CN211528269U

CN211528269U - Resistivity probe and measuring system

Info

Publication number: CN211528269U
Application number: CN201921328410.3U
Authority: CN
Inventors: 亓乐; 王基文; 孙长帅; 张伟; 边磊; 高鹏; 张勇; 刘浩; 任传健; 孟志浩
Original assignee: Shandong Electric Power Engineering Consulting Institute Corp Ltd
Current assignee: Shandong Electric Power Engineering Consulting Institute Corp Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-09-18
Anticipated expiration: 2029-08-15

Abstract

The present disclosure provides a resistivity probe and a measurement system, including: the probe, the electrode base and the tail end are connected in sequence; and a plurality of electrodes are arranged on the side wall of the electrode base in a surrounding manner. The total length of the electrode base is reduced on the premise that the distance between every two electrodes is the same as that of a conventional conductivity probe, so that the total length of the probe is reduced, and the probe is suitable for occasions with limited total length of some probes.

Description

Resistivity probe and measuring system

Technical Field

The present disclosure relates to the field of probing technologies, and in particular, to a resistivity probe and a measurement system.

Background

The field in which resistivity is located is the field of geotechnical investigation. The method can measure the PH value of soil, can assist layering through resistivity in a natural state to determine the density of soil body particles of each layer, thereby achieving the purpose of judging the soil quality and the main composition of each layer, can determine the depth of each stratum by combining the depth detection of static sounding, and can compare the depth with the conventional mechanical measurement result, so that the test result is more rigorous.

The existing resistivity probe has too large volume, so that the resolution cannot reach the precision of a mechanical probe, and the detected area is too large, so that the contrast effect of two tests of mechanics and electricity is poor, and the probe cannot be used in some occasions.

SUMMERY OF THE UTILITY MODEL

The purpose of the embodiment of the specification is to provide a resistivity probe, on the premise that the distance between every two electrodes is the same as that of a conventional conductivity probe, the overall length of an electrode base is reduced, and further the overall length of the probe is reduced, so that the resistivity probe is suitable for being used in occasions with limited overall length of some probes.

The embodiment of the specification provides a resistivity probe, which is realized by the following technical scheme:

the method comprises the following steps: the probe, the electrode base and the tail end are connected in sequence;

and a plurality of electrodes are arranged on the side wall of the electrode base in a surrounding manner.

According to the further technical scheme, the probe, the electrode base and the tail end are connected in sequence through threads.

In a further technical scheme, the electrodes comprise a first electrode, a second electrode, a third electrode and a fourth electrode which are cylindrical copper bars or other conductors.

According to a further technical scheme, the first electrode, the second electrode, the third electrode and the fourth electrode are arranged and distributed on the side wall of the electrode base in a semi-circle surrounding mode.

According to a further technical scheme, the parameters which can be measured by the probe are as follows: cone tip resistance, pore water pressure, and sidewall friction.

According to a further technical scheme, the tail end is mechanically connected with the probe rod.

The embodiment of the specification provides a measurement system, and the resistivity probe is adopted and transmits acquired data to a background server.

Compared with the prior art, the beneficial effect of this disclosure is:

the total length of the electrode base is reduced on the premise that the distance between every two electrodes is the same as that of a conventional conductivity probe, so that the total length of the probe is reduced, and the probe is suitable for occasions with limited total length of some probes.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.

FIG. 1 is a schematic diagram of an embodiment of the present disclosure;

in the figure, 1. a probe; 2. an electrode base; 3. a first electrode; 4. a second electrode; 5. a third electrode; 6. a fourth electrode; 7. and (5) ending.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 disclosure 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 example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Example of implementation 1

This embodiment discloses a resistivity probe, see fig. 1, with a conventional probe 1 on the left, an electrode base 2 in the middle and a tail end 7 on the right, which are connected by a screw thread. The first electrode 3, the second electrode 4, the third electrode 5 and the fourth electrode 6 are cylindrical copper bars or other conductors which are arranged on the side wall of the electrode base 2 in a semi-circumferential surrounding manner, so that the installation has the advantage that the overall length of the electrode base 2 is reduced on the premise that the distance between every two electrodes is the same as that of a conventional conductivity probe, and the overall length of the probe is further reduced, and the probe is suitable for occasions with limited overall lengths of probes.

The conventional probe 1 is a mechanical probe, which can measure typically 3 parameters: cone tip resistance, pore water pressure, sidewall friction. The electrode base 2 is a resistivity test module, and is equipped with a resistivity test electrode. The tail end 7 is used as a structural member, internally used for wiring and installing a connector and used for being mechanically connected with the probe rod.

The embodiment adopts the threaded connection, so that the reliability of connection can be improved, the volume of the connection part can be reduced, and the seal is easy to design and install.

The four electrodes are adopted in the embodiment based on the resistivity measurement by the wennan method, and the resistivity measurement principle is referred to.

The four electrodes are arranged on the side wall of the electrode base 2 in a surrounding mode and spirally surround like a thread line.

The method is suitable for occasions with limited overall length of some probes, for example, the probes with small volume are used on the probes, if the probes are too long or the detection depth is too shallow, the closer the electrodes are to the mechanical probe part, the better the contrast effect is, and even when the method is used in some indoor tests, in order to effectively utilize the depth of a soil sample, some probes with very small volume are usually selected to improve the test precision and reduce the influence of the boundary effect.

Example II

When the resistivity probe is used, the resistivity probe can be used in occasions needing to measure the resistivity, such as site selection investigation of pipeline routing burying ground, or as the basis of multi-parameter comparison in some projects with higher requirements, or environmental pollution investigation.

Usually, mechanical data and resistivity data are collected during static sounding operation, background statistics is performed on the data during the collection process, the depth is used as a vertical coordinate, and the collected data is used as a horizontal coordinate to perform curve drawing.

It is to be understood that throughout the description of the present specification, reference to the term "one embodiment", "another embodiment", "other embodiments", or "first through nth embodiments", etc., is intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or materials described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A resistivity probe, comprising:

the probe, the electrode base and the tail end are connected in sequence;

a plurality of electrodes are arranged on the side wall of the electrode base in a surrounding manner; the electrodes comprise a first electrode, a second electrode, a third electrode and a fourth electrode and are cylindrical copper rods; the first electrode, the second electrode, the third electrode and the fourth electrode are arranged and distributed on the side wall of the electrode base in a semi-circle surrounding manner.

2. A resistivity probe according to claim 1 wherein the probe, electrode pad and tail are connected in series by screw threads.

3. A resistivity probe according to claim 2 wherein the first, second, third and fourth electrodes are helically wrapped around the electrode base sidewall.

4. A resistivity probe according to claim 1 wherein the probe is capable of measuring the following parameters: cone tip resistance, pore water pressure, and sidewall friction.

5. A resistivity probe according to claim 1 wherein the tail end is mechanically connected to the probe shaft.

6. A measurement system, characterized in that a resistivity probe according to claims 1-5 is used, which transmits the acquired data to a background server.