Deep-buried wall type pile plate structure

Abstract

The utility model discloses a deeply-buried wall type pile plate structure, and relates to the technical field of rail transit. In order to mainly solve the problems that the existing railway subgrade structure generally generates larger vibration to induce the vibration of the ground and buildings and influence the surrounding living environment, the utility model provides the following technical scheme: the railway subgrade structure comprises a soil retaining assembly, a supporting assembly connected to the bottom of the soil retaining assembly and a vibration reduction mechanism arranged at the upper part of the soil retaining assembly; the soil retaining assembly comprises a soil retaining plate and anti-vibration pads which are oppositely arranged and matched with each other on the upper side and the lower side of the soil retaining plate, and buckles are arranged on the opposite sides of the anti-vibration pads. Anti-vibration pad mounting grooves are formed in the upper side and the lower side of the soil retaining plate; and the buckles of the anti-vibration pad are respectively embedded into the anti-vibration pad mounting grooves so as to fix the anti-vibration pad. The utility model has the beneficial effects that the settlement of the embankment can be prevented, the ground vibration induced by a train can be controlled, and the influence of a railway on the surrounding environment and a residential area is reduced.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to a deeply embedded wall-type pile-slab structure. Background Technology

[0002] Pile-wall support systems come in various forms and are still under innovation and development, with a wide range of applications. Pile-wall support is currently the most widely used support method in foundation pit engineering. In actual projects, the form of the pile-wall support structure should be determined through a comprehensive technical and economic comparison, based on factors such as site engineering geology and hydrogeology, construction conditions, environmental conditions, foundation pit usage conditions, and construction scale.

[0003] The two most common forms of pile-wall support structures are pile wall support structures and diaphragm wall support structures. Pile wall support structures are generally continuous pile walls composed of bored piles, manually excavated piles, steel sheet piles, and reinforced concrete sheet piles. Among them, diaphragm wall support structures are widely used in the field of rail transit railway subgrades because they are retaining walls composed of cast-in-place or precast reinforced concrete diaphragm walls, and the walls have self-proof and water-stopping functions.

[0004] During high-speed train operation, the vibrations caused by the moving axle load and dynamic wheel-rail interaction are transmitted to the ground via the track and embankment, resulting in vibrations in nearby buildings. Excessive vibration can reduce the quality of life for residents, cause malfunctions in precision instruments within buildings, and even damage the buildings themselves. Traditional railway subgrade structures, which are primarily composed of subgrades without vibration damping features, typically generate such significant vibrations, impacting daily life and causing damage to both internal and external materials in buildings. Furthermore, the transverse reinforcement bars in the pile structure of traditional railway subgrades do not provide the necessary stress relief. To control railway-induced ground vibrations, reduce the impact on the surrounding environment, and simultaneously control subgrade settlement and achieve reinforcement, a novel railway subgrade reinforcement structure needs to be designed. Utility Model Content

[0005] The purpose of this utility model is to provide a deep-buried wall-type pile-slab structure to solve the problem that existing railway subgrade structures usually generate large vibrations, which induce vibrations in the ground and buildings, affecting the surrounding living environment.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A deep-buried wall-type pile-slab structure includes: a retaining component, a support component connected to the bottom of the retaining component, and a vibration damping mechanism disposed on the upper part of the retaining component.

[0008] The retaining component includes a retaining plate and vibration damping pads that are respectively arranged opposite to each other and cooperate with each other on the upper and lower sides of the retaining plate. The vibration damping pads are provided with buckles on opposite sides.

[0009] The retaining plate consists of several retaining sub-plates, which are connected in sequence to form a retaining plate. The upper and lower sides of the retaining plate are provided with vibration damping pad installation grooves.

[0010] The buckles of the vibration damping pads are inserted into the mounting slots of the vibration damping pads to fix the vibration damping pads.

[0011] The beneficial effects of adopting the above technical solution are as follows: the vibration damping pads set on the retaining component can partially reduce the ground vibration induced by the train on the ground. The vibration damping mechanism set in the retaining component can further dampen the vibration when the train passes over the top of the retaining component, while reducing the vibration through the vibration damping pads. The deeply buried support component set at the bottom of the retaining component can continue to transmit the weakened vibration load to a deeper position below the ground surface.

[0012] Furthermore, the vibration damping mechanism includes a vibration isolation plate disposed between the track and the retaining plate, a connecting rod connected to the bottom of the vibration isolation plate, a vibration damping component disposed at the bottom of the connecting rod, and a sliding component mounting groove for mounting the vibration damping component.

