A cement soil mixing pile construction monitoring device and method

Abstract

The present application relates to a cement-soil mixing pile construction monitoring device and method, belonging to the technical field of monitoring systems, which includes a bracket; a positioning plate, fixed on the bracket; a positioning assembly, slidably arranged on the positioning plate and horizontally moving in a direction close to or away from the vertical center line of the positioning plate, the positioning assembly includes a positioning rod and a positioning ball, the positioning rod horizontally penetrates the positioning plate, the positioning ball is hinged to one end of the positioning rod and is used to abut against the outer wall of the drill pipe; an alarm mechanism is used to issue a warning after the positioning rod moves relative to the positioning plate. The present application has the effect of providing a backup monitoring means for the verticality of the pile.

Description

Technical Field

[0001] The present application relates to the technical field of monitoring systems, and in particular to a cement-soil mixing pile construction monitoring device and method. Background Art

[0002] In modern engineering construction, cement-soil mixing piles are an effective foundation treatment technology, and quality control during their construction is particularly important.

[0003] During the drill rod construction process, it is necessary to monitor in real time whether the pile body is tilted. Through the Beidou RTK pile foundation engineering quality information management and control solution, every process in the cement mixing pile foundation construction is managed, including the RTK Beidou positioning module and the inclination detection module. The positioning module uses a GNSS antenna to achieve positioning, and the inclination module is a inclination sensor.

[0004] In actual construction, if a circuit failure occurs in the RTK Beidou positioning module or the inclination detection module, there will be a lack of means to ensure the verticality of the pile, and there will be a lack of backup means. There is a defect that the operator cannot detect the inclination of the drill rod in time, resulting in the inclination of the pile. Summary of the invention

[0005] In order to provide a backup monitoring means for the verticality of pile construction, the present application provides a cement-soil mixing pile construction monitoring device and method.

[0006] In the first aspect, the present application provides a cement soil mixing pile construction monitoring device, which adopts the following technical solution:

[0007] A cement-soil mixing pile construction monitoring device comprises a bracket and also comprises:

[0008] A positioning plate, fixed on the bracket;

[0009] A positioning assembly is slidably arranged on the positioning plate and moves horizontally in a direction close to or away from the vertical center line of the positioning plate. The positioning assembly includes a positioning rod and a positioning ball. The positioning rod horizontally penetrates the positioning plate. The positioning ball is spherically hinged with one end of the positioning rod to abut against the outer wall of the drill pipe.

[0010] The warning mechanism is used to issue a warning after the positioning rod moves relative to the positioning plate.

[0011] By adopting the above technical solution, the bracket is horizontally fixed beside the site where construction is to be carried out, the positioning plate is placed on the outer wall of the drill rod, the distance between the positioning ball and the outer wall of the drill rod is adjusted or the positioning ball is made to abut against the outer wall of the drill rod. When the drill rod tilts during use, the drill rod pushes the positioning ball and the positioning rod to move. At this time, the alarm mechanism issues an alarm to remind the operator to stop construction immediately and readjust the verticality of the drill rod before continuing construction.

[0012] Optionally, the warning mechanism includes a warning component and a linkage component, the warning component including a rack, a knob switch and a warning light, the knob switch being electrically connected to the warning light, the rotation amplitude of the knob of the knob switch itself being used to control the brightness of the warning light, the rack moves in a direction approaching or away from the knob of the knob switch, and the rack is used to engage with the knob of the knob switch; the linkage component includes a first pull rope, a strip plate and a push block, the strip plate being horizontally arranged and fixed on the circumferential outer wall of the positioning plate, the push block being slidably arranged on the strip plate and sliding in a direction approaching or away from the vertical center line of the positioning plate, the first pull rope being used to cause the rack to synchronously displace when the positioning rod is displaced relative to the positioning plate, one end of the first pull rope being fixedly connected to the push block, and the other end being fixedly connected to the top of the rack after passing through the strip plate, the end of the positioning rod away from the positioning ball abuts against the push block; when the positioning rod moves in a direction away from the vertical center line of the positioning plate, the rack moves in a direction approaching the knob switch.

