某船闸基坑自动化监测技术可靠性分析

Reliability analysis of automatic monitoring technology for foundation pit of lock

针对人工监测效率不高、监测频率无法满足极端天气下基坑的监测要求等问题,采用自动化监测方法进行监测,并辅以人工监测进行定期比对。结果表明,静力水准仪与电子水准仪监测结果相近,固定式测斜仪与滑动式测斜仪监测结果曲线非常吻合,曲线变化形态与现场施工状况相符。自动化监测用于基坑监测具有良好的可靠性,面对受力复杂、恶劣天气频繁的基坑,在成本可控状态下应尽量采用自动化监测。

To tackle the problems that the efficiency of manual monitoring is not high, and its monitoring frequency cannot satisfy the requirement of foundation pit monitoring under extreme weather, we test the reliability of an automatic monitoring method, with manual monitoring adopted for regular comparison. The results show that the monitoring values of the static level are similar to those of the electronic level. The resulting curve of the fixed inclinometer is nearly the same as that of the sliding inclinometer, and the curve shape is consistent with site construction conditions. The automatic monitoring has good reliability in foundation pit monitoring. For foundation pits subject to complex stress states and frequent bad weather, automatic monitoring should be the first choice for their monitoring in the case of a controllable cost.