A multi-jack-up working condition counterforce lifting device system

Abstract

The utility model discloses a kind of multi-jack-up lifting working condition counterforce pull-up type device systems, belong to building repair engineering field.To solve the control technical difficulty big, construction efficiency low and economic benefit poor and other problems caused by too many jack-up devices in large building synchronous jack-up, the system includes: the jack-up supporting device on counterforce pile, the jack-up counterforce beam pull-up device connected with building foundation by pre-buried anchor rod, and the multi-jack-up hydraulic lifting device arranged between the two.Using, multi-jack-up hydraulic lifting device upwardly jack-up jack-up counterforce beam pull-up device, and then pull up building foundation to complete jack-up operation.The utility model provides single, double and triple etc.Various jack combination working conditions, optimize the total number of jack group under the condition of meeting total jacking force load, with the advantages of solid structure, combination flexible, economical and practical.

Description

Technical Field

[0001] This utility model relates to the field of building repair engineering technology, and in particular to a multi-unit jacking reaction force lifting device system. Background Technology

[0002] In large-scale building rectification and repair projects, the jacking reaction force system serves as both a platform for the hydraulic jack group to perform jacking operations and a crucial force transmission device for transferring the jacking force to the building's foundation structure. The total number of hydraulic jacks required for the project is actually determined by the number of reaction force devices. To achieve precise control over the jacking amount during the overall synchronous jacking process, a large number of hydraulic jack groups are typically needed, which means that a corresponding number of reaction force devices need to be deployed at each unit node.

[0003] However, an excessive number of reaction devices can lead to a series of problems, including increased investment in materials, equipment, manpower, and resources, prolonged jacking time, and consequently, increased difficulty in control technology, low construction efficiency, project delays, and reduced economic benefits. Therefore, how to control the number of hydraulic jacking devices within a reasonable range while meeting the design total jacking load requirements and ensuring construction quality is a pressing technical challenge in this field. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned deficiencies in the existing technology by providing a multi-unit jacking reaction force lifting device system. This system aims to solve the problems of high control technical difficulty, low construction efficiency, long construction period, and poor economic benefits caused by the large number of jacking devices required to ensure quality in the synchronous jacking correction and repair projects of large buildings.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a multi-unit jacking reaction force lifting device system, the multi-unit jacking reaction force lifting device system comprising:

[0006] Lifting support device;

[0007] A lifting reaction beam lifting device, wherein the lifting reaction beam lifting device is connected to the building foundation through pre-embedded anchor rods;

[0008] A multi-unit hydraulic jacking device is provided, which is located between the jacking support device and the jacking reaction beam lifting device to jack the jacking reaction beam lifting device upward; the jacking reaction beam lifting device lifts the building foundation connected to it through the pre-embedded anchor rod.

[0009] In one embodiment, the jacking support device is composed of a transition pile head, a jacking tray, and a support pier stacked from bottom to top, with the bottom of the transition pile head situated on top of the reaction pile.

[0010] In one embodiment, the transition pile head includes a transition pile head panel and a transition pile head stiffening plate; the lifting pallet includes a lifting pallet panel and a lifting pallet stiffening plate; and the replacement pier includes a replacement pier panel and a replacement pier stiffening plate.

[0011] In one embodiment, the lifting reaction beam lifting device comprises a reaction beam, at least one locking beam situated on the reaction beam, a lifting rod perpendicularly passing through the locking beam, a pre-embedded anchor rod connected to the lifting rod, and a rod lock nut and an anti-fall lock nut for fastening the lifting rod to the locking beam.

[0012] In one embodiment, the lifting rod is connected to the pre-embedded anchor rod via an anchor rod connector.

[0013] In one embodiment, the reaction beam includes a reaction beam stiffener, a reaction beam upper flange, and a reaction beam lower flange; the locking beam is located on the reaction beam upper flange.

[0014] In one embodiment, the multi-unit hydraulic lifting device is a multi-unit hydraulic jack, the bottom of which sits on top of the lifting support device, and the top of the cylinder of the multi-unit hydraulic jack abuts against the bottom of the lifting reaction beam lifting device.

[0015] In one embodiment, the combination of the multi-unit hydraulic jacks includes one or more combinations of single-unit hydraulic jacks, double-unit hydraulic jacks, and triple-unit hydraulic jacks.

[0016] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages:

[0017] The multi-unit jacking reaction force lifting device system provided in this embodiment allows for the arrangement of single, double, and triple jacks in three working modes. By arbitrarily combining or appropriately adding large-tonnage jacks, the total number of jacks can be effectively optimized and controlled while meeting the total jacking load, thus solving the construction problems caused by an excessive number of jacking devices.

