A diaphragm wall guide wall cover device

Abstract

This invention relates to a guide wall cover device for underground continuous walls. The cover plate has barrier strips on both sides, compression blocks at both ends of the rear side, and an installation mesh on the bottom side. Support rods are installed at both ends of the installation mesh, and fixing plates are installed at the bottom of the support rods. The surface of the fixing plate includes fixing bolts and grooved parts. Recessed support rods are embedded in the inner side of the grooved parts. A horizontal bar is provided in the middle of the installation mesh, and the horizontal bars are arranged in pairs, with at least two. Raised ridge frames are installed at the front and rear ends of the installation mesh. This invention, through the installation mesh structure, prevents stones or debris from falling to the inner side. Furthermore, because the overall structure of the cover plate is made of lightweight materials and is not directly fixed to the ground, the cover plate can be easily disassembled and opened to expose the inner installation mesh for cleaning, making it easier for workers to operate and transport it for installation.

Description

Technical Field

[0001] This invention relates to a diaphragm wall, and more particularly to a guide wall cover device for a diaphragm wall. Background Technology

[0002] Diaphragm walls are foundation engineering projects where a trenching machine excavates a long, narrow trench along the perimeter of a deep excavation project, using slurry wall support. In the pre-construction process of diaphragm walls, guide walls are typically constructed to secure the top of the diaphragm wall and facilitate subsequent trenching. After the diaphragm wall construction is completed, cover plates are installed on the trench surface of the guide wall to prevent personnel from falling and to allow vehicles or trolleys to move along the sides of the guide wall. Therefore, the sturdiness and structural stability of the cover plates are fundamental safety requirements. For example, the prior art with patent publication number CN217810959U provides a similar guide wall cover plate structure.

[0003] However, in existing technologies, whether people or vehicles pass through, the cover plate is prone to displacement due to its low friction with the ground, especially during rainy seasons or when the ground is slippery. In severe cases, this can lead to people falling to the inside. At the same time, the load-bearing capacity of commonly used cover plate structures is usually poor. When large vehicles such as trucks or cranes temporarily pass through according to work conditions, they are very prone to brittle failure. Furthermore, when vehicles pass through, small stones or garbage are carried onto the wheels and moved, causing the garbage to fall to the inside through the gaps in the cover plate. This requires repeated cleaning after opening the cover plate, making it impractical. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an underground continuous wall guide wall cover plate device, which solves the problems of low strength of the cover plate in the prior art, inability to pass heavy vehicles, short lifespan and excessive weight making it difficult to transport.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A guide wall cover plate device for underground continuous wall includes a guide wall, a cover plate, and an installation mesh. The guide wall has a cover plate at its top, and barrier strips are provided on both the left and right sides of the cover plate. Extrusion blocks are provided at both ends of the rear side of the cover plate. The installation mesh is provided on the bottom side of the cover plate, and support rods are installed at both ends of the installation mesh. A fixing plate is installed at the bottom end of the support rods. The surface of the fixing plate includes fixing bolts and grooved parts. The inner side of the grooved parts is provided with recesses. The support rods are embedded in the inner side of the grooved parts. A horizontal bar is provided in the middle of the installation mesh. The horizontal bars are arranged in pairs, with at least two. A raised ridge frame is installed at the front and rear ends of the installation mesh.

[0007] Furthermore, the barrier strip has bolt holes on its surface, and the barrier strip has a triangular structure with the side closest to the cover plate being vertical; the side of the barrier strip closest to the cover plate is higher than the left and right edges of the cover plate, and mounting bolts are provided inside the bolt holes.

[0008] Furthermore, both the left and right surfaces of the cover plate are vertical surfaces, and an arc-shaped protrusion is provided in the middle of the cover plate, with drainage holes provided on both the left and right sides of the arc-shaped protrusion.

[0009] Furthermore, the perforations are located on the top side of the installation mesh, and are hollowed out on the left and right inclined surfaces of the arc-shaped protrusion. The perforations are elongated and arranged at equal intervals.

[0010] Furthermore, the support rod includes a strut and a sleeve. The strut is located at the bottom end of the support rod, and a protrusion is provided at the center of the top end of the strut. The sleeve is located at the top end of the support rod, and a sliding groove is provided at the bottom end of the sleeve. The protrusion and the sliding groove are slidably connected. A telescopic spring is also provided between the protrusion and the sliding groove, and the telescopic spring is located at the top end of the protrusion.

[0011] Furthermore, the outer surface of the cover plate is made of a steel plate layer, and an engineering plastic interlayer is provided on the inner side of the steel plate layer. The engineering plastic interlayer has an inclined plate structure and is located between the upper and lower steel plate layers. The gaps in the engineering plastic interlayer are filled with resin.

