摘要
QMS水电站工程为引水式电站,具有水头低,流量大的特点,为形成有效的发电水头,在引水渠道末端设置压力前池,压力前池基础为砂砾石换填基础,前池在运行时出现渗水情况,前池基础一旦出现渗流破坏,将造成严重的后果,本文根据压力前池实际建设情况,采用有限元计算方法,对压力前池稳定及渗流进行了计算分析,评价结果认为,建筑物产生破坏和失稳的可能性不大,工程是安全的,但应引起足够重视,及时处理前池变形和渗漏问题。
QMS Hydropower Station is a diversion power station with the characteristics of low water head and large flow. In order to form effective power generation head, a pressure forebay is designed at the end of the diversion channel. The foundation of the pressure forebay is sand gravel replacement foundation. The forebay has water seepage during operation. Once the forebay foundation is damaged by seepage, the consequences will be serious. According to the actual construction situation of the pressure forebay, the stability and seepage of the pressure forebay were calculated and analyzed by finite element calculation method. According to the calculation results, it is evaluated that there is little possibility of building damage and instability and the engineering is safe, but the deformation and leakage problem of forebay shall be dealt with in time.
作者
赵姗姗
ZHAO Shan-shan(Xinjiang Water Conservancy and Hydropower Survey,Design and Research Institute Co.,Ltd.,Urumqi 830000,China)
出处
《广西水利水电》
2022年第2期73-76,共4页
Guangxi Water Resources & Hydropower Engineering
关键词
压力前池
沉降渗流计算
有限元法
处理措施
Pressure forebay
settlement and seepage calculation
finite element method
treatment measure
