Temporary road slope retaining structure and construction method thereof

Abstract

The invention belongs to the technical field of road engineering, and discloses a temporary road side slope retaining structure and a construction method thereof.The temporary road side slope retaining structure comprises a first steel member and a second steel member which are oppositely arranged, and a plurality of supporting pieces are arranged between the first steel member and the second steel member; the two ends of each supporting piece penetrate through the first steel component and the second steel component and are fixedly connected through locking pieces. According to the temporary road side slope supporting and retaining structure, through cooperation of the first steel component, the second steel component, the supporting piece and the locking piece, rapid construction, plug and play, convenient disassembly and assembly, safety and reliability can be achieved, the temporary road side slope supporting and retaining structure is particularly suitable for a temporary road in a narrow space, and economic waste caused by supporting and retaining of masonry materials can be avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of road engineering, and in particular relates to a temporary road slope retaining structure and a construction method thereof. Background Art

[0002] Temporary construction measures refer to temporary facilities and construction measures implemented during the construction process to ensure the smooth progress of construction activities, ensure safety and order at the construction site, and meet the living and working needs of construction personnel. A temporary construction ramp is a type of temporary road, built to ensure the passage of construction vehicles and personnel. Generally speaking, a temporary ramp for beam access can be constructed by sloping the beams, but this cannot meet the sloping space requirements in a small space, and using masonry materials to set up retaining structures is an economical waste for temporary facilities. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a temporary road slope retaining structure and a construction method thereof, which can be plug-and-play, meet the needs of rapid construction, and has convenient material acquisition and low cost.

[0004] The present invention provides a temporary road slope support structure, comprising: a first steel member and a second steel member arranged opposite to each other, a plurality of support members are arranged between the first steel member and the second steel member, and two ends of each support member pass through the first steel member and the second steel member and are fixedly connected by a locking member.

[0005] The temporary road slope support structure provided by the present invention has a simple structure. Through the cooperation of the first steel member, the second steel member, the support member and the locking member, it can be quickly constructed, plug and play, easy to assemble and disassemble, safe and reliable, and is suitable for engineering scenarios that require rapid deployment, such as temporary slope support for road expansion, foundation pit excavation and protection, and disaster emergency rescue. It is especially suitable for temporary roads in narrow spaces, and can avoid economic waste caused by supporting masonry materials.

[0006] In addition, the temporary road slope retaining structure of the present invention may also have the following additional technical features: In some embodiments, the support member is a threaded steel bar, and the locking member is a nut matching the threaded steel bar.

[0007] In some embodiments, the diameters of the support members are the same or different.

[0008] In some embodiments, the support members are arranged in parallel between the first steel member and the second steel member, and the support members are evenly distributed between the first steel member and the second steel member.

[0009] In some embodiments, a double I-beam extending along the length direction is further provided on the side wall of at least one of the first steel member and the second steel member, and the support member passes through the steel member and the double I-beam in sequence and is fixedly connected by the locking member.

[0010] In some embodiments, a steel gasket is further provided between the double I-beam and the side wall of the steel member.

[0011] In some embodiments, the double I-beam includes a first I-beam and a second I-beam, wherein the first I-beam and the second I-beam are combined to form an I-shaped structure having a cavity therein; The support member passes through the cavities of the steel member and the I-shaped structure in sequence and is fixedly connected by the locking member.

[0012] In some embodiments, mounting holes are provided on the first steel member and the second steel member, and both ends of the support member pass through the mounting holes on the first steel member and the second steel member respectively and are fixedly connected by the locking member.

[0013] A second aspect of the present invention provides a construction method for a temporary road slope retaining structure, comprising: inserting the bottom end portions of the first steel member and the second steel member into the foundation in advance; A plurality of support members are arranged between the first steel member and the second steel member, and two ends of each support member are passed through the first steel member and the second steel member respectively and fixed by a locking member; The cavity formed by the first steel member and the second steel member is filled with solid filling material and compacted to complete the construction of the temporary road slope retaining structure.

[0014] In some embodiments, after passing both ends of each support member through the first steel member and the second steel member, the method further comprises: The support member is tensioned using an anchor, and after tensioning is completed, the support member is fixed using a locking member. After releasing the anchor, the first steel member and the second steel member form a reserved arch. After the solid filler is filled and compacted, the reserved arch returns to a normal state under the compaction action of the solid filler.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 A structural diagram of a temporary road slope retaining structure (not filled with solid filling material) provided in an embodiment of the present application; Figure 2 A first structural diagram of a temporary road slope retaining structure (filled with solid filling material) provided in an embodiment of the present application; Figure 3 A second structural diagram of a temporary road slope retaining structure (filled with solid filling material) provided in an embodiment of the present application; Figure 4 A partially enlarged view of the temporary road slope support structure provided in an embodiment of the present application.

