A soft soil solidification device suitable for different depths

Abstract

This invention provides a soft soil stabilization device suitable for different depths, relating to the field of soft soil stabilization technology. It includes a robotic arm and a mixing tank. The robotic arm is mounted on one side of an excavator body. A stabilization component is installed at one end of the robotic arm via a quick-connect bracket. The stabilization component includes a support shell. An extension column is slidably mounted inside the support shell via an auxiliary pulley. A mounting frame is mounted at the lower end of the extension column via a combined base. A support rod is rotatably mounted inside the mounting frame. The support rod has soil-turning blades. Agent nozzles for spraying stabilizing agent are provided on both sides of the mounting frame. By using an extension column connected inside the support shell, and with the extension column capable of extension and retraction, the mounting frame and its internal components can extend to the required stabilization depth. This avoids the problem that excessive depth resistance can affect the descent performance of the robotic arm and prevent the required stabilization depth from being met.

Description

Technical Field

[0001] This invention relates to the field of soft soil stabilization technology, and more specifically, to a soft soil stabilization device suitable for different depths. Background Technology

[0002] In soft soil foundation treatment engineering, soft soil solidification is a common method aimed at improving the strength and stability of soft soil to meet the needs of various engineering constructions. Solidification operations require the use of solidification devices, such as the in-situ solidification device for silty sites described in patent publication number CN211972094U. The solidification device includes a walking mechanism and a multi-degree-of-freedom robotic arm mounted on the walking mechanism, as well as a mixing mechanism. The mixing mechanism includes: a drive wheel mechanism and a drive wheel drive mechanism; a first driven wheel mechanism located below the drive wheel; a transmission chain surrounding each drive wheel mechanism and the first driven wheel mechanism, with multiple sets of cutter assemblies spaced apart on the transmission chain; and a solidifying agent delivery mechanism with an outlet extending to the first driven wheel.

[0003] Due to the different environments of soft soil, shallow soft soil has a relatively low water content because it is affected by atmospheric precipitation and evaporation, while deep soft soil has a higher water content because it has been soaked in groundwater for a long time. These differences mean that the material ratio of the solidifying agent required for deep and shallow soft soil should be different.

[0004] However, the aforementioned curing devices, when used in curing operations, generally employ a single curing agent, which cannot adequately address the varying characteristics of soft soil at different depths. When using a curing agent formulation suitable for shallow soft soil, the deep soft soil may not achieve the desired curing effect due to insufficient curing agent or improper formulation, resulting in a lack of significant strength improvement and potential excessive settlement during subsequent engineering loading. Conversely, if the curing agent formulation is geared towards deep soft soil, the shallow soft soil may experience over-curing due to excessive curing agent, leading to soil structure damage and impacting its permeability and ecological environment. Even after completing the curing of deep soft soil, using another curing agent would increase the overall curing time, which is not conducive to large-area continuous curing operations. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a soft soil solidification device suitable for different depths, solving the problem that existing solidification devices cannot simultaneously solidify soft soil at different depths, resulting in the inability to achieve the expected solidification effect after solidification.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A soft soil stabilization device suitable for different depths includes a robotic arm and a batching box. The robotic arm is mounted on one side of the excavator body. A stabilization component is installed at one end of the robotic arm via a quick-connect bracket. The stabilization component includes a support shell. An extension column is slidably mounted inside the support shell via an auxiliary pulley. An installation frame is mounted at the lower end of the extension column via a combined base. A support rod is rotatably mounted inside the installation frame. The support rod is equipped with soil-turning blades. Agent nozzles for spraying stabilizing agent are provided on both sides of the installation frame.

[0008] Two mixing bins are provided, each mixing bin has a conveying pump installed at its outlet, and each conveying pump has a connecting pipe installed at its discharge port. Both connecting pipes are connected to the curing component.

[0009] Preferably, a sealing sleeve rod is fixedly installed in the middle of the inside of the support housing, and series sleeve rods are fixedly installed on both sides of the inside of the support housing. A fixing groove is opened in the middle of the extension column. A driving piston rod is provided inside the sealing sleeve rod. The lower end of the driving piston rod is fixedly connected to the fixing groove. Series through holes are opened on both sides of the extension column. The inside of the series through holes is sealed and movablely connected to the corresponding series sleeve rod.

