New and old roadbed settlement coordination device based on vacuum preloading

Abstract

The utility model provides a new and old roadbed settlement coordination device based on vacuum preloading, which comprises an exhaust pipe arranged on an external vacuum pump, one end of the exhaust pipe is fixedly connected with a plurality of butt joints, two sides of each butt joint are fixedly connected with a plurality of drainage plates, one side of the exhaust pipe is fixedly connected with a positioning base, and the other side of the exhaust pipe is fixedly connected with a plurality of drainage plates. The multiple drainage plates are arranged in a widened roadbed area and an old roadbed area correspondingly, the arrangement density of the drainage plates in the widened roadbed area is larger than that of the drainage plates in the old roadbed area, a positioning ring is fixed to the upper portion of the positioning base through bolts, multiple positioning piles are welded to the lower portion of the positioning base, and screw rods are rotationally connected into the positioning piles. Drainage plates at different intervals are installed in a new roadbed and an old roadbed, vacuum preloading is used, the water content in the roadbed is effectively reduced, synchronous coordination and simultaneous positioning of settlement of the new roadbed and the old roadbed are achieved, the situation that an exhaust pipe deflects and twists in long-term use is effectively prevented, and the service life of the exhaust pipe is prolonged. Meanwhile, displacement of the drainage plate caused by movement of the exhaust pipe is also avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to road engineering technical field especially relates to a device of new and old roadbed settlement coordination based on vacuum preloading. BACKGROUND

[0002] The different settlement of new and old roadbeds can cause a series of problems. First, this uneven settlement can lead to the instability of the roadbed, and the settlement, displacement or deformation may occur at the connection between the new and old roadbeds, which directly affects the stability of the road and driving safety. Secondly, the pavement structure may also be damaged, and cracks, damage and uneven settlement may occur, which not only affects the service life of the road, but also threatens the driving comfort and safety. The different water contents in the new and old roadbeds affect the settlement coordination between the new and old roadbeds. In order to improve the coordination of the settlement between the new and old roadbeds, drainage boards are needed to reduce the water content of the roadbed through vacuum preloading.

[0003] Through retrieval, the patent with the Chinese patent publication number CN209722923U discloses a settlement device for monitoring soft foundation vacuum preloading. The device takes a long time to extract vacuum, up to several months. However, the air extraction pipe and the drainage board are only fixed on the ground by the drainage board, which is prone to damage and backflow after a long period of placement, and additional reinforcing components are needed. Therefore, a device of new and old roadbed settlement coordination based on vacuum preloading is proposed. SUMMARY

[0004] Therefore, the embodiments of the utility model hope to provide a device of new and old roadbed settlement coordination based on vacuum preloading to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice.

[0005] The technical scheme of the embodiments of the utility model is implemented as follows: an air extraction pipe is installed on an external vacuum pump, a plurality of butt joints are fixedly connected to one end of the air extraction pipe, a plurality of drainage boards are fixedly connected to both sides of the butt joints, the plurality of drainage boards are arranged in the widened roadbed area and the old roadbed area respectively, and the arrangement density of the drainage boards in the widened roadbed area is greater than that in the old roadbed area.

[0006] In some embodiments, a positioning ring is bolted above the positioning base, and a plurality of positioning piles are welded below the positioning base.

[0007] In some embodiments, a screw rod is rotatably connected inside the positioning pile, a screw rod nut is threadedly connected to one side of the screw rod, the screw rod nut is slidably connected to the inside of the positioning pile on one side, and a deployment bracket is fixedly connected below the positioning pile.

[0008] In some embodiments, a plurality of L-shaped brackets are fixedly connected below the deployment bracket, a waist hole is fixedly connected below the L-shaped bracket, and a limiting shaft is movably connected in the waist hole.

