CN216717687U - Electrical method observation system for leakage hidden danger of enclosure structure - Google Patents
Electrical method observation system for leakage hidden danger of enclosure structure Download PDFInfo
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- CN216717687U CN216717687U CN202123068221.7U CN202123068221U CN216717687U CN 216717687 U CN216717687 U CN 216717687U CN 202123068221 U CN202123068221 U CN 202123068221U CN 216717687 U CN216717687 U CN 216717687U
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- 238000010291 electrical method Methods 0.000 title description 2
- 230000005284 excitation Effects 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
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Abstract
The utility model discloses an electric observation system for leakage hidden danger of an enclosure structure, which comprises: the excitation source is arranged in a drill hole close to the enclosure structure and/or at the end head of the outer side of the section steel exposed out of the ground in the enclosure structure; the acquisition array is laid on the inner side of the enclosure structure; the receiving device is placed in an area, far away from the acquisition array, in the enclosure structure; the infinite reference point is arranged in a region without discrete current interference inside the envelope structure; a laptop connected with the excitation source, the collection array, the receiving device and the infinity reference point via communication cables, respectively. The method can provide specific enclosure structure reinforcing range and reinforcing degree before the foundation pit is excavated so as to ensure the subsequent construction safety of the foundation pit, avoid the construction risk and realize high efficiency and no damage.
Description
Technical Field
The utility model relates to the technical field of measuring line arrangement of electric method detection, in particular to an electric method observation system for leakage hidden danger of an enclosure structure.
Background
In the process of excavating the foundation pit of the pile-shaped enclosure structure in the SMW construction method, various risk accidents of the foundation pit are caused due to leakage of the enclosure structure. Therefore, in order to reduce the risk of foundation pit construction, the airtightness of the enclosure structure needs to be detected before excavation. At present, the foundation pit leakage detection technology at home and abroad mainly aims at detecting the approach of an underground continuous wall or a cast-in-place pile type enclosure structure, and a detection case report applied to the SMW construction method pile type enclosure structure is not seen. The implementation method aims at the characteristics of the pile-type enclosure structure in the SMW construction method, and utilizes the section steel inserted in the enclosure structure or the auxiliary drilling or the combination of the section steel and the auxiliary drilling to supply power, so that the observation system for efficiently and nondestructively determining the leakage position of the foundation pit is provided, the specific enclosure structure reinforcement range and the reinforcement degree are provided before the foundation pit is excavated, and the technical support is provided for the safe construction of the foundation pit.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide an electric observation system for the hidden danger of leakage of the enclosure structure, which can ensure the subsequent construction safety of the foundation pit and avoid the construction risk, in order to solve the technical problems.
An electrical observation system for hidden danger of leakage of an enclosure structure comprises:
the excitation source is arranged in a drill hole close to the enclosure structure and/or at the end head of the outer side of the section steel exposed out of the ground in the enclosure structure;
the acquisition array is laid on the inner side of the enclosure structure;
the receiving device is placed in an area, far away from the acquisition array, in the enclosure structure;
the infinite reference point is arranged in a region without discrete current interference inside the envelope structure;
a laptop connected with the excitation source, the collection array, the receiving device and the infinity reference point via communication cables, respectively.
In one embodiment, the excitation source comprises a DC power source, an AC power source or various types of power sources with different frequencies, and the excitation source is connected to at least one of the borehole and/or the section steel.
In one embodiment, the acquisition array includes a number of signal receivers and communication cables.
In one embodiment, the distance between the acquisition array and the inner side of the enclosure is 0-10m, and the length of the acquisition array is 5-100 m.
In one embodiment, the receiving device comprises a steel electrode, a copper electrode, a liquid non-polarizing electrode, or a solid non-polarizing electrode, and the receiving device is at least 20m from the acquisition array.
