Foundation pit floor construction quality detection device and method based on geological radar

Abstract

The invention discloses a foundation pit floor construction quality detection device and method based on geological radar, and relates to the technical field of foundation pit detection, the foundation pit floor construction quality detection device comprises a detection assembly, a first moving assembly and a second moving assembly, the first moving assembly is located in front of the detection assembly, and the second moving assembly is located behind the detection assembly; wherein each of the first moving assembly and the second moving assembly comprises a moving body, a frame body mounted on the moving body and a first winding and unwinding wheel mounted on the frame body, the first winding and unwinding wheel is used for winding and unwinding a first rope body, and the first rope body is connected to the first moving assembly; wherein the detection assembly comprises a vehicle frame on which a shell is fixed, and a geological radar is arranged in the shell; one end of each wheel arm is rotationally arranged on the frame, and the other end of each wheel arm is provided with a wheel body; and the damping control assembly is arranged on the shell and used for retracting and releasing the wheel arm and providing damping for the wheel body.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit detection, and in particular to a device and method for detecting the construction quality of a foundation pit floor based on geological radar. Background Art

[0002] In railway projects, the inspection of foundation pit floor construction quality is a key link to ensure the safety and quality of the project. However, traditional inspection methods often have many shortcomings when facing the complex and changeable foundation pit environment, which limits the further improvement of inspection efficiency and accuracy. The surface of the foundation pit floor often has different degrees of unevenness such as convexity and concave. These unevenness not only increase the difficulty of the inspection process, but also may cause damage to the inspection device. Traditional inspection technology often lacks effective shock absorption and obstacle avoidance mechanisms, and it is difficult to adapt to such terrain conditions, resulting in reduced inspection accuracy.

[0003] Therefore, it is necessary to develop a foundation pit floor construction quality detection device and method based on geological radar to solve the above problems. Summary of the invention

[0004] To solve the above problems, the present invention provides the following technical solutions: a foundation pit floor construction quality detection device based on geological radar, comprising a detection component, a first moving component and a second moving component, wherein the first moving component is located in front of the detection component, and the second moving component is located behind the detection component;

[0005] The first moving assembly and the second moving assembly each include a moving body, a frame mounted on the moving body, and a first retractable wheel mounted on the frame, wherein the first retractable wheel is used to retract a first rope, and the first rope is connected to the first moving assembly;

[0006] Wherein, the detection component includes:

[0007] A vehicle frame, on which a shell is fixed, wherein a geological radar is arranged in the shell;

[0008] Four wheel arms distributed in a rectangular shape, one end of which is rotatably arranged on the frame, and the other end of which is provided with a wheel body;

[0009] A shock absorption control component is arranged on the shell and is used for retracting and releasing the wheel arm and providing shock absorption for the wheel body.

[0010] Furthermore, preferably, a visual sensor is also installed on the frame of the first movable component, and the visual sensor is used to distinguish the surface condition of the foundation pit floor in front of the first movable component. When there is a protrusion on the surface of the foundation pit floor in front of the first movable component and the height of the protrusion is less than the first height, the detection component keeps moving.

[0011] Further, preferably, when there is a protrusion on the surface of the pit floor in front of the first moving component and the height of the protrusion is greater than or equal to the first height, or when there is a depression on the surface of the pit floor in front of the first moving component, the detection component remains stationary, and the first moving component passes over the protrusion or depression, and the first moving component and the second moving component jointly support and move the detection component through the first rope body to make it pass over the protrusion or depression, and the wheel arm of the detection component remains stowed.

[0012] Further, preferably, the height of the first retractable wheel is higher than the height of the detection component.

[0013] Furthermore, preferably, a second retracting wheel is fixed on the frame, and the second retracting wheel is used for retracting and releasing a second rope body, and the second rope body is connected to the first moving component in a horizontal state.

[0014] Further, preferably, the shock absorption control component comprises:

[0015] A vibration-damping filter, one end of which is hinged to the wheel arm and the other end of which is rotatably connected to a rotating shaft;

[0016] A guide arc rod, which is fixed on the housing and is used for sliding connection with the rotating shaft, and the central axis of the guide arc rod coincides with the rotation center axis of the wheel arm;

[0017] The shock absorbing adjuster has one end hinged to the shell and the other end hinged to the rotating shaft.

