Urban high-density resistivity exploration to prevent collision and excessive contact resistance of electrodes

Abstract

The invention provides an electrode for preventing collision and excessive contact resistance in urban high-density resistivity method exploration. The first end of a first rod is connected to the first end of a first spring, a spring door is provided at the first end of a first pipe, the first end of the first spring is connected to one side of the spring door, and the first end of a second spring is connected to the other side of the spring door; the second end of the first pipe is threadedly connected to the first end of a second pipe, a tip plug is connected to a tip permeable disk on a side away from the tip, the second end of the second spring is connected to the first side of the tip permeable disk, and a liquid permeable through hole is provided on the tip permeable disk near the edge; a second rod extending into the second pipe for pushing open the spring door is connected to the first side of the tip permeable disk, the other side of the tip permeable disk is connected to a side of the tip plug away from the tip, and a bending portion for limiting the tip permeable disk facing the central axis of the second pipe is provided at the second end of the second pipe; the invention solves the problem of the electrode being bent during urban exploration and the problem of the sharp increase in resistance when in contact with the earth, which requires manpower for watering.

Description

Technical Field

[0001] The invention relates to the technical field of high-density electrical prospecting in geophysical prospecting, and in particular to an electrode for preventing collision and excessive contact resistance in urban high-density resistivity prospecting. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Geophysical exploration plays a key role in both geological resource exploration and underground engineering such as tunnels. Among the methods of geophysical exploration, the high-density resistivity method is widely used. The high-density resistivity method is an array exploration method. It is based on the difference in conductivity between rocks and soils, and studies the distribution law of underground conductive current under the action of artificially applied stable current fields. When measuring in the field, it is only necessary to place all electrodes (tens to hundreds) on each measuring point of the observation profile, and then use the program-controlled electrode conversion device and microcomputer engineering electrical measuring instrument to realize rapid and automatic data collection. After the measurement results are sent to the microcomputer, the data can also be processed and various graphical results about the distribution of geoelectric sections can be given. .

[0004] At present, high-density electrical method is not only used in field exploration, but also often used in some underground problems in cities. However, it is inevitable to encounter passing vehicles on the streets in the city. Although there are people, it is difficult to ensure that every car drives around the electrodes. Compared with the cars, the electrodes are very fragile and will be damaged if they are hit. Moreover, on the roads in the city, although holes have been drilled in the early stage to facilitate the insertion of electrodes, some of the roads have very large resistance when in contact, and staff are often required to hold kettles to water the electrodes, which is very labor-intensive when the measuring line is long. Summary of the invention

[0005] In order to address the deficiencies of the prior art, the present invention provides an electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration, which solves the problem of the electrode being bent during urban exploration and the problem of a sharp increase in resistance when in contact with the ground, requiring manpower for watering.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides an electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration.

[0008] An electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration, comprising: a first rod, a first pipe, a second pipe, a first spring, a second spring, a tip plug and a second rod;

[0009] The first end of the first rod is connected to the first end of the first spring, the first end of the first tube is provided with a spring door, the first end of the first spring is connected to one side of the spring door, and the first end of the second spring is connected to the other side of the spring door;

[0010] The second end of the first pipe is threadedly connected to the first end of the second pipe, a side of the tip plug away from the tip is connected to a tip water permeable disk, a second end of the second spring is connected to a first side of the tip water permeable disk, and a liquid permeable through hole is opened near the edge of the tip water permeable disk;

[0011] A second rod extending into the second pipe for pushing open the spring door is connected to a first side of the tip water-permeable tray, and the other side of the tip water-permeable tray is connected to a side of the tip plug away from the tip. The second end of the second pipe is provided with a bending portion facing the central axis of the second pipe for limiting the tip water-permeable tray.

[0012] As an optional implementation, the area of ​​the side of the tip plug away from the tip portion is smaller than the area of ​​the tip water-permeable disk, and the liquid-permeable through hole is provided at a position on the tip water-permeable disk that does not contact the tip plug.

[0013] As an optional implementation manner, the bending portion is arranged around the second pipe.

[0014] As an optional implementation, there are multiple bending portions, and the multiple bending portions are arranged at intervals around the second pipe.

[0015] As an optional implementation manner, the first rod and the second rod are both metal rods.

[0016] As an optional implementation, the second tube is used to store liquid.

[0017] As an optional implementation, there are multiple liquid-permeable through holes, and the multiple liquid-permeable through holes are arranged at equal intervals around the central axis of the tip water-permeable disk.

[0018] As an optional implementation, the tip water-permeable disk is a circular disk.

[0019] As an optional implementation manner, the bending portion and the second pipe are integrally formed.

[0020] As an optional implementation, the tip water-permeable disc is disposed in the second pipe member to seal the liquid in the second pipe member.

