摘要
根据那吉航运枢纽工程勘测、设计、施工、安全鉴定等资料,结合蓄水初期运行表现、测压管安装钻孔揭露的地质情况及9只渗压计监测资料,对枢纽工程岸坡绕渗情况进行了初步分析.分析结论认为：左岸水力比降在规范允许值范围,渗透稳定安全;右岸PR3 ～ PR4测点间水力比降偏大,约达0.22 ～ 0.23,建议加强相应测点水位监测及排水检查,必要时延长右岸防渗渗径长度.
According to the investigation, design, construction, safety identification data of the Naji Shipping hub, Combined with the initial operation performance of retaining water, the geological condition revealed by the drillings installing the pressure pipe and the monitoring data of 9 piezometers, there was a preliminary analysis for the bypass seepage condition. The analysis showed that the hydraulic gradient of the left side bank was in allowed range and its seepage stability was safe,but the hydraulic gradient of between the measure points of PR3 and PR4 in the right side bank was slightly larger and about 0. 22 ~ 0. 23, and so it was suggested that the corresponding measuring point level monitoring and drainage inspection should be enhanced and when necessary, the seepage path length of the right bank should be extended.
出处
《人民珠江》
2013年第6期74-76,共3页
Pearl River
关键词
绕坝渗流
监测资料分析
那吉航运枢纽
Naji Shipping hub
bypass seepage
monitoring data analysis