[0013] Furthermore, the vibration damping assembly includes a damping element disposed within a vibration damping assembly mounting slot, the damping element supporting a connecting rod within the vibration damping assembly mounting slot.

[0014] Furthermore, the damping component includes a connecting plate connected to the bottom of the connecting rod, a telescopic slide rod disposed at the bottom of the connecting plate, and an elastic element sleeved on the telescopic slide rod.

[0015] Furthermore, vibration isolation baffles are provided on both sides of the vibration isolation plate to prevent the vibration isolation plate from deviating.

[0016] Furthermore, the retaining plate is provided with a vibration isolation plate mounting groove, and the vibration isolation plate is installed in the vibration isolation plate mounting groove.

[0017] Furthermore, the vibration damping pads on the top of the retaining plate have openings corresponding to the vibration damping pad mounting slots and the vibration isolation plate baffle mounting slots, respectively.

[0018] Furthermore, the support assembly includes a pile wall supported at the bottom of the retaining assembly and support members disposed on opposite sides of the pile wall.

[0019] Furthermore, the support includes a waterproof and permeable layer disposed opposite to each other, steel bars disposed between the waterproof and permeable layers, a reverse osmosis layer disposed at the ends of the steel bars, and a soil isolation plate disposed between the reverse osmosis layer and the pile wall.

[0020] Furthermore, drainage pipes are installed at intervals inside the soil isolation plate, and the drainage pipes are connected to the reverse osmosis layer.

[0021] This utility model has the following beneficial effects:

[0022] This invention can partially reduce ground vibration induced by trains by setting vibration damping pads. The vibration damping mechanism set in the retaining component can further dampen vibration when the train passes over the top of the retaining component. The deeply buried support component set at the bottom of the retaining component can then transmit the weakened vibration load to a deeper position below the ground surface.

[0023] This structure consists of a horizontal slab connected to two rows of identical, perpendicular piles. These piles are a continuous structure extending along the railway line, known as sheet piles or pile walls. Because this wall-type sheet pile structure strengthens the railway subgrade and transfers train loads deeper below the surface, it not only prevents embankment settlement but also controls train-induced ground vibrations, reducing the railway's impact on the surrounding environment and residential areas. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a structural schematic diagram of the retaining wall.

[0026] Figure 3 This is a schematic diagram of the vibration damping pad structure;

[0027] Figure 4 Left view of the vibration damping pad;

[0028] Figure 5 for Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 6 for Figure 1 A magnified view of a section at point B in the middle;

[0030] Figures 1 to 6 The reference numerals in the attached drawings represent: 1-retaining component; 2-support component; 3-vibration damping mechanism; 4-retaining plate; 5-vibration damping pad; 21-pile wall; 22-support component; 221-waterproof and permeable layer; 222-reinforcing steel; 223-reverse osmosis layer; 224-soil isolation plate; 225-drainage pipe; 31-vibration isolation plate; 32-connecting rod; 33-damping component; 34-vibration isolation plate baffle; 41-retaining sub-plate; 42-vibration damping pad mounting groove; 43-vibration isolation plate baffle mounting groove; 44-damping component mounting groove; 221-waterproof and permeable layer; 222-reinforcing steel; 223-reverse osmosis layer; 224-soil isolation plate; 225-drainage pipe. Detailed Implementation

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

[0032] Example 1

[0033] refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 This is a schematic diagram of a deep-buried wall-type pile-slab structure according to this embodiment. Its purpose is to solve the problem that existing railway subgrade structures usually generate large vibrations, which induce vibrations in the ground and buildings, affecting the surrounding living environment. The specific structure of this embodiment will be described in detail below.

[0034] Please refer to Figure 1-6 This utility model provides a deep-buried wall-type pile-slab structure, including a retaining component 1, a support component 2, and a vibration damping mechanism 3. The support component 2 is connected to the bottom of the retaining component 1, and the vibration damping mechanism 3 is disposed on the upper part of the retaining component 1. The retaining component 1 is used to house the vibration damping mechanism 3, the support component 2 is used to support the part above the retaining component 1, and the vibration damping mechanism 3 is used to reduce the vibration when a train passes over the track.