[0010] Preferably, the mounting bracket has a power channel and a medicine channel staggered inside, and the upper ends of the power channel and the medicine channel are respectively connected to two power connectors and a medicine connector. Medicine nozzles are fixedly installed on the outer ends of the medicine channels on both sides, and the lower end of the series through hole is connected to the corresponding power connector.

[0011] The mounting frame has a sealing rotating groove at the bottom, and a synchronous turntable is rotatably installed inside the sealing rotating groove. Support rods are installed on both sides of the synchronous turntable. The bottom of the power channels on both sides are connected to the two sides of the sealing rotating groove. Several mating grooves are opened on the surface of the synchronous turntable.

[0012] Preferably, the extension support has a transfer cavity inside, and a pair of lower channels and docking holes are respectively opened at both ends of the transfer cavity, with the lower end of the lower channel docking with the corresponding agent connector.

[0013] Preferably, two feed connectors are fixedly installed on one side of the support housing. The two feed connectors are respectively connected to adjacent infusion branch pipes. A connecting hose is installed at the other end of each of the two feed connectors. The connecting hose is fixedly connected to an adjacent docking hole.

[0014] A groove is provided on one side of the extension column, and a support top plate is movably installed on the inner wall of the groove by an auxiliary spring. The support top plate supports two connecting hoses.

[0015] Preferably, the support housing has an opening on one side and a cover plate is installed at the opening. A fixing frame is fixedly installed on one side of the inner wall of the opening of the support housing. A movable connecting plate is slidably installed inside the fixing frame. Two extension baffles are fixedly installed on the inner side of the movable connecting plate. Two fixed baffles are installed on the other side of the inner wall of the opening of the support housing. The two fixed baffles are staggered. The extension baffles are movably connected to the fixed baffles. A transition groove is provided at one end of the extension baffle.

[0016] Preferably, a threaded sliding sleeve is fixedly installed on the middle of the outer side of the movable connecting plate, and an adjusting screw is rotatably installed on the outer side of the fixed frame through a bearing seat, the adjusting screw body being threadedly engaged with the threaded sliding sleeve.

[0017] Preferably, the lower channel has a sealing groove at its upper end, and a reserved groove and a movable hole are respectively provided on both sides of the sealing groove. A sealing slider is provided inside the sealing groove and the reserved groove. A reset spring is provided inside the sealing slider and between the reserved groove. A triggering rod is provided between the sealing slider and the movable hole. The outer end of the triggering rod is limited by an expansion baffle and a fixed baffle.

[0018] Preferably, the upper end of the support housing is provided with an exchange port, an oil supply pump is fixedly installed at the upper end of the exchange port, an oil extraction pump is fixedly installed on one side of the exchange port, an oil storage tank is fixedly installed on the outside of the support housing, and one end of the oil supply pump and the oil extraction pump are respectively connected to the oil storage tank through two connecting pipes.

[0019] Preferably, each of the series sleeves is equipped with an oil supply connector at its upper end, and several oil supply pipes are provided on the outside of the robotic arm. The two oil supply connectors are respectively connected to the oil supply components of the excavator body through the oil supply pipes.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This application is based on the fact that the excavator's mechanical arm, which is mounted on the excavator body, can be quickly moved and adjusted to meet the solidification treatment of shallow soft soil. The excavator body can also quickly move to the solidification position. Compared with existing solidification devices, this application can achieve efficient solidification. In order to avoid the problem that the mechanical arm cannot move vertically downwards and the depth is insufficient due to excessive depth, this application adopts an extension column connected inside the support shell. With the extension column being telescopic, the mounting frame and its internal components can extend to the required solidification depth. This avoids the problem that the deep resistance due to excessive depth will affect the descent performance of the mechanical arm and fail to meet the required solidification depth.

[0022] 2. This application uses two mixing bins, and the weight ratio of the materials in each mixing bin is adjusted according to the depth. This allows the curing agent with the appropriate ratio to be used for curing operations based on factors such as the internal humidity or density of the soft soil. This ensures that the curing effect of this application on soft soil at different depths will not have significant differences.

[0023] 3. The curing components enable the synchronous turntable to rotate stably and continuously under different curing depths. During the rotation of the synchronous turntable, the supporting rotating rods and soil turning blades on both sides will rotate, turning the surrounding soft soil. This not only facilitates subsequent entry into deeper soft soil but also allows the curing agent to repeatedly mix and react with the soft soil.

[0024] 4. By starting the delivery pump, the curing agent can be delivered to the inlet joint and enter the corresponding connecting hose. During delivery, the curing agent will pass through the delivery branch pipe, connecting hose, transfer cavity, lower channel, and agent channel in sequence from the delivery pump, and finally be sprayed out from the agent nozzle. The above structure achieves flexible connection, ensuring that the curing agent can be stably sprayed from the mixing tank to the agent nozzle at different depths. Compared with the existing device, this application can cure at the required depth as needed, avoiding the problem of difficulty in curing agent spraying or failure to mix soft soil smoothly due to depth adjustment.

[0025] 5. The curing component also allows the present application to switch between two curing agents as needed. This switching component is a mechanical structure and does not require additional electronic equipment control, thereby enabling automatic and timely switching of the required curing agent ratio. This eliminates the need for operators to pay attention to the switching of curing agents during curing, which is beneficial to personnel. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the curing component;

[0028] Figure 3 This is a side view of the curing component.

[0029] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0030] Figure 5 This is a front view structural diagram of the curing component;

[0031] Figure 6 yes Figure 5 Schematic diagram of cross-sectional structure at point BB

[0032] Figure 7 yes Figure 6 Enlarged structural diagram at point a;

[0033] Figure 8 yes Figure 5 Schematic diagram of the cross-sectional structure at the CC section;

[0034] Figure 9 This is a top view of the curing component.

[0035] Figure 10 yes Figure 9 Schematic diagram of the cross-sectional structure at point DD;

[0036] Figure 11 This is a three-dimensional structural diagram of the supporting shell;

[0037] Figure 12 This is a bottom view of the supporting shell structure.

[0038] Figure 13 yes Figure 12 Schematic diagram of the cross-sectional structure at the EE section;

[0039] Figure 14 This is a three-dimensional structural diagram of the extended support column;

[0040] Figure 15 This is a front view structural diagram of the extended support column;

[0041] Figure 16 yes Figure 15 Schematic diagram of the cross-sectional structure at the middle FF section;

[0042] Figure 17 This is a 3D structural diagram of the mounting bracket;

[0043] Figure 18 This is a top view of the mounting bracket.

[0044] Figure 19 yes Figure 18 Schematic diagram of the cross-sectional structure at the middle GG point;

[0045] Figure 20 yes Figure 18 Schematic diagram of the cross-sectional structure at point HH;

[0046] Figure 21 This is a front view structural diagram of the mounting bracket;

[0047] Figure 22 yes Figure 21 Schematic diagram of the cross-sectional structure at point II.

[0048] In the diagram: 1. Excavator body; 101. Mechanical arm; 102. Oil supply pipe; 2. Curing component; 201. Support housing; 2011. Auxiliary pulley; 2012. Exchange port; 2013. Sealing sleeve; 2014. Drive piston rod; 2015. Feed connector; 2016. Connecting hose; 2017. Auxiliary spring; 2018. Support top plate; 2019. Series sleeve; 202. Mounting bracket; 2021. Sealing rotary groove; 2022. Synchronous turntable; 2023. Support rotating rod; 2024. Soil turning blade; 2025. Combined base; 2026. Power connector; 2027. Chemical connector; 2028. Mating groove; 203. Extension support; 2031. Fixing groove; 2032. Series through hole; 2033 1. Groove; 2034. Docking hole; 2035. Transfer cavity; 2036. Sealing groove; 2037. Reserved groove; 2038. Lower channel; 2039. Movable hole; 204. Cover plate; 2041. Trigger rod; 2042. Sealing slider; 2043. Return spring; 2044. Fixing bracket; 2045. Adjusting screw; 2046. Moving connecting plate; 2047. Extension baffle; 2048. Fixed baffle; 2049. Transition groove; 20410. Threaded sleeve; 205. Oil supply connector; 206. Power channel; 207. Agent channel; 208. Agent nozzle; 3. Infusion branch pipe; 4. Mixing box; 5. Transfer pump; 6. Quick-connect support; 7. Oil storage tank; 8. Oil supply pump; 9. Connecting pipe; 10. Oil pump. Detailed Implementation

