A comprehensive jacking and deviation rectifying device for masonry tower body and a construction method thereof
The integrated jacking and correction device, consisting of the tower base cladding, tower body hoop plates, and cable system, solved the problems of inaccurate correction and secondary damage to brick and stone tower cultural relics, achieving precise correction and improved foundation stability.
Patent Information
- Application Number
- CN202410770618.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2044-06-14
AI Technical Summary
Existing correction devices suffer from secondary damage, inaccurate correction, large foundation deformation, and high risk of overturning during the correction process of brick and stone pagodas, making it difficult to meet the requirements of cultural relic protection.
The integrated jacking and correction device, which consists of tower base cladding, tower body hoop plates, and cable system, includes inclined cables, a lower support system, and jacking components. Through repeated adjustments using jacks and tension jacks, combined with the enclosure and support structures, it achieves precise correction and protection.
This achieved precise control and protection of the tower during the correction process, avoiding secondary damage, enhancing the stability of the foundation, reducing the risk of overturning, and conforming to the principles of cultural relic protection.
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Figure CN118532061B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of correction and protection of brick and stone pagoda cultural relics, specifically to a comprehensive lifting and correction device for brick and stone pagodas and its construction method. Background Technology
[0002] Brick and stone pagodas represent the pinnacle of ancient high-rise architecture and serve as a vital foundation for preserving traditional culture, possessing immense cultural relic value. However, due to their age, the bearing capacity of the foundations has weakened, leading to varying degrees of deformation and material damage in the bases and bodies. Furthermore, the impact of earthquakes and other factors has resulted in a widespread phenomenon of "nine out of ten pagodas leaning precariously." Therefore, developing effective corrective mechanisms for brick and stone pagodas is a crucial aspect of cultural relic preservation.
[0003] Common methods of tilt correction include forced descent and jacking correction. However, due to the tower's heavy weight, significant foundation deformation, and large height-to-width (height-to-diameter) ratio, forced descent correction easily widens the gaps between the tower foundation masonry, making construction quality difficult to control effectively and potentially accelerating foundation deformation or even causing collapse during construction. Traditional jacking correction requires separating the main structure from the foundation at specific locations, but towers are unreinforced masonry with low mechanical properties, making traditional jacking correction unsuitable. Since corrective measures for brick and stone towers are restricted by the principles of cultural relic protection, a comprehensive jacking correction device for brick and stone towers needs to be developed to address the difficulty in controlling tower tilt while ensuring structural safety and minimizing interference.
[0004] Existing methods for correcting tilting involve adding several concrete hoops to the inclined tower and then using steel cables to provide tension. However, this method lacks a proper protective system or lateral support for towers with large height-to-width (height-to-diameter) ratios, making them highly susceptible to unilateral collapse. Furthermore, relying solely on steel cables for tension makes precise control of the tilt, resulting in significant errors. Another method involves excavating a working pit along the settlement direction, using machinery to push a wedge-shaped structure into the bottom of the tower, and then grouting it. However, this approach also struggles to control the grout volume, and the lack of protective enclosures makes it difficult to effectively control the amount of tilt during the correction process. This can lead to sudden, unilateral instability and collapse due to the inability to control the tower's position.
[0005] The existing correction devices for the structure of pagodas still have the following shortcomings:
[0006] (1) The brick and stone tower body falls under the category of cultural relic building protection. Traditional reinforcement design methods mostly involve slotting / perforating the tower body, which does not follow the principle of minimum intervention in cultural relic building protection. The reinforcement device causes irreversible damage to the cultural relic body.
[0007] (2) The brick and stone tower body is an unreinforced masonry. The existing reinforcement device only installs the correction device on the upper structure and does not reinforce the tower body as a whole. This kind of method is very likely to increase the gap between the blocks of the tower base and reduce the bearing capacity of the foundation. In particular, the foundation may collapse due to accelerated deformation after the device is removed.
[0008] (3) As the tower is a special cultural relic building with a large height-to-width (height-to-diameter) ratio, the existing equipment did not take corresponding upper enclosure / support and other protective measures before (during) the correction process. It has poor resistance to overturning and is very easy to cause secondary tilting or even collapse during the correction process.
[0009] (4) When existing correction devices pull the tower body or lift the tower base, it is difficult to accurately control the building position when correcting the tower body on one side or continuously. In addition, due to the lack of corresponding protection measures, it is generally difficult to achieve all-round accurate correction control.
[0010] Therefore, there is an urgent need to develop a comprehensive lifting and correction device for brick and stone pagodas that conforms to the principles of pagoda protection. This device can effectively avoid secondary damage to the pagoda during the correction process, and achieve precise correction while protecting the architectural heritage. Summary of the Invention
[0011] In view of the above-mentioned shortcomings in the prior art, the present invention provides a comprehensive lifting and correction device and construction method for brick and stone tower bodies. In the process of correcting the deviation of cultural relic tower bodies, it can effectively avoid secondary damage to the tower body, protect the architectural cultural relics and achieve precise correction.
[0012] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows: a comprehensive lifting and correction device for a brick and stone tower body, comprising a tower base shroud, a tower body hoop plate, and a cable system connected in sequence;
[0013] The tower body hoop plate includes an upper hoop plate installed on the upper part of the tower body and a first-floor hoop plate installed on the first floor of the tower body;
[0014] The cable system includes stay cables and a lower support system connected to the upper hoop plate via the stay cables. The lower support system is located at the base of the tower body and includes protective components, support components, and lifting components located at the base of the tower body. The protective components and the upper hoop plate are connected via stay cables, and the support components and the tower base cladding are connected to the first-floor hoop plate.
[0015] Furthermore, in the aforementioned integrated jacking and correction device for the masonry tower body, the jacking component is located at the bottom of the tower base cladding and is connected to the support component via a jacking connecting plate. The jacking component includes a vertical jacking anchor rod and a jacking hopper mounted on the vertical jacking anchor rod. The jacking hopper is equipped with jacks for correction and adjustment, and a horizontal anchor hole is provided at the top of the jacking hopper, with a horizontal jacking anchor rod installed inside the horizontal anchor hole.
[0016] Furthermore, the comprehensive lifting and correction device for the aforementioned masonry tower body includes protective components such as enclosure panels surrounding the tower body, a limiting plate compartment on the inner side of the enclosure panels, an enclosure anchor rod at the bottom of the limiting plate compartment, a horizontal enclosure support arm, a first vertical enclosure support arm, and a second vertical enclosure support arm on the limiting plate compartment. The horizontal enclosure support arm and the first vertical enclosure support arm are connected to a support component, and the second vertical enclosure support arm is connected to a stay cable.
[0017] The support assembly includes an inclined support rod, a horizontal support rod, and an L-shaped vertical support rod installed on the limiting plate compartment. A horizontal extension arm is installed at the end of the horizontal support rod away from the limiting plate compartment.
[0018] Furthermore, the aforementioned integrated jacking and correction device for the brick and stone tower body includes at least two sequentially connected arc ring plates in the enclosure panel, with the enclosure panel no more than 5m away from the tower body;
[0019] The limiting plate compartment includes limiting steel plates installed on the upper, lower and inner sides of the enclosure plate, and the limiting steel plates and the enclosure plate are connected by a first fixing bolt.
[0020] Furthermore, in the aforementioned integrated jacking and correction device for the masonry tower body, the inclined support rod, horizontal support rod, and L-shaped vertical support rod are arranged in a triangular pattern. The inclined support rod is connected to the first vertical retaining arm by a second fixed bolt, the inclined support rod is connected to the inclined extension arm by a second movable bolt, the horizontal support rod is connected to the horizontal retaining arm by a first movable bolt, and the horizontal support rod, L-shaped vertical support rod, and horizontal extension arm are connected by a third fixed bolt.
[0021] Furthermore, in the aforementioned integrated jacking and correction device for the masonry tower body, a telescopic fastener is installed at the connection between the first movable bolt and the horizontal support rod, and a telescopic fastener is installed at the connection between the second movable bolt and the inclined support rod.
[0022] Furthermore, in the above-mentioned integrated lifting and correction device for the masonry tower body, the first layer hoop plate (32) and the upper hoop plate are arranged from the inside out with a layer of synthetic rubber material, a wooden pad and a hoop steel plate. The width of the wooden pad and the hoop steel plate is 1 / 3 of the tower body height, and the starting height of the arrangement of the wooden pad and the hoop steel plate is 1 / 2 of the tower body height.
[0023] The number of tower body sleeve plates is the same as the number of tower body surfaces. Adjacent tower body sleeve plates are connected by wedge-shaped pads, and support connecting plates are set on the sides of the wedge-shaped pads. An inclined extension arm is set on the outside of the support connecting plate, and the inclined extension arm is located above the L-shaped vertical support rod.
[0024] Furthermore, the aforementioned integrated jacking and correction device for the masonry tower body comprises a cable system divided into a tension side cable system and an inclined side cable system. Anchoring clamps are installed on the second vertical retaining arm of the tension side cable system. A tensioning jack is installed in the middle of the anchoring clamp, a fixed anchor is installed at the bottom of the tensioning jack, and a movable anchor is installed above the tensioning jack. An anchoring clamp and a sleeve extension arm are installed on the movable anchor. The second vertical retaining arm and the fixed anchor are connected by a fourth fixing bolt; the sleeve extension arm and the fixed anchor are connected by a fifth fixing bolt. A tension release jack is installed on the limiting plate of the inclined side cable system.
[0025] The fixed anchor includes an anchor sleeve, on which anti-slip inserts and locking pressure rings are provided, and a movable collar is provided in the middle of the anchor sleeve.
[0026] Furthermore, in the aforementioned integrated jacking and correction device for the brick and stone tower body, the number of tower base cladding plates is the same as the number of faces of the tower body, adjacent tower base cladding plates are connected by steel buckles and bolts, and a rectangular pad is set on each tower base cladding plate.
[0027] Furthermore, the construction method of the aforementioned integrated jacking and correction device for the masonry tower body includes the following steps:
[0028] S1: Install protective components, compact the soil around the tower, excavate a foundation pit no more than 5m from the edge of the tower, and install protective panels.
[0029] S2: Set up support components, set up limiting plate compartments on the enclosure plate, set up horizontal enclosure support arms, first vertical enclosure support arms and second vertical enclosure support arms on the limiting plate compartments, set up anchor holes at the bottom of the limiting plate compartments, and drive the enclosure anchor rods into the bearing layer along the anchor holes.
[0030] S3: Install a first-layer hoop plate, install a wooden pad with a width of 1 / 3 of the first-layer height of the tower body along the first layer of the tower body, install a layer of synthetic rubber material between the wooden pad and the tower body, and install a hoop steel plate on the outside of the wooden pad.
[0031] S4: Install the tower base enclosure, excavate downwards along the tower base to the bottom of the tower base, clean the area around the tower base, perform pressure grouting at the cracks, install the tower base enclosure on the outside of the tower base, and install a rectangular pad and a horizontal outrigger on the outside of the tower base enclosure.
[0032] S5: Install the remaining support components. Excavate a pit along the bottom of the tower base to the protective components for installing the support components, and install the support components.
[0033] S6: Set up the lifting component and connect the lifting component to the support component;
[0034] S7: Install the upper hoop plate, stay cables, tension jacks, and release jacks;
[0035] S8: Use the jacks, tension jacks and release jacks in the jacking assembly to perform cyclical jacking and correction adjustment;
[0036] S9: After the jacking and correction adjustment, when the tower body is stable, remove the jacks, lay steel bars on the jacking silo, pour concrete to expand the tower body and tower base, and after the concrete hardens, retain the horizontal support rods connected to the protection components, remove the rest of the structure, and then fill and compact the soil.
[0037] The beneficial effects of the present invention are as follows: (1) The present invention provides a comprehensive lifting and correction device for a brick and stone tower and its construction method, which follows the basic principles of cultural relic building protection, proposes that the external sleeve plate of the cultural relic body can reduce human damage, and protect the cultural relic value of the tower to the greatest extent while meeting the lifting and correction requirements. It has the characteristics of safety, efficiency and precise control.
[0038] (2) This invention proposes to strengthen the tower base with a reasonable overall enclosure before correction, taking into account the construction characteristics of unreinforced brick and stone tower buildings. This can prevent the tower base from expanding gaps and collapsing again during the correction process.
[0039] (3) The integrated lifting and correction device for the brick and stone tower body proposed in this invention, which integrates the lower support system and the cable system, can provide auxiliary support, anchor support and cable support for the tower body itself before (during) the correction work, so as to prevent the tower body from overturning seriously.
[0040] (4) The jacks in the lower lifting assembly and the tensioning jacks in the cable system provided by the present invention work together to achieve precise correction control through repeated cycles, ensuring that the tower body is restored to the baseline.
[0041] (5) The designed fixed anchors can anchor the stay cables to prevent them from overturning, while the movable anchors can replace the fixed anchors to tighten them after a single tensioning, achieving cyclic and precise lifting and correction; the designed telescopic buckles can provide protective support in case the jacks fail; the support structure components and enclosure structure components can provide horizontal and circumferential support after correction is completed, making it easy to remove the jacks and forming a full-process support and protection for the tower's cultural relics building. Attached Figure Description
[0042] Figure 1 This is a schematic diagram of the structure of the correction device;
[0043] Figure 2 This is a schematic diagram of the lower support system;
[0044] Figure 3 This is a schematic diagram of the cable system.
[0045] Figure 4This is a schematic diagram of the planar structure of the tower body's hoop plate;
[0046] Figure 5 A structural diagram of the protective components;
[0047] Figure 6 A schematic diagram of the supporting components;
[0048] Figure 7 This is a schematic diagram of the lifting assembly.
[0049] Figure 8 This is a schematic diagram of a partial structure on the tension side of the cable system;
[0050] Figure 9 This is a schematic diagram of a partial structure on the inclined side of the cable system;
[0051] Figure 10 This is a schematic diagram of the structure of the movable anchor.
[0052] The components include: 1. Tower body; 2. Tower base; 3. Tower body retaining plate; 31. Upper retaining plate; 32. First-floor retaining plate; 301. Wedge-shaped pad; 302. Support connecting plate; 303. Retaining steel plate; 4. Tower base surrounding plate; 401. Rectangular pad; 5. Protection components; 501. Limiting plate compartment; 502. Enclosure plate; 503. Enclosure anchor bolt; 504. First fixing bolt; 505. First vertical enclosure support arm; 506. Horizontal enclosure support arm; 507. Second vertical enclosure support arm; 6. Support components; 601. Diagonal support rod; 602. L-shaped vertical support rod; 603. Horizontal support rod; 6031. Telescopic buckle; 604. Diagonal extension arm; 605. Horizontal extension arm; 606. Second fixing bolt; 607, Third fixing bolt; 608, First movable bolt; 609, Second movable bolt; 7, Lifting assembly; 701, Lifting silo; 702, Horizontal lifting anchor; 703, Jack; 704, Vertical lifting anchor; 705, Lifting connecting plate; 8, Cable system; 801, Cable tie; 802, Tensioning jack; 803, Tensioning jack; 804, Fixed anchor; 805, Movable anchor; 8051, Anchor sleeve; 8052, Anti-slip insert; 8053, Locking pressure ring; 8054, Movable collar; 806, Hoop extension arm; 807, Anchor clamp; 808, Fourth fixing bolt; 809, Fifth fixing bolt; 9, Steel buckle plate. Detailed Implementation
[0053] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.
[0054] like Figures 1-10 As shown, this embodiment provides a comprehensive lifting and correction device for a masonry tower, including a tower base shroud 4, a tower body hoop 3, and a cable system 8 connected in sequence; the tower body hoop 3 includes an upper hoop 31 set on the upper part of the tower body 1 and a first-layer hoop 32 set on the first floor of the tower body 1; the cable system 8 includes a stay cable 801 and a lower support system connected to the upper hoop 31 through the stay cable 801. The lower support system is set on the base layer of the tower body 1, and includes a protective component 5, a support component 6, and a lifting component 7 set on the base layer of the tower body 1. The protective component 5 and the upper hoop 31 are connected by the stay cable 801, and the support component 6 and the tower base shroud 4 are connected to the first-layer hoop 32; the number of tower base shrouds 4 is the same as the number of faces of the tower body 1, and adjacent tower base shrouds 4 are connected by steel buckles 9 and bolts, and a rectangular pad 401 is set on each tower base shroud 4.
[0055] like Figure 2 As shown, the protection component 5 includes a protective plate 502 arranged around the tower body. A limiting plate compartment 501 is arranged inside the protective plate 502. A protective anchor rod 503 is arranged at the bottom of the limiting plate compartment 501. A horizontal protective support arm 506, a first vertical protective support arm 505, and a second vertical protective support arm 507 are arranged on the limiting plate compartment 501. The horizontal protective support arm 506 and the first vertical protective support arm 505 are connected to the support component 6, and the second vertical protective support arm 507 is connected to the stay cable 801. The protective plate 502 includes at least two arc ring plates connected in sequence. The protective plate 502 is no more than 5m away from the tower body 1. The limiting plate compartment 501 includes limiting steel plates arranged on the upper, lower, and inner sides of the protective plate 502. The limiting steel plates and the protective plate 502 are connected by a first fixing bolt 504.
[0056] The support assembly 6 includes an inclined support rod 601, a horizontal support rod 603, and an L-shaped vertical support rod 602 mounted on the limiting plate compartment 501. A horizontal extension arm 605 is mounted on the end of the horizontal support rod 603 away from the limiting plate compartment 501. The inclined support rod 601, the horizontal support rod 603, and the L-shaped vertical support rod 602 are arranged in a triangular pattern. The inclined support rod 601 is connected to the first vertical enclosure support arm 505 by a second fixing bolt 606. The inclined support rod 601 is connected to the inclined extension arm 604 by a second movable bolt 609. The horizontal support rod 603 is connected to the horizontal enclosure support arm 506 by a first movable bolt 608. The horizontal support rod 603, the L-shaped vertical support rod 602, and the horizontal extension arm 605 are connected by a third fixing bolt 607.
[0057] The lifting assembly 7 is located at the bottom of the tower base shroud 4, and is connected to the support assembly 6 via a lifting connecting plate 705. The lifting assembly 7 is located at the bottom of the tower base 2, and includes a vertical lifting anchor rod 704 and a lifting hopper 701 mounted on the vertical lifting anchor rod 704. The lifting hopper 701 contains jacks 703 for correction and adjustment, and a horizontal anchor hole is located at the top of the lifting hopper 701, within which a horizontal lifting anchor rod 702 is installed.
[0058] like Figure 4 As shown, the first-layer hoop plate 32 and the upper hoop plate 31 are arranged from the inside out with a layer of synthetic rubber material, a wooden pad, and a hoop steel plate 303. The width of the wooden pad and the hoop steel plate 303 is 1 / 3 of the height of the first layer of the tower, and the starting height of the arrangement of the wooden pad and the hoop steel plate 303 is 1 / 2 of the height of the first layer of the tower.
[0059] At least three tower body sleeve plates 3 are provided. Two adjacent tower body sleeve plates 3 are connected by wedge-shaped pads 301. A support connecting plate 302 is provided on the side of the wedge-shaped pads 301. An inclined extension arm 604 is provided on the outside of the support connecting plate 302. The inclined extension arm 604 is located above the L-shaped vertical support rod 602.
[0060] To prevent the jack 703 from losing its lifting efficiency in case of power failure or pressure loss during the lifting process, a telescopic fastener 6031 is installed at the connection between the first movable bolt 608 and the horizontal support rod 603, and at the connection between the second movable bolt 609 and the diagonal support rod 601. The telescopic fastener 6031 can expand and contract locally in the forward direction according to the correction position of the tower body 1, and the expansion and contraction of the telescopic fastener 6031 is irreversible, that is, the telescopic fastener 6031 cannot expand and contract in the reverse direction. The fastener can provide support force for the support structure and the entire tower body.
[0061] The cable system 8 is divided into a tension-side cable system and an inclined-side cable system. An anchoring clamp 807 is installed on the second vertical retaining arm 507 of the tension-side cable system. A tensioning jack 802 is installed in the middle of the anchoring clamp 807. A fixed anchor 804 is installed at the bottom of the tensioning jack 802, and a movable anchor 805 is installed above the tensioning jack 802. An anchoring clamp 807 and a sleeve extension arm 806 are installed on the anchoring assembly. The second vertical retaining arm 507 and the fixed anchor 804 are connected by a fourth fixing bolt 808; the sleeve extension arm 806 and the fixed anchor 804 are connected by a fifth fixing bolt 809. A tension release jack 803 is installed on the limiting plate 501 of the inclined-side cable system 8.
[0062] The fixed anchor 804 includes an anchor sleeve 8051, on which an anti-slip insert 8052 and a locking pressure ring 8053 are provided. A movable collar 8054 is provided in the middle of the anchor sleeve 8051. The fixed anchor 804 is used to connect the stay cable 801 and to effectively tension it through tensioning jacks 802 and releasing jacks 803. After one cycle of tensioning and lifting to correct the deviation, tensioning jacks 802 and releasing jacks 803 are locked and fixed by the movable anchor 805 and the movable collar 8054. Then, tensioning jacks 802 and releasing jacks 803 can be safely released for reset and re-tensioning. In the process of repeated tensioning and correction, the tilted ancient tower can achieve safe, efficient and precise correction.
[0063] A specific construction method for a comprehensive lifting and correction device for an ancient brick and stone pagoda includes the following steps:
[0064] S1: Set up protective component 5 to perform the first compaction treatment on the soil around tower body 1, which improves the bearing capacity of the soil around tower body 1 to a certain extent. Excavate the foundation pit at a distance of no more than 5m from the tower body 1 and lay out the retaining plate 502, which is composed of several semi-ring plates in sequence. Each semi-ring plate is connected by at least 2 first fixing bolts 504. The retaining plate 502 restricts the tower body 1 and soil layer inside the ring plate from further tilting and provides resistance.
[0065] S2: Set up support components 6. Determine the position and number of limiting plate pods 501 installed on the retaining plate 502 according to the tilt state of the tower body 1. Connect them using the first fixing bolt 504. Weld the inner and upper limiting steel plates in the limiting plate pods 501 to the horizontal retaining arm 506, the first vertical retaining arm 505, and the second vertical retaining arm 507 for connecting the support components 6 and the cable system 8, respectively. The lower limiting steel plate in the limiting plate pods 501 has reserved anchor holes. Use machinery to drive the retaining anchor rods 503 into the bearing layer along the anchor holes, so that the retaining anchor rods 503 and the retaining plate 502 form an external support structure system in the process of correcting the ancient pagoda's tilt, providing vertical support for the retaining plate 502 and the inner tower body 1, and ensuring that the ancient pagoda does not tilt further.
[0066] S3: A first-layer hoop plate 32 is installed. A wooden pad with a width of about 1 / 3 of the first-layer tower height is laid along the first layer of the tower body 1. The wooden pad is bonded to the tower body 1 with synthetic rubber material to prevent the tower body 1 from being damaged by human. The outer side of the wooden pad is tightly attached to the hoop steel plate 303 to form the tower body hoop plate 3. The tower body hoop plates 3 are connected by wedge-shaped pads 301 and bolts to make the tower body hoop plates 3 and the tower body 1 have strong integrity. The tower body hoop plates 3 form an effective and reversible clamping reinforcement measure for the tower body according to the shape of the tower body 1, which is used to protect the tower body 1 from secondary damage and provide external reinforcement system support. The wedge-shaped pad 301 is tightly connected to the support connecting plate 302 used to connect the support assembly 6 by welding. At the other end of the support connecting plate 302, the inclined extension arm 604 and the L-shaped vertical support rod 602 are also welded. The inclined extension arm 604 is connected to the first vertical enclosure support arm 505 in the protection assembly 5 by the inclined support rod 601, which can provide safe and stable support for subsequent jacking and correction measures.
[0067] S4: Install the base cladding 4. Since the ancient pagoda is an unreinforced masonry structure, the cracks between the blocks of the base 2 widen when it is tilted, resulting in extremely poor stability of the base 2. Overall correction measures are required. Excavate downwards along the base 2 to the bottom of the base 2, clean the area around the base 2, and apply pressure grouting to the cracks to improve the adhesion between the blocks of the base 2. Adhere the base cladding 4, which has the same length and width as the base 2, and use steel clamps 9 and bolts to tighten the connection. The base cladding 4 is used to tightly enclose the entire base 2 with steel clamps 9, making the entire base a whole and preventing further widening of the gaps between the foundation blocks during the correction and jacking process. The base cladding 4 has the ability to offset the local uneven compressive stress of the tilted base 2, improving the overall integrity of the base 2. Rectangular pads 401 and horizontal extension arms 605 are welded sequentially to the outside of the base cladding 4 along the support direction.
[0068] S5: Install the remaining support components 6. According to the layout of the jacking and correction device, excavate several foundation pits from the bottom of the tower base 2 to the protection component 5 for installing the remaining support components 6. Connect the horizontal support rod 603 to the horizontal retaining arm 506 and the horizontal extension arm 605 respectively through the first movable bolt 608 and the third movable bolt. Connect the L-shaped vertical support rod 602 to the horizontal extension arm 605 through the third movable bolt. The inclined support rod 601, the horizontal support rod 603 and the L-shaped vertical support rod 602 are connected to each other to form a triangular support structure. This structure has strong support stability. This support structure can reduce the compressive stress of the foundation under the tower base 2 and transfer the compressive stress to the retaining structure components.
[0069] S6: Set up the lifting assembly 7, drive vertical lifting anchor rods 704 down to the bearing layer at the corresponding positions around the bottom of the tower base 2, and put the anchor rods into the lifting hopper 701 with the reserved anchor holes and weld the ends. Correspondingly, the upper part of the lifting hopper 701 also has reserved horizontal anchor holes in the steel plate. Use machinery to drive the horizontal lifting anchor rods 702 a certain distance along the bottom of the tower base 2 so as to provide horizontal support force. Multiple jacks 703 are arranged inside the lifting hopper 701. The lifting assembly 705 is welded to the upper end of the lifting assembly 7 and connected to the support assembly 6.
[0070] S7: Install the upper hoop plate 31, and lay out the same wooden pads, hoop steel plates 303, wedge-shaped pads 301 and support connecting plates 302 along the upper tower layer with a width of about 1 / 3 of the first tower height as in step three. Weld the hoop extension arm 806 to the outside of the support connecting plate 302. The second vertical retaining support arm 507 and the hoop extension arm 806 are connected to the upper and lower anchoring clamps 807 by the fourth fixing bolt 808 and the fifth fixing bolt 809 respectively. The anchoring clamps 807 are used to connect the stay cable 801, tensioning jack 802, fixed anchor 804 and movable anchor 805. The movable anchor 805 is arranged on the upper part of the anchoring clamp 807. The tensioning jack 802 and the release jack 803 are respectively connected to the fixed anchor 804 to firmly pull the stay cable 801 at an angle.
[0071] S8: Cyclic lifting and correction adjustment is performed using jacks 703 in the lifting assembly 7 and tension jacks 802 and release jacks 803 in the upper inclined cable system. First, jacks 703 in the lifting assembly 7 and release jacks 803 on the inclined side in the cable system 8 lift upwards to correct the tilt of the tower body 1. Simultaneously, tension jacks 802 on the opposite side in the cable system 8 tension downwards, providing anti-overturning inclined cable tension to ensure that the tower body 1 does not collapse during the lifting process. After a single lifting and correction is completed, the movable collar 8054 in the movable anchor 805 is used for locking and fixing. At the same time, the telescopic buckles 6031 at the first movable bolt 608 and the second movable bolt 609 of the inclined support rod 601 and the horizontal support rod 603 retract forward, and then the movable bolts pop out again into an irreversible state. The telescopic buckles 6031 provide reverse support force. Subsequently, release tension jack 802 and release jack 803 and restore the initial state. After re-fixing tension jack 802, release jack 803 and fix anchor 804, loosen the movable collar 8054 in movable anchor 805. Repeat the correction control cycle until tower body 1 returns to the calibrated position.
[0072] S9: After the jacking and correction reaches the control position, the telescopic buckle 6031 of the support component 6 provides reverse support force and circumferential support force of the enclosure structure component. The upper cable system 8 provides the upper circumferential anti-overturning force. After ensuring the stability of the tower body 1, several jacks 703 are removed, and then steel bars are laid on the jacking silo 701. Concrete is poured to expand the ancient tower base 2. After the concrete hardens, the tower body hoop plate 3 and the inclined support rod 601 component and cable system 8 in the support component 6 are removed. The horizontal support rod 603 connected to the protection component 5 is retained. Finally, the backfilling and compaction are completed.
Claims
1. A comprehensive jacking and correction device for a brick and stone tower body, characterized in that, It includes the tower base cladding (4), the tower body hoop plate (3), and the cable system (8) connected in sequence. The tower body hoop plate (3) includes an upper hoop plate (31) set on the upper part of the tower body (1) and a first-layer hoop plate (32) set on the first floor of the tower body (1). The cable system (8) includes a stay cable (801) and a lower support system connected to the upper hoop plate (31) via the stay cable (801). The lower support system is set at the base of the tower body (1) and includes a protective component (5), a support component (6) and a lifting component (7) set at the base of the tower body (1). The protective component (5) and the upper hoop plate (31) are connected via the stay cable (801). The support component (6) and the tower base cladding (4) are connected to the first-floor hoop plate (32). The lifting assembly (7) is located at the bottom of the tower base (2) and is connected to the support assembly (6) through the lifting connecting plate (705); The lifting assembly (7) includes a vertical lifting anchor rod (704) and a lifting hopper (701) set on the vertical lifting anchor rod (704). The lifting hopper (701) is equipped with a jack (703) for correction and adjustment. The upper part of the lifting hopper (701) is provided with a horizontal anchor hole, and a horizontal lifting anchor rod (702) is set in the horizontal anchor hole. The protective component (5) includes a protective plate (502) arranged around the tower body. A limiting plate compartment (501) is arranged inside the protective plate (502). A protective anchor rod (503) is arranged at the bottom of the limiting plate compartment (501). A horizontal protective arm (506), a first vertical protective arm (505), and a second vertical protective arm (507) are arranged on the limiting plate compartment (501). The horizontal protective arm (506) and the first vertical protective arm (505) are connected to a support component (6). The second vertical protective arm (507) is connected to a stay cable (801). The support assembly (6) includes an inclined support rod (601), a horizontal support rod (603) and an L-shaped vertical support rod (602) disposed on the limiting plate compartment (501). A horizontal extension arm (605) is provided at the end of the horizontal support rod (603) away from the limiting plate compartment (501). The inclined support rod (601), horizontal support rod (603), and L-shaped vertical support rod (602) are arranged in a triangular pattern. The inclined support rod (601) is connected to the first vertical enclosure arm (505) by a second fixing bolt (606). The inclined support rod (601) is connected to the inclined extension arm (604) by a second movable bolt (609). The horizontal support rod (603) is connected to the horizontal enclosure arm (506) by a first movable bolt (608). The horizontal support rod (603), L-shaped vertical support rod (602), and horizontal extension arm (605) are connected by a third fixing bolt (607). A telescopic buckle (6031) is provided at the connection between the first movable bolt (608) and the horizontal support rod (603), and a telescopic buckle (6031) is provided at the connection between the second movable bolt (609) and the diagonal support rod (601).
2. The integrated jacking and correction device for a brick and stone tower body according to claim 1, characterized in that, The enclosure plate (502) includes at least two arc ring plates connected in sequence, and the enclosure plate (502) is no more than 5m away from the tower body (1); The limiting plate compartment (501) includes limiting steel plates disposed on the upper, lower and inner sides of the enclosure plate (502), and the limiting steel plates and the enclosure plate (502) are connected by a first fixing bolt (504).
