Highway embankment shoulder overhanging Z-shaped retaining wall support structure

Abstract

The utility model relates to retaining wall technical field, and disclose high railway subgrade shoulder overhanging Z type retaining wall support structure, including subgrade retaining wall, the side of subgrade retaining wall bottom end evenly is equipped with three limit insertion slot, the side of subgrade retaining wall is provided with Z type retaining wall, the top of Z type retaining wall evenly is provided with three retaining wall support connecting assembly, the utility model discloses the side of subgrade retaining wall is provided with Z type retaining wall, the three limit insertion block evenly set up in the limit insertion slot in the side of Z type retaining wall bottom, play the role of Z type retaining wall and subgrade retaining wall insertion limit, and through the retaining wall support connecting assembly that sets up in the top of Z type retaining wall, wherein the connecting plug -in board of retaining wall support connecting assembly inserts in the connecting insertion hole, will not cause any damage to Z type retaining wall and subgrade retaining wall, thereby be favorable to the dismounting of Z type retaining wall to user later period, and timely adjustment and maintenance, more convenient user's use.

Description

Technical Field

[0001] This utility model relates to the field of retaining wall technology, specifically to a Z-shaped retaining wall support structure for cantilevered road shoulders of high-speed railway subgrades. Background Technology

[0002] High-speed railways require extremely strict control over subgrade settlement and deformation, and rigid pile composite foundation technology is mostly used for pre-reinforcement in foundation treatment. Currently, traditional embankment subgrade structures mostly adopt trapezoidal cross-sections, resulting in heavy subgrade weight and a wide transverse footprint. This leads to large reinforcement areas, deep treatment depths, high earthwork volumes, and significantly higher project costs for high-speed railway subgrades. These unfavorable factors have also limited the application of traditional subgrade structures in high-speed railway construction. Compared to sloping subgrade structures, vertical retaining walls have a significant slope reduction effect, effectively reducing the amount of earthwork and subgrade weight while minimizing the foundation treatment area, resulting in a clear cost advantage.

[0003] According to the authorized Chinese patent announcement number CN 210134292 U, this utility model discloses a cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders, including a cantilevered Z-shaped retaining wall and subgrade filling material. The cantilevered Z-shaped retaining wall includes an integrally formed cantilevered shoulder, retaining wall vertical wall, retaining wall base plate, and base plate tenon. The cantilevered shoulder, retaining wall vertical wall, and retaining wall base plate are sequentially connected to form a Z shape. The cantilevered shoulder and retaining wall base plate are horizontally arranged, while the retaining wall vertical wall is vertically arranged. The base plate tenon protrudes downward from the bottom of the retaining wall base plate. Multiple drainage holes are formed at intervals on the retaining wall vertical wall. The cantilevered Z-shaped retaining wall is located on one side of the subgrade filling material, and the retaining wall base plate is located at the bottom of the subgrade filling material. Geotextile-wrapped filter material is laid between the retaining wall vertical wall and the subgrade filling material, as well as between the retaining wall base plate and the subgrade filling material. This invention significantly reduces the slope range of embankments, reduces the amount of foundation reinforcement work, reduces the amount of rigid piles and railway subgrade fill material, and features fast construction, low cost, and good prospects for engineering application.

[0004] The retaining wall in the above-mentioned patent still has some shortcomings. Since the existing Z-shaped retaining walls of high-speed railway subgrades are mostly fixed with anchor points, they are fixed to the subgrade by anchor cables and anchor heads. While this method of fixing is convenient, it will cause great trouble for the later dismantling of the retaining wall, making it inconvenient for the later repair and maintenance of the retaining wall, and thus causing some inconvenience in use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a support structure for a cantilevered Z-shaped retaining wall on the shoulder of a high-speed railway subgrade. This solves the problem that existing Z-shaped retaining walls on high-speed railway subgrades are mostly fixed with anchor points, using anchor cables and anchor heads to fix them to the subgrade. While this method is convenient, it causes significant trouble for the later dismantling of the retaining wall, making it inconvenient for subsequent repairs and maintenance, and resulting in certain inconveniences in its use.

[0006] This utility model provides the following technical solution: a cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulder, including a subgrade retaining wall, three limiting slots are evenly provided on the side of the bottom end of the subgrade retaining wall, a Z-shaped retaining wall is provided on the side of the subgrade retaining wall, three limiting blocks are evenly provided on the side of the bottom end of the Z-shaped retaining wall, the limiting blocks are inserted into the limiting slots, three connecting holes are evenly provided on the top end of the Z-shaped retaining wall, and three retaining wall support connection components are evenly provided on the top end of the Z-shaped retaining wall;

[0007] The retaining wall support connection assembly includes a connecting plate inserted into the connecting socket. A fixing slot is provided in the middle of the top side of the connecting plate. Two top connecting seats are symmetrically fixed at the top of the connecting plate. A fixing connecting plate is inserted into the top connecting seat. A bottom side socket is provided at the bottom end of the fixing connecting plate. A limiting connecting post is provided in the top connecting seat. The limiting connecting post passes through the middle of the bottom side socket. A top side socket is provided at the top of the fixing connecting plate. Several limiting frames are symmetrically arranged at the top of the roadbed retaining wall. The end of the fixing connecting plate is rotatably inserted into the limiting frame.

