Cross radiation plastic drainage plate and plate inserting device and construction method thereof

Abstract

The invention discloses a cross radiation plastic drainage plate which comprises a vertical plastic drainage plate, N equidistant transverse plastic drainage plates are arranged on the vertical plastic drainage plate, and each transverse plastic drainage plate is provided with a wing vertical drainage plate crossed with the transverse plastic drainage plate. The bottom edge of the vertical plastic drainage plate is provided with a transverse through hole which is formed after the plate is bent upwards and fixed, and a rivet is arranged in the through hole. Meanwhile, a plate inserting device capable of completely wrapping the cross-shaped radiation plastic drainage plate is arranged and used for drainage plate penetration construction. The hinge structure capable of being opened and closed is arranged on the outer edge of the insertion plate device, the hinge structure is closed during penetration, the sealing performance of the interior of the insertion plate device can be ensured, and external soil is prevented from entering the insertion plate device; when the inserting plate device is pulled out, the hinge structure is opened, and the plastic drainage plate is prevented from being brought out or cut off when the inserting plate device is pulled out. The problem of attenuation of the vacuum degree in the soil body can be effectively solved, and the foundation treatment effect of vacuum preloading is greatly improved.

Description

Technical Field

[0001] The invention relates to a construction method applied to vacuum preloading foundation treatment, and in particular to a novel cross-radiation plastic drainage board and a board inserting device and a construction method thereof. Background Art

[0002] Soft soil generally refers to saturated clay soil with a natural water content greater than the liquid limit and a natural porosity greater than 1, including silt, silty soil, peat, peaty soil, etc. Marine, lake and river sedimentary soft soils are widely distributed in my country's coastal areas and the middle and lower reaches of the Yangtze River, inland lakes and river valleys. In addition, there are a large number of land reclamation projects and dredger-filled soft soils formed during the cleaning of port channels. Due to the high compressibility, low shear strength and poor permeability of soft soil, it is necessary to first reinforce the soft soil when carrying out engineering construction on soft soil foundations.

[0003] The vacuum preloading method is an effective soft soil foundation treatment technology that has been widely used in the fields of geotechnical engineering and civil engineering. The vacuum preloading method inserts a vertical plastic drainage board into the soft soil foundation, then lays a sand cushion layer on the ground and covers it with an airtight film. The vacuum is evacuated under the film to form a negative pressure, thereby increasing the effective stress of the soil in the foundation. The pore water in the soil gradually seeps into the vertical plastic drainage board, causing the soil to consolidate and settle, thereby improving the strength and bearing capacity of the soil.

[0004] Vertical plastic drain boards have two main functions: one is to transfer and diffuse negative pressure into the foundation, and the other is to serve as a drainage channel. The magnitude of negative pressure energy and the transmission effect are the most important factors to ensure the effect of foundation treatment, because the magnitude of negative pressure and the transmission depth are the key factors in foundation compression and consolidation. In actual projects, negative pressure will not only decay along the depth direction, but also decay radially due to the negative pressure generated by the soil columns around the drain board. Therefore, some scholars have proposed a straight-line radial plastic drain board, which sets a series of straight-line plastic drain boards horizontally at different depths of the vertical plastic drain board.

[0005] However, the negative pressure decay problem of the straight-line radiation plastic drain board is still relatively fast at the upper and lower parts of the horizontal drain board. Summary of the invention

[0006] In view of the above-mentioned prior art, the present invention provides a cross-radiated plastic drain board, in which a series of cross-radiated plastic drain boards are arranged horizontally at different depths of the vertical plastic drain board, which can simultaneously solve the problem of the rapid attenuation of negative pressure in the radial direction of the vertical plastic drain board and the problem of the rapid attenuation of negative pressure in the upper and lower parts of the straight-line radiation plastic drain board, and can greatly improve the effective influence range of the plastic drain board; the cross-radiated plastic drain board of the present invention can expand the scope of foundation reinforcement and increase the foundation consolidation rate. At the same time, the present invention also provides a plug-in device and a construction method for the cross-radiated plastic drain board. The cross-radiated plastic drain board of the present invention can solve the problem of vertical and radial attenuation of vacuum in the soil when vacuum preloading is used for foundation treatment, and greatly improve the efficiency of vacuum preloading treatment of the foundation and the foundation treatment effect.

[0007] In order to solve the above technical problems, the present invention proposes a cross-radiated plastic drainage board, a matching plug-in device and a construction method for inserting the drainage board into a soft soil foundation using the plug-in device.

[0008] A cross-radiated plastic drain board proposed in the present invention comprises a vertical plastic drain board, wherein N equally spaced transverse plastic drain boards are arranged on the vertical plastic drain board along the length direction, and the wings on both sides of each transverse plastic drain board are provided with wing vertical drain boards that cross-intersect with the transverse plastic drain board and are symmetrically arranged, and the bottom edge of the vertical plastic drain board is provided with a transverse through hole formed by bending and fixing the board upward, and a rivet is provided in the through hole.

[0009] Furthermore, the cross-radiation plastic drainage board of the present invention comprises:

[0010] The length of the vertical plastic drain board is L+2×L0+L1, L0 is the amount of the upward bending of the bottom edge of the vertical plastic drain board, L1 is the amount that the top of the vertical plastic drain board exceeds the top of the wing vertical drain board located at the top position, the spacing between two adjacent transverse plastic drain boards is A, A=L / N, the wing length of the transverse plastic drain board is L2, and the length of the wing vertical drain board is L3, L3 is 0.5~0.6A and is less than L2.

[0011] The bottom edge of the vertical plastic drain board is bent upward and then fixed with a plurality of short nails. The axial length of the rivet is H, and the lateral width of the vertical plastic drain board is W, where H is greater than W.

