Quick anchor rod static pressure pile pressing device

Abstract

The utility model relates to the technical field of geotechnical engineering, in particular to a rapid anchor rod static pressure pile pressing device which comprises a pile pressing frame and a dowel bar, the pile pressing frame comprises a pile pressing frame top plate and pile pressing frame stand columns, the pile pressing frame top plate is fixed between the pile pressing frame stand columns on the two sides in a limited mode through pile pressing frame pins, and the dowel bar is fixed to the pile pressing frame top plate. A jack is arranged at the bottom of the pile pressing frame top plate, the dowel bar is arranged below the jack, and the force application pushing face of the jack faces the dowel bar. The pile pressing device has the advantages of being capable of improving rapidness of pile pressing operation and simplifying construction steps, capable of conveniently and rapidly achieving large-displacement jacking under the condition that space is limited, high in pile pressing efficiency, simple in process and good in effect.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering, in particular to a quick anchor static pressure pile device. Background Art

[0002] Currently, anchor static piles are gradually being used in various projects, especially for building foundation reinforcement, settlement control, and deviation correction. During construction, anchor static piles are constructed by burying anchor rods in the infrastructure to fix the pile pressure reaction frame. The deadweight load of the building is used as the pile pressure reaction force. The pile section is pressed into the soil through a pile hole reserved or excavated in the foundation using a jack. The pile is then connected to the foundation, thereby achieving the purpose of improving the foundation's bearing capacity and controlling settlement.

[0003] When traditional anchor static pressure piles are used in reinforcement and correction construction, their disadvantages are:

[0004] 1) The pile driving operation is relatively complicated, and the jack and force transmission beam need to be constantly adjusted during the pile driving process;

[0005] 2) The jacking displacement is limited by the spatial environment. For example, when performing pile driving operations in spaces such as the basement of an existing building, the construction is often restricted by the narrow space. Summary of the Invention

[0006] The purpose of the utility model is to provide a quick anchor static pile driving device based on the above-mentioned deficiencies in the prior art, which improves the quickness and efficiency of the pile driving operation by structurally designing the pile driving frame and the force transmission rod, and at the same time achieves a large displacement jacking in a small space.

[0007] The purpose of this utility model is achieved by the following technical solutions:

[0008] A quick anchor static pressure pile device is characterized in that it includes a pile pressure frame and a force transmission rod, wherein the pile pressure frame includes a pile pressure frame top plate and pile pressure frame columns, the pile pressure frame top plate is fixed between the pile pressure frame columns on both sides by pile pressure frame pins, a jack is provided at the bottom of the pile pressure frame top plate, the force transmission rod is provided below the jack, and the force pushing surface of the jack faces the force transmission rod.

[0009] At least one jack hoop is sleeved on the jack, and the jack hoop is connected to the top plate of the pile driving frame and / or the column of the pile driving frame through a jack zipper.

[0010] The pile driving frame column is provided with a plurality of pin holes evenly spaced along the height direction, and the pin holes are matched with the pins of the pile driving frame.

[0011] A casing is provided between the pile driving frame columns on both sides, and the casing is arranged around the periphery of the force transmission rod.

[0012] A pile pressing frame bottom plate is provided at the bottom of the pile pressing frame column, and the pile pressing frame bottom plate is fixed to the structural raft plate through anchor rods.

[0013] The beam ends of the force transmission rods are respectively provided with pads.

[0014] The dowel rods have different length specifications.

[0015] The top plate of the pile pressing frame is connected to the upright columns of the pile pressing frame via a zipper.

[0016] The advantages of the utility model are:

[0017] 1) This device can improve the speed of pile driving operation and simplify the construction steps;

[0018] 2) In the case of limited space, large displacement lifting can be achieved quickly and easily;

[0019] 3) The pile driving efficiency is high, the process is simple and the effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 for Figure 1 aa section diagram in;

[0022] Figure 3 for Figure 1 bb cross-section diagram in. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0024] like Figure 1-3 As shown in the figure, the various marks respectively represent: pile frame top plate 11, pile frame pin 12, pile frame column 13, pile frame bottom plate 14, jack 21, jack zipper 22, jack hoop 23, force transfer rod pad 31, steel pipe pile pad 32, casing 4, force transfer rod 5, anchor nut 61, anchor rod 62, structural column 71, structural raft 72, steel pipe pile 8.

[0025] Example: Figures 1 to 3 As shown, the quick anchor static pressure pile driving device in this embodiment is used to perform a pile driving operation on a steel pipe pile 8 serving as an anchor static pressure pile.

[0026] The quick anchor static pile driving device in this embodiment mainly includes two parts: a pile driving frame and a force transmission rod. The pile driving frame serves as a reaction frame and is fixed to the structural raft 72 to provide a reaction force for the downward pressure of the steel pipe pile 8, while the force transmission rod is used to transmit the downward force of the jack 21 to the steel pipe pile 8.

[0027] Specifically, in this embodiment, the support portion of the pile frame includes a pile frame top plate 11, pile frame columns 13, and a pile frame bottom plate 14. The pile frame bottom plate 14 is positioned at the bottom of the pile frame columns 13 and is anchored to the building's structural raft 72 via anchor rods 62, which are locked by anchor rod caps 61. The pile frame columns 13 on either side are spaced apart at a predetermined distance, and the pile frame top plate 11 is mounted between the two columns 13. Several pin holes are uniformly arranged along the height of the pile frame columns 13, which align with the pile frame pins 12. The ends of the pile frame top plate 11 are fixed to the two columns 13 on either side via the pile frame pins 12. During use, the height of the pile frame top plate 11 can be quickly and conveniently adjusted visually by adjusting the position of the pile frame pins 12.

[0028] A jack 21 is provided below the pile driving frame 11 , and two jack hoops 23 are spaced apart on the jack 21 . Each jack hoops 23 is connected to the pile driving frame top plate 11 via a plurality of jack zippers 22 , thereby fixing the jack 21 on the pile driving frame top plate 11 .

[0029] The force transmission rod 5 is arranged below the jack 21, with the force-applying pushing surface of the jack 21 facing the force transmission rod 5. A casing 4 is provided on the periphery of the force transmission rod 5 for limiting its position. The casing 4 adopts a symmetrical annular, open clamp-type structure. It can be arranged on the periphery of the force transmission rod 5 to ensure that it only undergoes vertical displacement when subjected to the force of the jack 21, while avoiding horizontal displacement as much as possible, thereby improving the accuracy of force transmission and ensuring that the steel pipe pile 8 is only subjected to vertical downward pressure, avoiding it from tilting during the pile driving operation. The two sides of the casing 4 are welded and fixed to the pile driving frame columns 13 on both sides through connecting rods to form an integral structure, improving its limiting and restraining effect on the force transmission rod 5.

[0030] In this embodiment, pads are respectively provided at the upper and lower ends of the force transmission rod 5, including a force transmission rod pad 31 provided at the upper end of the force transmission rod 5, the force transmission rod pad 31 being located between the jack 21 and the force transmission rod 5, and a steel pipe pile pad 32 provided at the lower end of the force transmission rod 5, the steel pipe pile pad 32 being located between the steel pipe pile 8 and the force transmission rod 5, to provide support and protection.

[0031] When applied, this embodiment includes the following construction steps:

[0032] 1) Structural raft slab 72 openings:

[0033] A thin-wall drill or rock drill is used to drill pile holes on the structural raft 72 of the existing building basement. Anchor holes matching the anchor rods 62 are symmetrically drilled around the pile holes. The entire drilling operation must avoid the structural columns 71.

[0034] 2) Anchor 62 burial:

[0035] Anchor rods 62 are implanted in the anchor rod holes, grouting material is poured and curing is completed.

[0036] 3) Installation of pile frame:

[0037] The pile frame bottom plate 14 and the pile frame columns 13 are installed and the anchor nuts 61 are tightened to complete the installation and fixation between the pile frame and the structural raft slab 72 .

[0038] 4) Installation of pile frame top plate 11:

[0039] Insert two pile pressing frame pins 12 into the next row of holes in the top two rows of holes of the pressing frame columns 13, place the pile pressing frame top plate 11 on the pile pressing frame pins 12, and fix the two ends of the pile pressing frame top plate 11 to the pile pressing frame columns 13 with zippers, and insert the two pile pressing frame pins 12 on the upper part of the pile pressing frame top plate 11.

[0040] 5) Installation of jack 21:

[0041] A jack 21 is provided at the bottom of the pile frame top plate 11, and two jack hoop 23 are provided at the middle and top of the jack 21 respectively. A jack zipper 22 is provided at the front and back and left and right of each jack hoop 23 to connect with the pile frame top plate 11 and the pile frame column 13.

[0042] (6) Setting of force transmission rod 5:

[0043] The steel pipe pile 8 is placed in the pile driving hole, and a pad is placed at each end of the dowel rod 5. The steel pipe pile pad 32 is placed between the steel pipe pile 8 and the dowel rod 5, and the dowel rod pad 31 is placed between the jack 21 and the dowel rod 5. The dowel rod 5 in this embodiment is divided into different specifications by length. During the pile driving process, the dowel rod 5 of the appropriate length is replaced as the pile driving depth increases.

[0044] (7) Pile pressing:

[0045] The jack 21 is activated to press the steel pipe pile 8 into the ground via the dowel rod 5. When the jack 21 reaches its maximum capacity, the pressure is released. A longer dowel rod 5 is replaced and the pile driving process continues, repeating this process until the steel pipe pile 8 is connected. After the connection is complete, a shorter dowel rod 5 is replaced and the pile driving process continues, repeating the above steps until the building reinforcement requirements are met.

[0046] 8) The pile holes are sealed, and the steel pipe piles 8 are connected to the structural raft 72, completing the building reinforcement.

[0047] Although the above embodiments have described the concepts and embodiments of the present invention in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described here one by one.

Claims

1. A quick anchor static pile pressing device, characterized by: It includes a pile driving frame and a force transmission rod, wherein the pile driving frame includes a pile driving frame top plate and pile driving frame columns, the pile driving frame top plate is fixed between the pile driving frame columns on both sides by pile driving frame pins, a jack is provided at the bottom of the pile driving frame top plate, the force transmission rod is provided below the jack, and the force pushing surface of the jack faces the force transmission rod.

2. The quick anchor static pile pressing device according to claim 1, characterized in that: At least one jack hoop is sleeved on the jack, and the jack hoop is connected to the top plate of the pile driving frame and / or the column of the pile driving frame through a jack zipper.

3. The quick anchor static pile pressing device according to claim 1, characterized in that: The pile driving frame column is provided with a plurality of pin holes evenly spaced along the height direction, and the pin holes are matched with the pins of the pile driving frame.

4. The quick anchor static pile pressing device according to claim 1, characterized in that: A casing is provided between the pile driving frame columns on both sides, and the casing is arranged around the periphery of the force transmission rod.

5. The quick anchor static pile pressing device according to claim 1, characterized in that: A pile pressing frame bottom plate is provided at the bottom of the pile pressing frame column, and the pile pressing frame bottom plate is fixed to the structural raft plate through anchor rods.

6. The quick anchor static pile pressing device according to claim 1, characterized in that: The beam ends of the force transmission rods are respectively provided with pads.

7. The quick anchor static pile pressing device according to claim 1, characterized in that: The dowel rods have different length specifications.

8. The quick anchor static pile pressing device according to claim 1, characterized in that: The top plate of the pile pressing frame is connected to the upright columns of the pile pressing frame via a zipper.

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