Spiral anchor pile pressing counter-force structure and pile pressing device
Through the reaction force structure of spiral anchor piles, the interaction between the rotary blades of the spiral piles and the soil layer is used to provide reaction force support, which solves the problems of difficulty in applying traditional piles in specific sites and low construction efficiency of counterweight block method, and achieves efficient and low-cost pile pressing operations.
Patent Information
- Application Number
- CN202421318818.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Traditional anchor static pressure piles are difficult to apply on newly built buildings and sites with insufficient structural strength or hardness, and the counterweight block method has problems such as high transportation costs and low construction efficiency.
The reaction force structure of spiral anchor piles is adopted, including a base and multiple spiral piles. The spiral end of the spiral pile is screwed into the ground through a rotating blade, and the fixed end is detachably connected to the base. There is a pile fixing part for installing the pile press on the base to provide reaction force to support pile pressing operations.
It realizes efficient pile pressing on various sites, with high applicability, low construction cost and high operating efficiency, and can recycle and reuse spiral piles to save costs.
Smart Images
Figure CN222575473U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geotechnical engineering, in particular to a spiral anchor pile reaction structure and a pile pressing device. Background Art
[0002] Pile pressing refers to an engineering method that uses special pile pressing equipment to press reinforced concrete piles or steel pipe piles into soil or rock layers to form a super strong support system to increase the bearing capacity and stability of the foundation. Traditional anchor static piles are generally pressed in with the help of the building's own structural strength, stability and pull-out strength. However, for new buildings, sites with insufficient structural strength or insufficient hardness, anchor static pile technology is usually not available. In this case, the counterweight block method is generally used for pile pressing. However, the counterweight block method has the disadvantages of high transportation cost and low construction efficiency. Utility Model Content
[0003] Based on this, the purpose of the utility model is to provide a spiral anchor pile reaction force structure and pile pressing device with low construction cost, high working efficiency and high applicability.
[0004] A spiral anchor pile reaction force structure comprises a base and a plurality of spiral piles; the base is provided with a pile driver fixing part for installing a pile driver; the spiral pile comprises a spiral end and a fixed end, the spiral end is provided with a spiral blade, the spiral end is used to be screwed into the ground, and the fixed end is detachably fixedly connected to the base.
[0005] In one of the embodiments, the base includes a base main beam, a base cross beam and multiple reaction force beams, at least two of the base main beams are provided, the base cross beams are transversely connected between the base main beams, and the pile driver fixing part is provided on the base cross beam; the reaction force beam is transversely installed on the base main beam and is located on both sides of the base cross beam, and the fixed end of the spiral pile is detachably fixedly connected to the reaction force beam.
[0006] In one embodiment, each of the reaction beams includes two steel box beams and a plurality of connecting plates, the two steel box beams are arranged in parallel, and the connecting plates are sequentially connected between the two steel box beams at intervals.
[0007] In one of the embodiments, the connecting plates are correspondingly provided on the upper and lower sides of the two steel box girders, and mounting holes are opened on the connecting plates, and the fixed ends of the screw piles are inserted into the mounting holes.
[0008] In one of the embodiments, a bottom plate is laid on the reaction beam and the base main beam, and a counterweight is carried on the bottom plate.
[0009] In one embodiment, the weight is a water-filled bag.
[0010] In one of the embodiments, the base is a raft plate, and pile driving holes are formed on the raft plate. The pile driver fixing part for installing the pile driver is arranged around the pile driving holes; the screw pile is located on the outer side of the raft plate, and the screw pile is connected to the raft plate by a locking plate, and the locking plate is pressed tightly against the raft plate.
[0011] In one of the embodiments, the screw piles are distributed around the raft, one end of the lock plate is fixedly connected to the raft via an expansion screw, and the other end of the lock plate is connected to the fixed end of the screw pile via a threaded fastener.
[0012] In one embodiment, the raft is provided with a ballast.
[0013] The utility model also provides a pile driving device, which comprises a pile driving machine and the above-mentioned spiral anchor pile driving reaction force structure, wherein the pile driving machine is detachably mounted on a pile driving fixing part of the spiral anchor pile driving reaction force structure through bolts.