[0049] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0050] like Figures 1 to 10 As shown, a soft soil stabilization device suitable for different depths includes a robotic arm 101 and a batching box 4. The robotic arm 101 is set on one side of the excavator body 1. A stabilization component 2 is installed at one end of the robotic arm 101 via a quick-connect bracket 6. The stabilization component 2 includes a support shell 201. An extension column 203 is slidably installed inside the support shell 201 via an auxiliary pulley 2011. An installation frame 202 is installed at the lower end of the extension column 203 via a combination base 2025. A support rotating rod 2023 is rotatably installed inside the installation frame 202. A soil turning blade 2024 is provided on the body of the support rotating rod 2023. Agent nozzles 208 for spraying stabilizing agent are provided on both sides of the installation frame 202.

[0051] Two batching bins 4 are provided. Each batching bin 4 has a conveying pump 5 installed at its outlet. Each conveying pump 5 has a connecting pipe 9 installed at its discharge port. Both connecting pipes 9 are connected to the curing component 2.

[0052] This application is based on the fact that the mechanical arm 101 installed on the excavator body 1 can be quickly moved and adjusted to meet the solidification treatment of shallow soft soil, and the excavator body 1 can quickly move the solidification position. Compared with the existing solidification device, this application can achieve efficient solidification. In order to avoid the situation that the mechanical arm 101 cannot move vertically downward and the depth is insufficient due to the excessive depth, this application adopts an extension column 203 connected inside the support shell 201. When the extension column 203 can be extended and retracted, the mounting frame 202 and its internal components can be extended to the required solidification depth. This avoids the problem that the deep resistance due to the excessive depth will affect the descent performance of the mechanical arm 101 and fail to meet the required solidification depth.

[0053] This application uses two mixing boxes 4, and the weight ratio of the materials in each mixing box 4 is adjusted according to the depth. This allows the curing agent with the appropriate ratio to be used for curing operations based on factors such as the internal humidity or density of the soft soil. This ensures that the curing effect of this application on soft soil at different depths will not have significant differences.

[0054] In this embodiment, a sealing sleeve rod 2013 is fixedly installed in the middle of the support housing 201, and series sleeve rods 2019 are fixedly installed on both sides of the support housing 201. A fixing groove 2031 is opened in the middle of the extension column 203. A driving piston rod 2014 is provided inside the sealing sleeve rod 2013. The lower end of the driving piston rod 2014 is fixedly connected to the fixing groove 2031. Series through holes 2032 are opened on both sides of the extension column 203. The inside of the series through holes 2032 is sealed and movablely connected to the corresponding series sleeve rods 2019.

[0055] The extension support 203 is connected to the series through hole 2032 via the series sleeve rod 2019, and the lower end of the drive piston rod 2014 is fixedly connected to the fixing groove 2031. This allows the distance between the extension support 203 and the support housing 201 to be adjusted without interfering with the curing operation. Furthermore, the above structure can be used in conjunction with the oil supply pump 8 and the oil extraction pump 10 to control the movement and limit of the extension support 203, ensuring the stability of the extension support 203 during the shrinkage process.

[0056] like Figures 1 to 4 , Figures 17 to 22As shown, the mounting bracket 202 has a power channel 206 and a chemical channel 207 staggered inside. The upper ends of the power channel 206 and the chemical channel 207 are respectively connected to two power connectors 2026 and chemical connectors 2027. Chemical nozzles 208 are fixedly installed on the outer ends of the chemical channels 207 on both sides. The lower end of the series through hole 2032 is connected to the corresponding power connector 2026.

[0057] The mounting bracket 202 has a sealing rotating groove 2021 at the bottom. A synchronous turntable 2022 is rotatably installed inside the sealing rotating groove 2021. Supporting rotating rods 2023 are installed on both sides of the synchronous turntable 2022. The bottom of the power channels 206 on both sides are connected to the two sides of the sealing rotating groove 2021. Several mating grooves 2028 are opened on the surface of the synchronous turntable 2022.

