Intelligent sounding device for testing the bearing capacity of a ground

Abstract

The utility model discloses a kind of intelligent sounding devices for testing ground bearing capacity in the technical field of sounding device, including frame, and for carrying the mobile car body of frame, further include, probe rod, for impacting ground surface to detect ground bearing capacity and form penetration hole;Multiple monitoring rods are uniformly distributed to the two sides of the probe rod along the circumference, for inserting into penetration hole to continuously monitor ground state change;Conversion mechanism is located in the frame, for bearing the probe rod and multiple monitoring rods, and drive each monitoring rod rotates to the directly above of corresponding penetration hole in turn, the conversion mechanism includes arc guide plate, and driving mechanism for driving arc guide plate rotation.This device integrates penetration test and state monitoring, high degree of automation, suitable for large-area ground investigation scene, improve investigation efficiency and data integrity.

Description

Technical Field

[0001] This utility model relates to the field of penetrometer technology, specifically to an intelligent penetrometer for testing the bearing capacity of foundations. Background Technology

[0002] Foundation bearing capacity is a key indicator for measuring foundation stability and engineering safety, and is widely used in civil engineering fields such as highways, railways, airports, dams, and industrial and civil buildings. It is generally assessed by driving a probe into the foundation using a penetration tester, and then evaluating the foundation's bearing capacity based on parameters such as penetration depth and number of blows.

[0003] However, existing penetrometers are mainly used for one-time penetration tests and lack the ability to monitor changes in the state of the foundation in a short period of time (such as several weeks). Currently, penetration testing and state monitoring are usually done by different equipment, resulting in problems such as separation of operations and low efficiency. When conducting continuous penetration operations, existing penetrometers rely on high-precision positioning systems such as GPS and RTK to determine the location of the penetration point in order to achieve path planning and distance measurement. However, in urban underground spaces, mountainous areas, forests and other areas with limited or blocked signals, traditional positioning methods are difficult to work accurately, which restricts equipment operation and affects the exploration progress.

[0004] To address these issues, an intelligent penetrometer for testing foundation bearing capacity is provided. Utility Model Content

[0005] The purpose of this invention is to provide an intelligent penetrometer for testing the bearing capacity of foundations, which solves the problem that existing penetrometers are mainly used for one-time penetration tests, lack the ability to monitor changes in the state of the foundation in a short period of time, and have low detection efficiency.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A smart penetrometer for testing the bearing capacity of foundations includes a frame and a mobile vehicle for mounting the frame, and also includes...

[0008] A probe is used to impact the ground surface to test the bearing capacity of the foundation and to create a penetration hole.

[0009] Multiple monitoring rods are evenly distributed on both sides of the probe along the circumference, and are used to be inserted into the penetration hole to continuously monitor changes in the foundation condition;

[0010] A conversion mechanism, located within the frame, is used to support the probe and multiple monitoring rods, and to drive each monitoring rod to rotate sequentially to directly above the corresponding penetration hole. The conversion mechanism includes an arc-shaped guide plate and a drive mechanism for driving the arc-shaped guide plate to rotate.

[0011] An insertion and removal mechanism, provided on the frame, is used to press the monitoring rod located directly above the penetration hole into the penetration hole or to pull out the monitoring rod that has been inserted into the foundation.

[0012] The distance measuring component is used to measure the distance between the frame and the monitoring rod in the previous penetration hole to determine the current penetration position.

[0013] As a further optimization of this utility model, the arc-shaped guide plate is configured as a magnetic attraction component, and the probe rod and multiple monitoring rods are all magnetically connected to the arc-shaped guide plate; the arc-shaped guide plate is provided with a guide hole for the probe rod to pass through, and a first notch groove for the monitoring rod to pass through.

[0014] As a further optimization of this utility model, the bottom of the frame's base plate is provided with multiple adjustable support legs, the top of the frame's base plate is provided with a support platform, and the arc-shaped guide plate is rotatably mounted on the support platform.

[0015] As a further optimization of this utility model, the top of the monitoring rod is provided with an electrical box, the top of the electrical box is provided with a push-button switch for controlling the state of the components inside the electrical box, and a second electromagnet; the bottom of the monitoring rod is provided with a monitoring unit.

