Dam ant nest ground penetrating radar longitudinal exploration system

Abstract

The utility model provides a dam ant nest ground penetrating radar longitudinal exploration system, which relates to the technical field of dam ant nest geophysical exploration and comprises a ground penetrating radar host, a receiving and transmitting integrated antenna and a receiving and transmitting integrated cable, and the receiving and transmitting integrated antenna is connected with the ground penetrating radar host through the receiving and transmitting integrated cable. The transmitting-receiving integrated antennas are arranged at the transmitting-receiving integrated measuring points, the distance between the transmitting-receiving integrated measuring points is 0.1 m, the longitudinal exploration system is arranged on a downstream dam slope, the ground penetrating radar host, the transmitting-receiving integrated antennas and the transmitting-receiving integrated cables keep moving synchronously in the using process, and the dam ant nest ground penetrating radar longitudinal exploration system is based on field survey. Termite hidden danger areas are explored and distinguished, and measuring lines and measuring points are reasonably arranged on upstream and downstream dam slopes, so that the orderliness of detection is improved, and the effect of accurately checking ant nests is achieved; the spatial structure of the ant nest can be directly drawn according to the abnormal signals and wave velocity characteristics of the radar waves, and three-dimensional refined exploration of the dam ant nest is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of geophysical detection of dam ant nests, in particular to a longitudinal exploration system of dam ant nest ground penetrating radar. Background Art

[0002] Water administration departments and river basin management agencies at all levels have always attached great importance to the prevention and control of termites in water conservancy projects, and have achieved remarkable results in the habits of termites, prevention and control drugs, ant colony surveys, ant damage prevention, and prevention and control equipment. However, the inspection of ant nests is still mainly based on traditional nest digging and drilling, which seriously affects the efficiency of termite control. Blind digging also has the problem that the ant nests cannot be fully exposed. In addition, termite damage is long-term and repetitive. Regular large-scale excavation of dams will inevitably reduce the anti-seepage performance and structural stability of the project. With the continuous improvement of theoretical technology, instruments and equipment, and interpretation capabilities, geophysical exploration technology has achieved remarkable results in karst exploration, road cavities, pipe burst detection, goaf exploration, shallow caves, and urban underground space exploration. It has also actively applied radioactive exploration, microwave remote sensing, resistivity method, ground penetrating radar, and acoustic detection technologies to termite detection, effectively improving the level of accurate ant nest detection. In addition, on-site exploration is not restricted by seasons and flood seasons, which helps to promote the normalized detection of dams throughout the year.

[0003] At present, high-density electrical method and ground penetrating radar method are the main geophysical exploration methods for ant nest detection, and they have also achieved significant results in actual detection. However, the depth of ant nests is basically within 3m. The contradiction between the depth and resolution of high-density electrical method results in a short length of the survey line, which leads to low work efficiency on site and is difficult to adapt to the rapid detection of long lines. Compared with high-density electrical method, ground penetrating radar has higher work efficiency and simpler operation, and its image resolution and accuracy also have incomparable advantages, and it has gradually become the mainstream method for ant nest detection. However, since geophysical detection method is an indirect detection method, ground penetrating radar is often affected by the engineering environment, rock and soil structure, and underground inhomogeneities, which makes it difficult for a single survey line to accurately determine the existence of an ant nest. In addition, the ant nest is a regular or irregular geometric body with three-dimensional space. It is obviously difficult for a single profile to reveal the depth, scale, morphology and other spatial location information of the ant nest. On the other hand, the current ground penetrating radar survey line is mainly arranged on the dam top, so the detection results can only describe the geological information of the longitudinal section of the dam top, but due to the shallow detection depth of ground penetrating radar, it is obviously insufficient for deep ant nests. It should be pointed out that ant nest detection should not only focus on the spatial distribution of ant nests on the downstream dam slope, but also clarify the connectivity of ant nests inside the dam body. Especially during the flood season, when it is not suitable for excavating ant nests, it is particularly critical to determine whether the ant nests have become leakage channels.

