小湾水电站孔雀沟料场边坡稳定性监测成果分析

孔雀沟石料场为小湾水电站的拱坝混凝土骨料主料场。石料开采过程中将逐渐形成高达近500m的永久单体边坡,定期对边坡的稳定性进行复核十分必要。通过表面变形、深部变形、支护效应等手段对料场边坡变形进行全面监测,为了解料场边坡的稳定性、进行安全评价及边坡支护方案的调整提供了重要依据和有力支持。     

吉家河滑坡变形实时监测研究

根据对吉家河滑坡的实地考察,制定滑坡变形实时监测方案,在滑坡体上设置10个地表变形监测点,并设置3个钻孔用于滑坡深部变形监测,在钻孔底部埋设孔隙水压力计,用于对滑坡内部孔隙水压力的监测.通过为期14个月的监测及对监测数据的分析,说明吉家河滑坡由南向东向左旋转变形,变形量不大,整体保持稳定.     

滑坡监测远程无线数据传输系统研制

利用先进的监测仪器和现代无线通讯技术,开发了一套可以对滑坡灾害进行自动实时监控的监测系统。 安置在监测点现场的数据交换仪与各种监测仪器相连接,读取仪器信号、转换信号类型、存储数据;室内设一控 制中心,借助覆盖范围广的移动通讯网络,对现场数据交换仪进行控制,实现数据回送、数据删除、监测模式设 定、预警信号发送等作业;对监测数据进行分析处理,供研究人员使用。现场设备可由太阳能供电,适合偏远地 区使用。通过室内模拟实验,该系统功能稳定,数据传输及时准确。     

GPS—RTK露天矿边坡监测系统的研究

介绍了GPS—RTK露天矿边坡监测系统基本情况，阐述了GPS—RTK技术监测露天矿边坡的过程及技术要点，根据GPS—RTK系统对露天矿边坡监测的记录数据和变化趋势提出了边坡预警的准则。     

计算机集成制造系统中的远程监测与故障诊断研究

将计算机技术、信息技术、自动化技术、故障诊断技术作为平台,建立远程监测和故障诊断系统的基本架构,简要说明其运行模式。     

GPRS网络远程多媒体监测系统的开发

GPRS网络多媒体远程监控系统与其他远程监控系统的主要不同点在于系统增加了对多媒体信息的压缩/解压处理模块,因此在GPRS网络上多媒体信息传输具有可能性。本文介绍了一个实际的GPRS网络多媒体远程监测功能模块的设计。实测验证所开发的实验系统可行。     

济南市空气质量实时监测信息系统的开发

该系统利用INTERNET技术、数据库技术、GIS技术,实现了对城市中各监测子站的环境空气质量状况信息的远程实时传输,并将传送过来的数据进行处理和分析,本文主要描述济南市空气质量实时监测信息系统的开发流程,给出本系统的结构框架和实现的主要功能,最后给出了本系统的安全性和使用情况。     

广东石露天矿西帮终帮边坡稳定性预测

该矿西帮边坡变形破坏的主要形式是滑坡，运用ｓａｒｍａ～ｍｏｎｔｅｃａｒｌｏ模拟预测该边坡的稳定性：正常水位下该边坡稳定系数为０８９～０９２，破坏概率为８５％～８７％，属不稳定边帮；当坡体排水达１００％时，稳定系数为１０８～１１２，破坏概率为３５％～３８％。     

露天矿排土场边坡稳定性分析

针对安太堡露天矿内排土场边坡,介绍了边坡的工程概况和地质条件.结合边坡工程的具体特点,首先运用SLIDE软件,对不同工况下边坡强度稳定性进行对比分析,进而对位移监测数据发展趋势进行了研究.结果表明：排土场边坡的变形处于不断发展的过程中,在降雨或地震的作用下排土场边坡稳定系数明显降低,可能滑动面扩大,特别是在降雨条件下局部危险滑动面可能发生贯通,边坡存在整体失稳的可能.通过研究,可为排土场边坡综合治理措施的制定提供依据.     

公路高边坡稳定性远程监控技术研究

结合河北省邢汾高速公路深路堑边坡工程实际,建立了基于GSM网络的边坡地质灾害远程监控系统。监测项目主要包括边坡岩体深部位移和降雨量,监测系统确定了位移值和位移速率预警值,并根据外界条件变化和监测结果实时调整监测频率,编制了现场监控预警系统的技术方案。     

High precision slope deformation monitoring model based on the GPS/Pseudolites technology in open-pit mine

As the number and geometric intensity of visual satellites are susceptible to large slopes in open-pit mines, we propose integration of GPS/Pseudolites (PLs) positioning technology which can increase the number of visible satellites, strengthen the geometric intensity of satellites and provide a precision solution for slope deformation monitoring. However, the un-modeled systematic errors are still the main limiting factors for high precision baseline solution. In order to eliminate the un-modeled systematic error, the Empirical Mode Decomposition (EMD) theory is employed. The multi-scale decomposition and reconstruction architecture are defined here on the basis of the EMD theory and the systematic error mitigation model is demonstrated as well. A standard of the scale selection for the systematic error elimination is given in terms of the mean of the accumulated standardized modes. Thereafter, the scheme of the GPS/PLs baseline solution based on the EMD is suggested. The simulation and experiment results show that the precision factors (DOP) are reduced greatly when PLs is located suitably. The proposed scheme dramatically improves the reliability of ambiguity resolution and the precision of baseline vector after systematic error being eliminated, and provides an effective model for high precision slope deformation monitoring in open-pit mine.     

