Foundation bearing capacity detection device and detection method

Abstract

The application provides a foundation bearing capacity detection device and a detection method. The foundation bearing capacity detection device comprises a mobile carrier, and a first detection unit and a second detection unit arranged on the mobile carrier. The first detection unit and the second detection unit are two detection units that are opposite to each other and detect the same area. The second detection unit can climb a larger height range, and the hammering force is greater than that of the first detection unit. The accurate value of the foundation bearing capacity is obtained by comprehensively calculating the different hammering heights, different hammering forces and different penetration depths of the two detection units. Furthermore, the application also provides a detection method for the foundation bearing capacity. The method can comprehensively consider various detection scenes and accurately measure the foundation bearing capacity of different geological foundations.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of civil engineering, in particular to a foundation bearing capacity detection equipment and detection method. BACKGROUND

[0002] The bearing capacity of the foundation needs to be detected during the construction process. The dynamic sounding is a new method for detecting the bearing capacity of the shallow foundation. The dynamic sounding is divided into light, heavy and super heavy types. During the operation, the hammer is lifted to the moving height by manual operation, and then the hammer is allowed to fall freely. The hammer impacts the sounding rod, and the end of the sounding rod is inserted into the foundation soil after being impacted. The insertion depth of the sounding rod is measured to calculate the bearing capacity of the foundation.

[0003] However, during the foundation bearing capacity detection process, the same height and force are hit by multiple transposition to record data. Although the existing foundation bearing capacity detection equipment has the function of adjusting the hammering height, the height adjustment range is greatly limited. The insertion depth of the sounding rod changes for different hammering heights, and the detection value is single. The same equipment is prone to deviation during multi-point detection, which cannot meet the requirement of obtaining accurate data in the foundation bearing capacity detection. SUMMARY

[0004] The present application provides a foundation bearing capacity detection equipment and detection method. Two-way detection units are used to hit two sounding rods at different heights. The two sounding rods are located in the same detection area. The insertion depth of the two sounding rods under different hammering pressures is calculated comprehensively to obtain the same accurate foundation bearing capacity value.

[0005] The present application provides a foundation bearing capacity detection equipment. The foundation bearing capacity detection equipment comprises a moving carrier, and a first detection unit and a second detection unit arranged on the moving carrier.

[0006] The first detection unit comprises a first vertical truss. The first vertical truss is vertically assembled on the moving carrier, and the top end of the first vertical truss is assembled with a first lifting mechanism. The first lifting mechanism electromagnetically attracts a first hammering assembly. A first positioning hole is formed in the moving carrier, and a first sounding rod matched with the first hammering assembly is slidably assembled in the first positioning hole.

[0007] The second detection unit comprises a second vertical truss. The second vertical truss is slidably assembled in the first vertical truss along the height direction of the first vertical truss. The top end of the second vertical truss is assembled with a second lifting mechanism. The second lifting mechanism electromagnetically attracts a second hammering assembly. A second positioning hole is formed in the moving carrier, and a second sounding rod matched with the second hammering assembly is slidably assembled in the second positioning hole.

[0008] The foundation bearing capacity testing equipment also includes a chain lifting assembly; the chain lifting assembly includes: a ring chain rotatably connected to the first vertical truss, and a sliding plate fixedly connected to the second vertical truss;

[0009] The annular chain is connected to a drive system, the sliding plate is slidably connected to the first vertical truss, and the annular chain is fixedly connected to the sliding plate.

[0010] In this application, the first detection unit and the second detection unit are two detection units facing away from each other and detecting the same area. The second detection unit has a larger climbing height range and a greater hammering force than the first detection unit. By having the two detection units perform different hammering heights, different hammering forces, and different penetration depths of the probe, the accurate value of the foundation bearing capacity is calculated comprehensively.

[0011] In one specific implementation, the mobile carrier is equipped with multiple drive wheels at its bottom. The mobile carrier possesses flexible mobility and can be applied to different detection areas.

[0012] In one specific feasible implementation, the first vertical truss is perpendicular to the moving carrier. Assembly specifications ensure stability under free fall.

[0013] In one specific implementation scheme, the first lifting mechanism includes: a first mounting plate disposed at the top of the first vertical truss, and a first winch mounted on the first mounting plate; wherein...

