Mountain miniature pile foundation for power transmission line
By combining rock-embedded foundation piles with concrete pile caps and adjusting, fixing, and synchronizing mechanisms, the problem of low mechanization in the construction of power transmission line foundations in mountainous areas has been solved, thereby improving stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGLI OILFIELD RUIXIANG ELECTRIC CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-19
AI Technical Summary
The existing power transmission line foundation construction in mountainous areas has a low level of mechanization. Traditional connection methods are complex and time-consuming, making it difficult to meet the requirements of mechanized construction and safety and environmental protection.
By using rock-socketed foundation piles connected to concrete pile caps, combined with adjustment, fixing and synchronization mechanisms, multi-angle installation and fixing can be achieved, simplifying the construction process.
It improves the stability and seismic performance of power transmission line foundations in mountainous areas, simplifies the installation process, adapts to complex terrain, and ensures the safe operation of power transmission lines.
Smart Images

Figure CN224259433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile foundation technology, and in particular to a micropile foundation for power transmission lines in mountainous terrain. Background Technology
[0002] In recent years, with the rapid development of society, economy, and technology, and the rapid growth of electricity consumption, power transmission and transformation projects have seen unprecedented development. However, the foundation construction of transmission line towers still relies mainly on manual labor and supplemented by machinery, resulting in a low level of mechanization. In China, hilly and mountainous terrains account for a large proportion of the country's topography. In these areas, traditional power transmission tower foundations often employ excavation foundations or hole foundations, which have drawbacks such as large concrete volumes, large earthwork excavation volumes, low mechanization, and high project costs. These methods cannot meet the current requirements for mechanized construction, safety, and environmental protection, thus posing new challenges to the foundation design of power transmission towers.
[0003] Existing micropile foundations involve arranging micro steel pipe piles or precast concrete piles around a prefabricated foundation. The top of the piles is connected to the original prefabricated pile foundation using a precast cap to form a new prefabricated foundation. However, the connection between the micropiles and the existing foundation is a key technical issue. Currently, the main method used is grouting connection, which involves binding steel bars to the top of the piles and pouring concrete to expand the area of the original cap and connect it to the top of the micropile. This method has a long construction period and complex construction procedures.
[0004] Therefore, there is an urgent need to provide a micropile foundation for power transmission lines in mountainous areas to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a micropile foundation for power transmission lines in mountainous areas.
[0006] To solve the above-mentioned technical problems, the present invention provides a technical solution: a micropile foundation for a power transmission line in mountainous terrain, including a rock-embedded pile, a concrete cap integrally cast at the top of the rock-embedded pile, a connecting rod integrally cast at the top of the concrete cap, a connecting sleeve integrally cast inside the concrete cap, an adjustment mechanism provided outside the concrete cap, a fixing mechanism provided outside the adjustment mechanism, and a synchronization mechanism provided on one side of the fixing mechanism.
[0007] Through the above technical solution, the rock-embedded foundation piles provide stable support for the entire foundation, the concrete cap bears the weight of the superstructure, and the connecting rods and connecting sleeves are used to connect and fix other components.
[0008] The present invention is further configured such that: the adjustment mechanism includes a foundation shell sleeved outside the concrete foundation, the inner top wall of the foundation shell having an adjustment hole, and the inner surface of the adjustment hole fitting into the outer surface of the connecting rod.
[0009] Through the above technical solution, the foundation casing is installed and fixed at angles of 0 degrees, 30 degrees, 45 degrees, and 60 degrees by adjusting the connecting rod of the concrete foundation through the adjustment hole.
[0010] The present invention is further configured such that: an mounting plate is fixedly installed on the top of the bearing platform shell, and an anchor bolt is fixedly installed on the top of the mounting plate.
[0011] Using the above technical solution, the pier housing is installed to the power transmission line frame via anchor bolts on the mounting plate.
[0012] The present invention is further configured such that: the fixing mechanism includes a fixing ring fixed to the outside of the support shell, and a slider is slidably installed inside the fixing ring.
[0013] The above technical solution restricts the movement direction of the slider by fixing the ring.
[0014] The present invention is further configured such that: one end of the slider is fixedly installed with an insertion rod that extends through and into the interior of the mating sleeve, and the top end of the slider is fixedly installed with a sliding column.
[0015] Through the above technical solution, the sliding column drive rod is inserted into the inside of the docking sleeve through the fixing ring to fix the foundation shell and the concrete foundation.
[0016] The present invention is further configured such that: the synchronization mechanism includes a mounting ring fixed to the top of the fixed ring, a rotating ring is rotatably mounted between the mounting ring and the fixed ring, and a drive rod is fixedly mounted on the outside of the rotating ring.
[0017] With the above technical solution, the rotating ring is manually rotated by a drive rod, and the rotating ring rotates through the mounting ring and the fixing ring.
[0018] The present invention is further configured such that: a groove is provided at the bottom end of the rotating ring, the inside of the groove slides adaptively with the outer surface of the sliding column, and fixing bolts are fixed to the internal threads of the mounting ring, the fixing ring and the rotating ring.
[0019] With the above technical solution, the rotating ring drives the sliding column through the sliding groove to move through the fixed ring, and the fixing bolts fix the mounting ring, the fixed ring and the rotating ring.
[0020] The beneficial effects of this utility model are as follows:
[0021] 1. This utility model, by providing a synchronization mechanism and a fixing mechanism, can fix the concrete foundation and foundation shell, which enhances the stability and durability of the structure, while reducing the number of fixing bolts, simplifying the installation process and improving the seismic performance. It can prevent the foundation shell from loosening due to vibration, so as to adapt to the use needs and environmental conditions in mountainous areas.
[0022] 2. This utility model, by providing an adjustment mechanism, allows for installation at angles such as 0 degrees, 30 degrees, 45 degrees, and 60 degrees of rotation of the pier housing. It can be adjusted according to the direction of the power transmission line, facilitating its application in complex terrain and special line planning scenarios, and ensuring the normal operation and safety of the power transmission line. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is an exploded structural diagram of the present invention;
[0025] Figure 3 This is a structural diagram of the adjustment mechanism and the fixing mechanism of this utility model;
[0026] Figure 4 This is a structural diagram of the synchronization mechanism of this utility model;
[0027] Figure 5 This is a structural diagram of the fixing mechanism of this utility model.
[0028] In the diagram: 1. Rock-socketed foundation pile; 2. Concrete pile cap; 3. Connecting rod; 4. Connecting sleeve; 5. Adjusting mechanism; 501. Pile cap casing; 502. Mounting plate; 503. Anchor bolt; 6. Fixing mechanism; 601. Fixing ring; 602. Sliding block; 603. Insert rod; 604. Sliding column; 7. Synchronization mechanism; 701. Mounting ring; 702. Rotating ring; 703. Drive rod; 704. Slide groove; 705. Fixing bolt. Detailed Implementation
[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0030] Please see Figures 1-5A type of micropile foundation for a power transmission line in mountainous terrain includes a rock-embedded pile 1, a concrete cap 2 integrally cast at the top of the rock-embedded pile 1, a connecting rod 3 integrally cast at the top of the concrete cap 2, a connecting sleeve 4 integrally cast inside the concrete cap 2, and an adjustment mechanism 5 provided outside the concrete cap 2. The adjustment mechanism 5 includes a cap shell 501 sleeved on the outside of the concrete cap 2, with an adjustment hole on the inner top wall of the cap shell 501. The inner surface of the adjustment hole is fitted into the outer surface of the connecting rod 3. An mounting plate 502 is fixedly installed at the top, and an anchor bolt 503 is fixedly installed at the top of the mounting plate 502. The rock-embedded foundation pile 1 provides stable support for the entire foundation. The concrete foundation 2 bears the weight of the superstructure. The connecting rod 3 and the connecting sleeve 4 are used to connect and fix other components. The foundation sleeve 501 is installed and fixed to the connecting rod 3 of the concrete foundation 2 at angles of 0 degrees, 30 degrees, 45 degrees, and 60 degrees through the adjustment hole. The foundation sleeve 501 is installed to the power transmission line frame through the anchor bolt 503 of the mounting plate 502.
[0031] like Figure 1 , Figure 3 and Figure 5 As shown, a fixing mechanism 6 is provided outside the adjusting mechanism 5. The fixing mechanism 6 includes a fixing ring 601 fixed to the outside of the foundation shell 501. A slider 602 is slidably installed inside the fixing ring 601. A rod 603 with one end penetrating through and extending into the docking sleeve 4 is fixedly installed at one end of the slider 602. A sliding column 604 is fixedly installed at the top of the slider 602. The fixing ring 601 restricts the movement direction of the slider 602. The sliding column 604 drives the rod 603 to insert into the docking sleeve 4 through the fixing ring 601, thereby fixing the foundation shell 501 and the concrete foundation 2.
