A composite foundation settlement reinforcement structure with inherent cement-soil mixing piles in deep soft soil layers

Abstract

The present application relates to a settlement reinforcement structure for a composite foundation of cement-soil mixing piles in a deep soft soil layer, which belongs to the field of construction machinery, and includes a base, an installation box fixedly connected to the top of the base, an adjustment box arranged outside the installation box, a drilling mechanism arranged at the bottom of the adjustment box, and a controller fixedly installed on the front of the base, wherein the interior of the base is provided with a rotating mechanism extending to the outside thereof for rotating and adjusting the installation box, and the interior of the adjustment box is provided with a moving mechanism extending to the outside thereof for moving the drilling mechanism left and right. The settlement reinforcement structure for a composite foundation of cement-soil mixing piles in a deep soft soil layer starts the reduction motor through the controller to drive the transmission gear to rotate, and the installation plate rotates to drive the installation box and the drilling mechanism to rotate, thereby adjusting the angle of the drilling mechanism, so that the position of the drilling mechanism is aligned with the drilling point for accurate drilling construction, achieving the advantage of facilitating the adjustment of the position of the drilling rig.

Description

Technical Field

[0001] The present application relates to the technical field of construction machinery, and in particular to a settlement reinforcement structure for a composite foundation of inherent cement-soil mixing piles in a deep soft soil layer. Background Art

[0002] Cement-soil mixing piles use cement-mixing pile machines to mix cement paste or cement powder with soft soil in situ, and form columnar cement-soil bodies after mixing. Cement and soft soil will produce a series of physical-chemical reactions, which will harden and modify the soft soil. The strength of the modified soft soil is much greater than the natural strength, and its compressibility and water permeability are greatly reduced compared to natural soft soil. Since the cement-soil mixing piles themselves are formed by various physical and chemical reactions between cement and soil, the compression deformation of the pile body is large, and the strength is only between the soil and cement, which often does not meet the strength required by the design. At the same time, the shear strength near the surface is low, so it cannot meet the needs of the project.

[0003] In the construction of inherent soft soil composite foundation, the inherent cement soil mixing pile composite foundation settlement reinforcement structure of deep soft soil layer is needed. The Chinese utility model patent with announcement number CN207904916U discloses a construction device of cast-in-place concrete core cement soil mixing pile, which belongs to the field of soft soil foundation reinforcement. The construction device refers to a multifunctional cement mixing pile machine composed of a fuselage, a suspension rope, a power head and a drill rod, and the drill rod is set as an upper drill rod and a lower drill rod connected to each other, and the corrugated pipe and the drill bit are detachably installed in the lower drill rod through a fastening assembly. The utility model uses the vibration rise of the drill rod to synchronously retain the corrugated pipe and the drill bit in the center. After the cement soil is initially set, the corrugated pipe is cast in place with a concrete core to form a rigid core pile.

[0004] In the process of realizing the present application, there are at least the following problems in the technology: during the use of the construction device of the cast-in-place concrete core cement-soil mixing pile, it is difficult to adjust the position of the drill rod after the cement-soil mixing pile machine is fixed, and the cement-soil mixing pile machine is large in size and inconvenient to move, which seriously reduces the practicality of the cement-soil mixing pile machine. Therefore, a composite foundation settlement reinforcement structure of inherent cement-soil mixing piles in deep soft soil layers is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a composite foundation settlement reinforcement structure of cement-soil mixing piles inherent in deep soft soil layers, which has the advantages of easy adjustment of the position of the drilling rig, etc., and solves the problem that the position of the drilling rig is difficult to adjust after the cement-soil mixing pile machine is fixed during use of the existing construction device of cast-in-place concrete core cement-soil mixing piles, and the cement-soil mixing pile machine is large in size and inconvenient to move, which seriously reduces the practicability of the cement-soil mixing pile machine.

[0006] In summary, the present application provides the following technical solutions: a deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure, comprising a base, a mounting box fixedly connected to the top of the base, an adjustment box arranged outside the mounting box, a drilling mechanism arranged at the bottom of the adjustment box, and a controller fixedly installed on the front of the base, wherein the base is provided with a rotating mechanism extending to the outside thereof for rotating and adjusting the mounting box, and the adjustment box is provided with a moving mechanism extending to the outside thereof for moving the drilling mechanism left and right;

[0007] The rotating mechanism includes a reduction motor fixedly installed inside the base, a transmission gear fixedly connected to the output shaft of the reduction motor, a driven gear meshingly connected to the outside of the transmission gear, a rotating shaft fixedly connected to the inside of the driven gear, and a mounting plate fixedly connected to an end of the rotating shaft away from the base;

[0008] The moving mechanism includes a hydraulic cylinder fixedly installed inside the regulating box, a connecting seat fixedly connected to the output end of the hydraulic cylinder, a connecting block fixedly connected to the bottom of the connecting seat and extending to the outside of the regulating box, and a fixing plate fixedly connected to the bottom of the connecting block.

[0009] The present application adopts the above-mentioned technical scheme, and starts the reduction motor through the controller to drive the transmission gear to rotate. The rotation and meshing of the transmission gear drive the driven gear, the rotating shaft and the mounting plate to rotate. The rotation of the mounting plate drives the mounting box and the drilling mechanism to rotate, thereby adjusting the angle of the drilling mechanism. Then, the hydraulic cylinder is started by the controller to extend and retract to drive the connecting seat, the connecting block and the fixed plate to move left and right, so that the position of the drilling mechanism is aligned with the drilling point for accurate drilling construction, thereby achieving the advantage of easy adjustment of the position of the drilling rig; the servo motor is started by the controller to drive the screw to rotate, and the rotation of the screw drives the threaded block, the fixed block and the drilling mechanism to move up and down, thereby facilitating the cement soil mixing pile body to pass through the soft soil layer and enter the underlying hard soil layer. By setting the limit block and the limit groove, the stability of the up and down movement of the drilling mechanism is improved, thereby achieving the advantage of strong practicality.

[0010] Furthermore, the rotating shaft is rotatably connected to the inside of the base, and the mounting box is fixedly connected to the top of the mounting plate.

[0011] The beneficial effect of adopting the above further solution is: the reduction motor is started by the controller to drive the transmission gear to rotate, and the transmission gear rotates and engages to drive the driven gear, the rotating shaft and the mounting plate to rotate.

[0012] Furthermore, a limiting rod extending into the interior of the base is fixedly connected to the bottom of the mounting plate, an annular groove matching the limiting rod is provided inside the base, and the limiting rod and the annular groove are slidably connected.

[0013] The beneficial effect of adopting the above further solution is that by providing the limit rod and the annular slide groove, the stability of the installation box and the drilling mechanism during rotation is improved.

[0014] Furthermore, a sliding opening adapted to the connecting block is provided inside the regulating box, and the drilling mechanism is fixedly mounted on the bottom of the fixing plate.

[0015] The beneficial effect of adopting the above further scheme is: the hydraulic cylinder is activated by the controller to extend and retract to drive the connecting seat, connecting block and fixed plate to move left and right, so that the position of the drilling mechanism is aligned with the drilling point for accurate drilling construction, achieving the advantage of facilitating the adjustment of the position of the drilling rig.

[0016] Furthermore, a slider extending into the interior of the adjustment box is fixedly connected to the top of the connection seat, a slide groove matching the slider is provided inside the adjustment box, and the slider and the slide groove are slidably connected.

[0017] The beneficial effect of adopting the above further solution is that the stability of the left and right movement of the drilling mechanism is improved by providing the slider and the slide groove.

[0018] Furthermore, a lifting mechanism extending to the outside of the installation box is provided inside the installation box, and the lifting mechanism includes a servo motor fixedly installed on the top of the installation box, a screw fixedly connected to the output shaft of the servo motor, a threaded block threadedly connected to the outside of the screw, and a fixed block fixedly connected to the right side of the threaded block and extending to the outside of the installation box.

[0019] The beneficial effect of adopting the above further solution is: the servo motor is started by the controller to drive the screw to rotate, and the rotation of the screw drives the threaded block, the fixed block and the drilling mechanism to move up and down.

