Solid waste precast pile reinforced soft soil foundation construction equipment and construction method

Abstract

The application discloses a kind of solid waste precast pile reinforced soft soil foundation construction equipment and construction method.The construction equipment includes: object table, conveying mechanism, air bag type pile connector, plug, rotating mechanism and air bag pipe.The conveying mechanism is docked with object table at one end, and the air bag type pile connector has threaded column at one end, and has screw hole on the end face at the other end.Several air bag type pile connectors are connected in sequence by threaded column and screw hole to form precast pile pile connector, and the tail end of the tail end air bag type pile connector is fixedly connected with the plug.The rotating mechanism is fixed on the object table, and the support rod of the rotating mechanism is inclinedly arranged, and the air bag pipe is fixed at the top end of the support rod of the rotating mechanism.The construction equipment of the application can effectively overcome the above problems, effectively improve the detection efficiency, and reduce the possibility of detection result misjudgment.

Description

Technical Field

[0001] This invention relates to the field of soft soil foundation reinforcement technology, and in particular to a construction equipment and method for reinforcing soft soil foundations using precast solid waste piles. Background Technology

[0002] The information disclosed in the background section of this invention is intended only to enhance the understanding of the overall background of this invention and is not necessarily to be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0003] With the rapid advancement of infrastructure construction in my country, the amount of construction waste generated has been increasing year by year. However, most methods of handling construction waste have many drawbacks. Simply dumping or burying construction waste in the open can easily lead to landslides, wasting land resources, endangering personal and property safety, and causing serious environmental pollution. At the same time, the long-term indiscriminate mining of materials such as sand and gravel has caused resource depletion, landslides, and riverbed diversion, severely damaging the natural environment. Recycling and reusing construction solid waste to prefabricate piles for reinforcing soft soil foundations can reduce the environmental pollution and site occupation caused by dumping or disposal, while turning waste into treasure, using locally sourced materials, saving construction costs, and reducing engineering hazards in soft soil foundations during construction. This is of great significance for protecting the environment and achieving sustainable development of the construction industry.

[0004] Precast piles are widely used in engineering projects due to their high bearing capacity, quick and convenient construction, low environmental pollution, reliable pile quality, and good overall technical and economic benefits. However, traditionally, the lowering of precast piles requires manual lifting equipment to hoist them one by one. During lifting and movement, precast piles are prone to detachment, causing pile breakage and other problems, endangering personal safety and affecting the normal use of the precast piles and the construction progress. Furthermore, manual operation of precast piles is inefficient and time-consuming, and precise positioning during pile lowering is difficult, easily leading to misalignment and affecting the overall stability of the pile foundation. Summary of the Invention

[0005] This invention provides a construction device and method for reinforcing soft soil foundations with precast piles made from solid waste. It effectively overcomes the aforementioned problems, improves work efficiency, avoids pile placement deviations and misalignments, and enhances the overall stability between precast piles. Specifically, the technical solution of this invention is as follows.

[0006] First, this invention discloses a construction device for reinforcing soft soil foundations with precast piles made from solid waste, comprising: a platform, a conveying mechanism, an airbag-type pile connector, a plug, a rotating mechanism, and an airbag tube. Specifically: one end of the conveying mechanism is connected to the platform; one end of the airbag-type pile connector has a threaded post, and the other end has a threaded hole; several sections of the airbag-type pile connector are sequentially connected via the threaded post and the threaded hole to form a precast pile connector; the tail end of the airbag-type pile connector is fixedly connected to the plug to anchor the tail end of the precast pile connector into the foundation. Adjacent airbag-type pile connectors are connected via air pipes, and at least one airbag-type pile connector is connected to an external air compressor. The rotating mechanism is fixed to the platform. The airbag tube is fixed to the top of the support rod of the rotating mechanism; a cylindrical airbag is disposed within the inner cavity of the airbag tube and fixed to the inner wall of the airbag tube; the cylindrical airbag is connected to an external air compressor.

[0007] Furthermore, the conveying mechanism includes a first conveyor belt, a second conveyor belt, a third conveyor belt, and a lifter. Specifically: the first conveyor belt is horizontally disposed on the upper surface of the platform and located at the rear of the rotating mechanism; the second conveyor belt is horizontally disposed behind the platform and fixed to the lifter; and the third conveyor belt is horizontally disposed at the rear end of the second conveyor belt and located on a horizontal plane.

[0008] Furthermore, the conveyor belt has baffles on both sides to prevent the precast piles of solid waste from falling off.

[0009] Furthermore, the inner wall of the cylindrical airbag is roughened to increase the friction between it and the airbag-type pile connector.

[0010] Secondly, this invention discloses a construction method for reinforcing soft soil foundations with precast solid waste piles, comprising the following steps: (1) Drill precast pile holes on the soft soil foundation that needs to be reinforced, and set the parts of the above construction equipment except for the airbag-type pile connector and plug on the ground on one side of the pile hole.

[0011] (2) Select a suitable number of airbag-type pile connectors according to the depth of the pile hole, then connect the airbag-type pile connectors to form a precast pile connector and put it into the pile hole. Then, strike the upper end of the precast pile connector to fix the plug in the bottom surface of the pile hole.

[0012] (3) The precast solid waste piles conveyed by the conveying mechanism are sent into the cylindrical airbag of the airbag tube, and then the cylindrical airbag is inflated to fix the precast solid waste piles. Then the rotating mechanism is driven to rotate the precast solid waste piles to a vertical position and put the precast solid waste piles onto the airbag-type pile connector.

[0013] (4) The airbag-type pile connector is intermittently deflated and inflated so that the precast solid waste pile gradually descends to the bottom surface of the pile hole under its own weight.

[0014] Furthermore, after step (4) is completed, repeat steps (3) and (4) above to send the remaining piles into the pile hole and stack them in sequence, thus completing the installation of all precast solid waste piles.

[0015] Furthermore, after all the precast solid waste piles are installed, the airbag-type pile connector is deflated, and then the airbag-type pile connector is removed from the pile hole.

[0016] Furthermore, in step (1), a steel casing is also provided in the pile hole. The steel casing helps to avoid pile placement deviation and misalignment, improves the connection and fixing effect between precast solid waste piles, and enhances overall stability.

[0017] Furthermore, after the airbag-type pile connector is removed from the pile hole, the steel casing is then pulled out.

[0018] Furthermore, after removing the steel casing, grout is injected into the pile hole to complete the reinforcement of the soft soil foundation.

[0019] Compared with the prior art, the present invention has at least the following beneficial technical effects: (1) The solid waste precast pile reinforcement soft soil foundation construction equipment of the present invention can effectively prevent the problem of easy detachment and pile fracture during the lifting and moving of precast piles through the cooperation between the various mechanisms. This is because the construction equipment of the present invention uses an airbag-type pile connector for transporting precast piles. By controlling the intermittent deflation and inflation of the airbag-type pile connector, and then controlling the expansion and contraction of the airbag-type pile connector, the solid waste precast pile and the airbag-type pile connector can achieve intermittent fixing and detachment. Under the action of its own weight, the solid waste precast pile gradually descends to the bottom surface of the pile hole, and is not easy to detach, thus effectively preventing the pile fracture caused by this.

[0020] (2) The solid waste precast pile reinforcement soft soil foundation construction equipment of the present invention can effectively improve the low efficiency and long time consumption of manual operation of precast piles through the cooperation between various mechanisms, and can also make each pile accurately positioned, reduce the misalignment deviation, and improve the overall stability of the pile body formed by the overlap of multiple precast piles. This is because during the installation of precast piles, the positioning and restriction of the precast pile connector composed of the airbag type connector allows each precast pile to achieve coaxial overlap more accurately and avoid misalignment. At the same time, since the connector can be deflated and contracted to be extracted from the pile body, the pile body is kept in a coaxial overlap state. In addition, the further standardization of the steel casing during the installation process can significantly improve the overall stability of the pile body. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0022] Figure 1 The following is a schematic diagram of the construction equipment and method for reinforcing soft soil foundations with precast piles made of solid waste.

[0023] Figure 2 The following is a schematic diagram of the conveying mechanism in the embodiments below.

[0024] Figure 3 The following is a schematic diagram of the structure of a single airbag-type pile connector in the embodiments below.

[0025] Figure 4 The following is a schematic diagram of the structure of the airbag-type pile connector after assembly and connection in the embodiments below.

[0026] Figure 5 The following is a schematic diagram of the rotating mechanism and the airbag tube in the embodiments below.

