Automatic monitoring system on highway slopes based on GNSS technique
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摘要: 为探究基于GNSS监测站的高速公路边坡自动化监测系统的实际作用，本文以重庆巴南至綦江高速公路YQTJ5标青年互通K69+080段为依托进行研究。首先，基于LZMR02-GNSS接收机和FS-YL雨量计自主开发北斗+安全监测云平台，能够实时管理和分析现场布置的GNSS地表位移监测站和深层位移监测孔，监测结果表明该坡体已出现局部垮塌及开裂等不稳定现象并且迅速发出预警到相关部门单位；随后，基于传递系数法计算该边坡的剩余下滑力并且采用Geo5有限元软件进行数值模拟，其结果均验证了该监测系统的准确性。因此，建立高速公路边坡自动化监测系统不仅能解决常规人工监测边坡的不足，也能保证监测数据的时效性，为未来智能化监测边坡提供了一定的参考价值。Abstract: In order to explore the practical role of highway slope automatic monitoring system based on GNSS monitoring station, this paper studies the K69 + 080 section of YQTJ5 section of Chongqing Banan Qijiang Expressway. Firstly, based on LZMR02-GNSS receiver and FS-YL rain gauge, Beidou + safety monitoring cloud platform is independently developed, which can manage and analyze the GNSS surface displacement monitoring stations and deep displacement monitoring holes arranged on site in real time. The monitoring results show that the slope has local collapse and cracking and other unstable phenomena, and early warning is sent to relevant departments and units. Then, the residual sliding force of the slope is calculated based on the transfer coefficient method, and the numerical simulation is carried out by using Geo5 finite element software. The results verify the accuracy of the monitoring system. Therefore, the establishment of highway slope automatic monitoring system can not only solve the shortcomings of conventional manual monitoring of slope, but also ensure the timeliness of monitoring data, which provides a certain reference value for future intelligent monitoring of slope.
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Key words:
- highways /
- slope monitoring /
- GNSS technology /
- disaster warning
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