[0004] In summary, the current ground-penetrating radar can only reveal the geological profile below the survey line, and it is difficult to determine the spatial structure of the ant nest. In addition, the depth reflected by the ground-penetrating radar survey line on the dam top is relatively shallow, and the direction and burial depth of the ant nest channel cannot be grasped. It can be seen that the current lack of a multi-profile joint diagnosis system and method for dam ant nests has become a shortcoming in the refined detection of ant nests. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a dam ant nest ground penetrating radar longitudinal exploration system, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a dam ant nest ground penetrating radar longitudinal exploration system, including a ground penetrating radar host, a transceiver integrated antenna and a transceiver integrated cable, the transceiver integrated antenna of the longitudinal exploration system is connected to the ground penetrating radar host via the transceiver integrated cable, the transceiver integrated antenna is arranged at the transceiver integrated measurement point, and the spacing between the transceiver integrated measurement points is 0.1m;

[0009] The longitudinal exploration system is arranged on the downstream dam slope;

[0010] In particular, the ground penetrating radar host, the integrated transceiver antenna and the integrated transceiver cable keep moving synchronously during use;

[0011] The specific implementation steps of the vertical exploration system of the utility model are as follows:

[0012] 1. Through on-site investigation of the current situation of termites on the dam and the infested project area, the scope of the longitudinal exploration area of ​​the ant nest ground penetrating radar is determined according to the characteristics and location of the termite traces on the ground and the ground indicators of the dead nest;

[0013] Second, according to the length and width of the longitudinal exploration area and the height of the dam, the longitudinal exploration area is divided into multiple longitudinal ground-penetrating radar survey lines, and according to the detection accuracy, multiple integrated transmitter-receiver measurement points are divided on the longitudinal ground-penetrating radar survey line of the downstream dam slope;

[0014] 3. Arrange the integrated transceiver antenna at the integrated transceiver measurement point, connect the integrated transceiver antenna to the ground penetrating radar host with the integrated transceiver cable, start the ground penetrating radar host, and set the project file, survey line name, antenna type, transmission frequency, sampling interval, acquisition time, filter range, gain category and other parameters on the ground penetrating radar host;

[0015] 4. Data collection is carried out through the collection button on the ground penetrating radar host, and the integrated transmitting and receiving antennas are arranged on the longitudinal ground penetrating radar survey line of the downstream dam slope in turn according to the agreed detection position and movement direction, so as to complete the data collection of all measuring points on the longitudinal ground penetrating radar survey line;

[0016] 5. After completing all the collection of a group, complete the collection of all survey line data in the longitudinal exploration area according to steps 3 and 4.

[0017] 6. Process the collected data of the longitudinal exploration area according to the steps of zero point correction, filtering and denoising, gain adjustment, etc., so as to obtain the ground penetrating radar profile; and derive the processing parameters of the first group of data to form a batch processing file, and batch process the remaining data according to the processing parameters of the batch processing file, so as to obtain the ground penetrating radar images of all longitudinal exploration systems;

[0018] 7. Based on the image waveform and amplitude characteristics of each longitudinal ground penetrating radar survey line, the abnormal area is circled.

[0019] (III) Beneficial effects

[0020] The utility model provides a dam ant nest ground penetrating radar longitudinal exploration system, which has the following beneficial effects:

[0021] 1. The dam ant nest ground penetrating radar longitudinal exploration system has strong suitability for dam site conditions and is easy to operate on site. The combination of multiple survey lines has significantly improved the results of conventional two-dimensional ground penetrating radar, and effectively avoided the shortcomings of conventional three-dimensional radar equipment that is bulky and difficult to carry out detection work on the dam;

[0022] 2. The dam ant nest ground penetrating radar longitudinal exploration system, based on the on-site survey, explores and divides the termite hazard areas, and reasonably arranges the measurement lines and points on the upstream and downstream dam slopes, which improves the orderliness of the detection and achieves the effect of precise inspection of the ant nest;

[0023] 3. The dam ant nest ground-penetrating radar longitudinal exploration system improves the accuracy of ant nest detection on the downstream dam slope through refined detection of ant nests on dams at different elevations. It can intuitively outline the spatial structure of the ant nest based on the abnormal signals and wave velocity characteristics of the radar waves, thus realizing three-dimensional refined exploration of ant nests on dams. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a data acquisition flow chart of a utility model of a dam ant nest ground penetrating radar longitudinal exploration system;