[0027] Figure 6 The following is a schematic diagram of the operation of the construction equipment for reinforcing soft soil foundations with precast piles made of solid waste, as described in the embodiments below.

[0028] The markings in the above diagram represent: 1-platform, 2-conveying mechanism, 3-airbag-type pile connector, 4-plug, 5-rotating mechanism, 6-airbag tube, 7-precast solid waste pile, 8-pile hole, 9-steel casing, 201-first conveyor belt, 202-second conveyor belt, 203-third conveyor belt, 204-lifter, 301-threaded column, 302-threaded hole, 303-air pipe, 501-support rod, and 601-cylindrical airbag. Detailed Implementation

[0029] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] For ease of description, the terms "up," "down," "left," and "right" appearing in this invention only indicate that they correspond to the up, down, left, and right directions in the accompanying drawings. They do not limit the structure and are merely for the purpose of describing the invention and simplifying the description. They do not indicate or imply that the equipment or components referred to need to have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The construction equipment and method for reinforcing soft soil foundations with precast piles made from solid waste according to the present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to Figures 1 to 6 An example of a construction device for reinforcing soft soil foundations with precast piles made from solid waste includes: a platform 1, a conveying mechanism 2, an airbag-type pile connector 3, a plug 4, a rotating mechanism 5, and an airbag tube 6. Specifically, the conveying mechanism 2 includes a first conveyor belt 201, a second conveyor belt 202, a third conveyor belt 203, and a lifter 204. The first conveyor belt 201 is horizontally positioned on the upper surface of the platform 1 and located behind the rotating mechanism 5. The rotating mechanism 5 is fixed to the platform 1, and its support rod 501 is angled upwards and to the left. The second conveyor belt 202 is horizontally positioned behind the platform 1 and is fixed to the lifter 204. The lifter 204 is fixed to a base integrally connected to the platform 1, and its main function is to lift the second conveyor belt 202 to engage with the first conveyor belt 201. The third conveyor belt 203 is horizontally positioned at the rear end of the second conveyor belt 202 and on a horizontal plane to transfer the precast solid waste piles 7 to be installed onto the third conveyor belt 203, and then transfer them to the first conveyor belt 201 via the second conveyor belt 202, thereby preparing for further installation of the precast solid waste piles 7. In a preferred embodiment, baffles are also fixed to both sides of the conveyor belt to help prevent the precast solid waste piles 7 from rolling off during transport.

[0033] refer toFigure 3 and Figure 4 The airbag-type pile connector 3 has a threaded post 301 at its upper end and a threaded hole 302 on its lower end face. Several sections of the airbag-type pile connector 3 are sequentially connected to the threaded holes 302 of another section of the airbag-type pile connector 3 through their threaded posts 301 to form a precast pile connector, and adjacent airbag-type pile connectors 3 are connected by air pipes 303. The uppermost airbag-type pile connector 3 is connected to an external air compressor to supply compressed air or exhaust air into the airbag-type pile connector 3, thereby achieving the expansion and deformation of the airbag-type pile connector 3. It should be understood that the length of the precast pile connector can be determined according to the depth of the pile hole 8 used to install the solid waste precast pile 7. Since the precast pile connector is a detachable structure composed of airbag-type pile connectors 3, the length of the precast pile connector can be flexibly adjusted. The lower end of one section of the airbag-type connector 3 at the tail end of the precast pile connector is fixedly connected to the conical plug 4 so as to anchor the tail end of the precast pile connector into the bottom surface of the pile hole 8, so as to accurately align and stack the various sections of solid waste precast piles 7 in the pile hole 8. It should be understood that the diameter of the plug 4 should be smaller than the diameter of the airbag-type connector 3 so that the plug 4 can be pulled out from the central through hole of the airbag-type connector 3 after installation. The structure of a single airbag-type connector 3 can be referred to in patent document publication number CN214328858U.

[0034] refer to Figure 1 and Figure 5 The airbag tube 6 is horizontally fixed to the top of the support rod 501 of the rotating mechanism 5. A cylindrical airbag 601 is disposed in the inner cavity of the airbag tube 6 and is fixed to the inner wall of the airbag tube 6. The cylindrical airbag 601 is connected to an external air compressor to deliver compressed air or exhaust air into the cylindrical airbag 601 to deform and expand it. When the cylindrical airbag 601 is not filled with gas and is not inflated, its diameter is larger than the diameter of the precast solid waste pile 7 so that the precast solid waste pile 7 can be inserted. After the cylindrical airbag 601 is inflated, it fixes the precast solid waste pile 7 inside.

