A high-precision multi-point displacement meter for indoor small model test, indoor small model test device, and use method

Abstract

The invention discloses a high-precision multi-point displacement meter for an indoor small-scale model test, an indoor small-scale model test device, and a use method; it belongs to the field of internal displacement monitoring of rock and soil materials; it includes: a small-scale displacement base point (5), and a displacement lead device (16), weight (17), telescopic support (45) and push rod type displacement meter fixed platform (29); wherein, the small-scale displacement base point (5) comprises: substrate (1), M-shaped anti-sinking claw ( 2), measuring line (3) and lead plate (4), displacement measuring hole (7), M-shaped anti-sink hook claw (2) inserted into the base (1), measuring line (3) through the lead plate (4) Pull out the displacement measuring hole (7); a kind of indoor small-scale model test disclosed by the invention uses high-precision multi-point displacement meter, indoor small-scale model test device, and use method, which can be effectively used for indoor small-scale model test monitoring displacement, making up for Gaps in related fields.

Description

technical field [0001] The invention relates to the field of internal displacement monitoring of rock and soil materials, in particular to a high-precision multi-point displacement meter for an indoor small-scale model test, an indoor small-scale model test device and a use method. Background technique [0002] The multi-point displacement meter is suitable for long-term buried in structures such as earth dams, earth slopes, slopes, tunnels, foundations, etc., to measure the displacement of multiple parts in the deep inside. Because of its simple installation and reliable test results, it has been obtained in various monitoring projects. a wide range of applications. [0003] Many scholars have also developed and improved the multi-point displacement meter. For example, Mr. Zou Zhengsheng of Henan University of Technology provided a multi-point displacement meter in CN109931847A. The scheme is: the left end of the guide rail is connected to the multi-point displacement meter...

AI Technical Summary

Problems solved by technology

At present, the multi-point displacement meters used for field testing are too bulky to be used for indoor small-scale model tests

[0007] For the current common grating multi-point displacement gauge, on the one hand, the matching equipment is expensive, and the operation process is cumbersome, and it is not easy to popularize; on the other hand, the grating multi-point displacement gauge is extremely vulnerable to temperature, light source, vibration and packaging. Due to the interference of factors such as methods, it is difficult to guarantee the test accuracy. In addition, due to the limitation of the size of the sensor, it is difficult to miniaturize the multi-point displacement meter, which cannot meet the test requirements of indoor small-scale model tests.

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