文献类型：期刊文献

中文题名：智能隧道激光收敛仪监测隧道拱顶下沉的原理及其应用

英文题名：Principles and Application of a Smart Tunnel Laser Convergence Gauge for Monitoring Tunnel Crown Settlement

作者：夏才初[1,2];那通兴[1];张平阳[1];黄曼[1,2];曾格华[1]

机构：[1]同济大学土木工程学院地下建筑工程系;[2]绍兴文理学院土木工程学院

年份：2018

卷号：55

期号：2

起止页码：20

中文期刊名：现代隧道技术

外文期刊名：Modern Tunnelling Technology

收录：CSTPCD、、CSCD_E2017_2018、北大核心2017、Scopus、北大核心、CSCD

基金：国家自然科学基金项目(51278378;41327001)

语种：中文

中文关键词：智能隧道激光收敛仪;拱顶下沉;精度评估;理论分析;对比试验

外文关键词：Smart tunnel laser convergence gauge;Crown settlement;Accuracy assessment;Theoretic analysis;Comparative test

中文摘要：在隧道施工时,通过监测隧道的拱顶下沉可以判断围岩的稳定状况,从而保证隧道的施工安全。精密水准仪的工作强度高、难度大、挂尺难;虽然全站仪三角高程法测量精度可达毫米级,但在工程中的应用仍然较少。为提高隧道拱顶下沉的监测效率,文章提出了一种用智能隧道激光收敛仪监测隧道拱顶下沉的非接触量测方法,并简述了监测隧道拱顶下沉的测量步骤。通过理论推导分析,实验室内和隧道现场的重复性测量试验表明,智能隧道激光收敛仪监测隧道拱顶下沉的精度可达0.70 mm。在青岛某洞库和敦格铁路当金山隧道施工现场,与DS05精密水准仪和徕卡TS15全站仪的对比监测验证了智能隧道激光收敛仪监测隧道拱顶下沉的精度和稳定性。智能隧道激光收敛仪监测隧道拱顶下沉的方法精度可靠、监测效率高、施工干扰少,还可同时监测隧道周边收敛,具有广泛的应用前景。

外文摘要：Monitoring tunnel crown settlement is a way to evaluate the stability of surrounding rock during tunnelconstruction and to ensure tunnel construction safety. However, it is difficult to operate a grade rod for the preciseleveling instrument and it is quite intense work. Though total station trigonometric leveling can be accurate to a mil-limeter, it is not often applied in engineering. In order to improve the efficiency of crown settlement monitoring intunnels, non-contact measurement using a smart tunnel laser convergence gauge to monitor tunnel crown settlementis proposed, and the monitoring steps are briefly introduced in this paper. Through theory analysis, the repeatedmonitoring and measuring tests both in the laboratory and onsite indicate that the precision of crown settlementmonitoring using the smart tunnel laser convergence gauge can reach 0.70 mm. Compared with results from a DS05 percussive leveling instrument and a Leica TS15 total station on the construction sites of a cavern project in the Qin-dao and the Dangjinshan tunnel on the Dunge railway, the monitoring accuracy and stability of the smart tunnel la-ser convergence gauge are verified. The application prospects are vast using the smart tunnel laser convergencegauge to measure and monitor tunnel crown settlement thanks to its reliable precision, high efficiency, minimizedconstruction disturbance and ability to simultaneously monitor peripheral convergence.