Open caisson opening soil body reinforcing system

Abstract

The utility model relates to the technical field of opening soil reinforcement, in particular to an open caisson opening soil reinforcement system which comprises an open caisson, a positioning ring sleeved on the outer ring of the open caisson, a reinforcing ring arranged on the lower surface of the positioning ring, a lantern ring arranged on the top of the positioning ring, and an annular groove arranged in the lantern ring and corresponding to the open caisson. A plurality of through holes are formed in the upper surface of the positioning ring close to the edge, positioning nails are arranged in the through holes, a limiting cylinder is arranged on the lower surface of the reinforcing ring close to the inner side edge, and a conical ring is arranged at the bottom of the limiting cylinder; according to the open caisson opening soil body reinforcing system, the positioning ring is arranged to be matched with the lantern ring, the open caisson is tightly sleeved with the positioning ring under the cooperation of the annular groove, the soil body around the open caisson is reinforced and protected under the cooperation of the reinforcing ring and the limiting cylinder, and therefore the opening is prevented from collapsing.

Description

Technical Field

[0001] This utility model relates to the field of soil reinforcement technology for tunnel entrances, specifically a soil reinforcement system for caisson entrances. Background Technology

[0002] Caisson foundation reinforcement is a foundation reinforcement method that mainly uses a reinforced concrete caisson to bear the foundation load downwards, thereby stabilizing the foundation below the caisson and solving problems such as local foundation settlement and cracks.

[0003] Utility model patent application CN218175809U discloses a grouting reinforcement device for a caisson opening, comprising: a base, two rectangular plates fixedly connected to the upper surface of the base, a fixing plate fixedly connected to the upper surfaces of the two rectangular plates, two threaded rods rotatably connected between the base and the fixing plate, connecting blocks threadedly connected to the sides of the threaded rods, a circular hole opened at the center of the upper surface of the base, a grouting cylinder fixedly connected to the sides of the two connecting blocks facing each other, the grouting cylinder passing through the circular hole, a feeding pipe fixedly connected to the side of the grouting cylinder, and a discharge valve provided at the lower end of the grouting cylinder;

[0004] The above technical solution, through the above structure, by setting up a rotating motor, synchronous pulley and synchronous belt, allows the rotating motor to drive two threaded rods to rotate synchronously. The synchronous rotation of the two threaded rods drives the side connecting block and the grouting cylinder to move up and down, which facilitates grouting and reinforcement of the caisson opening. However, when reinforcing the soil at the caisson opening, it cannot stably reinforce the area around the caisson opening, thus reducing the squeezing damage to the surrounding soil at the opening. Utility Model Content

[0005] The purpose of this invention is to provide a soil reinforcement system for caisson openings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A soil reinforcement system for a caisson opening includes a caisson, a positioning ring fitted around the outer edge of the caisson, a reinforcing ring on the lower surface of the positioning ring, a collar on the top of the positioning ring, an annular groove inside the collar corresponding to the caisson, several perforations near the edge of the upper surface of the positioning ring, each perforation containing a positioning nail, a limiting cylinder near the inner edge of the lower surface of the reinforcing ring, and a conical ring at the bottom of the limiting cylinder.

[0008] Preferably, the top of the positioning ring is welded and fixed to the bottom of the collar, and a plurality of support blocks are provided at the junction of the collar and the positioning ring. The cross-section of the support block is triangular. One side of the support block is welded and fixed to the outer wall of the collar, and the other side of the support block is welded and fixed to the top of the positioning ring.

[0009] In this invention, the collar, with the cooperation of the support block, increases the stability of the combination of the positioning ring and the collar, and increases the resistance to compression.

[0010] Preferably, the inner diameter of the annular groove is adapted to the outer diameter of the caisson, and the top of the caisson is inserted into the annular groove.

[0011] In this invention, the annular groove helps to ensure a tight fit between the collar and the caisson, increasing the stability of the installation.

[0012] Preferably, the reinforcing ring is frustum-shaped, and the top of the reinforcing ring is bonded and fixed to the bottom of the positioning ring.

[0013] In this invention, the reinforcement ring further increases the stability of the combination between the positioning ring and the soil around the caisson, increases the contact area, and thus improves the stability of the caisson opening reinforcement.

