Equipment and construction method for making reinforced composite drainage piles using construction waste

Abstract

This invention discloses an equipment and construction method for fabricating reinforced core composite drainage piles using construction debris. The equipment includes: a permeable outer shell construction device and a reinforced core inner layer construction device coaxially mounted on a connecting frame, wherein the permeable outer shell construction device is located outside the reinforced core inner layer construction device; the permeable outer shell construction device includes: a cylindrical protective shell, a first high-pressure water supply pipe, a first mud discharge pipe, and a material discharge pipe; the reinforced core inner layer construction device includes: a rotating telescopic hanging pipe and a nozzle receiving plate; the equipment simultaneously performs cast-in-place construction of the permeable outer shell and the reinforced core to form a reinforced core composite drainage pile, which accelerates construction efficiency, greatly reduces the use of precast pile stacking space, and increases site space utilization; and the use of a bored method instead of precast static pressure piles eliminates the soil squeezing effect, which is beneficial to construction.

Description

Technical Field

[0001] This invention belongs to the field of geotechnical engineering technology, specifically relating to a core-reinforced composite drainage pile, its pile-forming equipment, and construction method. Background Technology

[0002] The recycling and reuse of construction debris is one of the effective methods to solve the pollution problem caused by construction debris, but its application in actual engineering projects is extremely limited. This is mainly because construction debris is inconvenient to handle on construction sites, and the construction is quite difficult. Currently, there is a lack of equipment on the market that can utilize construction debris for actual construction.

[0003] Soft soil mainly refers to soil composed of silt deposits and a small amount of humus. It is characterized by high natural water content, high compressibility, low bearing capacity, and very low shear strength. Therefore, when soft soil is used as the foundation soil for buildings, it needs to be treated. In engineering, drainage consolidation is commonly used. This method typically employs drainage piles with a certain bearing capacity and good permeability as drainage channels, which can accelerate drainage consolidation. However, cast-in-place concrete drainage piles have the disadvantage of irreversible pile formation. When quality defects occur in the pile, repair can only be done by removing and rebuilding the pile. Rebuilding not only significantly increases the construction period and wastes a lot of time on repetitive work, but it can also affect the stability of the surrounding foundation, thus increasing the possibility of accidents. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a device and construction method for constructing reinforced core composite drainage piles using precast piles. The device uses the same method to simultaneously cast the permeable outer shell and the core to form a reinforced core composite drainage pile, which speeds up the construction efficiency, greatly reduces the use of precast pile stacking space, and increases the utilization rate of site space.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this invention is: a device for manufacturing reinforced composite drainage piles using construction debris, characterized in that it comprises:

[0006] Connector;

[0007] A permeable outer shell construction device and a core inner layer construction device are installed on the connecting frame and arranged coaxially. The permeable outer shell construction device is located outside the core inner layer construction device.

[0008] The permeable shell construction device includes:

[0009] Cylindrical protective shell;

[0010] The first high-pressure water pipe is located on the outside of the cylindrical protective shell and is symmetrically arranged with respect to the center of the cylindrical protective shell. It is used to launch high-pressure water jets into the soil around the cylindrical protective shell for soil excavation.

[0011] The first mud discharge pipe is located on one side of the cylindrical protective shell. Its upper end is connected to the temporary mud storage chamber, and its lower end is provided with a first mud extraction port. A mud pump is installed inside the pipe of the first mud discharge pipe. The first mud discharge pipe is used to extract mud from the excavated soil.

[0012] A discharge pipe is located on the other side of the cylindrical protective shell and is symmetrically arranged with the first mud discharge pipe. The upper end of the discharge pipe is connected to the building aggregate mixing bin. The discharge pipe is used to transport the mixed slurry after mixing in the building aggregate mixing bin downward to form a pile.

[0013] A transverse linear telescopic unit is symmetrically arranged around the center of the cylindrical protective shell. One end of the unit is fixedly connected to the upper part of the inner wall of the cylindrical protective shell, and the other end is fixedly connected to the inner shell fixed to the connecting frame. The transverse linear telescopic unit can adjust the inner diameter of the protective shell by telescopic adjustment.

[0014] An adsorption unit is fixedly installed at the bottom of the transverse linear telescopic unit. The adsorption unit is used to adsorb the steel pipe and lower the steel pipe when it is installed.