[0016] As a further optimization of this utility model, the monitoring rod is interference-fitted with the penetration hole.

[0017] As a further optimization of this utility model, the insertion and removal mechanism includes a linear drive for pushing the monitoring rod to move vertically; the movable end of the linear drive is provided with a first electromagnet that cooperates with the second electromagnet.

[0018] As a further optimization of this utility model, the insertion and removal mechanism further includes a translation unit for moving the linear drive member directly above the insertion hole. The translation unit includes a mounting plate fixed on the frame, a first wedge block, and a second wedge block that cooperates with the first wedge block. A movable rod is provided through the mounting plate. The first wedge block is fixed at the end of the movable rod. A spring is sleeved on the movable rod between the first wedge block and the mounting plate. The linear drive member is fixed on the first wedge block by a bracket. The second wedge block is fixed on the arc-shaped guide plate by a support rod.

[0019] As a further optimization of this utility model, the mobile vehicle body is provided with a second notch for the monitoring rod to pass through. The second notch has a V-shaped structure and is used to correct the posture of the monitoring rod during the pulling out process. The bottom plate of the frame is provided with a third notch that is aligned with the second notch.

[0020] As a further optimization of this utility model, the distance-fixing component includes multiple distance sensors mounted on the frame, and a reflector that matches the distance sensors; the reflector is arranged around the periphery of the electrical box.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This utility model integrates penetration testing and status monitoring into one unit. It adopts an arc-shaped guide plate and a circumferentially distributed structure of multiple monitoring rods to achieve efficient coordination between the probe rod and the monitoring rod. Through the cooperation of the multiple monitoring rod structure and the insertion and extraction mechanism, dynamic and continuous monitoring of the internal status of the penetration hole can be achieved. It has a high degree of automation and is suitable for large-area foundation exploration scenarios, improving exploration efficiency and data integrity.

[0023] 2. In this utility model, the distance-fixing component, through the cooperation of a distance sensor and a reflector, can quickly measure the distance between the penetrometer and the monitoring rod that has been inserted into the foundation, supports continuous penetration operations, and is a low-cost distance-fixing component suitable for areas with weak signals. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the arc-shaped guide plate, monitoring rod, and drive mechanism of this utility model. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the arc-shaped guide plate, monitoring rod, and drive mechanism of this utility model. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the insertion and removal mechanism of this utility model.

[0028] In the picture:

[0029] 1. Frame; 101. Adjustable support leg; 102. Support platform; 2. Moving vehicle body; 201. Second notch slot; 3. Arc-shaped guide plate; 301. Guide hole; 302. First notch slot; 4. Probe rod; 5. Monitoring rod; 501. Electrical box; 502. Second electromagnet; 503. Push-button switch; 504. Monitoring unit; 6. Drive mechanism; 601. Arc-shaped rack; 602. Gear; 603. Motor; 7. Insertion and removal mechanism; 701. First wedge block; 702. Second wedge block; 703. Linear drive component; 704. First electromagnet; 705. Movable rod; 706. Mounting plate; 707. Spring; 8. Distance fixing component; 801. Distance sensor; 802. Reflector. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] Example 1

[0032] To address the issue that existing penetrometers are primarily used for one-time penetration tests and lack the ability to monitor short-term changes in the foundation's condition, resulting in low detection efficiency, please refer to [the relevant documentation / reference]. Figures 1-4 The present invention provides an intelligent penetrometer for testing the bearing capacity of a foundation, comprising a frame 1 and a mobile vehicle 2 for mounting the frame 1, and further comprising:

[0033] Probe 4 is used to impact the foundation surface to test the foundation bearing capacity and form a penetration hole;

[0034] Multiple monitoring rods 5 are evenly distributed on both sides of the probe 4 along the circumference, and are used to be inserted into the penetration hole to continuously monitor changes in the foundation condition;

[0035] The conversion mechanism, located within the frame 1, is used to support the probe rod 4 and multiple monitoring rods 5, and to drive each monitoring rod 5 to rotate sequentially to the top of the corresponding penetration hole. The conversion mechanism includes an arc-shaped guide plate 3 and a drive mechanism 6 for driving the arc-shaped guide plate 3 to rotate.

