CN218937348U

CN218937348U - Displacement real-time measurement equipment for side slope model test

Info

Publication number: CN218937348U
Application number: CN202223182294.3U
Authority: CN
Inventors: 纪成亮; 陈宏�; 张伟; 王基文; 杨庆义; 孙旭; 张勇; 席文勇; 于天文; 刘浩
Original assignee: Shandong Electric Power Engineering Consulting Institute Corp Ltd
Current assignee: Shandong Electric Power Engineering Consulting Institute Corp Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-28
Anticipated expiration: 2032-11-28

Abstract

The utility model belongs to the field of slope model tests, and provides displacement real-time measurement equipment for a slope model test, which comprises a displacement detection sensor, a signal receiver and a data processing module, wherein the displacement detection sensor is used for detecting displacement of the slope model test; the displacement detection sensor is arranged in the slope model, and the signal receiver and the data processing module are arranged outside the slope model; each displacement detection sensor comprises a six-axis gyroscope and a signal transmitter, wherein the six-axis gyroscope is used for detecting slope deformation signals and transmitting the slope deformation signals outwards through the signal transmitter, and the signal receiver is used for receiving the signals transmitted by the signal transmitter and transmitting the signals to the data processing module, and the data processing module obtains the spatial deformation amount and the deformation process of the slope in the model test.

Description

Displacement real-time measurement equipment for side slope model test

Technical Field

The utility model belongs to the field of slope model tests, and particularly relates to displacement real-time measurement equipment for a slope model test.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The side slope model test is based on a similarity principle, and the physical quantity connection of the side slope prototype and the side slope prototype is established by utilizing a mathematical relationship to realize the replay of the side slope prototype physical process. The slope model test is a geomechanical model test method, generally controls some identical or similar conditions according to a slope prototype, applies corresponding external load, and researches deformation damage characteristics and evolution processes of the slope, so as to reveal deformation damage mechanisms and damage modes of the slope and guide prediction and control work of the slope.

The slope displacement is used as a basic observed quantity in a model test and is the basis for analyzing the dynamic behavior of the slope. In order to accurately observe the evolution process of the side slope, the current side slope model test generally adopts a high-speed photogrammetry system to measure the displacement of the side slope, and the method is that a grid plate is arranged on one side of the side slope model, and grids are drawn according to a certain size; high-speed cameras are erected on two sides of the slope model, deformation images in the test process are acquired at a rate of hundreds to thousands of frames per second, and then the deformation amount and the deformation speed of the slope model are researched by adopting a digital image processing technology.

The existing high-speed photographic displacement measurement system has the following problems in slope model test: (1) the high-speed photogrammetry system can only capture the deformation image of the surface layer of the side slope, but cannot acquire the deep deformation condition of the side slope; (2) in addition to linear displacement and angular displacement, the deformation of the rock-soil body in the slope model is difficult to comprehensively describe the movement of the rock-soil body by a high-speed photographic displacement measurement system; (3) the high-speed photogrammetry system can record the slope deformation process through images after the slope is deformed, so that the slope displacement is difficult to analyze and calculate in real time; (4) the high-speed photogrammetry system has high requirements on hardware, requires a high-speed camera with high price, and limits the application of the high-speed photogrammetry system in slope model test.

Disclosure of Invention

In order to solve the technical problems in the background art, the utility model provides a displacement real-time measurement device for a slope model test, which can acquire a spatial displacement field of a slope in the model test, can acquire the deformation condition of the slope in real time, and can be used for a tester to rapidly observe the reaction of the slope model under various test conditions.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the displacement real-time measurement device for the side slope model test comprises a displacement detection sensor, a signal receiver and a data processing module;

the displacement detection sensor is arranged in the slope model, and the signal receiver and the data processing module are arranged outside the slope model;

each displacement detection sensor comprises a six-axis gyroscope and a signal transmitter, wherein the six-axis gyroscope is used for detecting slope deformation signals and transmitting the slope deformation signals outwards through the signal transmitter, and the signal receiver is used for receiving the signals transmitted by the signal transmitter and transmitting the signals to the data processing module, and the data processing module obtains the spatial deformation amount and the deformation process of the slope in the model test.

As one embodiment, the displacement detection sensor further comprises a housing, and the six-axis gyroscope and the signal transmitter are both arranged in the housing.

As an embodiment, the housing is further provided with a battery for providing the displacement detection sensor with electrical energy.

As an embodiment, each of the signal receivers includes a radio receiver for receiving the displacement detection sensor transmission signal.

As an embodiment, the number of signal receivers is at least three.

As one embodiment, the signal transmitter employs a low power wireless transmission module.

As one embodiment, the six-axis gyroscope is used for acquiring displacement parameters of acceleration and pitch angle, roll angle and yaw angle of an X axis, a Y axis and a Z axis at a set position in a slope model.

As an embodiment, the data processing module is further connected to a display module.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The displacement real-time measurement equipment for the slope model test can acquire the space displacement field of the slope in the model test, and not only the displacement condition of the surface layer of the space displacement field; the angular displacement of rock-soil body particles in the side slope can be obtained while the linear displacement of the side slope is obtained, and the motion damage process of the side slope in the model test can be analyzed and researched more accurately;

(2) The displacement real-time measurement equipment for the slope model test can acquire the deformation condition of the slope in real time, can enable a tester to rapidly observe the reaction of the slope model under various test conditions, and is convenient for the tester to control and change the test conditions, so that the test is completed better.