[0018] Further, preferably, the shock absorbing adjuster comprises:

[0019] A cylinder body having a chamber in which a limit ring is embedded;

[0020] A piston rod, one end of which is sealed and slidably extended into the chamber, and the other end of which extends out of the chamber;

[0021] A return spring connected between the piston rod and the cylinder body;

[0022] The chamber is also provided with an air control hole, which is connected to an external air pump. The shock absorber adjuster can be contracted by injecting air into the air control hole.

[0023] Further, preferably, the damping filter forms a first angle A with the vertical line, and the first angle A is 15°-25°.

[0024] A method for detecting the construction quality of foundation pit floor based on geological radar comprises the following steps:

[0025] S1. Install the first movable assembly and the second movable assembly in front and rear of the detection assembly respectively to ensure that the first rope is firmly connected;

[0026] S2. Start the detection device, and the first moving component and the second moving component start to move;

[0027] S3. The visual sensor starts to work and distinguishes the surface condition of the foundation pit floor in front of the first moving assembly in real time;

[0028] S4. If the surface of the foundation pit floor in front of the first moving component is flat or has a protrusion less than the first height, the detection component keeps moving normally, and the geological radar continues to perform construction quality detection;

[0029] S5. If there is a protrusion greater than or equal to the first height on the surface of the foundation pit floor in front of the first moving assembly, the detection assembly stops moving, and the first moving assembly passes over the protrusion or depression, and the first moving assembly and the second moving assembly jointly support and move the detection assembly through the first rope body to make it pass over the protrusion or depression, and the wheel arm of the detection assembly remains stored;

[0030] S6. If there is a depression on the foundation pit floor surface in front of the first moving assembly, the detection assembly stops moving, and the first moving assembly passes over the protrusion or depression, and the first moving assembly and the second moving assembly jointly support and move the detection assembly through the first rope body to make it pass over the protrusion or depression, and the wheel arm of the detection assembly remains stored;

[0031] S7. The data collected by the geological radar is recorded in real time and transmitted to the data processing system;

[0032] S8. Analyze the collected data to evaluate the construction quality of the foundation pit floor and identify potential problems or defects.

[0033] Compared with the prior art, the present invention provides a foundation pit floor construction quality detection device and method based on geological radar, which has the following beneficial effects:

[0034] In the present invention, during the detection process, the main function of the shock absorption control component is to reduce the vibration caused by the uneven ground (such as small bumps), so as to maintain the stability of the geological radar. In addition, through the obstacle crossing mechanism, the detection component can maintain a constant detection distance between the geological radar and the foundation pit floor, which ensures that the geological radar can continue to detect with high precision without being disturbed by the uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a foundation pit floor construction quality detection device based on geological radar;

[0036] Figure 2 It is a structural schematic diagram of a first moving component in a foundation pit floor construction quality detection device based on geological radar;

[0037] Figure 3 It is a structural schematic diagram of a detection component in a foundation pit floor construction quality detection device based on geological radar;

[0038] Figure 4 It is a schematic diagram of a partial three-dimensional structure of a detection component in a foundation pit floor construction quality detection device based on geological radar;

[0039] Figure 5 It is a structural schematic diagram of a shock-absorbing regulator in a foundation pit floor construction quality detection device based on geological radar;

[0040] In the figure: A, first angle; 1, detection component; 2, first moving component; 3, second moving component; 4, moving body; 5, frame; 6, first retracting and extending wheel; 7, second retracting and extending wheel; 8, visual sensor; 11, frame; 12, shell; 13, lifting ring; 14, wheel arm; 15, wheel body; 16, shock absorbing filter; 17, rotating shaft; 18, guide arc rod; 19, shock absorbing adjuster; 191, cylinder body; 192, piston rod; 193, limit ring; 194, reset spring. DETAILED DESCRIPTION

[0041] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0042] Example: Please refer to Figure 1-Figure 5 In an embodiment of the present invention, a foundation pit floor construction quality detection device based on geological radar is provided, comprising a detection component 1, a first moving component 2 and a second moving component 3, wherein the first moving component 2 is located in front of the detection component 1, and the second moving component 3 is located behind the detection component 1;

[0043] The first moving assembly 2 and the second moving assembly 3 each include a moving body 4, a frame 5 mounted on the moving body 4, and a first retracting wheel 6 mounted on the frame 5, wherein the first retracting wheel 6 is used to retract a first rope body, and the first rope body is connected to the first moving assembly 2;

[0044] Wherein, the detection component 1 comprises:

[0045] A frame 11, on which a housing 12 is fixed, wherein a geological radar is arranged in the housing 12;

[0046] Four wheel arms 14 are arranged in a rectangular shape, one end of which is rotatably arranged on the frame 11, and the other end of which is provided with a wheel body 15;

[0047] The shock absorbing control assembly is disposed on the housing 12 and is used for retracting and releasing the wheel arm 14 and providing shock absorption for the wheel body 15 .