[0036] The insertion and removal mechanism 7, located on the frame 1, is used to press the monitoring rod 5 located directly above the penetration hole into the penetration hole or to pull out the monitoring rod 5 that has been inserted into the foundation.

[0037] The arc-shaped guide plate 3 is a magnetic attraction component, and the probe rod 4 and multiple monitoring rods 5 are all magnetically connected to the arc-shaped guide plate 3. The arc-shaped guide plate 3 is provided with a guide hole 301 for the probe rod 4 to pass through, and a first notch 302 for the monitoring rod 5 to pass through.

[0038] The bottom of the base plate of frame 1 is provided with multiple adjustable support legs 101 for adjusting the overall horizontal attitude of the probe. The top of the base plate of frame 1 is provided with a support platform 102, and the arc-shaped guide plate 3 is rotatably mounted on the support platform 102.

[0039] The drive mechanism 6 includes an arc-shaped rack 601 fixed on the arc-shaped guide plate 3, a gear 602 meshing with the arc-shaped rack 601, and a motor 603 for driving the gear 602 to rotate; the motor 603 drives the gear 602 to rotate, the gear 602 drives the arc-shaped rack 601 to rotate, and the arc-shaped rack 601 drives the arc-shaped guide plate 3 to rotate along the support platform 102.

[0040] The top of the monitoring rod 5 is equipped with an electrical box 501, which contains a storage module, a power module, a controller module, a timing module, etc. The top of the electrical box 501 is equipped with a push-button switch 503 for controlling the status of the components inside the electrical box 501, and a second electromagnet 502. The push-button switch 503 is triggered by the pressure of the insertion / removal mechanism 7 when the monitoring rod 5 is inserted into the penetration hole, thereby automatically activating the monitoring unit 504 and the components inside the electrical box 501. The bottom of the monitoring rod 5 is equipped with a monitoring unit 504, which includes, but is not limited to, a soil moisture sensor and a pressure sensor. The system includes sensors such as resistivity sensors. Soil moisture sensors are used to detect the moisture content of foundation soil and assess its impact on bearing capacity and compressibility. Pressure sensors are used to measure stress changes in foundation soil and determine foundation stability. Resistivity sensors are used to indirectly determine soil density, corrosivity, and groundwater permeability. The monitoring rod 5 is interference-fitted with the penetration hole to ensure that the monitoring rod 5 remains stable after being inserted into the penetration hole, preventing the rod from shifting due to external disturbances. At the same time, it ensures that the monitoring unit 504 is in full contact with the inner wall of the penetration hole, improving the accuracy of monitoring. Reflective markings may also be provided on the surface of the monitoring rod 5.

[0041] The insertion and removal mechanism 7 includes a linear drive 703 for pushing the monitoring rod 5 to move vertically; the movable end of the linear drive 703 is provided with a first electromagnet 704 that cooperates with the second electromagnet 502, for achieving magnetic connection in the adsorption state and releasing the monitoring rod 5 after power is cut off.

[0042] The insertion and removal mechanism 7 also includes a translation unit for moving the linear drive 703 directly above the penetration hole. The translation unit includes a mounting plate 706 fixed on the frame 1, a first wedge block 701, and a second wedge block 702 that cooperates with the first wedge block 701. A movable rod 705 is provided through the mounting plate 706. The first wedge block 701 is fixed at the end of the movable rod 705. A spring 707 is sleeved on the movable rod 705 between the first wedge block 701 and the mounting plate 706. The linear drive 703 is fixed on the first wedge block 701 by a bracket. The second wedge block 702 is fixed on the arc-shaped guide plate 3 by a support rod.

[0043] The linear drive 703 is linked with the translation unit to achieve automatic avoidance and precise alignment. The second wedge block 702 changes position as the arc-shaped guide plate 3 rotates. When the arc-shaped guide plate 3 drives the probe 4 to rotate to the penetration position, the second wedge block 702 contacts the first wedge block 701. After being subjected to force, the first wedge block 701 slides along the direction of the movable rod 705, driving the linear drive 703 to move laterally to avoid the penetration path of the probe 4. After penetration, the arc-shaped guide plate 3 rotates, causing a certain monitoring rod 5 to rotate directly above the penetration hole. At this time, the second wedge block 702 disengages from the first wedge block 701. Upon contact of block 701, spring 707 releases pressure, pushing movable rod 705 to reset, driving linear drive 703 back to directly above the insertion hole. First electromagnet 704 is energized to attract second electromagnet 502 at the top of monitoring rod 5. Linear drive 703 presses down, inserting monitoring rod 5 into the insertion hole. After insertion, electromagnet is de-energized and released, completing the insertion operation. During retrieval, linear drive 703 aligns with the top of monitoring rod 5 again, attracts it, and pulls it upward to remove monitoring rod 5 from the foundation. Monitoring rod 5 is re-attracted to arc-shaped guide plate 3, ready for the next use.