[0013] By adopting the above technical solution, when the drill rod is tilted, the drill rod pushes the positioning ball and the positioning rod to move, and the positioning rod pushes the push block to move away from the drill rod. The push block pulls the rack toward the direction of the knob switch through the first pull rope, and the rack meshes with the knob of the knob switch and rotates the knob to a corresponding angle according to the inclination of the drill rod. The greater the inclination of the drill rod, the greater the rotation angle of the knob. The greater the rotation angle of the knob, the brighter the warning light. The operator can intuitively see the severity of the inclination of the drill rod from the warning light.

[0014] Optionally, the positioning plate is provided with a vertical plate and a plurality of cable tie rings for limiting the transmission direction of the first pull rope. The vertical plate is vertically arranged and fixed under the positioning plate, the cable tie rings are distributed on the positioning plate and the vertical plate, and the rack is slidably arranged on the vertical plate; the knob switch is fixed on the vertical plate and is located above the rack.

[0015] By adopting the above technical solution, the setting of the wire tie ring limits the layout route of the first pull rope, the vertical plate provides a fixed position for the fixation of the knob switch, and limits the sliding path for the sliding of the rack. The dead weight of the rack is utilized so that the rack can pull the push block close to the end of the positioning rod through the first pull rope, so that the inclination of the drill rod can be timely fed back to the movement of the rack through the positioning rod, the push block and the first pull rope.

[0016] Optionally, a baffle is fixed at the bottom of the vertical plate, and a spring is fixed between the baffle and the bottom end of the rack.

[0017] By adopting the above technical solution, the setting of the spring has the effect of further pulling the rack downward.

[0018] Optionally, the positioning plate is semi-annular, and three groups of positioning components are provided and respectively distributed at both ends and a middle position of the positioning plate; the linkage components are arranged corresponding to the number of positioning components arranged.

[0019] By adopting the above technical solution and through the shaping of the positioning plate, three groups of positioning components are distributed in three positions of the drill rod, so as to achieve the effect of expanding the inclination range of monitoring the drill rod. At this time, the detection range is a semicircle with the drill rod as the center point.

[0020] Optionally, the outer ring of the positioning rod located in the middle of the positioning plate is provided with a positioning tube, the positioning tube passes through the positioning plate and is slidably arranged on the positioning plate, the sliding direction of the positioning tube is the same as the length direction of the positioning rod it is ringed with, the diameter of the positioning ball is larger than the inner diameter of the positioning tube, one end of the positioning tube abuts against the push block, and a second pull rope is fixed on the positioning rod located in the middle of the positioning plate, the second pull rope passes through the positioning tube and the strip plate and is fixedly connected to the top of the rack; the positioning ball located in the middle of the positioning plate is magnetic and is used for magnetic adsorption with the drill pipe.

[0021] By adopting the above technical solution, since the distribution range of the three groups of positioning components covers half of the circumference of the drill rod, there is a lack of monitoring equipment on the other side of the drill rod opposite to the positioning tube. Therefore, when the drill rod tilts toward the other side of the drill rod opposite to the positioning tube, the positioning ball is adsorbed on the outer wall of the drill rod, and the drill rod drives the positioning ball and the positioning rod to move. The positioning rod pulls the rack through the second pull rope, and finally an alarm is achieved, thereby ensuring the monitoring range of the drill rod.

[0022] Optionally, adjustment plates are fixed on the outer wall of the positioning tube located in the middle of the positioning plate and on the outer walls of the positioning rods located at both ends of the positioning plate. Adjustment bolts are threadedly connected to the adjustment plates, and the ends of the adjustment bolts abut against the circumferential outer wall of the positioning plate.

[0023] By adopting the above technical solution, if the distance between the positioning ball and the outer wall of the drill pipe needs to be adjusted, it can be done by turning the adjustment bolt. For example, if the drill pipe has an allowable tilt according to the specification requirements, at this time, the distance between the positioning balls at both ends of the positioning plate and the outer wall of the drill pipe is adjusted so that the tilt of the drill pipe within the allowable amount is not reflected on the positioning components at both ends of the positioning plate.

[0024] Optionally, a lampshade made of opaque material is fixed on the positioning plate, a light-transmitting hole is opened on the lampshade, the warning light is located inside the lampshade, a shell is rotatably arranged on the lampshade, the shell is ringed on the outside of the lampshade, the shell rotates relative to the lampshade, the shell is made of light-transmitting material, and the shell itself has multiple colors. When the knob of the knob switch is rotated to different degrees, the light-transmitting hole faces the different colors of the shell.

