Five-axis agitating pile micro-disturbance construction method in complex environment

Abstract

The application provides a five-axis mixing and beating pile micro-disturbance construction method in a complex environment, and belongs to the technical field of building construction. The five-axis mixing and beating pile micro-disturbance construction method in the complex environment comprises the following steps: construction lofting; excavating a groove and removing ground and underground obstacles; positioning a pile machine, correcting and rechecking the horizontal and vertical degrees of the pile machine; adjusting the alignment position of the pile machine by using an alignment positioning device; mixing cement slurry, starting an air compressor, and sending the slurry to a pile machine drill bit; spraying and cutting the soil by the pile machine drill bit to sink to a designed pile bottom elevation; spraying and lifting the pile machine drill bit to a designed pile top elevation; and cleaning the slurry in the groove. The five-axis mixing and beating pile micro-disturbance construction method in the complex environment can solve the problem that the existing five-axis mixing and beating pile micro-disturbance construction method is difficult to accurately position and is prone to cause inaccurate construction positions.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a method for micro-disturbance construction of five-axis stirring piles in complex environments. Background Technology

[0002] Currently, my country's urbanization has entered a new stage, with the utilization of urban underground space trending towards greater depth, larger scale, and higher safety requirements for foundation pits. With the development and application of related new technologies and processes in foundation pit engineering practice, foundation pit engineering design and construction technologies are becoming increasingly mature and safe. In urban centers and densely built-up areas, the surrounding environment of foundation pits is complex, coupled with poor external traffic conditions, necessitating higher safety requirements. The five-axis stirring and mixing pile micro-disturbance construction method is a method that involves topographic analysis of the construction area, followed by cross-sectional analysis, and then construction based on the cross-sectional analysis results. This method can effectively avoid the influence of underground structures on construction, improving construction efficiency. It can be used in complex geological conditions, improving construction safety and reliability. Furthermore, this method allows for multiple excavation and piling operations, improving excavation efficiency.

[0003] This method allows for adjustments to the tunneling depth and angle based on actual conditions, thereby improving tunneling accuracy.

[0004] However, the existing five-axis stirring pile micro-disturbance construction method is difficult to accurately locate, which easily leads to inaccurate construction position. Summary of the Invention

[0005] In view of this, the present invention provides a method for micro-disturbance construction of five-axis stirring piles in complex environments, which can solve the problem that existing methods for micro-disturbance construction of five-axis stirring piles are difficult to accurately locate and are prone to causing inaccurate construction positions.

[0006] This invention is implemented as follows:

[0007] This invention provides a method for micro-disturbance construction of five-axis stirring piles in complex environments, comprising the following steps:

[0008] S10: Construction layout;

[0009] S20: Excavate trenches and remove ground and underground obstacles;

[0010] S30: Position the pile driver and check and verify the horizontality and verticality of the pile driver;

[0011] S40: The alignment and positioning device is used to adjust the alignment position of the pile driver;

[0012] S50: Mix cement grout, turn on the air compressor, and deliver the grout to the drill bit of the pile driver;

[0013] S60: The pile driver drill bit sprays grout and air-cuts the soil to sink to the designed pile bottom elevation;

[0014] S80: The pile driver drill bit is sprayed with grout and air and lifted to the designed pile top elevation;

[0015] S90: Clean the mud from the trench.

[0016] The technical effects of the five-axis stirring pile micro-disturbance construction method provided by this invention in complex environments are as follows: Through construction layout; trench excavation and removal of ground and underground obstacles; positioning of the pile driver; correction and verification of the pile driver's horizontal and vertical alignment; adjustment of the pile driver's aligned position using an alignment and positioning device; mixing of cement slurry; starting the air compressor and delivering the slurry to the pile driver's drill bit; the pile driver's drill bit spraying slurry and air cutting the soil to sink to the designed pile bottom elevation; the pile driver's drill bit spraying slurry and air lifting to the designed pile top elevation; and cleaning the mud in the trench, this method can solve the problem of inaccurate positioning and construction location issues inherent in existing five-axis stirring pile micro-disturbance construction methods.