[0014] The first winch has a first rope group wound around it, passing through the first mounting plate. The bottom end of the first rope group is connected to a first lifting block. The bottom of the first lifting block is equipped with a first electromagnet that is magnetically attracted to the first hammer assembly. Electromagnetic attraction is flexible and convenient, and has high control functionality.

[0015] In one specific feasible implementation, when the first hammering assembly is demagnetized from the first electromagnet...

[0016] The first hammer component falls freely;

[0017] The center of the first hammering assembly and the center of the first probe rod are located on the same vertical line. The free-fall hammering performance is stable.

[0018] In one specific implementation scheme, the second lifting mechanism includes: a second mounting plate disposed at the top of the second vertical truss, and a second winch mounted on the second mounting plate; wherein...

[0019] A second rope assembly, passing through the second mounting plate, is wound around the second winch. The bottom end of the second rope assembly is connected to a second lifting block. At the bottom of the second lifting block is a second electromagnet that magnetically attracts the second hammer assembly. Electromagnetic attraction is flexible and convenient, and offers high controllability.

[0020] In one specific feasible implementation, when the second hammering assembly is demagnetized from the second electromagnet and falls freely...

[0021] The second hammering component falls freely;

[0022] The center of the second hammering assembly and the center of the second probe rod are located on the same vertical line. The free-fall hammering performance is stable.

[0023] In one specific implementation scheme, a drive sprocket is rotatably connected to the bottom end of the first vertical truss, and a driven sprocket is rotatably connected to the top end of the first vertical truss.

[0024] The annular chain is connected between the drive sprocket and the driven sprocket;

[0025] The drive system includes: a drive motor and a main pulley connected to the output shaft of the drive motor;

[0026] A driven pulley is coaxially rotatably connected to the drive sprocket, and a transmission belt connects the main pulley and the driven pulley. A drive motor drives the annular chain to rotate circumferentially, causing the second vertical truss to climb during rotation.

[0027] In one specific implementation, the sliding plate is provided with a positioning block that is fixedly connected to the annular chain;

[0028] The sliding plate is rotatably connected to guide wheels on both sides, which press against the first vertical truss. This provides good guiding performance, allows for precise positioning of the second vertical truss's climbing height, and increases the versatility of the detection process.

[0029] Secondly, a method for testing the bearing capacity of a foundation includes the following steps:

[0030] Step 1: Move the mobile carrier to the foundation testing area;

[0031] Step 2: Insert the first penetrometer rod into the foundation through the first positioning hole and insert the second penetrometer rod into the foundation through the second positioning hole. The height of the first and second penetrometer rods exposed in the foundation should be the same.

[0032] Step 3: The first lifting mechanism magnetically attracts the first hammer component and rises to the first height; the second lifting mechanism magnetically attracts the second hammer component and rises to the second height, which is greater than the first height.

[0033] Step 4: Record the first and second altitude values;

[0034] Step 5: The first electromagnet is powered off, and the first hammer assembly falls freely to strike the first probe rod; the second electromagnet is powered off, and the second hammer assembly falls freely to strike the second probe rod.

[0035] Step 6: Measure the depth of the first penetration test rod inserted into the foundation, and measure the depth of the second penetration test rod inserted into the foundation.

[0036] Step 7: Repeat steps 3 to 6 multiple times, and allow the first and second hammer components to rise to a third or fourth height and fall freely.

[0037] Step 8: Based on the multiple free fall height values ​​of the first hammer impact component, the multiple free fall height values ​​of the second hammer impact component, the multiple force values ​​of the first penetration rod, the multiple force values ​​of the second penetration rod, the multiple insertion depth values ​​of the first penetration rod, and the multiple insertion depth values ​​of the second penetration rod, the foundation bearing capacity is calculated comprehensively.

[0038] Step 9: When the comprehensive calculation values ​​of the first and second penetration probes are consistent, accurate foundation bearing capacity test data are obtained. If the comprehensive calculation values ​​are inconsistent, steps 1 to 8 are repeated.

[0039] Using the above method, a bidirectional detection unit is employed to hammer two penetration test rods at different heights. The two test rods are located in the same detection area, and the insertion depth of the two test rods under different hammering pressures is calculated to obtain the same accurate foundation bearing capacity value. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the first state of the foundation bearing capacity testing equipment provided in the embodiments of this application;

[0041] Figure 2 This is a schematic diagram of the second state of the foundation bearing capacity testing equipment provided in the embodiments of this application;

[0042] Figure 3 This is a schematic diagram of the structure of the sliding plate provided in an embodiment of this application;

[0043] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0044] Figure 5 A flowchart illustrating the steps of the method for detecting the bearing capacity of a foundation provided in this application embodiment.

[0045] Icon labels:

[0046] Mobile carrier-100, drive wheel-110, first positioning hole-120, second positioning hole-130;

[0047] First vertical truss-200, first mounting plate-210, first winch-220, first rope assembly-230, first electromagnet-240, first hammer assembly-250, first probe rod-260;

[0048] Second vertical truss-300, second mounting plate-310, second winch-320, second rope assembly-330, second electromagnet-340, second hammer impact assembly-350, second probe rod-360;

[0049] Circular chain-400, driven sprocket-410, sliding plate-420, guide wheel-430, positioning block-440, drive sprocket-450, drive motor-460, transmission belt-470. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0051] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] To facilitate understanding of the foundation bearing capacity testing equipment and method provided in this application, its application scenario is first explained. This foundation bearing capacity testing equipment and method are mainly used in the field of civil engineering technology. However, in the process of foundation bearing capacity testing, data is recorded by repeatedly changing positions and hammering at the same height and with the same force. Although some existing foundation bearing capacity testing equipment has the function of adjusting the hammer height, the height adjustment range is quite limited. The detection value of the change in the insertion depth of the probe under different hammer heights is singular, and the deviation is prone to occur when testing multiple points with the same equipment, which makes it impossible to meet the requirements of obtaining accurate data in foundation bearing capacity testing. In view of this, the foundation bearing capacity testing equipment and method in this application adopts a bidirectional detection unit, hammering two probes at different heights. The two probes are located in the same detection area, and the insertion depth of the two probes under different hammer pressures is calculated comprehensively to obtain the same accurate foundation bearing capacity value.

[0053] refer to Figure 1 , Figure 1 This is a schematic diagram of the first state of the foundation bearing capacity testing equipment. Figure 2 This is a schematic diagram of the second state of the foundation bearing capacity testing equipment. It should be specifically explained that the first and second states of the foundation bearing capacity testing equipment in this application are for testing foundations with different geological conditions. When the foundation is soft soil, the first and second testing units in the first state can be raised to different heights for data acquisition; the first testing unit can be higher or lower than the second testing unit. When the foundation soil is hard or contains sand and gravel, the hammer height of the second testing unit in the second state is always greater than that of the first testing unit. Through this height-low misalignment, different hammering forces are obtained, and a calculable comprehensive value is obtained based on the insertion depth of the probe. The foundation bearing capacity is calculated by comprehensively considering the probe insertion depth, the force values ​​at different hammering heights, etc. This calculation method is well-known to those skilled in the art and will not be elaborated further here. This application uses two independent testing units to conduct diverse tests in the same area. The same values ​​obtained by the two testing units are the accurate values ​​of the foundation. When the two units produce different values, the difference in equipment damage and foundation bearing capacity is considered, and the testing operation needs to be carried out again after maintenance.

[0054] refer to Figure 1 As shown in the illustration, the foundation bearing capacity testing device provided in this application embodiment includes a mobile carrier 100. This mobile carrier 100 is used to move on the foundation for testing and has strong flexibility. Furthermore, multiple drive wheels 110 are provided at the bottom of the mobile carrier 100. The mobile carrier 100 has flexible mobility and can be applied to different testing areas.

[0055] The mobile carrier 100 in this application is equipped with a first detection unit and a second detection unit. The bearing capacity of the foundation in the same direction area is tested by the two sets of detection units. The first detection unit and the second detection unit use the same hammer-driven penetration test method. The penetration test rod is equipped with a fiber probe and scale, etc. By obtaining different pressure values ​​and insertion depths, the same foundation value is obtained. When the bearing capacity values ​​are consistent, an accurate foundation bearing capacity value can be obtained.

[0056] The first detection unit includes: a first vertical truss 200; the first vertical truss 200 is perpendicular to the moving carrier 100. The assembly is standardized, ensuring stability during free fall under hammer impact. The first vertical truss 200 is vertically mounted on the moving carrier 100, and a first lifting mechanism is mounted at the top of the first vertical truss 200. The first lifting mechanism electromagnetically attracts a first hammer impact component 250, and the moving carrier 100 has a first positioning hole 120. A first probe rod 260 adapted to the first hammer impact component 250 is slidably mounted inside the first positioning hole 120. Specifically, the first lifting mechanism includes: a first mounting plate 210 located at the top of the first vertical truss 200, and a first winch 220 mounted on the first mounting plate 210. The first winch 220 is wound with a first rope group 230 that passes through the first mounting plate 210. The bottom end of the first rope group 230 is connected to a first lifting block, and the bottom of the first lifting block is provided with a first electromagnet 240 that magnetically attracts the first hammer impact component 250. Electromagnetic adsorption is flexible and convenient, and possesses high controllability. When the first hammering component 250 is demagnetized from the first electromagnet 240, the first hammering component 250 falls freely; the center of the first hammering component 250 and the center of the first probe rod 260 are located on the same vertical line. The free-fall hammering performance is stable. It can be seen that the maximum lifting height of the first hammering component 250 is the height of the first vertical truss 200 itself. During the lifting process along the first vertical truss 200, the first hammering component 250 can obtain a large height range. The upper surface of the moving carrier 100 has a cavity for bearing the sand layer. After the first hammering component 250 is demagnetized and falls vertically, it contacts the first probe rod 260 and hammers. After the force of the first hammering component 250 decreases, it falls onto the sand layer without vibration, and thus does not affect the measurement data.

[0057] The second detection unit includes: a second vertical truss 300; the second vertical truss 300 is slidably assembled inside the first vertical truss 200 and extends along the height direction of the first vertical truss 200; a second lifting mechanism is assembled at the top of the second vertical truss 300; the second lifting mechanism electromagnetically attracts a second hammering component 350; a second positioning hole 130 is provided on the moving carrier 100; a second probe rod 360 adapted to the second hammering component 350 is slidably assembled inside the second positioning hole 130; the second lifting mechanism includes: a second mounting plate 310 disposed at the top of the second vertical truss 300; and a second winch 320 mounted on the second mounting plate 310; wherein, a second rope group 330 passing through the second mounting plate 310 is wound on the second winch 320; a second lifting block is connected to the bottom end of the second rope group 330; and a second electromagnet 340 magnetically attracting the second hammering component 350 is disposed at the bottom of the second lifting block. Electromagnetic attraction is flexible and convenient, and has high control functionality. When the second hammer impact assembly 350 is demagnetized from the second electromagnet 340 and falls freely, the center of the second hammer impact assembly 350 and the center of the second probe rod 360 are located on the same vertical line. The free-fall hammer impact performance is stable. It should be specifically noted that the first winch 220 and the second winch 320 are of the same model; the first lifting block and the second lifting block have the same volume; the first hammer impact assembly 250 and the second hammer impact assembly 350 have the same volume; and the first probe rod 260 and the second probe rod 360 have the same volume. Therefore, by using two sets of identical equipment, different detection data are obtained under different height changes, hammer pressure changes, and insertion value changes. Therefore, the maximum lifting height of the second hammer impact component 350 is the sum of the heights of the first vertical truss 200 and the second vertical truss 300. During the lifting process along the first vertical truss 200 and the second vertical truss 300, the second hammer impact component 350 can achieve a larger height range. The upper surface of the moving carrier 100 has a cavity for bearing the sand layer. After the second hammer impact component 350 is demagnetized and falls vertically, it contacts and hammers the second probe rod 360. After the force of the second hammer impact component 350 decreases, it falls onto the sand layer without generating vibration, and thus does not affect the measurement data.

[0058] Combination Figure 3 and Figure 4As shown, to ensure the stable climbing of the second vertical truss 300, the foundation bearing capacity testing equipment also includes a chain lifting assembly. The chain lifting assembly includes: an annular chain 400 rotatably connected to the first vertical truss 200, and a sliding plate 420 fixedly connected to the second vertical truss 300. The annular chain 400 is connected to a drive system, and the sliding plate 420 is slidably connected to the first vertical truss 200, with the annular chain 400 fixedly connected to the sliding plate 420. A drive sprocket 450 is rotatably connected to the bottom end of the first vertical truss 200, and a driven sprocket 410 is rotatably connected to the top end of the first vertical truss 200. The annular chain 400 connects between the drive sprocket 450 and the driven sprocket 410. The drive system includes: a drive motor 460 and a main pulley connected to the output shaft of the drive motor 460. A driven pulley is coaxially rotatably connected to the drive sprocket 450, and a transmission belt 470 connects the main pulley and the driven pulley. A drive motor 460 drives a ring chain 400 to rotate circumferentially, causing the second vertical truss 300 to climb during rotation. A positioning block 440, fixedly connected to the ring chain 400, is provided on a sliding plate 420; guide wheels 430, which press against the first vertical truss 200, are rotatably connected to both sides of the sliding plate 420. This provides good guiding performance, allowing for precise positioning of the climbing height of the second vertical truss 300 and increasing the versatility of detection.

[0059] As can be seen from the above structure, after the drive motor 460 starts, it drives the ring chain 400 to rotate, thereby driving the sliding plate 420 to slide upward under the action of the positioning block 440. The sliding plate 420 is fixedly connected to the second vertical truss 300. Under the action of the guide wheel 430, the sliding plate 420 rises steadily along the first vertical truss 200, thereby driving the second vertical truss 300 to rise steadily, increasing the detection height range.

[0060] In this application, the first detection unit and the second detection unit are two detection units facing away from each other and detecting the same area. The second detection unit has a larger climbing height range and a greater hammering force than the first detection unit. By having the two detection units perform different hammering heights, different hammering forces, and different penetration depths of the probe, the accurate value of the foundation bearing capacity is calculated comprehensively.

[0061] refer to Figure 5 A method for testing the bearing capacity of a foundation includes the following steps:

[0062] S1. The mobile carrier is moved to the foundation testing area.

[0063] S2. Insert the first probe rod into the foundation through the first positioning hole and insert the second probe rod into the foundation through the second positioning hole. The height of the first probe rod and the second probe rod exposed in the foundation is the same.

[0064] S3. The first lifting mechanism magnetically attracts the first hammer component and rises to the first height, and the second lifting mechanism magnetically attracts the second hammer component and rises to the second height, which is greater than the first height.

[0065] S4. Record the first altitude value and the second altitude value.

[0066] S5. The first electromagnet turns off the power, and the first hammer assembly falls freely to strike the first probe rod; the second electromagnet turns off the power, and the second hammer assembly falls freely to strike the second probe rod.

[0067] S6. Measure the depth of the first penetration test rod inserted into the foundation, and measure the depth of the second penetration test rod inserted into the foundation.

[0068] S7. Repeat steps S3 to S6 multiple times, and allow the first and second hammer components to rise to a third or fourth height and fall freely.

[0069] S8. Based on the multiple free fall height values ​​of the first hammer impact component, the multiple free fall height values ​​of the second hammer impact component, the multiple force values ​​of the first penetration rod, the multiple force values ​​of the second penetration rod, the multiple insertion depth values ​​of the first penetration rod, and the multiple insertion depth values ​​of the second penetration rod, the foundation bearing capacity is calculated comprehensively.

[0070] S9. When the comprehensive calculation value of the first penetration test rod and the comprehensive calculation value of the second penetration test rod are consistent, accurate foundation bearing capacity test data are obtained. If the comprehensive calculation values ​​are inconsistent, S1 to S8 are repeated in reverse order.

[0071] Using the above method, a bidirectional detection unit is employed to hammer two penetration test rods at different heights. The two test rods are located in the same detection area, and the insertion depth of the two test rods under different hammering pressures is calculated to obtain the same accurate foundation bearing capacity value.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this specification, which are not provided in detail for the sake of brevity.

[0073] Additionally, to simplify the description and discussion, and to avoid obscuring one or more embodiments of this specification, well-known power / ground connections to integrated circuits and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be illustrated in block diagram form to avoid obscuring one or more embodiments of this specification, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0074] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0075] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foundation bearing capacity testing device, characterized in that, include: A mobile carrier, and a first detection unit and a second detection unit disposed on the mobile carrier; wherein, The first detection unit includes: a first vertical truss; the first vertical truss is vertically mounted on the mobile carrier, and a first lifting mechanism is mounted at the top of the first vertical truss. The first lifting mechanism is electromagnetically attracted to a first hammering component, and a first positioning hole is opened on the mobile carrier. A first probe rod adapted to the first hammering component is slidably mounted inside the first positioning hole. The second detection unit includes: a second vertical truss; the second vertical truss is slidably assembled inside the first vertical truss and extends along the height direction of the first vertical truss; a second lifting mechanism is assembled at the top of the second vertical truss; the second lifting mechanism is electromagnetically attracted to a second hammering component; and a second positioning hole is opened on the moving carrier; a second probe rod adapted to the second hammering component is slidably assembled inside the second positioning hole. The foundation bearing capacity testing equipment also includes a chain lifting assembly; the chain lifting assembly includes: a ring chain rotatably connected to the first vertical truss, and a sliding plate fixedly connected to the second vertical truss; The annular chain is connected to a drive system, the sliding plate is slidably connected to the first vertical truss, and the annular chain is fixedly connected to the sliding plate.

2. The foundation bearing capacity testing equipment according to claim 1, characterized in that, The bottom of the mobile carrier is equipped with multiple drive wheels.

3. The foundation bearing capacity testing equipment according to claim 1, characterized in that, The first vertical truss is perpendicular to the mobile carrier.

4. The foundation bearing capacity testing equipment according to claim 1, characterized in that, The first lifting mechanism includes: a first mounting plate disposed at the top of the first vertical truss, and a first winch mounted on the first mounting plate; wherein, The first winch is wound with a first rope group that passes through the first mounting plate. The bottom end of the first rope group is connected to a first lifting block. The bottom of the first lifting block is provided with a first electromagnet that is magnetically attracted to the first hammer assembly.

5. The foundation bearing capacity testing equipment according to claim 4, characterized in that, When the first hammering component is demagnetized from the first electromagnet, The first hammer component falls freely; The center of the first hammering assembly and the center of the first probe rod are located on the same vertical line.

6. The foundation bearing capacity testing equipment according to claim 5, characterized in that, The second lifting mechanism includes: a second mounting plate disposed at the top of the second vertical truss, and a second winch mounted on the second mounting plate; wherein, The second winch is wound with a second rope group that passes through the second mounting plate. The bottom end of the second rope group is connected to a second lifting block. The bottom of the second lifting block is provided with a second electromagnet that is magnetically attracted to the second hammer assembly.

7. The foundation bearing capacity testing equipment according to claim 6, characterized in that, When the second hammer assembly is demagnetized from the second electromagnet and falls freely, The second hammer component falls freely; The center of the second hammering assembly and the center of the second probe rod are located on the same vertical line.

8. The foundation bearing capacity testing equipment according to claim 1, characterized in that, The bottom end of the first vertical truss is rotatably connected to a drive sprocket, and the top end of the first vertical truss is rotatably connected to a driven sprocket. The annular chain is connected between the drive sprocket and the driven sprocket; The drive system includes: a drive motor and a main pulley connected to the output shaft of the drive motor; A driven pulley is coaxially rotatably connected to the drive sprocket, and a transmission belt connects the main pulley and the driven pulley.

9. The foundation bearing capacity testing equipment according to claim 1, characterized in that, The sliding plate is provided with a positioning block that is fixedly connected to the annular chain; The sliding plate is rotatably connected to guide wheels that press against the first vertical truss on both sides.

10. A method for testing the bearing capacity of a foundation using the foundation bearing capacity testing equipment described in claim 6, characterized in that, Includes the following steps: Step 1: Move the mobile carrier to the foundation testing area; Step 2: Insert the first penetrometer rod into the foundation through the first positioning hole and insert the second penetrometer rod into the foundation through the second positioning hole. The height of the first penetrometer rod and the second penetrometer rod exposed in the foundation should be the same. Step 3: The first lifting mechanism magnetically attracts the first hammer component and rises to the first height; the second lifting mechanism magnetically attracts the second hammer component and rises to the second height, which is greater than the first height. Step 4: Record the first and second altitude values; Step 5: The first electromagnet is powered off, and the first hammer assembly falls freely to strike the first probe rod; the second electromagnet is powered off, and the second hammer assembly falls freely to strike the second probe rod. Step 6: Measure the depth of the first penetration test rod inserted into the foundation, and measure the depth of the second penetration test rod inserted into the foundation. Step 7: Repeat steps 3 to 6 multiple times, and allow the first and second hammer components to rise to a third or fourth height and fall freely. Step 8: Based on the multiple free fall height values ​​of the first hammer impact component, the multiple free fall height values ​​of the second hammer impact component, the multiple force values ​​of the first penetration rod, the multiple force values ​​of the second penetration rod, the multiple insertion depth values ​​of the first penetration rod, and the multiple insertion depth values ​​of the second penetration rod, the foundation bearing capacity is calculated comprehensively. Step 9: When the comprehensive calculation values ​​of the first and second penetration probes are consistent, accurate foundation bearing capacity test data are obtained. If the comprehensive calculation values ​​are inconsistent, steps 1 to 8 are repeated.

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