According to the electric observation system for the leakage hidden danger of the enclosure structure, after the construction of the enclosure structure is finished, H-shaped steel or a drill hole or a combination of the H-shaped steel and the drill hole on the exposed ground surface of a pile in the SMW construction method is used as an excitation source, electric signals inside and outside a foundation pit are acquired by means of the acquisition array and the receiving device, and different compaction effects of the measured enclosure structure can be obtained by performing comparative analysis on the acquired signals.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electrical observation system for leakage hidden danger of an enclosure structure of the utility model;
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
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 invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides an electrical observation system for hidden danger of leakage of an enclosure, including: borehole 1, excitation source 2, acquisition array 5, laptop 6, receiving device 7, and infinity reference point 8.
The excitation source 2 is arranged in the drill hole 1 close to the building enclosure 3 and/or at the end of the outer side of the section steel exposed out of the ground in the building enclosure 3; the acquisition array 5 is laid on the inner side of the enclosure structure 3; the receiving device 7 is placed in an area of the building enclosure 3 away from the acquisition array 5; the infinite reference point 8 is arranged in an area without discrete current interference inside the envelope 3; the laptop 6 is connected to the excitation source 2, the acquisition array 5, the receiving device 7 and the infinity reference point 8 via the communication cable 4, respectively.
In this embodiment, the excitation source 2 is sequentially connected with the drill hole 1 adjacent to the enclosure structure 3 and the section steel (H-section steel) on the SMW construction method pile form enclosure structure 3 for combined excitation, and if rust occurs on the surface of the section steel, the section steel must be connected after being derusted. The portable computer 6 can be pre-installed with excitation and acquisition control software and has preliminary data preprocessing capacity, and specific positions and leakage severity of leakage hidden dangers in the pile-form enclosure structure 3 of the SMW construction method can be specified after acquisition is finished. Optionally, the communication cable 4 has better functions of communication, moisture protection, corrosion protection and high temperature protection, and the portable computer 6, the collection array 5, the excitation source 2, the receiving device 7 and the infinite reference point 8 are connected in series by the communication cable 4 to finally form the electrical observation system.
According to the electric observation system for the leakage hidden danger of the enclosure structure, after the construction of the enclosure structure 3 is finished, the drill hole 1 close to the enclosure structure 3 and the H-shaped steel of the exposed ground surface of the pile in the SMW construction method are used as the combined excitation source 2, electric signals inside and outside a foundation pit are obtained by means of the acquisition array 5 and the receiving device 7, and the acquired signals are contrasted and analyzed to obtain the compaction effects of different parts of the measured enclosure structure 3.
In an embodiment of the present invention, the excitation source 2 includes a dc power source, an ac power source, or various types of power sources with different frequencies, and the excitation source 2 is connected to at least one borehole 1 and/or the section steel. In this embodiment, the excitation source 2 and the section steel need to have good conductivity, so as to ensure the accuracy of the electrical signal.
In one embodiment of the present invention, the acquisition array 5 includes a number of signal receivers and communication cables. Optionally, the distance between the collection array 5 and the inner side of the enclosure 3 is 0-10m, and the length of the collection array 5 is 5-100 m. In this embodiment, the collection array 5 is located near one side of the excitation source 2.
In an embodiment of the present invention, the distance between each adjacent hole site 1 or the steel section end is not greater than 50 cm.
In an embodiment of the present invention, the receiving device 7 comprises a steel electrode, a copper electrode, a liquid non-polarized electrode or a solid non-polarized electrode, and the like, and the receiving device 7 is at least 20m away from the collection array 5.
