Multifunctional test device for measuring disturbed soil water content by ground penetrating radar

Abstract

The invention discloses a multifunctional testing device for determining the water content of disturbed soil by a ground penetrating radar; the device comprises a lower bottom plate made of toughened glass; the lower bottom plate is provided with a left side plate, a right side plate and a back side plate, and the center of the lower bottom plate is provided with a first bottom plate; both sides of the first bottom plate are each provided with a second bottom plate, each second bottom plate is provided with supporting columns, and the supporting columns are provided with supporting flat plates; the upper side of the first bottom plate is provided with a collapse flat plate; the collapse flat plate is horizontal to the supporting flat plates; a machine frame is arranged just above the left side plate and the right side plate; a rectangular long plate is arranged on the machine frame and is provided with a power slider; the powder slider is connected with a rope, and the other end of the rope is connected with a wire-standing machine; the wire-standing machine is connected with the ground penetrating radar; the rope, the wire-standing machine and the ground penetrating radar are all arranged below the rectangular long plate; the purposes of being convenient to test, improving the accuracy of test data, adapting to various scales of tests, extending test functions and improving the device stability and pressure resistance are achieved.

Description

technical field [0001] The invention relates to a multifunctional test device for measuring disturbed soil water content by ground penetrating radar. Background technique [0002] In the radar laboratory at the present stage, in some large-scale simulation tests, the test devices are generally made of bricks and concrete pouring or digging out cubes on the ground and then concrete pouring, while small test devices are generally made of It is surrounded by wooden materials (Zhou Qicai, "Ground Penetrating Radar Detection Simulation Test in Front of Shield Construction", Chinese Journal of Engineering Machinery, April 2007, Volume 5, Issue 2, ISSN1672-5581), these two All brought a lot of inconvenience to the experiment. Moreover, the existing test device is too simple to simulate other tests, resulting in a very low utilization rate of the device; at the same time, the device as a whole adopts a closed design with a bottom surface and four sides. During the simulation test, ...

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Problems solved by technology

[0002] In the radar laboratory at the present stage, in some large-scale simulation tests, the test devices are generally made of bricks and concrete pouring or digging out cubes on the ground and then concrete pouring, while small test devices are generally made of It is surrounded by wooden materials (Zhou Qicai, "Ground Penetrating Radar Detection Simulation Test in Front of Shield Construction", Chinese Journal of Engineering Machinery, April 2007, Volume 5, Issue 2, ISSN1672-5581), these two All brought a lot of inconvenience to the experiment

Moreover, the existing test device is too simple to simulate other tests, resulting in a very low utilization rate of the device; at the same time, the device as a whole adopts a closed design with a bottom surface and four sides. During the simulation test, the filling and unloading of the test object only It can be carried out through the upper opening, which is cumbersome and time-consuming and laborious (Du Jun, GPR detection simulation test research on the grouting body behind the tunnel wall, Journal of Underground Space and Engineering, December 2005, Volume 1, No. 6 period, ISSN 1673-0836), and the simulation experiment needs to frequently move the spatial position of the ground penetrating radar to obtain the reflected wave information of the experimental research object. Research", China Rural Water Conservancy and Hydropower, 2013, No. 5), the mobility of the test personnel on the experimental device is poor, and it is difficult to realize the frequent movement of the ground penetrating radar; at present, the existing ground penetrating radar simulation test device does not have Sensor jacks and sensors (Wang Xudong, "Experimental Research on Ground Penetrating Radar Measuring Water Content of Foundation Soil", Journal of Engineering Geology, 2009, Volume 17, Issue 5, ISSN1004-9665), cannot detect the Temperature and water content information; at the same time, the bottom surface and four sides of the device are closed design (Wang Xudong, "Experimental Research on Ground Penetrating Radar Measuring Water Content of Foundation Soil", Journal of Engineering Geology, 2009, Volume 17, Issue 5, ISSN1004-9665 ), the excess water generated during the simulation test cannot be discharged in a timely manner, and at the same time it is difficult to completely clean up the soil, gravel, etc. in the device; there is no related device for soil water content disturbance in the existing ground penetrating radar simulation test device

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