[0018] Furthermore, this utility model is a steel structure with a sturdy frame, capable of effectively withstanding various levels of design lifting stress. The manufacturing materials are common steel profiles, reinforcing bars, and accessories frequently used in construction engineering, and are widely available.

[0019] Furthermore, the processing methods for the equipment are all conventional cutting and welding processes used in engineering, which makes it easy for construction units to quickly manufacture and process the equipment according to project requirements.

[0020] Finally, the system can support different numbers and various models and specifications of hydraulic jacks, and its combination and arrangement are flexible. It can meet diverse lifting load and accuracy requirements, and is suitable for complex construction conditions such as synchronous lifting and correction of large buildings. It is an economical and practical lifting reaction device system. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of the present invention under the working condition of a single-unit jack;

[0023] Figure 2 This is a front view of the present invention under the working condition of a double-jack;

[0024] Figure 3 This is a front view of the present invention under the working condition of a triple jack;

[0025] Figure 4 This is a side view of the present invention applicable to three different jack working conditions.

[0026] The labels for the various figures are as follows:

[0027] 1. Transition pile head; 1-1. Transition pile head panel; 1-2. Transition pile head stiffening plate; 2. Lifting tray; 2-1. Lifting tray panel; 2-2. Lifting tray stiffening plate; 3. Replacement pier; 3-1. Replacement pier panel; 3-2. Replacement pier stiffening plate; 4. Multi-unit hydraulic jack; 4-1. Single-unit hydraulic jack; 4-2. Double-unit hydraulic jack; 4-3. Triple-unit hydraulic jack; 5. Reaction beam; 5-1. Reaction beam stiffening plate; 5-2. Reaction beam upper flange; 5-3. Reaction beam lower flange; 6. Locking beam; 7. Lifting tie rod; 8. Pre-embedded anchor rod; 9. Anchor rod connector; 10. Tie rod lock nut; 11. Anti-fall lock nut; 12. Reaction pile; 13. Reinforced concrete raft foundation or strip foundation; 14. Foundation soil; 15. Jack travel lifting line; 16. Void grouting layer. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Please see Figures 1 to 4 This application provides a multi-stage jacking reaction lifting device system, which includes three main parts: a jacking support device, a jacking reaction beam lifting device, and a multi-stage hydraulic jacking device.

[0033] The jacking support device of this system consists of, from bottom to top, a transition pile head 1, a jacking tray 2, and a support pier 3 stacked together. The transition pile head 1 includes a transition pile head panel 1-1 and a transition pile head stiffening plate 1-2; the jacking tray 2 includes a jacking tray panel 2-1 and a jacking tray stiffening plate 2-2; and the support pier 3 includes a support pier panel 3-1 and a support pier stiffening plate 3-2. The entire jacking support device rests on the top of the pre-constructed reaction pile 12 via the bottom of the transition pile head 1.

[0034] The lifting reaction beam jacking device is the core of the entire system. It consists of a reaction beam 5, locking beams 6, lifting rods 7, pre-embedded anchor rods 8, anchor rod connectors 9, rod lock nuts 10, and anti-fall lock nuts 11. The reaction beam 5 includes a reaction beam stiffening plate 5-1, an upper flange 5-2, and a lower flange 5-3. As shown in the figure, two locking beams 6 are vertically positioned on the upper flange 5-2 of the reaction beam. Four lifting rods 7 pass vertically through the pre-drilled holes in the locking beams 6 and are securely connected to them via rod lock nuts 10 and anti-fall lock nuts 11. The four lifting rods 7 are connected to the four pre-embedded anchor rods 8 via the anchor rod connectors 9. The entire device is securely connected to the reinforced concrete raft foundation or strip foundation 13 of the building via the pre-embedded anchor rods 8.

[0035] The system's multi-unit hydraulic jacking device is a multi-unit hydraulic jack 4. Depending on construction requirements, its multi-unit configuration can be divided into a single-unit hydraulic jack 4-1 (e.g.,...). Figure 1 As shown), double hydraulic jack 4-2 (as shown) Figure 2 (as shown) and triple hydraulic jack 4-3 (as shown) Figure 3 There are three lifting modes (as shown). In all three modes, the bottom of the multi-unit hydraulic jack 4 rests on the support plate 3-1 of the lifting support device, and its cylinder presses against the bottom surface of the lower flange 5-3 of the reaction beam of the lifting reaction beam device.

[0036] Before implementing overall synchronous jacking and correction work in the repair project of a large building, several sets of the device system of this utility model are arranged at the jacking unit nodes of the building's foundation structure according to the designed total jacking load value. According to the designed total jacking load value and the corresponding construction design requirements, the multi-unit hydraulic jack 4 is arranged in a combination form from single-unit, double-unit, and triple-unit modes for jacking.

