Combined road surface temporary widening structure for heavy goods transport

Abstract

The utility model discloses a combined road surface temporary widening structure for large piece transportation relates to highway engineering technical field, and the purpose is to make the steel plate that lays the road surface wider can be stable under the heavy pressure of vehicle, and the following technical scheme is proposed: including multiple sets of steel plates, multiple sets of steel plates one end is located on the roadbed, and the other end of multiple sets of steel plates is suspended above the recessed area outside the roadbed, and the bottom of each set of steel plates is installed counterweight part away from the side of river course, and the counterweight part is connected with each other, and the counterweight part is arranged in the base groove of roadbed opening. Compared with the mode that the traditional concrete is supported by the aid of the column in the recessed area and is poured, the utility model only needs to dig the base groove on the side away from the recessed area, and the counterweight part is put into and is connected with the steel plate, can avoid the preliminary work such as drainage, dredging under the complex environment, also need not to build construction platform, use professional equipment and technical personnel to pour the concrete, greatly simplifies the construction process, and reduces the construction cost.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering technology, specifically to a combined temporary road widening structure for transporting large items. Background Technology

[0002] In the field of highway engineering, the transportation of oversized cargo often faces many challenges. When oversized cargo vehicles travel on narrow roads, because the width of the vehicle exceeds the width of the road, it is necessary to temporarily build a widening structure to ensure the smooth passage of the oversized cargo vehicles. This is especially true in some special road sections, such as when one side of the road is a depression (such as a river, ditch, valley, etc.) and the other side is an important irrigation canal or aqueduct or other area where widening is not feasible. The widening part of the road usually can only extend to the side closer to the depression. Currently, the common practice is to lay steel plates wider than the road surface, so that part of the steel plates extends into the river and is suspended in the air. To ensure the stability of the steel plates and prevent them from shifting under the weight of the vehicle, the suspended part of the steel plates is usually supported.

[0003] Currently, the most common support method is to use columns to support the suspended portion of the steel plate. However, the geological conditions around the sunken area are extremely complex, with loose soil that is easily eroded by water flow, making it difficult for the columns to firmly anchor. (e.g.) Figure 7 (As shown) The traditional solution is to first pour concrete, and through the solidification characteristics of concrete, make the column and the foundation tightly bonded, thereby increasing the contact area and friction between the column and the soil, and thus effectively preventing the column from tilting, shifting or sinking under the pressure of vehicles and the impact of water flow, ensuring the structural stability of the widened road.

[0004] However, this method has many problems in practical applications: when constructing in a depression area, the complex water environment requires preliminary work such as drainage and dredging, which undoubtedly increases the complexity and cost of construction; building a construction platform and pouring concrete require professional equipment and technicians, and the concrete curing is affected by factors such as water temperature and water flow, which leads to a longer construction period; when pouring concrete, pollutants such as cement slurry enter the water body, polluting the water quality, endangering the survival of aquatic organisms, and disrupting the ecological balance of the depression area. Therefore, it is necessary to provide a combined temporary road widening structure for heavy transport to solve the above technical problems.

[0005] Chinese patent application CN111705584B discloses a snap-fit, modular temporary pavement structure. The temporary pavement panels are bidirectionally connected, with holes on all four sides for bolts to connect to interlocking blocks. Adjacent interlocking blocks are connected using U-bolts. Multiple pavement panels are assembled to form the entire temporary pavement. This temporary pavement is semi-rigid and capable of bidirectional deformation. The pavement transfers vehicle loads to the subgrade through deformation, preventing large bending deformations in individual pavement panels and potential damage. A patterned plate is welded to the upper part of the pavement panels to increase the friction coefficient. Bidirectional stiffening ribs are welded to the bottom of the pavement panels to improve the rigidity of individual panels, increase the contact area with the subgrade soil, and distribute concentrated wheel loads on the upper part of the pavement. The entire pavement is easy to lay, recycle, and transport, and its assembly is flexible. Utility Model Content

[0006] This utility model provides a combined temporary road widening structure for heavy transport, the purpose of which is to ensure that the steel plate laid wider than the road surface can be stable under the heavy pressure of vehicles.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0008] A modular temporary road widening structure for transporting large items includes multiple sets of steel plates that are longitudinally connected to each other. One end of each set of steel plates is placed on the roadbed, and the other end of each set of steel plates is suspended above a recessed area outside the roadbed. A counterweight component is installed on the side of the bottom of each set of steel plates away from the recessed area. The counterweight components between the multiple sets of steel plates are connected to each other, and the counterweight components are placed in a trench opened in the roadbed.