[0020] Furthermore, the lead screw is rotatably connected to the interior of the installation box, a movable opening adapted to the fixed block is provided inside the installation box, and the adjustment box is fixedly connected to a side of the fixed block away from the threaded block.

[0021] The beneficial effect of adopting the above further solution is that the drilling mechanism is driven to move up and down by the fixed block, so that the cement soil mixing pile body can pass through the soft soil layer and enter the underlying hard soil layer.

[0022] Furthermore, a limit block extending into the interior of the installation box is fixedly connected to the left side of the threaded block, a limit groove matched with the limit block is provided inside the installation box, and the limit block and the limit groove are slidably connected.

[0023] The beneficial effect of adopting the above further solution is that the stability of the up and down movement of the drilling mechanism is improved by setting the limit block and the limit groove.

[0024] Compared with the prior art, the present application provides a deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure, which has the following beneficial effects:

[0025] 1. The inherent cement-soil mixing pile composite foundation settlement reinforcement structure of the deep soft soil layer starts the reduction motor through the controller to drive the transmission gear to rotate, and the rotation and meshing of the transmission gear drives the driven gear, the rotating shaft and the mounting plate to rotate, and the rotation of the mounting plate drives the mounting box and the drilling mechanism to rotate, thereby adjusting the angle of the drilling mechanism, and then starts the hydraulic cylinder extension through the controller to drive the connecting seat, the connecting block and the fixed plate to move left and right, so that the position of the drilling mechanism is aligned with the drilling point for accurate drilling construction, which achieves the advantage of facilitating the adjustment of the position of the drilling rig.

[0026] 2. The inherent cement-soil mixing pile composite foundation settlement reinforcement structure of the deep soft soil layer starts the servo motor through the controller to drive the screw to rotate. The rotation of the screw drives the threaded block, the fixed block and the drilling mechanism to move up and down, which is convenient for the cement-soil mixing pile body to pass through the soft soil layer and enter the underlying hard soil layer. By setting the limit block and the limit groove, the stability of the up and down movement of the drilling mechanism is improved, achieving the advantage of strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of the structure of this application;

[0028] Figure 2 This application Figure 1 A is a schematic diagram of the enlarged structure shown;

[0029] Figure 3 It is the front view of the structure of this application;

[0030] Figure 4 It is a cross-sectional structural stereogram of the mobile mechanism of the present application.

[0031] Description of reference numerals:

[0032] 1. Base; 2. Mounting box; 3. Adjustment box; 4. Drilling mechanism; 41. Driving motor; 42. Drilling rig; 5. Rotating mechanism; 51. Reduction motor; 52. Transmission gear; 53. Driven gear; 54. Rotating shaft; 55. Mounting plate; 56. Limit rod; 6. Moving mechanism; 61. Hydraulic cylinder; 62. Connecting seat; 63. Connecting block; 64. Fixed plate; 65. Slider; 7. Lifting mechanism; 71. Servo motor; 72. Lead screw; 73. Threaded block; 74. Fixed block; 8. Controller. DETAILED DESCRIPTION

[0033] See also Figure 1-4In this embodiment, a deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure includes a base 1, an installation box 2 fixedly connected to the top of the base 1, an adjustment box 3 arranged outside the installation box 2, a drilling mechanism 4 arranged at the bottom of the adjustment box 3 and a controller 8 fixedly installed on the front of the base 1, the base 1 is provided with a rotating mechanism 5 extending to the outside thereof for rotating and adjusting the installation box 2, the adjusting box 3 is provided with a moving mechanism 6 extending to the outside thereof for moving the drilling mechanism 4 left and right, the rotating mechanism 5 includes a reduction motor 51 fixedly installed inside the base 1, a transmission gear 52 fixedly connected to the output shaft of the reduction motor 51, a driven gear 53 meshingly connected to the outside of the transmission gear 52, a rotating shaft 54 ​​fixedly connected to the inside of the driven gear 53 and a mounting plate 55 fixedly connected to the end of the rotating shaft 54 ​​away from the base 1.

