The Automatic Monitoring Method And The Device Of Reservoir Dam Water Level

Dam engineering is an important infrastructure, good condition plays a very important social and economic benefits. Effective test dam seepage parameters, is an important index for judging dam health. Grasp the characteristics of infiltration inside the dam body of understanding and analysis of dam seepage law, hidden rule out important role in the evolution and predict disease.Currently, about exist within the dam water level measurement method and equipment installation procedure complex, sensor is out of order, test data error is bigger, and many other shortcomings, at the same time, most of the instruments can’t satisfy water level automatic real-time measurement and data inside the dam infiltration characteristics of long-term dynamic monitoring requirements.Papers on the analysis of the existing dam monitoring method based on the seepage characteristics, put forward by applying the method of parallel electric multi-parameter comprehensive analysis technology, focus on indoor homogeneous model within the infiltration characteristics of sand dam monitoring work. Through the whole series of test process, get the following understanding:(1) Stability test instrument. Using parallel observation system of outdoor electrical method model hole to detect electrical parameters, through different sampling modes of exciting current data and comparative analysis, a potential field data validation parallel electrical method system for the dam water level detection accuracy.(2) Parallel diction dam monitoring the physical properties of the method. Indoor sand of different moisture content, rich water under different concentrations of tap water and the same concentration degree of different sandy soil resistivity test experiment, the experiment shows that the sand electric parameters affected by the moisture content of sand medium and ion concentration are governed by such factors as both changed the geoelectric parameters of sand.(3) Parallel electrical method of continuous monitoring effectiveness. Using the method of parallel electric testing system for static nature under the condition of wet sand to carry on the long-term monitoring, using multiple parameters in sand moisture to reduce the degree of internal evaluation and dynamic process of drying, obtain good effect. The results show that the subject has opted to use parallel electrical method to implement the correctness of the direction of dam water level monitoring.(4) Internal seepage ground electric field dynamic response characteristics of motion process monitoring test. By building a dam foundation and dam body seepage dam water level caused by two kinds of diseases, using the method of parallel electric technology real-time observation of the geoelectric parameters of response characteristics, parameter validation and complement each other, more prove effective feasibility of the technology.Paper finally summary and thinking of full text, through a large number of experimental results validate the parallel electrical method system of multi-parameter comprehensive evaluation method of automatic change the feasibility of the long-term monitoring dam seepage characteristics, the technology can be used on the real evolution of internal hidden trouble detection and seepage monitoring.