Application of remote monitoring technology in landslides in the Luoshan mining area

With the scale extending of mining, the landslide disaster in the earth's surface will become more and more serious, and these landslide disasters are being threatened to the sustainable safe mining of the underground mine and the open-pit mine. Based on the theory that sliding force is greater than the shear resistance (resisting force) at the potential slip surface is the necessary and sufficient condition to occur the landslide as the sliding criterion, the principle and method for sliding force remote monitoring is presented, and the functional relationship between the human mechanical quantity and the natural sliding force is derived, hereby, the natural sliding force can be calculated according to the human mechanical quantity. Based on above principle and method, a new system of landslide remote monitoring is designed and 53 systems are installed on the landslide body in the Luoshan mining area, which make up the landslide remote monitoring network. According to the results of field test around 8 months, monitoring curves between sliding force and time are obtained, which can describe and forecast the develop trend of landslide. According to above analysis, the results show that this system has some following advantages: (1) real-time monitoring; (2) remote intelligent transmission; (3) landslides early warning.     

遥测式粗轧机主传动轴扭矩实时监测系统

为实现轧制工况的动态监控,对粗轧机主传动轴扭矩进行实时监测。采用基于非接触式遥测扭矩传感器的工业控制器,将获得的扭矩信号通过TCP/IP通信协议传输到服务器,从而实现对数据的实时显示、存储和分析处理。     

GIS-based 3D limit equilibrium analysis for design optimization of a 600 m high slope in an open pit mine

1. Introduction An economical and safe plan of slope angle is an important issue for the slope designing of an open pit mine. In the practice of geotechnical engineering, a two-dimensional (2D) limit equilibrium method is gen- erally employed to calculate the safety factor against failure for a slope. Assuming a plane-strain condition, the safety factor is commonly assessed through a 2D idealization of the slope, for example, an “equivalent” plane-strain problem is postulated and analyzed […     

Stability analysis of the sliding process of the west slope in Buzhaoba Open-Pit Mine

To study the stability of the west slope in Buzhaoba Open-Pit Mine and determine the aging stability coefficient during slide mass development, the deformation band of the west slope and the slide mass structure of the 34,600 profile are obtained on the basis of hydrology, geology, and monitoring data.The residual thrust method is utilized to calculate the stability coefficients, which are 1.225 and 1.00 under sound and transfixion conditions, respectively. According to the rock damage and fragmentation and the principle of mechanical parameter degradation, the mechanical models of the slide mass development of the hard and soft rock slopes are established. An integrated model for calculating the slope stability coefficient is built considering water, vibration, and other external factors that pertain to the structural plane damage mechanism and the generating mechanism of the sliding mass. The change curve of the stability coefficient in the slide mass development is obtained from the relevant analyses,and afterwards, the stability control measures are proposed. The analysis results indicate that in the cracking stage of the hard rock, the slope stability coefficient decreases linearly with the increase in the length Lbof the hard rock crack zone. The linear slope is positively correlated to rock cohesion c. In the transfixion stage of the soft rock, the decrease speed of the stability coefficient is positively correlated to the residual strength of the soft rock. When the slope is stable, the stability coefficient is in a quadratic-linear relationship with the decreased height Dh of the side slope and in a linear relationship with anchoring force P.     

某露天矿陡帮边坡稳定性分析与加固设计

根据某露天矿陡帮边坡的工程实际,采用极限平衡方法等进行了露天矿陡帮边坡的稳定性分析,提出了合理而有效的加固方案,并进行了加固后的边坡稳定性分析和评价.结果表明：该露天矿陡帮边坡长期暴露在自然条件下稳定性会逐渐降低,如遇饱水或渗流,边坡可能会发生失稳.采用预应力锚索框架梁加固后,边坡的稳定系数显著提高,边坡处于稳定状态,从而保证了矿区的安全生产.     

航标遥测遥控终端可靠性设计方法

据航标遥测遥控终端的高可靠性要求,对影响航标遥测遥控终端可靠性的主要因素做了分析,并针对硬件可靠性设计和软件可靠性设计的要求,提出了采用双机热备份、终端远程在线升级的可靠性设计方法.采用Lambda Predict、Relex Studio可靠性预计软件,对终端硬件系统的可靠性进行评价,结果显示航标遥测遥控终端理论可靠度指标和有效度指标均满足电子设备和信息系统建设的可靠性要求.实际应用表明,该技术不仅能够显著提高终端的可靠性,还可提高系统升级与维护的便利性.