A combined uplift electric pole foundation structure
Patent Information
- Application Number
- CN202522617303.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-10
AI Technical Summary
其中，现浇混凝土基础通过现场浇筑成型，虽具备一定承载能力，但施工工序繁琐（需钢筋绑扎、支模、养护），施工周期长，且成型后不可移动，无法适配临时供电线路的调整需求，拆除后材料完全报废，资源浪费严重
本申请提供了一种组合式抗拔电杆基础结构，采用拼装式结构设计，可快速实现预制板的吊运、叠放及电杆穿装，无需现场浇筑与长时间养护，大幅缩短临时供电线路的布设周期，基础可直接设置在路面上或埋设在土中，且适配不同尺寸电杆，灵活应对施工区域的多种布设场景。预制板叠放形成的金字塔型结构，利用下大上小的重心分布及与土体的充分接触，显著提升基础的整体稳定性和抗倾覆能力，将电杆所受的拔力、拉力传递至整个基础结构，在松软土层、地下水扰动等复杂地质条件下仍能保障电杆稳固，有效解决现有技术抗拔抗倾覆性能不足的缺陷，为抽水蓄能地下厂房施工的临时供电提供可靠安全保障。组合式结构拆卸便捷，使用完成后可通过圆钢吊环快速吊运至其他施工部位重复使用，避免了现浇基础一次性使用造成的建材浪费，显著提升了材料利用率。
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Figure CN224833802U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water conservancy engineering technology, and in particular to a combined anti-uplift pole foundation structure. Background Technology
[0002] In the construction of pumped-storage underground powerhouses in water conservancy projects, due to the dispersed construction areas and large power supply radii, long-distance temporary power supply lines need to be laid, with poles installed at intervals to support the lines. As the core component for pole fixation, the pole foundation must withstand the weight of the pole itself, the tension of the line, and the loads from complex geological conditions (such as soft soil layers and groundwater), possessing reliable pull-out and overturning resistance; it must also adapt to the flexibility of line layout in temporary power supply scenarios, enabling rapid construction in different installation environments such as road surfaces and underground installations.
[0003] Currently, utility pole foundations are mainly divided into two categories: cast-in-place concrete foundations and simple prefabricated foundations. Cast-in-place concrete foundations, formed on-site, possess a certain load-bearing capacity, but the construction process is cumbersome (requiring rebar tying, formwork, and curing), with a long construction period. Furthermore, once formed, they cannot be moved, making them unsuitable for adjustments to temporary power lines. After demolition, the materials are completely scrapped, resulting in significant resource waste. Simple prefabricated foundations include single precast base slabs secured with anchor bolts, steel support foundations, etc., relying solely on the contact force between the base slab and the soil for load-bearing capacity. Their pull-out and overturning resistance is weak. Some foundations use conventional steel clamps for pole securing, aiming to improve construction convenience, but these often rely on pile foundations, pipe piles, or complex linkage structures to enhance pull-out and overturning resistance. Moreover, the steel clamps in conventional simple prefabricated foundations are only used for surface securing of the pole and do not work in conjunction with the main foundation structure to improve pull-out resistance, failing to meet the comprehensive requirements of reliability, flexibility, and economy for pumped storage underground powerhouse construction. Utility Model Content
[0004] To address or partially address the problems existing in related technologies, this application provides a modular anti-pull-out pole foundation structure. It adopts an assembly-type structural design, which can quickly realize the hoisting, stacking, and pole installation of precast slabs without the need for on-site pouring and long-term curing.
[0005] This application provides a combined pull-out resistant pole foundation structure, including: precast slabs, lifting ring assemblies, and fastening assemblies. The precast slabs have a pole through hole in the center that matches the outer diameter of the pole. Multiple precast slabs are stacked along the pole axis to form a pyramid-shaped structure, and the size of the precast slabs decreases in a gradient along the vertical direction. The lifting ring assembly consists of lifting rings embedded around the perimeter of the precast slabs. The fastening assemblies are located at the bottom of the pyramid-shaped structure and include clamps and fastening connectors. The clamps are fitted around the outer perimeter of the pole, and the fastening connectors pass through both ends of the clamps to securely connect the clamps to the pole.
[0006] The number of precast slabs is 3-5 pieces, and adjacent precast slabs are positioned by positioning protrusions and positioning grooves.
[0007] The clamp includes two symmetrically arranged semi-circular clamps, with the two ends of the semi-circular clamps extending outward to form connecting ear plates, and bolt holes are opened on the connecting ear plates; the fastening connection is a high-strength bolt and a matching nut, with the high-strength bolt passing through the bolt hole and being fastened by the nut.
[0008] The pyramid-shaped structure also has a leveling layer at the bottom, which is a cement mortar leveling layer used to adapt to uneven installation base surfaces.
[0009] The technical solution provided in this application may include the following beneficial effects: This application provides a modular anti-uplift pole foundation structure. Employing a prefabricated design, it allows for rapid hoisting, stacking, and pole installation of precast slabs, eliminating the need for on-site pouring and prolonged curing. This significantly shortens the deployment cycle of temporary power lines. The foundation can be directly placed on the road surface or buried in the soil and is adaptable to poles of different sizes, flexibly addressing various deployment scenarios in the construction area. The pyramid-shaped structure formed by stacked precast slabs, utilizing a bottom-to-top weight distribution and ample contact with the soil, significantly enhances the overall stability and overturning resistance of the foundation. It transfers the uplift and tension forces on the poles to the entire foundation structure, ensuring pole stability even in complex geological conditions such as soft soil layers and groundwater disturbance. This effectively addresses the shortcomings of existing technologies in terms of insufficient uplift and overturning resistance, providing reliable and safe temporary power supply for pumped storage underground power plant construction. The modular structure is easy to disassemble and can be quickly lifted to other construction sites for reuse after use, avoiding the material waste caused by single-use cast-in-place foundations and significantly improving material utilization.
[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0011] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0012] Figure 1 This is a schematic diagram of the combined anti-pull-out pole foundation structure shown in the embodiments of this application; Figure 2 This is a top view of the foundation plate structure of the combined anti-pull-out pole foundation structure shown in the embodiments of this application; Figure 3 This is a top view of the clamp on the base plate as shown in the embodiment of this application.
[0013] Figure label: Explanation of reference numerals in the attached figures: 1-Pole; 2-Precast concrete slab; 3-Clamping hoop; 21-Concrete slab; 22-Round steel lifting ring; 23-Pre-drilled hole for pole. Detailed Implementation
[0014] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0015] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0016] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 this application.
[0017] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0018] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0019] like Figure 1-3The illustrated composite anti-pull-out pole foundation structure includes: precast slabs, lifting ring assemblies, and fastening assemblies. The precast slabs are multiple square precast concrete slabs 2, with steel mesh embedded inside each slab 2 to enhance structural strength. A pre-drilled pole hole 23, matching the outer diameter of the pole 1 to be installed, is located at the center of each slab 2. A wear-resistant polyethylene sleeve can be installed on the inner wall of the pre-drilled pole hole 23, ensuring the length of the sleeve is consistent with the thickness of the precast concrete slab 2. The precast concrete slabs 2 are designed with a gradient decrease in size along the vertical direction, and positioning protrusions and positioning grooves are respectively provided at corresponding positions of adjacent precast concrete slabs 2.
[0020] The lifting ring assembly consists of round steel lifting rings 22 pre-embedded around the concrete slab 21, forming an integrated structure between the round steel lifting rings 22 and the concrete slab 21. The top of the round steel lifting rings 22 is higher than the upper surface of the concrete slab 21 for easy lifting. The inner wall of the round steel lifting rings 22 is coated with an anti-rust coating.