[0025] By adopting the above technical solution, the parts of different colors on the shell are located at the light-transmitting hole according to the rotation amplitude of the knob. For example, when the knob is rotated half a circle, the green area on the shell is located at the light-transmitting hole, and the operator can see green light, which proves that the drill rod is slightly tilted within the allowable range. As the drill rod tilts, the knob will continue to rotate. For example, when it is rotated one circle, the red area on the shell is located at the light-transmitting hole, and the operator can see a brighter red light than green, which makes the operator immediately understand that the drill rod has tilted significantly and needs to be stopped and adjusted immediately.

[0026] Optionally, the vertical plate is provided with a plurality of through holes, and adjacent through holes are provided at intervals along the length direction of the vertical plate. A fixing bolt is provided on the knob switch, and the fixing bolt passes through the corresponding through holes and is threadedly connected with the knob switch.

[0027] In a second aspect, the present application provides a method for using a cement-soil mixing pile construction monitoring device, which adopts the following technical solution:

[0028] A method for using a cement soil mixing pile construction monitoring device comprises the following steps:

[0029] S1. After the pile foundation is positioned on site, the bracket is fixed beside the pile foundation, and the positioning plate is set adjacent to the drill rod;

[0030] S2, adjusting the initial position of the corresponding positioning assembly relative to the outer wall of the drill pipe;

[0031] S3, adjusting the initial position between the rack and the knob of the knob switch;

[0032] S4, obtaining the brightness of the warning light at the current moment, and determining the rotation angle of the knob corresponding to the brightness of the warning light based on the brightness of the warning light and a first mapping relationship, wherein the first mapping relationship is a correspondence between the rotation angle of the knob and the brightness of the warning light;

[0033] Determine the motor start-up time length corresponding to the rotation angle of the knob based on the rotation angle of the knob and a second mapping relationship, wherein the second mapping relationship is a correspondence between the rotation angle of the knob and the motor start-up time length;

[0034] Based on the start-up time of the motor, a motor control instruction is generated, and the motor control instruction is sent to the control end of the motor, so that the motor is started according to the motor control instruction.

[0035] By adopting the above technical solution,

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] The setting of the warning mechanism is used to issue a warning after the positioning rod moves relative to the positioning plate;

[0038] The angle of rotation of the knob switch can not only control the brightness of the warning light, but also control the start and stop time of the motor;

[0039] Since the distribution range of the three groups of positioning components covers half of the circumference of the drill rod, there is a lack of monitoring equipment on the other side of the drill rod opposite the positioning tube. Therefore, when the drill rod tilts toward the other side of the drill rod opposite the positioning tube, the positioning ball is adsorbed on the outer wall of the drill rod, and the drill rod drives the positioning ball and the positioning rod to move. The positioning rod pulls the rack through the second pull rope, and finally an alarm is issued, ensuring the monitoring range of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0041] Figure 2 This is a schematic diagram behind the hidden drill rod;

[0042] Figure 3 It is a cross-sectional view of the structure of the strip board;

[0043] Figure 4 This is an exploded view of part of the structure of the outer shell.

[0044] Explanation of the accompanying drawings: 1. bracket; 11. positioning plate; 12. vertical plate; 121. slide groove; 13. cable ring; 14. baffle; 15. spring; 2. positioning assembly; 21. positioning rod; 22. positioning ball; 3. warning mechanism; 31. warning assembly; 311. rack; 312. knob switch; 313. warning light; 32. linkage assembly; 321. first pull rope; 322. strip plate; 323. push block; 4. positioning tube; 41. second pull rope; 5. adjustment plate; 51. adjustment bolt; 6. housing; 61. lampshade; 62. light-transmitting hole; 63. motor; 64. gear; 65. gear ring; 66. strip hole; 7. through hole; 8. slideway. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0046] The embodiments of the present application disclose a cement-soil mixing pile construction monitoring device and method.