[0058] Hydraulic oil is supplied through the oil supply component of the excavator body 1. Under the action of the oil supply pipe 102, one of the oil supply joints 205 receives hydraulic oil, which then enters the tandem sleeve 2019. Under the action of the tandem through hole 2032, stable oil supply is achieved during the extension and retraction of the extension strut 203. Subsequently, the oil enters one of the power joints 2026 and the corresponding power channel 206. With continuous oil injection, the hydraulic pressure, in conjunction with several mating grooves 2028, causes the synchronous turntable 2022 to rotate. During the rotation of the synchronous turntable 2022, hydraulic oil is supplied from the power supply on the other side. The discharge is discharged through channel 206 and sequentially passes through another set of power joints 2026, series through holes 2032, series sleeves 2019, and oil supply joints 205. Finally, it flows back to the oil supply component of the excavator body 1 through another oil supply pipe 102. The above structure allows the synchronous turntable 2022 to rotate stably and continuously under different curing depths. During the rotation of the synchronous turntable 2022, the support rotating rods 2023 and the soil turning blades 2024 on both sides will rotate to turn the surrounding soft soil. This not only facilitates subsequent entry into deeper soft soil but also allows the curing agent to repeatedly mix and react with the soft soil.

[0059] In this application, the extension support 203 has a transfer cavity 2035 inside, and a pair of lower channels 2038 and docking holes 2034 are respectively opened at both ends of the transfer cavity 2035. The lower end of the lower channel 2038 is docked with the corresponding agent connector 2027.

[0060] The lower channel 2038 connects with the agent connector 2027. When the curing agent is discharged from the lower channel 2038, the curing agent will enter the agent channel 207 and finally be sprayed from the agent nozzle 208 to the two side support rods 2023, so as to achieve stable injection of the curing agent and avoid the influence of depth.

[0061] like Figures 1 to 6 , Figure 16As shown, two feed connectors 2015 are fixedly installed on one side of the support housing 201. The two feed connectors 2015 are respectively connected to the adjacent infusion branch pipe 3. The other end of the two feed connectors 2015 is respectively equipped with a connecting hose 2016, and the connecting hose 2016 is fixedly connected to the adjacent docking hole 2034.

[0062] By starting the delivery pump 5, the curing agent can be delivered to the feed inlet 2015 and enter the corresponding connecting hose 2016. During delivery, the curing agent will pass from the delivery pump 5 through the infusion branch pipe 3, the connecting hose 2016, the transfer cavity 2035, the lower channel 2038, and the agent channel 207 in sequence, and finally be sprayed out from the agent nozzle 208. The above structure achieves a flexible connection, ensuring that the curing agent can be stably sprayed from the mixing tank 4 to the agent nozzle 208 at different depths. Compared with the existing device, this application can cure at the required depth as needed, avoiding the problem of difficulty in spraying the curing agent or failure to mix the soft soil smoothly due to depth adjustment.

[0063] A groove 2033 is provided on one side of the extension column 203. A support top plate 2018 is movably installed on the inner wall of the groove 2033 through an auxiliary spring 2017. The support top plate 2018 supports two connecting hoses 2016.

[0064] The auxiliary spring 2017 provides real-time support to the support top plate 2018, thereby supporting the connecting hoses 2016 on both sides of the support top plate 2018 upwards. This limits the position of the connecting hoses 2016, preventing them from getting tangled inside the groove 2033 and improving the stability of this application during operation.

[0065] like Figures 1 to 10 and Figure 16 As shown, the support housing 201 has an opening on one side and a cover plate 204 is installed at the opening. A fixed frame 2044 is fixedly installed on one side of the inner wall of the opening of the support housing 201. A movable connecting plate 2046 is slidably installed inside the fixed frame 2044. Two extension baffles 2047 are fixedly installed on the inner side of the movable connecting plate 2046. Two fixed baffles 2048 are installed on the other side of the inner wall of the opening of the support housing 201. The two fixed baffles 2048 are staggered. The extension baffles 2047 are movably connected to the fixed baffles 2048. One end of the extension baffle 2047 is provided with a transition groove 2049.

[0066] It should be noted that a threaded sliding sleeve 20410 is fixedly installed on the middle of the outer side of the movable connecting plate 2046, and an adjusting screw 2045 is rotatably installed on the outer side of the fixed frame 2044 through a bearing seat. The body of the adjusting screw 2045 is threadedly engaged with the threaded sliding sleeve 20410.