[0012] Furthermore, the edge of the installation net is provided with a frame, and the edge of the installation net and the sleeve rod are fixedly connected. The sleeve rod and the cover plate are embedded and detachably installed. The top of the spine frame and the bottom of the arc-shaped protrusion are provided with a gap. The cover plate and the barrier strip are embedded and detachably installed. The extrusion block is made of rubber material.

[0013] Furthermore, the fixing plate and the guide wall are installed by embedded bolts or pre-embedded installation, wherein the surface of the fixing plate and the surface of the guide wall are on the same vertical plane, the groove is a protruding structure, and the groove and the fixing plate are connected by bolts.

[0014] Furthermore, the spine frame includes uprights and diagonal braces, wherein the uprights are located at the junction of the horizontal bars and the frame, and the diagonal braces are inclined and connected to the uprights at both ends.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By setting up an installation mesh structure, when stones or garbage fall to the inner side from the top, they will be blocked by the installation mesh. At the same time, since the overall structure of the cover plate is made of a relatively lightweight material, the cover plate is not directly fixed to the ground. Therefore, the cover plate can be directly disassembled and opened to expose the installation mesh on the inner side for direct cleaning according to the actual working conditions, which is more convenient for workers to operate independently and carry out installation.

[0017] 2. The present invention also features support rods on both sides of the installation mesh structure. These support rods provide further end-to-end support to the upper arc-shaped protrusion, thereby changing the load-bearing capacity from individual shear stress to the vertical load-bearing capacity of the guide wall. Since the barrier strips also provide a fixing effect from both ends, the multi-point fixing method and the well-like structure used in the installation mesh can meet the temporary load-bearing capacity when heavy trucks or transport vehicles pass by, and the support rods can reduce vibration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the underground continuous wall guide wall cover plate device of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation mesh structure of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the support rod structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the steel plate layer structure of the present invention;

[0023] In the diagram: 1. Guide wall; 2. Cover plate; 201. Barrier strip; 202. Bolt hole; 203. Arc-shaped protrusion; 204. Leakage hole; 205. Extrusion block; 3. Installation mesh; 301. Horizontal bar; 302. Ridge frame; 303. Column; 304. Diagonal brace; 4. Support rod; 401. Support rod; 402. Sleeve rod; 403. Protrusion block; 404. Sliding groove; 405. Telescopic spring; 5. Fixing plate; 501. Groove part; 6. Steel plate layer; 601. Engineering plastic interlayer; 602. Resin. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example 1:

[0026] like Figures 1 to 5As shown, the present invention provides a guide wall cover plate device for underground continuous wall, including a guide wall 1 and a plate 2. A cover plate 2 is provided at the top of the guide wall 1. A barrier strip 201 is provided on both the left and right sides of the cover plate 2. Bolt holes 202 are provided on the surface of the barrier strip 201. The barrier strip 201 is triangular in structure, and the side closest to the cover plate 2 is vertical. Both the left and right sides of the cover plate 2 are vertical surfaces. An arc-shaped protrusion 203 is provided in the middle of the cover plate 2. Drainage holes 204 are provided on both the left and right sides of the arc-shaped protrusion 203. Extrusion blocks 205 are provided at both ends of the rear side of the cover plate 2.

[0027] A mounting mesh 3 is provided on the bottom side of the cover plate 2. Support rods 4 are installed at both ends of the mounting mesh 3. A fixing plate 5 is installed at the bottom end of the support rods 4. The surface of the fixing plate 5 includes fixing bolts and grooves 501. The inner side of the grooves 501 is recessed. The support rods 4 are embedded in the inner side of the grooves 501. A horizontal bar 301 is provided in the middle of the mounting mesh 3. The horizontal bars 301 are arranged in pairs, with at least two. A raised ridge frame 302 is installed at the front and rear ends of the mounting mesh 3.

[0028] Furthermore, the support rod 4 includes a strut 401 and a sleeve 402. The strut 401 is located at the bottom of the support rod 4, and a protrusion 403 is provided at the middle of the top of the strut 401. The sleeve 402 is located at the top of the support rod 4, and a sliding groove 404 is provided at the bottom of the sleeve 402. The protrusion 403 and the sliding groove 404 are slidably connected. A telescopic spring 405 is also provided between the protrusion 403 and the sliding groove 404, and the telescopic spring 405 is located at the top of the protrusion 403.

[0029] The outer surface of the cover plate 2 is made of steel plate layer 6. An engineering plastic interlayer 601 is provided on the inner side of the steel plate layer 6. The engineering plastic interlayer 601 is an inclined plate structure and is located between the upper and lower steel plate layers 6. The gaps of the engineering plastic interlayer 601 are filled with resin 602.

