Roadbed horizontal displacement and vertical displacement comprehensive testing system

Abstract

The invention discloses a roadbed horizontal displacement and vertical displacement comprehensive testing system which comprises a testing tube, a sedimentation magnetic ring, a measuring probe , a double-core cable, an electromagnetic intensity display instrument and a horizontal displacement display instrument. The testing tube is vertically placed in a roadbed drill hole; the testing tube is sleeved with the sedimentation magnetic ring along the tube periphery; a groove rail is longitudinally arranged on the inner wall of the testing tube along a tube body; the measuring probe which is of a cylinder structure is arranged in the testing tube; a roller of the measuring probe is clamped into the groove rail of the testing tube and can enable the measuring probe to vertically move in the testing tube; an angle sensor and a magnetic field intensity sensor in the measuring probe are respectively connected with the horizontal displacement display instrument and the electromagnetic intensity display instrument by the double-core cable. The horizontal displacement and vertical displacement comprehensive testing system which the invention relates to integrates horizontal displacement and vertical displacement testing equipment into one set of system; the testing tube is only buried in one roadbed drill hole; the horizontal displacement and the vertical displacement of a roadbed are simultaneously tested by the probe moving in the testing tube; the electromagnetic intensity display instrument is added; testing accuracy is improved; a more suitable technical means is provided for monitoring deformation of the railway roadbed.

Description

technical field [0001] The invention relates to a railway embankment displacement testing device. Background technique [0002] The deformation of the railway subgrade needs to be strictly controlled. During the construction of the railway subgrade and the post-construction operation stage, the necessary horizontal and vertical displacement observations of the subgrade should be carried out to judge whether the subgrade deformation is within a reasonable range and ensure the safety and security of traffic. comfortable. [0003] Existing measurement of the horizontal displacement and vertical displacement of the subgrade is carried out by using two sets of testing equipment, respectively drilling test pipes in the subgrade, and using respective test probes for testing. [0004] Existing horizontal displacement measuring equipment includes a test tube, a measuring probe with a built-in angle sensor and a horizontal displacement display instrument connected to the angle sensor...

AI Technical Summary

Problems solved by technology

[0006] The existing subgrade testing method using two sets of testing equipment has the following problems: 1. Drilling holes separately, setting different test tubes, and using their own testing equipment, the resources are relatively wasteful; 2. The probes in the vertical displacement testing equipment are close to each other. The tester makes a sound during the magnetic ring, and the testers collect data after hearing the sound, which has errors, delays and inaccuracies; 3. During the construction of the roadbed, two sets of equipment need to be protected, which brings inconvenience to the construction and increases the observation time. Cost; 4. More importantly, the measuring points of the two observation items cannot be in the same position in space. When analyzing the spatial deformation of the same point, it can only be approximately considered that the adjacent measuring points in the two sets of test items are in the same position , resulting in inaccurate data analysis and affecting the deformation evaluation of the subgrade

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