[0017] Based on the above technical solution, the five-axis stirring pile micro-disturbance construction method for complex environments of the present invention can be further improved as follows:

[0018] The alignment and positioning device includes a laser rangefinder, an angle monitoring device, a safety monitoring device, and an alignment and positioning system. The alignment and positioning system is electrically connected to the laser rangefinder, the angle monitoring device, and the safety monitoring device.

[0019] The laser rangefinder is used to measure the distance between the pile driver and the ground.

[0020] The angle monitoring device is a Hall angle sensor, which is installed at the drill bit position of the pile driver to monitor the angle of the drill bit.

[0021] The safety monitoring device includes millimeter-wave radar anti-collision and mechanical limit sensors, which are installed at the drill bit position of the pile driver to monitor the distance between the pile driver and surrounding objects.

[0022] Furthermore, the laser ranging device includes a laser ranging component, an accelerometer, and a processor, wherein the processor is electrically connected to the laser ranging component and the accelerometer.

[0023] The accelerometer is located at the bottom of the laser ranging component and is used to detect the angle of the laser ranging component.

[0024] The laser ranging component is fixed around the pile driver drill bit and is used to detect the distance between the pile driver drill bit and the ground.

[0025] The processor is used to combine the distance and angle measured by the laser ranging component and the accelerometer to calculate the actual distance between the pile driver and the ground.

[0026] The accelerometer is a three-axis gyroscope.

[0027] Furthermore, the specific steps by which the processor calculates the actual distance between the pile driver and the ground by combining the distance and angle measured by the laser ranging component and the accelerometer include:

[0028] The first step is to collect distance and angle data measured by the laser ranging component and the accelerometer.

[0029] The second step is to calculate the actual distance between the pile driver and the ground:

[0030] L=dsinα;

[0031] Where L is the actual distance between the pile driver and the ground, d is the distance measured by the laser ranging component, and α is the angle measured by the acceleration sensor.

[0032] Furthermore, the alignment and positioning system includes a laser ranging module, an angle monitoring module, a safety monitoring module, and a path planning module;

[0033] The laser ranging module is used to obtain the actual distance between the pile driver and the ground measured by the laser ranging device, and send the actual distance between the pile driver and the ground to the path planning module;

[0034] The angle monitoring module is used to obtain the angle of the pile driver and transmit the angle data to the path planning module;

[0035] The safety monitoring module is used to obtain the distance between the pile driver and surrounding objects and transmit the data to the path planning module;

[0036] The path planning module is used to plan the distance and angle of the piling machine's movement and transmit it to the piling machine's control room.

[0037] Furthermore, the specific steps by which the path planning module plans the distance and angle of the pile driver's movement include:

[0038] The first step is for the operator to establish a three-dimensional coordinate axis;

[0039] The second step involves the operator sequentially importing the actual distance between the pile driver and the ground, the angle data of the pile driver, and the distance between the pile driver and surrounding objects into the three-dimensional coordinate axis.

[0040] The third step is for the operator to determine the movement path of the piling machine.

[0041] Furthermore, the laser ranging component includes a laser transmitter and a laser receiver. The laser transmitter is located at the drill bit position of the pile driver, and the laser receiver is located on the ground. The laser transmitter and the laser receiver are positioned opposite each other.

[0042] Furthermore, the specific steps for positioning the pile driver and correcting and verifying its horizontal and vertical alignment include:

[0043] The first step is to determine the flatness of the pile driver's location at the construction site, and then move the pile driver in four directions: up, down, left, and right, ensuring smooth movement.

[0044] The second step is to use a theodolite to observe the pile driver and adjust its horizontal and vertical orientation.

[0045] The third step is to mark a 2mm deep ruler line on the drill rod of the piling machine to control the construction pile length.

[0046] Furthermore, the specific steps for excavating trenches and clearing surface and underground obstacles include:

[0047] The first step is to determine the benchmark points for on-site construction of the mixing piles;

[0048] The second step is to clear debris from the ground near the reference point;

[0049] The third step is to use an excavator to excavate the trench along the center line of the mixing piles being constructed on site. The trench is in the shape of an "I" and is 1.2m wide and 1.2m deep.