[0009] Furthermore, each set of steel plates has a thickened section at the bottom, and counterweight components are installed at the bottom of the thickened section.

[0010] Furthermore, a placement groove is provided at the top of the thickened part; the counterweight component includes a counterweight block, a vertical threaded column set on the top of the counterweight block, and a fixing nut threaded to the outside of the vertical threaded column. The top of the vertical threaded column is inserted into the placement groove and fixed by the fixing nut.

[0011] Furthermore, a support ring is threadedly connected to the outside of the vertical threaded column below the fixing nut, and the support ring is located at the bottom of the thickened part.

[0012] Furthermore, a sealing cap is installed inside the placement slot.

[0013] Furthermore, the bottom of the sealing cap is provided with a receiving groove, and the top of the vertical threaded column and the fixing nut are both located in the receiving groove.

[0014] Furthermore, each set of steel plates has a mounting base for fixing adjacent steel plates at one end near the recessed area. The top of the mounting base has a mounting lug, and a first mounting hole is opened in the mounting lug. A first threaded rod is provided in two adjacent first mounting holes, and a first nut is threaded to both ends of the first threaded rod.

[0015] Furthermore, the top of the counterweight component is symmetrically provided with fixing plates for fixing adjacent counterweight components. The fixing plates are provided with second mounting holes, and adjacent second mounting holes are provided with second threaded rods. Both ends of the second threaded rods are threaded with second nuts.

[0016] Furthermore, several anti-slip grooves are spaced apart on the top of the steel plate.

[0017] This utility model has the following beneficial effects:

[0018] Compared to the traditional method of supporting the depression with columns and pouring concrete in the depression area, this utility model only requires digging a foundation trench on the side away from the depression area, placing the counterweight component in it and connecting it with the steel plate to stabilize the steel plate. This avoids the need for preliminary work such as drainage and dredging in the complex water environment of the depression area, and also eliminates the need to build a construction platform and use professional equipment and technicians for concrete pouring. This greatly simplifies the construction process, reduces construction costs, and effectively prevents damage to the depression area.

[0019] A side mounting bracket is fixedly connected to the top of the steel plate on the side away from the thickened part. The two adjacent side mounting brackets are connected to each other. The vibration and impact generated by the vehicle will be transmitted between the steel plates, making the entire widened road surface like a tightly integrated whole, which greatly enhances the lateral stability of the structure and ensures the smoothness and safety of the vehicle.

[0020] The counterweight components have two fixed plates symmetrically fixed to the top two sides of the counterweight block. The two adjacent fixed plates are connected to each other, so that multiple counterweight components form an interconnected stable system, which together provides stable support for the steel plate and enhances the stability of the entire widened structure.

[0021] A sealing cover is installed inside the placement slot, and a receiving groove is opened at the bottom of the sealing cover. The sealing cover protects the components in the placement slot and reduces the risk of them being corroded and damaged by the external environment. At the same time, after the sealing cover is installed, the road surface formed by the steel plate is smoother and does not hinder the normal driving of vehicles.

[0022] The anti-slip grooves evenly spaced on the top of the steel plate increase the contact area and roughness between the vehicle tires and the steel plate surface, improving friction and effectively preventing transport vehicles from slipping on widened roads, thus ensuring transportation safety. Attached Figure Description

[0023] Figure 1 A schematic diagram of the combined temporary road widening structure for transporting large items provided by this utility model after installation;

[0024] Figure 2 This is a schematic diagram of the anti-slip groove in this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first fixing component and the second fixing component in this utility model;

[0026] Figure 4 This is a schematic diagram of the counterweight component in this utility model;

[0027] Figure 5 This is a schematic diagram of the counterweight block of this utility model;

[0028] Figure 6 This is a cross-sectional view of the counterweight component in this utility model;

[0029] Figure 7 This is a schematic diagram of a common temporary road widening technique in existing technologies.

[0030] Figures 1 to 7 The reference numerals in the attached drawings are as follows: 1-steel plate; 2-base trench; 3-counterweight component; 301-counterweight block; 302-fixing plate; 303-vertical threaded column; 304-support ring; 305-fixing nut; 306-second mounting hole; 307-second threaded rod; 308-second nut; 4-sealing cap; 401-receiving groove; 101-anti-slip groove; 102-supporting part; 103-placement groove; 104-mounting seat; 105-thickened part; 106-mounting lug; 107-first mounting hole; 108-first threaded rod; 109-first nut; 7-important irrigation canal aqueduct; 8-roadbed; 9-recessed area. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0032] In this utility model, the terms "longitudinal," "lateral," "vertical," "upper," "lower," "front," "rear," "left," "right," "top," and "bottom," etc., indicate the orientation or positional relationship based on the appendix. Figure 2 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Please refer to Figure 1-7 When implementing the combined temporary road widening structure for oversized transport of the present invention, it is first necessary to clarify that the structure is mainly applied to oversized transport scenarios. When the size of the cargo carried by the transport vehicle is too large and exceeds the original road width, the temporary widening structure can be built to enable the vehicle to safely and smoothly pass through areas such as depressions where the road needs to be widened.

[0034] The widening structure includes multiple sets of steel plates 1 connected longitudinally (in the length direction of the steel plates). One end of each set of steel plates 1 is set on the roadbed 8, and the other end of each set of steel plates 1 is suspended above the recessed area 9 outside the roadbed 8. A counterweight component 3 is installed on the side of the bottom of each set of steel plates 1 away from the recessed area 9. The counterweight components 3 between the multiple sets of steel plates 1 are connected to each other, and the counterweight components 3 are set in the trench 2 opened in the roadbed 8.

[0035] The structure is mainly composed of multiple sets of steel plates 1 forming the main frame. During the construction preparation phase, the quantity, size, and placement of the steel plates need to be determined based on actual transportation requirements and site topography. One end of each set of steel plates 1 is securely placed on the roadbed 8. A counterweight 3 is installed on the side of each set of steel plates away from the recessed area 9; the placement of the counterweight 3 is crucial to the stability of the entire structure. The counterweight 3s between the multiple sets of steel plates 1 are interconnected, forming a unified whole, providing sufficient downward pressure to the steel plates and preventing them from tilting or shifting due to vehicle weight during transportation. The counterweight 3 is placed within a trench 2 created in the roadbed 8. The dimensions and depth of the trench 2 should be designed according to the dimensions and weight of the counterweight 3 to ensure that the counterweight 3 can be stably placed within the trench without causing excessive pressure on the roadbed.

[0036] In order to increase the strength of the steel plate 1 at the position of the counterweight component 3, and to provide a more stable support surface for the installation of the counterweight component 3, a thickened part 105 is provided at the bottom of each group of steel plates 1, and the counterweight component 3 is installed at the bottom of the thickened part 105.

[0037] To facilitate the secure installation of the counterweight component 3, a placement groove 103 is provided on the top of the thickened part 105. The counterweight component 3 includes a counterweight block 301, a vertical threaded post 303 provided on the top of the counterweight block 301, and a fixing nut 305 threaded to the outside of the vertical threaded post 303. The top of the vertical threaded post 303 is inserted into the placement groove 103 and fixed by the fixing nut 305.

