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Application of remote monitoring technology in landslides in the Luoshan mining area 被引量:29
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作者 HE Man-chao TAO Zhi-gang ZHANG Bin 《Mining Science and Technology》 EI CAS 2009年第5期609-614,共6页
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 undergroun... 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. 展开更多
关键词 山体滑坡 监测技术 矿区 远程监控系统 遥感 应用 远程监控网络 滑坡灾害
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A new early-warning prediction system for monitoring shear force of fault plane in the active fault 被引量:2
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作者 Manchao He Yu Wang Zhigang Tao 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE 2010年第3期223-231,共9页
The most common method used to describe earthquake activity is based on the changes in physical parameters of the earth's surface such as displacement of active fault and seismic wave.However,such approach is not suc... The most common method used to describe earthquake activity is based on the changes in physical parameters of the earth's surface such as displacement of active fault and seismic wave.However,such approach is not successful in forecasting the movement behaviors of faults.In the present study,a new mechanical model of fault activity,considering the shear strength on the fault plane and the influence of the resistance force,is established based on the occurrence condition of earthquake.A remote real-time monitoring system is correspondingly developed to obtain the changes in mechanical components within fault.Taking into consideration the local geological conditions and the history of fault activity in Zhangjiakou of China,an active fault exposed in the region of Zhangjiakou is selected to be directly monitored by the real-time monitoring technique.A thorough investigation on local fault structures results in the selection of two suitable sites for monitoring potential active tectonic movements of Zhangjiakou fault.Two monitoring curves of shear strength,recorded during a monitoring period of 6 months,turn out to be steady,which indicates that the potential seismic activities hardly occur in the adjacent region in the near future.This monitoring technique can be used for early-warning prediction of the movement of active fault,and can help to further gain an insight into the interaction between fault activity and relevant mechanisms. 展开更多
关键词 active faults monitoring EARTHQUAKE early-warning system shear strength
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粗粒料的级配方程及其适用性研究 被引量:1
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作者 吴二鲁 朱俊高 +2 位作者 陈鸽 包孟碟 郭万里 《Journal of Central South University》 SCIE EI CAS CSCD 2020年第3期911-919,共9页
级配方程可以准确和定量地表示粗粒料的级配,级配方程使得定量研究粗粒料级配与其物理力学性质之间的关系成为可能。提出了一个适用于描述粗粒料连续级配的级配方程,并对该级配方程的基本性质和适用性进行了研究。结果表明:提出的级配... 级配方程可以准确和定量地表示粗粒料的级配,级配方程使得定量研究粗粒料级配与其物理力学性质之间的关系成为可能。提出了一个适用于描述粗粒料连续级配的级配方程,并对该级配方程的基本性质和适用性进行了研究。结果表明:提出的级配方程对粗粒料的级配具有良好的适用性。方程参数β的范围为(0,1),参数的大小决定了级配曲线的类型。当β大于0.5时,方程表示的级配曲线为反S形,否则为双曲线形。当β为0.13~1时,方程表示的级配为良好级配。对国内外土石坝用粗粒料的级配曲线进行了探讨,其参数值为0.18~0.97。该范围的确定对土石坝用粗粒料级配的设计具有指导价值。 展开更多
关键词 级配曲线 级配方程 粗粒料 适用性
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