[0047] refer to Figure 1 and Figure 2 A cement-soil mixing pile construction monitoring device includes a bracket 1. The bracket 1 is assumed to be on the ground next to the mixing pile equipment. A positioning plate 11, a positioning component 2 and an alarm mechanism 3 are arranged on the bracket 1. The positioning component 2 is slidably arranged relative to the positioning plate 11, and the sliding direction is in the direction close to or away from the vertical center line of the positioning plate 11. The positioning component 2 is used to transmit the tilt state of the drill rod to the alarm mechanism 3 to issue an alarm.

[0048] refer to Figure 2 The positioning plate 11 is semi-circular in shape and is placed beside the outer wall of the drill pipe. The vertical center line of the drill pipe coincides with the vertical center line of the positioning plate 11. The positioning assembly 2 includes a positioning rod 21 and a positioning ball 22. The positioning rod 21 horizontally penetrates the positioning plate 11. The positioning assembly 2 is provided with three groups and is distributed at both ends and the middle of the positioning plate 11. The positioning rod 21 passes through the positioning plate 11 and is hinged with the positioning ball 22 at the end close to the drill pipe. The positioning rod 21 is slidably connected to the positioning plate 11.

[0049] refer to Figure 2 , Figure 3 and Figure 4 The warning mechanism 3 includes a warning component 31 and a linkage component 32. The warning component 31 is used to issue a warning, and the linkage component 32 is used to control the warning component 31 to issue a warning after the positioning rod 21 moves relative to the positioning plate 11. The warning component 31 includes a rack 311, a knob switch 312 and a warning light 313. The linkage component 32 includes a first pull rope 321, a strip plate 322 and a push block 323. The number of linkage components 32 is set corresponding to the number of positioning components 2, that is, the positioning components 2 are set with three groups, and the linkage components 32 are also set with three groups.

[0050] refer to Figure 2 and Figure 3 , a vertical plate 12 is arranged on the positioning plate 11, the vertical plate 12 is arranged vertically and the top is fixedly connected to the positioning plate 11, the vertical plate 12 is located directly below the middle of the positioning plate 11, a baffle 14 is fixed to the bottom end of the vertical plate 12, the baffle 14 is arranged horizontally, a slide groove 121 is provided on the vertical plate 12, the slide groove 121 is opened in the vertical direction, the rack 311 is slidably arranged on the slide groove 121, a spring 15 is arranged between the bottom end of the rack 311 and the baffle 14, one end of the spring 15 is fixedly connected to the rack 311, and the other end is fixedly connected to the baffle 14. The knob switch 312 is fixed on the vertical plate 12, a plurality of through holes 7 are provided on the vertical plate 12, and adjacent through holes 7 are arranged at intervals, and a fixing bolt is provided on the book bar, and the fixing bolt passes through the corresponding through hole 7 and is threadedly connected to the knob switch 312. The knob switch 312 is located above the rack 311. The knob of the knob switch 312 has teeth, and the rack 311 is meshed with the knob of the knob switch 312 when it is close to the knob switch 312, thereby driving the knob to rotate.

[0051] refer to Figure 2 and Figure 3, a plurality of cable ties 13 are fixed on the positioning plate 11 and the vertical plate 12. The strip plate 322 is arranged horizontally, one end of the strip plate 322 is fixedly connected to the circumferential outer wall of the positioning plate 11, and the other end is arranged in a cantilevered shape. The strip plate 322 is provided with a slideway 8 along its length direction, and the push block 323 is slidably arranged on the strip plate 322 and slides along the length direction of the slideway 8. The end of the positioning rod 21 away from the positioning ball 22 abuts against the push block 323, one end of the first pull rope 321 is fixedly connected to the push block 323, and the other end is laid along the slideway 8 toward the positioning plate 11 and then passes through the strip plate 322 downward and sequentially passes through a plurality of cable ties 13, and then is fixedly connected to the top of the rack 311.

