c)长期监测(Monitoring of Change through Time):从旅游活动开端阶段作长期调查，剖析运用强度逐年增加所惹起的改动。或在游客压力突增时，随时作短期调查。
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中国土木工程学报 关键词：混凝土结构；预应力；温度作用；长期监测 [gap=1194]Keywords: concrete structure；prestressing；temperature effects；long-term monitor
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To the problems in long-term monitoring of concrete stress, the numerical simulation for concrete creep effect of the main girder segment of Wenhui Bridge was made; accordingly a method that can approximately separate the creep strain was put forward.
针对目前混凝土应力长期监测中存在的问题，对文晖大桥主梁节段进行了徐变效应的数值模拟分析，并提出了近似的徐变应变分离方法。
参考来源 - 文晖大桥健康监测评估系统的研究与开发This major study is the usage of data mining technology to analyze bridge monitoring data and deal with a large amount of data that bridge-monitoring system collects in long-term monitoring stage.
本文主要研究了采用数据挖掘技术对桥梁监测数据进行分析的方法,处理桥梁长期监测中所产生采集大量数据。
参考来源 - 桥梁健康监测数据的数据挖掘模型·2,447,543篇论文数据，部分数据来源于NoteExpress
经长期监测，揭示出了坝体的位移规律。
The displacement regularity have been pointed out through long-time observing.
特别是病害的发生如叶枯萎需要长期监测。
In particular, the buildup of diseases, such as leaf blights need to be monitored over time.
这也与瑞典正在进行的长期监测研究得出的经验一致。
This agrees well with the experience gained from the ongoing long term monitoring research in Sweden.
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