[0014] The spiral anchor pile reaction structure and pile pressing device described in the utility model have the following advantages over the prior art:
[0015] The special equipment screws the spiral end of the spiral pile into the ground, and detachably connects the fixed end of the spiral pile with the base, and a pile driver fixing part for installing the pile driver is provided on the base. When the spiral anchor pile driving reaction force structure and the pile driving device of the utility model are used, the pile driver is installed and fixed on the pile driver fixing part, and when the pile driver drives the pile body such as reinforced concrete pile or steel pipe pile into, the interaction between the spiral end and the spiral blade of the spiral pile and the ground structure such as the soil layer forms a pull-out force, thereby providing the pile driver with the reaction force required for pile driving, and the position and number of the spiral piles can be arranged accordingly according to the maximum pile driving force and force requirements of the pile driver, and the size of the spiral blade and the center column of the spiral pile can be selected appropriately, so as to provide a sufficiently large reaction force for the operation of the pile driver, and drive the pile body such as reinforced concrete pile or steel pipe pile into a suitable depth, thereby completing the pile driving work. Therefore, when the utility model is used for pile driving operation, there is no need to use the structural strength and pull-out strength of the existing building, and it can be applied to new projects and sites with insufficient structural strength or insufficient hardness, and has high applicability; in addition, the spiral piles are easy to screw in, which improves construction efficiency, and the spiral piles can be recycled and reused, saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the spiral anchor pile reaction structure and pile pressing device of the utility model;
[0017] Figure 2It is a structural schematic diagram of another angle of the spiral anchor pile reaction structure and pile pressing device implementation mode 1 of the utility model;
[0018] Figure 3 It is a schematic diagram of the transverse structure of the reaction beam in the first embodiment of the spiral anchor pile reaction structure and pile pressing device of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the second embodiment of the spiral anchor pile reaction structure and pile pressing device of the utility model;
[0020] 100, base; 110, main beam of base; 120, cross beam of base; 130, fixed part of pile driver; 140, reaction beam; 141, steel box beam; 142, connecting plate; 200, screw pile; 210, screw end; 220, fixed end; 230, rotary blade; 300, bottom plate; 400, counterweight; 1000, raft; 500, locking plate; 600, pile driver. DETAILED DESCRIPTION
[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.
[0022] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is said to be "directly on" another element, there are no intermediate elements.
[0023] Implementation method 1:
[0024] Reference Figures 1 to 3 The present embodiment provides a spiral anchor pile reaction structure, which includes a base 100 and a plurality of spiral piles 200; the base 100 is provided with a pile driver fixing portion 130 for installing a pile driver 600; the spiral pile 200 includes a spiral end 210 and a fixed end 220, the spiral end 210 is provided with a spiral blade 230, the spiral end 210 is used to be screwed into the ground, and the fixed end 220 is detachably fixedly connected to the base 100.
[0025] When the pile driving operation is carried out, the spiral end 210 of the spiral pile 200 is screwed into the ground by using special equipment, and the fixed end 220 of the spiral pile 200 is detachably connected to the base 100. The base 100 is provided with a pile driver fixing part 130 for installing the pile driver 600. The pile driver 600 is installed and fixed on the pile driver fixing part 130. When the pile driver 600 drives the pile body of reinforced concrete pile or steel pipe pile into, the interaction between the spiral end 210 and the rotary blade 230 of the spiral pile 200 and the ground structure such as the soil layer forms a pull-out force, thereby providing the pile driver 600 with the reaction force required for pile driving. The position and number of the spiral piles 200 can be arranged accordingly according to the maximum pile driving force and force requirements of the pile driver 600, and the size of the rotary blade 230 and the size of the central column of the spiral pile 200 can be selected to provide a sufficiently large reaction force for the operation of the pile driver 600, and the pile body of reinforced concrete pile or steel pipe pile can be driven into a suitable depth, thereby completing the pile driving operation.
[0026] Therefore, the use of the utility model for pile driving has the following advantages over the prior art: it does not need to utilize the structural strength and pull-out strength of the existing building, and can be applied to new projects and sites with insufficient structural strength or insufficient hardness, and has high applicability; in addition, the screw pile 200 is easy to screw in, which improves the construction efficiency, and the screw pile 200 can be recycled and reused, saving construction costs. Moreover, the structure of the utility model does not need to use counterweights, and there is no need to transport counterweights and lift counterweights with large hoisting machines, which greatly saves transportation costs and saves the time of lifting counterweights multiple times, and can be applied to occasions and projects with small pile driving engineering quantities.