[0034] The reduction motor 51 is started by the controller 8 to drive the transmission gear 52 to rotate. The transmission gear 52 rotates and engages to drive the driven gear 53, the rotating shaft 54 ​​and the mounting plate 55 to rotate. The mounting plate 55 rotates to drive the mounting box 2 and the drilling mechanism 4 to rotate, thereby adjusting the angle of the drilling mechanism 4.

[0035] The rotating shaft 54 ​​is rotatably connected to the inside of the base 1 , and the mounting box 2 is fixedly connected to the top of the mounting plate 55 .

[0036] Specifically, a limit rod 56 extending to the inside of the base 11 is fixedly connected to the bottom of the mounting plate 55, and an annular groove matching the limit rod 56 is provided inside the base 11, and the limit rod 56 and the annular groove are slidably connected. By providing the limit rod 56 and the annular groove, the stability of the mounting box 2 and the drilling mechanism 4 during rotation is improved.

[0037] It should be noted that the drilling mechanism 4 includes a driving motor 41 fixedly mounted on the bottom of the fixing plate 64 , and a drilling rig 42 is fixedly connected to the output shaft of the driving motor 41 .

[0038] See also Figure 1-Figure 4 In this embodiment, the moving mechanism 6 includes a hydraulic cylinder 61 fixedly installed inside the adjustment box 3, a connecting seat 62 fixedly connected to the output end of the hydraulic cylinder 61, a connecting block 63 fixedly connected to the bottom of the connecting seat 62 and extending to the outside of the adjustment box 3, and a fixing plate 64 fixedly connected to the bottom of the connecting block 63. The controller 8 starts the hydraulic cylinder 62 to extend and retract, driving the connecting seat 62, the connecting block 63 and the fixing plate 64 to move left and right, so that the position of the drilling mechanism 4 is aligned with the drilling point for accurate drilling construction, achieving the advantage of facilitating the adjustment of the position of the drilling rig.

[0039] The inside of the regulating box 3 is provided with a sliding opening adapted to the connecting block 63 , and the drilling mechanism 4 is fixedly mounted on the bottom of the fixing plate 64 .

[0040] It should be noted that a slider 65 extending to the inside of the adjustment box 3 is fixedly connected to the top of the connection seat 62, and a slide groove matching the slider 65 is provided inside the adjustment box 3, and the slider 65 and the slide groove are slidably connected. By providing the slider 65 and the slide groove, the stability of the left and right movement of the drilling mechanism 4 is improved.

[0041] See also Figure 1 In this embodiment, the installation box 2 is provided with a lifting mechanism 7 extending to the outside thereof, and the lifting mechanism 7 includes a servo motor 71 fixedly installed on the top of the installation box 2, a lead screw 72 fixedly connected to the output shaft of the servo motor 71, a threaded block 73 threadedly connected to the outside of the lead screw 72, and a fixed block 74 fixedly connected to the right side of the threaded block 73 and extending to the outside of the installation box 2. The servo motor 71 is started by the controller 8 to drive the lead screw 72 to rotate, and the rotation of the lead screw 72 drives the threaded block 73, the fixed block 74 and the drilling mechanism 4 to move up and down, so that the cement soil mixing pile body passes through the soft soil layer and enters the underlying hard soil layer.

[0042] The lead screw 72 is rotatably connected to the interior of the installation box 2 , a movable opening adapted to the fixing block 74 is provided inside the installation box 2 , and the adjustment box 3 is fixedly connected to a side of the fixing block 74 away from the threaded block 73 .

[0043] Specifically, the lead screw 72 is rotatably connected to the interior of the installation box 2 , a movable opening adapted to the fixed block 74 is provided inside the installation box 2 , and the adjustment box 3 is fixedly connected to a side of the fixed block 74 away from the threaded block 73 .

