露天矿时效边坡稳定性分析与自动化监测系统研究
发布时间：2019-04-01 11:32
【摘要】：露天开采作为矿产资源产出的一种主要开采方式,在为国民经济做出巨大贡献的同时,也对环境造成了很大的破坏,其边坡形状和稳定性直接影响着矿山的安全生产和经济效益。传统边坡理论不考虑边坡的时效性,设计固定的边坡角度,虽然在一定程度上保证了露天矿边坡的安全,但是其保守的设计理念,造成了资源的较大浪费。研究从边坡时效性入手,对边坡进行理论分析和数值模拟试验,根据露天矿边坡监测需求,给出时效边坡自动化监测系统建议。研究的主要内容和成果包含以下几个方面:(1)结合露天矿边坡稳定性理论和时间序列法开展露天矿边坡的时效性理论研究,基于边坡强度参数的时效性数据,给出边坡岩土体参数时间序列分析算例,得到参数的时间序列动态预测公式;同时基于极限平衡法推导出带时间因子的时效边坡稳定性计算公式,并综合分析影响时效边坡稳定性的主要因素,给出时效边坡上缓下陡形状的设计建议。(2)应用有限差分法数值模拟软件FLAC 3D及相应的强度折减法程序求解计算传统边坡和赋时效性参数值的传统边坡模型,提出传统边坡设计坡面角过于保守的观点;设计时效参数下合理边坡角度值确定的数值模拟试验,通过计算拟合得到时效参数条件下坡面角与安全系数的关系式,确定时效参数和固定安全系数下的合理边坡坡面角,从而确定时效边坡的形状和数值模拟模型。对比分析传统边坡和时效边坡的数值模拟结果和综合性能,得到时效边坡稳定性可以达到传统边坡设计要求的同时,还可以减小剥采比,改善矿山经济效益的结论。(3)研究分析时效边坡自动化监测系统的方案设计和系统开发,从确定系统需求着手,确定系统的功能需求和系统总体框架;研究确定边坡监测项目,并根据时效边坡理论和数值计算结论进行合理的设备选型和布置;对比确定监测系统数据传输和处理的方法,以及边坡安全预警的实现方式;基于LabVIEW软件和数据库技术,对时效边坡自动化监测系统进行设计和开发,系统包括系统登录及用户管理模块、数据采集模块、数据分析与预警模块和数据存储管理模块,该监测系统的搭建和实践能够为露天矿时效边坡稳定性监测提供参考。
[Abstract]:As a main mining method of the output of mineral resources, the open-pit mining has caused great damage to the environment while making a great contribution to the national economy, and the shape and stability of the slope directly affect the safety production and economic benefit of the mine. The traditional side slope theory does not take into account the timeliness of the side slope, and the slope angle of the fixed slope is designed, although the safety of the open-pit slope is guaranteed to a certain extent, the conservative design idea of the slope is a great waste of resources. Based on the time-effectiveness of the slope, the theoretical analysis and numerical simulation test of the slope are carried out, and the recommendations of the automatic monitoring system for the time-time slope are given according to the requirements of the slope monitoring of the open-pit mine. The main contents and achievements of the study include the following aspects: (1) The time-effectiveness theory of the slope of the open-pit mine is carried out in combination with the slope stability theory and time series method of the open-pit mine, and the time series analysis of the parameter time series of the side slope is given based on the time-effectiveness data of the slope strength parameter. The time series dynamic prediction formula of the parameters is obtained; meanwhile, the formula for calculating the stability of the aging slope with the time factor is derived based on the limit equilibrium method, and the main factors influencing the stability of the aging slope are comprehensively analyzed, and the design proposal of the slow down and steep shape of the aging slope is given. (2) Using the finite difference method, the numerical simulation software FLAC 3D and the corresponding intensity-fold subtraction program are used to solve the traditional side slope model for calculating the traditional side slope and the time-sensitive parameter value, and the point that the traditional slope design slope angle is too conservative is put forward; According to the numerical simulation test of the reasonable slope angle value under the design aging parameter, the relationship between the slope angle and the safety factor of the aging parameter condition is obtained by calculating the fitting, and the reasonable side slope angle of the aging parameter and the fixed safety factor is determined, So as to determine the shape and the numerical simulation model of the aging slope. By comparing the numerical simulation results and the comprehensive performance of the traditional side slope and the time-time slope, the stability of the time-effective side slope can reach the requirements of the traditional slope design, the stripping ratio can be reduced, and the economic benefit of the mine can be improved. (3) The design and the system development of the automatic monitoring system for the time-time slope are studied, the functional requirements of the system and the overall framework of the system are determined from the requirements of the system, and the slope monitoring project is determined. The method of data transmission and treatment of the monitoring system and the implementation of the safety early warning of the side slope are compared and the method of the data transmission and treatment of the monitoring system and the implementation of the safety early warning of the slope are compared, and based on the software of LabVIEW and the database technology, the system comprises a system login and user management module, a data acquisition module, a data analysis and early warning module and a data storage management module, The construction and practice of the monitoring system can provide a reference for the stability monitoring of the time-effective slope of the open-pit mine.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD76;TD804
