Detector for burying depth of antiseepage film of dam and using method of detector

Abstract

The invention discloses a detector for the burying depth of an antiseepage film of a dam and a using method of the detector. The detector comprises a penetration rod, the penetration rod is inserted into a bore hole at one side of the antiseepage film via a fixing device, the bottom of the penetration rod is provided with a measuring electrode and a resistivity measuring instrument, the measuringelectrode and the resistivity measuring instrument are connected with a control display via a first lead in the penetration probe, the fixing device is installed in an orifice at one side of the antiseepage film, the penetration rod is inserted into the bore hole at one side of the antiseepage film slowly in segments via the fixing device, change of the current density with the depth in the control display is observed, and after a peak of the current density, the scale, corresponding to the current density peak, in the penetration rod body is read, and serves as the burying depth of the antiseepage film. After that dam soil is electrified, the current density peak in the bottom of the antiseepage film is detected, a measuring result is high in accuracy, the aperture of the bore hole formedby the detector in the dam is small, and damage on the dam itself is low.

Description

technical field [0001] The invention belongs to the technical field of anti-seepage membrane detection, and in particular relates to a detection device for embedding depth of an anti-seepage membrane of a dam and a use method. Background technique [0002] Embankment engineering is a kind of flood control engineering that can be seen everywhere. The role of embankments is to prevent flooding, protect residents and industrial and agricultural production. In the process of embankment construction, anti-seepage is an essential and crucial work. At present, many embankment projects adopt the method of vertical plastic laying for anti-seepage, and use artificial synthetic material HPDE as the anti-seepage layer. Due to its strong chemical corrosion resistance, mature manufacturing process, easy on-site welding, and accumulated relatively mature engineering implementation experience, HDPE geomembrane has a wide range of applications. [0003] At present, in the methods of measu...

AI Technical Summary

Problems solved by technology

Among the electrical methods, the DC resistivity method, double-arrangement CP resistivity method and high-density resistivity method have less damage to embankment engineering, but the accuracy of the detection results is not high. location range

Although the electrical logging method has high precision, the electrical logging method requires drilling, and the size of the hole is large, which will cause great damage to the embankment itself

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