[0015] The core inner layer construction device includes:

[0016] The rotating telescopic pipe is fixedly connected to the connecting frame at the top. A telescopic rod is provided at the center of the pipe body. A second high-pressure water supply pipe, a second mud discharge pipe, and a concrete conveying pipe are coaxially arranged around the telescopic rod on the outer layer of the pipe body.

[0017] The nozzle receiving plate is connected to the bottom of the rotating telescopic pipe. The nozzle receiving plate is provided with several pipes, which connect the second high-pressure water rotating nozzle to the second high-pressure water supply pipe, the second mud extraction port to the second mud discharge pipe, and the concrete discharge port to the concrete conveying pipe.

[0018] An ultrasonic sensor and a signal processing device are installed on the outside of the permeable shell construction device. The input end of the signal processing device is connected to the ultrasonic sensor, and the output end of the signal processing device is connected to the mud pump, water pressure regulator and high-pressure slurry pump.

[0019] As a preferred embodiment of the present invention: the upper end of the high-pressure water pipe is connected to an external clear water tank, the lower end is provided with a first high-pressure nozzle assembly, and a water pressure regulator is provided inside the pipe. The first high-pressure water pipe is used to deliver water downwards.

[0020] The first high-pressure nozzle assembly includes:

[0021] Multiple high-pressure water nozzles are equidistantly arranged on the lower side of the feed pipe;

[0022] A high-pressure water rotary nozzle is located at the bottom end of the feed pipe;

[0023] A second high-pressure nozzle assembly is provided at the lower end of the feed pipe, and a high-pressure slurry pump is installed in the feed pipe.

[0024] As a preferred embodiment of the present invention: two second high-pressure water delivery pipes are symmetrically arranged around the telescopic rod, and the second mud discharge pipe and the second concrete delivery pipe are symmetrically arranged around the telescopic rod;

[0025] The transverse linear telescopic unit is a hydraulic buffer rod, and multiple hydraulic buffer rods are evenly and symmetrically distributed around the center of the connecting frame;

[0026] The adsorption unit is an electromagnet, and the electromagnets are evenly distributed in a circular shape around the core inner layer construction device.

[0027] As a preferred embodiment of the present invention: a space for a steel pipe is provided below the electromagnet for adapting steel pipes of different sizes to the electromagnet.

[0028] On the other hand, a construction method based on the aforementioned equipment for fabricating reinforced composite drainage piles using building debris includes the following steps:

[0029] a) Pre-drilling positioning holes: Locate the location of the drainage piles and excavate positioning holes the size of the pile location;

[0030] b) Steel pipe adsorption: The equipment is hoisted onto a prefabricated steel pipe using a hoisting device, so that it is attracted by an electromagnet.

[0031] c) Fixing the pile-forming equipment: Place the pile-forming equipment along with the precast steel pipe into the positioning hole and adjust the excavation angle;

[0032] d) Excavation: High-pressure water jets are sprayed from the high-pressure water nozzles on the permeable shell, the first high-pressure water rotary nozzle, and the second high-pressure water rotary nozzle in the inner layer of the core to rotate and excavate the soil. The excavated soil is mixed with water to form mud. The mud is discharged to the temporary mud storage bin through the first mud outlet and the second mud outlet, respectively.

[0033] e) Steel pipe separation: After the soil excavation is completed, the power supply to the electromagnet is cut off, and the equipment is slowly lifted to separate the precast steel pipe from the equipment.

[0034] f) Pile casting: High-pressure grout nozzles and high-pressure grout rotary nozzles are used to spray a mixture of building materials and sand to cast the permeable shell in a rotary manner. The drainage channels on the permeable shell are controlled by adjusting the grouting pump. At the same time, concrete is poured into the steel pipe through the concrete discharge port until the grouting requirements of the project are met and a core is formed.

[0035] g) Pile inspection: During the pouring process, ultrasonic sensors are used to detect the integrity of the permeable shell and the signal is transmitted back to the signal processing device. If there are defects in the permeable shell, the output pressure of the grouting pump is adjusted by the signal processing device to repair and pour the permeable shell.

[0036] h) Repeat step ag to complete the construction of the core composite drainage piles in the site, and lay a sand cushion layer in the construction site;

[0037] i) Recycling unit: Recycles equipment and cleans and maintains it.

[0038] As a preferred embodiment of the present invention, the excavation angle is adjusted by controlling the transverse linear telescopic unit in step c.

