Construction method for friction type insertion of drain board of soft soil foundation

Abstract

According to the construction method for friction type insertion of the drainage plate of the soft soil foundation, the bottom friction type drive insertion plate is adopted, and the overall weight is reduced. The device comprises an excavator, an inserting plate frame and at least one friction inserting plate assembly, the inserting plate frame is rotationally connected with the excavator, the friction inserting plate assemblies are arranged on the lower portion of the inserting plate frame, and the inserting plate frame is slidably connected with inserting plate pipes in friction fit with the friction inserting plate assemblies. A construction mode of inserting a friction type drainage plate is adopted, a hydraulic driving device enables a friction wheel to press an insertion plate pipe, the insertion plate pipe is pressed into a soil layer under the action of friction force, and a friction insertion plate assembly for outputting kinetic energy does not need to be arranged on the upper portion of an insertion plate frame, so that the steel consumption of the upper portion of the insertion plate frame is reduced, and the weight of the insertion plate frame is reduced; and the safety is improved while the cost is reduced, so that the light excavator can complete the transfer operation of the plugboard frame, and the use flexibility is high. The method is applied to the technical field of foundation construction methods.

Description

Technical Field

[0001] This invention relates to the technical field of foundation construction methods, and in particular to a construction method for friction-type insertion of drainage boards in soft soil foundations. Background Technology

[0002] In existing technologies, soft soil foundation reinforcement is usually carried out by methods such as vacuum preloading. When dealing with soft soil foundations, it is necessary to insert plastic drainage boards into the soft soil foundation to complete the pile layout.

[0003] Currently, traditional drainage board insertion equipment typically uses chains or wire ropes to insert plastic drainage boards into soft soil to complete the pile laying. The chains or wire ropes forcefully press the insertion boards into the soft soil foundation. The chains or wire ropes are large in diameter and long in length, making installation and maintenance very difficult. During operation, there are also problems such as chain breakage, chain detachment from the drive sprocket, and wire rope jumping out of the groove. In addition, the device used to provide the downward insertion power is located at the top of the frame, and the frame needs to have high bending strength. Therefore, the overall weight of the frame is large. Construction on the soft foundation surface requires the use of high-power machinery to install the plate (31), resulting in high operating costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a construction method for friction insertion of drainage boards in soft soil foundations, which adopts a bottom friction drive insert plate to reduce the overall weight.

[0005] The technical solution adopted in this invention is as follows: This invention includes an excavator, a insert plate frame, and at least one set of friction insert plate assemblies. The insert plate frame is rotatably connected to the excavator, the friction insert plate assembly is disposed at the lower part of the insert plate frame, and the insert plate frame is slidably connected with an insert plate tube that frictionally engages with the friction insert plate assembly.

[0006] The construction method includes:

[0007] S1. Clear the soil piles in the site and fill them into the depressions. Then spread the excess soil layer evenly on the soft soil foundation currently under construction and lay a sand cushion layer on the surface of the soft soil foundation.

[0008] S2. Locate and mark the positions where drainage boards will be installed;

[0009] S3. The drainage plate is installed inside the insert plate frame, which is connected to the excavator. The friction insert plate assembly is then adjusted.

[0010] S4. The excavator moves the insert frame to the marked position;

[0011] S5. Install a guide shoe at the insertion end of the drainage board;

[0012] S6. The friction plate assembly clamps the insertion plate tube and uses friction to press the insertion plate tube down into the soil layer. After reaching the designated position, the drainage board is cut off, and the friction plate assembly lifts the insertion plate tube back to its original position.

[0013] S7. Repeat steps S4-S6 to complete the insertion of the drainage board at the preset marked position.

[0014] Furthermore, in step S2, the construction site is measured and laid out, with a spacing of 0.8-1.2m to meet the requirements of a square layout. The points are laid out and marked with marker paint. The deviation of the points should be kept within 5cm.

[0015] Furthermore, the friction insert assembly includes a mounting plate fixedly connected to the insert frame, a guide wheel pivotally connected to the mounting plate for guiding the insert tube, an insert drive device fixedly connected to the mounting plate, and two sets of friction wheels pivotally connected to the mounting plate. A hydraulic drive device is formed on one side of the mounting plate. One end of the hydraulic drive device is connected to one set of the friction wheels, and the other end of the hydraulic drive device is connected to the other friction wheel. The insert drive device is in transmission cooperation with the friction wheels through a transmission component.

[0016] Furthermore, the mounting plate is slidably connected to a sliding frame for pivoting the friction wheel, and one end of the sliding frame is fixedly connected to the corresponding end of the hydraulic drive device.

[0017] Furthermore, the outer wall of the friction wheel is formed with friction grooves.

[0018] Furthermore, the lower end of the mounting plate is formed with a support plate for supporting the ground, and the middle of the support plate is provided with a slot for the insertion tube to pass through.

[0019] Furthermore, in step S6, the hydraulic drive device retracts, causing the two friction wheels to move closer to each other towards the center and press the insertion plate tube together. The insertion tube drive device drives the friction to rotate, and the friction wheels provide a downward insertion force to the insertion plate tube through friction. The drainage plate enters the soil layer along with the insertion plate tube. When the insertion plate tube is lifted, the insertion tube drive device rotates in the opposite direction, causing the insertion plate tube to move upward.

[0020] Furthermore, the insert tube is rhomboid in shape.

[0021] The beneficial effects of this invention are as follows: By adopting the construction method of friction-type drainage plate insertion, the friction wheel is pressed against the insertion plate tube by a hydraulic drive device, and the insertion plate tube is pressed into the soil under the action of friction. The friction insertion plate assembly used to output kinetic energy does not need to be set on the upper part of the insertion plate frame, thereby reducing the amount of steel used in the upper part of the insertion plate frame, reducing the weight of the insertion plate frame, reducing costs, improving safety, and enabling light excavators to complete the transfer operation of the insertion plate frame, with high flexibility of use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the insertion plate frame and friction insertion plate assembly of the present invention.

[0024] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0025] Figure 4 This is a first structural schematic diagram of the friction insert assembly of the present invention;

[0026] Figure 5 This is a cross-sectional view of the friction insert assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the second structure of the friction insert assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the friction wheel of the present invention.

[0029] In the diagram: 1. Excavator; 2. Insert plate frame; 3. Friction insert plate assembly; 31. Mounting plate; 32. Guide wheel; 33. Insert plate drive device; 34. Friction wheel; 35. Hydraulic drive device; 36. Transmission component; 37. Sliding frame; 38. Support plate; 39. Slot; 4. Insert plate tube; 5. Friction groove. Detailed Implementation

[0030] like Figures 1 to 7 As shown, in this embodiment, the present invention includes an excavator 1, a insert plate frame 2, and at least one set of friction insert plate assemblies 3. The insert plate frame 2 is rotatably connected to the excavator 1, the friction insert plate assembly 3 is disposed at the lower part of the insert plate frame 2, and the insert plate frame 2 is slidably connected with an insert plate tube 4 that frictionally engages with the friction insert plate assembly 3.

[0031] The construction method includes:

[0032] S1. Clear the soil piles in the site and fill them into the depressions. Then spread the excess soil layer evenly on the soft soil foundation currently under construction and lay a sand cushion layer on the surface of the soft soil foundation.

[0033] S2. Locate and mark the positions where drainage boards will be installed;

[0034] S3. The drainage plate is installed in the insert frame 2, the insert frame 2 is connected to the excavator 1, and the friction insert assembly 3 is adjusted.

[0035] S4. Excavator 1 moves the insert frame 2 to the marked position;

[0036] S5. Install a guide shoe at the insertion end of the drainage board;

[0037] S6. The friction plate assembly 3 clamps the plate tube 4 and presses the plate tube 4 down into the soil layer through friction. After reaching the designated position, the drainage board is cut off, and the friction plate assembly 3 lifts the plate tube 4 back to its original position.

[0038] S7. Repeat steps S4-S6 to complete the insertion of the drainage board at the preset marked position.

[0039] Specifically, the friction plate assembly 3, which acts as the power source, is located at the bottom of the plate frame 2, which lowers the center of the plate frame 2. The upper part of the plate frame 2 only needs to provide guidance and support for the plate tube 4, effectively reducing the overall weight of the plate frame 2 and achieving the goal of lightweighting the plate frame 2. At the same time, after the plate frame 2 is lightweight, the excavator 1 is connected and fixed to the middle area of ​​the plate frame 2 by bolts and screws, which allows the lightweight excavator 1 to lift a higher frame, greatly increasing the insertion depth of the drainage plate truck, improving the safety of use, and ensuring smooth operation with less risk of overturning.

[0040] An installation frame for placing drainage board rolls is provided around the insert frame 2.

[0041] The construction method of using friction-type drainage plate insertion involves using a hydraulic drive device 35 to press the friction wheel 34 against the insertion plate tube 4. Under the action of the pressing friction force, the insertion plate tube 4 is pressed into the soil layer. The friction insertion plate assembly 3 used to output kinetic energy does not need to be set on the upper part of the insertion plate frame 2, thereby reducing the amount of steel used in the upper part of the insertion plate frame 2, reducing the weight of the insertion plate frame 2, achieving cost reduction while improving safety. This allows the light excavator 1 to complete the transfer operation of the insertion plate frame 2, making it highly flexible in use.

[0042] In this embodiment, in step S2, the construction site is measured and laid out, and the lines are laid out at intervals of 0.8-1.2m to meet the requirements of a square layout. The points are laid out and marked with marker paint. The deviation of the points should be kept within 5cm.

[0043] Specifically, the punctuation marks are painted red to make them easier for staff to identify.

[0044] In this embodiment, the friction insert assembly 3 includes a mounting plate 31 fixedly connected to the insert frame 2, a guide wheel 32 pivotally connected to the mounting plate 31 for guiding the insert tube 4, an insert drive device 33 fixedly connected to the mounting plate 31, and two sets of friction wheels 34 pivotally connected to the mounting plate 31. A hydraulic drive device 35 is formed on one side of the mounting plate 31. One end of the hydraulic drive device 35 is connected to one set of friction wheels 34, and the other end of the hydraulic drive device 35 is connected to another set of friction wheels 34. The insert drive device 33 is in transmission cooperation with the friction wheels 34 through a transmission member 36.

[0045] Specifically, the insert drive device 33 is a hydraulic motor, which outputs torque to drive the friction wheel 34 to rotate through the transmission component 36. The transmission component 36 is a spline, which is used to transmit torque. The hydraulic drive device 35 is a hydraulic telescopic rod, which is connected to the shaft of the friction wheel 34 through a connecting rod. The hydraulic drive device 35 is used to drive the friction wheels located on both sides of the mounting base to move closer to the center, clamp and rub the insert tube 4.

[0046] Limit screws are provided on both sides of the mounting plate 31. The limit screws are engaged with the sliding frame 37 to prevent the sliding frame 37 from dislodging due to excessive displacement of the hydraulic drive device 35.

[0047] The guide wheels 32 are located at the upper and lower parts of the mounting plate 31, respectively. The guide wheels 32 are symmetrically arranged on the left and right sides of the mounting plate 31 to push and limit the insertion plate tube 4, so that it remains stable during the insertion process under the pressure and friction.

[0048] In this embodiment, the mounting plate 31 is slidably connected to a sliding frame 37 for pivoting the friction wheel 34, and one end of the sliding frame 37 is fixedly connected to the corresponding end of the hydraulic drive device 35.

[0049] The sliding frame 37 is used to rotatably connect the friction wheel 34, and the mounting plate 31 forms a track to guide the sliding frame 37 to move left and right.

[0050] In this embodiment, the outer wall of the friction wheel 34 is formed with a friction groove 5.

[0051] Specifically, the friction groove 5 has a trapezoidal structure and is pressed and rubbed against the side walls of the friction groove 5 and the insert tube 4.

[0052] In this embodiment, the lower end of the mounting plate 31 is formed with a support plate 38 for supporting the ground, and the middle part of the support plate 38 is provided with a slot 39 for the insertion tube 4 to pass through.

[0053] In this embodiment, in step S6, the hydraulic drive device 35 retracts, driving the two friction wheels 34 to move closer to each other towards the center and press the insertion tube 4. The insertion drive device drives the friction to rotate, and the friction wheels 34 provide a downward insertion force to the insertion tube 4 through friction. The drainage plate enters the soil layer along with the insertion tube 4. When the insertion tube 4 is lifted, the insertion drive device rotates in the opposite direction, driving the insertion tube 4 to move upward.

[0054] In this embodiment, the insert tube 4 is diamond-shaped.

[0055] Although the embodiments of the present invention are described with reference to actual solutions, they do not constitute a limitation on the meaning of the present invention. Modifications to the embodiments and combinations with other solutions based on this specification will be obvious to those skilled in the art.

Claims

1. A construction method for friction-type insertion of drainage boards into soft soil foundations, characterized in that, It includes an excavator (1), a insert frame (2) and at least one set of friction insert assembly (3). The insert frame (2) is rotatably connected to the excavator (1). The friction insert assembly (3) is located at the lower part of the insert frame (2). The insert frame (2) is slidably connected to an insert tube (4) that frictionally engages with the friction insert assembly (3). The construction method includes: S1. Clear the soil piles in the site and fill them into the depressions. Then spread the excess soil layer evenly on the soft soil foundation currently under construction and lay a sand cushion layer on the surface of the soft soil foundation. S2. Locate and mark the positions where drainage boards will be installed; S3. The drainage plate is installed inside the insert frame (2), the insert frame (2) is connected to the excavator (1), and the friction insert assembly (3) is adjusted. S4. The excavator (1) moves the insert frame (2) to the marked position; S5. Install a guide shoe at the insertion end of the drainage board; S6. The friction plate assembly (3) clamps the plate tube (4), and the plate tube (4) is pressed down into the soil layer by friction. After reaching the designated position, the drainage board is cut off, and the friction plate assembly (3) lifts the plate tube (4) back to its original position. S7. Repeat steps S4-S6 to complete the insertion of the drainage board at the preset marked position.

2. The construction method for friction-type insertion of drainage boards in soft soil foundations according to claim 1, characterized in that: In step S2, the construction site is measured and laid out, with a spacing of 0.8-1.2m to meet the requirements of a square layout. The points are laid out and marked with marker paint. The deviation of the points should be kept within 5cm.

3. The construction method for friction-type insertion of drainage boards in soft soil foundations according to claim 1, characterized in that: The friction insert assembly (3) includes a mounting plate (31) fixedly connected to the insert frame (2), a guide wheel (32) pivotally connected to the mounting plate (31) for guiding the insert tube (4), an insert drive device (33) fixedly connected to the mounting plate (31), and two sets of friction wheels (34) pivotally connected to the mounting plate (31). A hydraulic drive device (35) is formed on one side of the mounting plate (31). One end of the hydraulic drive device (35) is connected to one set of friction wheels (34), and the other end of the hydraulic drive device (35) is connected to another friction wheel (34). The insert drive device (33) is driven by the friction wheel (34) through a transmission member (36).

4. The construction method for friction insertion of drainage boards in soft soil foundations according to claim 3, characterized in that: The mounting plate (31) is slidably connected to a sliding frame (37) for pivoting the friction wheel (34), and one end of the sliding frame (37) is fixedly connected to the corresponding end of the hydraulic drive device (35).

5. The construction method for friction-type insertion of drainage boards in soft soil foundations according to claim 3, characterized in that: The outer wall of the friction wheel (34) has a friction groove (5).

6. The construction method for friction insertion of drainage boards in soft soil foundations according to claim 3, characterized in that: The lower end of the mounting plate (31) is formed with a support plate (38) for supporting the ground, and the middle part of the support plate (38) is provided with a slot (39) for the insertion tube (4) to pass through.

7. The construction method for friction insertion of drainage boards in soft soil foundations according to claim 3, characterized in that: In step S6, the hydraulic drive device (35) retracts and drives the two friction wheels (34) to move closer to each other and press the insert tube (4) together. The insert tube drive device drives the friction to rotate, and the friction wheels (34) provide a downward insertion force to the insert tube (4) through friction. The drainage plate enters the soil layer along with the insert tube (4). When the insert tube (4) is lifted, the insert tube drive device rotates in the opposite direction, driving the insert tube (4) to move upward.

8. The construction method for friction-type insertion of drainage boards in soft soil foundations according to claim 1, characterized in that: The insert tube (4) is rhomboid in shape.

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