[0017] In the above picture: 10 First steel member; 20 Second steel member; 30 Support member; 40 Locking member; 50 Double I-beam; 501 First I-beam; 502 Second I-beam; 60 Foundation; 70 Solid filling material. DETAILED DESCRIPTION

[0018] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

[0021] Unless the context requires otherwise, throughout the specification and claims, the term "comprising" is to be construed in an open, inclusive sense, ie, meaning "including, but not limited to."

[0022] Throughout the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any one or more embodiments or examples in any appropriate manner.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0024] refer to Figures 1 to 4 An embodiment of the present application provides a temporary road slope support structure, including: a first steel member 10 and a second steel member 20 arranged opposite to each other, a plurality of support members 30 are arranged between the first steel member 10 and the second steel member 20, and both ends of each of the support members 30 pass through the first steel member 10 and the second steel member 20 and are fixedly connected by a locking member 40.

[0025] Specifically, the first and second steel members 10, 20 are positioned opposite each other and, in conjunction with the transverse supports 30, form a rigid frame. The vertically arranged first and second steel members 10, 20 serve as the primary load-bearing framework, resisting lateral pressure from the slope soil and preventing landslides or collapses. The first and second steel members 10, 20 can be inserted into the soil without requiring complex support, making them suitable for confined spaces or emergency projects. They can be removed and recycled, reducing temporary project costs and avoiding the waste of traditional masonry (such as concrete retaining walls). Standardized first and second steel members 10, 20 facilitate transportation and storage management. Among them, the models of the first steel member 10 and the second steel member 20 are comprehensively determined based on the stress analysis and local material conditions. The first steel member 10 and the second steel member 20 can be steel members such as I-beams or steel sheet piles, and the sizes of the two can be the same. For example, for working conditions with high filling height, large soil pressure, and high bending strength, 42b I-beams or above or Larsen steel sheet piles IV can be used. This type of steel has a large section modulus and moment of inertia, which can meet a certain bending capacity.

[0026] The two ends of the support member 30 pass horizontally through the first steel member 10 and the second steel member 20 and extend out of the side walls of the first steel member 10 and the second steel member 20 and are fixed by the locking member 40. No welding or complicated construction is required, and it can be assembled in a modular manner, which is suitable for temporary engineering needs and significantly improves construction efficiency. The length and spacing of the support members 30 can be dynamically adjusted according to the height and slope of the slope to adapt to different geological conditions. The locking member 40 allows for fine-tuning of the preload force to enhance the fit of the structure. Multiple support members 30 are distributed between the first steel member 10 and the second steel member 20 to disperse the load, reduce local stress concentration, and avoid the risk of single-point failure. It is particularly suitable for loose soil or short-term heavy rainfall conditions.

[0027] The temporary road slope support structure provided by the present invention has a simple structure. The first steel member 10 and the second steel member 20 provide a certain rigidity in the vertical direction, and the support member 30 can control the displacement in the lateral direction. Through the cooperation of the first steel member 10, the second steel member 20, the support member 30 and the locking member 40, it can be quickly constructed, plug and play, easy to assemble and disassemble, safe and reliable, and is suitable for engineering scenarios that require rapid deployment, such as temporary slope support for road expansion, foundation pit excavation and enclosure, disaster emergency rescue, etc., and is especially suitable for temporary roads in narrow spaces, and can avoid economic waste caused by supporting masonry materials.

[0028] In some embodiments, reference Figure 4 The support member 30 is a threaded steel bar, and the locking member 40 is a nut that matches the threaded steel bar.

[0029] Specifically, the rebar can be a fine-rolled rebar, and prestressing can be applied to both ends of the rebar through anchors to form a tensioning structure, which limits the lateral displacement of the first steel member 10 and the second steel member 20, ensuring the overall stability of the temporary road slope support structure. Compared with ordinary steel bars, fine-rolled rebar has higher strength and lighter weight, making it easier to transport and quickly install. Moreover, compared with ordinary steel bar binding or welding, threaded connections have stronger anti-slip capabilities, avoiding support failures caused by vibration or soil creep. In particular, when the nut is screwed to the rebar, a steel gasket can also be added between the nut and the rebar.