[0025] Figure 2 It is a flow chart of detection data processing for the utility model longitudinal exploration system;

[0026] Figure 3This is a diagram of the interpretation process of a utility model of a longitudinal exploration system of ant nests in dams using ground penetrating radar;

[0027] Figure 4 This is a schematic diagram of the exploration zoning of the utility model ant nest ground penetrating radar;

[0028] Figure 5 This is the distribution map of measuring points for the utility model ground penetrating radar with integrated transmitter and receiver.

[0029] In the figure: 1. Dam top; 2. Upstream dam slope; 3. Downstream dam slope; 4. Water level; 6. Ant nest area; 8. Ground penetrating radar longitudinal exploration area; 10. Longitudinal ground penetrating radar survey line; 13. Transceiver measuring point; 16. Ground penetrating radar host; 19. Radar electromagnetic wave; 20. Transceiver cable; 21. Transceiver antenna; 23. Abnormal electromagnetic wave waveform area. DETAILED DESCRIPTION

[0030] The utility model provides a dam ant nest ground penetrating radar longitudinal exploration system, such as Figure 1-5 As shown, it includes a ground penetrating radar host 16, an integrated transceiver antenna 21 and an integrated transceiver cable 20. The integrated transceiver antenna 21 is connected to the ground penetrating radar host 16 via the integrated transceiver cable 20. The integrated transceiver antenna 21 is arranged at the integrated transceiver measuring point 13. The spacing between the integrated transceiver measuring points 13 is 0.1m. The longitudinal exploration system is arranged on the downstream dam slope 3. The ground penetrating radar host 16, the integrated transceiver antenna 21 and the integrated transceiver cable 20 keep moving synchronously during use.

[0031] The specific implementation steps of the vertical exploration system of the utility model are as follows:

[0032] 1. Through on-site investigation of the current situation of termites on the dam and the infested project area, the scope of the longitudinal exploration area 8 of the ant nest ground penetrating radar is determined according to the characteristics and location of the termite traces on the ground and the ground indicators of the dead nest;

[0033] Second, according to the length and width of the longitudinal exploration area and the height of the dam, the longitudinal exploration area is divided into a plurality of longitudinal ground penetrating radar survey lines 10, and according to the detection accuracy, a plurality of transceiver integrated measurement points 13 are divided on the longitudinal ground penetrating radar survey line 10 of the downstream dam slope 3;

[0034] 3. Arrange the transceiver integrated antenna 21 on the transceiver integrated measuring point 13, connect the transceiver integrated antenna 21 to the ground penetrating radar host 16 by using the transceiver integrated cable 20, start the ground penetrating radar host 16, and set the project file, survey line name, antenna type, transmission frequency, sampling interval, acquisition time, filter range, gain category and other parameters on the ground penetrating radar host 16;

[0035] Fourth, the data collection work is implemented through the collection button on the ground penetrating radar host 16, and the integrated transmitting and receiving antenna 21 is arranged on the longitudinal ground penetrating radar survey line 10 of the downstream dam slope 3 in turn according to the agreed detection position and movement direction, so as to complete the collection of data of all measuring points on the longitudinal ground penetrating radar survey line 10;

[0036] 5. After completing all the collection of a group, complete the collection of all survey line data in the longitudinal exploration area according to steps 3 and 4.

[0037] 6. Process the collected data of the longitudinal exploration area according to the steps of zero point correction, filtering and denoising, gain adjustment, etc., so as to obtain the ground penetrating radar profile; and derive the processing parameters of the first group of data to form a batch processing file, and batch process the remaining data according to the processing parameters of the batch processing file, so as to obtain the ground penetrating radar images of all longitudinal exploration systems;

[0038] 7. Based on the image waveform and amplitude characteristics of each longitudinal ground penetrating radar survey line 10, the abnormal area is circled.