[0021] The second aspect of the present invention provides an operation method for exploring electrodes for anti-collision and anti-contact resistance by using the urban high-density resistivity method, and the operation method for exploring electrodes for anti-collision and anti-contact resistance by using the urban high-density resistivity method includes the following steps:

[0022] Before conducting the survey, the electrode is inserted into the liquid, the liquid covers the water of the spring gate, and the second pipe is filled with the liquid;

[0023] When conducting exploration, the electrode is inserted into the borehole, so that the second spring is compressed to release the liquid in the second pipe;

[0024] Connect the electrodes to the cable for exploration;

[0025] Repeat the above steps until the exploration is completed.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The anti-collision and anti-excessive contact resistance electrode for urban high-density resistivity exploration of the present invention solves the problem of the electrode being bent during urban exploration and the problem of a sharp increase in resistance when in contact with the ground, which requires manpower for watering.

[0028] 2. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration described in the present invention can be directly watered during the insertion of the electrode, avoiding the problem of high resistance during measurement and also avoiding secondary watering.

[0029] 3. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration described in the present invention is detachable. When a part of it is damaged, only the part can be replaced, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] Figure 1 This is a front view of the electrode provided in Example 1 of the present invention.

[0032] Figure 2 This is a schematic diagram of pressing an electrode provided in Example 1 of the present invention.

[0033] Figure 3 A schematic diagram of a tip provided in Example 1 of the present invention.

[0034] Figure 4 A mid-end schematic diagram provided for Example 1 of the present invention.

[0035] Figure 5 This is a terminal schematic diagram provided for Example 1 of the present invention.

[0036] Figure 6 A schematic diagram of the connection between the end and the middle end provided in Example 1 of the present invention.

[0037] Among them, 1-first rod; 2-first spring; 3-second spring; 4-second rod; 5-second pipe; 6-tip water-permeable disk; 7-tip plug; 8-liquid-permeable hole; 9-bending part; 10-spring door; 11-connecting thread; 12-first pipe. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0042] Embodiment 1:

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and 6 As shown, Example 1 of the present invention provides an electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration, including a tip (which can be deeply inserted into the soil), a middle end, a terminal end (a high-strength spring in the terminal end can play a buffering role. When a vehicle hits the electrode, it will not break and will automatically rebound to its original state after bending) and a high-strength spring. The materials of all parts have the properties of corrosion resistance, high strength and friction resistance.

[0044] The tip is hard enough to be inserted into the soil, and can be tightly integrated with the contour of the middle end at the contour so that the water therein cannot be exposed, and it can be treated to prevent rust, and a round hole is provided on the tip disk for drainage; the contour of the middle end can match the tip well, and the inside can be treated to prevent rust, wherein the spring diameter is slightly smaller than the inner diameter; a spring door is provided on the upper surface of the part where the end is connected to the middle end, which can ensure that the maximum water pressure will not cause it to open when closed, and the door can be knocked open by the rod connected to the tip, and it will close automatically, and the middle spring can be guaranteed to return to its original state after being bent.

[0045] More specifically, it comprises: a first rod 1, a first tube 12, a second tube 5, a first spring 2, a second spring 3, a tip plug 7 and a second rod 4;

[0046] The first end of the first rod 1 is connected to the first end of the first spring 2 (the material is high-strength, high-elasticity, the elastic modulus is large enough, and it can still recover its original shape after long-term multiple lateral bending deformation), the first end of the first pipe 12 is provided with a spring door 10 (its tightness can prevent liquid from flowing out, and can withstand the maximum pressure of the inverted water column on the bottom surface without leaking, and can start closing when the second rod 4 opens the spring door, and the second spring 3 is a high-strength spring, and its performance is not greatly affected by long-term use), the first end of the first spring 2 is connected to one side of the spring door 10, and the first end of the second spring 3 (the material is high-strength, high-elasticity, the elastic modulus is large enough, and it can still recover its original shape after long-term multiple compression deformation, and is rust-resistant) is connected to the other side of the spring door 10;

[0047] The second end of the first pipe 12 is threadedly connected to the first end of the second pipe 5, the side of the tip plug 7 away from the tip is connected to the tip water-permeable disk 6, the second end of the second spring 2 is connected to the first side of the tip water-permeable disk 6, and the tip water-permeable disk 6 is provided with a liquid-permeable through hole 8 near the edge;

[0048] The second rod 4 extending into the second pipe 5 for pushing open the spring door 10 is connected to a first side of the tip water-permeable tray 6, and the other side of the tip water-permeable tray 6 is connected to a side of the tip plug 7 away from the tip. The second end of the second pipe 5 is provided with a bending portion 9 facing the central axis of the second pipe 5 for limiting the tip water-permeable tray 6.

[0049] In this embodiment, the second rod 4 is connected to the center of the tip water-permeable tray 6, and its highest point can just contact the spring door without being subjected to force, thereby opening the spring door to replenish water.

[0050] In this embodiment, the area of ​​the side of the tip plug 7 away from the tip is smaller than the area of ​​the tip water-permeable disk 6, and the liquid-permeable through hole is provided at a position on the tip water-permeable disk that does not contact the tip plug.