[0030] In this example, the threaded steel is machined with external threads on its outer surface or ends, which are then tightened with nuts. This eliminates the need for welding or other complex fastening methods, improving construction efficiency. Tightening the nuts applies axial tension to the threaded steel, ensuring a tight fit between the steel member and the slope, enhancing overall stability. For disassembly, simply loosening the nuts allows the support member 30 and the steel member to separate, facilitating reuse and reducing temporary project costs. The nuts can be adjusted in tightness based on soil pressure, flexibly adapting to varying geological conditions and preventing loosening or excessive deformation of the support structure.

[0031] In some embodiments, the diameters of the support members 30 are the same or different.

[0032] For example, the diameters of the multiple supports 30 between the first steel member 10 and the second steel member 20 can be identical, facilitating bulk procurement, processing, and installation, reducing management costs. Furthermore, the consistent tensile stiffness of each support member 30 ensures balanced force distribution across the support structure, avoiding localized stress concentration. If a support member 30 is damaged, it can be directly replaced with a member of the same specification, making repair quick and easy. This approach is suitable for situations where the slope soil is uniform and the lateral pressure distribution is relatively consistent, as well as for temporary projects requiring high construction efficiency and rapid assembly.

[0033] For example, thicker diameter rebar is used in areas with higher earth pressure (such as the lower middle portion of the slope) to provide higher tensile strength. Thinner rebar can be used in areas with lower earth pressure (such as the upper portion) to save costs. When the slope is stratified (e.g., loose in the upper portion and dense in the lower portion) or subjected to uneven loads (such as eccentric pressure), the diameter of the differentiated support member 30 can optimize the structural load. This is suitable for conditions with high slope heights and uneven earth pressure distribution.

[0034] Therefore, the diameter of the support member 30 can be flexibly selected according to actual needs, and lightweight, high-strength or economical support solutions can be provided for different engineering requirements.

[0035] In some embodiments, reference Figure 1 Each of the support members 30 is arranged in parallel between the first steel component 10 and the second steel component 20 , and each of the support members 30 is evenly distributed between the first steel component 10 and the second steel component 20 .

[0036] Specifically, each support member 30 is distributed in parallel and evenly between the first steel member 10 and the second steel member 20, which can form a stable spatial truss structure system and make the load transfer path clear and definite; and the evenly distributed support members 30 can effectively distribute the soil pressure and avoid stress concentration; the parallel arrangement of each support member 30 ensures that the force direction of each support member 30 is consistent, and fully exerts the tensile properties of the material.

[0037] In some embodiments, reference Figures 1 to 4 A double-jointed I-beam 50 extending along the length direction is further provided on the side wall of at least one of the first steel member 10 and the second steel member 20. The support member 30 passes through the steel member and the double-jointed I-beam 50 in sequence and is fixedly connected by the locking member 40.

[0038] Specifically, the combined effect of the double-jointed I-beams 50 significantly increases the longitudinal bending stiffness of the first and second steel members 10, 20, effectively resisting the significant lateral pressure generated by the slope soil. The double-jointed I-beams 50 can be positioned at the mid-beams between the first and second steel members 10, 20. This significantly improves the load-bearing capacity and reliability of the support structure without significantly increasing costs.

[0039] In some embodiments, a steel gasket is further provided between the double I-beam 50 and the side wall of the steel member.

[0040] Specifically, the steel gasket has a low elastic modulus and can effectively absorb the vibration energy generated by wind load, equipment operation or earthquake between the double I-beam 50 and the first steel member 10 and the second steel member 20, thereby reducing the dynamic stress transmitted by the structure; and suppressing high-frequency vibrations through damping characteristics, thereby reducing the risk of resonance of the structure caused by periodic loads (such as vibration of mechanical equipment).

[0041] In some embodiments, reference Figure 4 The double I-beam 50 includes a first I-beam 501 and a second I-beam 502, wherein the first I-beam 501 and the second I-beam 502 enclose an I-shaped structure having a cavity therein; The support member 30 passes through the cavities of the steel member and the I-shaped structure in sequence and is fixedly connected by the locking member 40 .

[0042] Specifically, the cavity serves as a through-channel of the support member 30, allowing the support member 30 to directly pass through the double I-beam 50 and connect with the first steel member 10 or the second steel member 20, forming a rigid node or a semi-rigid node with a clear force transmission path.

