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坝基扬压力是影响大坝稳定的主要荷载之一,是大坝安全监控的一项重要指标.目前国内多采用数理统计、类比及化学分析等方法进行综合计算分析,其精度难以进一步提高.由于坝基地貌地质比较复杂,上下游水位差变化等诸因素都对坝基扬压力产生影响.目前大坝的扬压力的测试,均采用人工测读的方法,其测试手段落后,劳动强度大,精度低,难于满足工程的需要.
The dam foundation uplift pressure is one of the main loads that affect the stability of the dam and is an important indicator of dam safety monitoring.At present, the comprehensive calculation and analysis using mathematical statistics, analogies and chemical analysis methods are difficult to further improve the accuracy of the dam. The geomorphology and geology of the dam foundation are complex, and the variation of the water level difference between the upper and lower reaches has an impact on the uplift pressure of the dam foundation. At present, the test of the uplift pressure of the dam adopts the method of manual measurement, which lags behind the test methods, has large labor intensity and low accuracy , Difficult to meet the needs of the project.