CN218540650U - Sand layer anti-liquefaction pile - Google Patents

Abstract

The utility model discloses a sand layer anti-liquefaction pile, which comprises a soil surface layer, a sand layer is arranged below the soil surface layer, a pile groove 1 is arranged in the sand layer, and a pile groove 1 is arranged in the pile groove 1. For gravel piles, pile groove 2 is arranged on the surface of the covering soil, and a pipe pile frame is arranged in the pile groove 2, and the bottom and top of the pipe pile frame are fixedly installed with fixing seat 1 and fixing seat 2 respectively, and the pipe pile frame The outer surface of the pile frame is nested and slidably connected with an adjustment frame, and the second fixed seat is provided with a threaded groove, and the inner thread of the threaded groove is connected with a screw rod, and the bottom end of the screw rod is rotatably connected with the top of the adjustment frame. In the utility model, the installation of the entire pipe pile frame structure is stable and safe, which effectively ensures the firmness and safety of the through-slot structure used for piling on the surface when piling on the sandy soil layer in the underground position, and the pile groove deformation on the surface is not easy to occur Or the situation of collapse greatly reduces the piling work difficulty of sandy soil layer.

Description

Anti-liquefaction pile in sand layer

technical field

The utility model relates to the technical field of sand layer protection, in particular to a sand layer anti-liquefaction pile.

Background technique

Sandy soil refers to the soil with high sand content in the composition of soil particles. It is one of the basic types of soil texture. The base structure of this type of soil is very loose and the structural strength is low. Therefore, some building facilities built on this type of base are not stable. It is prone to subsidence. For example, on the edge of some river banks, this kind of sandy soil structure is more common. If there are infrastructure facilities in such locations, there will be a certain risk of subsidence. Drive anti-liquefaction piles to improve the stability of the base structure, usually using vibrating equipment to drive into the sand and pour gravel, and the gravel piles formed by vibro-extrusion to improve the firmness of the sand layer ;

Some existing sand layer anti-liquefaction piles located under the surface of the covering soil need to open a pile groove structure for the passage of vibrating equipment in the surface layer of the attached drawing in advance when driving piles, while some conventional pile grooves on the surface of the covering soil are opened. , most of them do not have facilities for fixing pile grooves. Therefore, after the vibrating equipment is driven into the ground, due to the lack of fixed protection for the pile groove structure, it will sink as the equipment enters the sand layer, and it is prone to deformation and collapse. Not only It will affect the equipment, and the follow-up cleaning is difficult, which increases the difficulty of the follow-up piling work.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a sand layer anti-liquefaction pile.

In order to achieve the above object, the utility model adopts the following technical scheme: a sand layer anti-liquefaction pile, including a soil surface layer, a sand layer is arranged below the soil surface layer, and a pile groove is arranged in the sand layer. A gravel pile is arranged in the pile groove one, a pile groove two is arranged on the surface layer of the covering soil, a pipe pile frame is arranged in the pile groove two, the bottom and the top of the pipe pile frame are respectively fixedly installed with fixed Seat one and fixed seat two, and the outer surface of the pipe pile frame is nested and slidably connected with an adjustment frame, the fixed seat two is provided with a threaded groove, and the internal thread of the threaded groove is connected with a screw rod, and the bottom end of the screw rod is connected to the The top of the adjustment frame is rotatably connected, and the outside of the pipe pile frame is provided with a compression plate, and the upper and lower positions of the outer surface of the compression plate are fixedly connected with a fixed block 1, and the top of the fixed seat 1 is connected to the bottom of the adjustment frame. The fixed block two is fixedly connected, and the two fixed block one and the two fixed block two brackets are connected through the rotation of the connecting rod. A filling layer is provided, a grouting channel is provided inside the pipe pile frame, a grouting hole is provided on the inner wall of the grouting channel, and a grouting layer is provided outside the pipe pile frame.

As a further description of the above technical solution:

The top of the screw rod is fixedly connected with a turntable at the upper position of the second fixed seat.

As a further description of the above technical solution:

There are multiple compression plate structures that are evenly distributed on the outside of the pipe pile frame.

As a further description of the above technical solution:

The position of the vibrating through groove corresponds to the position of pile groove one.

As a further description of the above technical solution:

The grouting holes are provided in multiples and evenly distributed on the pipe pile frame.