[0039] As a preferred embodiment of the present invention, the soil excavation method in step d is to use a high-pressure water nozzle, a first high-pressure water rotary nozzle and a second high-pressure water rotary nozzle to spray high-pressure water jets to rotate and excavate the soil.

[0040] The mud discharge method involves using external and internal mud extraction ports to discharge the mud into a temporary mud storage bin via mud discharge pipes.

[0041] As a preferred embodiment of the present invention, the precast steel pipe is separated from the equipment by de-energizing the electromagnet and slowly lifting the equipment, while leaving the steel pipe inside the pile.

[0042] In a preferred embodiment of the present invention: in step f, a mixture of building debris and sand is sprayed using a high-pressure grout nozzle and a high-pressure grout rotary nozzle to cast a permeable outer shell in a rotating manner. The drainage channel on the permeable outer shell is controlled by adjusting the high-pressure grout pump. At the same time, concrete is poured into the core using the concrete discharge port until the grouting is completed and the requirements are met.

[0043] In a preferred embodiment of the present invention: in step g, an ultrasonic sensor is used to detect the integrity of the permeable shell and the signal is transmitted back to the signal processing device. If there is a defect in the permeable shell, the output pressure of the high-pressure slurry pump is adjusted by the signal processing device to repair and pour the permeable shell.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] (1) The present invention uses high-pressure water jet for soil excavation. At the same time, the excavation device is equipped with a mud discharge pipe to discharge the mud. Compared with the traditional excavation mode, it has the advantages of being green and efficient.

[0046] (2) The material used to make the permeable shell of the present invention is building debris, which realizes the engineering reuse of building debris. At the same time, the gaps between the building debris are used as drainage channels on the permeable shell, which improves the utilization rate of resources and saves labor and construction costs.

[0047] (3) This invention changes the traditional method of using precast piles to construct reinforced core composite drainage piles. It uses equipment to simultaneously cast the permeable shell and the core to form a reinforced core composite drainage pile, which speeds up the construction efficiency, greatly reduces the use of precast pile stacking sites, and increases the site space utilization rate. Moreover, it uses the excavation method instead of precast static pressure piles, which does not have the soil squeezing effect, which is conducive to the construction process.

[0048] (4) The precast steel pipe used in this invention can be used as a support structure in the construction process of the core, which can effectively prevent the collapse of the water-permeable shell and core, and avoid pile quality problems, thus effectively improving the pile quality.

[0049] By utilizing ultrasonic sensors, the internal quality of the pile can be checked in real time, enabling pile maintenance.

[0050] (5) The present invention has a permeable outer shell construction device and a core inner layer construction device to form a core composite drainage pile, which has good bearing capacity and can greatly improve the uniformity and overall strength of the foundation.

[0051] (6) The present invention can detect and repair the formed permeable shell to ensure the quality of the pile. Attached Figure Description

[0052] Figure 1 This is a front view of the pile-forming equipment of the present invention;

[0053] Figure 2 This is a side view of the pile-forming equipment of the present invention;

[0054] Figure 3 This is a diagram showing the distribution of nozzles in the permeable outer shell construction device of the pile-forming equipment of the present invention;

[0055] Figure 4 This is a diagram showing the distribution of pipelines at the bottom of the nozzle receiving plate in the pile-forming equipment of this invention;

[0056] Figure 5 This is a diagram showing the internal pipeline distribution of the rotating telescopic pipe in the pile-forming equipment of this invention;

[0057] Figure 6 This is a schematic diagram of the construction method of the present invention;

[0058] Figure 7 This is a flowchart of the construction steps of the present invention;

[0059] The attached figures are labeled as follows: 1-1, signal processing device; 1-2, support rod; 1-3, water pressure regulator; 1-4, ultrasonic sensor; 1-5, external high-pressure water rotary nozzle; 1-6, hydraulic buffer rod; 1-7, electromagnet; 1-8, thin-walled cylindrical protective shell; 1-9, high-pressure water nozzle; 1-10, grouting pump; 1-11, high-pressure slurry nozzle; 1-12, high-pressure slurry rotary nozzle; 1-13, high-pressure water supply pipe; 1-14, feed pipe; 1-15, mud. Piping; 1-16, Slurry Pump; 1-17, External Slurry Extraction Port; 2-1, Steel Pipe Reserved Space; 2-2, High-Pressure Water Supply Pipe; 2-3, Slurry Discharge Pipe; 2-4, Concrete Delivery Pipe; 2-5, Telescopic Hanger; 2-6, Internal High-Pressure Water Rotary Nozzle; 2-7, Rotary Telescopic Hanger; 2-8, Nozzle Receiving Plate; 2-9, Internal Slurry Extraction Port; 2-10, Concrete Discharge Port; 3-1, Clear Water Tank; 3-2, Building Waste Mixing Bin; 3-3, Temporary Slurry Storage Bin; 4. Figure 4 The selected plane; 5. Figure 5 The selected plane. Implementation