[0048] During implementation, the geological radar is activated to emit high-frequency electromagnetic wave signals, which penetrate the foundation pit floor and reflect when encountering different media (such as soil, rock, steel bars, etc.). The reflected signal is received and processed by the geological radar. By analyzing the amplitude, wave velocity and waveform characteristics of the reflected wave, the construction quality of the foundation pit floor can be judged, including soil thickness, density, water content, cracks, deformation, etc.

[0049] In this embodiment, a visual sensor 8 is also installed on the frame 5 of the first movable component 2. The visual sensor 8 is used to distinguish the surface condition of the foundation pit floor in front of the first movable component 2. When there is a protrusion on the surface of the foundation pit floor in front of the first movable component 2 and the height of the protrusion is less than the first height, the detection component 1 keeps moving.

[0050] In addition, when there is a protrusion on the surface of the foundation pit floor in front of the first moving component 2, and the height of the protrusion is greater than or equal to the first height, or when there is a depression on the surface of the foundation pit floor in front of the first moving component 2, the detection component 1 remains stationary, and the first moving component 2 passes over the protrusion or depression. Moreover, the first moving component 2 and the second moving component 3 jointly support and move the detection component 1 through the first rope body so that it passes over the protrusion or depression, and at the same time, the wheel arm 14 of the detection component 1 remains stored.

[0051] During the detection process, the main function of the shock-absorbing control component is to reduce the vibration caused by uneven ground (such as small bumps) to maintain the stability of the geological radar. When encountering smaller bumps, the shock-absorbing control component can effectively absorb the impact caused by these bumps, so that the bottom height of the frame 11 remains unchanged, ensuring that the geological radar maintains a constant detection distance with the foundation pit floor, thereby ensuring the detection accuracy.

[0052] However, when the height of the protrusion is high, the shock absorption control assembly may not be able to completely filter these protrusions, causing the frame 11 to be forced to rise. In this case, the height of the geological radar will change, which may affect the detection accuracy. In order to cope with this situation, the detection device is designed with a mechanism so that when a higher protrusion or depression is detected, special measures can be taken to maintain the detection accuracy.

[0053] When a higher protrusion or depression is detected, the first moving assembly 2 and the second moving assembly 3 will support and move the detection assembly 1 through the first rope body so that it can smoothly cross these obstacles. In this process, the wheel arm 14 of the detection assembly 1 will remain in a storage state to ensure that the wheel body 15 does not contact the protrusion.

[0054] Through this obstacle crossing mechanism, the detection component 1 can maintain a constant detection distance between the geological radar and the foundation pit floor, which ensures that the geological radar can continue to detect with high precision without being disturbed by the unevenness of the ground.

[0055] As a preferred embodiment, the height of the first retractable wheel 6 is higher than the height of the detection component 1 .

[0056] In this embodiment, a second retracting wheel 7 is fixed to the frame 5 , and the second retracting wheel 7 is used to retract and release the second rope body, and the second rope body is connected to the first moving component 2 in a horizontal state.

[0057] The second retractable wheel 7 is responsible for retracting and releasing the second rope body, and the second rope body is connected to the first moving component 2 in a horizontal state. This horizontal connection method provides an additional support point for the detection component 1;

[0058] The first moving component 2 and the second moving component 3 provide support and mobility in the front and rear directions for the detection component 1 through their respective first rope bodies, while the second rope bodies provide additional lateral stability for the detection component 1 through horizontal connection. This three-dimensional support and movement mechanism enables the detection component 1 to move flexibly in various complex environments and maintain a stable detection posture.

[0059] In this embodiment, the shock absorption control component includes:

[0060] A damping filter 16, one end of which is hinged to the wheel arm 14, and the other end of which is rotatably connected to a rotating shaft 17;

[0061] A guide arc rod 18, which is fixed on the housing 12 and is used for sliding connection with the rotating shaft 17, and the central axis of the guide arc rod 18 coincides with the rotation central axis of the wheel arm 14;

[0062] The shock absorbing adjuster 19 has one end hinged to the housing 12 and the other end hinged to the rotating shaft 17 .