[0067] By rotating the adjusting screw 2045, and utilizing the sliding limit between the movable connecting plate 2046 and the fixed frame 2044, the position of the two side expansion baffles 2047 is adjusted under the threaded engagement of the adjusting screw 2045 body and the threaded sliding sleeve 20410. This adjusts the total length between the two side expansion baffles 2047 and the fixed baffle 2048 to meet the needs of switching curing agents at different depths. The adjustment depth can be adjusted according to the depth of the soft soil.

[0068] In the specific configuration, a sealing groove 2036 is provided at the upper end of the lower channel 2038. A reserved groove 2037 and an movable hole 2039 are respectively provided on both sides of the sealing groove 2036. A sealing slider 2042 is provided inside the sealing groove 2036 and the reserved groove 2037. A return spring 2043 is provided between the sealing slider 2042 and the reserved groove 2037. A triggering rod 2041 is provided between the sealing slider 2042 and the movable hole 2039. The outer end of the triggering rod 2041 is limited and cooperates with the expansion baffle 2047 and the fixed baffle 2048.

[0069] The extension baffle 2047 and the fixed baffle 2048 are movably connected, and both the extension baffle 2047 and the fixed baffle 2048 can limit the length of the trigger rod 2041. Therefore, during the extension and retraction of the extension column 203, the trigger rods 2041 on both sides will move accordingly. One trigger rod 2041 will engage with the corresponding extension baffle 2047 and fixed baffle 2048 for limiting. Under this limiting condition, the trigger rod 2041 will push the sealing slider 2042 to seal and block the upper end of the lower channel 2038, thereby shutting off the curing agent delivery on the corresponding side. On the other side of the channel, since there is no limiting effect from the expansion baffle 2047 and the fixed baffle 2048, the lower end of the sealing slider 2042 is opened by the action of the return spring 2043, and the upper end of the lower channel 2038 is opened, thereby opening the curing agent delivery channel on the corresponding side. Through the above structure, this application can switch between two curing agents as needed. Moreover, this switching component is a mechanical structure and does not require additional electronic equipment control, so it can automatically and timely switch the required ratio of curing agent, so that the operator does not need to pay attention to the switching of curing agent during curing, which is beneficial to personnel use.

[0070] In the construction environment, the length of the infusion branch pipe 3 is over 100 meters. Therefore, in order to ensure that the curing agent can be switched in time, the above structure is used. However, when switching pipeline circuits, the curing agent within the first 100 meters of the infusion branch pipe 3 needs to be completely sprayed out to achieve the switching of different curing agents, which will affect the curing effect.

[0071] like Figures 1 to 10As shown, the upper end of the support housing 201 is provided with an exchange port 2012. An oil supply pump 8 is fixedly installed on the upper end of the exchange port 2012. An oil extraction pump 10 is fixedly installed on one side of the exchange port 2012. An oil storage tank 7 is fixedly installed on the outside of the support housing 201. One end of the oil supply pump 8 and the oil extraction pump 10 are respectively connected to the oil storage tank 7 through two connecting pipes 9.

[0072] By starting the oil supply pump 8, hydraulic oil inside the oil storage tank 7 is injected into the exchange port 2012. As the hydraulic oil is continuously injected, the drive piston 2014 inside the sealing sleeve 2013 moves. When the drive piston 2014 pushes outward, it will drive the extension support 203 to move outward, thereby extending the extension support 203 to meet the solidification of deep soft soil. Similarly, when the oil pump 10 is started, the internal hydraulic oil is extracted. As the hydraulic oil is extracted, the drive piston 2014 will contract inward, which will also reset the extension support 203 to achieve the processing of shallow soft soil. The above structure is sealed internally to meet the contraction function and is not affected by external interference. The oil supply pump 8 and the oil pump 10 can be controlled by the PCL controller, and only one of the oil supply pump 8 and the oil pump 10 can operate at the same time.

[0073] Each series of connecting rods 2019 is equipped with an oil supply connector 205 at its upper end, and several oil supply pipes 102 are provided on the outside of the robotic arm 101. Two oil supply connectors 205 are connected to the oil supply component of the excavator body 1 through the oil supply pipes 102. The oil supply component is generally connected to the foot pedal control of the excavator body 1, so that the operator can drive the support rod 2023 from inside the excavator body 1.

[0074] The working principle of this soft soil stabilization device applicable to different depths:

[0075] When using, first, materials with different proportions should be mixed in batching box 4 according to the requirements, taking into account the ratio of biological enzyme soil stabilizer to inorganic soil stabilizer and the ratio of moisture content between shallow soft soil and deep soft soil, for subsequent transportation.