[Abstract]:As a main mining method of the output of mineral resources, the open-pit mining has caused great damage to the environment while making a great contribution to the national economy, and the shape and stability of the slope directly affect the safety production and economic benefit of the mine. The traditional side slope theory does not take into account the timeliness of the side slope, and the slope angle of the fixed slope is designed, although the safety of the open-pit slope is guaranteed to a certain extent, the conservative design idea of the slope is a great waste of resources. Based on the time-effectiveness of the slope, the theoretical analysis and numerical simulation test of the slope are carried out, and the recommendations of the automatic monitoring system for the time-time slope are given according to the requirements of the slope monitoring of the open-pit mine. The main contents and achievements of the study include the following aspects: (1) The time-effectiveness theory of the slope of the open-pit mine is carried out in combination with the slope stability theory and time series method of the open-pit mine, and the time series analysis of the parameter time series of the side slope is given based on the time-effectiveness data of the slope strength parameter. The time series dynamic prediction formula of the parameters is obtained; meanwhile, the formula for calculating the stability of the aging slope with the time factor is derived based on the limit equilibrium method, and the main factors influencing the stability of the aging slope are comprehensively analyzed, and the design proposal of the slow down and steep shape of the aging slope is given. (2) Using the finite difference method, the numerical simulation software FLAC 3D and the corresponding intensity-fold subtraction program are used to solve the traditional side slope model for calculating the traditional side slope and the time-sensitive parameter value, and the point that the traditional slope design slope angle is too conservative is put forward; According to the numerical simulation test of the reasonable slope angle value under the design aging parameter, the relationship between the slope angle and the safety factor of the aging parameter condition is obtained by calculating the fitting, and the reasonable side slope angle of the aging parameter and the fixed safety factor is determined, So as to determine the shape and the numerical simulation model of the aging slope. By comparing the numerical simulation results and the comprehensive performance of the traditional side slope and the time-time slope, the stability of the time-effective side slope can reach the requirements of the traditional slope design, the stripping ratio can be reduced, and the economic benefit of the mine can be improved. (3) The design and the system development of the automatic monitoring system for the time-time slope are studied, the functional requirements of the system and the overall framework of the system are determined from the requirements of the system, and the slope monitoring project is determined. The method of data transmission and treatment of the monitoring system and the implementation of the safety early warning of the side slope are compared and the method of the data transmission and treatment of the monitoring system and the implementation of the safety early warning of the slope are compared, and based on the software of LabVIEW and the database technology, the system comprises a system login and user management module, a data acquisition module, a data analysis and early warning module and a data storage management module, The construction and practice of the monitoring system can provide a reference for the stability monitoring of the time-effective slope of the open-pit mine.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD76;TD804
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相关期刊论文 前10条
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