| 山丘区输变电工程侵蚀环境及水土流失特征 |
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| 引用本文： | 聂慧莹,冯华,王文龙,丰佳,潘明九,伍欢.山丘区输变电工程侵蚀环境及水土流失特征[J].水土保持研究,2022,29(2):50-56. |
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| 作者姓名： | 聂慧莹 冯华 王文龙 丰佳 潘明九 伍欢 |
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| 作者单位： | (1.中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100; 2.国家电网浙江省电力有限公司, 杭州 310007; 3.国家电网浙江省电力有限公司经济技术研究院, 杭州 310020; 4.中国电力工程顾问集团西北电力设计院有限公司, 西安 710075) |
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| 基金项目： | 国家电网总部科技项目“山丘区架空输电线路工程水土保持设计施工关键技术研究”(8100-202019156A-0-0-00)。 |
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| 摘 要： | 输变电工程在施工过程中扰动地面,造成土壤侵蚀,而山丘区自然条件复杂水土流失尤为严重。为明确山丘区水土流失特征,以山丘区输变电工程为研究对象,通过资料收集整理与实地勘测,探讨了其侵蚀环境、不同建设阶段、不同侵蚀单元水土流失特征及其影响因素。结果表明:在侵蚀动力系统中,输变电工程以人为扰动为主,塔基区和站区、施工道路及弃土(渣)场是输变电工程的主要侵蚀单元; 施工期的水土流失量可达自然恢复期的1.3～16.1倍,施工期的侵蚀模数是自然恢复期的1.5～25.3倍; 站区和塔基区施工期的水土流失量占比均高于其他侵蚀单元,山丘区土壤侵蚀模数均大于平原区域,是平原区的1.2～1.9倍; 在众多建设区域中以变电站建设、塔基开挖、线路施工临时道路为重点,着重山丘区输变电工程水土流失的防治。山丘区输变电工程不同建设期、不同侵蚀单元水土流失特征差异显著,进行水土保持措施配置时应工程措施、植物措施、临时措施有机结合。
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| 关 键 词： | 输变电工程 侵蚀单元 侵蚀环境 水土流失 水土保持 |
Characteristics of Erosion Environment and Soil and Water Losses Induced by Power Transmission and Transformation Project in Hilly Area |
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| NIE Huiying,FENG Hua,WANG Wenlong,FENG Jia,PAN Mingjiu,WU Huan.Characteristics of Erosion Environment and Soil and Water Losses Induced by Power Transmission and Transformation Project in Hilly Area[J].Research of Soil and Water Conservation,2022,29(2):50-56. |
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| Authors: | NIE Huiying FENG Hua WANG Wenlong FENG Jia PAN Mingjiu WU Huan |
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| Affiliation: | (1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources, Yangling, Shaanxi712100,China; 2.State Grid Zhejiang Power Co., Ltd., Hangzhou310007,China; 3.Economic Research Institute, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou310020,China; 4.Northwest Electric Power Design Institute Co., Ltd., of China Power Engineering Consulting Group, Xi'an,710075,China) |
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| Abstract: | The power transmission and transformation project disturbs the ground and causes soil erosion during the construction process,and the soil and water losses under the complex natural conditions in the hilly area are particularly serious.In order to clarify the characteristics of soil and water loss in hilly areas,we took the power transmission and transformation project in hilly areas as the research object,and discussed soil and water loss characteristics and influencing factors in its erosion environment,different construction stages and different erosion units through data collection and field survey.The results show that:in the erosion dynamic system,the power transmission and transformation projects are mainly man-made disturbances;the tower base area and the station area,construction roads and spoil(slag)yards are the main erosion units of the power transmission and transformation projects;the amount of soil and water loss during the construction period can reach 1.3~16.1 times of that in the natural recovery period,the erosion modulus during the construction period is 1.5~25.3 times of that in the natural recovery period;the proportion of soil and water loss during the construction period of the station area and tower base area is higher than that of other erosion units,and the soil erosion modulus in the hilly area is greater than the plain area,and is 1.2~1.9 times of that in the plain area.In many construction areas,the focus is on substation construction,tower foundation excavation,and temporary roads for line construction.The emphasis is on the prevention and control of soil and water loss in power transmission and transformation projects in hilly areas,and soil and water conservation projects.The characteristics of soil and water loss in different construction periods and different erosion units of power transmission and transformation projects in hilly areas are obviously different.The allocation of soil and water conservation measures should be organically combined with engineering measures,plant measures and temporary measures. |
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| Keywords: | transmission and transformation line project erosion unit erosion environment soil and water loss soil and water conservation |
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