[0052] refer to Figure 2 and Figure 3 The positioning rod 21 located in the middle of the positioning plate 11 is ringed with a positioning tube 4 on the outside. The positioning tube 4 passes through the positioning plate 11 and is slidably arranged on the positioning plate 11. The sliding direction of the positioning tube 4 is the same as the length direction of the ringed positioning rod 21. The diameter of the positioning ball 22 is larger than the inner diameter of the positioning tube 4. The end of the positioning tube 4 away from the positioning ball 22 abuts against the corresponding push block 323. A second pull rope 41 is fixed on the positioning rod 21 located in the middle of the positioning plate 11. One end of the second pull rope 41 passes downward through the positioning tube 4 and the strip plate 322 and is fixedly connected to the top of the rack 311. The positioning ball 22 located in the middle of the positioning plate 11 is magnetic and is magnetically adsorbed to the drill rod. The drill rod is made of a magnetically adsorbable material.

[0053] Since the distribution range of the three groups of positioning components 2 covers half of the circumference of the drill pipe, there is still a lack of monitoring equipment on the other side of the drill pipe opposite to the positioning tube 4. Therefore, when the drill pipe is tilted toward the other side of the drill pipe opposite to the positioning tube 4, the corresponding positioning ball 22 is magnetically adsorbed on the outer wall of the drill pipe, and the drill pipe drives the corresponding positioning ball 22 and the positioning rod 21 to move. The positioning rod 21 pulls the rack 311 through the second pull rope 41, and finally a warning is realized, ensuring the monitoring range of the drill pipe.

[0054] refer to Figure 3 An adjusting plate 5 is fixed on the outer wall of the positioning tube 4 located in the middle of the positioning plate 11 and on the outer wall of the positioning rod 21 located at both ends of the positioning plate 11. An adjusting bolt 51 is threadedly connected to the adjusting plate 5, and the end of the adjusting bolt 51 abuts against the circumferential outer wall of the positioning plate 11.

[0055] refer to Figure 2 and Figure 4The bracket 1 is provided with a housing 6, a lampshade 61 and a motor 63. The warning light 313 is located in the lampshade 61 and is electrically connected to the knob switch 312. The lampshade 61 is fixed on the bracket 1. The housing 6 is rotatably arranged on the lampshade 61. The rotation axis of the housing 6 is its own vertical center line. The housing 6 rotates relative to the lampshade 61. A light-transmitting hole 62 is provided on the lampshade 61. The lampshade 61 is made of opaque material. The housing 6 is also provided with a strip hole 66. The strip hole 66 and the light-transmitting hole 62 are of the same size. The rest of the housing 6 is a housing 6 made of a plurality of colors and a light-transmitting material on the outside of the housing 6. When the knob of the knob switch 312 is rotated to different degrees, the light-transmitting hole 62 faces different colors of the housing 6. A gear 64 is fixed to the output end of the motor 63. A gear ring 65 is fixed to the outer wall of the housing 6 in a ring sleeve. The gear 64 and the gear ring 65 are meshed.

[0056] refer to Figure 3 and Figure 4 , the knob of the knob switch 312 is hereinafter referred to as the knob. The motor 63 is electrically connected to the knob switch 312, and a brightness sensor is provided on the motor 63, and the brightness sensor is used to obtain the brightness of the warning light 313. The brightness sensor obtains the brightness of the warning light 313 at the current moment, and determines the rotation angle of the knob corresponding to the brightness of the warning light 313 based on the brightness of the warning light 313 and the first mapping relationship, wherein the first mapping relationship is the correspondence between the rotation angle of the knob and the brightness of the warning light 313; determines the start-up duration of the motor 63 corresponding to the rotation angle of the knob based on the rotation angle of the knob and the second mapping relationship, wherein the second mapping relationship is the correspondence between the rotation angle of the knob and the start-up duration of the motor 63; generates a control instruction of the motor 63 based on the start-up duration of the motor 63, and sends the control instruction of the motor 63 to the control end of the motor 63, so that the motor 63 starts according to the control instruction of the motor 63.

[0057] Initial state: define the distance between the rack 311 and the knob, the light-transmitting hole 62 and the bar hole 66 are in a coincident state, the drill rod is started, if the drill rod tilts, the rack 311 moves toward the knob until the rack 311 meshes with the knob, this time period is the allowable tilt error of the drill rod, and the operator can see the original light color of the warning light 313; the drill rod exceeds the allowable tilt error, the rack 311 drives the knob to rotate, the light brightness of the warning light 313 increases, the warning light 313 illuminates the green area of ​​the housing 6 through the light-transmitting hole 62, and the operator sees the green light at this time, and so on, and the subsequent yellow and red. When the operator sees the red light, it means that the drill rod has tilted significantly and needs to stop working immediately. The rotation amplitude of the knob of the knob switch 312 itself is used to control the brightness of the warning light 313, and the control of the brightness is a prior art.

[0058] The implementation principle of a cement-soil mixing pile construction monitoring device in an embodiment of the present application is as follows: the bracket 1 is fixed horizontally beside the site to be constructed, the positioning plate 11 is placed on the outer wall of the drill rod, the distance between the positioning ball 22 and the outer wall of the drill rod is adjusted or the positioning ball 22 is made to abut against the outer wall of the drill rod; when the drill rod is tilted during use, the drill rod pushes the positioning ball 22 and the positioning rod 21 to move, at which time the alarm mechanism 3 issues a warning to remind the operator to stop construction immediately and readjust the verticality of the drill rod before continuing construction.

[0059] The embodiment of the present application also discloses a method for applying a cement soil mixing pile construction monitoring device.

[0060] The following steps are involved:

[0061] S1. After the pile foundation is positioned on site, the bracket 1 is fixed beside the pile foundation, and the positioning plate 11 is set adjacent to the drill rod;

[0062] S2, adjusting the initial position of the corresponding positioning component 2 relative to the outer wall of the drill pipe;

[0063] S3, adjusting the initial position between the rack 311 and the knob of the knob switch 312;

[0064] S4, obtaining the brightness of the warning light 313 at the current moment, and determining the rotation angle of the knob corresponding to the brightness of the warning light 313 based on the brightness of the warning light 313 and a first mapping relationship, wherein the first mapping relationship is a correspondence between the rotation angle of the knob and the brightness of the warning light 313;

[0065] Determine the start-up time of the motor 63 corresponding to the rotation angle of the knob based on the rotation angle of the knob and the second mapping relationship, wherein the second mapping relationship is the correspondence between the rotation angle of the knob and the start-up time of the motor 63;

[0066] Based on the start-up time of the motor 63 , a control instruction of the motor 63 is generated, and the control instruction of the motor 63 is sent to the control end of the motor 63 , so that the motor 63 is started according to the control instruction of the motor 63 .

[0067] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cement-soil mixing pile construction monitoring device, comprising a bracket (1), characterized in that: Also includes: A positioning plate (11) fixed on the bracket (1); A positioning assembly (2) is slidably disposed on the positioning plate (11) and moves horizontally in a direction approaching or moving away from a vertical center line of the positioning plate (11), wherein the positioning assembly (2) comprises a positioning rod (21) and a positioning ball (22), wherein the positioning rod (21) horizontally penetrates the positioning plate (11), and the positioning ball (22) is spherically hinged to one end of the positioning rod (21) for contacting with an outer wall of a drill pipe; The warning mechanism (3) is used to issue a warning after the positioning rod (21) moves relative to the positioning plate (11); The warning mechanism (3) comprises a warning component (31) and a linkage component (32); the warning component (31) comprises a rack (311), a knob switch (312) and a warning light (313); the knob switch (312) is electrically connected to the warning light (313); the rotation amplitude of the knob of the knob switch (312) is used to control the brightness of the warning light (313); the rack (311) moves in a direction approaching or moving away from the knob of the knob switch (312); the rack (311) is used to mesh with the knob of the knob switch (312); the linkage component (32) comprises a first pull rope (321), a strip plate (322) and a push block (323); the strip plate (322) is horizontally arranged and fixed on On the circumferential outer wall of the positioning plate (11), a push block (323) is slidably arranged on the strip plate (322) and slides in a direction close to or away from the vertical center line of the positioning plate (11). The first pull rope (321) is used to cause the rack (311) to move synchronously when the positioning rod (21) moves relative to the positioning plate (11). One end of the first pull rope (321) is fixedly connected to the push block (323), and the other end passes through the strip plate (322) and is fixedly connected to the top of the rack (311). The end of the positioning rod (21) away from the positioning ball (22) abuts against the push block (323); when the positioning rod (21) moves in a direction away from the vertical center line of the positioning plate (11), the rack (311) moves in a direction close to the knob switch (312); The positioning plate (11) is provided with a vertical plate (12) and a plurality of cable ties (13) for limiting the transmission direction of the first pull rope (321); the vertical plate (12) is vertically arranged and fixed below the positioning plate (11); the cable ties (13) are distributed on the positioning plate (11) and the vertical plate (12); the rack (311) is slidably arranged on the vertical plate (12); the knob switch (312) is fixed on the vertical plate (12) and is located above the rack (311); A baffle (14) is fixed to the bottom of the vertical plate (12), and a spring (15) is fixed between the baffle (14) and the bottom end of the rack (311); The positioning plate (11) is semi-annular, and the positioning components (2) are provided in three groups and are respectively distributed at both ends and the middle of the positioning plate (11); the linkage components (32) are provided in a number corresponding to the number of the positioning components (2); The positioning rod (21) located in the middle of the positioning plate (11) is externally sleeved with a positioning tube (4), the positioning tube (4) penetrates the positioning plate (11) and is slidably arranged on the positioning plate (11), the sliding direction of the positioning tube (4) is the same as the length direction of the sleeved positioning rod (21), the diameter of the positioning ball (22) is larger than the inner diameter of the positioning tube (4), one end of the positioning tube (4) abuts against the push block (323), a second pull rope (41) is fixed to the positioning rod (21) located in the middle of the positioning plate (11), the second pull rope (41) penetrates the positioning tube (4) and the strip plate (322) and is fixedly connected to the top of the rack (311); the positioning ball (22) located in the middle of the positioning plate (11) has magnetism for magnetic adsorption with the drill rod.

