Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network
Scientific development and utilization of urban underground space is an inevitable choice for sustainable urban development. However, in the previous suitability evaluation of underground space in coastal cities, the development potential of underground space in the sea area is not considered. There...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-10-01
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| Series: | Underground Space |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2467967425000601 |
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| author | Xinyu Liu Hongjun Liu Jie Dong Peng Yu Honghua Liu Guanghua Cheng |
| author_facet | Xinyu Liu Hongjun Liu Jie Dong Peng Yu Honghua Liu Guanghua Cheng |
| author_sort | Xinyu Liu |
| collection | DOAJ |
| description | Scientific development and utilization of urban underground space is an inevitable choice for sustainable urban development. However, in the previous suitability evaluation of underground space in coastal cities, the development potential of underground space in the sea area is not considered. Therefore, this study takes the coastal zone of Jiaozhou bay as the study area, establishes evaluation index systems for land and sea areas separately, and explores a new model for evaluating the suitability of underground space in coastal cities by integrating land and sea. In addition, an underground space suitability evaluation model based on the integration of Pythagorean fuzzy sets and Bayesian network is proposed. Firstly, the Pythagorean triangular fuzzy numbers are used to expand the fuzzy range of expert opinions. Then the Pythagorean triangular fuzzy hybrid geometric operator is used to realize the aggregation of expert opinions to solve the difficulty of obtaining the node conditional probability table by the traditional Bayesian network model of underground space suitability evaluation. Finally, the Pythagorean fuzzy Bayesian network is used as an evaluation tool to carry out the underground space suitability evaluation. Based on the evaluation result and urban planning, the overall planning and functional zoning guidelines for underground space development in the study area are given and the suitability and engineering construction difficulty analysis on the second subsea tunnel of Jiaozhou bay is conducted. The research results can provide a valuable reference for the coastal city planning department to develop and utilize underground space. |
| format | Article |
| id | doaj-art-b7433483b51e453283e08d7e8476d04a |
| institution | Kabale University |
| issn | 2467-9674 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Underground Space |
| spelling | doaj-art-b7433483b51e453283e08d7e8476d04a2025-08-20T03:59:22ZengKeAi Communications Co., Ltd.Underground Space2467-96742025-10-012419721510.1016/j.undsp.2025.04.004Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian networkXinyu Liu0Hongjun Liu1Jie Dong2Peng Yu3Honghua Liu4Guanghua Cheng5Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China; Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, ChinaKey Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, ChinaKey Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, ChinaKey Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China; Key Laboratory of Coupling Process and Effect of Natural Resources Elements, Beijing 100055, China; Key Laboratory of Geological Disaster Risk Prevention and Control of Shandong Provincial Emergency Management Department, Jinan 250014, China; Corresponding author at: Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China.Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, ChinaKey Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, ChinaScientific development and utilization of urban underground space is an inevitable choice for sustainable urban development. However, in the previous suitability evaluation of underground space in coastal cities, the development potential of underground space in the sea area is not considered. Therefore, this study takes the coastal zone of Jiaozhou bay as the study area, establishes evaluation index systems for land and sea areas separately, and explores a new model for evaluating the suitability of underground space in coastal cities by integrating land and sea. In addition, an underground space suitability evaluation model based on the integration of Pythagorean fuzzy sets and Bayesian network is proposed. Firstly, the Pythagorean triangular fuzzy numbers are used to expand the fuzzy range of expert opinions. Then the Pythagorean triangular fuzzy hybrid geometric operator is used to realize the aggregation of expert opinions to solve the difficulty of obtaining the node conditional probability table by the traditional Bayesian network model of underground space suitability evaluation. Finally, the Pythagorean fuzzy Bayesian network is used as an evaluation tool to carry out the underground space suitability evaluation. Based on the evaluation result and urban planning, the overall planning and functional zoning guidelines for underground space development in the study area are given and the suitability and engineering construction difficulty analysis on the second subsea tunnel of Jiaozhou bay is conducted. The research results can provide a valuable reference for the coastal city planning department to develop and utilize underground space.http://www.sciencedirect.com/science/article/pii/S2467967425000601Underground spaceLand-sea integrationPythagorean fuzzy setsSuitability evaluationBayesian network model |
| spellingShingle | Xinyu Liu Hongjun Liu Jie Dong Peng Yu Honghua Liu Guanghua Cheng Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network Underground Space Underground space Land-sea integration Pythagorean fuzzy sets Suitability evaluation Bayesian network model |
| title | Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network |
| title_full | Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network |
| title_fullStr | Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network |
| title_full_unstemmed | Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network |
| title_short | Land-sea integrated suitability evaluation of underground space based on Pythagorean fuzzy Bayesian network |
| title_sort | land sea integrated suitability evaluation of underground space based on pythagorean fuzzy bayesian network |
| topic | Underground space Land-sea integration Pythagorean fuzzy sets Suitability evaluation Bayesian network model |
| url | http://www.sciencedirect.com/science/article/pii/S2467967425000601 |
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