[0076] The operator then starts the excavator body 1 and moves it to the required curing area. Then, oil is supplied through the oil supply component of the excavator body 1. Under the action of the oil supply pipe 102, the hydraulic pressure and several mating grooves 2028 are used to make the synchronous turntable 2022 rotate. During the rotation of the synchronous turntable 2022, the support rods 2023 on both sides and the soil turning blades 2024 will rotate. As needed, the oil supply pump 8 is started to control the extension column 203 to move outward, thereby realizing the extension of the extension column 203. It gradually extends to the deepest point required for processing. During curing, it first extends to the deepest point. As it is retracted upward, the curing agent is sprayed out and reacts with the soft soil until the extension column 203 is reset.

[0077] Once the deepest point is reached, the delivery pump 5 is activated to deliver the required amount of curing agent to the soil turning blade 2024 and spray it outwards, achieving a full reaction between the curing agent and the soft soil, thus solidifying the deep soft soil. Subsequently, the oil pump 10 is used to reset the extension support 203. During the reset process, when the agent nozzle 208 enters the shallow soft soil, the extension baffle 2047 and the fixed baffle 2048 are used to limit the movement, thereby switching the curing agent and achieving targeted solidification of the shallow soft soil.

[0078] It should be noted that existing inorganic soil stabilizers, mainly composed of cement, lime, and fly ash, have the advantages of good stability and low cost. However, the production process of cement and lime has high carbon emissions, and the stabilizers for soft soil have shortcomings such as easy cracking and insufficient water resistance. Ionic and organic soil stabilizers have the advantages of low dosage and easy strength control, but the application range of the stabilizers is narrow, and some polymer components are prone to aging.

[0079] To address the shortcomings of existing single-component bio-enzyme soil stabilizers and single-component organic or inorganic soil stabilizers in stabilizing soft soil, such as insufficient stabilization effect and need for improved durability, this application proposes a bio-enzyme composite soil stabilizer. Using a bio-enzyme soil stabilizer as the base material, it incorporates appropriate specific components of inorganic or organic soil stabilizers, along with a small amount of additives, resulting in a cost-effective bio-enzyme composite soil stabilizer. Orthogonal experiments or response surface methodology are used to study the effects of the dosage and age of the inorganic and organic soil stabilizers and additives on the stabilization of soft soil by the bio-enzyme composite soil stabilizer, thereby obtaining the optimal formulation for stabilizing soft soil with the novel bio-enzyme composite soil stabilizer.