2. A cement-soil mixing pile construction monitoring device according to claim 1, characterized in that: An adjustment plate (5) is fixed on the outer wall of the positioning tube (4) located in the middle of the positioning plate (11) and on the outer walls of the positioning rods (21) located at both ends of the positioning plate (11). An adjustment bolt (51) is threadedly connected to the adjustment plate (5), and the end of the adjustment bolt (51) abuts against the circumferential outer wall of the positioning plate (11).

3. A cement-soil mixing pile construction monitoring device according to claim 1, characterized in that: A lampshade (61) made of an opaque material is fixed on the positioning plate (11), a light-transmitting hole (62) is provided on the lampshade (61), a warning light (313) is located inside the lampshade (61), a housing (6) is rotatably provided on the lampshade (61), the housing (6) is sleeved outside the lampshade (61), the housing (6) rotates relative to the lampshade (61), the housing (6) is made of a light-transmitting material, and the housing (6) itself has a plurality of colors, and when the knob of the knob switch (312) is rotated to different degrees, the light-transmitting hole (62) faces different colors of the housing (6).

4. A cement-soil mixing pile construction monitoring device according to claim 2, characterized in that: The vertical plate (12) is provided with a plurality of through holes (7), and adjacent through holes (7) are provided at intervals along the length direction of the vertical plate (12). A fixing bolt is provided on the rotary switch (312), and the fixing bolt passes through the corresponding through hole (7) and is threadedly connected to the rotary switch (312).

5. A method for using a cement-soil mixing pile construction monitoring device as claimed in claim 1, characterized in that: The following steps are involved: S1. After the pile foundation is positioned on site, the bracket (1) is fixed beside the pile foundation, and the positioning plate (11) is arranged adjacent to the drill rod; S2, adjusting the initial position of the corresponding positioning component (2) relative to the outer wall of the drill pipe; S3, adjusting the initial position between the rack (311) and the knob of the knob switch (312); S4, obtaining the brightness of the warning light (313) at the current moment, and determining the rotation angle of the knob corresponding to the brightness of the warning light (313) based on the brightness of the warning light (313) and a first mapping relationship, wherein the first mapping relationship is a corresponding relationship between the rotation angle of the knob and the brightness of the warning light (313); Determining the start-up time of the motor (63) corresponding to the rotation angle of the knob based on the rotation angle of the knob and a second mapping relationship, wherein the second mapping relationship is a corresponding relationship between the rotation angle of the knob and the start-up time of the motor (63); Based on the start-up time of the motor (63), a motor (63) control instruction is generated, and the motor (63) control instruction is sent to a control end of the motor (63), so that the motor (63) is started according to the motor (63) control instruction.

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