大型水电站建设中弃渣场水土流失动态研究  

Dynamic Study on Soil Erosion of Waste Slag Dump during Construction of Large Hydropower Station

作　　者：张仕艳 原海红[2] 岳奎 Zhang Shiyan;Yuan Haihong;Yuekui(Yunnan Xiuchuan Environmental Engineering Technology Co. , Ltd. 2. Kunming Engineering ＆ Research Institution of Nonferrous Metallurgy Co. , Kunming 650021, China;Ltd. , Kunming 650051, Chin)

机构地区：[1]云南秀川环境工程技术有限公司,云南昆明650021 [2]昆明有色冶金设计研究院股份公司,云南昆明650051

出　　处：《有色金属设计》2018年第2期120-125,共6页Nonferrous Metals Design

摘　　要：以金沙江干流上建设的金安桥水电站为例,阐述了大型水电站工程建设期内弃渣场水土流失量的动态变化。结果表明:汛期降雨量占年降雨量的92.9%以上,汛期是土壤流失发生的主要时段。受建设内容、施工时段、施工进度和降雨量的影响,弃渣场水土流失量变化趋势不同。弃渣场松散堆积物流失量呈现"较小→增大→减小"的趋势,2004年施工开始,2006年达到峰值,弃渣场是水土流失的敏感部位和重点部位。Taking Jinanqiao hydropower station on the main stream of the Jinsha River as an example, the dynamic change of soil erosion of waste slag dump during the construction of large hydropower station was introduced. Results show that the rainfall in flood season accounts for more than 92. 9% of annual rainfall and thus soil erosion mainly occurs in flood season. Affected by construction content, time, schedule and rainfall, the variation trend of soil erosion of waste slag dump is different. The rickle loss in waste slag dump shows the trend of being small→ increasing→descreasing, and from construction starting in 2004, it reached the peak in 2006. The waste slag dump is a sensitive and key location concerning soil erosion.

关 键 词：水电站工程 弃渣场 水土流失动态 

分 类 号：S157.2[农业科学—土壤学]