[0063] In addition, the damping adjuster 19 comprises:

[0064] The cylinder body 191 has a chamber in which a limit ring 193 is embedded;

[0065] A piston rod 192, one end of which is sealingly slidably extended into the chamber and the other end of which extends out of the chamber;

[0066] a return spring 194 connected between the piston rod 192 and the cylinder 191;

[0067] The chamber is also provided with an air control hole, which is connected to an external air pump. By injecting air into the air control hole, the shock absorber adjuster 19 can be contracted.

[0068] The vibration-absorbing filter 16 mainly functions to absorb the vibration generated by the irregular terrain encountered by the wheel body 15 during its rotation.

[0069] One end of the damping filter 16 is hinged to the wheel arm 14 so that the damping filter 16 can move with the up and down movement of the wheel arm. The other end is rotatably connected to a rotating shaft 17 which slides on a guide arc rod 18 to guide the movement trajectory of the damping filter 16.

[0070] When the wheel body 15 encounters a convexity or concaveness during rolling, the shock filter 16 first absorbs part of the vibration. Then, the remaining vibration is transmitted to the shock adjuster 19 through the sliding connection between the rotating shaft 17 and the guide arc rod 18. The piston rod 192 in the shock adjuster 19 slides in the chamber under the action of vibration, compressing or stretching the return spring 194, which can further adapt to the current vibration situation.

[0071] In addition, there is a first angle A between the damping filter 16 and the vertical line, and the first angle A is 15°-25°.

[0072] In this angle range, the connection between the damping filter 16 and the damping adjuster 19 can maintain a good transmission effect, that is, the damping adjuster 19 can drive the damping filter 16 to deflect with a small force.

[0073] That is to say, the air control hole is connected to an external air pump, and the shock absorbing adjuster 19 can be contracted by injecting air into the air control hole, thereby driving the shock absorbing filter 16 to deflect, so as to achieve the storage of the wheel body 15 .

[0074] A method for detecting the construction quality of foundation pit floor based on geological radar comprises the following steps:

[0075] S1. Install the first movable assembly 2 and the second movable assembly 3 in front and rear of the detection assembly 1 to ensure that the first rope is firmly connected;

[0076] S2. Start the detection device 1, the first moving component 2 and the second moving component 3 start to move;

[0077] S3. The visual sensor 8 starts working to distinguish the surface of the foundation pit floor in front of the first moving component 2 in real time;

[0078] S4. If the surface of the foundation pit floor in front of the first moving component 2 is flat or has a protrusion less than the first height, the detection component 1 keeps moving normally, and the geological radar continues to perform construction quality detection;

[0079] S5. If there is a protrusion greater than or equal to the first height on the surface of the foundation pit floor in front of the first moving component 2, the detection component 1 stops moving, and the first moving component 2 passes over the protrusion or depression, and the first moving component 2 and the second moving component 3 jointly support and move the detection component 1 through the first rope body so that it passes over the protrusion or depression, and the wheel arm 14 of the detection component 1 remains stored;

[0080] S6. If there is a depression on the foundation pit floor surface in front of the first moving component 2, the detection component 1 stops moving, and the first moving component 2 passes over the protrusion or depression, and the first moving component 2 and the second moving component 3 jointly support and move the detection component 1 through the first rope body so that it passes over the protrusion or depression, and the wheel arm 14 of the detection component 1 remains stored;

[0081] S7. The data collected by the geological radar is recorded in real time and transmitted to the data processing system;

[0082] S8. Analyze the collected data to evaluate the construction quality of the foundation pit floor and identify potential problems or defects.

[0083] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foundation pit floor construction quality detection device based on geological radar, characterized in that: The invention comprises a detection component (1), a first movable component (2) and a second movable component (3), wherein the first movable component (2) is located in front of the detection component (1), and the second movable component (3) is located behind the detection component (1); The first moving assembly (2) and the second moving assembly (3) both comprise a moving body (4), a frame (5) mounted on the moving body (4), and a first retracting wheel (6) mounted on the frame (5), wherein the first retracting wheel (6) is used for retracting a first rope, and the first rope is connected to the first moving assembly (2); Wherein, the detection component (1) comprises: A vehicle frame (11) on which a housing (12) is fixed, wherein a geological radar is arranged in the housing (12); Four wheel arms (14) distributed in a rectangular shape, one end of which is rotatably arranged on the vehicle frame (11) and the other end of which is provided with a wheel body (15); A shock absorption control component is arranged on the housing (12) and is used for retracting and releasing the wheel arm (14) and providing shock absorption for the wheel body (15).