[0012] At the same time, the present invention also proposes a plug-in device for the construction of the above-mentioned cross-radiant plastic drainage board, which includes a bottom unit and N-1 upper units welded in series above the bottom unit; the upper unit and the bottom unit both include a main body sleeve, the main body sleeve includes a front plate and a rear plate, the front plate includes three parallel vertical strips and a horizontal strip running through the three vertical strips, the shape of the rear plate is the same as the shape of the front plate, and end plates are respectively connected between the two sides of the front plate and the rear plate edge; the overall contour of the bottom unit and the upper unit after being connected in series is a similar shape that is larger than the contour of the area corresponding to the length L in the cross-radiant plastic drainage board; on the main body sleeve of the upper unit, except for the top and bottom of the middle vertical strip, a split-type first hinge structure is provided between the edges of the front plate and the rear plate; on the main body sleeve of the bottom unit, except for the top of the middle vertical strip, a split-type hinge structure is provided between the edges of the front plate and the rear plate, which In the invention, the hinge structure arranged at the bottom edge of the middle vertical strip is the second hinge structure, and the hinge structures arranged at the other edges are the first hinge structure; the two hinge pieces of the first hinge structure are rectangular hinge pieces, and the two hinge pieces of the second hinge structure are concave hinge pieces, wherein the concave notch is located on one side of the edge adjacent to the other hinge piece; after the first hinge structure located at the top and bottom of the vertical strip and the horizontal strip is closed, the two rectangular hinge pieces form a 90° angle; the first hinges located on both sides of the vertical strip After the structure is closed, the two rectangular hinge pieces are 180°; in the bottom unit, after the second hinge structure located on the bottom plate of the middle vertical strip is closed, the two concave hinge pieces are 90°, and a rectangular hole is formed between the two hinge pieces, and the lateral dimension of the rectangular hole is H1, W

[0013] Furthermore, the plug board device of the present invention, wherein:

[0014] The amount by which the overall outline of the bottom unit and the upper unit connected in series exceeds the perimeter of the outline of the area corresponding to the length L in the cross-radiant plastic drainage board is based on the fact that after all hinges in the plug-in device are closed, the plug-in device covers the cross-radiant plastic drainage board.

[0015] The construction of the cross-radiation plastic drainage board using the board inserting device includes the following steps:

[0016] Step 1) bending the bottom of the cross-radial plastic drain board, fixing it with a row of short nails, and then inserting the rivets into the formed through holes; ​

[0017] Step 2) Open all hinge structures of the plug-in board device, and insert the cross-radiated plastic drain board into the plug-in board device; when the cross-radiated plastic drain board is completely inserted into the plug-in board device, and the rivet is located at the lower part of the vertical plastic drain board; close all hinges, and the rivet is just exposed outside the rectangular hole of the second hinge structure and fits with the outside of the two hinge pieces of the hinge; at this point, the assembly of the cross-radiated plastic drain board and the plug-in board device is completed;

[0018] Step 3) erecting the plugging board device equipped with the cross-radiated plastic drainage board, and using a plugging machine to insert the plugging board device together with the cross-radiated plastic drainage board therein into the soft soil foundation;

[0019] Step 4) After the plug-in device with the cross-radiated plastic drain board penetrates to the designed depth, all hinges of the plug-in device are opened; then the plug-in device is pulled out; the cross-radiated plastic drain board is left at the designed depth and position;

[0020] Step 5) Repeat the above steps 1 to 4 to construct the next cross-radiated plastic drainage board until all cross-radiated plastic drainage boards in the site are laid.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] A series of cross-shaped plastic drain boards are arranged horizontally at different depths of the vertical plastic drain boards. This can solve the problem of rapid attenuation of negative pressure along the radial direction of the vertical plastic drain boards and the problem of rapid attenuation of negative pressure in the upper and lower parts of the straight-line radial plastic drain boards. This can greatly increase the effective influence range of the plastic drain boards, as shown in Figures 3(a), 3(b) and 3(c), thereby expanding the scope of foundation reinforcement and improving the foundation consolidation rate.

[0023] Since there is no plug-in device for a cross-radiation plastic drain board at present, the present invention proposes a plug-in device for a cross-radiation plastic drain board and a construction method thereof, and the plug-in device can also be used for the plug-in construction of a straight-line radiation plastic drain board. The novel cross-radiation plastic drain board and its plug-in device and construction method of the present invention can effectively solve the problem of vacuum attenuation in the soil when vacuum preloading is used for foundation treatment, and greatly improve the efficiency of vacuum preloading treatment of the foundation and the foundation treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the cross-radiation plastic drainage board proposed by the present invention;

[0025] Figure 2 yes Figure 1 Part A in the middle shows a schematic diagram of the local structure of the bottom of the drainage board;

[0026] Figure 3(a) to Figure 3(c) 3(a) is a schematic diagram of the effective influence range of a vertical plastic drain board, FIG3(b) is a schematic diagram of the effective influence range of a straight-line radiation plastic drain board, and FIG3(c) is a schematic diagram of the effective influence range of a cross-radiation plastic drain board of the present invention;

[0027] Figure 4 It is a schematic diagram of the plug-in device of the cross-radiated plastic drain board;

[0028] Figure 5 is a schematic structural diagram of an upper unit 100 in a plug-in device;

[0029] Figure 6 is a schematic structural diagram of a bottom unit 200 in the plug-in device;

[0030] Figure 7(a) to Figure 7(d) 7(a) is a schematic diagram of the disassembly of the bottom unit of the plug-in device, wherein: FIG7(b) is a schematic diagram of the disassembly of the lower part of the middle vertical strip of the bottom unit, FIG7(c) is a schematic diagram of the disassembly of one side of the horizontal strip in the bottom unit, and FIG7(d) is a schematic diagram of the disassembly of the lower part of the vertical strips on both sides of the bottom unit;

[0031] FIG8( a ) is a right side view of the side vertical slat ( 9 ) with the hinge structure closed;

[0032] FIG8( b ) is a schematic diagram of the closed state of the first hinge structure at the lower edges of the vertical strips on both sides shown in part B of FIG8( a );

[0033] FIG8(c) is a schematic diagram of the first hinge structure at the lower edges of the vertical strips on both sides shown in part B of FIG8(a) in an open state;

[0034] FIG9( a ) is a top view of the hinge structure of the horizontal slats ( 8 ) and the side vertical slats ( 9 ) in the open state;

[0035] FIG9(b) is a schematic diagram of the first hinge structure of the side edges of the vertical strips on both sides shown in section C of FIG9(a) in an open state;

[0036] FIG9(c) is a schematic diagram of the closed state of the first hinge structure at the lower edges of the vertical strips on both sides shown in section C of FIG9(a);

[0037] FIG. 10( a ) is a schematic diagram of the disassembled structure of the door latch and hinge pieces of the first hinge structure;

[0038] FIG10( b ) is a schematic diagram of the second hinge structure door latch and hinge piece disassembly structure;

[0039] Figure 11(a) to Figure 11(f) Yes Figure 1The figure shows the entire construction process of inserting the cross-radiated plastic drainage board into the foundation, wherein, in FIG11(a), the transverse hinge structure and the vertical hinge structure in the plug-in device are opened, and the drainage board is inserted into the plug-in device to reach a predetermined position; FIG11(b) is a schematic diagram of the closing of the vertical hinge structure, FIG11(c) is a schematic diagram of the closing of the transverse hinge structure, FIG11(d) is a schematic diagram of the preparation before pulling out the plug-in device, the vertical hinge structure is opened, and then the transverse hinge structure is opened, FIG11(e) is a schematic diagram of the process of pulling out the plug-in device, and FIG11(f) is a schematic diagram of the drainage board remaining in the soil after the plug-in device is pulled out.

[0040] In the figure:

[0041] 1-Vertical plastic drain board 2-Horizontal plastic drain board

[0042] 3-wing vertical drainage board 4-rivet

[0043] 5- short nail 6- horizontal through hole

[0044] 7-middle vertical slats 8-horizontal slats

[0045] 9-side vertical slats 10-front panel

[0046] 11- rear plate 100- upper unit

[0047] 200-Bottom unit 201-Vertical plastic drainage board bottom structure

[0048] 101-middle vertical slat side hinge latch 102-horizontal slat hinge structure latch

[0049] 103- Upper or lower latch of the side vertical slats 104- End triangle of the hinge of the middle vertical slats

[0050] 105-Side vertical slat hinge 106-Outer side upper or lower hinge of horizontal slat

[0051] 107-upper or lower hinge on the inside of the horizontal slat 108-side hinge on the middle vertical slat

[0052] 109- Bottom hinge of the middle vertical slat of the bottom unit 110- Upper or lower hinge of the side vertical slat

[0053] 111- The first hinge structure on the upper or lower part of the side vertical slat 112- The first hinge structure at the bottom of the middle vertical slat

[0054] 113-side vertical slat side first hinge structure 114-middle vertical slat side first hinge structure

[0055] 115- the first hinge structure on the upper or lower part of the outer side of the horizontal strip 116- the first hinge structure on the upper or lower part of the inner side of the horizontal strip

[0056] 117- Transverse slat end plate DETAILED DESCRIPTION

[0057] The present invention proposes a cross-radiated plastic drain board design concept: on the basis of the traditional vertical plastic drain board, a series of cross-radiated plastic drain boards are extended along the vertical intervals and radiate laterally, and the effective influence range of the vacuum pressure is greater than that of the vertical plastic drain board and the straight-line radiation plastic drain board, as shown in Figure 3 (a), Figure 3 (b) and Figure 3 (c). The cross-radiated drain board of the present invention can largely solve the problem of vertical and radial attenuation of the vacuum degree in the soil, thereby increasing the effective influence range of the plastic drain board, improving the foundation consolidation rate, expanding the foundation reinforcement range, and greatly improving the efficiency of vacuum preloading treatment of the foundation and the foundation treatment effect. The present invention not only designs a new type of cross-radiated plastic drain board, but also uses the specially designed plug-in device of the present invention to insert the cross-radiated plastic drain board into the soft soil foundation that needs to be vacuum preloaded at one time. The shape of the plug-in device is consistent with the shape of the cross-radiated plastic drain board and is slightly larger than the cross-radiated plastic drain board, as long as the cross-radiated plastic drain board can be completely wrapped. In the present invention, the construction method mainly includes: loading the cross-radiated plastic drain board into the plug-in board device; inserting the plug-in board device and the drain board into the soft soil foundation; pulling the plug-in board device out of the soft soil foundation; providing a hinge structure that can be opened and closed at the outer edges of the front plate and the rear plate of the plug-in board device, and the hinge structure is closed when the plug-in board device is inserted, which can ensure the sealing of the inside of the plug-in board device and prevent the external soil from entering the plug-in board device; when the plug-in board device is pulled out, the hinge structure is opened to prevent the plastic drain board from being taken out or cut off when the plug-in board device is pulled out. In addition, a curved hole structure and a fixing rivet are provided at the bottom of the cross-radiated plastic drain board, which can fix the plastic drain board in the soil to prevent the plastic drain board from being pulled out or bent when the plug-in board device is pulled out, so as to ensure that the cross-radiated plastic drain board is in a pre-designed position in the soft soil foundation.

[0058] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.