[0043] The first I-beam 501 and the second I-beam 502 each include a first support plate and a second support plate disposed opposite each other, with a third support plate disposed between the first and second support plates. The first, second, and third support plates form an I-shaped structure. The first support plate of the first I-beam 501 is disposed in contact with the exterior of the sidewall of the steel member, the first support plate of the second I-beam 502 is stacked on the first support plate of the first I-beam 501, and the second support plate of the second I-beam 502 is stacked on the second support plate of the first I-beam 501. The first and second I-beams 501, 502 are stacked to form an I-shaped structure with a cavity inside. The support member 30 can pass through the first support plates of the first and second I-beams 501, 502, the cavity, and the second support plates of the first and second I-beams 501, 502, and is fixedly connected by a locking member 40. In this example, the support member 30 passes through the cavity, avoiding on-site welding and facilitating rapid construction.

[0044] In some embodiments, mounting holes are provided on the first steel member 10 and the second steel member 20 , and both ends of the support member 30 pass through the mounting holes on the first steel member 10 and the second steel member 20 respectively and are fixedly connected by the locking member 40 .

[0045] Specifically, mounting holes are pre-opened at corresponding positions on the first steel member 10 and the second steel member 20 to ensure that the support member 30 can accurately pass through the first steel member 10 and the second steel member 20 on both sides, greatly reducing on-site welding or cutting operations, and is suitable for rapid installation of prefabricated steel structures.

[0046] A second aspect of the present invention provides a construction method for a temporary road slope retaining structure, comprising: Insert the bottom end portions of the first steel member 10 and the second steel member 20 into the foundation 60 in advance; A plurality of support members 30 are provided between the first steel member 10 and the second steel member 20. Two ends of each support member 30 are passed through the first steel member 10 and the second steel member 20 respectively and fixed by a locking member 40. The solid filling material 70 is filled into the cavity formed by the first steel member 10 and the second steel member 20 and compacted to complete the construction of the temporary road slope retaining structure.

[0047] Specifically, the first steel member 10 and the second steel member 20 are pre-inserted into the foundation 60 (the original soil of the foundation 60), and the insertion depth is determined according to the overall force of the temporary road slope support structure; then the two ends of the support member 30 are respectively passed through the first steel member 10 and the second steel member 20 and fixed by the locking member 40, and finally the solid filling material 70 is filled into the cavity enclosed by the first steel member 10 and the second steel member 20 for compaction. The solid filling material 70 can be soil material on the foundation 60 (such as fill soil at a non-construction location on the foundation 60), which is locally available and easy to use.

[0048] In this example, temporary support is provided by a non-standard composite structure of a first steel member 10, a second steel member 20, and a support member 30 (such as fine-rolled threaded steel bars). The first and second steel members 10, 20 provide a certain degree of vertical rigidity, which controls the lateral displacement of the fine-rolled threaded steel bars to a certain threshold. This structure offers advantages such as easy material acquisition and assembly, minimal footprint, high strength, fast construction (plug-and-play), energy conservation and emission reduction, and a green and low-carbon approach. Furthermore, it is safe and reliable, ensuring uninterrupted construction. This structure has broad application prospects, and is particularly suitable for slope support in confined spaces. The first and second steel members 10, 20 can be formed by stacking multiple I-beams or steel sheet piles, among other steel members.

[0049] It should be noted that the reference Figure 2, the solid filler 70 can be filled to be flush with the upper end surface of the first steel member 10 and the second steel member 20 to form a shoulder support; or, refer to Figure 3 The solid filling material 70 can be filled to exceed the upper end surfaces of the first steel member 10 and the second steel member 20 to form an embankment support.

[0050] In some embodiments, after passing both ends of each support member 30 through the first steel member 10 and the second steel member 20 respectively, the method further includes: The support member 30 is tensioned by an anchor, and after tensioning is completed, the support member 30 is fixed by a locking member 40. After releasing the anchor, the first steel member 10 and the second steel member 20 form a reserved arch. After the solid filler 70 is filled and compacted, the reserved arch returns to a normal state under the compaction action of the solid filler 70.