[0035] The retaining component 1 includes a retaining plate 4 and vibration damping pads 5. The vibration damping pads 5 are arranged opposite each other and cooperate with each other on the upper and lower sides of the retaining plate 4. The vibration damping pads 5 can be made of rubber. Several buckles 51 are provided on one opposite side of the vibration damping pads 5. The retaining plate 4 includes several retaining sub-plates 41. The several retaining sub-plates 41 are connected in sequence to form the retaining plate 4. Vibration damping pad mounting grooves 42 are opened on the upper and lower sides of the retaining plate 4. The buckles 51 of the vibration damping pads 5 are respectively embedded in the vibration damping pad mounting grooves 42 opened on the upper side of the retaining plate 4 to fix the vibration damping pads 5.

[0036] Vibration isolation plate 31 is provided with vibration isolation plate baffles 34 on both sides, which are used to prevent the vibration isolation plate 31 from deviating. The retaining plate 4 is provided with vibration isolation plate baffle mounting grooves 43, and the vibration isolation plate baffles 34 have a U-shaped structure and are installed in the vibration isolation plate baffle mounting grooves 43.

[0037] Specifically, the buckle 51 on the vibration damping pad 5 has a T-shaped structure, and the buckle 51 can be firmly inserted into the vibration damping pad mounting groove 42. The vibration damping pad 5 on the top of the retaining plate 4 has openings that correspond to the vibration damping pad mounting groove 42 and the vibration isolation plate baffle mounting groove 43, respectively.

[0038] Example 2

[0039] refer to Figures 1-2 , Figure 5 This is a schematic diagram of the vibration damping mechanism in this embodiment. Its purpose is to solve the problem that existing railway subgrade structures usually generate large vibrations, which induce vibrations in the ground and buildings, affecting the surrounding living environment. Based on Embodiment 1, this embodiment provides a further solution for the vibration damping mechanism. The specific structure of the vibration damping mechanism in this embodiment will be described in detail below.

[0040] The vibration damping mechanism 3 includes a vibration isolation plate 31, a connecting rod 32, and a vibration damping component.

[0041] Specifically, the vibration isolation plate 31 is set between the track and the retaining plate 4, the connecting rod 32 is connected to the bottom of the vibration isolation plate 31, the vibration damping component is set at the bottom of the connecting rod 32, and the vibration damping component is set in the sliding component mounting groove 44.

[0042] In this embodiment, the vibration damping component includes a vibration damping element 33, which includes a connecting plate 331 connected to the bottom of the connecting rod 32, a telescopic slide rod 332 disposed at the bottom of the connecting plate 331, and an elastic element 333 sleeved on the telescopic slide rod 332.

[0043] Specifically, the connecting plate 331, the telescopic slide bar 332, and the elastic element 333 are arranged in the vibration damping component mounting groove 44. The vibration damping element 33 supports the connecting rod 32 in the vibration damping component mounting groove 44, and the vibration reduction is achieved by the up and down movement of the telescopic slide bar 332 and the elastic element 333.

[0044] Example 3

[0045] refer to Figure 1 and Figure 6 This is a structural schematic diagram of the support component in this embodiment. Its purpose is to solve the problem that the steel bars and pile walls of the support part in the existing railway subgrade structure are difficult to achieve joint stress. Based on Embodiment 1, this embodiment provides a further solution. The specific structure of the support component in this embodiment will be described in detail below.

[0046] The support assembly 2 includes a pile wall 21 supported at the bottom of the retaining assembly 1 and support members 22 arranged on both sides of the pile wall 21.

[0047] Specifically, the support component 22 includes a waterproof and permeable layer 221, reinforcing bars 222, a reverse osmosis layer 223, a soil isolation plate 224, and a drainage pipe 225. The waterproof and permeable layer 221 is arranged opposite to each other at the top and bottom. The reinforcing bars 222 are arranged dispersedly and at intervals between the waterproof and permeable layers 221. The reinforcing bars 222 are surrounded by soil. The reverse osmosis layer 223 is arranged at the end of the reinforcing bars 222, and the soil isolation plate 224 is arranged between the reverse osmosis layer 223 and the pile wall 21.

[0048] In this embodiment, multiple drainage pipes 225 are provided at intervals inside the soil isolation plate 224, and the drainage pipes 225 are connected to the reverse osmosis layer 223.