[0039] Working principle: The specific technical route of the dam ant nest ground penetrating radar longitudinal exploration system is as follows:

[0040] (1) Through on-site investigation of the current status of termites on the dam crest 1, upstream dam slope 2, and downstream dam slope 3 and the termite-infested engineering area, the scope and depth of the ant nest exploration area are determined according to the characteristics and positions of the termite traces on the surface and the ground indicators of the dead nest. The ant nest exploration area is parallel to the axial direction of the dam, and the scope of the ant nest ground penetrating radar longitudinal exploration area 8 is determined;

[0041] (2) dividing the ground penetrating radar longitudinal exploration area 8 into a plurality of groups of longitudinal ground penetrating radar measuring lines 10 at certain intervals, each group of longitudinal ground penetrating radar measuring lines 10 is divided into a plurality of measuring points at different intervals, and the longitudinal ground penetrating radar measuring lines 10 are divided into a plurality of transceiver integrated measuring points 13;

[0042] (3) starting the ground penetrating radar host 16, and setting parameters such as project files, survey line name, antenna type, transmission frequency, sampling interval, acquisition time, filter range, gain category, etc. on the ground penetrating radar host 16;

[0043] (4) Data collection is performed through the collection button on the ground penetrating radar host 16 to complete the collection of data of all survey lines and survey points in the exploration area, and a set of data collected in the longitudinal exploration area is processed according to the steps of zero point correction, filtering and denoising, gain adjustment, etc., so as to obtain a ground penetrating radar profile; and the processing parameters of the first set of data are exported to form a batch processing file, and the remaining data are batch processed according to the processing parameters of the batch processing file, so as to obtain the ground penetrating radar images of all longitudinal exploration systems;

[0044] (5) In the GPR longitudinal exploration area 8, the demarcated GPR anomaly area is marked on the survey line, thereby forming a collection of anomaly areas on different survey lines;

[0045] (6) Finally, the area with a high number of overlaps in the abnormal area is inferred to be the ant nest area 6, thereby achieving accurate detection of ant infestation on the back slope and inside the dam body.

[0046] In summary,

[0047] 1. The dam ant nest ground penetrating radar longitudinal exploration system has strong suitability for dam site conditions and is easy to operate on site. The combination of multiple survey lines has significantly improved the results of conventional two-dimensional ground penetrating radar, and effectively avoided the shortcomings of conventional three-dimensional radar equipment that is bulky and difficult to carry out detection work on the dam;

[0048] 2. The dam ant nest ground penetrating radar longitudinal exploration system, based on the on-site survey, explores and divides the termite hazard areas, and reasonably arranges the survey lines and points on the upstream and downstream dam slopes 3, which improves the orderliness of the detection and achieves the effect of precise inspection of the ant nest;

[0049] 3. The dam ant nest ground penetrating radar longitudinal exploration system improves the ant nest detection accuracy of the downstream dam slope 3 through the refined detection of ant nests at different elevations of the dam; according to the abnormal signals and wave velocity characteristics of the radar waves, the spatial structure of the ant nest can be intuitively outlined, realizing the three-dimensional refined exploration of the dam ant nest.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dam ant nest ground penetrating radar longitudinal exploration system, applied to the ground penetrating radar longitudinal exploration area, the ground penetrating radar longitudinal exploration area is provided with a plurality of longitudinal ground penetrating radar survey lines, the longitudinal ground penetrating radar survey lines are provided with a plurality of transceiver integrated measurement points, characterized in that: The longitudinal exploration system includes a ground penetrating radar host, an integrated transceiver antenna and an integrated transceiver cable. The longitudinal exploration system and the integrated transceiver antenna are connected to the ground penetrating radar host via the integrated transceiver cable. The integrated transceiver antenna is arranged in sequence at the integrated transceiver measuring points, and the spacing between the integrated transceiver measuring points is 0.1m.

2. The dam ant nest ground penetrating radar longitudinal exploration system according to claim 1, characterized in that: The longitudinal exploration system is arranged on the downstream dam slope.

3. The dam ant nest ground penetrating radar longitudinal exploration system according to claim 1, characterized in that: The ground penetrating radar host, the integrated transceiver antenna and the integrated transceiver cable keep moving synchronously during use.

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