[0080] It is important to note that before carrying out the solidification construction, it is necessary to select a site for the soft soil application, conduct on-site tests using the developed bio-enzyme composite soil solidifier and construction process, and carry out corresponding quality tests. Furthermore, the specific material ratios for different depth ranges should be adjusted according to the required fixing depth to ensure that subsequent solidification operations can adapt to different depth adjustments and perform corresponding solidification treatments.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A soft soil stabilization device suitable for different depths, comprising a robotic arm (101) and a batching box (4), wherein the robotic arm (101) is disposed on one side of an excavator body (1), characterized in that: One end of the robotic arm (101) is equipped with a curing component (2) via a quick-connect bracket (6). The curing component (2) includes a support housing (201). An extension column (203) is slidably installed inside the support housing (201) via an auxiliary pulley (2011). An installation frame (202) is installed at the lower end of the extension column (203) via a combination base (2025). A support rotating rod (2023) is rotatably installed inside the installation frame (202). The support rotating rod (2023) is provided with soil turning blades (2024) on its shaft. A chemical nozzle (208) for spraying curing agent is provided on both sides of the installation frame (202). Two batching boxes (4) are provided. Each batching box (4) is equipped with a conveying pump (5) at its outlet. Each conveying pump (5) is equipped with a connecting pipe (9) at its discharge port. Both connecting pipes (9) are connected to the curing component (2). A sealing sleeve rod (2013) is fixedly installed in the middle of the interior of the support housing (201), and series sleeve rods (2019) are fixedly installed on both sides of the interior of the support housing (201). A fixing groove (2031) is opened in the middle of the extension column (203). A driving piston rod (2014) is provided inside the sealing sleeve rod (2013). The lower end of the driving piston rod (2014) is fixedly connected to the fixing groove (2031). Series through holes (2032) are opened on both sides of the extension column (203). The inside of the series through holes (2032) is sealed and movablely connected to the corresponding series sleeve rods (2019). The mounting bracket (202) has a power channel (206) and a medicine channel (207) staggered inside. The upper ends of the power channel (206) and the medicine channel (207) are respectively connected to two power connectors (2026) and a medicine connector (2027). The outer ends of the medicine channels (207) on both sides are fixedly installed with medicine nozzles (208). The lower end of the series through hole (2032) is connected to the corresponding power connector (2026). The extension support (203) has a transfer cavity (2035) inside. A pair of lower channels (2038) and docking holes (2034) are respectively opened at both ends of the transfer cavity (2035). The lower end of the lower channel (2038) is docked with the corresponding agent connector (2027). The supporting housing (201) has an opening on one side and a cover plate (204) is installed at the opening. A fixed frame (2044) is fixedly installed on one side of the inner wall of the opening of the supporting housing (201). A movable connecting plate (2046) is slidably installed inside the fixed frame (2044). Two extension baffles (2047) are fixedly installed on the inner side of the movable connecting plate (2046). Two fixed baffles (2048) are installed on the other side of the inner wall of the opening of the supporting housing (201). The two fixed baffles (2048) are staggered. The extension baffles (2047) are movably connected to the fixed baffles (2048). One end of the extension baffle (2047) is provided with a transition groove (2049). A threaded sleeve (20410) is fixedly installed on the middle of the outer side of the movable connecting plate (2046), and an adjusting screw (2045) is rotatably installed on the outer side of the fixed frame (2044) through a bearing seat. The body of the adjusting screw (2045) is threadedly engaged with the threaded sleeve (20410). The lower channel (2038) has a sealing groove (2036) at its upper end. The sealing groove (2036) has a reserved groove (2037) and a movable hole (2039) on both sides. The sealing groove (2036) and the reserved groove (2037) are both equipped with a sealing slider (2042). The sealing slider (2042) is equipped with a return spring (2043) between it and the reserved groove (2037). The sealing slider (2042) is equipped with a trigger rod (2041) between it and the movable hole (2039). The outer end of the trigger rod (2041) is limited by the expansion baffle (2047) and the fixed baffle (2048).

2. The soft soil stabilization device suitable for different depths according to claim 1, characterized in that: The mounting bracket (202) has a sealing rotating groove (2021) at the bottom. A synchronous turntable (2022) is rotatably installed inside the sealing rotating groove (2021). Supporting rotating rods (2023) are installed on both sides of the synchronous turntable (2022). The bottom of the power channels (206) on both sides are connected to the two sides of the sealing rotating groove (2021). The synchronous turntable (2022) has several mating grooves (2028) on its surface.

3. The soft soil stabilization device suitable for different depths according to claim 2, characterized in that: Two feed connectors (2015) are fixedly installed on one side of the support housing (201). The two feed connectors (2015) are respectively connected to the adjacent infusion branch pipe (3). The other end of the two feed connectors (2015) is respectively equipped with a connecting hose (2016). The connecting hose (2016) is fixedly connected to the adjacent docking hole (2034). The extension support (203) has a groove (2033) on one side. A support top plate (2018) is movably installed on the inner wall of the groove (2033) by an auxiliary spring (2017). The support top plate (2018) supports two connecting hoses (2016).

4. The soft soil stabilization device suitable for different depths according to claim 2, characterized in that: The upper end of the support housing (201) is provided with an exchange port (2012), an oil supply pump (8) is fixedly installed on the upper end of the exchange port (2012), an oil pump (10) is fixedly installed on one side of the exchange port (2012), and an oil storage tank (7) is fixedly installed on the outside of the support housing (201). One end of the oil supply pump (8) and the oil pump (10) are respectively connected to the oil storage tank (7) through two connecting pipes (9).

5. A soft soil stabilization device suitable for different depths according to claim 2, characterized in that: Each of the series sleeves (2019) is equipped with an oil supply connector (205) at its upper end. Several oil supply pipes (102) are provided on the outside of the robotic arm (101). The two oil supply connectors (205) are respectively connected to the oil supply components of the excavator body (1) through the oil supply pipes (102).

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