Screw pile construction information automatic acquisition device and method

Abstract

The invention provides a screw pile construction information automatic acquisition device and method. The automatic screw pile construction information acquisition device comprises a construction data acquisition terminal, and the construction data acquisition terminal is connected with a user service system through an IOT platform; the construction data acquisition terminal is connected with a drill hole coordinate acquisition unit, a filling quantity monitoring unit, a drill rod perpendicularity monitoring unit, a drill rod rotating speed monitoring unit and a working state monitoring unit; in the invention, a construction data acquisition terminal is used for acquiring and monitoring key parameters of a whole screw pile construction process, such as a drilling coordinate, an injection amount, a drilling rod perpendicularity, a drilling rod rotating speed and a pile machine working state in real time through a drilling coordinate acquisition unit, an injection amount monitoring unit, a drilling rod perpendicularity monitoring unit, a drilling rod rotating speed monitoring unit and a working state monitoring unit; and construction in-situ measurement is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of civil engineering pile foundation construction monitoring, and in particular relates to a device and method for automatically collecting screw pile construction information. Background Art

[0002] Traditional screw pile construction relies on manual recording of parameters such as drilling depth, rotational speed, and torque. This is subject to data lag, significant subjective errors, and difficulty in tracing. Key construction parameters, such as verticality and response to ground changes, lack real-time monitoring, leading to uncontrollable pile quality.

[0003] Therefore, it is necessary to design an automatic screw pile construction information collection device and method that can realize real-time collection of key parameters of the entire screw pile construction process, quality deviation warning and digital archiving, and improve the controllability of pile quality to solve the current technical problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides an automatic screw pile construction information collection device and method that can realize real-time collection of key parameters of the entire screw pile construction process, quality deviation warning and digital archiving, thereby improving the controllability of pile quality.

[0005] The technical solution of the present invention is: an automatic screw pile construction information collection device, comprising a construction data collection terminal, wherein the construction data collection terminal is connected to a user business system via an IOT platform;

[0006] The construction data acquisition terminal is connected to a drilling coordinate acquisition unit, an injection volume monitoring unit, a drill rod verticality monitoring unit, a drill rod speed monitoring unit, and a working status monitoring unit;

[0007] The drilling coordinate acquisition unit has at least two positioning directional antennas, which are connected to the construction data acquisition terminal and are used to detect the plane coordinates of fixed points and transmit them to the construction data acquisition terminal;

[0008] The injection amount monitoring unit has a floor mop pump current sensor for monitoring the current on and off in the floor mop pump electrical box. The floor mop pump current sensor is connected to the construction data acquisition terminal and is used to record the working time of the floor mop pump and calculate the current injection amount of the pile;

[0009] The drill rod verticality monitoring unit comprises a verticality sensor mounted on the pile driver, and the verticality sensor is connected to the construction data acquisition terminal;

[0010] The drill rod speed monitoring unit has a speed sensor for collecting the drill rod speed, and the speed sensor is connected to the construction data collection terminal;

[0011] The working status monitoring unit has a power head current sensor for monitoring the current on and off of the live wire of the three-phase power distribution cabinet of the screw pile power head. The power head current sensor is connected to the construction data acquisition terminal to determine whether the screw pile power head is working.

[0012] Furthermore, the drilling coordinate acquisition unit has two positioning directional antennas, and the two positioning directional antennas are installed at fixed positions on the horizontal hull of the pile driver.

[0013] Furthermore, the automatic collection device for screw pile construction information also includes a height-fixing antenna, which is connected to the construction data collection terminal and is installed at an unobstructed position on the top of the screw pile power head and is perpendicular to the ground.

[0014] Furthermore, the drill rod speed monitoring unit has a Hall speed sensor and an adsorption magnet matched therewith; the Hall speed sensor is installed below the screw pile power head, and the adsorption magnet is installed on the drill rod relative to the Hall speed sensor.

[0015] The method for automatically collecting screw pile construction information includes the following steps:

[0016] Drilling coordinate collection;

[0017] Collection of current pile filling volume;

[0018] Drill pipe verticality monitoring;

[0019] Working status monitoring;

[0020] Thread footage monitoring;

[0021] The above-mentioned collected and monitored data are transmitted to a construction data collection terminal, and the screw pile construction data is displayed in real time on the construction data collection terminal.

[0022] Furthermore, the drilling coordinate collection includes the following steps:

[0023] Two positioning directional antennas are installed at fixed positions on the horizontal hull of the pile driver;

[0024] The direction and distance between the drilling position and the two positioning directional antennas are fixed;

[0025] The coordinates of the drilling position are calculated using the coordinates of the two positioning directional antennas.

[0026] Furthermore, the current pile filling amount collection includes the following steps:

[0027] A test pile is completed on site and is considered as a standard pile by default. That is, the actual injection volume of the pile is deemed to be the same as the theoretically calculated injection volume and is recorded as V.

[0028] Start pumping concrete, and manually record the working time t of the mopping pump 95, and calculate the injection volume D = V / t of the mopping pump 95 per second;

[0029] The current on-time T of the current in the mop pump electrical box during the current pile pouring is monitored by the mop pump current sensor; the current pile pouring amount L=D×T is calculated.

[0030] Furthermore, the drill pipe verticality monitoring includes the following steps:

[0031] A verticality sensor while drilling is installed on the horizontal hull of the pile driver to monitor the verticality of the drill pipe.

[0032] Furthermore, the working status monitoring includes the following steps:

[0033] The power head current sensor monitors the current value of the live wire of the three-phase power distribution cabinet of the screw pile power head, and determines whether the screw pile power head is working according to the current value;

[0034] The mop pump current sensor monitors the current value of the current in the mop pump electrical box, and determines whether the mop pump is working based on the current value.

[0035] Furthermore, the thread footage monitoring includes the following steps:

[0036] The rotation speed sensor is used to collect the drill pipe rotation speed, and the fixed height antenna is used to collect the depth change value of the drill pipe;

[0037] Calculate the effective footage of the drill pipe thread.

[0038] Beneficial effects of the present invention:

[0039] (1) In the present invention, the construction data acquisition terminal is used to collect and monitor key parameters of the entire screw pile construction process, such as the drilling coordinate acquisition unit, the injection amount monitoring unit, the drill rod verticality monitoring unit, the drill rod speed monitoring unit, and the working status monitoring unit, in real time, thereby realizing in-situ measurement of the construction process;

[0040] (2) The threshold range of key parameters of the entire screw pile construction process can be preset on the construction data collection terminal. When the parameter value collected in real time exceeds the threshold range, an early warning is issued to facilitate timely adjustment and control to ensure construction quality;

[0041] (3) The construction data acquisition terminal transmits the key parameters of the entire screw pile construction process collected in real time to the user's business system through the IOT platform for digital archiving;

[0042] (4) There is no need to modify the existing pile driver structure, and it is compatible with mainstream screw pile driver models, which reduces the error and labor intensity of manual measurement and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a principle block diagram of the automatic collection device for screw pile construction information in the present invention.

[0044] Figure 2 It is a structural schematic diagram of the pile foundation in the present invention.

[0045] Figure 3 This is the principle diagram of drilling coordinate acquisition in the present invention. DETAILED DESCRIPTION

[0046] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present invention, its application, or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0047] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different parts. Terms such as "include" or "comprising" mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0048] like Figure 1 and 2As shown, a device for automatically collecting information on screw pile construction is disclosed, including a construction data collection terminal 3, which is connected to a user business system 1 through an IOT platform 2; the construction data collection terminal 3 is connected to a drilling coordinate collection unit 4, a pouring amount monitoring unit 5, a drill rod verticality monitoring unit 6, a drill rod speed monitoring unit 7, and a working status monitoring unit 8; the drilling coordinate collection unit 4 has at least two positioning directional antennas 41, which are connected to the construction data collection terminal 3 and are used to detect the plane coordinates of fixed points and transmit them to the construction data collection terminal 3. The data collection terminal 3; the injection amount monitoring unit 5 has a floor mop pump current sensor 51 for monitoring the current on and off in the floor mop pump electrical box, and the floor mop pump current sensor 51 is connected to the construction data collection terminal 3 to record the working time of the floor mop pump 95 and calculate the current injection amount of the pile; the drill rod verticality monitoring unit 6 has a verticality sensor 61 installed on the pile driver 9, and the verticality sensor 61 is connected to the construction data collection terminal 3; the drill rod speed monitoring unit 7 has a speed sensor 71 for collecting the speed of the drill rod 94, and the speed sensor 71 is connected to the construction data collection terminal 3; the working status monitoring Unit 8 has a power head current sensor for monitoring the current on and off of the three-phase power distribution cabinet of the screw pile power head 93. The power head current sensor is connected to the construction data acquisition terminal to determine whether the screw pile power head 93 is working. In this embodiment, the construction data acquisition terminal 3 is installed inside the pile driver cab 92, and is used to collect and monitor the drilling coordinates, injection amount, drill rod verticality, drill rod speed monitoring unit 7, and working status monitoring unit 8 in real time. The key parameters of the entire construction process; through the multi-source data time series alignment algorithm, the drilling parameters and geological responses are integrated and processed; the threshold range of the key parameters of the entire screw pile construction process can be preset on the construction data acquisition terminal 3, and an early warning will be issued when the parameter value collected in real time exceeds the threshold range, so as to facilitate timely adjustment and control to ensure construction quality; in addition, a verticality dynamic compensation model can also be developed to predict the pile body deviation based on the inclination data and issue an early warning; the construction data acquisition terminal 3 transmits the key parameters of the entire screw pile construction process collected in real time to the user business system 1 through the IOT platform 2 for digital archiving.