[0044] The mobile vehicle body 2 is provided with a second notch 201 for the monitoring rod 5 to pass through. The second notch 201 has a V-shaped structure and is used to correct the posture of the monitoring rod 5 during the pulling out process. The bottom plate of the frame 1 is provided with a third notch that is aligned with the second notch 201. When the monitoring rod 5 tilts due to the influence of the external environment, the mobile vehicle body 2 can move horizontally, causing the second notch 201 to approach and contact the tilted monitoring rod 5. The inner wall of the V-shaped second notch 201 applies a lateral guiding force to the monitoring rod 5, so that it gradually straightens to the direction of the central axis of the notch. After the monitoring rod 5 is straightened, the insertion and removal mechanism 7 can accurately align with the top of the monitoring rod 5 and perform the pulling out operation.

[0045] The penetrometer is moved to the target location by the mobile vehicle 2. The drop hammer assembly applies impact force to the probe rod 4, causing it to penetrate the foundation, complete the bearing capacity test, and form a penetration hole. After the probe rod 4 is reset, the drive mechanism 6 drives the arc-shaped guide plate 3 to rotate, causing multiple monitoring rods 5 on it to rotate sequentially, so that one of the monitoring rods 5 is accurately aligned with the top of the penetration hole. The insertion and extraction mechanism 7 is activated, pressing the monitoring rod 5 aligned with the penetration hole vertically into the foundation. After the monitoring rod 5 is deeply embedded in the foundation, it can periodically collect data such as stress, temperature, humidity, and displacement inside the foundation. After completing the phased monitoring task, it can be moved again by the mobile vehicle 2 to each monitoring rod 5. The insertion and extraction mechanism 7 pulls the monitoring rod 5 out of the foundation and re-attaches it to the arc-shaped guide plate 3. This penetrometer supports continuous penetration, fixed-point monitoring, and automatic retrieval functions, and is particularly suitable for large-area foundation survey tasks such as airports, industrial parks, and highways, significantly improving survey efficiency and data integrity.

[0046] Example 2

[0047] Based on Example 1, in order to support continuous penetration operations of the penetrometer, such as Figures 1-2 As shown, the probe also includes a distance-fixing component 8, which is used to measure the distance between the frame 1 and the monitoring rod 5 in the previous penetration hole to determine the current penetration position.

[0048] The distance-fixing assembly 8 includes a plurality of distance sensors 801 disposed on the frame 1, and a reflector 802 that matches the distance sensors 801; the reflector 802 is disposed around the electrical box 501.

[0049] By using a distance sensor 801 in conjunction with a reflector 802, the distance between the penetrometer and the monitoring rod 5 inserted into the foundation can be quickly measured. This supports continuous penetration operations and provides low-cost distance measurement, making it suitable for areas with weak signals. When a monitoring rod 5 is inserted into the foundation, the penetrometer moves to the next measurement position. At this time, the distance sensor 801 scans and measures the reflector 802 on the previously inserted monitoring rod 5. The distance sensor 801 emits laser or ultrasonic signals to the reflector 802, and the signals are reflected back to the distance sensor 801. The system calculates the distance between the penetrometer and the monitoring rod 5 based on the signal propagation time or phase difference. Multiple distance sensors 801 can work together to improve measurement accuracy and anti-interference capabilities. The system determines whether the preset penetration spacing (e.g., 50 meters) has been reached based on the measurement results. If the set distance has not been reached, the system continues to advance until the conditions are met. If an abnormal bearing capacity of the foundation is detected, the system controls the penetrometer to return to the point between the abnormal point and the previous normal point for supplementary measurement, thereby improving the accuracy of the exploration.