[0009] In some embodiments, the limiting shaft is fixedly connected with a clamping plate at one end, rotating supports are rotatably connected to the two sides of the clamping plate, one end of the rotating supports is fixedly connected to the inner wall of the positioning pile, a plurality of through grooves are formed in the lower side of the positioning pile, and the clamping plate is slidably connected in the through grooves.

[0010] In some embodiments, the positioning pile is rotatably connected with a driving gear and a synchronous gear at one side, the driving gear and the synchronous gear are in mesh with each other, and the synchronous gear is fixedly connected to the screw rod at the lower end.

[0011] In some embodiments, the counter joint is fixedly connected with a limiting boss inside, the limiting boss is fixedly connected with a filter membrane at one end, and the drainage plate is fixedly connected with a filter plate at the bottom.

[0012] In some embodiments, the counter joint is provided with a sealing groove at the two sides, the drainage plate is fixedly connected with a mounting plate at one end, and the mounting plate is attached to the inner side of the counter joint and the sealing groove at the other end.

[0013] The embodiments of the utility model have the following advantages due to the adoption of the above technical scheme:

[0014] 1. A device for coordinating the settlement of new and old roadbeds based on vacuum preloading, by installing drainage plates with different intervals in the new and old roadbeds, using vacuum preloading, effectively reducing the water content in the roadbed, realizing the synchronous coordination of the settlement of the new and old roadbeds, and the structures of the positioning base, the positioning pile and the rotatable clamping plate, effectively preventing the deflection and distortion of the air suction pipe in long-term use, and avoiding the displacement of the drainage plate caused by the movement of the air suction pipe.

[0015] 2. A device for coordinating the settlement of new and old roadbeds based on vacuum preloading, by setting a limiting boss and a filter membrane inside the counter joint, and installing a filter plate at the bottom of the drainage plate, preventing the blockage caused by dust and sand in long-term work.

[0016] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the above described illustrative aspects, embodiments and features, further aspects, embodiments and features will be readily apparent from a study of the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0018] Figure 1 It is a front view of the utility model.

[0019] Figure 2 It is the bottom view structural drawing of the utility model;

[0020] Figure 3 It is the drainage plate installation structure drawing of the utility model;

[0021] Figure 4 It is the internal structure drawing of the positioning pile of the utility model;

[0022] Figure 5 It is the lower side partial structure drawing of the positioning pile of the utility model.

[0023] Reference signs:

[0024] 1, suction pipe; 2, drainage plate; 3, butt joint; 4, mounting plate; 5, filter plate; 6, positioning base; 7, positioning ring; 8, positioning pile; 9, sealing groove; 10, limiting boss; 11, filter membrane; 12, driving gear; 13, synchronous gear; 14, screw rod; 15, screw rod nut; 16, unfolding bracket; 17, through groove; 18, L bracket; 19, waist hole; 20, clamping plate; 21, rotating bracket; 22, limiting shaft. DETAILED DESCRIPTION

[0025] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0026] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0027] Embodiment 1:

[0028] As Figures 1-5 shown, a kind of old and new roadbed settlement coordination device based on vacuum preloading, including the suction pipe 1 of installation in external vacuum pump, the suction pipe 1 one end is fixedly connected with multiple butt joints 3, butt joint 3 two sides are fixedly connected with multiple drainage plates 2, multiple the drainage plate is arranged in widening roadbed area and old roadbed area, and drainage plate in two areas is evenly laid and is laid with different density.

[0029] In the installation, the old and new roadbed surface is drilled, and then the plastic drainage plate 2 is installed inside the roadbed, and then the vacuum pump is started, and the vacuum is extracted from the bottom to the outside through the air pipe 1. The vacuum extraction process is a mature technology and will not be repeated here. It can reduce the water content in the old and new roadbeds, and the spacing of the drainage plates 2 in the roadbed area can be 1 meter, and the spacing of the drainage plates 2 in the old roadbed area can be 1.2 meters. The installation spacing of the drainage plates 2 and the butt joint 3 of the old and new roadbeds changes the vacuum extraction efficiency, which can make the water content on both sides tend to be the same and make the settlement synchronous and coordinated.