[0008] Preferred technical solution 1: The top side insertion hole is connected to the top of the roadbed retaining wall by a through-inserted fastening rod, and three locking screw holes are evenly opened on the side of the top of the Z-shaped retaining wall.

[0009] Preferred technical solution 2: Each of the locking screw holes is equipped with a locking screw rod, and the end of the locking screw rod extends through the locking screw hole into the fixing slot.

[0010] Preferred technical solution 3: The end of the limiting plug is inclined.

[0011] This solution makes it easier to insert the limit block into the limit slot.

[0012] Preferred technical solution four: The side of the bottom end of the connecting plate is inclined.

[0013] This solution makes it easier to insert the connector into the connector socket.

[0014] Preferred technical solution five: A connecting block is provided at the top of the fastening rod.

[0015] This solution makes it easier for users to press the top of the fastening rod.

[0016] Compared with existing technologies, this utility model provides a cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders, which has the following beneficial effects: This utility model features a Z-shaped retaining wall on the side of the subgrade retaining wall. Three limiting blocks, evenly arranged on the side of the bottom of the Z-shaped retaining wall, are inserted into limiting slots to limit the connection between the Z-shaped retaining wall and the subgrade retaining wall. A retaining wall support connection assembly is installed at the top of the Z-shaped retaining wall. A connecting plate in the retaining wall support connection assembly is inserted into a connecting hole. A locking screw is inserted into the locking screw hole to fix the connecting plate to the connecting hole. A fastening rod is inserted into the end of the fixed connecting plate to fix the end of the fixed connecting plate to the subgrade retaining wall, providing effective support for the Z-shaped retaining wall. Furthermore, the device is easier to assemble and disassemble without causing any damage to the Z-shaped retaining wall or the subgrade retaining wall, thus facilitating the user's later assembly, disassembly, adjustment, and maintenance of the Z-shaped retaining wall, making it more convenient for the user. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is an exploded view of the structure of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of the middle connecting plate structure;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of the central locking screw hole.

[0021] In the diagram: 1. Roadbed retaining wall; 2. Limiting slot; 3. Z-shaped retaining wall; 4. Limiting plug; 5. Connecting socket; 6. Retaining wall support connection assembly;

[0022] 601. Connecting plate; 602. Fixing slot; 603. Top connecting seat; 604. Fixing connecting plate; 605. Bottom side insertion hole; 606. Limiting connecting post; 607. Top side insertion hole; 608. Limiting stop frame; 609. Fastening rod; 610. Locking screw hole; 611. Locking screw. Detailed Implementation

[0023] Please see Figure 1-4 ,

[0024] Example 1: A cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulder, including a subgrade retaining wall 1. Three limiting slots 2 are evenly provided on the side of the bottom end of the subgrade retaining wall 1. A Z-shaped retaining wall 3 is provided on the side of the subgrade retaining wall 1. Three limiting blocks 4 are evenly provided on the side of the bottom end of the Z-shaped retaining wall 3. The limiting blocks 4 are inserted into the limiting slots 2. Three connecting holes 5 are evenly provided on the top end of the Z-shaped retaining wall 3. Three retaining wall support connection components 6 are evenly provided on the top end of the Z-shaped retaining wall 3.

[0025] The retaining wall support connection assembly 6 includes a connecting plate 601 inserted into a connecting socket 5. A fixing slot 602 is provided in the middle of the top side of the connecting plate 601. Two top connecting seats 603 are symmetrically fixed at the top of the connecting plate 601. A fixing connecting plate 604 is inserted into the top connecting seat 603. A bottom side socket 605 is provided at the bottom end of the fixing connecting plate 604. A limiting connecting post 606 is provided in the top connecting seat 603. The limiting connecting post 606 passes through the middle of the bottom side socket 605. A top side socket 607 is provided at the top of the fixing connecting plate 604.

[0026] The top of the roadbed retaining wall 1 is symmetrically provided with several limiting frames 608. The end of the fixed connecting plate 604 is rotatably inserted into the limiting frame 608. The top side insertion hole 607 is connected to the top of the roadbed retaining wall 1 by a fastening rod 609 inserted through it. The side of the top of the Z-shaped retaining wall 3 is evenly provided with three locking screw holes 610. Each locking screw hole 610 is inserted with a locking screw 611. The end of the locking screw 611 extends through the locking screw hole 610 into the fixing slot 602.

[0027] Example 2: The difference between this example and Example 1 is that the end of the limiting block 4 is inclined.