[0035] In a preferred embodiment, the inner wall of the cylindrical airbag 601 is roughened, thereby increasing the friction between the cylindrical airbag 601 and the precast solid waste pile 7, increasing the gripping force on the precast solid waste pile 7, and helping to prevent the precast solid waste pile 7 from slipping off.

[0036] The method for using precast solid waste piles to reinforce soft soil foundations according to the above embodiments includes the following steps (see reference). Figure 1 and Figure 6 ): (1) Determine the drilling location and depth on the soft soil foundation that needs to be reinforced, and then use a long spiral drilling rig to drill to the designed hole depth to form the precast pile hole 8. Set the parts of the above construction equipment except for the airbag-type pile connector 3 and plug 4 on the ground on one side of the pile hole 8, and set the platform 1 adjacent to the pile hole 8.

[0037] (2) Select a suitable number of airbag-type pile connectors 3 according to the depth of the pile hole 8, then connect the airbag-type pile connectors 3 to form a precast pile connector and put it into the pile hole 8. Then hit the upper end of the precast pile connector to fix the plug 4 in the bottom surface of the pile hole 8.

[0038] (3) The precast solid waste pile 7 delivered by the conveying mechanism 2 is fed into the cylindrical airbag 601 of the airbag tube 6, and then the cylindrical airbag 601 is inflated to fix the precast solid waste pile 7. Then the rotating mechanism 5 is driven to rotate the precast solid waste pile 7 to a vertical position and put the precast solid waste pile 7 onto the airbag type pile connector 3.

[0039] (4) The airbag-type pile connector 3 is intermittently deflated and inflated so that the precast solid waste pile 7 gradually descends to the bottom surface of the pile hole 8 under its own weight.

[0040] Repeat steps (3) and (4) above to insert the remaining piles into the pile hole 8 and stack them in sequence, thus completing the installation of all the precast solid waste piles 7. Finally, deflate the airbag-type pile connector 3 to make it shrink, and then pull the airbag-type pile connector 3 out of the pile hole.

[0041] In a preferred embodiment, in step (1), a steel casing 9 is further provided in the pile hole 8 (see reference). Figure 1 The diameter of the steel casing 9 is slightly larger than the diameter of the precast solid waste pile 7 (e.g., a difference of 1-3 mm) and slightly smaller than the diameter of the pile hole 9 (e.g., a difference of 1-2 mm). The steel casing 9 helps to avoid pile placement deviations and misalignments, improves the connection and fixation effect between the precast solid waste piles, and enhances overall stability. After the airbag-type pile connector 3 is removed from the pile hole 8, the steel casing 9 is then pulled out. After the steel casing 9 is pulled out, concrete grout is poured into the pile hole 8. After it solidifies and hardens, it can connect the individual precast solid waste piles 7 into a single concrete pile to reinforce the soft soil foundation.

[0042] Because the construction equipment uses an airbag-type pile connector 3 for transporting precast piles, the intermittent deflation and inflation of the airbag-type pile connector 3, and consequently its expansion and contraction, allows for intermittent fixing and detachment between the solid waste precast pile 7 and the airbag-type pile connector 3. This allows the solid waste precast pile 7 to gradually descend to the bottom surface of the pile hole 8 under its own weight, reducing the risk of detachment and effectively preventing pile breakage. Simultaneously, the coordination between the various mechanisms of the construction equipment effectively improves upon the low efficiency and time-consuming nature of manual operation of precast piles. Furthermore, during the installation of precast piles, the positioning and constraint provided by the airbag-type pile connector 3 ensures more precise coaxial overlap of each precast pile, avoiding misalignment. Moreover, the ability of the pile connector to deflate and contract, withdrawing from the pile body, maintains the coaxial overlap of the precast piles, significantly reducing misalignment during stacking and improving the overall stability of the resulting pile body.

[0043] Finally, it should be noted that any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention. Although specific embodiments of this invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this invention are still within the scope of protection of this invention.