[0030] In this embodiment, the air pipe 1 is fixedly connected with a positioning base 6 on one side, a positioning ring 7 is bolted above the positioning base 6, and a plurality of positioning piles 8 are welded below the positioning base 6. The positioning base 6 can cooperate with the bolt and the positioning ring 7 to fix the air pipe 1, and then the positioning piles 8 are inserted into the foundation. In this way, the air pipe 1 can be prevented from being skewed and twisted during long-term use, and the movement of the drainage plate 2 caused by the movement of the air pipe 1 can also be prevented.

[0031] In this embodiment, the positioning pile 8 is rotatably connected with a screw rod 14 inside, the screw rod 14 is threadedly connected with a screw nut 15 on one side, the screw nut 15 is slidably connected to the inner side of the positioning pile 8 on one side, the positioning pile 8 is fixedly connected with a unfolding bracket 16 below, a plurality of L-shaped brackets 18 are fixedly connected to the unfolding bracket 16 below, a waist hole 19 is fixedly connected to the L-shaped bracket 18 below, and a limiting shaft 22 is movably connected to the waist hole 19. One end of the limiting shaft 22 is fixedly connected with a clamping plate 20, the clamping plate 20 is rotatably connected with a rotating bracket 21 on both sides, one end of the rotating bracket 21 is fixedly connected to the inner wall of the positioning pile 8, a plurality of through grooves 17 are formed in the lower side of the positioning pile 8, and the clamping plate 20 is slidably connected in the through grooves 17.

[0032] Rotating the screw rod 14 can drive the screw nut 15 to slide downward, thereby driving the plurality of L-shaped brackets 18 below to move. In this way, the waist hole 19 can be used to press the limiting shaft 22 on one side of the clamping plate 20 to rotate, so that the clamping plate 20 can rotate with the one end of the rotating bracket 21 as the center of gravity, and the clamping plate 20 can be inserted into the soil through the through grooves 17. Further improve the positioning effect of the positioning pile 8, and further prevent the air pipe 1 from being twisted and skewed due to the softness of the soil during the vacuum preloading process.

[0033] In this embodiment, the positioning pile 8 is rotatably connected with a drive gear 12 and a synchronous gear 13 on one side, the drive gear 12 and the synchronous gear 13 are meshed with each other, and the synchronous gear 13 is fixedly connected to the screw rod 14 at the lower end. Rotating the drive gear 12 exposed on the outside can quickly rotate the screw rod 14 to control the rotation of the clamping plate 20, which is convenient for installation and disassembly.

[0034] In this embodiment: when installing, holes are opened on the surface of new and old roadbeds, then plastic drainage plates 2 are installed inside the roadbed, then a vacuum pump is started, and vacuum is extracted from the bottom to the outside through suction pipe 1, which can reduce the water content in the new and old roadbeds, and at the same time, the spacing between drainage plates 2 in the roadbed area is widened to 1 meter, and the spacing between drainage plates 2 in the old roadbed area is 1.2 meters. The installation spacing of drainage plates 2 and butt joints 3 in the new and old roadbeds is different, which changes the vacuum extraction efficiency, so that the water content on both sides can be made to converge, and the settlement can be synchronized and coordinated;

[0035] Positioning base 6 can cooperate with bolts and positioning ring 7 to fix suction pipe 1, and then positioning pile 8 is inserted into the foundation, so that in long-term use, it can prevent suction pipe 1 from being twisted and distorted, and also can prevent drainage plate 2 from moving due to the movement of suction pipe 1;

[0036] Rotating screw rod 14 can drive screw nut 15 to slide downward, thereby driving multiple L-shaped supports 18 below to move, so that waist hole 19 can extrude limiting shaft 22 on one side of clamping plate 20 to rotate, so that clamping plate 20 can rotate one end of rotating support 21 as the center of gravity, and pass through slot 17 to be inserted into the soil, thereby further improving the positioning effect of positioning pile 8, and further preventing suction pipe 1 from being twisted and distorted due to soft soil during vacuum preloading;

[0037] Rotating exposed drive gear 12 can quickly rotate screw rod 14 to control the rotation of clamping plate 20, which is convenient for installation and disassembly.