The using process of the utility model is as follows:
1) detecting the trenchless SMW construction method pile form enclosure structure 3 with the length and the width of 100 x 30m respectively;
2) arranging the drill hole 1 at the outer side of the pile-form enclosure structure 3 close to the SMW construction method;
3) arranging an excitation source 2 on the outer side of the section steel of the SMW construction method pile-form enclosure structure 3 to be detected and in a drill hole 1; the power supply and detection can be carried out on the single construction method piles in turn, or a plurality of construction method piles are connected at the same time for power supply and detection;
4) arranging the acquisition array 5 at the inner side of the enclosure 3, wherein the length of the enclosure 3 needing to be detected is 30m, so that the length of the acquisition array 5 is 30m in the embodiment;
5) in the embodiment, the receiving device 7 is placed near the enclosure structure on the inner side of the foundation pit, because the width of the foundation pit is 30 m;
6) arranging the infinite reference point 8 in an area without discrete current interference;
7) sequentially connecting an excitation source 2, a portable computer 6, an acquisition array 5, a receiving device 7 and an infinite reference point 8 by using a communication cable 4;
8) after all the detections are finished, the portable computer 6 pre-installed with the excitation and acquisition control software carries out pretreatment and preliminarily checks the validity of the obtained signals so as to ensure the validity of the detections;
9) sequentially completing the detection of all the building enclosures 3 to be detected according to the steps 2) -8), and measuring the accurate coordinates of all the measuring lines;
10) summarizing all detection data and coordinates, and performing data sorting, filtering and inversion to form corresponding detection result files; and judging the specific position and the leakage severity of the leakage hidden danger of the enclosure structure through comprehensive analysis, and providing classified reinforcement suggestions for owners and construction units according to the specific position and the leakage severity.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. An electric observation system for hidden danger of leakage of an enclosure structure is characterized by comprising:
the excitation source (2) is arranged in the drill hole (1) close to the building envelope and/or at the end head of the outer side of the section steel exposed out of the ground in the building envelope (3);
the acquisition array (5), the acquisition array (5) is laid on the inner side of the enclosure structure (3);
a receiving device (7), said receiving device (7) being placed within said enclosure (3) in an area remote from said acquisition array (5);
the infinite reference point (8) is arranged in a region without discrete current interference inside the enclosure structure (3);
a portable computer (6), wherein the portable computer (6) is respectively connected with the excitation source (2), the acquisition array (5), the receiving device (7) and the infinite reference point (8) through a communication cable (4).
2. An electrical observation system for leakage risks of a building envelope according to claim 1, characterized in that the excitation source (2) comprises a dc power source, an ac power source or various types of power sources with different frequencies, and the excitation source (2) is connected to at least one borehole (1) and/or section steel.
3. An electrical observation system of a containment leakage hazard according to claim 2, wherein the collection array (5) comprises a plurality of signal receivers and communication cables.
4. An electrical observation system of a leak hazard of a building envelope according to claim 3, characterized in that the distance of the collection array (5) from the inner side of the building envelope (3) is 0-10m, and the length of the collection array (5) is 5-100 m.
5. An electrical observation system of a containment leakage hazard according to claim 1, wherein the receiving device (7) comprises steel, copper, liquid or solid non-polarized electrodes, and the receiving device (7) is at least 20m from the acquisition array (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123068221.7U CN216717687U (en) | 2021-12-08 | 2021-12-08 | Electrical method observation system for leakage hidden danger of enclosure structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123068221.7U CN216717687U (en) | 2021-12-08 | 2021-12-08 | Electrical method observation system for leakage hidden danger of enclosure structure |
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| CN216717687U true CN216717687U (en) | 2022-06-10 |
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| CN202123068221.7U Active CN216717687U (en) | 2021-12-08 | 2021-12-08 | Electrical method observation system for leakage hidden danger of enclosure structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218845A (en) * | 2022-06-24 | 2022-10-21 | 中国第一汽车股份有限公司 | Method, equipment and medium for measuring compression amount of sealing strip under finished automobile condition |
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2021
- 2021-12-08 CN CN202123068221.7U patent/CN216717687U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218845A (en) * | 2022-06-24 | 2022-10-21 | 中国第一汽车股份有限公司 | Method, equipment and medium for measuring compression amount of sealing strip under finished automobile condition |
| CN115218845B (en) * | 2022-06-24 | 2024-06-11 | 中国第一汽车股份有限公司 | Method, equipment and medium for measuring compression amount of sealing strip under whole vehicle condition |
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Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |