Soft soil in-situ solidification test device

Abstract

The invention provides a soft soil in-situ solidification test device, and relates to the technical field of soft soil solidification, a supporting platform of the soft soil in-situ solidification test device is provided with a drill rod assembly and a pressure applying assembly, the drill rod assembly is used for drilling, and the pressure applying assembly is used for pressing a soil sampler into a guide hole drilled by the drill rod assembly. The supporting platform of the soft soil in-situ solidification test device is arranged on the first lifting platform, so that the drill rod assembly on the supporting platform can guide holes in soft soil, and then the supporting platform moves on the second supporting platform, so that the pressure applying assembly can correspond to the guide holes, and a soil sampler is inserted into the guide holes; then the drilling assembly is inserted into the soil sampler and a curing agent is sprayed, so that the curing test is carried out in situ, the cured soil body is not disturbed due to soil sampling and transportation processes, the authenticity of test data is greatly improved, and more reliable test data is provided for subsequent engineering construction.

Description

Technical Field

[0001] The invention relates to the technical field of soft soil solidification, in particular to a soft soil in-situ solidification test device. Background Art

[0002] The soft soil in-situ solidification technology is a technology that uses a curing agent to treat soft soil in situ, aiming to improve the strength and stability of soft soil to meet the needs of engineering construction. This technology forms a solidified soil body with sufficient strength by evenly mixing the curing agent with the soft soil and utilizing the physical and chemical effects between the curing agent and the soft soil. Before the soft soil is formally solidified in situ, it is necessary to formulate a suitable soft soil solidification engineering plan based on the properties of the soft soil and engineering requirements, including the selection of curing materials, curing methods and construction plans. At present, a series of tests before soft soil solidification are carried out indoors, that is, after taking the soil outdoors, indoor curing tests are carried out to obtain the optimal ratio of the soft soil curing agent, the optimal curing method, etc.

[0003] Since soft soil has the characteristics of high natural water content, large porosity, high compressibility and low shear strength, it is easy to disturb the soft soil during the on-site soil extraction process, and the soil moisture content often changes during the transportation of the soil to the laboratory, which leads to deviations in subsequent indoor tests. Deviations in test data may cause the subsequent on-site soil reinforcement strength to fail to meet the design requirements, which not only affects the quality of the project, but may also increase the cost of the project. Summary of the invention

[0004] The purpose of the present invention is to provide a soft soil in-situ solidification test device to solve the technical problem that soft soil is prone to deviation in laboratory test data, which affects the quality of the project and increases the cost of the project.

[0005] The present invention provides a soft soil in-situ curing test device, comprising a first support frame, on which a first lifting platform is slidably arranged, and the first lifting platform can move along a first direction of the first support frame;

[0006] A first driving assembly is disposed at one end of the first supporting frame, the first driving assembly is connected to the first lifting platform, and the first driving assembly enables the first lifting platform to reciprocate along a first direction;

[0007] A support platform is provided on the first lifting platform, and the support platform can reciprocate on the first lifting platform along a second direction;

[0008] A second driving assembly is provided at one end of the first lifting platform in the second direction, and the second driving assembly enables the supporting platform to reciprocate along the second direction;

[0009] A drill rod assembly and a pressure assembly are arranged on the support platform, wherein the drill rod assembly is used for drilling holes, and the pressure assembly is used for pressing the soil extractor into the guide hole drilled by the drill rod assembly;

[0010] The first direction is a length direction of the first support frame, and the second direction is a width direction of the first support frame.

[0011] In an optional embodiment, the first driving assembly includes a first driving motor and a first driving screw, the first driving screw is arranged along a first direction of the first supporting frame, the first driving motor is arranged at a first end of the first supporting frame, one end of the first driving screw is connected to the first driving motor, and the other end is rotatably arranged with the second end of the first supporting frame;

[0012] The first lifting platform is screwed onto the first driving screw rod.

[0013] In an optional embodiment, at least two first guide rails are arranged along the first direction of the first support frame, a first slider matching the first guide rail is arranged on the first lifting platform, and the first slider is slidably arranged on the first guide rail.

[0014] In an optional embodiment, the second driving assembly includes a second driving motor and a second driving screw, the second driving screw is arranged along the second direction of the first lifting platform, the second driving motor is arranged at one end of the first lifting platform, one end of the second driving screw is connected to the second driving motor, and the other end is rotatably configured with the other end of the first lifting platform;

[0015] The supporting platform is screwed onto the second driving screw rod.

[0016] In an optional embodiment, at least two second guide rails are arranged along the second direction of the first lifting platform, a second slider matching the second guide rails is arranged on the supporting platform, and the second slider is slidably arranged on the second guide rails.

[0017] In an optional embodiment, the drill rod assembly includes a drill rod motor and a drill rod body, the drill rod motor is arranged on the support platform, and one end of the drill rod body is arranged on the drill rod motor;

[0018] A conveying pipe is arranged in the drill rod body, and a discharge port for material output is arranged on the drill rod body, and a sealing cover is arranged on the discharge port.

[0019] In an optional embodiment, the pressure-applying assembly includes an oil cylinder, which is disposed at an upper end of the support platform, and a movable end of the oil cylinder can extend to a lower side of the support platform.

[0020] In an optional embodiment, a positioning assembly is provided on the first support frame, and the positioning assembly is located on a side of the first lifting platform away from the first driving assembly;

[0021] The positioning assembly includes a positioning sleeve and a plurality of telescopic screws, one end of the telescopic screw is connected to the first support frame, and the other end is connected to the positioning sleeve.

[0022] In an optional embodiment, a lifting support frame is provided on the support platform, the drill rod assembly is arranged on the lifting support frame, and the lifting support frame is used to lift the drill rod assembly along a first direction.

[0023] In an optional embodiment, it further comprises a crawler vehicle, and one end of the first support frame away from the first drive assembly is hingedly connected to the crawler vehicle;

[0024] A lifting assembly is arranged on the crawler vehicle, one end of the lifting assembly is connected to the crawler vehicle, and the other end is connected to the first supporting frame; the lifting assembly is used to move the first supporting frame.

[0025] The first lifting platform is slidably arranged on the first support frame of the soft soil in-situ solidification test device provided by the present invention, and the support platform is arranged on the first lifting platform, so that the drill rod assembly on the support platform can make a hole in the soft soil, and then the pressure assembly can correspond to the hole through the movement of the support platform on the second support platform; the soil extractor is inserted into the hole, and the pressure assembly makes the soil extractor enter the hole, the pressure assembly rises, and other soil extractors are installed on the soil extractor, and according to actual needs, multiple soil extractors are pressed into the hole in sequence; then the drill rod assembly is made to correspond to the soil extractor through the movement of the support platform on the first lifting platform, and the drill rod assembly is inserted into the soil extractor for stirring and solidification; different curing agent dosage tests are carried out on site, and when the test is completed, the pressure assembly takes out the soil extractor, and then the reinforced soil in the soil extractor is cured, and then various indoor tests are carried out to obtain some properties of the reinforced soil, especially the strength properties.

[0026] Since the solidification test is carried out on-site, the solidified soil will not be disturbed by the process of soil extraction and transportation, which greatly improves the authenticity of the test data and provides more reliable test data for subsequent engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of a soft soil in-situ solidification test device provided by an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A schematic structural diagram of the soft soil in-situ curing test device from another angle shown;

[0030] Figure 3 for Figure 1 A schematic structural diagram of the connection between the first support frame and the first lifting platform of the soft soil in-situ curing test device shown;

[0031] Figure 4 for Figure 1 The schematic diagram of the structure of the connection between the pressure component, the drilling component and the support platform of the soft soil in-situ solidification test device is shown.

[0032] Icons: 100-crawler; 200-lifting; 300-first support frame; 400-first drive assembly; 401-first drive motor; 402-first drive screw; 500-first lifting platform; 600-second drive assembly; 601-second drive motor; 602-second drive screw; 700-drill rod assembly; 701-drill rod motor; 702-drill rod body; 703-sealing cover; 800-pressure assembly; 900-earth extractor; 110-support platform; 120-first slider; 130-first guide rail; 140-second guide rail; 150-second slider; 160-positioning assembly; 161-positioning sleeve; 162-telescopic screw. DETAILED DESCRIPTION

[0033] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the products of the present application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0036] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0037] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings.

[0038] Reference Figure 1-Figure 4 The present invention provides a soft soil in-situ solidification test device, comprising a first support frame 300, on which a first lifting platform 500 is slidably arranged, and the first lifting platform 500 can move along a first direction of the first support frame 300;

[0039] A first driving assembly 400 is disposed at one end of the first supporting frame 300, and the first driving assembly 400 is connected to the first lifting platform 500, and the first driving assembly 400 enables the first lifting platform 500 to reciprocate along a first direction;

[0040] A support platform 110 is disposed on the first lifting platform 500, and the support platform 110 can reciprocate on the first lifting platform 500 along a second direction;

[0041] A second driving assembly 600 is disposed at one end of the first lifting platform 500 in the second direction, and the second driving assembly 600 enables the supporting platform 110 to reciprocate along the second direction;

[0042] A drill rod assembly 700 and a pressure assembly 800 are provided on the support platform 110. The drill rod assembly 700 is used for drilling holes, and the pressure assembly 800 is used for pressing the soil extractor 900 into the guide hole drilled by the drill rod assembly 700.

[0043] The first direction is the length direction of the first support frame 300 , and the second direction is the width direction of the first support frame 300 .

[0044] In some embodiments, the first lifting platform 500 can reciprocate in the first direction of the first support frame 300, and the support platform 110 can reciprocate along the second direction on the first lifting platform 500, that is, the support platform 110 can move in the first direction and the second direction; a drill rod assembly 700 and a pressure assembly 800 are arranged on the support platform 110.

[0045] In order to facilitate the movement of vehicles, a layer of fill is usually covered on the soft soil, and the fill usually contains gravel, etc., and the sampler cannot be directly inserted into the soft soil through the fill layer; the drilling assembly can drill holes in the fill layer and form guide holes, which makes it convenient for the soil sampler 900 to be inserted into the soft soil along the guide hole.

[0046] When the soil sampler 900 is inserted into the soft soil, in order to enable the soil sampler 900 to be smoothly inserted into the soft soil, the pressure-applying assembly 800 can apply pressure to the soil sampler 900 at the upper end of the soil sampler 900, thereby enabling the soil sampler 900 to be smoothly inserted into the soft soil; the soil sampler 900 adopts a pressing method, which can reduce the disturbance to the soft soil and improve the reliability of the test compared to the rotary drilling method used in the prior art.

[0047] Reference Figure 2 In an optional embodiment, the first driving assembly 400 includes a first driving motor 401 and a first driving screw 402, the first driving screw 402 is arranged along the first direction of the first support frame 300, the first driving motor 401 is arranged at the first end of the first support frame 300, one end of the first driving screw 402 is connected to the first driving motor 401, and the other end is rotatably configured with the second end of the first support frame 300;

[0048] The first lifting platform 500 is screwed onto the first driving screw rod 402 .

[0049] Reference Figure 3 In an optional embodiment, at least two first guide rails 130 are arranged along the first direction of the first support frame 300, a first slider 120 matching the first guide rail 130 is arranged on the first lifting platform 500, and the first slider 120 is slidably arranged on the first guide rail 130.

[0050] Generally, the first driving motor 401 of the first driving assembly 400 is arranged at one end of the first supporting frame 300, and the first driving rod screw is connected to the first driving motor 401. The first driving motor 401 causes the first driving screw 402 to rotate. Since the first lifting platform 500 cannot rotate, the first lifting platform 500 is lifted and lowered 200 by the action of the first driving screw 402, thereby realizing the lifting and lowering of the supporting platform 110 200.

[0051] Two first guide rails 130 are generally provided on the first support frame 300, and at least two first sliders 120 are provided on the first lifting platform 500. Each first guide rail 130 is provided with at least one first slider 120, so that the first lifting platform 500 can move accurately on the first support frame 300 to realize the adjustment of the drilling assembly and the pressure assembly 800 in the first direction.

[0052] In an optional embodiment, the second driving assembly 600 includes a second driving motor 601 and a second driving screw 602, the second driving screw 602 is arranged along the second direction of the first lifting platform 500, the second driving motor 601 is arranged at one end of the first lifting platform 500, one end of the second driving screw 602 is connected to the second driving motor 601, and the other end is rotatably configured with the other end of the first lifting platform 500;

[0053] The supporting platform 110 is screwed onto the second driving screw rod 602 .

[0054] In an optional embodiment, at least two second guide rails 140 are arranged along the second direction of the first lifting platform 500, a second slider 150 matching the second guide rail 140 is arranged on the supporting platform 110, and the second slider 150 is slidably arranged on the second guide rail 140.

[0055] In some embodiments, the second drive motor 601 is arranged at one end of the first lifting platform 500, the second drive screw 602 is connected to the second drive motor 601, the support platform 110 is screwed on the second drive screw 602, and the second drive motor 601 causes the second drive screw 602 to rotate, thereby causing the support platform 110 to move along the second direction.

[0056] After a guide hole is formed on the soft soil using the drilling assembly, the second drive motor 601 moves the support platform 110, even if the drilling assembly is removed from the guide hole, so that the pressure assembly 800 moves to the top of the guide hole; in the process of inserting the soil extractor 900 into the guide hole, the pressure assembly 800 applies pressure to the soil extractor 900, so that the soil extractor 900 is more easily inserted into the guide hole; after a soil extractor 900 is inserted into the guide hole, another soil extractor 900 is installed on the soil extractor 900, and the pressure assembly 800 continues to apply pressure to the soil extractor 900; according to actual requirements, multiple soil extractors 900 are continuously connected during the insertion process.

[0057] Reference Figure 4 In an optional embodiment, the drill rod assembly 700 includes a drill rod motor 701 and a drill rod body 702, the drill rod motor 701 is disposed on the support platform 110, and one end of the drill rod body 702 is disposed on the drill rod motor 701;

[0058] A conveying pipe is arranged in the drill rod body 702 , and a material outlet for material output is arranged on the drill rod body 702 , and a sealing cover 703 is arranged at the material outlet.

[0059] A conveying pipe is arranged inside the drill rod body 702, and a plurality of discharge ports are arranged on the drill rod body 702; a sealing cover 703 is arranged at the discharge port; when the drill rod body 702 is used to drill a hole, the sealing cover 703 covers the discharge port to prevent foreign matter from entering the conveying pipe from the discharge port during the drilling process.

[0060] Before the drill rod body 702 is inserted into the soil extractor 900, the sealing cover 703 is removed from the discharge port, so as not to affect the material in the conveying pipe from being ejected from the discharge port.

[0061] In an optional embodiment, the pressure-applying assembly 800 includes an oil cylinder, which is disposed at the upper end of the support platform 110 , and a movable end of the oil cylinder can extend to the bottom of the support platform 110 .

[0062] The pressure component 800 is generally a cylinder, the movable end of which can move toward the soil extractor 900, thereby pressing the soil extractor 900 into the soft soil; the pressure component 800 can also be other structures.

[0063] In an optional embodiment, a positioning assembly 160 is disposed on the first support frame 300, and the positioning assembly 160 is located on a side of the first lifting platform 500 away from the first driving assembly 400;

[0064] The positioning assembly 160 includes a positioning sleeve 161 and a plurality of telescopic screws 162 . One end of the telescopic screw 162 is connected to the first support frame 300 , and the other end is connected to the positioning sleeve 161 .

[0065] In order to enable the drill rod body 702 and the soil extractor 900 to move vertically downward, a positioning assembly 160 is provided on the first support frame 300, and the positioning sleeve 161 is connected to the first support frame 300 through a plurality of telescopic screws 162; the telescopic screw 162 can be telescopic, one end of the telescopic screw 162 is hinged to the positioning sleeve 161, and the other end is hinged to the first support frame 300; through the cooperation of a plurality of telescopic screws 162, the position of the positioning sleeve 161 is adjusted.

[0066] In an optional embodiment, a lifting 200 support frame is provided on the support platform 110, and the drill rod assembly 700 is provided on the lifting 200 support frame, and the lifting 200 support frame is used to lift the drill rod assembly 700 200 in a first direction.

[0067] In order to prevent the drill rod assembly 700 from affecting the operation of the pressure assembly 800, or to avoid the pressure assembly 800 process, a lifting 200 support frame is set on the support platform 110, and the drill rod assembly 700 is set on the lifting 200 support frame. When the drill rod assembly 700 is not needed, the drill rod assembly 700 is moved away from the support platform 110 to prevent the pressure assembly 800 from being affected by the drill rod assembly 700 and the pressure assembly 800 from being set too long.

[0068] In an optional embodiment, a crawler vehicle 100 is further included, and one end of the first support frame 300 away from the first driving assembly 400 is hinged to the crawler vehicle 100;

[0069] A lifting assembly 200 is provided on the crawler vehicle 100 , one end of the lifting assembly 200 is connected to the crawler vehicle 100 , and the other end is connected to the first support frame 300 ; the lifting assembly 200 is used to make the first support frame 300 .

[0070] The crawler vehicle 100 is provided with a lifting 200 component, which is generally a hydraulic cylinder. One end of the hydraulic cylinder is hinged to the crawler vehicle 100, and the other end is hinged to the first support frame 300. When the first support frame 300 needs to be vertical, the hydraulic cylinder extends to make the first support frame 300 vertical, and then drilling and other operations are performed on the soft soil.

[0071] When use is completed, the lifting 200 assembly causes the first support frame 300 to be tilted or laid flat on the crawler vehicle 100 , thereby lowering the height of the crawler vehicle 100 and facilitating the transportation of the crawler vehicle 100 .

[0072] Since the surface bearing capacity of soft soil is very low, if the crawler vehicle 100 tilts during operation, thereby causing the soil extractor 900 to deflect, the telescopic screw 162 is adjusted to reset it; generally, the fixed sleeve is connected to the positioning sleeve 161 through three telescopic screws 162.

[0073] The soft soil in-situ solidification test device does not need to move the crawler vehicle 100 in the three processes of hole drawing, pressing the soil sampler 900, and stirring and solidifying. It only needs to move the supporting platform 110. This not only simplifies the construction process, but also prevents the crawler vehicle 100 from deflecting in the soft soil when it moves frequently.

[0074] The soft soil in-situ solidification test device is provided with a positioning sleeve 161, which can not only fix the soil extractor 900 when it is pressed into the soil, but also correct it when the soil extractor 900 is misaligned, thereby ensuring the smooth progress of the subsequent solidification test.

[0075] If the soil extractor 900 is tilted or displaced, it will be difficult for the drill rod body 702 of the subsequent solidification test to smoothly stir and spray the soft soil in the soil extractor 900 to reinforce it.

[0076] The first lifting platform 500 is slidably arranged on the first support frame 300 of the soft soil in-situ solidification test device provided by the present invention, and the support platform 110 is arranged on the first lifting platform 500, so that the drill rod assembly 700 on the support platform 110 can make a hole in the soft soil, and then the support platform 110 is moved on the second support platform 110, so that the pressure assembly 800 can correspond to the hole; the soil extractor 900 is inserted into the hole, and the pressure assembly 800 makes the soil extractor 900 enter the hole, the pressure assembly 800 is raised, and other soil extractors are installed on the soil extractor 900. Device 900, according to actual needs, multiple soil extractors 900 are pressed into the guide hole in sequence; then the support platform 110 is moved on the first lifting platform 500 to make the drill rod assembly 700 correspond to the soil extractor 900, and the drill rod assembly 700 is inserted into the soil extractor 900 for stirring and solidification; different curing agent dosage tests are carried out on site. When the test is completed, the pressure assembly 800 takes out the soil extractor 900, and then the reinforced soil in the soil extractor 900 is cured, and then various indoor tests are carried out to obtain some properties of the reinforced soil, especially the strength properties.

[0077] Since the solidification test is carried out on-site, the solidified soil will not be disturbed by the process of soil extraction and transportation, which greatly improves the authenticity of the test data and provides more reliable test data for subsequent engineering construction.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soft soil in-situ solidification test device, characterized in that: It comprises a first support frame (300), on which a first lifting platform (500) is slidably arranged, and the first lifting platform (500) is capable of moving along a first direction of the first support frame (300); A first driving assembly (400) is provided at one end of the first supporting frame (300), the first driving assembly (400) is connected to the first lifting platform (500), and the first driving assembly (400) enables the first lifting platform (500) to reciprocate along a first direction; A support platform (110) is arranged on the first lifting platform (500), and the support platform (110) is capable of reciprocating on the first lifting platform (500) along a second direction; A second driving assembly (600) is provided at one end of the first lifting platform (500) in the second direction, and the second driving assembly (600) enables the supporting platform (110) to reciprocate along the second direction; A drill rod assembly (700) and a pressure assembly (800) are arranged on the support platform (110), wherein the drill rod assembly (700) is used for drilling holes, and the pressure assembly (800) is used for pressing the soil sampler (900) into the guide hole drilled by the drill rod assembly (700); The first direction is the length direction of the first support frame (300), and the second direction is the width direction of the first support frame (300).

2. The soft soil in-situ solidification test device according to claim 1, characterized in that: The first driving assembly (400) comprises a first driving motor (401) and a first driving screw (402), wherein the first driving screw (402) is arranged along a first direction of the first supporting frame (300), the first driving motor (401) is arranged at a first end of the first supporting frame (300), one end of the first driving screw (402) is connected to the first driving motor (401), and the other end is rotatably arranged with the second end of the first supporting frame (300); The first lifting platform (500) is screwed onto the first driving screw rod (402).

3. The soft soil in-situ curing test device according to claim 1, characterized in that: At least two first guide rails (130) are arranged along the first direction of the first support frame (300), a first slider (120) matching the first guide rail (130) is arranged on the first lifting platform (500), and the first slider (120) is slidably arranged on the first guide rail (130).

4. The soft soil in-situ solidification test device according to claim 3, characterized in that: The second driving assembly (600) comprises a second driving motor (601) and a second driving screw (602), the second driving screw (602) being arranged along the second direction of the first lifting platform (500), the second driving motor (601) being arranged at one end of the first lifting platform (500), one end of the second driving screw (602) being connected to the second driving motor (601), and the other end being rotatably arranged with the other end of the first lifting platform (500); The support platform (110) is screwed onto the second drive screw (602).

5. The soft soil in-situ solidification test device according to claim 4, characterized in that: At least two second guide rails (140) are arranged along the second direction of the first lifting platform (500), a second slider (150) matching the second guide rail (140) is arranged on the supporting platform (110), and the second slider (150) is slidably arranged on the second guide rail (140).

6. The soft soil in-situ solidification test device according to claim 1, characterized in that: The drill rod assembly (700) comprises a drill rod motor (701) and a drill rod body (702); the drill rod motor (701) is arranged on the support platform (110); and one end of the drill rod body (702) is arranged on the drill rod motor (701); A conveying pipe is arranged inside the drill rod body (702), and a discharge port for material output is arranged on the drill rod body (702), and a sealing cover (703) is arranged on the discharge port.

7. The soft soil in-situ solidification test device according to claim 6, characterized in that: The pressure-applying assembly (800) comprises an oil cylinder, which is disposed at the upper end of the support platform (110), and the movable end of the oil cylinder can extend to the bottom of the support platform (110).

8. The soft soil in-situ solidification test device according to claim 1, characterized in that: A positioning assembly (160) is disposed on the first support frame (300), and the positioning assembly (160) is located on a side of the first lifting platform (500) away from the first driving assembly (400); The positioning assembly (160) comprises a positioning sleeve (161) and a plurality of telescopic screws (162); one end of the telescopic screw (162) is connected to the first support frame (300), and the other end is connected to the positioning sleeve (161).

9. The soft soil in-situ solidification test device according to claim 1, characterized in that: A lifting (200) support frame is arranged on the support platform (110), and the drill rod assembly (700) is arranged on the lifting (200) support frame. The lifting (200) support frame is used to lift (200) the drill rod assembly (700) along a first direction.

10. The soft soil in-situ solidification test device according to any one of claims 1 to 9, characterized in that: It also includes a crawler vehicle (100), wherein one end of the first support frame (300) away from the first drive assembly (400) is hinged to the crawler vehicle (100); A lifting (200) component is provided on the crawler vehicle (100), one end of the lifting (200) component is connected to the crawler vehicle (100), and the other end is connected to the first support frame (300); the lifting (200) component is used to move the first support frame (300).

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