[0038] Embodiment 2:

[0039] A device for coordinating the settlement of new and old roadbeds based on vacuum preloading, which is improved on the basis of embodiment 1, as shown in Figures 1-5 , and

[0040] In this embodiment, limiting boss 10 is fixedly connected inside butt joint 3, one end of limiting boss 10 is fixedly connected with filter membrane 11, and filter plate 5 is fixedly connected at the bottom of drainage plate 2;

[0041] Filter plate 5 can prevent large particles of sand and gravel from entering from the bottom, and filter membrane 11 can further filter to prevent blockage.

[0042] In this embodiment, sealing groove 9 is opened on both sides of butt joint 3, and mounting plate 4 is fixedly connected to one end of drainage plate 2, the other end of mounting plate 4 abuts the inner side of butt joint 3 and sealing groove 9, mounting plate 4 can fix drainage plate 2 on both sides of butt joint 3 through bolts, and at the same time, rubber boss on one end of mounting plate 4 can be inserted into sealing groove 9 to ensure air tightness.

[0043] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for coordinating the settlement of new and old roadbeds based on vacuum preloading, characterized by: Including the installation on the external vacuum pump's exhaust pipe (1), one end fixed connection has multiple butt joint (3) to butt joint (3) both sides fixed connection has multiple drainage plate (2), drainage plate (2) is respectively arranged in the widened roadbed area and old roadbed area, the drainage plate (2) arrangement density of the widened roadbed area is greater than the drainage plate (2) arrangement density of old roadbed area.

2. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 1, characterized in that: The positioning base (6) is bolted with a positioning ring (7) above, and a plurality of positioning piles (8) are welded below the positioning base (6).

3. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 2, characterized in that: The positioning pile (8) is rotatably connected with a screw rod (14) inside, the screw rod (14) is threadedly connected with a screw rod nut (15) on one side, the screw rod nut (15) is slidably connected to the inner side of the positioning pile (8), and the positioning pile (8) is fixedly connected with an unfolding bracket (16) below.

4. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 3, characterized in that: The unfolding bracket (16) is fixedly connected with a plurality of L-shaped brackets (18) below, the L-shaped bracket (18) is fixedly connected with a waist hole (19) below, and the waist hole (19) is movably connected with a limiting shaft (22) inside.

5. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 4, characterized in that: The limiting shaft (22) is fixedly connected with a clamping plate (20) at one end, the clamping plate (20) is rotatably connected with a rotating bracket (21) on both sides, the rotating bracket (21) is fixedly connected to the inner wall of the positioning pile (8) at one end, and a plurality of through grooves (17) are formed in the lower side of the positioning pile (8). The clamping plate (20) is slidably connected in the through groove (17).

6. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 5, characterized in that: The positioning pile (8) is rotatably connected with a drive gear (12) and a synchronous gear (13) on one side, the drive gear (12) and the synchronous gear (13) are engaged with each other, and the synchronous gear (13) is fixedly connected to the screw rod (14) at the lower end.

7. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 1, characterized in that: The limiting boss (10) is fixedly connected inside the butt joint (3), the limiting boss (10) is fixedly connected with a filter membrane (11) at one end, and the filter plate (5) is fixedly connected to the bottom of the drainage plate (2).

8. The device for coordinating the settlement of new and old roadbeds based on vacuum preloading according to claim 7, characterized in that: The sealing groove (9) is formed on both sides of the butt joint (3), the mounting plate (4) is fixedly connected to one end of the drainage plate (2), and the other end of the mounting plate (4) is attached to the inside of the butt joint (3) and the sealing groove (9).

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