Roadbed structure of soft soil area

Abstract

The utility model relates to the technical field of roadbed construction, and discloses a roadbed structure of a soft soil area, which comprises a base plate, an insertion cylinder is movably inserted in a sleeve, and a plurality of first springs arranged in a linear array are arranged on the outer surfaces of the left side and the right side of the insertion cylinder; guide plates are fixedly connected to the outer surfaces of the bottom ends of the two extrusion plates, a plurality of second springs in a linear array are arranged on the inner surfaces of the left side and the right side of the sleeve, and a plurality of fixing cones arranged in a linear array are fixedly connected to the ends, away from the center of the interior of the sleeve, of the two connecting plates. A first spring and an extrusion plate are arranged on the outer surface of an insertion cylinder, a guide plate makes contact with a connecting plate in a sleeve, along with downward movement of the guide plate, the extrusion plate on the surface of the insertion cylinder can stably extrude the connecting plate towards the two sides, a fixing cone extends out of the two sides, insertion of the insertion cylinder is easy and convenient, and therefore the convenience of construction operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of subgrade construction, and particularly relates to a subgrade structure in a soft soil area. Background Technique

[0002] The bearing capacity of soft soil is relatively low, and the foundation cannot bear it, resulting in shear failure, the foundation loses stability, bringing large settlement and uneven settlement, damaging the upper building structure. In addition, due to insufficient depth during geological exploration, it is not easy to view the distribution, thickness of the soft soil layer and the specific conditions of some hidden ditches and ponds, which easily causes serious uneven settlement of the building and cracking of structural members. When constructing the subgrade in the soft soil area, its stability needs to be ensured.

[0003] The existing patent (publication number: CN220013746U) discloses a reinforced structure for the foundation of a building in a soft soil area, including a foundation and a reinforced outer pipe. The inner end of the reinforced outer pipe is inserted with a reinforced inner pipe in the middle, and a first fixing structure is arranged between the reinforced inner pipe and the reinforced outer pipe. The top of the reinforced outer pipe and the reinforced inner pipe abuts against the same stabilizing plate. The stabilizing plate is provided with a second fixing structure, and two symmetrically arranged injection holes are opened on the top surface of the stabilizing plate. By setting the reinforced outer pipe, the reinforced inner pipe, the first fixing structure, the second fixing structure, the connecting pipe, the discharge hole, the injection hole, the steel bar, the stabilizing disc, the positioning cone and the sharp barbs, the problem that the reinforced structure for the foundation of a building in a soft soil area is often loose and the foundation is unstable due to the insufficient firm connection with the soft soil during use can be solved.

[0004] The above patent technology squeezes the inner walls of the four movable plates through the reinforced inner pipe, so that the spring can be compressed. At the same time, multiple fixing cones on the movable plate are inserted into the soil outside the reinforced outer pipe. However, in the actual use process, because the inner diameter of the movable plate is smaller than the outer diameter of the reinforced inner pipe, when inserting the reinforced inner pipe into the inside of the reinforced inner pipe, the movable plate will block the reinforced inner pipe. It is necessary to first abut the reinforced inner pipe against the movable plate to one side before the reinforced inner pipe can be inserted into the fixed outer pipe. However, this method has certain inconvenience in the operation process and it is difficult to insert the reinforced inner pipe between multiple movable plates. Therefore, a subgrade structure in a soft soil area is proposed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a subgrade structure in a soft soil area to solve the problems mentioned in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A subgrade structure in a soft soil area, including:

[0008] A substrate, on the bottom outer surface of which several sleeves are uniformly and fixedly connected. On the inner surfaces of the left and right sides of each sleeve, several second springs arranged in a linear array are provided. The other ends of several second springs on the left and right sides are fixedly connected to a connecting plate. One end of each of the two connecting plates away from the center of the sleeve interior is fixedly connected with several fixing cones arranged in a linear array. Circular holes are formed on the outer surfaces of the left and right sides of the sleeve, and the fixing cones are movably arranged inside the circular holes;

[0009] An insertion cylinder, which is movably inserted inside the sleeve. On the outer surfaces of the left and right sides of the insertion cylinder, several first springs arranged in a linear array are provided. The other ends of several first springs on the left and right sides are fixedly connected to a pressing plate.

[0010] Furthermore, a foundation frame is fixedly connected to the top outer surface of the substrate.

[0011] Furthermore, a concrete layer and a steel bar layer are arranged inside the foundation frame. The concrete layer and the steel bar layer are arranged in an alternating manner, and an asphalt isolation layer is arranged above the concrete layer.

[0012] Furthermore, several through holes are formed on the outer surface of the substrate, and several through holes are respectively communicated with the interiors of several sleeves. On the top outer surfaces of several insertion cylinders, limiting disks are fixedly connected, and the diameter of the limiting disk is larger than the aperture of the through hole.

[0013] Furthermore, insertion nails are fixedly connected to the bottom outer surfaces of several sleeves.

[0014] Furthermore, first accommodation grooves are formed on the outer surfaces of the left and right sides of the insertion cylinder, and one ends of several first springs are fixedly connected inside the first accommodation grooves. Second accommodation grooves are formed on the inner surfaces of the left and right sides of the sleeve, and one ends of several second springs are fixedly connected inside the second accommodation grooves.

[0015] Furthermore, the concrete layer is foam concrete, and the steel bar layer is composed of several steel bars arranged vertically and alternately.

[0016] Furthermore, guide plates are fixedly connected to the bottom outer surfaces of the two pressing plates.

[0017] Furthermore, the guide plates are inclined, and the vertical plane at the bottommost end of the guide plate is located between the two connecting plates.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. For the subgrade structure in this soft soil area, by arranging the first spring and the extrusion plate on the outer surface of the insertion cylinder, and contacting the guide plate with the connecting plate inside the sleeve, as the guide plate moves downward, the extrusion plate on the surface of the insertion cylinder can stably extrude the connecting plate to both sides, enabling the fixing cone to extend to both sides. The insertion of the insertion cylinder is relatively simple, thus improving the convenience of construction operations.

[0020] 2. For the subgrade structure in this soft soil area, by arranging the concrete layer and the steel bar layer to be poured alternately, the stability of the concrete layer is improved. And through the asphalt isolation layer, the concrete layer composed of foamed concrete is isolated from the air, preventing the concrete from carbonizing prematurely. Moreover, the asphalt coating can play a waterproof role, avoiding the attenuation of concrete strength caused by water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic exploded view of the substrate and the insertion cylinder of the present utility model;

[0022] Figure 2 It is a schematic front sectional plane structure view of the present utility model;

[0023] Figure 3 For the present utility model Figure 2 The enlarged structure view at A in it;

[0024] Figure 4 It is a schematic view of the insertion cylinder and its related structures of the present utility model;

[0025] Figure 5 It is a schematic view of the internal structure of the sleeve of the present utility model.

[0026] In the figure: 1. Substrate; 2. Sleeve; 3. Insertion cylinder; 4. First spring; 5. Extrusion plate; 6. Guide plate; 7. Round hole; 8. Second spring; 9. Connecting plate; 10. Fixing cone; 11. Foundation frame; 12. Concrete layer; 13. Asphalt isolation layer; 14. Insertion nail; 15. Limiting disc; 16. Steel bar layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following provides a detailed description of the present utility model, and clearly and completely describes the technical solutions in the embodiments of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "a plurality" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. It should also be understood that the term "and / or" used in the description of the specification and the appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0030] In addition, in the description of the specification and the appended claims of the present application, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0032] Please refer to Figure 1 , the present utility model provides a technical solution:

[0033] A subgrade structure in a soft soil area, including a base plate 1. A plurality of sleeves 2 are uniformly fixedly connected to the outer surface of the bottom of the base plate 1. An inserting cylinder 3 is movably inserted into the inside of the sleeve 2. A plurality of first springs 4 arranged in a linear array are provided on the outer surfaces of the left and right sides of the inserting cylinder 3. The other ends of the plurality of first springs 4 on the left and right sides are fixedly connected to a pressing plate 5. Guide plates 6 are fixedly connected to the outer surfaces of the bottoms of the two pressing plates 5.

