山岭隧道施工监测技术实践及预警管理

Monitoring Technologies and Warning Management for Construction of Mountain-crossing Tunnels

为了保证及时获得有效、可信的监测数据,分析监测工作中存在的问题,进行监测过程控制的研究,提出结合工况进行监测过程控制的方法和数据判读实例,报告监测过程控制的准则和技术要领。认为:1)在监测工作实践中,只有解决好对监测过程的有效控制,同时解决好监测数据与实际现象的对照,才能保证预警的准确、及时。2)在保证合理的人员、设备投入的前提条件下,执行基点联测、检核避错等6项监测工作制度,是保证获得可信的监测数据的有效途径。3)在保证能有效观测到围岩变形量波动值的前提条件下,适当降低监测仪器的精度要求,并采取与施工过程密切配合的施测方法,能显著提高监测效率。

Problems in monitoring are analyzed. Monitoring process control is studied. Criterion and technical key points of monitoring process control are proposed. Conclusions drawn are as follows： 1 ） Only when the monitoring process is well controlled and the monitoring data are well compared to the actual performance, can accurate and timely warning be given. 2） Implementing 6 monitoring Systems is an effective way to obtain reliable monitoring data. 3 ） The monitoring efficiency can be improved if the precision requirement for the monitoring instruments and devices is properly lowered and the monitoring is well coordinated with the construction process.