[0059] like Figure 1 As shown, a cross-radiated plastic drain board proposed in the present invention comprises a vertical plastic drain board 1, on which N equally spaced transverse plastic drain boards 2 are arranged along the length direction, and the wings on both sides of each transverse plastic drain board 2 are provided with wing vertical drain boards 3 that cross-intersect with the transverse plastic drain board 2 and are symmetrically arranged, and the bottom edge of the vertical plastic drain board 1 is provided with a transverse through hole 6 formed by bending the board upward and fixing it, and a rivet 4 is provided in the through hole, as shown in FIG. Figure 2As shown; the bottom edge of the vertical plastic drain board 1 is bent upward and fixed with a number of short nails 5, the axial length of the rivet 4 is H, the lateral width of the vertical plastic drain board 1 is W, and H is greater than W.

[0060] In the present invention, the length of the vertical plastic drain board 1 is L+2×L0+L1, L0 is the amount of the upward bending of the bottom edge of the vertical plastic drain board 1, L1 is the amount that the top of the vertical plastic drain board 1 exceeds the top of the wing vertical drain board 3 located at the top position, the spacing between two adjacent transverse plastic drain boards 2 is A, A=L / N, the wing length of the transverse plastic drain board 2 is L2, and the length of the wing vertical drain board 3 is L3, L3 is 0.5~0.6A and is less than L2.

[0061] The board inserting device proposed in the present invention for the construction of the above-mentioned cross-radiation plastic drainage board is as follows: Figure 4 As shown, the plug board device includes a bottom unit 200 and N-1 upper units 100 which are sequentially welded in series above the bottom unit 200 .

[0062] The upper unit 100 and the bottom unit 200 both include a main body cover, and the main body cover includes a front plate and a rear plate. The front plate includes three parallel vertical strips and a horizontal strip that runs through the three vertical strips. The shape of the rear plate is the same as that of the front plate. The front plate and the rear plate are connected to the two sides of the edge with end plates 117, respectively. Figure 5 and Figure 6 As shown, the upper and lower ends of the end plate 117 are in a 90° symmetrical pointed angle shape, so that the two hinge pieces on or below the horizontal strip form a 90° angle after closing; the overall outline of the bottom unit 200 and the upper unit 100 after being connected in series is a similar shape that is larger than the outline of the area corresponding to the length L in the cross-radiated plastic drain board, as long as it can enclose the cross-radiated plastic drain board therein, that is, the overall outline of the bottom unit 200 and the upper unit 100 after being connected in series is larger than the periphery of the outline of the area corresponding to the length L in the cross-radiated plastic drain board, and the plug-in device covers the cross-radiated plastic drain board after all the hinges in the plug-in device are closed.

[0063] The main body of the upper unit 100 is provided with a first hinge structure of split type between the edges of the front plate and the rear plate, except for the top and bottom of the middle vertical strip.

[0064] The main body of the bottom unit 200 is provided with a split hinge structure between the edges of the front plate and the rear plate, except for the top of the middle vertical strip. The hinge structure provided at the bottom edge of the middle vertical strip is the second hinge structure, and the hinge structures provided at the other edges are the first hinge structure. Figure 5 shown.

[0065] The two hinge pieces of the first hinge structure are rectangular hinge pieces, as shown in FIG10(a), and the two hinge pieces of the second hinge structure are concave hinge pieces, as shown in FIG10(b), wherein the concave notch is located on one side of the adjacent side of the other hinge piece, as shown in FIG10(b). Figure 6 shown.

[0066] Regardless of the upper unit 100 or the bottom unit 200, when the first hinge structure located at the top and bottom of the vertical slats and the horizontal slats is closed, the two rectangular hinge pieces form an angle of 90°; when the first hinge structure located at both sides of the vertical slats is closed, the two rectangular hinge pieces form an angle of 180°, as shown in FIG. 11(c).

[0067] In the bottom unit 200, after the second hinge structure located at the bottom plate of the middle vertical strip is closed, the two concave hinge pieces are 90 degrees, and a rectangular hole is formed between the two hinge pieces, as shown in Figure 7 (a). The lateral dimension of the rectangular hole is H1, W

[0068] After all the first hinge structures and the second hinge structures are opened, the hinge pieces are flush with the front plate piece or the rear plate piece or are located outside the front plate piece or the rear plate piece, respectively. Figure 9(a) to Figure 9(c) As shown in Figure 11(a).

[0069] The construction process of using the plugging device proposed in the present invention to insert the cross-radiated plastic drainage board of the present invention into the soil is as follows: Figure 11(a) to Figure 11(f) As shown, the steps are as follows:

[0070] Step 1) bend the bottom of the cross-radial plastic drain board, fix it with a row of short nails 5, and then insert the rivet 4 into the formed through hole, as shown in FIG. Figure 1 and Figure 2 As shown;

[0071] ​Step 2) Open all hinge structures of the plug-in board device, insert the cross-radiated plastic drain board into the plug-in board device, as shown in FIG11(a), when the cross-radiated plastic drain board is completely loaded into the plug-in board device, and the rivet 4 is located at the lower part of the vertical plastic drain board 1, as shown in FIG11(b), close all hinges, and the rivet 4 is just exposed outside the rectangular hole of the second hinge structure and fits with the outside of the two hinge pieces of the hinge, as shown in FIG11(c). At this point, the assembly of the cross-radiated plastic drain board and the plug-in board device is completed;

[0072] Step 3) erecting the plugging board device equipped with the cross-radiated plastic drainage board, and using a plugging machine to insert the plugging board device together with the cross-radiated plastic drainage board therein into the soft soil foundation;

[0073] Step 4) After the plug-in device with the cross-radiated plastic drain board is penetrated to the designed depth, all hinges of the plug-in device are opened, as shown in FIG. 11( d ), and then the plug-in device is pulled out, as shown in FIG. 11( e ), and the cross-radiated plastic drain board is left at the designed depth and position, as shown in FIG. 11( f );

[0074] Step 5) Repeat the above steps 1 to 4 to construct the next cross-radiated plastic drainage board until all cross-radiated plastic drainage boards in the site are laid.

[0075] Example:

[0076] In this embodiment, the width of the vertical plastic drain board 1 is 100mm, the thickness is 4mm, and the length is determined according to the depth of the foundation treatment. The length of the horizontal plastic drain board 2 is 2060mm, the width is 100mm, and the thickness is 4mm. The length of the wing vertical drain board 3 is 700mm, the width is 100mm, and the thickness is 4mm. The horizontal plastic drain board 2 is welded to the vertical plastic drain board 1 by hot melt welding, and the wing vertical drain board 3 is also welded to the horizontal plastic drain board 2 by hot melt welding. The bottom of the vertical plastic drain board 1 is a curved hole structure, as shown in the attached Figure 2 As shown, the bottom of the vertical plastic drain board 1 is first bent, and then the bent portion is fixed by a row of short nails 5 to form a transverse through hole 6, and finally the rivet 4 is placed in the transverse through hole 6. When the plug-in device is inserted downward, the drain board can be inserted into the soil together through the rivet 4; when the plug-in device is pulled out, the rivet 4 can fix the drain board in the soil to prevent the drain board from being taken out.

[0077] Production of the cross-radiation plastic drain board of the present invention: The plastic drain boards produced in the factory are generally long strips with a width of 100mm and a thickness of 4mm, and the length of a roll is usually between 100 meters and 200 meters. First, according to the depth of foundation treatment, a vertical plastic drain board 1, a plurality of horizontal plastic drain boards 2 with a length of 2060mm, and a plurality of wing vertical drain boards 3 with a length of 700mm are cut; then the horizontal plastic drain boards 2 are welded to the vertical plastic drain boards 1 by hot melt welding; finally, the wing vertical drain boards 3 are also welded to the horizontal plastic drain boards 2 by hot melt welding to complete the production of the cross-radiation plastic drain board.

[0078] The cross-radiation plastic drain board inserting device is composed of a bottom unit 200 and a plurality of identical upper units 100, such as Figure 4 As shown. The bottom unit 200, such as Figure 6 As shown, the upper unit 100 is as shown in Figure 5 The schematic diagram of the disassembly of the bottom unit 200 is shown in FIG. Figure 4 and Figure 7(a) to Figure 7(d) As shown, the bottom unit 200 is composed of the following components: middle vertical slat 7, horizontal slat 8, side vertical slat 9, middle vertical slat side hinge bolt 101, horizontal slat hinge structure bolt 102, side vertical slat upper or lower bolt 103, middle vertical slat hinge end triangle 104, side vertical slat hinge 105, horizontal slat outer upper or lower hinge 106, horizontal slat inner upper or lower hinge 107, middle vertical slat side hinge 108, bottom unit middle vertical slat bottom hinge 109, side vertical slat upper or lower hinge 110. The upper unit 100 is as shown in FIG. Figure 5 As shown, it is composed of the following components: a middle vertical slat 7, a horizontal slat 8, a side vertical slat 9, a side hinge latch 101 of the middle vertical slat, a horizontal slat hinge structure latch 102, an upper or lower latch 103 of the side vertical slat, an end triangle piece 104 of the middle vertical slat hinge, a side vertical slat hinge 105, an upper or lower hinge piece 106 on the outer side of the horizontal slat, an upper or lower hinge piece 107 on the inner side of the horizontal slat, a side hinge piece 108 of the middle vertical slat and an upper or lower hinge piece 110 of the side vertical slat. It can be seen that the difference between the upper unit 100 and the bottom unit 200 is that the middle vertical slat bottom hinge piece 109 is missing.

[0079] In this embodiment, the shape of the plug-in device is consistent with the shape of the cross-radiated plastic drainage board 1, the length of the middle vertical slat 7 is 1400mm, the width is 120mm, and the thickness is 10mm; the length of the horizontal slat 8 is 2120mm, the width is 100mm, and the thickness is 10mm; the length of the side vertical slat 9 is 700mm, the width is 120mm, and the thickness is 10mm. The length of the middle vertical slat side hinge bolt 101 is 100mm and the diameter is 2mm; the length of the horizontal slat hinge structure bolt 102 is 100mm and the diameter is 2mm; the length of the upper or lower bolt 103 of the side vertical slat is 20mm and the diameter is 2mm; the end triangle piece 104 of the middle vertical slat hinge piece is an isosceles right triangle with a right angle length of 5mm and a thickness of 1mm; the length of the side vertical slat hinge piece 105 is 300mm, the width is 7mm and the thickness is 1mm; the length of the outer hinge piece 106 of the horizontal slat is 400mm, the width is 7 mm, thickness is 1mm; the upper or lower hinge piece 107 on the inner side of the horizontal strip is 480mm long, 7mm wide and 1mm thick; the side hinge piece 108 of the middle vertical strip is 1000mm long, 5mm wide and 1mm thick; the bottom hinge piece 109 of the middle vertical strip of the bottom unit is 120mm long, 7mm wide and 1mm thick, of which the length of the opening part is 100mm and the width is 5mm; the upper or lower hinge piece 110 of the side vertical strip is 120mm long, 7mm wide and 1mm thick.