[0027] Specifically, refer to Figures 1 to 3 The base 100 includes a base main beam 110, a base cross beam 120 and a plurality of reaction beams 140. Two base main beams 110 are provided and arranged in parallel. The base cross beams 120 are transversely connected between the base main beams 110. The pile driver fixing part 130 is arranged on the base cross beam 120. Preferably, a threaded hole for installing and fixing the pile driver 600 is opened on the base cross beam 120, and the pile driver 600 can be installed and fixed on the base cross beam 120 by fasteners such as bolts and nuts. More preferably, the base main beam 110 and the base cross beam 120 are connected by welding and are in contact with the ground at the same time, so that the stability during pile pressing can be enhanced. In addition, the reaction beam 140 is transversely installed on the base main beam 110 and is located on both sides of the base cross beam 120. The fixed end 220 of the screw pile 200 is detachably fixedly connected to the reaction beam 140, so that a relatively balanced reaction force on both sides can be provided for the pile pressing operation.
[0028] Preferably, refer to Figure 1 and Figure 3Each reaction beam 140 includes two steel box beams 141 and a plurality of connection plates 142. The two steel box beams 141 are arranged in parallel, and the connection plates 142 are sequentially connected between the two steel box beams 141 at intervals. The connection plates 142 connect the two steel box beams 141 to form the reaction beam 140. The gap between the two steel box beams 141 leaves space for the fixed end 220 of the screw pile 200. The steel box beam 141 has high structural strength and stability, so it can be stably connected with the screw pile 200, transmit the pull-out resistance between the screw pile 200 and the stratum, and provide reaction force for the pile driving operation.
[0029] Preferably, refer to Figure 1 and Figure 3 The upper and lower sides of the two steel box beams 141 are correspondingly provided with connecting plates 142, and the connecting plates 142 are provided with mounting holes, and the fixed ends 220 of the screw piles 200 are passed through the mounting holes. In this way, the fixed ends 220 of the screw piles 200 can be conveniently fixedly connected to the connecting plates 142 by fasteners such as washers and nuts.
[0030] Further, refer to Figure 2 A bottom plate 300 is laid on the reaction beam 140 and the base main beam 110, and a counterweight 400 is carried on the bottom plate 300. The arrangement of the bottom plate 300 can provide sufficient space for the placement of the counterweight 400, and the counterweight 400 can further provide a greater reaction force for the pile driving operation, thereby driving the pile to a deeper depth.
[0031] Preferably, refer to Figure 2 The counterweight 400 is a water-filled bag. By taking advantage of the flowing nature of water, local materials can be used, such as water pumps and water pipes, without the need for hoisting operations. After the pile is pressed, the water in the water-filled bag is pumped into another water bag at the pile pressing position by a water pump.
[0032] Reference Figure 1 and Figure 2 The utility model also provides a pile driving device, which includes a pile driving machine 600 and the above-mentioned spiral anchor pile driving reaction force structure. The pile driving machine 600 is detachably mounted on the pile driving machine fixing part 130 of the spiral anchor pile driving reaction force structure by bolts.
[0033] Implementation method 2:
[0034] Reference Figure 4This embodiment provides a spiral anchor pile reaction structure, which includes a base 100 and a plurality of spiral piles 200; the base 100 is provided with a pile driver fixing part 130 for installing a pile driver 600; the spiral pile 200 includes a spiral end 210 and a fixed end 220, the spiral end 210 is provided with a spiral blade 230, the spiral end 210 is used to be screwed into the ground, and the fixed end 220 is detachably fixedly connected to the base 100. The base 100 does not adopt the base main beam 110, base cross beam 120 and reaction force cross beam 140 structure described in the first embodiment, and the base 100 directly adopts a raft 1000, that is, a cast-in-place reinforced concrete slab, and the thickness of the raft 1000 is relatively thick. According to the designed pile driving position, pile driving holes are opened on the raft 1000, and the pile driver fixing part 130 for installing the pile driver 600 is arranged around the pile driving holes. The pile driver fixing part 130 preferably adopts the method of opening deep bolt holes. When the pile driver 600 is used for pile driving operation, the pile driver 600 is fixed to the raft 1000 by bolts. Because the raft 1000 is thick and the structural strength is stable, the reaction force of the pile driver 600 when driving the pile will not damage the structure of the raft 1000. The screw pile 200 is located on the outside of the raft 1000, that is, directly on the ground outside the raft 1000. Special equipment is used to screw the screw pile 200 into the ground. The screw pile 200 is connected to the raft 1000 by a locking plate 500, and the locking plate 500 is pressed against the raft 1000. In this way, during the pile driving operation, the connection between the screw pile 200 and the raft 1000 can avoid imbalance or even warping around the raft 1000, and the surrounding area of the raft 1000 can be pressed, while further providing the reaction force required for pile driving.
[0035] Preferably, refer to Figure 4 The screw piles 200 are distributed around the raft 1000, one end of the locking plate 500 is fixedly connected to the raft 1000 by an expansion screw, and the other end of the locking plate 500 is connected to the fixed end 220 of the screw pile 200 by a threaded fastener. The expansion screw can firmly connect the raft 1000 and the locking plate 500, and it is easy to disassemble and assemble.
[0036] Further, refer to Figure 4 The raft 1000 is loaded with a counterweight 400, which together with the raft 1000 provide a reaction force for the pile driving operation to ensure that the pile is driven to a sufficient depth. The counterweight 400 is preferably a water-filled bag, and of course, construction materials on site can also be piled on the raft 1000.
[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A spiral anchor pile reaction structure, characterized in that: It comprises a base and a plurality of screw piles; the base is provided with a pile driver fixing part for installing a pile driver; the screw pile comprises a screw end and a fixing end, the screw end is provided with a screw blade, the screw end is used to be screwed into the ground, and the fixing end is detachably fixedly connected to the base.
2. The spiral anchor pile reaction structure according to claim 1, characterized in that: The base comprises a base main beam, a base cross beam and a plurality of reaction force cross beams, at least two of the base main beams are provided, the base cross beams are transversely connected between the base main beams, and the pile driver fixing part is provided on the base cross beam; the reaction force cross beam is transversely installed on the base main beam and is located on both sides of the base cross beam, and the fixed end of the spiral pile is detachably fixedly connected to the reaction force cross beam.
3. The spiral anchor pile reaction structure according to claim 2, characterized in that: Each of the reaction beams comprises two steel box beams and a plurality of connecting plates. The two steel box beams are arranged in parallel, and the connecting plates are sequentially connected between the two steel box beams at intervals.
4. The spiral anchor pile reaction structure according to claim 3 is characterized in that: The connecting plates are correspondingly arranged on the upper and lower sides of the two steel box beams, and mounting holes are opened on the connecting plates, and the fixed ends of the screw piles are inserted into the mounting holes.
5. The spiral anchor pile reaction structure according to claim 3, characterized in that: A bottom plate is laid on the reaction force cross beam and the base main beam, and a counterweight is carried on the bottom plate.
6. The spiral anchor pile reaction structure according to claim 5, characterized in that: The counterweight is a water bag that can be filled with water.
7. The spiral anchor pile reaction structure according to claim 1, characterized in that: The base is a raft plate, and pile driving holes are opened on the raft plate. The pile driver fixing part for installing the pile driver is arranged around the pile driving holes; the screw pile is located on the outside of the raft plate, and the screw pile is connected to the raft plate by a locking plate, and the locking plate is pressed tightly against the raft plate.
8. The spiral anchor pile reaction structure according to claim 7, characterized in that: The screw piles are distributed around the raft plate, one end of the lock plate is fixedly connected to the raft plate through an expansion screw, and the other end of the lock plate is connected to the fixed end of the screw pile through a threaded fastener.
9. The spiral anchor pile reaction structure according to claim 7, characterized in that: The raft carries a ballast weight.
10. A pile driving device, characterized in that: It comprises a pile driver and a spiral anchor pile reaction structure as claimed in any one of claims 1 to 9, wherein the pile driver is detachably mounted on a pile driver fixing part of the spiral anchor pile reaction structure by means of bolts.