Dike hidden danger time-shift electric method detection system
A technology of electrical detection and electrical measurement, applied in radio wave measurement systems, signal transmission systems, electrical/magnetic exploration, etc., can solve problems such as inability to accurately locate hidden dangers and timely early warning, insufficient precision, and low efficiency of hidden danger detection , to achieve the effects of improving measurement efficiency, reducing power supply times, and reducing measurement time
Inactive Publication Date: 2018-11-23
CHANGJIANG SURVEY PLANNING DESIGN & RES +1
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[0005] The present invention provides a time-shifting method detection system for hidden dangers of dikes that overcomes the above problems or at least partially solves the above problems. Accurate positioning and timely warning of problems
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[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0020] Due to the uneven distribution of hidden dangers in dikes, and the difficulty of following rules in their position, shape, and size, it is expensive and inefficient to detect hidden dangers only by drilling or using other machinery, and it is easy to miss and mischeck and may cause serious damage. It is difficult to achieve better results if new hidden dangers come. The basic working principle of the high-density electrical method is roughly the same as that of the conventional resistivity method. It is an electrical detection method based on the difference in electrical conductivity of rock and soil. According to the distribution of conduction current in the groun...
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Embodiments of the present invention provide a dike hidden danger time-shift electric method detection system including an electric measurement sensing converter, a multi-function electric tester, anda computer workstation and further including a plurality of electric measurement sensors. The electric measurement sensors are arranged at measurement points in a dike body in an equally-spaced manner and multiple electric measurement sensors form an electric measurement line, and the electric measurement sensors in the electric measurement lines are connected to the electric measurement sensingconverter through electric measurement sensing cables; the electric measurement sensors provide an electric field in the dike body and receive electric signals. The electric measurement sensing converter supplies power to the corresponding one or more electric measurement lines according to control, so that currents are formed on the electric measuring line(s). The multi-function electric tester collects the voltage between every two electric measurement sensors in the electric measuring line(s), and, according to the current and voltage between the every two electric measurement sensors, obtains the resistivity between the measuring points of the two electric measurement sensors. The computer workstation obtains the time-shift resistivity chromatogram representing how the dike body changes with time as a function of the change of the resistivity at different time points and identifies and dynamically tracks leak points based on the time-shift resistivity chromatogram.
Description
technical field [0001] The invention relates to the technical field of embankment monitoring, and more specifically, to a time-shifting electric method detection system for embankment hidden dangers. Background technique [0002] As a realistic and long-term flood control measure, dike engineering occupies an extremely important position in our country's flood control engineering system. Dikes can be said to be the lifeline of the people. Timely detection and grasp of the quality of dikes, discovery and elimination of hidden dangers in embankments, and improvement of dike flood defense capabilities are the key tasks of major river flood control projects. [0003] There are three main detection methods for dike hidden dangers: geological drilling, artificial inspection and geophysical exploration. The former two cannot meet various requirements such as fast, accurate and lossless. Geophysical prospecting is an indirect detection method, which is to judge the buried depth, s...
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IPC IPC(8): G01V3/02G08C17/02
Inventor 张建清李文忠孙卫民杜惠光刘方文隋成兴
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES