Miniature pile foundation with shock insulation function for power transmission line tower and transportation equipment

Abstract

The invention provides a miniature pile foundation with a shock insulation effect for a power transmission line tower and transportation equipment, and belongs to the technical field of power buildings. The miniature pile foundation with the shock insulation function for the power transmission line tower comprises a prefabricated pile foundation body and a shock insulation support, and the prefabricated pile foundation body is used for being fixed to a foundation; the shock insulation support comprises a first connecting plate, an energy absorption structure and a second connecting plate which are connected in sequence, the first connecting plate and the second connecting plate are parallel to each other, the energy absorption structure is used for deforming in a reciprocating mode in the first direction, and the first connecting plate is detachably installed on the precast pile foundation body; the second connecting plate is used for being fixedly connected with a tower body of the power transmission line tower, and the first direction points to the tower body from the foundation. The miniature pile foundation with the shock insulation function for the power transmission line tower is simple in structure and convenient to transport and install, the construction efficiency can be effectively improved, energy is effectively absorbed through the shock insulation support, and the shock insulation performance of the power transmission line tower is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power construction, and in particular relates to a micro pile foundation with a seismic isolation function for a transmission line tower and transportation equipment. Background Art

[0002] Transmission line towers are an important part of transmission lines. They are usually made of steel or reinforced concrete. Transmission line towers are used to support the conductors of transmission lines and transmit electrical energy.

[0003] At present, as the laying area of ​​transmission lines becomes wider and wider, there are more and more transmission line towers in harsh environments such as earthquake-prone areas. If an earthquake or large external force occurs, the transmission line towers are prone to bending and deformation, causing damage to the transmission line towers or even tilting and collapse. Therefore, relevant seismic isolation structures will be set on the transmission line towers to ensure the structural stability of the transmission line towers.

[0004] However, in the existing transmission line towers, such as the Chinese invention patent with application number "202311846158.6" and the Chinese invention patent with application number "201720929513.X", relatively complex seismic isolation structures are used to improve the seismic isolation performance of the transmission line towers, and they need to be constructed and assembled at the construction site, which greatly increases the construction complexity of the transmission line towers and reduces the construction efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is how to improve the construction efficiency while ensuring the seismic isolation performance of the transmission line tower. In view of the shortcomings of the prior art, a micro pile foundation and transportation equipment with seismic isolation for a transmission line tower are provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] In a first aspect, the present invention provides a micro-pile foundation with seismic isolation function for a transmission line pole tower, comprising a precast pile basic body and a seismic isolation bearing, wherein the precast pile basic body is used to be fixed on a foundation; the seismic isolation bearing comprises a first connecting plate, an energy absorbing structure and a second connecting plate connected in sequence, the first connecting plate and the second connecting plate are parallel to each other, the energy absorbing structure is used to reciprocate along a first direction, the first connecting plate is detachably mounted on the precast pile basic body, and the second connecting plate is used to be fixedly connected to the tower body of the transmission line pole tower; the first direction is from the foundation to the tower body.

[0008] Compared with the prior art, the beneficial effects of the micro-pile foundation with seismic isolation function of the transmission line pole tower of the present invention include: a prefabricated pile basic body and a seismic isolation support are arranged to form a micro-pile foundation with seismic isolation function of the transmission line pole tower, wherein the prefabricated pile basic body is a prefabricated structure, which can be directly transported to the construction site together with the seismic isolation support for assembly and installation after being prefabricated in the factory workshop, without the need for pouring construction on the construction site, effectively reducing the construction complexity of the transmission line pole tower, and thus improving the construction efficiency; a first connecting plate, an energy absorbing structure and a second connecting plate connected in sequence are arranged to form a seismic isolation support, wherein the first connecting plate and the second connecting plate are detachably connected to the prefabricated pile basic body and the tower body of the transmission line pole tower, respectively, so that the seismic isolation support and the prefabricated pile basic body can be realized. The stable connection between the pile basic body and the tower body ensures the structural stability of the entire transmission line tower, and the installation convenience of the transmission line tower can be further improved through the detachable connection, thereby further improving the construction efficiency. The tower body and the prefabricated pile basic body are distributed up and down in the vertical direction, and the energy-absorbing structure can deform back and forth in the first direction, that is, the vertical direction. When the transmission line tower is subjected to external forces such as earthquakes, the deformation is concentrated on the seismic isolation bearing through force transmission, and it can return to its original state after the external force disappears, effectively absorbing the energy generated by the external force transmission, ensuring the seismic isolation performance of the transmission line tower, reducing the deformation of the entire transmission line tower, so that the transmission line tower does not produce excessive vertical deformation during use, and does not cause damage such as tilting or collapse.

[0009] Optionally, the energy absorbing structure includes a first working piece, which includes a lead core, a rigid plate and an elastic pad. There are multiple rigid plates and multiple elastic pads, which are alternately stacked along the first direction. The lead core passes through the center of the rigid plate and the center of the elastic pad along the first direction.

[0010] Optionally, the first working piece also includes a first sealing plate, a second sealing plate and an elastic protective layer, the elastic protective layer encloses a hollow structure with openings at both ends, the lead core, the rigid plate and the elastic pad are all located in the hollow structure, the first sealing plate and the second sealing plate are respectively covered and installed at the two open ends of the hollow structure, and are respectively fixedly connected to the second connecting plate and the first connecting plate.

[0011] Optionally, the energy absorbing structure also includes a second working piece, which is in plurality and evenly spaced around the central axis of the first working piece, and has a first end, an elastic portion, and a second end arranged in sequence, the first end being installed in the first connecting hole of the first connecting plate, and the second end being installed in the second connecting hole of the second connecting plate.

[0012] Optionally, the micro-pile foundation with seismic isolation function of the transmission line pole tower also includes connecting bolts, which include a second nut, a gasket, an anchor rod, an anchor plate and a stiffening plate. One end of the anchor rod is fixedly connected to the anchor plate, and the anchor plate and the end surface of the second connecting plate facing the energy absorption structure are abutted against each other. The other end of the anchor rod is used to pass through the second threaded hole on the second connecting plate and penetrate into the tower body so as to be detachably connected to the tower body through a gasket and the second nut. The stiffening plate is fixedly connected to the anchor plate and the anchor rod respectively.

[0013] Optionally, the micro-pile foundation with seismic isolation function of the transmission line tower also includes a stirrup sleeve, the stirrup sleeve includes a screw, a sleeve, a connecting rod and a first nut, one end of the screw is fixedly connected to the first nut, the first nut and the end face of the first connecting plate facing the energy absorption structure are abutted, the other end of the screw is used to pass through the first threaded hole on the first connecting plate, and is detachably connected to one end of the sleeve, one end of the connecting rod is connected to the other end of the sleeve, the other end of the connecting rod is placed in the prefabricated pile basic body along the first direction, and is bent and extended along the second direction, and the first direction and the second direction are cross-arranged.

[0014] In a second aspect, the present invention also provides a transport device, including a transport vehicle and a limiting structure, wherein the transport vehicle is used to carry the limiting structure, the tower body of the transmission line pole tower and the prefabricated pile basic body of the micro-pile foundation with seismic isolation function of the above-mentioned transmission line pole tower, and the limiting structure is used to carry and fix the seismic isolation support of the micro-pile foundation with seismic isolation function of the transmission line pole tower.

[0015] Compared with the prior art, the beneficial effects of the transportation equipment of the present invention include: after the preparation of the prefabricated pile basic body, tower body and seismic isolation bearing is completed in the factory workshop, the prefabricated pile basic body and tower body can be hoisted onto the transport vehicle, and the seismic isolation bearing is supported and fixed by the limiting structure, and then the limiting structure is hoisted onto the transport vehicle, thereby ensuring the stability of the seismic isolation bearing during transportation, avoiding the adverse effects of vibrations occurring during transportation on the seismic isolation bearing, and ensuring the shock-absorbing performance after the subsequent installation of the seismic isolation bearing is completed.

[0016] Optionally, the limiting structure includes a base and a lifting ear, the base is provided with a limiting groove, the limiting grooves are two, and the two limiting grooves are arranged at intervals so that the first connecting plate and the second connecting plate of the seismic isolation bearing are respectively at least partially correspondingly placed in the two limiting grooves, and the lifting ear is arranged on the base, the lifting ear is used to connect a fixing rope, and the fixing rope is used to bind the seismic isolation bearing and / or connect lifting equipment.

[0017] Optionally, there are two bases, and the two bases are arranged at intervals so that the seismic isolation bearing is placed between the two bases. A support platform is provided on the end surface of any one of the bases facing the other base, and a support surface matching the shape of the energy absorption structure of the seismic isolation bearing is provided on the support platform. The support surfaces of the two support platforms cooperate to form a accommodating cavity for accommodating the energy absorption structure, and the fixing rope is also used to connect the lifting ears of the two bases. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] Figure 1 : A schematic diagram of the structure of a transmission line tower in an embodiment of the present invention;

[0020] Figure 2 : A schematic structural diagram of a seismic isolation support in an embodiment of the present invention;

[0021] Figure 3 : A schematic diagram of the structure of the first connecting plate or the second connecting plate in an embodiment of the present invention;

[0022] Figure 4 : A schematic diagram of the structure of the connecting bolts in an embodiment of the present invention;

[0023] Figure 5 : A schematic structural diagram of a stirrup sleeve in an embodiment of the present invention;

[0024] Figure 6 : Schematic diagram of the coordination between the seismic isolation support and the limiting structure in one embodiment of the present invention;

[0025] Figure 7 : A schematic structural diagram of a seismic isolation support installed on a limiting structure in one embodiment of the present invention;

[0026] Figure 8 : A schematic diagram of the coordination between the seismic isolation support and the limiting structure in another embodiment of the present invention;

[0027] Fig. 9 : A schematic structural diagram of a seismic isolation bearing installed on a limiting structure in another embodiment of the present invention.

[0028] Among them, 1-prefabricated pile basic body, 11-prefabricated foundation, 12-prefabricated micro pile, 2-seismic isolation support, 21-first connecting plate, 211-first threaded hole, 212-first connecting hole, 22-energy absorption structure, 221-first working piece, 2211-lead core, 2212-rigid plate, 2213-elastic pad, 2214-first sealing plate, 2215-second sealing plate, 2216-elastic protective layer, 222-second working piece, 2221-first end, 2222 -elastic part, 2223-second end, 23-second connecting plate, 231-second threaded hole, 232-second connecting hole, 3-connecting bolt, 31-second nut, 32-gasket, 33-anchor rod, 34-anchor plate, 35-stiffening plate, 4-stirrup sleeve, 41-screw rod, 42-sleeve, 43-connecting rod, 44-first nut, 5-limiting structure, 51-base, 511-limiting groove, 52-lifting ear, 53-support platform, 531-support surface, 6-tower body. DETAILED DESCRIPTION

[0029] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments and drawings. Although certain embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only used for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0030] It should be noted that the Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the Y axis in the drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the Y axis represents the front side, and the reverse direction of the Y axis represents the back side; the X axis in the drawings represents the left and right position, and the positive direction of the X axis represents the right side, and the reverse direction of the X axis represents the left side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] First, as Figure 1As shown, an embodiment of the present invention provides a micro pile foundation with seismic isolation function for a transmission line tower, comprising a precast pile basic body 1 and a seismic isolation bearing 2, wherein the precast pile basic body 1 is used to be fixed on a foundation; the seismic isolation bearing 2 comprises a first connecting plate 21, an energy absorbing structure 22 and a second connecting plate 23 connected in sequence, the first connecting plate 21 and the second connecting plate 23 are parallel to each other, the energy absorbing structure 22 is used to reciprocate deformation along a first direction, the first connecting plate 21 is detachably mounted on the precast pile basic body 1, and the second connecting plate 23 is used to be fixedly connected to a tower body 6 of the transmission line tower; the first direction is from the foundation to the tower body 6.

[0032] Specifically, Figure 1 As shown, the precast pile basic body 1 is a precast structure, which can be obtained by pouring concrete in a factory workshop, and after pouring is completed, it is transported to the construction site for installation, wherein the precast pile basic body 1 is composed of a precast base 11 and a precast micropile 12, the precast micropile 12 is cast by lightweight concrete and can be inserted into the foundation, the precast base 11 is cast by high-strength concrete, and is fixedly connected to the precast micropile 12, and is placed on the foundation as the foundation of the entire transmission line tower; the first connecting plate 21 and the second connecting plate 23 are metal plate structures, and the first connecting plate 21 and the second connecting plate 23 can be detachably connected to the precast pile basic body 1 and the tower body 6 respectively by screwing or riveting; as shown Figure 1 As shown, the first direction is the Z-axis direction, that is, the vertical direction; the energy-absorbing structure 22 can be an elastic structure, which absorbs the energy generated by the earthquake through elastic deformation, or it can be a honeycomb structure, which absorbs the energy generated by the earthquake through deformation, or it can be made of a mesh memory alloy material, which absorbs the energy generated by the earthquake and restores its shape after the earthquake.

[0033] In this embodiment, Figure 1As shown, a precast pile basic body 1 and a seismic isolation support 2 are arranged to form a micro pile foundation with seismic isolation effect for a transmission line tower, wherein the precast pile basic body 1 is a precast structure, which can be directly transported to the construction site together with the seismic isolation support 2 for assembly and installation after being prefabricated in a factory workshop, without the need for pouring construction on the construction site, effectively reducing the construction complexity of the transmission line tower and thus improving the construction efficiency; on this basis, a first connecting plate 21, an energy absorbing structure 22 and a second connecting plate 23 connected in sequence are arranged to form a seismic isolation support 2, wherein the first connecting plate 21 and the second connecting plate 23 are detachably connected to the precast pile basic body 1 and the tower body 6 of the transmission line tower, respectively, which can realize the stability of the seismic isolation support 2 with the precast pile basic body 1 and the tower body 6 The fixed connection ensures the structural stability of the entire transmission line tower, and the installation convenience of the transmission line tower can be further improved through the detachable connection, thereby further improving the construction efficiency. The tower body 6 and the prefabricated pile basic body 1 are distributed up and down in the vertical direction, and the energy-absorbing structure 22 can deform back and forth in the first direction, that is, the vertical direction. In this way, when the transmission line tower is subjected to external forces such as earthquakes, the deformation is concentrated on the seismic isolation bearing 2 through the transmission of force, and it can return to its original state after the external force disappears, effectively absorbing the energy generated by the external force transmission, ensuring the seismic isolation performance of the transmission line tower, reducing the deformation of the entire transmission line tower, so that the transmission line tower does not produce excessive vertical deformation during use, and does not cause damage such as tilting or collapse.

[0034] It should be noted that the prefabricated micropile 12 is made of lightweight concrete. Compared with ordinary concrete, lightweight concrete has the characteristics of light weight, high strength, good flame retardancy, long life and good seismic performance. It is easy to process and transport and can improve the strength and durability of the prefabricated pile basic body 1, ensure the safety of the prefabricated micropile 12, and extend its service life.

[0035] It should be noted that after the prefabricated pile basic body 1 and the seismic isolation bearing 2 are transported to the construction site, the construction process of the transmission line tower includes: the first step is to excavate a foundation pit on the foundation; the second step is to place the prefabricated cap 11 in the foundation pit; the third step is to insert the prefabricated micro pile 12 into the prefabricated cap 11, connect the prefabricated micro pile 12 to the prefabricated cap 11 with bolts, and inject cement mortar into the gap between the prefabricated micro pile 12 and the foundation pit to increase the stability and strength of the prefabricated micro pile 12; the fourth step is to connect the seismic isolation bearing 2 to the prefabricated pile basic body 1; the fifth step is to connect the seismic isolation bearing 2 to the tower body 6.

[0036] Alternatively, if Figure 1 and Figure 2As shown, the energy absorbing structure 22 includes a first working piece 221, and the first working piece 221 includes a lead core 2211, a rigid plate 2212 and an elastic pad 2213. There are multiple rigid plates 2212 and elastic pads 2213, which are alternately stacked along a first direction. The lead core 2211 passes through the center of the rigid plate 2212 and the center of the elastic pad 2213 along the first direction.

[0037] Specifically, the rigid plate 2212 may be a metal plate, for example, the rigid plate 2212 is a steel plate; the elastic pad 2213 may be a rubber pad or an elastic gasket.

[0038] In this optional embodiment, if Figure 1 and Figure 2 As shown, a first working piece 221 is provided as a part of the energy absorbing structure 22, and a lead core 2211, a rigid plate 2212 and an elastic pad 2213 are provided to form the first working piece 221, wherein a plurality of rigid plates 2212 and elastic pads 2213 are provided, and are alternately stacked along a first direction. In this way, the entire first working piece 221 has elastic deformation capability and a certain structural strength, and can support the constant weight of the tower body 6 in the vertical direction, and has good flexibility in the horizontal direction to meet On this basis, a lead core 2211 is arranged to penetrate the center of the rigid plate 2212 and the center of the elastic pad 2213 along the first direction. In this way, after the transmission line tower is installed, the lead core 2211 is located on the vertical center axis of the transmission line tower. When the transmission line tower is subjected to external force, the hysteresis damping or viscous damping of the lead core 2211 is used to absorb and dissipate vibration energy, thereby improving the damping of the transmission line tower, thereby achieving the purpose of reducing the external force.

[0039] Alternatively, if Figure 2 As shown, the first working piece 221 also includes a first sealing plate 2214, a second sealing plate 2215 and an elastic protective layer 2216. The elastic protective layer 2216 encloses a hollow structure with openings at both ends. The lead core 2211, the rigid plate 2212 and the elastic pad 2213 are all located in the hollow structure. The first sealing plate 2214 and the second sealing plate 2215 are respectively covered and installed at the two open ends of the hollow structure, and are respectively fixedly connected to the second connecting plate 23 and the first connecting plate 21.

[0040] Specifically, the elastic protective layer 2216 may be a rubber layer or an elastic metal layer.

[0041] In this optional embodiment, if Figure 2As shown, on the basis of setting the lead core 2211, the rigid plate 2212 and the elastic pad 2213 to form the first working piece 221, the first sealing plate 2214, the second sealing plate 2215 and the elastic protective layer 2216 are also set as part of the first working piece 221, wherein the elastic protective layer 2216 encloses a hollow structure with openings at both ends, and the lead core 2211, the rigid plate 2212 and the elastic pad 2213 are all located in the hollow structure, thereby playing a role in protecting the lead core 2211, the rigid plate 2212 and the elastic pad 2213, and ensuring the working stability of the first working piece 221; on this basis, the first sealing plate 2214 and the second sealing plate 2215 are also respectively covered and installed at the two open ends of the hollow structure, and are respectively fixedly connected to the second connecting plate 23 and the first connecting plate 21. Such an arrangement can not only ensure the stable connection between the energy absorbing structure 22 and the first connecting plate 21 and the second connecting plate 23 respectively, thereby ensuring the installation stability of the seismic isolation bearing 2, but also further enhance the protection of the lead core 2211, the rigid plate 2212 and the elastic pad 2213 through the cooperation of the first sealing plate 2214, the second sealing plate 2215 and the elastic protective layer 2216, thereby further ensuring the working stability of the first working piece 221.

[0042] Alternatively, if Figures 1 to 3 As shown, the energy absorbing structure 22 also includes a second working piece 222, which has multiple second working pieces 222 and is evenly spaced around the central axis of the first working piece 221. The second working piece 222 has a first end 2221, an elastic portion 2222 and a second end 2223 arranged in sequence. The first end 2221 is installed in the first connecting hole 212 of the first connecting plate 21, and the second end 2223 is installed in the second connecting hole 232 of the second connecting plate 23.

[0043] Specifically, the central axis of the first working piece 221 is parallel to the first direction, i.e., the Z axis. There are four second working pieces 222, and the four second working pieces 222 are evenly spaced around the circumference of the first working piece 221. Of course, the number of the second working pieces 222 can also be any number other than four; the elastic part 2222 can be a spring, an elastic block or an elastic rod, or it can be composed of an elastic rod and a spring sleeved thereon.

[0044] In this optional embodiment, if Figures 1 to 3As shown, the energy absorbing structure 22 is provided with a second working piece 222 while providing a first working piece 221, wherein the second working piece 222 has a plurality of pieces and is evenly spaced along the circumference of the first working piece 221. In this way, by providing the first working piece 221 along the central axis and symmetrically distributing the second working piece 222 about the center of the first working piece 221, the balance stability of the energy absorbing structure 22 when absorbing energy can be effectively guaranteed, thereby ensuring the shock absorption performance of the seismic isolation bearing 2; on this basis, a first end 2221, an elastic portion 2222 and a second end 2223 arranged in sequence are provided to form the second working piece 222, wherein the first end 2221 is installed in the first connecting hole 212 of the first connecting plate 21, and the second end 2223 is installed in the second connecting hole 232 of the second connecting plate 23. In this way, both the structural stability of the second working piece 222 and the connection stability of the second working piece 222 with the first connecting plate 21 and the second connecting plate 23 respectively can be guaranteed, thereby ensuring the structural stability of the seismic isolation bearing 2.

[0045] It should be noted that, for example, the elastic part 2222 is a spring, the upper part of the spring is drawn to form the second end 2223, and passes through the second connecting hole 232 of the second connecting plate 23 for stable connection, and sufficient length is reserved to ensure that it can pass through the tower foot plate of the tower body 6 and be screwed into the nut for fixing, the lower part of the spring has a thread to form the first end 2221, which can be screwed into the first connecting hole 212 of the lower first connecting plate 21, and penetrate into 2 / 3 of the first connecting hole 212, and 1 / 3 of the thickness is reserved for piercing and plug welding. The various structures of the second working piece 222 can be processed in advance in the factory workshop and directly transported to the site for installation, or directly assembled in the factory workshop and then transported to the site.

[0046] Alternatively, if Figure 1 and Figure 4 As shown, the micro pile foundation with seismic isolation function of the transmission line tower also includes a connecting bolt 3, which includes a second nut 31, a gasket 32, an anchor rod 33, an anchor plate 34 and a stiffening plate 35. One end of the anchor rod 33 is fixedly connected to the anchor plate 34, and the anchor plate 34 abuts against the end surface of the second connecting plate 23 facing the energy absorbing structure 22. The other end of the anchor rod 33 is used to pass through the second threaded hole 231 on the second connecting plate 23 and penetrate into the tower body 6, so as to be detachably connected to the tower body 6 through the gasket 32 ​​and the second nut 31, and the stiffening plate 35 is fixedly connected to the anchor plate 34 and the anchor rod 33 respectively.

[0047] Specifically, there are a plurality of stiffening plates 35 , which may be four stiffening plates 35 , and the plurality of stiffening plates 35 are evenly spaced around the axial direction of the anchor rod 33 .

[0048] In this optional embodiment, if Figure 1 and Figure 4As shown, in order to ensure the stable connection between the second connecting plate 23 and the tower body 6, a connecting bolt 3 is further provided, and a second nut 31, a gasket 32, an anchor rod 33, an anchor plate 34 and a stiffening plate 35 are provided to form the connecting bolt 3, wherein one end of the anchor rod 33 is fixedly connected to the anchor plate 34, and the anchor plate 34 and the end surface of the second connecting plate 23 facing the energy absorbing structure 22 are abutted against each other, so that the position of the anchor rod 33 is stable through the limiting of the anchor plate 34 and the second connecting plate 23, and at the same time, the other end of the anchor rod 33 can pass through the second The threaded hole 231 is passed through the tower body 6 so as to be detachably connected to the tower body 6 through the gasket 32 ​​and the second nut 31. In this way, the threaded connection between the anchor rod 33 and the second connecting plate 23 and the detachable connection with the tower body 6 can ensure the stable connection between the seismic isolation bearing 2 and the tower body 6; on this basis, the stiffening plate 35 is fixedly connected to the anchor plate 34 and the anchor rod 33 respectively. In this way, the structural strength between the anchor plate 34 and the anchor rod 33 can be improved by the setting of the stiffening plate 35, thereby ensuring the stable connection between the seismic isolation bearing 2 and the tower body 6.

[0049] It should be noted that the connecting bolts 3 are provided in this embodiment to connect the tower body 6 and the seismic isolation support 2, which can replace the traditional anchor bolts. Of course, in other embodiments of the present invention, anchor bolts can also be used to replace the connecting bolts 3.

[0050] Alternatively, if Figure 1 and Figure 5 As shown, the micro pile foundation with seismic isolation function of the transmission line tower also includes a stirrup sleeve 4, which includes a screw 41, a sleeve 42, a connecting rod 43 and a first nut 44. One end of the screw 41 is fixedly connected to the first nut 44, and the first nut 44 abuts against the end face of the first connecting plate 21 facing the energy absorbing structure 22. The other end of the screw 41 is used to pass through the first threaded hole 211 on the first connecting plate 21, and is detachably connected to one end of the sleeve 42. One end of the connecting rod 43 is connected to the other end of the sleeve 42, and the other end of the connecting rod 43 is placed in the prefabricated pile basic body 1 along the first direction, and is bent and extended along the second direction. The first direction and the second direction are cross-arranged.

[0051] Specifically, Figure 5 As shown, the second direction is the Y-axis direction, that is, the horizontal direction, and the connecting rod 43 is a steel bar, and forms an L-shaped rod structure by extending along the first direction and bending and extending along the second direction.

[0052] In this optional embodiment, if Figure 1 and Figure 5As shown, in order to ensure the stable connection between the seismic isolation bearing 2 and the precast pile basic body 1, a stirrup sleeve 4 is further provided, and a screw 41, a sleeve 42, a connecting rod 43 and a first nut 44 are provided to form the stirrup sleeve 4, wherein one end of the screw 41 is fixedly connected to the first nut 44, the first nut 44 abuts against the end face of the first connecting plate 21 facing the energy absorbing structure 22, and the other end of the screw 41 is used to pass through the first threaded hole 211 on the first connecting plate 21, and is detachably connected to one end of the sleeve 42. In this way, the position of the screw 41 can be limited by the abutment between the first nut 44 and the first connecting plate 21, thereby ensuring the accuracy of the installation position of the screw 41, and the screw 41 can be threadedly connected to the first threaded hole 211 of the first connecting plate 21. , ensuring that the connection between the screw rod 41 and the first connecting plate 21 is stable, and the connection between the screw rod 41 and the sleeve 42 can also be realized by a threaded connection; on this basis, one end of the connecting rod 43 is connected to the other end of the sleeve 42, and the other end of the connecting rod 43 is placed in the precast pile basic body 1 along the first direction, and is bent and extended along the second direction, and the first direction and the second direction are cross-arranged. In this way, the L-shaped connecting rod 43 can not only be stably connected to the precast pile basic body 1, but also the pull-out resistance between the connecting rod 43 and the precast pile basic body 1 can be ensured through the limiting of the L-shaped structure, and the connecting rod 43 is connected to the sleeve 42, so that the entire stirrup sleeve 4 is connected as a stable whole, and at the same time, a stable connection between the seismic isolation bearing 2 and the precast pile basic body 1 is realized.

[0053] It should be noted that during the prefabrication process of the prefabricated foundation 11, a positioning plate needs to be fixed on the upper surface of the main column of the prefabricated foundation 11, and a concrete protective layer thickness is reserved at the bottom. Then the connecting rod 43 of the stirrup sleeve 4 passes through the positioning plate and is tied to the steel bars in the prefabricated foundation 11. Only then can the concrete be poured. After it solidifies, the positioning plate is removed. The positioning plate mainly plays a leveling role to facilitate the subsequent connection of the first connecting plate 21 of the seismic isolation bearing 2 with the main column of the prefabricated foundation 11. When installing the seismic isolation bearing 2, the sleeve 42 is screwed with the connecting rod 43. First, the first threaded hole 211 of the first connecting plate 21 is aligned with the sleeve 42, and then the screw 41 is inserted into the first threaded hole 211. The screw 41 and the sleeve 42 are threadedly connected by rotating the screw 41 to realize the detachable connection between the first connecting plate 21 and the prefabricated pile basic body 1.

[0054] Second, as Figure 7 As shown, one embodiment of the present invention provides a transport device, including a transport vehicle and a limiting structure 5, the transport vehicle is used to carry the limiting structure 5, the tower body 6 of the transmission line tower and the prefabricated pile basic body 1 of the micro-pile foundation with seismic isolation function of the above-mentioned transmission line tower, and the limiting structure 5 is used to carry and fix the seismic isolation support 2 of the micro-pile foundation with seismic isolation function of the transmission line tower.

[0055] Specifically, the limiting structure 5 can be a wrapping structure with an inner chamber, or a box structure with a chamber opened at one end.

[0056] In this embodiment, Figure 7 As shown, after the preparation of the precast pile basic body 1, the tower body 6 and the seismic isolation bearing 2 is completed in the factory workshop, the precast pile basic body 1 and the tower body 6 can be hoisted onto the transport vehicle, and the seismic isolation bearing 2 is supported and fixed by the limiting structure 5, and then the limiting structure 5 is hoisted onto the transport vehicle to ensure the stability of the seismic isolation bearing 2 during transportation, avoid the adverse effects of vibrations and the like during transportation on the seismic isolation bearing 2, and ensure the shock-absorbing performance of the subsequent seismic isolation bearing 2 after installation.

[0057] It should be noted that the seismic isolation bearing 2 needs to be properly packaged by the limiting structure 5 during transportation to ensure that it is not damaged during transportation. The packaging should include seismic isolation, moisture-proof, dust-proof and other measures to protect the bearing from the influence of the external environment. Among them, the protection measures during transportation include: during transportation, the seismic isolation bearing 2 should be protected from severe vibration and impact to prevent damage to the internal structure of the seismic isolation bearing 2. At the same time, care should be taken to prevent the seismic isolation bearing 2 from being contaminated by oil and water, as well as human damage and collision.

[0058] On this basis, after the seismic isolation bearing 2 is transported to the site through the limiting structure 5 and the transport vehicle, a pre-installation inspection is required: Before installation, the seismic isolation bearing 2 should be fully inspected to ensure that its surface is smooth, the first connecting plate 21 and the second connecting plate 23 are firm and tight, and the position of the lead core 2211 is consistent with the design position, and the elevation deviation should be between 3.0mm-5.0mm.

[0059] Through the above measures, the safety and stability of the seismic isolation bearing 2 during transportation and installation can be effectively guaranteed.

[0060] Alternatively, if Figure 6 and Figure 7 As shown, the limiting structure 5 includes a base 51 and a lifting ear 52. The base 51 is provided with a limiting groove 511. There are two limiting grooves 511. The two limiting grooves 511 are arranged at intervals so that the first connecting plate 21 and the second connecting plate 23 of the seismic isolation bearing 2 are respectively at least partially placed in the two limiting grooves 511. The lifting ear 52 is arranged on the base 51. The lifting ear 52 is used to connect the fixing rope, and the fixing rope is used to bind the seismic isolation bearing 2 and / or connect the lifting equipment.

[0061] Specifically, the cross-sectional shape of the limiting groove 511 is consistent with the cross-sectional shape of the first connecting plate 21 and the second connecting plate 23; the number of the ears 52 can be multiple, and the multiple ears 52 are evenly spaced along the circumference of the base 51, wherein, Figure 6As shown, the lifting lug 52 is provided with cross-distributed through holes, and a fixing rope such as a steel wire rope can be connected to the lifting lug 52 by passing through the through holes.

[0062] In this optional embodiment, if Figure 6 and Figure 7 As shown, a base 51 and a lifting ear 52 are provided to form a limiting structure 5, wherein a limiting groove 511 is provided on the base 51, and the limiting groove 511 has two, and the two limiting grooves 511 are arranged at intervals, so that the first connecting plate 21 and the second connecting plate 23 are respectively at least partially placed in the two limiting grooves 511. In this way, after the first connecting plate 21 and the second connecting plate 23 are respectively placed in the two limiting grooves 511, the limiting of the first connecting plate 21 and the second connecting plate 23 can be achieved through the limiting grooves 511, and the bottom The seat 51 carries and limits the seismic isolation bearing 2 to prevent the seismic isolation bearing 2 from moving during transportation, thereby ensuring the structural stability of the seismic isolation bearing 2; on this basis, a lifting ear 52 is arranged on the base 51, and the lifting ear 52 is used to connect the fixing rope, and the fixing rope is used to bind the seismic isolation bearing 2 and / or connect the lifting equipment. In this way, through the cooperation of the lifting ear 52 and the fixing rope, the seismic isolation bearing 2 can be fixed on the limiting structure 5, and the limiting structure 5 can be lifted, thereby ensuring the convenience of movement of the limiting structure 5.

[0063] Different from the above-mentioned embodiment, in another embodiment of the present invention, a transport device is provided, such as Figure 8 and Fig. 9 As shown, there are two bases 51, and the two bases 51 are arranged at an interval so that the seismic isolation bearing 2 is placed between the two bases 51. A support platform 53 is provided on the end face of any base 51 facing the other base 51, and a support surface 531 matching the shape of the energy absorption structure 22 of the seismic isolation bearing 2 is provided on the support platform 53. The support surfaces 531 of the two support platforms 53 cooperate to form a accommodating cavity for accommodating the energy absorption structure 22, and the fixing rope is also used to connect the ears 52 of the two bases 51.

[0064] Specifically, Figure 8 As shown, the support surface 531 on the support platform 53 is a curved surface, and a flexible layer may be laid on the support surface 531 to avoid a rigid collision between the support surface 531 and the energy absorbing structure 22 .

[0065] In this optional embodiment, if Figure 8 and Fig. 9As shown, two bases 51 are provided, and the two bases 51 are arranged at intervals so that the seismic isolation bearing 2 is placed between the two bases 51. A support platform 53 is provided on the end face of any base 51 facing the other base 51, and a support surface 531 matching the shape of the energy absorbing structure 22 of the seismic isolation bearing 2 is provided on the support platform 53. The support surfaces 531 of the two support platforms 53 cooperate to form a accommodating cavity for accommodating the energy absorbing structure 22. In this way, the seismic isolation bearing 2 can be further fixed by the limiting groove 511, and the energy absorbing structure 22 can be effectively protected by the accommodating cavity, thereby ensuring the stability of the energy absorbing structure 22 during transportation. On this basis, the lifting ears 52 of the two bases 51 can be connected by fixing ropes to further improve the structural stability of the limiting structure 5 during transportation.

[0066] It should be noted that the embodiment of the present invention provides a transmission line tower, comprising a tower body 6 and the above-mentioned micro-pile foundation with a seismic isolation effect of the transmission line tower, and is transported by the above-mentioned transportation equipment.

[0067] like Figure 1 As shown, the technical effect of the transmission line tower in this embodiment is the same as the technical effect of the micro pile foundation with seismic isolation effect of the above-mentioned transmission line tower, which will not be repeated here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A micro pile foundation with seismic isolation function for a transmission line tower, characterized in that: The invention comprises a precast pile basic body (1) and a seismic isolation support (2), wherein the precast pile basic body (1) is used to be fixed on a foundation; the seismic isolation support (2) comprises a first connecting plate (21), an energy absorbing structure (22) and a second connecting plate (23) which are connected in sequence, the first connecting plate (21) and the second connecting plate (23) are parallel to each other, the energy absorbing structure (22) is used to reciprocate along a first direction, the first connecting plate (21) is detachably mounted on the precast pile basic body (1), and the second connecting plate (23) is used to be fixedly connected to a tower body (6) of a transmission line tower; the first direction points from the foundation to the tower body (6).

2. The micro pile foundation with seismic isolation function for a transmission line tower as claimed in claim 1, characterized in that: The energy absorbing structure (22) comprises a first working piece (221), wherein the first working piece (221) comprises a lead core (2211), a rigid plate (2212) and an elastic pad (2213), wherein the rigid plate (2212) and the elastic pad (2213) are both provided in plurality and are alternately stacked along the first direction, and the lead core (2211) passes through the center of the rigid plate (2212) and the center of the elastic pad (2213) along the first direction.

3. The micro pile foundation with seismic isolation function for a transmission line tower as claimed in claim 2, characterized in that: The first working piece (221) further comprises a first sealing plate (2214), a second sealing plate (2215) and an elastic protective layer (2216); the elastic protective layer (2216) encloses a hollow structure with openings at both ends; the lead core (2211), the rigid plate (2212) and the elastic pad (2213) are all located in the hollow structure; the first sealing plate (2214) and the second sealing plate (2215) are respectively covered and installed at the two open ends of the hollow structure, and are respectively fixedly connected to the second connecting plate (23) and the first connecting plate (21).

4. The micro pile foundation with seismic isolation function for a transmission line tower as claimed in claim 3, characterized in that: The energy absorbing structure (22) further comprises a second working piece (222), the second working piece (222) comprising a plurality of the second working pieces (222) and being equally spaced around the central axis of the first working piece (221), the second working piece (222) comprising a first end (2221), an elastic portion (2222) and a second end (2223) arranged in sequence, the first end (2221) being mounted in a first connecting hole (212) of the first connecting plate (21), and the second end (2223) being mounted in a second connecting hole (232) of the second connecting plate (23).

5. The micro pile foundation with seismic isolation function for a transmission line tower as claimed in claim 1, characterized in that: The invention also comprises a connecting bolt (3), wherein the connecting bolt (3) comprises a second nut (31), a gasket (32), an anchor rod (33), an anchor plate (34) and a stiffening plate (35); one end of the anchor rod (33) is fixedly connected to the anchor plate (34); the anchor plate (34) abuts against the end surface of the second connecting plate (23) facing the energy absorbing structure (22); the other end of the anchor rod (33) is used to pass through the second threaded hole (231) on the second connecting plate (23) and penetrate into the tower body (6) so as to be detachably connected to the tower body (6) through the gasket (32) and the second nut (31); and the stiffening plate (35) is fixedly connected to the anchor plate (34) and the anchor rod (33) respectively.

6. The micro pile foundation with seismic isolation function for a transmission line tower as claimed in claim 1, characterized in that: The invention also comprises a stirrup sleeve (4), wherein the stirrup sleeve (4) comprises a screw (41), a sleeve (42), a connecting rod (43) and a first nut (44), one end of the screw (41) is fixedly connected to the first nut (44), the first nut (44) abuts against the end surface of the first connecting plate (21) facing the energy absorbing structure (22), the other end of the screw (41) is used to pass through the first threaded hole (211) on the first connecting plate (21), and is detachably connected to one end of the sleeve (42), one end of the connecting rod (43) is connected to the other end of the sleeve (42), the other end of the connecting rod (43) is placed in the prefabricated pile basic body (1) along the first direction, and is bent and extended along the second direction, and the first direction and the second direction are arranged crosswise.

7. A transport device, characterized in that: It comprises a transport vehicle and a limiting structure (5), the transport vehicle is used to carry the limiting structure (5), the tower body (6) of the transmission line pole tower and the prefabricated pile basic body (1) of the micro-pile foundation with seismic isolation function of the transmission line pole tower as described in any one of claims 1 to 6, and the limiting structure (5) is used to carry and fix the seismic isolation support (2) of the micro-pile foundation with seismic isolation function of the transmission line pole tower.

8. The transport device according to claim 7, characterized in that: The limiting structure (5) comprises a base (51) and a lifting lug (52), wherein the base (51) is provided with a limiting groove (511), wherein the limiting groove (511) has two limiting grooves (511), and the two limiting grooves (511) are arranged at intervals so that the first connecting plate (21) and the second connecting plate (23) of the seismic isolation support (2) are respectively at least partially correspondingly arranged in the two limiting grooves (511), and the lifting lug (52) is arranged on the base (51), and the lifting lug (52) is used to connect a fixing rope, and the fixing rope is used to bind the seismic isolation support (2) and / or connect a lifting device.

9. The transport device according to claim 8, characterized in that: The base (51) has two parts, and the two bases (51) are arranged at intervals so that the seismic isolation support (2) is placed between the two bases (51). A support platform (53) is provided on the end surface of any one of the bases (51) facing the other base (51), and the support platform (53) is provided with a support surface (531) matching the shape of the energy absorption structure (22) of the seismic isolation support (2). The support surfaces (531) of the two support platforms (53) cooperate to form a receiving cavity for receiving the energy absorption structure (22), and the fixing rope is also used to connect the lifting ears (52) of the two bases (51).

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