[0044] The working principle of the above embodiment is:

[0045] When in use, the reduction motor 51 is started by the controller 8 to drive the transmission gear 52 to rotate. The transmission gear 52 rotates and engages to drive the driven gear 53, the rotating shaft 54 ​​and the mounting plate 55 to rotate. The mounting plate 55 rotates to drive the mounting box 2 and the drilling mechanism 4 to rotate, thereby adjusting the angle of the drilling mechanism 4. Then, the hydraulic cylinder 62 is started by the controller 8 to extend and retract to drive the connecting seat 62, the connecting block 63 and the fixed plate 64 to move left and right, so that the position of the drilling mechanism 4 is aligned with the drilling point for accurate drilling construction. The servo motor 71 is started by the controller 8 to drive the screw 72 to rotate. The screw 72 rotates to drive the threaded block 73, the fixed block 74 and the drilling mechanism 4 to move up and down, so that the cement soil mixing pile body passes through the soft soil layer and enters the underlying hard soil layer.

Claims

1. A settlement reinforcement structure for inherent cement-soil mixing pile composite foundation in deep soft soil layer, characterized by: The invention comprises a base (1), a mounting box (2) fixedly connected to the top of the base (1), an adjustment box (3) arranged outside the mounting box (2), a drilling mechanism (4) arranged at the bottom of the adjustment box (3), and a controller (8) fixedly installed on the front of the base (1); the base (1) is provided with a rotating mechanism (5) extending to the outside thereof for rotating and adjusting the mounting box (2); the adjustment box (3) is provided with a moving mechanism (6) extending to the outside thereof for moving the drilling mechanism (4) leftward and rightward; The rotating mechanism (5) comprises a reduction motor (51) fixedly mounted inside the base (1), a transmission gear (52) fixedly connected to the output shaft of the reduction motor (51), a driven gear (53) meshingly connected to the outside of the transmission gear (52), a rotating shaft (54) fixedly connected to the inside of the driven gear (53), and a mounting plate (55) fixedly connected to an end of the rotating shaft (54) away from the base (1); The moving mechanism (6) comprises a hydraulic cylinder (61) fixedly mounted inside the regulating box (3), a connecting seat (62) fixedly connected to the output end of the hydraulic cylinder (61), a connecting block (63) fixedly connected to the bottom of the connecting seat (62) and extending to the outside of the regulating box (3), and a fixing plate (64) fixedly connected to the bottom of the connecting block (63).

2. The deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure according to claim 1 is characterized by: The rotating shaft (54) is rotatably connected to the inside of the base (1), and the mounting box (2) is fixedly connected to the top of the mounting plate (55).

3. The deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure according to claim 1 is characterized by: A limiting rod (56) extending into the interior of the base (1) is fixedly connected to the bottom of the mounting plate (55); an annular sliding groove matching the limiting rod (56) is provided inside the base (1); the limiting rod (56) and the annular sliding groove are slidably connected.

4. The deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure according to claim 1, characterized in that: The regulating box (3) is provided with a sliding opening adapted to fit the connecting block (63) inside, and the drilling mechanism (4) is fixedly mounted on the bottom of the fixing plate (64).

5. The deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure according to claim 1, characterized in that: A sliding block (65) extending into the interior of the regulating box (3) is fixedly connected to the top of the connecting seat (62); a sliding groove matching the sliding block (65) is provided inside the regulating box (3); and the sliding block (65) is slidably connected to the sliding groove.

6. The deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure according to claim 1, characterized in that: The installation box (2) is provided with a lifting mechanism (7) extending to the outside thereof, the lifting mechanism (7) comprising a servo motor (71) fixedly mounted on the top of the installation box (2), a lead screw (72) fixedly connected to the output shaft of the servo motor (71), a threaded block (73) threadedly connected to the outside of the lead screw (72), and a fixed block (74) fixedly connected to the right side of the threaded block (73) and extending to the outside of the installation box (2).

7. The deep soft soil layer inherent cement soil mixing pile composite foundation settlement reinforcement structure according to claim 6, characterized in that: The lead screw (72) is rotatably connected to the interior of the installation box (2); a movable opening adapted to the fixed block (74) is provided in the interior of the installation box (2); and the adjustment box (3) is fixedly connected to a side of the fixed block (74) away from the threaded block (73).

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