[0037] The multi-unit hydraulic jack 4 sits on the lifting support device and is transmitted sequentially through the supporting pier 3, lifting tray 2, and transition pile head 1 of the lifting support device. Finally, the pre-constructed reaction pile 12 serves as the bottom support. At this time, all the cylinders of the multi-unit hydraulic jack 4 retract to their initial state. The reaction beam 5 of the lifting reaction beam lifting device sits on the retraction cylinder of the multi-unit hydraulic jack 4 under free gravity. The pull rod lock nut 10 and the anti-fall lock nut 11 are loosened, allowing the locking beam 6 to sit vertically on the upper flange 5-2 of the reaction beam under free gravity. The pull rod lock nut 10 and the anti-fall lock nut 11 are then locked. At this time, the three main parts of the multi-unit lifting reaction lifting device system—the lifting support device, the lifting reaction beam lifting device, and the multi-unit hydraulic lifting device—are in a naturally tight connection state.

[0038] During synchronous jacking, the hydraulic pump station supplies oil to the multi-unit hydraulic jacking device. The cylinders of the multi-unit hydraulic jacks 4 vertically lift the lower flange 5-3 of the reaction beam along the jack stroke lifting line 15. The lifting force is transmitted through components such as the reaction beam 5, locking beam 6, lifting rod 7, anchor bolt connector 9, and pre-embedded anchor bolts 8, ultimately reaching the reinforced concrete raft slab or strip foundation 13 of the building, thereby lifting the building to be repaired. After completing one stroke, the jacks retract and the cylinders return to their original positions, completing one cycle of unit-stage jacking work.

[0039] Afterwards, the tie rod lock nut 10 and the anti-fall lock nut 11 are released, allowing the locking beam 6 and the reaction beam 5 to sit back on the retracted jack cylinder due to gravity. The lock nuts are then tightened again, restoring the three main parts to a tight connection, preparing for the next stage of jacking. This process is repeated until the entire building is lifted to the design elevation.

[0040] After the jacking is completed, the void between the building foundation 13 and the original foundation soil 14 needs to be compacted and grouted to form a stable void grouting layer 16, thus completing all the repair work.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-unit jacking reaction force lifting device system, characterized in that, The multi-unit jacking and reaction force lifting device system includes: Lifting support device; A lifting reaction beam lifting device, wherein the lifting reaction beam lifting device is connected to the building foundation through pre-embedded anchor rods; A multi-unit hydraulic jacking device is provided, which is located between the jacking support device and the jacking reaction beam lifting device to jack the jacking reaction beam lifting device upward; the jacking reaction beam lifting device lifts the building foundation connected to it through the pre-embedded anchor rod.

2. The multi-unit jacking reaction force lifting device system according to claim 1, characterized in that: The jacking support device consists of a transition pile head, a jacking tray, and a support pier stacked from bottom to top, with the bottom of the transition pile head resting on the top of the reaction pile.

3. The multi-unit jacking reaction force lifting device system according to claim 2, characterized in that: The transition pile head includes a transition pile head panel and a transition pile head stiffening plate; the lifting tray includes a lifting tray panel and a lifting tray stiffening plate; the replacement pier includes a replacement pier panel and a replacement pier stiffening plate.

4. The multi-unit jacking reaction force lifting device system according to claim 1, characterized in that: The lifting reaction beam lifting device consists of a reaction beam, at least one locking beam located on the reaction beam, a lifting rod that passes vertically through the locking beam, a pre-embedded anchor rod connected to the lifting rod, and a rod lock nut and a fall prevention lock nut for fastening the lifting rod to the locking beam.

5. A multi-unit jacking reaction force lifting device system according to claim 4, characterized in that: The lifting rod is connected to the pre-embedded anchor rod via an anchor rod connector.

6. A multi-unit jacking reaction force lifting device system according to claim 4, characterized in that: The reaction beam includes a reaction beam stiffener, a reaction beam upper flange, and a reaction beam lower flange; the locking beam is located on the reaction beam upper flange.

7. The multi-unit jacking reaction force lifting device system according to claim 1, characterized in that: The multi-unit hydraulic lifting device is a multi-unit hydraulic jack. The bottom of the multi-unit hydraulic jack is located on the top of the lifting support device, and the top of the cylinder of the multi-unit hydraulic jack abuts against the bottom of the lifting reaction beam lifting device.

8. A multi-unit jacking reaction force lifting device system according to claim 7, characterized in that: The combination of the multi-unit hydraulic jacks includes one or more combinations of single-unit hydraulic jacks, double-unit hydraulic jacks, and triple-unit hydraulic jacks.

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