Claims

1. A construction device for reinforcing soft soil foundations with precast piles made of solid waste, characterized in that, include: The system comprises a platform, a conveying mechanism, an airbag-type pile connector, a plug, a rotating mechanism, and an airbag tube; wherein: one end of the conveying mechanism is connected to the platform; one end of the airbag-type pile connector has a threaded post, and the other end has a threaded hole; several sections of the airbag-type pile connector are sequentially connected through the threaded post and the threaded hole to form a precast pile connector; the tail end of the airbag-type pile connector is fixedly connected to the plug; adjacent airbag-type pile connectors are connected through air tubes; at least one airbag-type pile connector is connected to an external air compressor; the rotating mechanism is fixed on the platform, and the rotating... The support rod of the rotating mechanism is obliquely positioned to the upper left; the airbag tube is horizontally fixed to the top of the support rod of the rotating mechanism, and a cylindrical airbag is provided in the inner cavity of the airbag tube, and the cylindrical airbag is fixed to the inner wall of the airbag tube. The cylindrical airbag is connected to an external air compressor to deliver compressed air into the cylindrical airbag or exhaust air to deform and expand it; when the cylindrical airbag is not filled with gas and is not expanded, its diameter is larger than the diameter of the precast solid waste pile, so that the precast solid waste pile can be inserted. After the cylindrical airbag is inflated, it fixes the precast solid waste pile inside. The conveying mechanism includes a first conveyor belt, a second conveyor belt, a third conveyor belt, and a lifter; wherein: the first conveyor belt is horizontally disposed on the upper surface of the platform and located at the rear of the rotating mechanism; the second conveyor belt is horizontally disposed behind the platform and is fixed to the lifter, which is fixed to a base integrally connected to the platform, and the lifter is used to lift the second conveyor belt to dock with the first conveyor belt; the third conveyor belt is horizontally disposed at the rear end of the second conveyor belt and located on a horizontal plane.

2. The construction equipment for reinforcing soft soil foundations with precast solid waste piles according to claim 1, characterized in that, The conveyor belt has baffles on both sides.

3. The construction equipment for reinforcing soft soil foundations with precast solid waste piles according to claim 1, characterized in that, The inner wall of the cylindrical airbag is rough.

4. A construction method for reinforcing soft soil foundations with precast solid waste piles, characterized in that, This method is implemented using the construction equipment described in any one of claims 1-3, and includes the following steps: (1) Drill precast pile holes on the soft soil foundation that needs to be reinforced, and set the parts of the above construction equipment except for the airbag-type pile connector and plug on the ground on one side of the pile hole. (2) Select a suitable number of airbag-type pile connectors according to the depth of the pile hole, then connect the airbag-type pile connectors to form a precast pile connector and put it into the pile hole. Then hit the upper end of the precast pile connector to make the plug stick into the bottom surface of the pile hole and keep it fixed. (3) The solid waste precast piles conveyed by the conveying mechanism are sent into the cylindrical airbag of the airbag tube, and then the cylindrical airbag is inflated to fix the solid waste precast piles; then the rotating mechanism is driven to rotate the solid waste precast piles to a vertical state and put the solid waste precast piles onto the airbag type pile connector. (4) The airbag-type pile connector is intermittently deflated and inflated so that the precast solid waste pile gradually descends to the bottom surface of the pile hole under its own weight.

5. The construction method for reinforcing soft soil foundations with precast solid waste piles according to claim 4, characterized in that, After step (4) is completed, repeat steps (3) and (4) above to send the remaining piles into the pile hole and stack them in sequence, thus completing the installation of all precast solid waste piles.

6. The construction method for reinforcing soft soil foundations with precast solid waste piles according to claim 4, characterized in that, After all the precast solid waste piles have been installed, the airbag-type pile connector is deflated, and then the airbag-type pile connector is removed from the pile hole.

7. The construction method for reinforcing soft soil foundations with precast solid waste piles according to claim 4, characterized in that, In step (1), a steel casing is also installed in the pile hole.

8. The construction method for reinforcing soft soil foundations with precast solid waste piles according to claim 7, characterized in that, After the airbag-type pile connector is removed from the pile hole, the steel casing is then pulled out.

9. The construction method for reinforcing soft soil foundations with precast solid waste piles according to claim 8, characterized in that, After the steel casing is pulled out, grout is injected into the pile hole to complete the reinforcement of the soft soil foundation.

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