Additional aspects of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic diagram of a component framework for displacement real-time measurement for a slope model test according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the displacement detection sensor of FIG. 1;

FIG. 3 is a spatial layout of a displacement real-time measurement device for a slope model test;

in the figure: the device comprises a 1-displacement detection sensor, a 2-signal receiver, a 3-data processing module, a 4-displacement detection sensor shell, a 5-six-axis gyroscope, a 6-battery, a 7-antenna and an 8-circuit board.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As shown in fig. 1 and 3, the displacement real-time measurement apparatus for a side slope model test of the present embodiment includes a displacement detection sensor 1, a signal receiver 2, and a data processing module 3.

The displacement detection sensor 1 is arranged in the slope model, and the signal receiver 2 and the data processing module 3 are arranged outside the slope model;

as shown in fig. 2, each displacement detection sensor 1 includes a six-axis gyroscope 5 and a signal transmitter, the six-axis gyroscope 5 is used for detecting a slope deformation signal and transmitting the slope deformation signal outwards through the signal transmitter, the signal receiver 2 is used for receiving the signal transmitted by the signal transmitter and transmitting the signal to the data processing module 1, and the data processing module 1 obtains the spatial deformation amount and the deformation process of the slope in the model test.

In fig. 2, the displacement detection sensor 1 further includes a housing 4, and the six-axis gyroscope 5 and the signal transmitter are both disposed in the housing 4. The housing 4 is further provided with a battery 6, which battery 6 is used for providing the displacement detection sensor 1 with electrical energy.

The signal transmitter of the present embodiment includes an antenna 7 and a circuit board 8, and transmits the deformation data acquired by the six-axis gyroscope 5 to the signal receiver 2.

In this embodiment, at least three signal receivers are arranged, and the arrangement positions are not fixed, and may be optionally selected from four corner points of the slope model base plane.

The six-axis gyroscope is used for collecting displacement parameters of acceleration and pitch angle, roll angle and yaw angle of an X axis, a Y axis and a Z axis at set positions in the slope model.

In this embodiment, the signal transmitter employs a low power wireless transmission module.

It should be noted that, the six-axis gyroscope 5, the antenna 7 and the circuit board 8 are all of a conventional structure, and may be specifically set by those skilled in the art according to practical situations, and will not be described in detail herein.

It is understood that the battery 6 may be a button battery or the like, and those skilled in the art may specifically select the battery according to the actual situation.

Wherein each of the signal receivers 2 includes a radio receiver for receiving the displacement detection sensor transmission signal.

It should be noted that the radio receiver is an existing structure, and those skilled in the art may specifically set the radio receiver according to the actual situation, which will not be described in detail herein.

In one or more embodiments, the data processing module is further coupled to a display module.

In this embodiment, the data processing module may be a chip such as an FPGA, and a person skilled in the art may select a specific model according to the actual accuracy requirement, which will not be described in detail herein.

The displacement real-time measurement principle for the side slope model test is as follows:

the displacement detection sensor 1 and the signal receiver 2 are distributed, referring to fig. 3, the displacement detection sensor 1 is distributed in a slope model according to a certain interval array, a circuit is turned on, the displacement detection sensor 1 is in an operation state, the signal receiver 2 is distributed at a planned positioning point, and the circuit is turned on, so that the position information of the displacement detection sensor 1 is obtained;

according to a test program, a slope model test is carried out, the slope body is deformed, the displacement detection sensor 1 moves along with the rock-soil body of the part where the displacement detection sensor is located, the six-axis gyroscope 5 records the space displacement and rotation generated by the displacement detection sensor, and the displacement information is transmitted to the outside through the signal transmitter;

the signal receiver 2 receives the signal of the displacement detection sensor 1 and measures the spatial position of the displacement detection sensor 1 in real time; the signal receiver 2 transmits the measured data of the displacement detection sensor 1 and the received data of the displacement detection sensor 1 to the data processing module 3, and the data processing module 3 processes the displacement data sent by the signal receiver 2; the data processing module 3 obtains the true displacement of the displacement detection sensor 1.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The displacement real-time measurement device for the side slope model test is characterized by comprising a displacement detection sensor, a signal receiver and a data processing module;

2. The displacement real-time measurement apparatus for a side slope model test according to claim 1, wherein the displacement detection sensor further comprises a housing, and the six-axis gyroscope and the signal transmitter are both disposed in the housing.

3. A displacement real-time measurement apparatus for slope model test according to claim 2, wherein the housing is further provided with a battery for supplying electric power to the displacement detection sensor.

4. The displacement real-time measurement device for a slope model test according to claim 1, wherein each of the signal receivers includes a radio receiver for receiving the displacement detection sensor transmission signal.

5. The displacement real-time measurement device for a side slope model test according to claim 1, wherein the number of the signal receivers is at least three.

6. The displacement real-time measurement device for a slope model test according to claim 1, wherein the signal transmitter employs a low power consumption wireless transmission module.

7. The displacement real-time measurement apparatus for a slope model test according to claim 1, wherein the six-axis gyroscope is used for acquiring displacement parameters of acceleration and pitch angle, roll angle and yaw angle of an X-axis, a Y-axis and a Z-axis at a set position in a slope model.

8. The displacement real-time measurement device for a side slope model test according to claim 1, wherein the data processing module is further connected to a display module.