[0060] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0061] like Figures 1-5 The image shows a device for fabricating reinforced composite drainage piles using construction debris, comprising:

[0062] Connector;

[0063] A permeable outer shell construction device and a core inner layer construction device are installed on the connecting frame and arranged coaxially. The permeable outer shell construction device is located outside the core inner layer construction device.

[0064] The permeable shell construction device includes:

[0065] Cylindrical protective shell;

[0066] The first high-pressure water pipe is located on the outside of the cylindrical protective shell and is symmetrically arranged with respect to the center of the cylindrical protective shell. It is used to launch high-pressure water jets into the soil around the cylindrical protective shell for soil excavation.

[0067] The first mud discharge pipe is located on one side of the cylindrical protective shell. Its upper end is connected to the temporary mud storage chamber, and its lower end is provided with a first mud extraction port. A mud pump is installed inside the pipe of the first mud discharge pipe. The first mud discharge pipe is used to extract mud from the excavated soil.

[0068] A discharge pipe is located on the other side of the cylindrical protective shell and is symmetrically arranged with the first mud discharge pipe. The upper end of the discharge pipe is connected to the building aggregate mixing bin. The discharge pipe is used to transport the mixed slurry after mixing in the building aggregate mixing bin downward to form a pile.

[0069] A lateral linear telescopic unit is symmetrically arranged around the center of the cylindrical protective shell. One end of the unit is fixedly connected to the upper part of the inner wall of the cylindrical protective shell, and the other end is fixedly connected to the inner shell fixed to the connecting frame. The lateral linear telescopic unit can adjust the inner diameter of the protective shell by telescopic adjustment. The lateral linear telescopic unit is a hydraulic buffer rod.

[0070] An adsorption unit is fixedly installed at the bottom of the transverse linear telescopic unit. The adsorption unit is used to adsorb the steel pipe and lower the steel pipe when it is installed.

[0071] The core inner layer construction device includes:

[0072] The rotating telescopic pipe is fixedly connected to the connecting frame at the top. A telescopic rod is provided at the center of the pipe body. A second high-pressure water supply pipe, a second mud discharge pipe, and a concrete conveying pipe are coaxially arranged around the telescopic rod on the outer layer of the pipe body.

[0073] The nozzle receiving plate is connected to the bottom of the rotating telescopic pipe. The nozzle receiving plate is provided with several pipes, which connect the second high-pressure water rotating nozzle to the second high-pressure water supply pipe, the second mud extraction port to the second mud discharge pipe, and the concrete discharge port to the concrete conveying pipe.

[0074] An ultrasonic sensor and a signal processing device are installed on the outside of the permeable shell construction device. The input end of the signal processing device is connected to the ultrasonic sensor, and the output end of the signal processing device is connected to the mud pump, water pressure regulator and high-pressure slurry pump.

[0075] like Figure 1As shown, the permeable shell construction device 1 is cylindrical in shape. A signal processing device 1-1 is installed on the outside. The signal processing device 1-1 is connected to the water pressure regulator 1-3 on the high-pressure water supply pipe 1-13, the slurry suction pump 1-16 on the mud discharge pipe 1-15, the grouting pump 1-10 on the discharge pipe 1-14, the water pressure regulator 1-3 on the high-pressure water supply pipe 2-2, the slurry suction pump 1-16 on the mud discharge pipe 2-3, and the ultrasonic sensor 1-4 via wires. A thin-walled cylindrical protective shell 1-8 is provided on the inside. The lower end of the thin-walled cylindrical protective shell 1-8 is connected to the support rod 1-2, and the top is connected to the hydraulic buffer rod 1-6, the electromagnet 1-7, and the reserved space 2-1 for the steel pipe.

[0076] Two high-pressure water supply pipes 1-13 are symmetrically arranged, and the mud discharge pipe 1-15 and the feed pipe 1-14 are respectively arranged on both sides of the high-pressure water supply pipe 1-13. The upper ends of the two high-pressure water supply pipes 1-13 are connected to the clear water tank 3-1. Several high-pressure water nozzles 1-9 and external high-pressure water rotating nozzles 1-5 are respectively arranged on the lower side and bottom of the high-pressure water supply pipe 1-13.

