城市地下道路隧道结构健康监测研究

丁鸿志，邹鸿浩，张忠宇，李奥，董飞

摘要:

城市交通隧道的数量随着经济发展不断增多,隧道结构健康监测系统作为掌握隧道结构安全状态的有效措施也得到一定的发展。地下道路隧道由于投资规模、隧道长度较小等原因,致使结构健康系统较少应用在地下道路隧道中。本文依托园腾路地下道路隧道,采用“半智能化”结构健康监测的方式,降低结构健康系统成本的前提下,对隧道结构健康状态进行必要的监测。同时,对比测缝计、静力水准仪及形状传感器的监测结果,验证了形状传感器在接缝张开量、接缝两侧不均匀沉降的可行性。对城市地下道路等短隧道,降低结构健康监测系统的智能化程度、应用新型传感器现降低成本,提高结构健康监测系统在短隧道的使用率,对于提高管养质量、保障地下道路隧道结构安全上具有重要意义。

Abstract:

The number of urban traffic tunnels is increasing with the economic development, and the tunnel structural health monitoring, as an effective measure to grasp the safety state of tunnel structure, has also been developed to a certain extent. Due to the small investment scale and tunnel length of underground road tunnel, the structural health system is rarely used in underground road tunnel. Relying on underground road tunnel of Yuanteng Road, this paper adopts the semi intelligent structural health monitoring method to monitor the tunnel structural health status on the premise of reducing the cost of structural health system. At the same time, the monitoring results of joint gauge, static level and shape sensor are compared to verify the feasibility of shape sensor in joint opening and uneven settlement on both sides of joint. For short tunnels such as urban underground roads, reducing the intelligent degree of structural health monitoring system, applying new sensors, reducing the cost and improving the utilization rate of structural health monitoring system in short tunnels are of great significance for improving the quality of management and maintenance and ensuring the safety of underground passages.