[0030] The edge of the installation net 3 is provided with a frame, and the edge of the installation net 3 and the sleeve rod 402 are fixedly connected. The top of the spine frame 302 and the bottom of the arc protrusion 203 are provided with a gap. The sleeve rod 402 and the cover plate 2 are embedded and detachable. The cover plate 2 and the barrier strip 201 are embedded and detachable. The extrusion block is made of rubber material.

[0031] The perforation 204 is located on the top side of the installation mesh 3, and is hollowed out on the left and right inclined surfaces of the arc protrusion 203. The perforation is long and arranged at equal intervals. The barrier strip 201 is higher than the left and right edges of the cover plate 2 on the side closer to the cover plate 2. The bolt hole 202 is provided with an installation bolt inside.

[0032] The fixing plate 5 and the guide wall 1 are installed by embedded bolts or by pre-embedded installation. The surface of the fixing plate 5 and the surface of the guide wall 1 are on the same vertical plane. The groove 501 is a protruding structure. The groove 501 and the fixing plate 5 are connected by bolts.

[0033] The spine frame 302 includes uprights 303 and diagonal braces 304. The uprights 303 are located at the junction of the horizontal bar 301 and the frame, and the diagonal braces 304 are inclined and connected to the uprights 303 at both ends.

[0034] Specifically, after the construction of the diaphragm wall is completed, a fixing plate 5 is pre-embedded in the inner wall of the guide wall 1 or the fixing plate 5 is installed on the wall surface by bolts. Alternatively, the steel bars protruding from the inner wall of the guide wall 1 and the fixing plate 5 can be installed. Then, the bottom of the support rod 4 connected to the installation net 3 is inserted into the groove 501 to achieve the load-bearing effect.

[0035] At the top of the guide wall 1 structure, a barrier strip 201 can be installed at a certain distance from the edge of the groove. Based on the barrier strip 201 and the bolts inside the bolt holes 202, it is directly fixed to the ground. The barrier strip 201 has a triangular structure and an insertion port is provided near the inner side. After the barrier strips 201 on both sides are installed, the cover plate 2 is placed on the inner side to complete the operation.

[0036] Since the cover plate 2 is mainly made of steel plate layer 6, engineering plastic interlayer 601 and resin 602, it can produce a certain degree of deformation and bending. It can be placed directly inside the barrier strip 201 and limited to the left and right displacement. At the same time, the extrusion block 205 on the rear side can also block the adjacent cover plates 2. If it is necessary to open the cover plate 2, simply insert your hand into the gap between the cover plates 2 and pull it upwards. Because the structural material is lighter than the steel plate of the prior art, it can be operated by a single person when there are fewer workers.

[0037] If the available area on the construction site is small and the construction vehicle needs to pass over the cover plate 2, it can travel directly on the cover plate 2. When passing, the front wheels of the vehicle first contact the height difference gap between the barrier strip 201 and the cover plate 2, which can provide the wheels with further friction to prevent slipping on the cover plate; when passing through the arc-shaped protrusion 203, the arc-shaped protrusion 203 is under load and contacts the spine frame 302. The spine frame 302 distributes the load in the middle to the top of the support rods 4 on the left and right sides through the well-shaped installation mesh 3. At the same time, the arc-shaped protrusion 203... The pressure on the left and right sides near the edge of the guide wall 1 will be based on the downward pressure of the support rod 4. When the load-bearing force is too large, the entire cover plate 2 will deform upward based on the support rod 4 as the fulcrum. At this time, the part inserted into the barrier strip 201 will block the deformation of the edge to provide greater load-bearing force. The above structure can enhance the overall load-bearing effect of the cover plate 2. With only a few structures, it can achieve the effect of weighing and passing heavy objects, such as engineering vehicles or heavy trolleys, and the vehicle will not cause brittle damage to the edge of the guide wall 1 when passing through.

[0038] When an object like a construction vehicle passes by, the object itself will vibrate to a certain extent, causing mud, water, stones or garbage attached to the wheels to fall into the inside of the drain hole 204. Therefore, the drain hole 204 is set on the inclined surface on both sides of the arc protrusion 203 to provide the effect of mud and water falling from the drain hole 204 and carrying away the stones. After the stones fall from the drain hole 204, they fall onto the surface of the installation mesh 3 with smaller gaps and rest there, while the mud and water continue to fall.