[0021] The fastening assembly is located at the bottom of the pyramid-shaped structure and includes clamps 3 and fastening connectors. Two symmetrically distributed semi-circular clamps 3 bodies are made to form steel clamps 3. Connecting lugs extend outward from both ends of each clamp 3 body to form connecting lugs, and bolt holes are opened on the connecting lugs. Anti-slip rubber pads with anti-slip textures are attached to the inner wall of the steel clamps 3. High-strength bolts and matching nuts that are compatible with the bolt holes are used as fastening connectors.
[0022] Before installation, the installation base surface is treated. The installation position of the pole 1 foundation is determined according to the construction plan. The gravel, loose soil and other debris at the position are cleaned. If there are unevenness such as protrusions, depressions or tilts on the installation base surface, a cement mortar leveling layer is poured on the base surface. The amount of cement mortar is adjusted to make the leveling layer form a horizontal support surface. After the leveling layer reaches the initial setting state, the assembly of the main body of the foundation begins. The hoisting equipment hooks the round steel lifting rings 22 at the four corners of the largest bottom precast concrete slab 2 and lifts it above the leveling layer to complete the precise positioning. Then, in order of decreasing size, the remaining precast concrete slabs 2 are hoisted in sequence and stacked from bottom to top along the axis of the pole 1. The positioning protrusions and positioning grooves on the adjacent precast concrete slabs 2 are matched to achieve precise docking, thereby forming the main body of the pyramid-shaped structure. The utility pole 1 is vertically passed through the pre-drilled pole holes 23 in all the precast concrete slabs 2 of the foundation. After the utility pole 1 is adjusted to a vertical position, a pre-fabricated steel clamp 3 is fitted around the outer periphery of the utility pole 1 at the bottom of the foundation. The anti-slip rubber pad on the inner wall of the clamp 3 is tightly fitted to the outer wall of the utility pole 1. High-strength bolts are passed through the bolt holes on the corresponding connecting lugs of the two clamp bodies, and the matching nuts are tightened to achieve a secure connection between the clamp 3 and the utility pole 1. At this time, the steel clamp 3 and the foundation work together to bear the pull-out force borne by the utility pole 1. After the temporary power supply needs of the construction area are completed, the high-strength bolts and nuts are loosened to remove the steel clamp 3. Then, the precast concrete slabs 2 of each layer are lifted in sequence using round steel lifting rings 22, and all components are lifted to other construction sites where the foundation of the utility pole 1 needs to be laid. The same process is followed to reassemble and reuse the foundation structure, realizing the recycling of the foundation structure.
[0023] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0024] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0025] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0026] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.
[0027] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A combined anti-pull-out pole foundation structure, characterized in that, include: The system comprises a precast slab, a lifting ring assembly, and a fastening assembly. The precast slab has a through-hole at its center that matches the outer diameter of the pole. Multiple precast slabs are stacked along the pole's axis to form a pyramid-shaped structure, with the dimensions of the precast slabs decreasing in a gradient along the vertical direction. The lifting ring assembly consists of lifting rings embedded around the perimeter of the precast slabs. The fastening assembly, located at the bottom of the pyramid-shaped structure, includes a clamp and a fastening connector. The clamp is fitted around the outer perimeter of the pole, and the fastening connector passes through both ends of the clamp to securely connect the clamp to the pole.
2. The combined anti-pullback pole foundation structure according to claim 1, characterized in that, The number of prefabricated panels is 3-5 pieces, and adjacent prefabricated panels are positioned by the cooperation of positioning protrusions and positioning grooves.
3. The combined anti-uplift pole foundation structure according to claim 1, characterized in that, The clamp includes two symmetrically arranged semi-circular clamps, the two ends of which extend outward to form connecting ear plates, and bolt holes are provided on the connecting ear plates; the fastening connection is a high-strength bolt and a matching nut, the high-strength bolt passes through the bolt hole and is fastened by the nut.
4. The combined anti-uplift pole foundation structure according to claim 1, characterized in that, The bottom of the pyramid-shaped structure is also provided with a leveling layer, which is a cement mortar leveling layer used to adapt to uneven installation base surfaces.