[0050] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An intelligent penetrometer for testing the bearing capacity of a foundation, comprising a frame (1) and a mobile vehicle (2) for mounting the frame (1), characterized in that: It also includes, The probe (4) is used to impact the foundation surface to test the foundation bearing capacity and form a penetration hole; Multiple monitoring rods (5) are evenly distributed on both sides of the probe (4) along the circumference, and are used to be inserted into the penetration hole to continuously monitor changes in the foundation condition; The conversion mechanism is located within the frame (1) and is used to support the probe (4) and multiple monitoring rods (5) and drive each monitoring rod (5) to rotate sequentially to the top of the corresponding penetration hole. The conversion mechanism includes an arc-shaped guide plate (3) and a drive mechanism (6) for driving the arc-shaped guide plate (3) to rotate. Insertion and removal mechanism (7), provided on the frame (1), is used to press the monitoring rod (5) located directly above the penetration hole into the penetration hole or to pull out the monitoring rod (5) that has been inserted into the foundation; The distance measuring component (8) is used to measure the distance between the frame (1) and the monitoring rod (5) in the previous penetration hole to determine the current penetration position.

2. The intelligent penetrometer for testing foundation bearing capacity according to claim 1, characterized in that, The arc-shaped guide plate (3) is configured as a magnetic attraction component, and the probe (4) and multiple monitoring rods (5) are all magnetically connected to the arc-shaped guide plate (3); The arc-shaped guide plate (3) is provided with a guide hole (301) for the probe rod (4) to pass through, and a first notch (302) for the monitoring rod (5) to pass through.

3. The intelligent penetrometer for testing foundation bearing capacity according to claim 1, characterized in that, The bottom of the frame (1) is provided with multiple adjustable support legs (101), and the top of the bottom plate of the frame (1) is provided with a support platform (102). The arc-shaped guide plate (3) is rotatably mounted on the support platform (102).

4. The intelligent penetrometer for testing foundation bearing capacity according to claim 1, characterized in that, The top of the monitoring rod (5) is provided with an electrical box (501), and the top of the electrical box (501) is provided with a push-button switch (503) for controlling the state of the components inside the electrical box (501), and a second electromagnet (502). The bottom end of the monitoring rod (5) is provided with a monitoring unit (504).

5. The intelligent penetrometer for testing foundation bearing capacity according to claim 4, characterized in that, The monitoring rod (5) is interference-fitted with the penetration hole.

6. The intelligent penetrometer for testing foundation bearing capacity according to claim 4, characterized in that, The insertion and removal mechanism (7) includes a linear drive (703) for pushing the monitoring rod (5) to move vertically. The movable end of the linear drive (703) is provided with a first electromagnet (704) that cooperates with the second electromagnet (502).

7. The intelligent penetrometer for testing foundation bearing capacity according to claim 6, characterized in that, The insertion and removal mechanism (7) further includes a translation unit for moving the linear drive (703) directly above the penetration hole. The translation unit includes a mounting plate (706) fixed on the frame (1), a first wedge block (701), and a second wedge block (702) that cooperates with the first wedge block (701). A movable rod (705) is provided through the mounting plate (706), the first wedge block (701) is fixedly disposed at the end of the movable rod (705), and a spring (707) is sleeved on the movable rod (705) between the first wedge block (701) and the mounting plate (706). The linear drive component (703) is fixedly disposed on the first wedge block (701) by a bracket. The second wedge block (702) is fixed on the arc-shaped guide plate (3) by a support rod.

8. The intelligent penetrometer for testing foundation bearing capacity according to claim 1, characterized in that, The mobile vehicle body (2) is provided with a second notch (201) for the monitoring rod (5) to pass through. The second notch (201) is a V-shaped structure and is used to correct the posture of the monitoring rod (5) during the pulling out process. The bottom plate of the frame (1) is provided with a third notch that is aligned with the second notch (201).

9. The intelligent penetrometer for testing foundation bearing capacity according to claim 4, characterized in that, The distance-fixing component (8) includes a plurality of distance sensors (801) mounted on the frame (1) and a reflector (802) that matches the distance sensors (801). The reflector (802) is arranged around the electrical box (501).

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