[0051] In this embodiment, the bending portion is arranged around the second pipe.

[0052] It can be understood that in some other embodiments, there are multiple bending portions, and the multiple bending portions are arranged at intervals around the second pipe. Those skilled in the art can choose according to specific working conditions, which will not be described here.

[0053] In this embodiment, the first rod member and the second rod member are both metal rod members. Preferably, in this embodiment, the first rod member and the second rod member are both iron rod members. It can be understood that in some other embodiments, the first rod member and the second rod member can also be conductive rod members of other materials. Those skilled in the art can make a choice according to specific working conditions, which will not be elaborated here.

[0054] In this embodiment, the second pipe is used to store liquid, preferably water. It can be understood that in some other embodiments, other anti-rust liquids can also be used. Those skilled in the art can choose according to specific working conditions, which will not be repeated here.

[0055] In the present embodiment, there are a plurality of liquid-permeable through holes, and the plurality of liquid-permeable through holes are arranged at equal intervals around the central axis of the tip water-permeable disk. It can be understood that in some other embodiments, the liquid-permeable through holes may be arranged at unequal intervals, and the sizes of the holes may also be inconsistent. Those skilled in the art may make a selection based on the specific working conditions, which will not be elaborated here.

[0056] In this embodiment, the tip water-permeable disk is a circular disk, and the tip water-permeable disk is arranged in the second pipe fitting. It can be understood that in some other embodiments, the tip water-permeable disk can also have other shapes, as long as it matches the internal space of the second pipe fitting to achieve the blocking of one end of the second pipe fitting. Those skilled in the art can make a choice according to the specific working conditions, which will not be elaborated here.

[0057] In this embodiment, the bending portion and the second pipe are integrally formed. It can be understood that in some other embodiments, the bending portion can also be welded on by welding the materials. Those skilled in the art can choose according to the specific working conditions, which will not be described here.

[0058] Embodiment 2:

[0059] Embodiment 2 of the present invention provides an operation method for exploring electrodes with anti-collision and excessive contact resistance using a high-density resistivity method in a city, and utilizing the high-density resistivity method in a city described in Embodiment 1 to explore electrodes with anti-collision and excessive contact resistance includes the following process:

[0060] Before conducting the survey, the electrode is inserted into the liquid, the liquid covers the water of the spring gate, and the second pipe is filled with the liquid;

[0061] When conducting exploration, the electrode is inserted into the borehole, so that the second spring is compressed to release the liquid in the second pipe;

[0062] Connect the electrodes to the cable for exploration;

[0063] Repeat the above steps until the exploration is completed.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration, characterized in that: include: a first rod, a first tube, a second tube, a first spring, a second spring, a tip plug, and a second rod; The first end of the first rod is connected to the first end of the first spring, the first end of the first tube is provided with a spring door, the first end of the first spring is connected to one side of the spring door, and the first end of the second spring is connected to the other side of the spring door; The second end of the first pipe is threadedly connected to the first end of the second pipe, a side of the tip plug away from the tip is connected to a tip water permeable disk, a second end of the second spring is connected to a first side of the tip water permeable disk, and a liquid permeable through hole is opened near the edge of the tip water permeable disk; A second rod extending into the second pipe for pushing open the spring door is connected to a first side of the tip water-permeable tray, and the other side of the tip water-permeable tray is connected to a side of the tip plug away from the tip. The second end of the second pipe is provided with a bending portion facing the central axis of the second pipe for limiting the tip water-permeable tray.

2. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The area of ​​the side of the tip plug away from the tip is smaller than the area of ​​the tip water permeable plate, and the liquid permeable through hole is arranged at a position on the tip water permeable plate that does not contact the tip plug.

3. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The bending portion is arranged around the second pipe member; or; There are multiple bending parts, and the multiple bending parts are arranged at intervals around the second pipe.

4. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The first rod and the second rod are both metal rods.

5. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The second tube is used for storing liquid.

6. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: There are a plurality of liquid-permeable through holes, which are arranged at equal intervals around the central axis of the tip water-permeable disk.

7. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The tip water-permeable disc is a circular disc.

8. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The bending portion and the second pipe are formed in one piece.

9. The electrode for preventing collision and excessive contact resistance in urban high-density resistivity exploration as claimed in claim 1, characterized in that: The tip water-permeable disc is arranged in the second pipe member and is used for blocking the liquid in the second pipe member.

10. An operating method for preventing collision and excessive contact resistance of electrodes in urban high-density resistivity exploration according to any one of claims 1 to 9, characterized in that: The process includes: Before conducting the survey, the electrode is inserted into the liquid, the liquid covers the water of the spring gate, and the second pipe is filled with the liquid; When conducting exploration, the electrode is inserted into the borehole, so that the second spring is compressed to release the liquid in the second pipe; Connect the electrodes to the cable for exploration; Repeat the above steps until the exploration is completed.

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