Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System
The combination of Global Positioning System-Real Time Kinematic (GPS-RTK) and depth sounder is an important technical method of modern underwater topographic survey. In this paper, the combined technology was integrated with unmanned surface vehicle (USV) technology to construct an unmanned survey...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5514165 |
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| author | Hui Xie Haoran Wang Yayi Yang Yongcan Chen Jun Yang Shuang Wang Zhaowei Liu |
| author_facet | Hui Xie Haoran Wang Yayi Yang Yongcan Chen Jun Yang Shuang Wang Zhaowei Liu |
| author_sort | Hui Xie |
| collection | DOAJ |
| description | The combination of Global Positioning System-Real Time Kinematic (GPS-RTK) and depth sounder is an important technical method of modern underwater topographic survey. In this paper, the combined technology was integrated with unmanned surface vehicle (USV) technology to construct an unmanned survey system suitable for underwater topographic survey in stilling basin, and it was applied to survey the underwater topography of the stilling basin of Tingzikou hydrojunction project. Based on the surveying and mapping data and 3D model, the trend of elevation change of the stilling basin including apron, end sill, antiscour section, and river convergence section was analyzed. The results show that, for the surface outlet stilling basin of Tingzikou, after flood, the structure is complete, the boundaries are clear, the water quality is good, and there is little sediment on the surface of apron from overflow dam section to end sill. Furthermore, no obvious sediment or structural abnormality has been found in the still basin. Affected by the bedrock and cofferdam cobble gravel sediment, the elevation of the antiscour section and the downstream convergence section of the surface outlet stilling basin increased significantly. For the bottom outlet stilling basin of Tingzikou, there is large sediment within a range of 20 m∼40 m from the bottom sill and the maximum height of it reaches 2.04 m, while there is no obvious sediment or structural abnormality in the remaining region of basin. The critical sedimentation height can effectively judge the safety grade of the sedimentation height in stilling basin and provide a reliable support for assessing the overall safety of stilling basin. The application of unmanned survey technology improves the accuracy and timeliness of underwater topography and sedimentation distribution of stilling basin, which has significant application research value and promotion significance. |
| format | Article |
| id | doaj-art-9a2f2f510f8840f5a7ec3966bc5d2f1b |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-9a2f2f510f8840f5a7ec3966bc5d2f1b2025-02-03T01:00:14ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/55141655514165Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey SystemHui Xie0Haoran Wang1Yayi Yang2Yongcan Chen3Jun Yang4Shuang Wang5Zhaowei Liu6Sichuan Energy Internet Research Institute, Tsinghua University, Chengdu 610042, ChinaSichuan Energy Internet Research Institute, Tsinghua University, Chengdu 610042, ChinaSichuan Technology and Business College, Dujiangyan 611830, ChinaState Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaSichuan Electic Power Design & Consulting Co., Ltd., Chengdu 610041, ChinaSouthwest University of Science and Technology, Mianyang 621010, ChinaState Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaThe combination of Global Positioning System-Real Time Kinematic (GPS-RTK) and depth sounder is an important technical method of modern underwater topographic survey. In this paper, the combined technology was integrated with unmanned surface vehicle (USV) technology to construct an unmanned survey system suitable for underwater topographic survey in stilling basin, and it was applied to survey the underwater topography of the stilling basin of Tingzikou hydrojunction project. Based on the surveying and mapping data and 3D model, the trend of elevation change of the stilling basin including apron, end sill, antiscour section, and river convergence section was analyzed. The results show that, for the surface outlet stilling basin of Tingzikou, after flood, the structure is complete, the boundaries are clear, the water quality is good, and there is little sediment on the surface of apron from overflow dam section to end sill. Furthermore, no obvious sediment or structural abnormality has been found in the still basin. Affected by the bedrock and cofferdam cobble gravel sediment, the elevation of the antiscour section and the downstream convergence section of the surface outlet stilling basin increased significantly. For the bottom outlet stilling basin of Tingzikou, there is large sediment within a range of 20 m∼40 m from the bottom sill and the maximum height of it reaches 2.04 m, while there is no obvious sediment or structural abnormality in the remaining region of basin. The critical sedimentation height can effectively judge the safety grade of the sedimentation height in stilling basin and provide a reliable support for assessing the overall safety of stilling basin. The application of unmanned survey technology improves the accuracy and timeliness of underwater topography and sedimentation distribution of stilling basin, which has significant application research value and promotion significance.http://dx.doi.org/10.1155/2021/5514165 |
| spellingShingle | Hui Xie Haoran Wang Yayi Yang Yongcan Chen Jun Yang Shuang Wang Zhaowei Liu Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System Advances in Materials Science and Engineering |
| title | Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System |
| title_full | Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System |
| title_fullStr | Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System |
| title_full_unstemmed | Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System |
| title_short | Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System |
| title_sort | analysis of underwater topographic survey of stilling basin based on unmanned survey system |
| url | http://dx.doi.org/10.1155/2021/5514165 |
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