[0050] Compared with existing technologies, the beneficial effects of the five-axis stirring pile micro-disturbance construction method provided by this invention in complex environments are as follows: Through construction layout; trench excavation and removal of ground and underground obstacles; positioning of the pile driver; correction and verification of the pile driver's horizontal and verticality; adjustment of the pile driver's aligned position using an alignment and positioning device; mixing cement slurry; turning on the air compressor and sending the slurry to the pile driver's drill bit; the pile driver's drill bit spraying slurry and air cutting the soil to sink to the designed pile bottom elevation; the pile driver's drill bit spraying slurry and air lifting to the designed pile top elevation; and cleaning the mud in the trench, this method can solve the problem of inaccurate positioning caused by the difficulty in precise positioning in existing five-axis stirring pile micro-disturbance construction methods. Attached Figure Description

[0051] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is an operation flowchart for a micro-disturbance construction method for five-axis stirring piles under complex conditions. Detailed Implementation

[0053] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is an operation flowchart for a micro-disturbance construction method for five-axis stirring piles under complex environments. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0057] like Figure 1 The diagram shows the operation flowchart of a five-axis stirring pile micro-disturbance construction method under complex environments provided by the present invention. The diagram includes the following steps:

[0058] S10: Construction layout;

[0059] S20: Excavate trenches and remove ground and underground obstacles;

[0060] S30: Position the pile driver and check its horizontality and verticality;

[0061] S40: Use an alignment and positioning device to adjust the alignment position of the pile driver;

[0062] S50: Mix cement grout, turn on the air compressor, and deliver the grout to the pile driver drill bit;

[0063] S60: The pile driver drill bit sprays grout and pneumatically cuts the soil to sink to the designed pile bottom elevation;

[0064] S80: The pile driver drill bit is sprayed with grout and pneumatically lifted to the designed pile top elevation;

[0065] S90: Clean the mud from the trench.

[0066] During use, the following steps are performed: construction layout; trench excavation and removal of ground and underground obstacles; positioning of the pile driver and correction and verification of its horizontal and verticality; adjustment of the pile driver's alignment position using an alignment and positioning device; mixing of cement slurry, starting the air compressor, and sending the slurry to the pile driver's drill bit; the pile driver's drill bit spraying slurry and air cutting the soil to sink to the designed pile bottom elevation; the pile driver's drill bit spraying slurry and air lifting to the designed pile top elevation; and cleaning the mud in the trench.

[0067] In the above technical solution, the alignment and positioning device includes a laser rangefinder, an angle monitoring device, a safety monitoring device, and an alignment and positioning system. The alignment and positioning system is electrically connected to the laser rangefinder, the angle monitoring device, and the safety monitoring device.

[0068] Laser rangefinders are used to measure the distance between the pile driver and the ground.

[0069] The angle monitoring device is a Hall angle sensor, which is installed at the drill bit position of the piling machine to monitor the angle of the drill bit.

[0070] The safety monitoring device includes millimeter-wave radar anti-collision and mechanical limit sensors, which are installed at the drill bit position of the piling machine to monitor the distance between the piling machine and surrounding objects.

[0071] Furthermore, in the above technical solution, the laser ranging device includes a laser ranging component, an acceleration sensor, and a processor, and the processor is electrically connected to the laser ranging component and the acceleration sensor.

[0072] An accelerometer is located at the bottom of the laser ranging assembly and is used to detect the angle of the laser ranging assembly.

[0073] The laser ranging component is fixed around the pile driver drill bit to detect the distance between the drill bit and the ground.

[0074] The processor is used to combine the distance and angle measured by the laser ranging component and the accelerometer to calculate the actual distance between the pile driver and the ground.

[0075] The accelerometer is a three-axis gyroscope.

[0076] Furthermore, in the above technical solution, the specific steps by which the processor combines the distance and angle measured by the laser ranging component and the accelerometer to determine the actual distance between the pile driver and the ground include:

[0077] The first step is to collect distance and angle data measured by the laser ranging component and the accelerometer.

[0078] The second step is to calculate the actual distance between the piling machine and the ground:

[0079] L=dsinα;

[0080] Where L is the actual distance between the pile driver and the ground, d is the distance measured by the laser ranging component, and α is the angle measured by the accelerometer.

[0081] Furthermore, in the above technical solution, the alignment and positioning system includes a laser ranging module, an angle monitoring module, a safety monitoring module, and a path planning module;

[0082] The laser ranging module is used to obtain the actual distance between the pile driver and the ground measured by the laser ranging device, and then sends the actual distance between the pile driver and the ground to the path planning module.

[0083] The angle monitoring module is used to acquire the angle of the piling machine and transmit the angle data to the path planning module;

[0084] The safety monitoring module is used to obtain the distance between the pile driver and surrounding objects and transmit the data to the path planning module;

[0085] The path planning module is used to plan the distance and angle of the piling machine's movement and transmit this information to the piling machine's control room.

[0086] Furthermore, in the above technical solution, the specific steps for the path planning module to plan the distance and angle of the pile driver's movement include:

[0087] The first step is for the operator to establish a three-dimensional coordinate axis;

[0088] The second step is for the operator to import the actual distance between the pile driver and the ground, the angle data of the pile driver, and the distance between the pile driver and surrounding objects into the three-dimensional coordinate axis in sequence.

[0089] The third step is for the operator to determine the movement path of the piling machine.

[0090] Furthermore, in the above technical solution, the laser ranging component includes a laser transmitter and a laser receiver. The laser transmitter is located at the drill bit position of the piling machine, and the laser receiver is located on the ground. The laser transmitter and the laser receiver are positioned opposite each other.

[0091] Furthermore, in the above technical solution, the specific steps for positioning, correcting, and verifying the horizontal and verticality of the pile driver include:

[0092] The first step is to determine the flatness of the pile driver's position at the construction site, and then move the pile driver in four directions (up, down, left, and right) to ensure smooth movement.

[0093] The second step is to use a theodolite to observe the piling machine and adjust its horizontal and vertical positions.

[0094] The third step is to mark a 2mm deep ruler line on the drill rod of the piling machine to control the length of the construction pile.

[0095] Furthermore, in the above technical solution, the specific steps for excavating trenches and clearing ground and underground obstacles include:

[0096] The first step is to determine the benchmark points for on-site construction of the mixing piles;

[0097] The second step is to clear debris from the ground near the reference point;

[0098] The third step is to use an excavator to dig a trench along the center line of the mixing piles being constructed on site. The trench is in the shape of an "I" and is 1.2m wide and 1.2m deep.

[0099] Specifically, the principle of this invention is as follows: construction layout; trench excavation and removal of ground and underground obstacles; positioning of the pile driver, and correction and verification of the pile driver's horizontal and verticality; adjustment of the pile driver's aligned position using an alignment and positioning device; mixing of cement slurry, starting the air compressor, and sending the slurry to the pile driver's drill bit; the pile driver's drill bit spraying slurry and air cutting the soil to sink to the designed pile bottom elevation; the pile driver's drill bit spraying slurry and air lifting to the designed pile top elevation; and cleaning the mud in the trench.