[0080] The structures of the upper units 100 are completely the same. The difference between the bottom unit 200 and the upper unit 100 is that a first hinge structure 112 at the bottom of the middle vertical slat 7 is added. Figure 5 and Figure 6 The following takes the bottom unit 200 as an example to describe the various components in detail. Figure 7(a) to Figure 7(d)As shown, the middle vertical slat side hinge bolt 101 is welded to the sides of the middle vertical slat 7 and the side vertical slat 9, and is used to connect the middle vertical slat side hinge piece 108 and the side vertical slat hinge piece 105; the horizontal slat hinge structure bolt 102 is welded to the upper and lower parts of the horizontal slat 8, and is used to connect the upper or lower hinge piece 106 on the outer side of the horizontal slat and the upper or lower hinge piece 107 on the inner side of the horizontal slat; the upper or lower bolt 103 of the side vertical slat is welded to the upper and lower parts of the side vertical slat 9 and the bottom of the middle vertical slat 7, and is used to connect the upper or lower hinge piece 106 on the outer side of the horizontal slat and the upper or lower hinge piece 107 on the inner side of the horizontal slat. The leaf piece 110 and the bottom hinge piece 109 of the middle vertical slat of the bottom unit; the triangular piece 104 at the end of the middle vertical slat hinge piece is welded to the end of the side hinge piece 108 of the middle vertical slat and the end of the side vertical slat hinge piece 105 to ensure the closure of the vertical slat 7 and the side vertical slat 9. Figure 8(a) shows a right view of the first hinge structure of the side vertical slat edge closed, Figure 8(b) shows an enlarged view of the local part shown in part B of Figure 8(a), and Figure 8(c) shows the hinge structure shown in part B of Figure 8(a) in the open state.

[0081] The upper or lower hinge piece 106 on the outer side of the transverse slat is combined with the transverse slat hinge structure latch 102 to form the upper or lower first hinge structure 115 on the outer side of the transverse slat. The upper or lower hinge piece 106 on the outer side of the transverse slat can rotate around the transverse slat hinge structure latch 102 to close or open the upper or lower first hinge structure 115 on the outer side of the transverse slat. It is closed during the insertion process of the plug-in device to ensure its sealing, and opened during the removal process of the plug-in device to ensure that the drainage board will not be brought out. The upper or lower hinge piece 107 on the inner side of the transverse slat is combined with the transverse slat hinge structure latch 102 to form the first hinge structure 116 on the inner side of the transverse slat. The upper or lower hinge piece 106 on the outer side of the transverse slat can rotate around the transverse slat hinge structure latch 102 to close or open the first hinge structure 116 on the inner side of the transverse slat. It is closed during the insertion process of the plug-in device to ensure its sealing, and opened during the removal process of the plug-in device to ensure that the drainage board will not be brought out.

[0082] The side vertical slat hinge piece 105 is combined with the middle vertical slat side hinge latch 101 to form the side first hinge structure 113 of the side vertical slat. The side vertical slat hinge piece 105 can rotate around the middle vertical slat side hinge latch 101 to close or open the side first hinge structure 113 of the side vertical slat. The side hinge piece 108 of the middle vertical slat is combined with the middle vertical slat side hinge latch 101 to form the side first hinge structure 114 of the middle vertical slat. The side hinge piece 108 of the middle vertical slat can rotate around the middle vertical slat side hinge latch 101 to close or open the side first hinge structure 114 of the middle vertical slat. The side hinge piece 108 of the middle vertical slat can rotate around the middle vertical slat side hinge latch 101 to close or open the side first hinge structure 114 of the middle vertical slat. The side hinge piece 108 of the middle vertical slat can rotate around the middle vertical slat side hinge latch 101 to close or open the side first hinge structure 114 of the middle vertical slat. The side hinge piece 114 of the middle vertical slat can be closed during the insertion of the plugging device and opened during the withdrawal of the plugging device. Figure 9(a) is a top view of the hinge structure of the horizontal slats 8 and the side vertical slats 9 in the open state, Figure 9(b) shows a partial enlarged view of part C in Figure 9(a); Figure 9(c) shows the closed state of the first hinge structure at the lower edges of the vertical slats on both sides of part C in Figure 9(a).

[0083] In the present invention, all the parts and components involved in the plugging device are made of steel.

[0084] As shown in Figure 7(a) and Figure 6 As shown, the bottom hinge piece 109 of the middle vertical slat of the bottom unit is combined with the upper or lower door latch 103 of the side vertical slat to form the first bottom hinge structure 112 of the middle vertical slat. The bottom hinge piece 109 of the middle vertical slat of the bottom unit can rotate around the upper or lower door latch 103 of the side vertical slat to close or open the first bottom hinge structure 112 of the middle vertical slat, which is closed during the insertion process of the plug-in device and opened during the removal process of the plug-in device. The upper or lower hinge piece 110 of the side vertical strip is combined with the upper or lower door latch 103 of the side vertical strip to form the upper or lower first hinge structure 111 of the side vertical strip. The upper or lower hinge piece 110 of the side vertical strip can rotate around the upper or lower door latch 103 of the side vertical strip to close or open the upper or lower first hinge structure 111 of the side vertical strip. It is closed during the insertion process of the plug-in device to ensure its sealing, and opened when the plug-in device is pulled out to ensure that the drainage board will not be brought out.

[0085] In the present invention, the opening and closing of the hinge structure can be realized in a variety of structural forms, which are not limited in the present invention, and can adopt an electromechanical combination form. For example, a spring drive structure is provided at the connection between the hinge structure and the plug-in device, and the hinge is in an open state under the action of the spring force. When the hinge structure is closed, the spring drive device can be clamped by a baffle. After the penetration is completed, the baffle is opened, and the hinge structure will open again under the action of the spring force, and then the plug-in device can be pulled out.