[0038] The counterweight 301 can be made of high-density materials, such as cast iron, to ensure it has sufficient weight to balance the weight of the steel plate and the transport vehicle. A vertical threaded post 303 is welded to the top of the counterweight 301; its diameter and thread specifications should be designed according to the actual stress conditions to ensure a secure connection. During installation, the top of the vertical threaded post 303 is inserted into the placement groove 103, and then the fixing nut 305 is rotated to move it downwards along the vertical threaded post 303 until it comes into close contact with the thickened part 105, thereby fixing the counterweight component 3 to the steel plate.

[0039] To further enhance the connection stability between the counterweight component 3 and the steel plate, a support ring 304 is also threadedly connected to the outside of the vertical threaded column 303 below the fixing nut 305. The support ring 304 is located at the bottom of the thickened part 105.

[0040] The inner diameter of the support ring 304 is matched with the diameter of the vertical threaded post 303, and its outer diameter is larger than the width of the placement groove 103. This allows it to support the counterweight component 3 from below while the fixing nut 305 secures it, preventing the counterweight component 3 from swaying or tilting under external force. When installing the support ring 304, first slip it onto the vertical threaded post 303, then adjust the height of the support ring 304 according to the installation position of the fixing nut 305 so that it fits tightly against the bottom of the thickened part 105.

[0041] After the counterweight component 3 is installed, a sealing cover 4 is installed in the placement groove 103 to prevent external debris from entering the placement groove 103 and affecting the normal use and structural stability of the counterweight component 3. The bottom of the sealing cover 4 has a receiving groove 401, and the top of the vertical threaded column 303 and the fixing nut 305 are both located in the receiving groove 401.

[0042] The sealing cap 4 can be made of materials with a certain degree of elasticity and sealing properties, such as rubber or plastic. Its size is adapted to the size of the placement groove 103, and it can completely cover the placement groove 103. The top of the vertical threaded post 303 and the fixing nut 305 are both located in the receiving groove 401. This not only allows the sealing cap 4 to fit better in the placement groove 103, but also provides a certain degree of protection for the vertical threaded post 303 and the fixing nut 305, preventing them from being corroded by the external environment.

[0043] To ensure that the multiple sets of steel plates 1 can be firmly connected to form a whole, each set of steel plates 1 is provided with a mounting base 104 for fixing adjacent steel plates 1 at one end near the recessed area 9. The top of the mounting base 104 is provided with a mounting lug 106, and a first mounting hole 107 is opened in the mounting lug 106. A first threaded rod 108 is provided in two adjacent first mounting holes 107, and a first nut 109 is threaded to both ends of the first threaded rod 108.

[0044] The mounting base 104 can be fixed to the end of the steel plate by welding or bolting. Its size and shape should be designed according to the size of the steel plate and the connection requirements. When connecting adjacent steel plates, align the two adjacent mounting lugs 106 so that the first mounting holes 107 are on the same straight line. Then, install the first threaded rods 108 in the two adjacent first mounting holes 107. Both ends of the first threaded rods 108 are threaded with first nuts 109. By rotating the first nuts 109, they are moved along the first threaded rods 108 until the two adjacent mounting lugs 106 are tightly clamped, thereby achieving a firm connection between the adjacent steel plates 1.

[0045] The connection between adjacent counterweight components 3 can take various forms, such as fixed plate + threaded rod, welding / bolt direct connection, pin connection, etc. In this embodiment, the connection method of fixed plate + threaded rod is preferred. Fixed plates 302 for fixing adjacent counterweight components 3 are symmetrically arranged on the top of the counterweight components 3. The fixed plates 302 are provided with second mounting holes 306, and second threaded rods 307 are provided adjacent to the second mounting holes 306. Both ends of the second threaded rods 307 are threadedly connected with second nuts 308.

[0046] A fixing plate 302 is welded to the top of the counterweight 301, and a second mounting hole 306 is provided on it. When connecting adjacent counterweight components, the two adjacent fixing plates 302 are aligned so that the second mounting holes 306 are on the same straight line. Then, a second threaded rod 307 is provided in the adjacent second mounting holes 306, and a second nut 308 is threaded to both ends of the second threaded rod 307. By rotating the second nut 308, it moves along the second threaded rod 307 until the two adjacent fixing plates 302 are tightly clamped, thereby achieving a firm connection between the adjacent counterweight components 3.