Claims

1. A method for micro-disturbance construction of five-axis stirring piles in complex environments, characterized in that, It has the following steps: S10: Construction layout; S20: Excavate trenches and remove ground and underground obstacles; S30: Position the pile driver and check and verify the horizontality and verticality of the pile driver; S40: The alignment and positioning device is used to adjust the alignment position of the pile driver; S50: Mix cement grout, turn on the air compressor, and deliver the grout to the drill bit of the pile driver; S60: The pile driver drill bit sprays grout and air-cuts the soil to sink to the designed pile bottom elevation; S80: The pile driver drill bit is sprayed with grout and air and lifted to the designed pile top elevation; S90: Clean the mud from the trench; The alignment and positioning device includes a laser rangefinder, an angle monitoring device, a safety monitoring device, and an alignment and positioning system. The alignment and positioning system is electrically connected to the laser rangefinder, the angle monitoring device, and the safety monitoring device. The laser rangefinder is used to measure the distance between the pile driver and the ground. The angle monitoring device is a Hall angle sensor, which is installed at the drill bit position of the pile driver to monitor the angle of the drill bit. The safety monitoring device includes millimeter-wave radar anti-collision and mechanical limit sensors. The millimeter-wave radar anti-collision and mechanical limit sensors are installed at the drill bit position of the pile driver to monitor the distance between the pile driver and surrounding objects. The laser ranging device includes a laser ranging component, an acceleration sensor, and a processor, wherein the processor is electrically connected to the laser ranging component and the acceleration sensor. The accelerometer is located at the bottom of the laser ranging component and is used to detect the angle of the laser ranging component. The laser ranging component is fixed around the pile driver drill bit and is used to detect the distance between the pile driver drill bit and the ground. The processor is used to combine the distance and angle measured by the laser ranging component and the accelerometer to calculate the actual distance between the pile driver and the ground. The specific steps by which the processor calculates the actual distance between the pile driver and the ground by combining the distance and angle measured by the laser ranging component and the accelerometer include: The first step is to collect distance and angle data measured by the laser ranging component and the accelerometer. The second step is to calculate the actual distance between the pile driver and the ground: L=dsinα; Where L is the actual distance between the pile driver and the ground, d is the distance measured by the laser ranging component, and α is the angle measured by the acceleration sensor.

2. The method for micro-disturbance construction of five-axis stirring piles in complex environments according to claim 1, characterized in that, The alignment and positioning system includes a laser ranging module, an angle monitoring module, a safety monitoring module, and a path planning module. The laser ranging module is used to obtain the actual distance between the pile driver and the ground measured by the laser ranging device, and send the actual distance between the pile driver and the ground to the path planning module; The angle monitoring module is used to obtain the angle of the pile driver and transmit the angle data to the path planning module; The safety monitoring module is used to obtain the distance between the pile driver and surrounding objects and transmit the data to the path planning module; The path planning module is used to plan the distance and angle of the piling machine's movement and transmit it to the piling machine's control room.

3. The method for micro-disturbance construction of five-axis stirring piles in complex environments according to claim 2, characterized in that, The specific steps by which the path planning module plans the distance and angle of the pile driver's movement include: The first step is for the operators to establish a three-dimensional coordinate axis; The second step involves the operator sequentially importing the actual distance between the pile driver and the ground, the angle data of the pile driver, and the distance between the pile driver and surrounding objects into the three-dimensional coordinate axis. The third step is for the operator to determine the movement path of the piling machine.

4. The method for micro-disturbance construction of five-axis stirring piles in complex environments according to claim 3, characterized in that, The laser ranging component includes a laser transmitter and a laser receiver. The laser transmitter is located at the drill bit position of the pile driver, and the laser receiver is located on the ground. The laser transmitter and the laser receiver are positioned opposite each other.

5. The method for micro-disturbance construction of five-axis stirring piles in complex environments according to claim 4, characterized in that, The specific steps for positioning the pile driver and correcting and verifying its horizontal and verticality include: The first step is to determine the flatness of the pile driver's location at the construction site, and then move the pile driver in four directions: up, down, left, and right, ensuring smooth movement. The second step is to use a theodolite to observe the pile driver and adjust its horizontal and vertical orientation. The third step is to mark a 2mm deep ruler line on the drill rod of the piling machine to control the construction pile length.

6. The method for micro-disturbance construction of five-axis stirring piles in complex environments according to claim 5, characterized in that, The specific steps for excavating trenches and clearing ground and underground obstacles include: The first step is to determine the benchmark points for on-site construction of the mixing piles; The second step is to clear debris from the ground near the reference point; The third step is to use an excavator to excavate the trench along the center line of the mixing piles being constructed on site. The trench is in the shape of an "I" and is 1.2m wide and 1.2m deep.

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