[0049] In some embodiments, the drilling coordinate acquisition unit 4 has two positioning directional antennas 41, which are installed at fixed positions on the pile driver's horizontal hull 91; the two positioning directional antennas 41 are connected to the construction data acquisition terminal 3 to detect the plane coordinates of the fixed points and transmit them to the construction data acquisition terminal; the coordinates of the two fixed positions are obtained through the two positioning directional antennas 41, and the direction and distance between the drilling position and the two positioning directional antennas 41 are fixed. The coordinates of the drilling position can be calculated through the coordinates 41 of the two positioning directional antennas; specifically, Figure 3 As shown in the plane coordinate system, the positioning directional antenna is installed at the fixed positions A1(x1,y1) and A2(x2,y2) on the horizontal hull of the pile driver, and the drilling position is B(x b ,y b ), the distances between A1, A2 and the three points on the same plane are known quantities, and the drilling position B (x b ,y b ).

[0050] In some embodiments, the automatic collection device for screw pile construction information also includes a height-fixing antenna 72, which is connected to the construction data collection terminal 3. The height-fixing antenna 72 is installed in an unobstructed place at the top of the screw pile power head 93 and is perpendicular to the ground; the vertical coordinate of the drill rod 94 is measured by the high antenna, and the initial elevation value C(z0) is subtracted from the fixed length h of the drill rod 94 to obtain the initial elevation C0(z0-h) of the borehole; after monitoring the operation of the screw pile power head, each time the drill rod moves up and down a certain vertical distance Δz, the bottom elevation C'(z0-h+ΣΔz) of the borehole at this time can be obtained, which is the drilling depth value; specifically, the height-fixing antenna 72 is a vibration-resistant height-fixing antenna; in addition, the connecting line of the height-fixing antenna 72 needs to be bundled densely and firmly to avoid damage to the feeder when the pile driver is working or in windy weather; the height-fixing antenna 72 is used to detect the vertical coordinates of the up and down moving points and transmit them to the construction data collection terminal 3.

[0051] In some embodiments, the drill rod speed monitoring unit 7 has a Hall speed sensor 71 and an adsorption magnet matched with it; the Hall speed sensor 71 is installed below the screw pile power head 93, and the adsorption magnet and the Hall speed sensor 71 are installed on the drill rod 94 relative to each other; when the drill rod 94 rotates, the adsorption magnet is driven to rotate, and each time the adsorption magnet rotates to the position corresponding to the Hall speed sensor 71, the Hall speed sensor 71 is triggered once. According to the number of times the Hall speed sensor 71 is triggered, the number of revolutions of the drill rod 94 can be collected.

[0052] In the above embodiment, the construction data acquisition terminal 3 can be implemented by connecting a PLC to a human-machine interface; in addition, an analog-to-digital conversion module can also be connected according to the needs of data acquisition and monitoring.

[0053] In some embodiments, a method for automatically collecting screw pile construction information is disclosed, comprising the following steps:

[0054] Drilling coordinate collection;

[0055] Collection of current pile filling volume;

[0056] Drill pipe 94 verticality monitoring;

[0057] Working status monitoring;

[0058] Thread footage monitoring;

[0059] The above-mentioned collected and monitored data are transmitted to the construction data collection terminal 3 , and the screw pile construction data is displayed in real time on the construction data collection terminal 3 .

