Measurement Technology Based On The Resistance Matrix Positioning For Dam-break Model Test

In this paper, through the investigation and analysis of domestic and foreign research status of the dam, combined with the current several methods used in main dam of physical model in the domestic advantages and disadvantages, according to the current dam measurement equipment and the experimental study on the demand gap, puts forward a new type of measurement method-- a new dam measurement device design the principle of resistance matrix.Based on the resistance matrix function, design and development of a set of can be installed on the outside of the measurement model of dam break measuring device, investigation and analysis in order to meet the water, underwater connector, resistance network design aspects of development is the design of this device, the following results have been achieved:(1) in order to satisfy the reliability of immersion, resistance measurement matrix in breach erosion under the conditions of the research at home and abroad, the main waterproof insulation material and material loss in the work environment, the maintenance method of optimal selection and loss detection of waterproof material.(2) through the investigation and study the principle structure of the existing underwater electrical equipment connector, combined with their own resistance equipment function, innovative design and resistance matrix in single resistor unit connected to each other at the meeting on the conductive connection-- casing, screw on the top connection structure off the insulation state. The connection structure, the spiral casing protection on the top link connecting the electrical insulation design innovation, the real implementation of the resistance matrix is used to measure the utility function of the dam.(3) according to the equipment on the dam test continuous improvement design of waterproof, disconnect the resistance matrix of the highest efficiency of permutation and combination, to meet the measurement equipment in the earth rock dam model for dam body material with fine particles gradually collapse, erosion resistance element can not be firmly arranged on the dam surface and not reliable in outburst. Be washed from the matrix of network problems, and through the design of the hydraulic calculation condition of resistance element hydraulic compensation water retaining piece.(4) equipment reliability testing experiment of earth rock dam break through the physical model, the process of data and the actual situation of burst measurement circuit check, to complete the function of the equipment, the accuracy of the test equipment can be used successfully for measuring the burst process of dam break model.