[0077] like Figure 2 As shown, a slurry pump 1-16 is installed at the upper part of the slurry discharge pipe 1-15, the lower end is connected to an external slurry extraction port 1-17, and the top is connected to a temporary slurry storage chamber 3-3.

[0078] The upper part of the feed pipe 1-14 is equipped with a grouting pump 1-10, and the lower side and the bottom are respectively provided with a number of high-pressure grout nozzles 1-11 and high-pressure grout rotary nozzles 1-12. The top is connected to the building material mixing chamber 3-2.

[0079] The core inner layer construction device is cylindrical in shape and is equipped with a rotating telescopic pipe 2-7. The rotating telescopic pipe 2-7 is equipped with a high-pressure water supply pipe 2-2, a mud discharge pipe 2-3, a concrete conveying pipe 2-4, and a telescopic rod 2-5.

[0080] The bottom end of the rotating telescopic pipe 2-7 is connected to a nozzle receiving plate 2-8, and the nozzle receiving plate 2-8 is equipped with a high-pressure water rotating nozzle 2-6, an internal mud extraction port 2-9, and a concrete discharge port 2-10.

[0081] Two high-pressure water pipes 2-2 are symmetrically arranged, with a water pressure regulator 1-3 installed on the upper part and connected to a high-pressure water rotary nozzle 2-6 at the lower part.

[0082] The upper part of the mud discharge pipe 2-3 is equipped with a mud suction pump 1-16, and the lower part is connected to the internal mud extraction port 2-9.

[0083] The lower part of the concrete conveying pipe 2-4 is connected to the concrete discharge port 2-10.

[0084] Furthermore, the equipment includes a permeable outer shell construction device 1 and a core inner layer construction device 2.

[0085] like Figure 3 As shown, the permeable shell construction device 1 is further equipped with a signal processing device 1-1, an ultrasonic sensor 1-4, two high-pressure water supply pipes 1-13, a mud discharge pipe 1-15, a material discharge pipe 1-14, a hydraulic buffer rod 1-6, and an electromagnet 1-7.

[0086] Furthermore, the lower side and bottom of the high-pressure water supply pipe 1-13 are respectively connected to several high-pressure water nozzles 1-9 and external high-pressure water rotary nozzles 1-5. The lower end of the mud discharge pipe 1-15 is provided with an external mud extraction port 1-17. The lower side and bottom of the discharge pipe 1-14 are respectively provided with several high-pressure slurry nozzles 1-11 and high-pressure slurry rotary nozzles 1-12.

[0087] Furthermore, four hydraulic buffer rods 1-6 are symmetrically distributed, and the electromagnets 1-7 are evenly distributed in a circular shape.

[0088] Furthermore, the inner construction device 2 of the core is equipped with a rotating telescopic pipe 2-7.

[0089] Furthermore, the equipment is equipped with a reserved space 2-1 for steel pipes.

[0090] To better achieve the aforementioned objectives, this invention also provides a method for constructing cast-in-place drainage piles using waste plastics, including pile-forming equipment and construction techniques. Figure 6 , Figure 7 As shown, it includes the following steps:

[0091] a) Pre-drilling positioning holes: Locate the location of the drainage piles and excavate positioning holes the size of the pile location;

[0092] b) Steel pipe adsorption: Use a hoisting device to hoist the equipment onto a prefabricated steel pipe so that it is adsorbed by electromagnets 1-7;

[0093] c) Fixing the pile-forming equipment: Place the pile-forming equipment along with the precast steel pipe into the positioning hole and adjust the excavation angle;

[0094] d) Excavation of soil space: High-pressure water jets are sprayed from high-pressure water nozzles 1-9, external high-pressure water rotary nozzles 1-5 and internal high-pressure water rotary nozzles 2-6 to rotate and excavate the soil. The cut soil is mixed with water. At the same time, mud is discharged from external mud outlet 1-17 and internal mud outlet 2-9 to mud temporary storage bin 3-3 through mud discharge pipes 1-16 and 2-3 respectively.

[0095] e) Steel pipe separation: After the soil excavation is completed, the power supply to electromagnets 1-7 is cut off, and the equipment is slowly lifted to separate the precast steel pipe from the equipment.