[0014] Preferably, the inner diameter of the perforation is adapted to the outer diameter of the positioning pin, the top of each positioning pin is provided with a cap, and the bottom of the positioning pin is conical.

[0015] In this invention, multiple positioning pins work together and pass through corresponding holes, while the top cap helps to restrict the position of the positioning pins on the positioning ring, thereby fixing the position of the positioning ring relative to the soil.

[0016] Preferably, the inner diameter of the limiting cylinder is larger than the outer diameter of the caisson, the top of the limiting cylinder is welded and fixed to the bottom of the reinforcing ring, and the top of the conical ring is welded and fixed to the bottom of the limiting cylinder.

[0017] In this invention, the limiting cylinder, in conjunction with the conical ring, helps to connect and fit with the soil around the caisson, increasing the stability of the installation. With the help of the limiting cylinder, the soil around the caisson is reinforced and protected, reducing the impact of soil compression on the opening and reducing the impact of opening collapse.

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

[0019] 1. This utility model, by setting a positioning ring and a collar to cooperate, is tightly fitted onto the caisson with the cooperation of the annular groove. With the cooperation of the reinforcing ring and the limiting cylinder, the soil around the caisson is reinforced and protected, reducing the impact of soil compression on the size of the caisson opening. With the cooperation of multiple positioning nails, the stability of the positioning ring and the soil installation is increased.

[0020] 2. This utility model increases the stability of the combined support of the collar and positioning ring by setting multiple support blocks. With the cooperation of the conical ring, it helps the limiting cylinder to quickly cut into and connect with the soil. The top cap helps to limit the position of the top of the positioning nail, thus achieving the stability of the positioning ring and the soil installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the combined structure of the positioning pin and positioning ring of this utility model;

[0023] Figure 3 This is a bottom view of the reinforcing ring of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Caisson;

[0027] 2. Positioning ring; 20. Perforation; 21. Support block; 22. Collar; 220. Annular groove;

[0028] 3. Reinforcement ring;

[0029] 4. Limiting cylinder; 40. Conical ring;

[0030] 5. Positioning pin; 50. Top cap. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 This embodiment provides a technical solution:

[0033] A soil reinforcement system for a caisson opening includes a caisson 1. A positioning ring 2 is fitted around the outer ring of the caisson 1. The top of the positioning ring 2 is welded and fixed to the bottom of a collar 22. Several support blocks 21 are provided at the junction of the collar 22 and the positioning ring 2. The cross-section of the support block 21 is triangular. One side of the support block 21 is welded and fixed to the outer wall of the collar 22, and the other side of the support block 21 is welded and fixed to the top of the positioning ring 2.

[0034] In this invention, the collar 22, in cooperation with the support block 21, increases the stability of the combination of the positioning ring 2 and the collar 22, and increases the resistance to compression.

[0035] Furthermore, a reinforcing ring 3 is provided on the lower surface of the positioning ring 2, and a collar 22 is provided on the top of the positioning ring 2. An annular groove 220 is provided inside the collar 22 at the position corresponding to the caisson 1. The inner diameter of the annular groove 220 is adapted to the outer diameter of the caisson 1, and the top of the caisson 1 is inserted into the annular groove 220.

[0036] In this invention, the annular groove 220 helps the collar 22 to fit tightly with the caisson 1, increasing the stability of the installation.

[0037] Specifically, the upper surface of the positioning ring 2 has several through holes 20 near the edge, and each through hole 20 is provided with a positioning pin 5. The inner diameter of the through hole 20 is adapted to the outer diameter of the positioning pin 5. Each positioning pin 5 is provided with a top cap 50, and the bottom of the positioning pin 5 is conical.

[0038] In this invention, multiple positioning pins 5 work together and pass through corresponding through holes 20. With the help of the top cap 50, the positioning pins 5 are positioned on the positioning ring 2, thereby fixing the position of the positioning ring 2 and the soil.

[0039] It should be noted that a limiting cylinder 4 is provided on the lower surface of the reinforcing ring 3 near the inner edge, and a conical ring 40 is provided at the bottom of the limiting cylinder 4.

[0040] Furthermore, the reinforcing ring 3 is shaped like a frustum, and the top of the reinforcing ring 3 is bonded and fixed to the bottom of the positioning ring 2.

