摘要
渗流监测是大坝日常安垒监测的一项重要内容,以希尼尔水库西副坝段的放水涵洞断面为研究对象,对其进行渗流分析,结果表明:大坝放水建筑物基础透水性较强,在高库水位时坝基渗压水位较高,渗透压力及渗流位势均较大,但渗流位势变化基本正常,坝基水平渗透坡降小于允许值,自水库下闸蓄水以来,放水建筑物与西副坝接触部位渗流运行性态正常,未发生明显渗流异常现象。建议加强放水建筑物的巡视检查与安全监测,发现问题,及时处理。
Seepage monitoring is an important content of routine dam safety instrumentation, this paper takes Xi＇ni＇er water release culvert section as the research object to analyze dam seepage. The analysis results show that the permeability of the dana water release structure foundation is high; when the reservoir level is high, the dam foundation seepage pressure water level is high and both seepage pressure and seepage potential are high, however the change of seepage potential is normal in general; the dam foundation seepage gradient is less than the allowable value; since impoundment of the reservoir, the seepage condition of the location where the water release structure is in contact with the western auxiliary dam has found. The paper proposes to strengthen inspection and necessary. been normal and no remarkable abnormal seepage was safety monitoring and to settle the problems timely if
出处
《云南水力发电》
2017年第1期49-51,共3页
Yunnan Water Power
关键词
土石坝
渗流分析
放水涵洞
希尼尔水库
earth-rock dam
seepage analysis
water release culvert
Xi＇ni＇er reservoir