[0034] A plurality of second springs 8 arranged in a linear array are provided on the inner surfaces of the left and right sides of the sleeve 2. The other ends of the plurality of second springs 8 on the left and right sides are fixedly connected to a connecting plate 9. A plurality of fixing cones 10 arranged in a linear array are fixedly connected to one end of each of the two connecting plates 9 away from the center of the inside of the sleeve 2. Circular holes 7 are formed in the outer surfaces of the left and right sides of the sleeve 2. The fixing cones 10 are movably arranged inside the circular holes 7.

[0035] In this embodiment, the insertion cylinder 3 is aligned with the through hole on the substrate 1 and inserted into the sleeve 2. When it is inserted into the sleeve 2 and contacts the top end of the connecting plate 9, the guide plate 6 is squeezed by the connecting plate 9, causing the first spring 4 to compress. The extrusion plate 5 moves accordingly. As the guide plate 6 is inserted, the extrusion plate 5 fits against the surface of the insertion cylinder 3. When the extrusion plate 5 contacts the connecting plate 9, the extrusion plate 5 squeezes the connecting plate 9 to both sides, causing the second spring 8 to compress, and the fixed cone 10 to protrude from the round hole 7 and insert into the interior of the soft soil on both sides, thereby improving the stability of the sleeve 2 and facilitating the insertion of the insertion cylinder 3 into the interior of the sleeve 2, enabling it to directly squeeze the connecting plate 9 and causing the fixed cone 10 to move laterally, improving the convenience of construction operations.

[0036] The outer surface of the top of the substrate 1 is fixedly connected with a foundation frame 11. The interior of the foundation frame 11 is provided with a concrete layer 12 and a steel bar layer 16. The concrete layer 12 and the steel bar layer 16 are arranged in an interleaved manner. Above the concrete layer 12 is provided an asphalt isolation layer 13. In this embodiment, by placing the steel bar layer 16 composed of a plurality of mutually perpendicular steel bars above the concrete and then pouring the concrete, interleaved pouring is carried out to improve the stability between the concretes. Then, an asphalt isolation layer 13 is provided at the topmost of the concrete layer 12, isolating the concrete layer 12 composed of foam concrete from the air, preventing the concrete from carbonizing prematurely, and the asphalt coating can play a waterproof role, avoiding the attenuation of concrete strength caused by water.

[0037] The outer surface of the substrate 1 is provided with a plurality of through holes, and the plurality of through holes are respectively communicated with the interiors of the plurality of sleeves 2. The outer surfaces of the tops of the plurality of insertion cylinders 3 are all fixedly connected with limit disks 15, and the diameter of the limit disks 15 is greater than the aperture of the through holes. In this embodiment, after the insertion cylinder 3 is inserted into the interior of the sleeve 2, the limit disk 15 is lapped on the surface of the substrate 1 at the position of the through hole.

[0038] The outer surfaces of the bottoms of the plurality of sleeves 2 are all fixedly connected with insertion nails 14. In this embodiment, after the insertion holes are opened, the insertion nails 14 are provided to facilitate the insertion of the sleeves 2 into the insertion holes in the soft soil, preliminarily positioning the sleeves 2 and increasing the stability of the sleeves 2.

[0039] On the outer surfaces of the left and right sides of the insertion cylinder 3, first accommodation grooves are provided. One ends of a plurality of the first springs 4 are fixedly connected inside the first accommodation grooves. On the inner surfaces of the left and right sides of the sleeve 2, second accommodation grooves are provided. One ends of a plurality of the second springs 8 are fixedly connected inside the second accommodation grooves. In this embodiment, the first springs 4 are accommodated by the first accommodation grooves, and the second springs 8 are accommodated by the second accommodation grooves, preventing the first springs 4 and the second springs 8 from deforming obliquely.

[0040] The concrete layer 12 is lightweight concrete, and the steel bar layer 16 is composed of a plurality of steel bars arranged vertically and crosswise. In this embodiment, lightweight concrete has the characteristic of light weight, and its dry volume density is 300 - 1600 kg / m3, which is about 1 / 5 - 1 / 8 of ordinary cement concrete, thus effectively reducing the overall load of the building. For a foundation with low bearing capacity, it is convenient to build a roadbed on soft soil foundation. In addition, due to the good integrity of lightweight concrete, it can be cast in place on site, combined tightly with the main body, without leaving separation joints and vent pipes. And the steel bar layer 16 is formed by a plurality of steel bars arranged vertically and crosswise to enhance its stability during use.

[0041] The guide plate 6 is inclined. The vertical plane at the bottommost end of the guide plate 6 is located between the two connecting plates 9. In this embodiment, with the above technical solution, when the guide plate 6 moves to the position of the top end of the connecting plate 9, the guide plate 6 can be inserted between the two connecting plates 9. And with the inclined guide plate 6, as the guide plate 6 moves downward, the distance between the two sides of the guide plate 6 gradually increases, enabling the first spring 4 to be compressed until the pressing plate 5 contacts the connecting plate 9 and presses the connecting plate 9 to both sides.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roadbed structure in a soft soil area, characterized in that ,include: A base plate, wherein a plurality of sleeves are evenly fixedly connected to the outer surface of the bottom of the base plate, a plurality of second springs in a linear array are arranged on the inner surfaces of the left and right sides of the sleeve, the other ends of the plurality of second springs on the left and right sides are fixedly connected to connecting plates, and a plurality of fixed cones arranged in a linear array are fixedly connected to one end of the two connecting plates away from the inner center of the sleeve, and circular holes are opened on the outer surfaces of the left and right sides of the sleeve, and the fixed cones are movably arranged inside the circular holes; The insert tube is movably inserted in the interior of the sleeve, and the outer surfaces of the left and right sides of the insert tube are both provided with a plurality of first springs arranged in a linear array, and the other ends of the plurality of first springs on the left and right sides are fixedly connected with an extrusion plate.

2. A roadbed structure in soft soil area according to claim 1, characterized in that: The top outer surface of the base plate is fixedly connected with a foundation frame.

3. A roadbed structure in soft soil area according to claim 2, characterized in that: A concrete layer and a steel bar layer are arranged inside the foundation frame, the concrete layer and the steel bar layer are arranged in a staggered manner, and an asphalt isolation layer is arranged above the concrete layer.

4. The roadbed structure in soft soil area according to claim 1, characterized in that: The outer surface of the substrate is provided with a plurality of through holes, and the plurality of through holes are respectively connected with the interior of a plurality of sleeves, and the top outer surfaces of the plurality of inserts are fixedly connected with a limiting disk, and the diameter of the limiting disk is larger than the aperture of the through hole.

5. The roadbed structure in soft soil area according to claim 1, characterized in that: The outer surfaces of the bottoms of the plurality of sleeves are fixedly connected with pins.

6. The roadbed structure in soft soil area according to claim 1, characterized in that: The left and right outer surfaces of the insert are each provided with a first receiving groove, and one end of a plurality of the first springs is fixedly connected to the inside of the first receiving groove; the left and right inner surfaces of the sleeve are each provided with a second receiving groove, and one end of a plurality of the second springs is fixedly connected to the inside of the second receiving groove.

7. The roadbed structure in soft soil area according to claim 3, characterized in that: The concrete layer is foam concrete, and the steel bar layer is composed of a plurality of steel bars arranged vertically and staggered.

8. The roadbed structure in soft soil area according to claim 1, characterized in that: The outer surfaces of the bottom ends of the two extrusion plates are fixedly connected with guide plates.

9. The roadbed structure in soft soil area according to claim 8, characterized in that: The guide plate is arranged in an inclined manner, and the vertical surface at the bottom end of the guide plate is located between the two connecting plates.

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