Project plan and research progress on key technologies of seismic zoning in sea areas
China is located between the circum-Pacific seismic belt and the Mediterranean-Himalayan seismic belt, the tectonic activity in both the land and sea areas is very strong. With the continuous and rapid development of coastal economy, especially the strategic conception of “21st Century Maritime Silk...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Progress in Earthquake Sciences
2020-01-01
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| Series: | 地震科学进展 |
| Subjects: | |
| Online Access: | https://www.gjdzdt.cn/en/article/doi/10.3969/j.issn.2096-7780.2020.01.001 |
| _version_ | 1827978248513912832 |
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| author | Xiaojun Li Su Chen Zhikun Ren Yuejun Lü Huawei Tong Zengping Wen |
| author_facet | Xiaojun Li Su Chen Zhikun Ren Yuejun Lü Huawei Tong Zengping Wen |
| author_sort | Xiaojun Li |
| collection | DOAJ |
| description | China is located between the circum-Pacific seismic belt and the Mediterranean-Himalayan seismic belt, the tectonic activity in both the land and sea areas is very strong. With the continuous and rapid development of coastal economy, especially the strategic conception of “21st Century Maritime Silk Road” proposed, the seismic fortification of coastal, offshore and marine engineering has become an issue of concern in the field of earthquake science. Therefore, it is urgent to carry out seismic zoning in sea areas to provide the basis for seismic fortification. The project of the “Research on key technologies of seismic zoning in sea areas” supported by the National Key R&D Program of China (2017YFC1500400), takes the basic principles, scientific issues and key technologies of seismic zoning in sea areas as its research objectives, puts forward the principles for the compilation of China seismic zoning map in sea areas, forms zoning methods and technical system, and then provides technical support for the compilation of seismic zoning map of China in sea areas through the demonstration and application of seismic zoning in typical sea areas. After two years of project research, the active tectonic framework maps of the eastern and southern seas of China and seismic tectonic maps of three typical sea areas (located in the Yellow Sea, Taiwan Strait and South China Sea) were compiled, and seismic models of subduction zones in China sea and adjacent areas were obtained; A unified seismic catalogue of China sea and adjacent areas was established, and the seismicity scheme and parameters of offshore seismic zones of the continental shelf of China were given; The differences of strong motion characteristics in land sites and seabed sites and from inland earthquakes and subduction earthquakes are statistically analyzed, and a scheme for the establishment of seismic ground motion attenuation model was proposed based on observation records and seismic simulation results of ground motion; Models of seabed topographies and seabed sites in China sea and adjacent areas were established, and a preliminary seismic ground motion adjustment method for the effect of sea site was given; The seismic response analyses for the structures of the marine engineerings, such as offshore wind powers, bridges and submarine pipelines, and the coral islands were carried out respectively, and the sensitivity of the seismic response of marine engineering structures and coral islands to different seismic ground motion parameters were given; the division scheme of seismic belts and potential source zones in the typical demonstration areas were proposed, and the principle and method of seismic zoning in sea areas were formed, and design of the technical framework of seismic zoning in sea areas was completed. |
| first_indexed | 2024-04-09T21:17:55Z |
| format | Article |
| id | doaj.art-f01d29f64a614d19a551203a2386de4c |
| institution | Directory Open Access Journal |
| issn | 2096-7780 |
| language | zho |
| last_indexed | 2024-04-09T21:17:55Z |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Progress in Earthquake Sciences |
| record_format | Article |
| series | 地震科学进展 |
| spelling | doaj.art-f01d29f64a614d19a551203a2386de4c2023-03-28T07:00:31ZzhoEditorial Office of Progress in Earthquake Sciences地震科学进展2096-77802020-01-0150121910.3969/j.issn.2096-7780.2020.01.001lixiaojunProject plan and research progress on key technologies of seismic zoning in sea areasXiaojun Li0Su Chen1Zhikun Ren2Yuejun Lü3Huawei Tong4Zengping Wen5Institute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaInstitute of Geology, China Earthquake Administration, Beijing 100029, ChinaInstitute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, ChinaCollege of Civil Engineering, Guangzhou University, Guangzhou 510006, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaChina is located between the circum-Pacific seismic belt and the Mediterranean-Himalayan seismic belt, the tectonic activity in both the land and sea areas is very strong. With the continuous and rapid development of coastal economy, especially the strategic conception of “21st Century Maritime Silk Road” proposed, the seismic fortification of coastal, offshore and marine engineering has become an issue of concern in the field of earthquake science. Therefore, it is urgent to carry out seismic zoning in sea areas to provide the basis for seismic fortification. The project of the “Research on key technologies of seismic zoning in sea areas” supported by the National Key R&D Program of China (2017YFC1500400), takes the basic principles, scientific issues and key technologies of seismic zoning in sea areas as its research objectives, puts forward the principles for the compilation of China seismic zoning map in sea areas, forms zoning methods and technical system, and then provides technical support for the compilation of seismic zoning map of China in sea areas through the demonstration and application of seismic zoning in typical sea areas. After two years of project research, the active tectonic framework maps of the eastern and southern seas of China and seismic tectonic maps of three typical sea areas (located in the Yellow Sea, Taiwan Strait and South China Sea) were compiled, and seismic models of subduction zones in China sea and adjacent areas were obtained; A unified seismic catalogue of China sea and adjacent areas was established, and the seismicity scheme and parameters of offshore seismic zones of the continental shelf of China were given; The differences of strong motion characteristics in land sites and seabed sites and from inland earthquakes and subduction earthquakes are statistically analyzed, and a scheme for the establishment of seismic ground motion attenuation model was proposed based on observation records and seismic simulation results of ground motion; Models of seabed topographies and seabed sites in China sea and adjacent areas were established, and a preliminary seismic ground motion adjustment method for the effect of sea site was given; The seismic response analyses for the structures of the marine engineerings, such as offshore wind powers, bridges and submarine pipelines, and the coral islands were carried out respectively, and the sensitivity of the seismic response of marine engineering structures and coral islands to different seismic ground motion parameters were given; the division scheme of seismic belts and potential source zones in the typical demonstration areas were proposed, and the principle and method of seismic zoning in sea areas were formed, and design of the technical framework of seismic zoning in sea areas was completed.https://www.gjdzdt.cn/en/article/doi/10.3969/j.issn.2096-7780.2020.01.001seismic zoning in sea areasseismic tectonic modelsubduction zoneseismicitypotential seismic source zoneground motion attenuationsite conditionmarine engineering |
| spellingShingle | Xiaojun Li Su Chen Zhikun Ren Yuejun Lü Huawei Tong Zengping Wen Project plan and research progress on key technologies of seismic zoning in sea areas 地震科学进展 seismic zoning in sea areas seismic tectonic model subduction zone seismicity potential seismic source zone ground motion attenuation site condition marine engineering |
| title | Project plan and research progress on key technologies of seismic zoning in sea areas |
| title_full | Project plan and research progress on key technologies of seismic zoning in sea areas |
| title_fullStr | Project plan and research progress on key technologies of seismic zoning in sea areas |
| title_full_unstemmed | Project plan and research progress on key technologies of seismic zoning in sea areas |
| title_short | Project plan and research progress on key technologies of seismic zoning in sea areas |
| title_sort | project plan and research progress on key technologies of seismic zoning in sea areas |
| topic | seismic zoning in sea areas seismic tectonic model subduction zone seismicity potential seismic source zone ground motion attenuation site condition marine engineering |
| url | https://www.gjdzdt.cn/en/article/doi/10.3969/j.issn.2096-7780.2020.01.001 |
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