;边坡稳定性分析方法的最新进展[J];重庆大学学报(自然科学版);2000年03期
9 董晓红;梁桂兰;许忠厚;;边坡稳定分析方法综述及发展趋势研究[J];水利与建筑工程学报;2012年05期
10 李聪;申思然;刘江;朱杰兵;汪斌;;基于动态权重的土质岸坡稳定性模糊评价方法[J];长江科学院院报;2013年01期
相关博士学位论文 前4条
1 徐兴华;公路边坡信息综合管理与安全评判决策[D];浙江大学;2011年
2 李聪;边坡变形与稳定性演化预测预警方法研究[D];武汉大学;2011年
3 林孝松;山区公路边坡安全评价与灾害预警研究[D];重庆大学;2010年
4 何文娜;大数据时代基于物联网和云计算的地质信息化研究[D];吉林大学;2013年
本文编号：2208288
本文链接：https://www.wllwen.com/kejilunwen/shuiwenshuili/2208288.html