[0028] This makes it easier to insert the limiting block 4 into the limiting slot 2.

[0029] Example 3: The difference between this example and Example 1 is that the side of the bottom end of the connecting plate 601 is inclined.

[0030] This makes it easier to insert the connecting plate 601 into the connecting socket 5.

[0031] Example 4: The difference between this example and Example 1 is that a connecting block is provided at the top of the fastening rod 609.

[0032] This makes it easier for users to press the top of the fastening rod 609.

[0033] In this embodiment, since the existing Z-shaped retaining walls of high-speed railway subgrades are mostly fixed by anchor points, which are fixed to the subgrade by anchor cables and anchor heads, this kind of fixing is convenient, but it will cause great trouble for the later dismantling of the retaining wall, making it inconvenient for the later repair and maintenance of the retaining wall, and its use is somewhat inconvenient.

[0034] In summary, in specific implementation, Z-shaped retaining walls 3 are set on the side of the roadbed retaining wall 1, which provide effective protection for the side of the roadbed retaining wall 1. Three connecting holes 5 are opened at the top of each Z-shaped retaining wall 3, and three retaining wall support connecting components 6 are evenly arranged on the top of the Z-shaped retaining wall 3. The connecting plate 601 in the retaining wall support connecting component 6 is inserted into the connecting hole 5, and the side of the connecting plate 601 is provided with a fixing slot 602. Three locking screw holes 610 are evenly opened on the side of the top of the Z-shaped retaining wall 3, and locking screws 611 are inserted into the locking screw holes 610.

[0035] The end of the locking screw 611 extends through the locking screw hole 610 into the fixing slot 602, thereby connecting the connecting plate 601 to the top of the Z-shaped retaining wall 3. The top of the connecting plate 601 is provided with a top connecting seat 603. The top connecting seat 603 is provided with a limiting connecting post 606 that passes through the bottom side insertion hole 605 opened at the bottom of the fixing connecting plate 604, so that the fixing connecting plate 604 can rotate on the limiting connecting post 606. The end of the fixing connecting plate 604 is rotated and inserted into the limiting stop frame 608. The fastening rod 609 is inserted through the top side insertion hole 607, so that the fastening rod 609 is deeply inserted into the top of the roadbed retaining wall 1.

[0036] Furthermore, the Z-shaped retaining wall 3 is reinforced and connected to the roadbed retaining wall 1, providing effective support for the Z-shaped retaining wall 3. The device is also easier to assemble and disassemble without causing any damage to the Z-shaped retaining wall 3 or the roadbed retaining wall 1. This facilitates the user's later assembly and disassembly of the Z-shaped retaining wall 3, as well as timely adjustment and maintenance, making it more convenient for the user.

Claims

1. A cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders, comprising a subgrade retaining wall (1), characterized in that: The roadbed retaining wall (1) has three limiting slots (2) evenly opened on the side of the bottom end. The roadbed retaining wall (1) has a Z-shaped retaining wall (3) on the side. The Z-shaped retaining wall (3) has three limiting blocks (4) evenly opened on the side of the bottom end. The limiting blocks (4) are inserted into the limiting slots (2). The Z-shaped retaining wall (3) has three connecting holes (5) evenly opened on the top end. The Z-shaped retaining wall (3) has three retaining wall support connection components (6) evenly opened on the top end. The retaining wall support connection assembly (6) includes a connecting plate (601) inserted into the connecting socket (5). A fixing slot (602) is provided in the middle of the top side of the connecting plate (601). Two top connecting seats (603) are symmetrically fixed at the top of the connecting plate (601). A fixing connecting plate (604) is inserted in the top connecting seat (603). A bottom side socket (605) is provided at the bottom end of the fixing connecting plate (604). A limiting connecting post (606) is provided in the top connecting seat (603). The limiting connecting post (606) passes through the middle of the bottom side socket (605). A top side socket (607) is provided at the top of the fixing connecting plate (604). Several limiting frames (608) are symmetrically provided at the top of the roadbed retaining wall (1). The end of the fixing connecting plate (604) is rotatably inserted into the limiting frame (608).

2. The cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders according to claim 1, characterized in that: The top side insertion hole (607) is connected to the top of the roadbed retaining wall (1) by a through fastening rod (609), and three locking screw holes (610) are evenly opened on the side of the top of the Z-shaped retaining wall (3).

3. The cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders according to claim 2, characterized in that: Each of the locking screw holes (610) is fitted with a locking screw (611), and the end of the locking screw (611) extends through the locking screw hole (610) into the fixing slot (602).

4. The cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders according to claim 3, characterized in that: The end of the limiting plug (4) is inclined.

5. The cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders according to claim 4, characterized in that: The side of the bottom end of the connecting plate (601) is inclined.

6. The cantilevered Z-shaped retaining wall support structure for high-speed railway subgrade shoulders according to claim 5, characterized in that: A connecting block is provided at the top of the fastening rod (609).

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