[0032] like Figure 2 and Figure 4 As shown, a synchronization mechanism 7 is provided on one side of the fixing mechanism 6. The synchronization mechanism 7 includes a mounting ring 701 fixed to the top of the fixing ring 601. A rotating ring 702 is rotatably mounted between the mounting ring 701 and the fixing ring 601. A drive rod 703 is fixedly mounted on the outside of the rotating ring 702. A groove 704 is provided at the bottom of the rotating ring 702. The inside of the groove 704 slides adaptively with the outer surface of the sliding column 604. Fixing bolts 705 are fixed to the internal threads of the mounting ring 701, the fixing ring 601 and the rotating ring 702. The rotating ring 702 is manually rotated by the drive rod 703. The rotating ring 702 rotates through the mounting ring 701 and the fixing ring 601. The rotating ring 702 drives the sliding column 604 to move through the fixing ring 601 through the groove 704. The fixing bolts 705 fix the mounting ring 701, the fixing ring 601 and the rotating ring 702.
[0033] In use, the rock-embedded foundation pile 1 provides stable support for the entire foundation, the concrete pile cap 2 bears the weight of the superstructure, the connecting rod 3 and the connecting sleeve 4 are used to connect and fix other components, and the pile cap sleeve 501 is installed and fixed to the connecting rod 3 of the concrete pile cap 2 at angles of 0 degrees, 30 degrees, 45 degrees, and 60 degrees through the adjustment hole. The rotating ring 702 is manually rotated by the drive rod 703, and the rotating ring 702 rotates through the mounting ring 701 and the fixing ring 601. 2. The sliding column 604 is driven by the sliding groove 704 to move through the fixing ring 601. The fixing ring 601 restricts the movement direction of the slider 602. The sliding column 604 drives the insertion rod 603 to be inserted into the docking sleeve 4 through the fixing ring 601 to fix the foundation shell 501 and the concrete foundation 2. The fixing bolt 705 fixes the mounting ring 701, the fixing ring 601 and the rotating ring 702. The foundation shell 501 is installed with the transmission line frame through the anchor bolts 503 of the mounting plate 502.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A mountain micro-pile foundation for a power transmission line comprising a rock-socketed pile (1) characterised in that: The top of the rock-embedded foundation pile (1) is integrally cast with a concrete foundation (2), the top of the concrete foundation (2) is integrally cast with a connecting rod (3), the inside of the concrete foundation (2) is integrally cast with a connecting sleeve (4), the outside of the concrete foundation (2) is provided with an adjustment mechanism (5), the outside of the adjustment mechanism (5) is provided with a fixing mechanism (6), and a synchronization mechanism (7) is provided on one side of the fixing mechanism (6).
2. A mountain micro-pile foundation for a power transmission line according to claim 1, characterized in that: The adjustment mechanism (5) includes a foundation shell (501) sleeved on the outside of the concrete foundation (2). The inner top wall of the foundation shell (501) is provided with an adjustment hole, and the inner surface of the adjustment hole is fitted into the outer surface of the connecting rod (3).
3. A mountain micro-pile foundation of a power transmission line according to claim 2, characterized in that: An mounting plate (502) is fixedly installed on the top of the bearing housing (501), and an anchor bolt (503) is fixedly installed on the top of the mounting plate (502).
4. A mountain micro-pile foundation for a power transmission line according to claim 3, characterized in that: The fixing mechanism (6) includes a fixing ring (601) fixed to the outside of the support shell (501), and a slider (602) is slidably installed inside the fixing ring (601).
5. A mountain micro-pile foundation for a power transmission line according to claim 4, characterized in that: One end of the slider (602) is fixedly installed with a rod (603) that extends through and into the inside of the docking sleeve (4), and a sliding column (604) is fixedly installed at the top of the slider (602).
6. A mountain micro-pile foundation for a power transmission line according to claim 5, characterized in that: The synchronization mechanism (7) includes a mounting ring (701) fixed to the top of the fixed ring (601), a rotating ring (702) rotatably mounted between the mounting ring (701) and the fixed ring (601), and a drive rod (703) fixedly mounted on the outside of the rotating ring (702).
7. A mountain micro-pile foundation for a power transmission line according to claim 6, characterized in that: The bottom end of the rotating ring (702) is provided with a sliding groove (704), the inside of the sliding groove (704) adapts to the outer surface of the sliding column (604), and the mounting ring (701), the fixing ring (601) and the rotating ring (702) are fixed with fixing bolts (705) by internal threads.