[0041] In this invention, with the cooperation of the reinforcing ring 3, the stability of the combination of the positioning ring 2 and the soil around the caisson 1 is further increased, the contact area is increased, and thus the stability of the caisson 1 opening reinforcement is improved.

[0042] It is worth noting that the inner diameter of the limiting cylinder 4 is larger than the outer diameter of the caisson 1, the top of the limiting cylinder 4 is welded and fixed to the bottom of the reinforcing ring 3, and the top of the conical ring 40 is welded and fixed to the bottom of the limiting cylinder 4.

[0043] In this utility model, the limiting cylinder 4, in cooperation with the conical ring 40, helps to connect and cooperate with the soil around the caisson 1, increasing the stability of the installation. With the cooperation of the limiting cylinder 4, the soil around the caisson 1 is reinforced and protected, reducing the impact of soil compression on the opening and reducing the impact of opening collapse.

[0044] In this embodiment, when using the caisson opening soil reinforcement system, the user first combines and fixes the collar 22 and the positioning ring 2 with multiple support blocks 21, and increases the contact area between the positioning ring 2 and the soil with the cooperation of the reinforcing ring 3. The annular groove 220 is inserted and fitted with the top of the caisson 1 to increase the stability of the combination installation of the positioning ring 2 and the caisson 1. The top of the limiting cylinder 4 with the conical ring 40 is combined and fixed with the positioning ring 2. With the cooperation of the conical ring 40, it is easy for the limiting cylinder 4 to be quickly inserted and fitted with the soil around the caisson 1, increasing the reinforcement and protection of the soil around the caisson 1 and reducing the impact of soil compression on the deformation of the opening.

[0045] When the soil around the caisson 1 is compressed, the reinforcing ring 3 and the positioning ring 2 work together to stabilize and reinforce the area around the caisson 1. Under the action of the limiting cylinder 4, the soil's compression deformation on the caisson 1 is reduced. With the cooperation of multiple positioning nails 5 with top caps 50, the position of the positioning ring 2 is fixed.

Claims

1. A soil reinforcement system for a caisson opening, comprising a caisson (1), wherein a positioning ring (2) is fitted around the outer edge of the caisson (1), and a reinforcing ring (3) is provided on the lower surface of the positioning ring (2), characterized in that: The top of the positioning ring (2) is provided with a collar (22), and an annular groove (220) is provided inside the collar (22) corresponding to the caisson (1). Several perforations (20) are provided on the upper surface of the positioning ring (2) near the edge, and positioning pins (5) are provided in each perforation (20). A limiting cylinder (4) is provided on the lower surface of the reinforcing ring (3) near the inner edge, and a conical ring (40) is provided at the bottom of the limiting cylinder (4).

2. The soil reinforcement system for the caisson entrance according to claim 1, characterized in that: The top of the positioning ring (2) is welded and fixed to the bottom of the collar (22). Several support blocks (21) are provided at the junction of the collar (22) and the positioning ring (2). The cross-section of the support block (21) is triangular. One side of the support block (21) is welded and fixed to the outer wall of the collar (22), and the other side of the support block (21) is welded and fixed to the top of the positioning ring (2).

3. The soil reinforcement system for the caisson entrance according to claim 1, characterized in that: The inner diameter of the annular groove (220) is adapted to the outer diameter of the caisson (1), and the top of the caisson (1) is inserted into the annular groove (220).

4. The soil reinforcement system for caisson entrances according to claim 1, characterized in that: The reinforcing ring (3) is frustum shaped, and the top of the reinforcing ring (3) is bonded and fixed to the bottom of the positioning ring (2).

5. The soil reinforcement system for caisson openings according to claim 1, characterized in that: The inner diameter of the perforation (20) is adapted to the outer diameter of the positioning pin (5), and the top of each positioning pin (5) is provided with a top cap (50), and the bottom of the positioning pin (5) is conical.

6. The soil reinforcement system for caisson openings according to claim 1, characterized in that: The inner diameter of the limiting cylinder (4) is larger than the outer diameter of the caisson (1). The top of the limiting cylinder (4) is welded and fixed to the bottom of the reinforcing ring (3). The top of the conical ring (40) is welded and fixed to the bottom of the limiting cylinder (4).

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