[0096] f) Pile casting: High-pressure grout nozzles 1-11 and high-pressure grout rotary nozzles 1-12 are used to spray a mixture of building debris and sand to cast the permeable outer shell. The drainage channel on the permeable outer shell is controlled by adjusting the grouting pump 1-10. At the same time, concrete is poured into the core using the concrete discharge port 2-10 until the grouting requirements of the project are met.

[0097] g) Pile body inspection: During the pouring process, the integrity of the permeable shell is detected by ultrasonic sensor 1-4 and the signal is transmitted back to signal processing device 1-1. If there are defects in the permeable shell, the output pressure of grouting pump 1-10 is adjusted by signal processing device 1-1 to repair and pour the permeable shell.

[0098] h) Repeat ag to complete the construction of the core composite drainage piles in the site, and lay a sand cushion layer in the construction site;

[0099] i) Recycling unit: Recycles equipment and cleans and maintains it.

[0100] In step b, the electromagnets 1-7 are energized to attract the precast steel pipe.

[0101] The precast steel pipes used in step b can be of various specifications to meet the requirements of different sites for foundation bearing capacity.

[0102] In step c, the excavation angle is adjusted by controlling the hydraulic buffer rods 1-6.

[0103] In step d, the soil excavation method is to use high-pressure water nozzles 1-9, external high-pressure rotary nozzles 1-5 and internal high-pressure rotary nozzles 2-6 to spray high-pressure water jets to rotate and excavate the soil. The mud discharge method is to use external mud extraction port 1-17 and internal mud extraction port 2-9 to discharge the mud to the temporary mud storage chamber 3-3 through mud discharge pipes 1-16 and 2-3 respectively.

[0104] In step e, the precast steel pipe is separated from the equipment by de-energizing electromagnets 1-7 and slowly lifting the equipment.

[0105] In step f, high-pressure grout nozzles 1-11 and 1-12 are used to spray a mixture of building debris and sand grout to pour the permeable shell. The drainage channel on the permeable shell is controlled by adjusting the grouting pump 1-10. At the same time, concrete is poured into the core using the concrete discharge port 2-10 until the grouting requirements of the project are met.

[0106] In step g, the integrity of the permeable shell is detected by ultrasonic sensor 1-4 and the signal is transmitted back to signal processing device 1-1. If there is a defect in the permeable shell, the output pressure of grouting pump 1-10 is adjusted by signal processing device 1-1 to repair and pour the permeable shell.

[0107] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for fabricating reinforced composite drainage piles using construction debris, characterized in that, include: Connector; A permeable outer shell construction device and a core inner layer construction device are installed on the connecting frame and arranged coaxially. The permeable outer shell construction device is located outside the core inner layer construction device. The permeable shell construction device includes: Cylindrical protective shell; The first high-pressure water pipe is located on the outside of the cylindrical protective shell and is symmetrically arranged with respect to the center of the cylindrical protective shell. It is used to launch high-pressure water jets into the soil around the cylindrical protective shell for soil excavation. The upper end of the first high-pressure water pipe is connected to an external clear water tank, and the lower end is equipped with a first high-pressure nozzle assembly. A water pressure regulator is installed inside the pipe. The first high-pressure water pipe is used to deliver water downwards. The first high-pressure nozzle assembly includes: Multiple high-pressure water nozzles are equidistantly arranged on the lower side of the first high-pressure water pipe; The first high-pressure water rotary nozzle is located at the bottom end of the first high-pressure water supply pipe; The first mud discharge pipe is located on one side of the cylindrical protective shell. Its upper end is connected to the temporary mud storage chamber, and its lower end is provided with a first mud extraction port. A mud pump is installed inside the pipe of the first mud discharge pipe. The first mud discharge pipe is used to extract mud from the excavated soil. A discharge pipe is located on the other side of the cylindrical protective shell and is symmetrically arranged with the first mud discharge pipe. The upper end of the discharge pipe is connected to the building aggregate mixing bin. The discharge pipe is used to transport the mixed slurry after mixing in the building aggregate mixing bin downward to form a pile. A second high-pressure nozzle assembly is provided at the lower end of the discharge pipe, and a grouting pump is installed in the pipe. The second high-pressure nozzle assembly includes: Multiple high-pressure slurry nozzles are equidistantly arranged on the lower side of the feed pipe; A high-pressure slurry rotary nozzle is located at the bottom end of the feed pipe; A transverse linear telescopic unit is symmetrically arranged around the center of the cylindrical protective shell. One end of the unit is fixedly connected to the upper part of the inner wall of the cylindrical protective shell, and the other end is fixedly connected to the inner shell fixed to the connecting frame. The transverse linear telescopic unit can adjust the inner diameter of the cylindrical protective shell by telescopic adjustment. An adsorption unit is fixedly installed at the bottom of the transverse linear telescopic unit. The adsorption unit is used to adsorb the steel pipe and lower the steel pipe when it is installed. The adsorption unit is an electromagnet. The core inner layer construction device includes: The rotating telescopic pipe is fixedly connected to the connecting frame at the top. A telescopic rod is provided at the center of the pipe body. A second high-pressure water supply pipe, a second mud discharge pipe, and a concrete conveying pipe are coaxially arranged around the telescopic rod on the outer layer of the pipe body. A second high-pressure water rotary nozzle is provided at the lower end of the second high-pressure water supply pipe. The nozzle receiving plate is connected to the bottom of the rotating telescopic pipe. The nozzle receiving plate is provided with several pipes, so that the second high-pressure water supply pipe is connected to the second high-pressure water rotating nozzle, the second mud discharge pipe is connected to the second mud extraction port, and the concrete conveying pipe is connected to the concrete discharge port. An ultrasonic sensor and a signal processing device are installed on the outside of the permeable shell construction device. The input end of the signal processing device is connected to the ultrasonic sensor, and the output end of the signal processing device is connected to the mud pump, water pressure regulator and grouting pump.

