工程技术研究与标准化中心（ETRSC）于6月10日正式对外发布《复杂地形隧道群智能监测技术建议书》。该建议书是ETRSC自2019年成立以来输出的第21份行业技术建议书，也是首份聚焦"隧道群"这一复合型工程对象的技术建议。
建议书由ETRSC组织HETEC专家委员会的7位相关领域专家共同起草，起草周期为10个月，内容涵盖监测传感器布设原则、数据采集与传输架构、风险预警阈值确定方法、人工巡检与自动监测的协同机制等五大核心章节。
与传统的单一隧道监测指引不同，建议书特别强调"群效应"——即相邻隧道之间在地质、渗流、振动、温度等方面的相互影响。建议书在附录中给出了三种典型复杂地形（山区、沿海、跨断裂带）下的监测布设参考方案，每种方案均配有具体的传感器清单与阈值表。
建议书起草组组长、HETEC资深专家委员许建衡在发布说明中指出，隧道群的监测不能简单套用单条隧道的规范，因为相邻隧道在长期运营中会形成耦合效应，任何一条隧道出现异常都可能影响整个隧道群的安全评估。这份建议书的目标，是为工程单位提供一个系统性的思考起点。
建议书全文已在HETRA网站开放下载，任何注册用户均可免费获取。建议书发布后一周内，已累计被下载超过1800次，其中超过一半来自非会员用户。ETRSC表示，未来将继续扩大技术建议书的开放程度，让行业公共知识真正在行业内流动起来。
The Engineering Technology Research and Standardization Center (ETRSC) officially released the Technical Recommendation on Intelligent Monitoring of Tunnel Groups in Complex Terrain to the public on June 10. This recommendation is the 21st industry technical recommendation issued by ETRSC since its establishment in 2019, and it is also the first technical recommendation focused on the composite engineering object of "tunnel groups."
The recommendation was jointly drafted by seven relevant-field experts from the HETEC Expert Committee under the organization of ETRSC. The drafting period lasted 10 months, and the content covers five core chapters, including principles for monitoring sensor deployment, data acquisition and transmission architecture, methods for determining risk warning thresholds, and the coordination mechanism between manual inspection and automatic monitoring.
Unlike traditional guidelines for monitoring a single tunnel, the recommendation particularly emphasizes the "group effect," meaning the mutual influence among adjacent tunnels in geology, seepage, vibration, temperature, and other aspects. In the appendices, the recommendation provides reference monitoring deployment schemes for three typical complex terrains: mountainous areas, coastal areas, and fault-crossing zones. Each scheme includes a specific sensor list and threshold table.
Xu Jianheng, leader of the drafting group and senior expert committee member of HETEC, pointed out in the release note that tunnel group monitoring cannot simply apply the specifications for a single tunnel, because adjacent tunnels form coupling effects during long-term operation, and an abnormality in any one tunnel may affect the safety assessment of the entire tunnel group. The goal of this recommendation is to provide engineering organizations with a systematic starting point for thinking.
The full text of the recommendation is available for download on the HETRA website, and any registered user can obtain it free of charge. Within one week after release, it had been downloaded more than 1,800 times, with more than half of the downloads coming from non-member users. ETRSC stated that it will continue expanding the openness of technical recommendations in the future, so that public industry knowledge can truly circulate within the industry.