2. The foundation pit floor construction quality detection device based on geological radar according to claim 1 is characterized in that: A visual sensor (8) is also installed on the frame (5) of the first movable component (2), and the visual sensor (8) is used to distinguish the surface condition of the foundation pit floor in front of the first movable component (2). When there is a protrusion on the surface of the foundation pit floor in front of the first movable component (2), and the height of the protrusion is less than the first height, the detection component (1) keeps moving.

3. The foundation pit floor construction quality detection device based on geological radar according to claim 2 is characterized in that: When there is a protrusion on the surface of the foundation pit floor in front of the first moving component (2), and the height of the protrusion is greater than or equal to the first height, or when there is a depression on the surface of the foundation pit floor in front of the first moving component (2), the detection component (1) remains stationary, and the first moving component (2) passes over the protrusion or depression. In addition, the first moving component (2) and the second moving component (3) jointly support and move the detection component (1) through the first rope body so that it passes over the protrusion or depression, and at the same time, the wheel arm (14) of the detection component (1) remains stored.

4. The foundation pit floor construction quality detection device based on geological radar according to claim 1 is characterized by: The height of the first retractable wheel (6) is higher than the height of the detection component (1).

5. The foundation pit floor construction quality detection device based on geological radar according to claim 1 is characterized in that: A second retracting wheel (7) is also fixed on the frame (5), and the second retracting wheel (7) is used to retract and release a second rope body, and the second rope body is connected to the first moving component (2) in a horizontal state.

6. The foundation pit floor construction quality detection device based on geological radar according to claim 1 is characterized in that: The shock absorption control component comprises: A vibration-damping filter (16), one end of which is hinged to the wheel arm (14) and the other end of which is rotatably connected to a rotating shaft (17); A guide arc rod (18) fixed on the housing (12) and used for sliding connection with the rotating shaft (17), and the central axis of the guide arc rod (18) coincides with the rotational central axis of the wheel arm (14); A shock absorbing adjuster (19) has one end hinged to the housing (12) and the other end hinged to the rotating shaft (17).

7. The foundation pit floor construction quality detection device based on geological radar according to claim 6 is characterized by: The shock absorbing adjuster (19) comprises: A cylinder body (191) having a chamber in which a limit ring (193) is embedded; A piston rod (192), one end of which is sealingly slidably extended into the chamber and the other end of which extends out of the chamber; A return spring (194) connected between the piston rod (192) and the cylinder body (191); The chamber is also provided with an air control hole, which is connected to an external air pump. By injecting air into the air control hole, the shock absorbing adjuster (19) can be contracted.

8. The foundation pit floor construction quality detection device based on geological radar according to claim 6 is characterized by: The damping filter (16) has a first angle A with the vertical line, and the first angle A is 15°-25°.

9. A method for detecting the construction quality of foundation pit floor based on geological radar, which adopts the device for detecting the construction quality of foundation pit floor based on geological radar as claimed in any one of claims 3 to 8, characterized in that: The steps include: S1. Install the first moving assembly (2) and the second moving assembly (3) in front of and behind the detection assembly (1) respectively to ensure that the first rope body is firmly connected; S2. The detection device (1) is started, and the first moving component (2) and the second moving component (3) begin to move; S3. The visual sensor (8) starts to work and distinguishes the surface of the foundation pit floor in front of the first moving component (2) in real time; S4. If the surface of the foundation pit floor in front of the first moving component (2) is flat or there is a protrusion less than the first height, the detection component (1) maintains normal movement, and the geological radar continues to perform construction quality detection; S5. If there is a protrusion greater than or equal to the first height on the surface of the foundation pit floor in front of the first moving component (2), the detection component (1) stops moving, and the first moving component (2) passes over the protrusion or depression, and the first moving component (2) and the second moving component (3) jointly support and move the detection component (1) through the first rope body so that it passes over the protrusion or depression, and at the same time, the wheel arm (14) of the detection component (1) remains stored; S6. If there is a depression on the surface of the foundation pit floor in front of the first moving component (2), the detection component (1) stops moving, and the first moving component (2) passes over the protrusion or depression, and the first moving component (2) and the second moving component (3) jointly support and move the detection component (1) through the first rope body so that it passes over the protrusion or depression, and the wheel arm (14) of the detection component (1) remains stored; S7. The data collected by the geological radar is recorded in real time and transmitted to the data processing system; S8. Analyze the collected data to evaluate the construction quality of the foundation pit floor and identify potential problems or defects.

Images