[0086] The construction process of the cross-radiation plastic drainage board is as follows:

[0087] The cross-radiation plastic drainage board of the present invention is installed into the board inserting device. Figure 5 , Figure 6 As shown in Figures 11(a) and 11(b), open the first hinge structure 114 on the side of the middle vertical slat 7 of each upper unit 100 on the plug device; open the first hinge structure 114 on the side of the middle vertical slat and the first hinge structure 112 on the bottom of the middle vertical slat on the middle vertical slat 7 of the bottom unit 10; open the first hinge structure 115 on the outer side of the horizontal slat and the first hinge structure 116 on the inner side of the horizontal slat on the horizontal slat 8 of each upper unit 11 and bottom unit 10; open the first hinge structure 111 on the upper or lower side vertical slat and the first hinge structure 113 on the side vertical slat on the side vertical slat 9 of each upper unit 100 and bottom unit 200. The cross-radiated plastic drain board is loaded into the plug-in device from top to bottom. After loading, the bottom of the cross-radiated plastic drain board is bent, and then the bent part is fixed by a row of short nails 5, and finally the rivet 4 is inserted into the horizontal through hole 6 formed by the bent hole. When each hinge structure is closed, the bottom ends of the two hinge pieces intersect and combine together. When the first hinge structure 111 on the upper or lower part of the side vertical strip, the first hinge structure 112 on the bottom of the middle vertical strip, the first hinge structure 115 on the upper or lower part of the outer side of the horizontal strip, and the first hinge structure 116 on the upper or lower part of the inner side of the horizontal strip are closed, a certain angle is formed between the two hinge pieces to form a wedge structure, which is helpful for the insertion of the plug-in device; when the first hinge structure 113 on the side of the side vertical strip and the first hinge structure 114 on the side of the middle vertical strip are closed, the two hinge pieces are in the same plane, and the ends of the first hinge structures 113 and 114 are provided with triangular pieces 104, which can just close the triangular gaps at both ends of the hinge structures 111 and 112. When each hinge structure is opened, the two hinge pieces are parallel to the surfaces of the front and rear plates of the plugging device respectively.

[0088] The insert device is inserted into the soft soil foundation with the drainage board. Figure 5 , Figure 6As shown in FIG. 11(c), when the plug-in device is inserted downward, each hinge structure is closed, so that the plug-in device can completely wrap the drain board to prevent the surrounding soil from entering the plug-in device, causing the drain board to be difficult to penetrate or bend; when the plug-in device is pulled out upward, each hinge structure is opened, so that the plug-in device and the drain board are completely separated, preventing the plug-in device from pulling out or cutting off the drain board. The closing and opening of the hinge structure can be controlled by the latch and the hinge piece. Close the first hinge structure 114 on the middle vertical slat 7 of each upper unit 100 on the plugging device; close the first hinge structure 114 on the middle vertical slat 7 of the bottom unit 200 and the first hinge structure 112 on the bottom of the middle vertical slat; close the first hinge structure 115 on the outer side or lower side of the horizontal slat and the first hinge structure 116 on the inner side or lower side of the horizontal slat on the horizontal slat 8 of each upper unit 100 and the bottom unit 200; close the first hinge structure 111 on the upper or lower side vertical slat and the first hinge structure 113 on the side vertical slat on the side vertical slat 9 of each upper unit 100 and the bottom unit 200. At this time, the side hinge piece 108 of the middle vertical slat and the triangular steel sheet 104 at the end of the side vertical slat hinge piece 105 are also in a closed state, and the horizontal slat end plate piece 117 at the end of the horizontal slat 8 is also in a closed state. Therefore, the entire plug-in device completely wraps and seals the cross-radiated plastic drain board, and then the plug-in machine is used to gradually insert the plug-in device and the drain board into the soft soil foundation. During the insertion process, the plug-in device completely isolates the cross-radiated plastic drain board from the surrounding soil to prevent the surrounding soil from entering the plug-in device, causing the drain board to be difficult to penetrate or bend. In addition, the first hinge structure 111 on the upper or lower part of the side vertical slats, the first hinge structure 112 on the bottom of the middle vertical slats, the first hinge structure 115 on the upper or lower part of the outer side of the horizontal slats, and the first hinge structure 116 on the upper or lower part of the inner side of the horizontal slats form a wedge structure with a certain angle when the two hinge pieces are closed. The wedge structure can greatly reduce the penetration force of the plug-in device into the foundation.

[0089] Pull the plug-in device out of the soft soil foundation. Figure 5 , Figure 6As shown in FIG11(d), after the plugging device and the drain board are inserted to the designed depth, the plugging device is pulled out of the soft soil foundation. The first hinge structure 114 on the side of the middle vertical slats 7 of each upper unit 100 on the plugging device is opened; the first hinge structure 114 on the side of the middle vertical slats 7 of the bottom unit 10 and the first hinge structure 112 on the bottom of the middle vertical slats are opened; the first hinge structure 115 on the outer side of the horizontal slats and the first hinge structure 116 on the inner side of the horizontal slats are opened on the horizontal slats 8 of each upper unit 11 and the bottom unit 10; the first hinge structure 111 on the upper or lower side vertical slats and the first hinge structure 113 on the side vertical slats on the side vertical slats 9 of each upper unit 100 and the bottom unit 200 are opened. At this time, the side hinge pieces 108 of the middle vertical slats and the triangular steel pieces 104 at the ends of the side vertical slat hinge pieces 105 are also in an open state. Therefore, the plugging device is completely separated from the drain board, and then the plugging device is gradually pulled out of the soft soil foundation by the plugging machine. At this time, the plugging device is completely separated from the drain board to prevent the drain board from being pulled out or cut off when the plugging device is pulled upward.

[0090] The drain board is fixed in the soil, completing the construction of the cross-radiated plastic drain board. When the plug-in device is pulled out upward, the bottom rivet 4 of the drain board can fix the drain board in the soil, as shown in Figure 11 (f), to prevent the drain board from being pulled out when the plug-in device is pulled out or causing the plastic drain board to bend, so as to ensure that the cross-radiated plastic drain board is in the pre-designed position in the soft soil foundation. After the plug-in device is completely pulled out, the cross-radiated plastic drain board is left in the pre-designed position in the soft soil foundation, thus completing the construction of a cross-radiated plastic drain board. Repeat the above steps of "installing the drain board into the plug-in device - inserting the plug-in device with the drain board into the soft soil foundation - pulling the plug-in device out of the soft soil foundation - fixing the drain board in the soil", and the laying of all cross-radiated plastic drain boards in the site can be completed.