[0051] Specifically, after the two ends of the support member 30 pass through the mounting holes reserved on the first steel member 10 and the second steel member 20, the support member 30 is first tensioned by an anchor. After the anchor is tensioned, the locking member 40 is used to lock the support member 30 and then the anchor is released, so that the first steel member 10 and the second steel member 20 form a reserved arch. The reserved arch can play a certain pre-deformation adjustment role in the subsequent construction process to cope with possible structural deformation and ensure the quality and stability of the final forming of the structure; solid filler 70 is then filled into the cavity formed by the first steel member 10 and the second steel member 20 for compaction, and the reserved arch returns to a normal state under the compaction action of the solid filler 70. The reserved arch returns to a normal state under the compaction action of the solid filler 70, and the force generated by the compaction of the solid filler 70 is used to automatically adjust the arch of the first steel member 10 and the second steel member 20. No additional complicated adjustment process is required, which simplifies the construction process and ensures that the structure finally reaches the normal state required by the design, thereby improving construction efficiency and structural accuracy.

[0052] In this example, the coordination of the anchor and support member 30, along with the filling of the solid filler 70, actively applies prestress, offsetting subsequent load deformation. Specifically, by tensioning the support member 30 (e.g., fine-rolled threaded steel) through the anchor, the first and second steel members 10 and 20 experience a reverse pre-camber (i.e., a pre-inward bend) before being subjected to external loads. When the solid filler 70 is subsequently compacted and loaded, the pre-camber gradually flattens, returning the structure to its normal state, offsetting the deformation caused by the filler's own weight and the compaction load.

[0053] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to technical solutions formed by a specific combination of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A temporary road slope retaining structure, characterized in that: include: A first steel member (10) and a second steel member (20) are arranged opposite to each other, and a plurality of support members (30) are arranged between the first steel member (10) and the second steel member (20), and two ends of each support member (30) pass through the first steel member (10) and the second steel member (20) and are fixedly connected by a locking member (40).

2. The temporary road slope retaining structure according to claim 1, characterized in that: The support member (30) is a threaded steel bar, and the locking member (40) is a nut matching the threaded steel bar.

3. The temporary road slope retaining structure according to claim 1, characterized in that: The diameters of the supporting members (30) are the same or different.

4. The temporary road slope retaining structure according to claim 1, characterized in that: Each of the support members (30) is arranged in parallel between the first steel member (10) and the second steel member (20), and each of the support members (30) is evenly distributed between the first steel member (10) and the second steel member (20).

5. The temporary road slope retaining structure according to claim 1, characterized in that: A double-jointed I-beam (50) extending along the length direction is further provided on the side wall of at least one of the first steel member (10) and the second steel member (20), and the support member (30) passes through the steel member and the double-jointed I-beam (50) in sequence and is fixedly connected by the locking member (40).

6. The temporary road slope retaining structure according to claim 5, characterized in that: A steel gasket is also provided between the double-jointed I-beam (50) and the side wall of the steel component.

7. The temporary road slope retaining structure according to claim 5, characterized in that: The double I-beam (50) comprises a first I-beam (501) and a second I-beam (502), wherein the first I-beam (501) and the second I-beam (502) enclose an I-shaped structure having a cavity therein; The support member (30) passes through the steel member and the cavity of the I-shaped structure in sequence and is fixedly connected via the locking member (40).

8. The temporary road slope retaining structure according to claim 1, characterized in that: The first steel member (10) and the second steel member (20) are both provided with mounting holes, and both ends of the support member (30) respectively pass through the mounting holes on the first steel member (10) and the second steel member (20) and are fixedly connected by the locking member (40).

9. A construction method for a temporary road slope retaining structure, characterized in that: include: Pre-inserting the bottom end portions of the first steel member (10) and the second steel member (20) into the foundation (60); A plurality of support members (30) are provided between the first steel member (10) and the second steel member (20), and two ends of each support member (30) are passed through the first steel member (10) and the second steel member (20) and fixed by a locking member (40); Solid filling material (70) is filled into the cavity formed by the first steel component (10) and the second steel component (20) and compacted to complete the construction of the temporary road slope retaining structure.

10. The construction method of the temporary road slope retaining structure according to claim 9, characterized in that: After the two ends of each support member (30) are passed through the first steel member (10) and the second steel member (20), the method further comprises: The support member (30) is tensioned using an anchor, and after tensioning is completed, the support member (30) is fixed using a locking member (40). After the anchor is released, the first steel member (10) and the second steel member (20) form a reserved camber, and after the solid filler (70) is filled and compacted, the reserved camber returns to a normal state under the compaction action of the solid filler (70).

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