2. The equipment for fabricating reinforced composite drainage piles using construction debris according to claim 1, characterized in that: There are two second high-pressure water delivery pipes symmetrically arranged around the telescopic boom, and the second mud discharge pipe and the second concrete delivery pipe are symmetrically arranged around the telescopic boom; The transverse linear telescopic unit is a hydraulic buffer rod, and multiple hydraulic buffer rods are evenly and symmetrically distributed around the center of the connecting frame; The electromagnets are evenly distributed in a circular shape around the inner layer construction device of the core.

3. The equipment for fabricating reinforced composite drainage piles using construction debris according to claim 1, characterized in that: The electromagnet has a reserved space for a steel pipe underneath, which is used to accommodate steel pipes of different sizes and models.

4. A construction method for a device based on any one of claims 1-3 for fabricating reinforced composite drainage piles using building debris, characterized in that, Includes the following steps: a) Pre-drilling positioning holes: Locate the location of the drainage piles and excavate positioning holes the size of the pile location; b) Steel pipe adsorption: The equipment is hoisted onto a prefabricated steel pipe using a hoisting device, so that it is attracted by an electromagnet. c) Fixing the pile-forming equipment: Place the pile-forming equipment along with the precast steel pipe into the positioning hole and adjust the excavation angle; d) Excavation: High-pressure water jets are sprayed from the high-pressure water nozzles on the permeable shell, the first high-pressure water rotary nozzle, and the second high-pressure water rotary nozzle in the inner layer of the core to rotate and excavate the soil. The excavated soil is mixed with water to form mud. The mud is discharged to the temporary mud storage bin through the first mud outlet and the second mud outlet, respectively. e) Steel pipe separation: After the soil excavation is completed, the power supply to the electromagnet is cut off, and the equipment is slowly lifted to separate the precast steel pipe from the equipment. f) Pile casting: High-pressure grout nozzles and high-pressure grout rotary nozzles are used to spray a mixture of building materials and sand to cast the permeable shell in a rotary manner. The drainage channels on the permeable shell are controlled by adjusting the grouting pump. At the same time, concrete is poured into the steel pipe through the concrete discharge port until the grouting requirements of the project are met and a core is formed. g) Pile inspection: During the pouring process, ultrasonic sensors are used to detect the integrity of the permeable shell and the signal is transmitted back to the signal processing device. If there are defects in the permeable shell, the output pressure of the grouting pump is adjusted by the signal processing device to repair and pour the permeable shell. h) Repeat step ag to complete the construction of the core composite drainage piles in the site, and lay a sand cushion layer in the construction site; i) Recycling unit: Recycles equipment and cleans and maintains it.

5. The construction method of the equipment for making reinforced composite drainage piles using building debris according to claim 4, characterized in that: In step c, the excavation angle is adjusted by controlling the transverse linear telescopic unit.

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