[0049] Specifically, by filling the space between the pile wall 21 structure and the reinforcing bar 222 with a filling material, such as fine aggregate concrete with a grade of at least C20, the stress and deformation generated by the reinforcing bar 222 in the later stage can be effectively transferred to the pile wall 21 structure. This achieves coordinated stress and deformation of the reinforcing bar 222 and the pile wall 21 structure, which can give full play to the stress-bearing capacity of the reinforcing bar 222 and limit the large deformation of the reinforcing bar 222 in the later stage, thus optimizing the pile wall 21 structure.

[0050] In this embodiment, the drainage pipe 225 and the waterproof seepage layer 221 ensure that the infiltrated water of the reverse osmosis layer 223 can be effectively discharged and that water does not accumulate inside the backfill soil.

[0051] The implementation steps of this utility model are as follows:

[0052] In practical applications, this utility model is referenced. Figures 1-6 First, the pile wall 21 and the support member 22 are buried deep in the soil. The vibration damping pad 5 is installed on the upper and lower sides of the retaining plate 4. The vibration damping mechanism 3 is installed in the retaining component 1. When the train passes through the track, the downward pressure of the track is transmitted to the vibration isolation plate 31, the support connecting rod 32 and the vibration damping component installed at the bottom. The vibration energy is dispersed by the up and down movement of the telescopic sliding rod 332 and the elastic member 333 in the vibration damping component, thereby reducing the vibration.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A deeply embedded wall-type pile-slab structure, characterized in that, include: The retaining component (1), the support component (2) connected to the bottom of the retaining component (1), and the vibration damping mechanism (3) set on the top of the retaining component (1); The retaining component (1) includes a retaining plate (4) and vibration damping pads (5) respectively arranged opposite to each other and cooperating with each other on the upper and lower sides of the retaining plate (4). The vibration damping pads (5) are provided with buckles (51) on one opposite side. The retaining plate (4) includes several retaining sub-plates (41), which are connected in sequence to form the retaining plate (4). The upper and lower sides of the retaining plate (4) are provided with vibration damping pad mounting grooves (42). The buckles (51) of the damping pad (5) are respectively embedded in the damping pad mounting groove (42) to fix the damping pad (5).

2. The deep wall pile plate structure according to claim 1, wherein The vibration damping mechanism (3) includes a vibration isolation plate (31) disposed between the track and the retaining plate (4), a connecting rod (32) connected to the bottom of the vibration isolation plate (31), a vibration damping component disposed at the bottom of the connecting rod (32), and a vibration damping component mounting groove (44) for mounting the vibration damping component.

3. The deep wall pile plate structure according to claim 2, wherein The vibration damping assembly includes a damping element (33) disposed in the vibration damping assembly mounting groove (44), and the damping element (33) supports the connecting rod (32) in the vibration damping assembly mounting groove (44).

4. The deep wall pile plate structure according to claim 3, wherein The damping component (33) includes a connecting plate (331) connected to the bottom of the connecting rod (32), a telescopic slide rod (332) disposed at the bottom of the connecting plate (331), and an elastic element (333) sleeved on the telescopic slide rod (332).

5. The deep wall pile panel structure according to claim 2, wherein The vibration isolation plate (31) is provided with vibration isolation plate baffles (34) on both sides to prevent the vibration isolation plate (31) from deviating.

6. The deep wall pile plate structure according to claim 5, wherein The retaining plate (4) is provided with a vibration isolation plate mounting groove (43), and the vibration isolation plate (34) is installed in the vibration isolation plate mounting groove (43).

7. The deep wall pile panel structure according to claim 6, wherein The vibration damping pad (5) on the top of the retaining plate (4) has openings corresponding to the vibration damping pad mounting groove (42) and the vibration isolation plate baffle mounting groove (43), respectively.

8. The deep wall pile panel structure according to claim 5, wherein The support assembly (2) includes a pile wall (21) supported at the bottom of the retaining assembly (1) and support members (22) arranged on both sides of the pile wall (21).

9. The deep wall pile panel structure according to claim 8, wherein The support member (22) includes a waterproof and permeable layer (221) disposed opposite to each other, a steel bar (222) disposed between the waterproof and permeable layers (221), a reverse osmosis layer (223) disposed at the end of the steel bar (222), and a soil isolation plate (224) disposed between the reverse osmosis layer (223) and the pile wall (21).

10. The deep wall pile panel structure according to claim 9, wherein Drainage pipes (225) are provided at intervals inside the soil isolation plate (224), and the drainage pipes (225) are connected to the reverse osmosis layer (223).

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