3. The integrated jacking and correction device for brick and stone tower bodies according to claim 1, characterized in that, The first-layer hoop plate (32) and the upper hoop plate (31) are provided with a layer of synthetic rubber material, a wood pad and a hoop steel plate (303) from the inside out. The width of the wood pad and the hoop steel plate (303) is 1 / 3 of the height of the tower body (1), and the starting height of the arrangement of the wood pad and the hoop steel plate (303) is 1 / 2 of the height of the tower body (1). The number of tower body sleeve plates (3) is the same as the number of faces of the tower body (1). Two adjacent tower body sleeve plates (3) are connected by wedge-shaped pads (301). A support connecting plate (302) is provided on the side of the wedge-shaped pad (301). An inclined extension arm (604) is provided on the outside of the support connecting plate (302). The inclined extension arm (604) is located above the L-shaped vertical support rod (602).
4. The integrated jacking and correction device for a brick and stone tower body according to claim 1, characterized in that, The cable system (8) is divided into a tension side cable system and an inclined side cable system. An anchoring clamp (807) is provided on the second vertical retaining arm (507) of the tension side cable system. A tensioning jack (802) is provided in the middle of the anchoring clamp (807). A fixed anchor (804) is provided at the bottom of the tensioning jack (802). A movable anchor (805) is provided above the tensioning jack (802). An anchoring clamp (807) and a sleeve extension arm (806) are provided on the movable anchor (805). The second vertical retaining arm (507) and the fixed anchor (804) are connected by a fourth fixing bolt (808). The sleeve extension arm (806) and the fixed anchor (804) are connected by a fifth fixing bolt (809). A tension release jack (803) is provided on the limiting plate hopper (501) of the inclined side cable system. The fixed anchor (804) includes an anchor sleeve (8051), on which an anti-slip insert (8052) and a locking pressure ring (8053) are provided, and a movable collar (8054) is provided in the middle of the anchor sleeve (8051).
5. The integrated jacking and correction device for a brick and stone tower body according to claim 1, characterized in that, The number of tower base cladding plates (4) is the same as the number of faces of the tower body (1). Two adjacent tower base cladding plates (4) are connected by steel buckle plates (9) and bolts. A rectangular pad (401) is provided on each tower base cladding plate (4).
6. A construction method for a comprehensive jacking and correction device for a masonry tower body as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: Set up protective components (5), compact the soil around the tower, excavate a foundation pit no more than 5m from the edge of the tower, and install a retaining plate (502). S2: Set up a support assembly (6), set up a limiting plate hopper (501) on the enclosure plate (502), set up a horizontal enclosure support arm (506), a first vertical enclosure support arm (505) and a second vertical enclosure support arm (507) on the limiting plate hopper (501), set up an anchor hole at the bottom of the limiting plate hopper (501), and drive the enclosure anchor rod (503) into the bearing layer along the anchor hole; S3: Set the first layer hoop plate (32), set a wooden pad with a width of 1 / 3 of the first layer height of the tower body along the first layer of the tower body, set a synthetic rubber material layer between the wooden pad and the tower body, and set a hoop steel plate (303) on the outside of the wooden pad. S4: Set up the tower base enclosure (4), excavate downward along the tower base (2) to the bottom of the tower base (2), clean the area around the tower base (2), perform pressure grouting at the cracks, set up the tower base enclosure (4) on the outside of the tower base (2), and set up a rectangular pad (401) and a horizontal outrigger (605) on the outside of the tower base enclosure (4). S5: Install the remaining support components (6), excavate a foundation pit along the bottom of the tower base (2) to the protective component (5) for installing the support components (6), and install the support components (6). S6: Set up the lifting component (7) and connect the lifting component (7) to the support component (6); S7: Set the upper hoop plate (31), stay cable (801), tension jack (802) and release jack (803); S8: Use the jacks (703), tensioning jacks (802) and releasing jacks (803) in the lifting assembly (7) to perform cyclic lifting and correction adjustment; S9: After the lifting and correction adjustment, when the tower body (1) is stable, remove the jack (703), lay steel bars on the lifting silo (701), pour concrete to expand the tower body (1) and tower base (2), and after the concrete hardens, retain the horizontal support rod (603) connected to the protection component (5), remove the rest of the structure, and then fill and compact the soil.
Citation Information
Patent Citations
Opposite-pulling type anchor cable sheet-pile wall combined structure and jacking deviation rectifying device
CN115977179A
Foundation jacking deviation rectifying device for inclination of communication tower
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