| 基于混合单元的三峡库区港口建设场地适宜性评价 |
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| 作者姓名： | 刘月 谭建民 李远耀 李明 谢家龙 刘壮 |
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| 作者单位： | 1.中国地质大学(武汉)地质调查研究院,武汉 430074;2.中国地质调查局武汉地质调查中心,武汉 430205 |
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| 基金项目： | 中国地质调查局“三峡地区万州—宜昌段交通走廊1:5万环境地质调查(编号: DD20160252)”项目资助 |
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| 摘 要： | 长江是我国最大的内陆航运交通要道,三峡大坝建成后,三峡库区长约360 km的河道水位大幅抬升,原航道两岸港口码头均被淹没。在三峡库区现状岸线环境及水库水位动态调蓄条件下,开发拓展新的岸线港口码头的适宜建设区域,具有重要实际意义。基于混合评价单元,选取了地形地貌、区域稳定性、工程地质条件、交通区位条件和生态敏感性5大类因素共14个评价因子,采用改进的综合指数评价模型,对三峡库区宜昌至万州段干流岸线港口建设场地进行了适宜性评价研究。评价结果显示: (1)适宜区占13.81%,较适宜区占25.80%,较不适宜区占31.38%,不适宜区占29.01%; (2)北岸适宜区主要分布在夷陵区乐天溪镇和太平溪镇,云阳县双江镇和万州城区上、下游一带; 南岸适宜区主要分布在秭归县茅坪镇,奉节县城南岸和万州城区南岸上、下游一带。研究评价结果对今后长江宜昌至万州段干流岸线港口资源开发选址具有一定的科技指导意义。
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| 关 键 词： | 贴近摄影测量 高位崩塌 早期识别 结构面 |
| 收稿时间： | 2019-06-11 |
Suitability evaluation of port construction site in Three Gorges Reservoir based on hybrid units |
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| Authors: | LIU Yue TAN Jianmin LI Yuanyao LI Ming XIE Jialong LIU Zhuang |
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| Institution: | 1. Sichuan Geological Survey Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province, Chengdu 610081, China;2. Chengdu Center of China Geological Survey, Chengdu 610081, China |
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| Abstract: | Yangtze River is the largest inland shipping traffic artery in China. After the construction of the Three Gorges Reservoir, about 300 km of river water level in Three Gorges Reservoir rose sharply and the ports and wharves on both sides of the original channel were submerged. Therefore, it is of great practical significance to develop the suitable construction areas for the new ports and wharves under current coastline environment and dynamic water level regulation and storage conditions. Fourteen factors from five categories including topography and geomorphology, regional stability, engineering geological conditions, traffic location conditions and ecological sensitivity were chosen in this paper to evaluate port constructive site suitability on main coastlines from Yichang to Wanzhou section in Three Gorges Reservoir, based on the improved comprehensive index evaluation model. The evaluation results are as follows. (1) The suitable construction area accounts for 13.81% and the less suitable construction area accounts for 25.80%, while the less unsuitable construction area accounts for 31.38% and the unsuitable construction area accounts for 29.01%. (2) The suitable area of northern bank is mainly distributed in the Letianxi town and Taipingxi town of Yiling district, Shuangjiang town of Yunyang county and Wanzhou city district. And the suitable area of southern bank is mainly distributed in Maoping town of Zigui county, the southern bank of Fengjie county, and upstream and downstream in the southern bank of Wanzhou city district. The evaluation results have certain guiding significance for future site selection of port resources development along the main coastlines from Yichang to Wanzhou section. |
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| Keywords: | port hybrid units suitability evaluation Three Gorges Reservoir |
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