[0060] In some embodiments, drilling coordinate collection includes the following steps:

[0061] Two positioning directional antennas 41 are installed at fixed positions on the pile driver's horizontal hull 91;

[0062] The direction and distance between the drilling position and the two positioning directional antennas are fixed;

[0063] The coordinates of the drilling position are calculated by the coordinates of the two positioning directional antennas 41;

[0064] Specifically, such as Figure 3 As shown in the plane coordinate system, the positioning directional antenna is installed at the fixed positions A1(x1,y1) and A2(x2,y2) on the horizontal hull of the pile driver, and the drilling position is B(x b ,y b ), the distances between A1, A2 and the three points on the same plane are known quantities, and the drilling position B (x b ,y b ).

[0065] In some embodiments, collecting the current pile filling volume includes the following steps:

[0066] A test pile is completed on site and is considered as a standard pile by default. That is, the actual injection volume of the pile is deemed to be the same as the theoretically calculated injection volume and is recorded as V.

[0067] Start pumping concrete, and manually record the working time t of the mopping pump 95, and calculate the injection volume D = V / t of the mopping pump 95 per second;

[0068] The current on time T in the mop pump electrical box during the current pile pouring is monitored by the mop pump current sensor 51. T is the working time of the mop pump during the current pile pouring.

[0069] Calculate the current pile injection volume L = D × T;

[0070] The units of t and T are both seconds (s), and the units of L and V are both m. 3 , the unit of D is m 3 / s.

[0071] In some embodiments, drill pipe verticality monitoring includes the following steps:

[0072] A verticality sensor 61 is installed on the pile driver horizontal hull 91 to monitor the verticality of the drill pipe 94 through the verticality sensor 61;

[0073] The data of the verticality sensor 61 is transmitted to the construction data acquisition terminal 3 via wireless or wired means, thereby realizing verticality monitoring while drilling;

[0074] It should also be noted that before the screw pile construction, the pile driver's horizontal hull 91 needs to be strictly leveled to ensure that the drill rod is perpendicular to the horizontal plane. Therefore, the verticality sensor 61 at this time can be considered to be in a strictly horizontal state. After the screw pile construction reaches a certain stage, the verticality sensor 61 can monitor the inclination angle α between the hull and the horizontal plane. At this time, the inclination of the drill rod is the angle α with the plane of the pile driver's horizontal hull 91.

[0075] In some embodiments, the working status monitoring includes the following steps:

[0076] The power head current sensor monitors the current value of the live wire of the three-phase power distribution cabinet of the screw pile power head 93, and determines whether the screw pile power head 93 is working according to the current value;

[0077] The mop pump current sensor monitors the current value of the current in the mop pump electrical box, and determines whether the mop pump 51 is working based on the current value.

[0078] In some embodiments, thread footage monitoring includes the following steps:

[0079] The rotation speed sensor is used to collect the rotation speed of the drill pipe, and the height-fixing antenna 72 is used to collect the depth change value of the drill pipe 94;

[0080] Calculate the effective footage of the thread of the drill rod 94;

[0081] Specifically, the adsorption magnet cooperates with the Hall speed sensor 71 to detect the time taken by the drill rod 94 to rotate one circle, and further calculates its rotation speed; by calculating the depth change value of the drill rod 94 when it rotates one circle, the effective thread footage of the drill rod 94 can be calculated.

[0082] The screw pile forming process adopts a combination of synchronous and asynchronous technologies to achieve hole forming and pile forming; in the asynchronous technology, the drill bit will drill down or lift up one pitch every time it rotates more than two times; for example, the pitch of a Φ400 pile is 400, while the pitch of a Φ500 pile is 500; this technology squeezes to form a cylindrical soil hole or pile; in the synchronous technology, the drill bit drops or lifts up one pitch every time the drill bit rotates one turn, thereby forming a threaded soil or pile at the bottom of the screw pile; in conventional construction, it is impossible to accurately monitor the rotation of the screw drill bit, resulting in actual construction not being carried out according to the design requirements, and an effective thread cannot be formed at the bottom, thereby losing part of the bearing capacity of the screw pile, and the concrete pouring volume is also increased compared to the design value; the use of an adsorption magnet in combination with the Hall speed sensor 71 can effectively detect the rotation speed of the screw pile drill rod, and coordinate with the depth change value of the fixed height antenna to calculate the effective thread advance distance.

[0083] In the above embodiment, the drilling coordinate acquisition unit 4, the injection volume monitoring unit 5, the drill rod verticality monitoring unit 6, the drill rod speed monitoring unit 7, and the working status monitoring unit 8 transmit data to the construction data acquisition terminal 3 via a wireless or wired network. The construction data acquisition terminal 3 displays the screw pile construction data in real time, providing an intuitive reference for construction personnel.