[0047] To increase the friction of the steel plate surface and prevent the transport vehicle from slipping during operation, several anti-slip grooves 101 are opened at intervals on the top of the steel plate 1.

[0048] The depth of the anti-slip groove 101 is 20-50mm. The shape of the anti-slip groove 101 can be designed according to actual needs, such as rectangular or trapezoidal shapes. Its depth and width should ensure sufficient friction without affecting the overall strength of the steel plate. The spacing of the anti-slip groove 101 should be reasonably set according to the tire size and driving speed of the transport vehicle to ensure that the vehicle can always maintain good contact with the surface of the steel plate during driving.

[0049] Through the above specific embodiments, the combined temporary road widening structure for heavy haul transportation of the present invention can effectively solve the problem of insufficient road width during heavy haul transportation. It has the advantages of simple structure, convenient installation, and good stability, and can meet the needs of heavy haul transportation in different scenarios.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular temporary road widening structure for heavy-duty transport, comprising multiple sets of steel plates (1) longitudinally connected to each other, one end of each set of steel plates (1) being disposed on a roadbed (8), and the other end of each set of steel plates (1) being suspended above a recessed area (9) outside the roadbed (8), characterized in that, A counterweight component (3) is installed on the side of the bottom of each group of steel plates (1) away from the recessed area (9). The counterweight components (3) between multiple groups of steel plates (1) are connected to each other. The counterweight components (3) are set in the foundation trench (2) opened in the roadbed (8).

2. The combined temporary road widening structure for heavy cargo transportation according to claim 1, characterized in that, Each steel plate (1) is provided with a thickened part (105) at the bottom, and the counterweight (3) is installed at the bottom of the thickened part (105).

3. The combined temporary road widening structure for heavy cargo transportation according to claim 2, characterized in that, The thickened part (105) has a placement groove (103) on its top; the counterweight component (3) includes a counterweight block (301), a vertical threaded column (303) set on the top of the counterweight block (301), and a fixing nut (305) threaded to the outside of the vertical threaded column (303). The top of the vertical threaded column (303) is inserted into the placement groove (103) and fixed by the fixing nut (305).

4. The combined temporary road widening structure for heavy cargo transportation according to claim 3, characterized in that, The vertical threaded column (303) is also threaded with a support ring (304) located below the fixing nut (305), and the support ring (304) is located at the bottom of the thickened part (105).

5. The combined temporary road widening structure for heavy cargo transportation according to claim 3, characterized in that, A sealing cover (4) is provided inside the placement slot (103).

6. The combined temporary road widening structure for heavy cargo transportation according to claim 5, characterized in that, The sealing cap (4) has a receiving groove (401) at the bottom, and the top of the vertical threaded column (303) and the fixing nut (305) are both located in the receiving groove (401).

7. The combined temporary road widening structure for heavy cargo transportation according to claim 1, characterized in that, Each set of steel plates (1) is provided with a mounting base (104) for fixing adjacent steel plates (1) at one end near the recessed area (9). The top of the mounting base (104) is provided with a mounting lug (106). A first mounting hole (107) is opened in the mounting lug (106). A first threaded rod (108) is provided in two adjacent first mounting holes (107). Both ends of the first threaded rod (108) are threaded with a first nut (109).

8. The combined temporary road widening structure for oversized transport according to any one of claims 1 to 7, characterized in that, The top of the counterweight component (3) is symmetrically provided with fixing plates (302) for fixing adjacent counterweight components (3). The fixing plate (302) is provided with a second mounting hole (306). A second threaded rod (307) is provided adjacent to the second mounting hole (306). Both ends of the second threaded rod (307) are threadedly connected with a second nut (308).

9. The combined temporary road widening structure for heavy cargo transportation according to claim 1, characterized in that, The top of the steel plate (1) has several anti-slip grooves (101) spaced apart.

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