论文部分内容阅读
该文以丰满水电站大坝渗漏为背景,阐述了适于混凝土大坝渗漏示踪探测的若干示踪量,如漏水量、温度、电导率、pH值、垂向流和水平流向等及其示踪意义。大坝以坝身渗漏为主,结合实测的漏水量、温度、电导率和pH值,分析了坝体渗漏和接缝(横缝)渗漏的渗漏模式,有高(低)位单缝直接快速式渗透、高位多缝慢速渗透、低位单缝慢速渗透、高位单缝直接慢速渗透。得出了大坝227m高程以下是目前渗漏的主要部位的结论,提出了利用实测温度场的变化来分析大坝上游面可能的入渗口位置的观点。该观点在理论上是成立的,但在实践上还需要进一步验证。
Based on the dam seepage in Fengman Hydropower Station, this paper describes some tracer quantities suitable for seepage tracing detection of concrete dams, such as water leakage, temperature, conductivity, pH, vertical flow and horizontal flow, etc. Its tracing significance. The dam is dominated by dam seepage. Combined with the measured water leakage, temperature, conductivity and pH value, the seepage modes of seepage and joint (transverse joint) leakage are analyzed. There are high (low) Single-slot direct rapid infiltration, high multi-slot slow penetration, low single-slot slow penetration, high single-slot direct slow penetration. The conclusion is drawn that below 227m elevation of the dam is the main part of the current leakage, the viewpoint of using the measured temperature field to analyze the possible infiltration port location on the upstream face of the dam is proposed. This view is theoretically established, but in practice still needs further verification.