[0084] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0085] The above-described embodiments represent only some embodiments of the present invention. Although the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be based on the appended claims.

Claims

1. An automatic data collection device for screw pile construction, characterized by: It includes a construction data collection terminal, which is connected to the user's business system through the IOT platform; The construction data acquisition terminal is connected to a drilling coordinate acquisition unit, an injection volume monitoring unit, a drill rod verticality monitoring unit, a drill rod speed monitoring unit, and a working status monitoring unit; The drilling coordinate acquisition unit has at least two positioning directional antennas, which are connected to the construction data acquisition terminal and are used to detect the plane coordinates of fixed points and transmit them to the construction data acquisition terminal; The injection amount monitoring unit has a floor mop pump current sensor for monitoring the current on and off in the floor mop pump electrical box. The floor mop pump current sensor is connected to the construction data acquisition terminal and is used to record the working time of the floor mop pump and calculate the current injection amount of the pile; The drill rod verticality monitoring unit comprises a verticality sensor mounted on the pile driver, and the verticality sensor is connected to the construction data acquisition terminal; The drill rod speed monitoring unit has a speed sensor for collecting the drill rod speed, and the speed sensor is connected to the construction data collection terminal; The working status monitoring unit has a power head current sensor for monitoring the current on and off of the live wire of the three-phase power distribution cabinet of the screw pile power head. The power head current sensor is connected to the construction data acquisition terminal to determine whether the screw pile power head is working.

2. The automatic screw pile construction information collection device according to claim 1, characterized in that: The drilling coordinate acquisition unit has two positioning directional antennas, which are installed at fixed positions on the horizontal hull of the pile driver.

3. The automatic screw pile construction information collection device according to claim 1, characterized in that: It also includes a height-fixing antenna, which is connected to the construction data acquisition terminal. The height-fixing antenna is installed at an unobstructed position on the top of the screw pile power head and is perpendicular to the ground.

4. The automatic screw pile construction information collection device according to claim 1, characterized in that: The drill rod speed monitoring unit comprises a Hall speed sensor and an adsorption magnet matched therewith; the Hall speed sensor is installed below the screw pile power head, and the adsorption magnet is installed on the drill rod relative to the Hall speed sensor.

5. A method for automatically collecting screw pile construction information, characterized in that: The following steps are involved: Drilling coordinate collection; Collection of current pile filling volume; Drill pipe verticality monitoring; Working status monitoring; Thread footage monitoring; The above-mentioned collected and monitored data are transmitted to a construction data collection terminal, and the screw pile construction data is displayed in real time on the construction data collection terminal.

6. The method for automatically collecting screw pile construction information according to claim 5, characterized in that: The drilling coordinate acquisition comprises the following steps: Two positioning directional antennas are installed at fixed positions on the horizontal hull of the pile driver; The direction and distance between the drilling position and the two positioning directional antennas are fixed; The coordinates of the drilling position are calculated using the coordinates of the two positioning directional antennas.

7. The method for automatically collecting screw pile construction information according to claim 5, characterized in that: The current pile filling amount collection includes the following steps: A test pile is completed on site and is considered as a standard pile by default. That is, the actual injection volume of the pile is deemed to be the same as the theoretically calculated injection volume and is recorded as V. Start pumping concrete, and manually record the working time t of the mopping pump 95, and calculate the injection volume D = V / t of the mopping pump 95 per second; The current sensor of the mop pump is used to monitor the current on-time T in the mop pump electrical box during the current pile pouring; Calculate the current pile injection volume L=D×T.

8. The method for automatically collecting screw pile construction information according to claim 5, characterized in that: The drill pipe verticality monitoring comprises the following steps: A verticality sensor while drilling is installed on the horizontal hull of the pile driver to monitor the verticality of the drill pipe.

9. The method for automatically collecting screw pile construction information according to claim 5, characterized in that: The working status monitoring comprises the following steps: The power head current sensor monitors the current value of the live wire of the three-phase power distribution cabinet of the screw pile power head, and determines whether the screw pile power head is working according to the current value; The mop pump current sensor monitors the current value of the current in the mop pump electrical box, and determines whether the mop pump is working based on the current value.

10. The method for automatically collecting screw pile construction information according to claim 5, characterized in that: The thread footage monitoring comprises the following steps: The rotation speed sensor is used to collect the drill pipe rotation speed, and the fixed height antenna is used to collect the depth change value of the drill pipe; Calculate the effective footage of the drill pipe thread.

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