Ballast blocking block for parking lot

Abstract

The utility model relates to the technical field of rail transit, in particular to a ballast blocking block for a parking lot, which is a C35 concrete prefabricated ballast blocking block, and one side surface of the C35 concrete prefabricated ballast blocking block is provided with a concave arc-shaped ballast blocking surface. The two sides of the inwards-concave arc-shaped ballast blocking face are in arc transition with the top face and the corresponding side face of the C35 concrete prefabricated ballast blocking block correspondingly. A triangular reinforcement structure matched with the C35 concrete prefabricated ballast blocking block in cross section shape is arranged in the C35 concrete prefabricated ballast blocking block. The device has the advantages of being simple and reasonable in structure, convenient and fast to install, free of disturbing a lower roadbed and capable of effectively preventing railway ballasts from running.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a ballast block for parking lots. Background Technology

[0002] With the development of rail transit, the number of rail transit lines has increased accordingly. Ballasted track is one of the most common types of rail transit lines, with crushed stone ballast filling the space beneath the track. For loose, scattered crushed stone ballast, to prevent it from scattering and running off the track, especially in rail transit depots, it is necessary to prevent the ballast feet from encroaching on the outer drainage ditches or cable trenches. Therefore, support structures are required on both sides of the ballast to support it.

[0003] Common ballast retaining structures are cast-in-place during track construction. While they offer good overall integrity and ballast retention, they are difficult to repair if damaged. Precast structures, on the other hand, are easier to construct, but their ballast retention performance is generally not guaranteed. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of the prior art by providing a ballast retaining block for parking lots. By designing a ballast retaining surface on the precast concrete ballast retaining block, the ballast can be effectively prevented from slipping off the ballast.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A type of ballast block for parking lots, characterized in that: the ballast block is a precast C35 concrete ballast block, one side of the precast C35 concrete ballast block has a concave arc-shaped ballast surface, and the two sides of the concave arc-shaped ballast surface respectively transition to the top surface and the corresponding side surface of the precast C35 concrete ballast block with arcs; the interior of the precast C35 concrete ballast block is provided with a triangular reinforcement structure that matches its cross-sectional shape.

[0007] A drainage hole is provided at the bottom center of the C35 precast concrete retaining block.

[0008] The triangular reinforcement structure includes several longitudinal bars embedded at different heights in the C35 precast concrete retaining block. The longitudinal bars are arranged in a triangular shape in the cross-section and are connected by transverse stirrups to form a whole.

[0009] The advantages of this utility model are: simple and reasonable structure, convenient installation, no need to disturb the subgrade, and effective prevention of ballast slippage. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the arrangement structure of this utility model;

[0011] Figure 2This is a schematic diagram of the structure of this utility model;

[0012] Figure 3 for Figure 2 Sectional view along axis AA;

[0013] Figure 4 This is a schematic diagram of the reinforcement structure of this utility model;

[0014] Figure 5 for Figure 4 BB-direction sectional view;

[0015] Figure 6 for Figure 4 CC-direction sectional view. Detailed Implementation

[0016] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0017] like Figure 1-6 As shown in the figure, markings 1-6 represent: ballast block 1, ballast 2, drainage hole 3, concave arc-shaped ballast surface 4, longitudinal reinforcement 5, and stirrup 6, respectively.

[0018] Example: Figures 1 to 3 As shown, the parking lot retaining block in this embodiment is used to support the ballast 2 of the rail transit line to prevent it from running off the line, especially to prevent the ballast from falling into the water ditch or cable trough outside the line and causing adverse effects.

[0019] Specifically, combined Figures 1 to 3 As shown, in this embodiment, the ballast block 1 is a precast C35 concrete ballast block with a concave arc-shaped ballast surface 4 on one side. This concave arc-shaped ballast surface 4 faces the ballast 2 during construction and installation. During use, the ballast 2 will partially press against this concave arc-shaped ballast surface 4. Figure 3 As shown, the concave arc-shaped ballast retaining surface 4 in this embodiment has a concave feature. When the ballast 2 presses on the concave arc-shaped ballast retaining surface 4, it cannot rise further from the concave arc-shaped ballast retaining surface 4, thus preventing ballast run-off. At the same time, in order to improve the anti-ballast run-off effect, the top surface and corresponding side surface of the concave arc-shaped ballast retaining surface 4 and the C35 concrete precast ballast retaining block adopt an arc transition with the opposite arc direction to the concave arc-shaped ballast retaining surface 4, thereby forming an anti-ballast run-off node. Especially at the arc transition position between the concave arc-shaped ballast retaining surface 4 and the top surface, even if the ballast splashes to this position, it will still slide inward with the concave arc-shaped ballast retaining surface 4.

[0020] Combination Figures 4 to 6As shown, in order to improve the supporting capacity and self-stability of the C35 concrete precast ballast block in this embodiment, a reinforced structure with a triangular cross-sectional shape is provided inside it. The triangular structure is consistent with the structure of the C35 concrete precast ballast block with an inner arc-shaped ballast surface 4.

[0021] Specifically, combined Figures 4 to 6 As shown, the reinforcement structure consists of several longitudinal bars 5 arranged along the longitudinal direction of the C35 precast concrete ballast block and several transverse stirrups 6 arranged at intervals. In this embodiment, as... Figure 4 As shown, a longitudinal reinforcement 5 is arranged at a relatively high position of the C35 precast concrete ballast block, and three longitudinal reinforcement 5 are arranged at a relatively low position. These four longitudinal reinforcement 5 are then connected into an integral structure by stirrups 6, thereby improving the performance of the C35 precast concrete ballast block.

[0022] In this embodiment, as Figure 2 As shown, a drainage hole 3 is provided at the bottom center of the C35 precast concrete retaining block, and water inside the ballast 2 can be discharged to the outside of the track through the drainage hole 3.

[0023] In this embodiment, the retaining block 1 is made of C35 concrete, the reinforcing steel is Φ8HPB300, and each retaining block is 0.8m long.

[0024] During installation, the joints of adjacent ballast blocks 1 must be flush and 10mm wide; the ballast blocks 1 are grouted with cement mortar with a compressive strength of 10MPa, and the grouting must be full and compact; the ballast blocks 1 are grouted with concave joints with a depth of 5mm.

[0025] The distance between the inner edge of the ballast block 1 and the center line of the ballast track is generally 1880mm (50kg / m rail) and 2000mm (60kg / m rail); during construction, appropriate adjustments can be made according to the layout of the station's drainage ditches, contact wire columns, etc.

[0026] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A type of ballast block for parking lots, characterized in that: The ballast block is a C35 precast concrete ballast block. One side of the C35 precast concrete ballast block has a concave arc-shaped ballast surface. The two sides of the concave arc-shaped ballast surface are respectively connected to the top surface and the corresponding side surface of the C35 precast concrete ballast block with arc transitions. The interior of the C35 precast concrete ballast block is provided with a triangular reinforcement structure that matches its cross-sectional shape.

2. A ballast block for parking lots according to claim 1, characterized in that: A drainage hole is provided at the bottom center of the C35 precast concrete retaining block.

3. A ballast block for parking lots according to claim 1, characterized in that: The triangular reinforcement structure includes several longitudinal bars embedded at different heights in the C35 precast concrete retaining block. The longitudinal bars are arranged in a triangular shape in the cross-section and are connected by transverse stirrups to form a whole.

Images