[0091] Although the present invention has been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many improvements and modifications without departing from the purpose of the present invention, such as changing the shape of the radiation plastic drain board, the specific structure of the plug-in device, etc., which are all protected by the present invention.

Claims

1. A cross-radiation plastic drain board, comprising a vertical plastic drain board (1), characterized in that: The vertical plastic drain board (1) is provided with N equally spaced transverse plastic drain boards (2) along the length direction, and the wings on both sides of each transverse plastic drain board (2) are provided with wing vertical drain boards (3) that cross and intersect with the transverse plastic drain board (2) and are symmetrically arranged, and the bottom edge of the vertical plastic drain board (1) is provided with a transverse through hole (6) formed by bending the board upward and fixing it, and a rivet (4) is provided in the through hole.

2. The cross-radiation plastic drainage board according to claim 1 is characterized in that: The length of the vertical plastic drain board (1) is L+2×L0+L1, L0 is the amount of the bottom edge of the vertical plastic drain board (1) bending upward, L1 is the amount that the top of the vertical plastic drain board (1) exceeds the top of the wing vertical drain board (3) located at the top position, the spacing between two adjacent transverse plastic drain boards (2) is A, A=L / N, the wing length of the transverse plastic drain board (2) is L2, the length of the wing vertical drain board (3) is L3, L3 is 0.5~0.6A and is less than L2.

3. The cross-radiation plastic drainage board according to claim 1 is characterized in that: The bottom edge of the vertical plastic drain board (1) is bent upward and fixed with a plurality of short nails (5), the axial length of the rivet (4) is H, the transverse width of the vertical plastic drain board (1) is W, and H is greater than W.

4. A board inserting device for a cross-radiated plastic drain board as described in any one of claims 1 to 3, characterized in that: The plug-in board device comprises a bottom unit (200) and N-1 upper units (100) which are sequentially welded in series above the bottom unit (200); The upper unit (100) and the bottom unit (200) both include a main body sleeve, the main body sleeve includes a front plate and a rear plate, the front plate includes three parallel vertical strips and a horizontal strip running through the three vertical strips, the shape of the rear plate is the same as the shape of the front plate, and the two sides of the front plate and the rear plate edge are respectively connected to end plates (117); the overall profile of the bottom unit (200) and the upper unit (100) after being connected in series is a similar shape larger than the profile of the area corresponding to the length L in the cross-radiated plastic drainage board; The main body of the upper unit (100) is provided with a split first hinge structure between the edges of the front plate and the rear plate, except for the top and bottom of the middle vertical strip; The main body of the bottom unit (200) is provided with a split hinge structure between the edges of the front plate and the rear plate, except for the top of the middle vertical strip, wherein the hinge structure provided at the bottom edge of the middle vertical strip is a second hinge structure, and the hinge structures provided at the remaining edges are first hinge structures; The two hinge pieces of the first hinge structure are rectangular hinge pieces, and the two hinge pieces of the second hinge structure are concave hinge pieces, wherein the concave notch is located on one side of the side adjacent to the other hinge piece; After the first hinge structure located at the top and bottom of the vertical slats and the horizontal slats is closed, the two rectangular hinge pieces form a 90° angle; After the first hinge structure located on both sides of the vertical strip is closed, the two rectangular hinge pieces are 180 degrees apart; In the bottom unit (200), after the second hinge structure located on the bottom plate of the middle vertical strip is closed, the two concave hinge pieces are at 90°, and a rectangular hole is formed between the two hinge pieces, the lateral dimension of the rectangular hole is H1, W<H1<H, and the width of the rectangular hole is greater than the thickness of the vertical plastic drain board (1); After all the first hinge structures and the second hinge structures are opened, the hinge pieces are flush with the front plate piece or the rear plate piece or are located on the outside of the front plate piece or the rear plate piece respectively.

5. The plug-in device according to claim 4, characterized in that: The amount by which the overall outline of the bottom unit (200) and the upper unit (100) connected in series exceeds the perimeter of the outline of the area corresponding to the length L in the cross-radiated plastic drain board is determined when all hinges in the plug board device are closed and the plug board device covers the cross-radiated plastic drain board.

6. A construction method of a cross-radiation plastic drainage board as claimed in any one of claims 1 to 3, characterized in that: Use the plug board device as claimed in claim 4 or 5, and follow the following steps: Step 1) bend the bottom of the cross-radiated plastic drain plate, fix it with a row of short nails (5), and then insert the rivet (4) into the formed through hole; Step 2) Open all hinge structures of the plug-in board device, insert the cross-radiated plastic drain board into the plug-in board device, and when the cross-radiated plastic drain board is completely inserted into the plug-in board device and the rivet (4) is located at the lower part of the vertical plastic drain board (1), close all hinges, and the rivet (4) is just exposed outside the rectangular hole of the second hinge structure and fits with the outside of the two hinge pieces of the hinge. At this point, the assembly of the cross-radiated plastic drain board and the plug-in board device is completed; Step 3) erecting the plugging board device equipped with the cross-radiated plastic drainage board, and using a plugging machine to insert the plugging board device together with the cross-radiated plastic drainage board therein into the soft soil foundation; Step 4) After the plug-in device with the cross-radiated plastic drain board penetrates to the designed depth, all hinges of the plug-in device are opened, and then the plug-in device is pulled out, and the cross-radiated plastic drain board is left at the designed depth and position; Step 5) Repeat the above steps 1 to 4 to construct the next cross-radiated plastic drainage board until all cross-radiated plastic drainage boards in the site are laid.

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