[0039] When the vehicle vibrates due to aging, the support rod 4 at the bottom of the cover plate 2 is inserted into the recess at the bottom of the cover plate 2 from both sides in a contact manner, that is, it is fixed in a support-like manner. Therefore, the vibration or compression generated from above and below will absorb energy at the strong telescopic spring 405 between the support rod 401 and the sleeve rod 402. The protrusion 403 slides up and down in the sliding groove 404 based on the telescopic spring 405 to reduce the deformation caused by the vibration of the cover plate 2, which would lead to brittle failure of the support rod 4 as a whole.

[0040] The present invention has a simple overall structure and is easy to install. Whether disassembled or assembled by oneself, it can be processed in a short time. During cleaning, the inner installation mesh 3 can be exposed by simply removing the cover plate 2 from the top. At the same time, the installation mesh 3 also provides a load-bearing effect for the middle of the cover plate 2. When the whole device is transported to or removed from the site, the cover plate 2 surface structure made of a lighter material can reduce the force required for transportation. Moreover, compared with the steel plate structure of the prior art, this structure has higher toughness and strength, and is lighter.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An underground continuous wall guide wall cover plate device characterized by, Includes a guide wall (1), a cover plate (2), and an installation mesh (3). The top of the guide wall (1) is provided with a cover plate (2). Both sides of the cover plate (2) are provided with barrier strips (201). The rear ends of the cover plate (2) are provided with compression blocks (205). The bottom side of the cover plate (2) is provided with an installation mesh (3). Both ends of the installation mesh (3) are provided with support rods (4). The bottom end of the support rods (4) is provided with a fixing plate (5). The surface of the fixing plate (5) includes fixing bolts and grooved parts (501). The inner side of the 01) is provided with a recess, the support rod (4) is embedded in the inner side of the groove (501), the middle part of the installation net (3) is provided with a horizontal bar (301), the horizontal bar (301) is provided in pairs, at least two, the front end and rear end of the installation net (3) are provided with a raised ridge frame (302); the left and right sides of the cover plate (2) are both vertical surfaces, the middle part of the cover plate (2) is provided with an arc-shaped protrusion (203), and the left and right sides of the arc-shaped protrusion (203) are provided with drainage holes (204); the support rod (4) Includes a support rod (401) and a sleeve rod (402). The support rod (401) is located at the bottom end of the support rod (4). A protrusion (403) is provided at the middle of the top of the support rod (401). The sleeve rod (402) is located at the top of the support rod (4). A sliding groove (404) is provided at the bottom end of the sleeve rod (402). The protrusion (403) and the sliding groove (404) are slidably connected. A telescopic spring (405) is also provided between the protrusion (403) and the sliding groove (404). The telescopic spring (405) is located at the bottom end of the protrusion (403). The top of 403); the edge of the installation net (3) is provided with a frame, and the edge of the installation net (3) and the sleeve rod (402) are fixedly connected. The sleeve rod (402) and the cover plate (2) are embedded and detachable. The top of the spine frame (302) and the bottom of the arc protrusion (203) are provided with a gap. The cover plate (2) and the barrier strip (201) are embedded and detachable. The extrusion block is made of rubber material. The fixing plate (5) and the guide wall (1) are embedded bolt installation or pre-embedded installation.

2. The diaphragm wall guide wall cover apparatus according to claim 1, characterized by: The surface of the barrier strip (201) is provided with bolt holes (202). The barrier strip (201) is triangular in structure, and the side near the cover plate (2) is vertical. The side of the barrier strip (201) near the cover plate (2) is higher than the left and right edges of the cover plate (2). The bolt holes (202) are provided with mounting bolts.

3. The underground continuous wall guide cover plate device according to claim 1, characterized in that: The holes (204) are located on the top side of the installation mesh (3), and the holes are set on the left and right inclined surfaces of the arc protrusion (203). The holes are long strips and are arranged at equal intervals.

4. The underground continuous wall guide cover plate device according to claim 1, characterized in that: The outer surface of the cover plate (2) is made of a steel plate layer (6). An engineering plastic interlayer (601) is provided on the inner side of the steel plate layer (6). The engineering plastic interlayer (601) is an inclined plate structure and is located between the upper and lower steel plate layers (6). The gaps in the engineering plastic interlayer (601) are filled with resin (602).

5. The underground continuous wall guide cover plate device according to claim 1, characterized in that: The surface of the fixing plate (5) and the surface of the guide wall (1) are on the same vertical plane. The groove (501) is a protruding structure. The groove (501) and the fixing plate (5) are connected by bolts.

6. The underground continuous wall guide cover plate device according to claim 1, characterized in that: The spine frame (302) includes a column (303) and a diagonal brace (304), wherein the column (303) is located at the junction of the horizontal bar (301) and the frame, and the diagonal brace (304) is set at an angle, and the two ends of the diagonal brace (304) are connected to the column (303).

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