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Based on measured data and considering multiple safety aspects such as structural response, durability, and external factors of the diversion tunnel, a TBM diversion tunnel structural health evaluation index system is established. A new method for the TBM diversion tunnel structural health comprehensive evaluation based on Analytic Hierarchy Process-Matter Element Extension-Variable Weight Theory (AMV) is proposed to explore the impact of AMV fluctuation with the measured results of the indicators on the weight, closeness, and health grade of each evaluation index. The high sensitivity and high-risk evaluation indicators for the structural health of the diversion tunnels are identified. It is found that the variable weight varies with the changes in various indicator values, which can accurately evaluate the health status of tunnels in real-time. The characteristic values of the tunnel grade calculated by the AHP and the AMV are 1.589 and 1.695, respectively. The results of the corresponding interval diversion tunnel are the basic safety state of grade B. Except for the two evaluation indicators of concrete strength and slurry properties, the variable weight values and grade characteristic values of other evaluation indicators increase with the increase of indicator values. The four indicators of segment settlement, segment opening, segment misalignment, and segment cracks are more sensitive to the health of the TBM diversion tunnel. This AMV can accurately evaluate the health status of the diversion tunnel structure. The research results can provide references for later maintenance work and similar projects.<\/jats:p>","DOI":"10.3233\/jifs-239155","type":"journal-article","created":{"date-parts":[[2024,4,9]],"date-time":"2024-04-09T10:34:15Z","timestamp":1712658855000},"page":"305-318","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Health assessment of TBM diversion tunnel structure based on AHP and AMV models"],"prefix":"10.1177","volume":"48","author":[{"given":"Jianwei","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ge","family":"Hou","sequence":"additional","affiliation":[{"name":"School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinlin","family":"Huang","sequence":"additional","affiliation":[{"name":"Guangdong Research Institute of Water Resources and Hydropower, Guangzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yong","family":"Wang","sequence":"additional","affiliation":[{"name":"Pearl River Water Resources Research Institute, Pearl River Water Resources Commission Guangzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2024,4,6]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclepro.2021.126689"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tust.2022.104830"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tust.2022.104654"},{"key":"e_1_3_2_5_2","doi-asserted-by":"crossref","unstructured":"ChenL.L. 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