某水电站左岸边坡泄洪雾化防护措施比选  

Comparison and selection of protection schemes for left-bank slope at a hydropower station during flood discharge atomization

作　　者：王劲[1] 罗玉龙[1] 殷亮[2] 詹美礼[1] 盛金昌[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]中国水电顾问集团华东勘测设计研究院,浙江杭州310014

出　　处：《河海大学学报（自然科学版）》2014年第6期553-558,共6页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(51009053);高等学校博士学科点专项科研基金(20100094120004)

摘　　要：根据泄洪雾化范围的估算式,参照二滩电站等重大水电工程设计所采用的雾化范围,确定所研究水电站的泄洪雾化范围;结合电站的主要结构面性质,确定其左岸下游潜在的滑坡体。基于考虑泄洪雾化作用的饱和-非饱和非稳定渗流理论,研究了左岸下游边坡潜在滑坡体周界上的扬压力随泄洪雾化过程的演变规律,在设计防护方案的基础上提出3种防护比较方案,通过对不同方案的防护效果比较,最终确定了最优的泄洪雾化防护方案。According to the estimation formula of flood discharge atomization, and with reference to the atomization range of major hydropower engineering projects such as the Ertan Hydropower Station, we determined the range of the flood discharge atomization of the chosen hydropower station. Based on the main properties of the structural plane of the hydropower station, we determined the potential landslide downstream the left bank of the station. Based on saturated and unsaturated unstable seepage theory, and with consideration of the function of flood discharge atomization, we analyzed the evolution of the uplift pressure on the structural surfaces of the potential landslide, and we propose three protection schemes based on the design scheme. Through comparison of the effects of the three schemes, we have selected the optimum scheme.

关 键 词：泄洪雾化 边坡稳定 非饱和渗流 扬压力 防护措施 梯级水电站 

分 类 号：TV139.1[水利工程—水力学及河流动力学]