As a further description of the above technical solution:

The grouting layer is located between the first fixing seat and the second fixing seat, and the material of the grouting layer is cement mortar.

The utility model has the following beneficial effects:

The anti-liquefaction pile in the sandy soil layer, through the setting of the entire pipe pile frame structure, can set a stable pile groove fixing structure for piling on the surface layer of the attached drawing on the surface of the sandy soil layer. The structure is positioned accurately, and it is stable and safe after installation. It is convenient to use vibrating equipment to open pile grooves and drive gravel piles in the sandy soil layer below the surface layer. The whole pipe pile frame structure is installed stably and safely, which effectively ensures that the surface layer will not be damaged when piling the sandy soil layer underground. The solidity and safety of the through-slot structure used for piling is not prone to deformation or collapse of the pile slot on the surface, which greatly reduces the difficulty of piling work in sandy soil layers, and at the same time ensures the stability of the work and reduces the occurrence of accidents At the same time, it can also assist in improving the structural strength of the entire base soil, which is safe and effective to use and ensures the construction quality.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of anti-liquefaction pile of sand layer that the utility model proposes;

Fig. 2 is a structural schematic diagram of a pipe pile frame of a sand layer anti-liquefaction pile proposed by the utility model.

illustration:

1. Covering soil surface layer; 2. Sand layer; 3. Pile groove one; 4. Gravel pile; 5. Pile groove two; 6. Pipe pile frame; 7. Fixed seat one; 8. Fixed seat two; frame; 10, thread groove; 11, screw rod; 12, turntable; 13, pressing plate; 14, fixed block one; 15, fixed block two; 16, connecting rod; 19. Grouting channel; 20. Grouting hole; 21. Grouting layer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Therefore, it cannot be construed as a limitation on the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance. In addition, Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, and it can be an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Referring to Fig. 1-2, an embodiment provided by the utility model: an anti-liquefaction pile in a sandy soil layer, comprising a soil surface layer 1, a sandy soil layer 2 is arranged below the soil surface layer 1, and a pile is arranged in the sandy soil layer 2 Groove one 3, gravel pile 4 is arranged in pile groove one 3, and gravel pile 4 is a fixed pile structure formed by vibrating and extruding a large amount of gravel through vibrating equipment, and is a common sandy soil anti-liquefaction The pile can ensure the stability of the sandy soil structure and has a good protective effect on its liquefaction. The pile groove 2 5 is arranged on the covering soil surface layer 1, and the position of the pile groove 2 5 corresponds to the position of the pile groove 1 3, and The size of the pile groove 2 5 is larger than that of the pile groove 1 3, and the main function of the pile groove 2 5 is to open a through groove in the soil surface layer 1 above the sand layer 2, which is used to drive the anti-liquefaction pile into the sand layer 2 in the future. The pipe pile frame 6 is arranged in the groove two 5, and the bottom and the top of the pipe pile frame 6 are respectively fixedly installed with a fixed seat 7 and a fixed seat 2 8, and the slotting size of the pile groove 2 5 is based on the size of the fixed seat structure. Grooving, so that the pipe pile frame 6 can be conveniently installed in the pile groove 2 5, and the outer surface of the pipe pile frame 6 is nested and slidably connected with an adjustment frame 9, and the adjustment frame 9 is located at the lower position of the fixing seat 2 8, and fixed Seat two 8 are provided with threaded groove 10, and threaded groove 10 internal thread is connected with screw rod 11, and the bottom of screw rod 11 is connected with the rotation of adjusting frame 9 tops, and screw rod 11 structure is provided with two groups, and is positioned at two groups on the fixed seat two 8. The side position can ensure the stability of the adjustment frame 9 during operation. The outside of the pipe pile frame 6 is provided with a compression plate 13, and the upper and lower positions of the outer surface of the compression plate 13 are fixedly connected with a fixed block-14 and a fixed seat-7. The top of the top and the bottom of the adjustment frame 9 are all fixedly connected with two fixed blocks 15, two fixed block one 14 and two fixed block two 15 supports are all connected by connecting rod 16 rotation, the fixed block two 15 on the adjustable frame 9 is connected with the press On the tight plate 13, the fixed block one 14 near the top position is rotatably connected by a connecting rod 16, and the fixed block two 15 on the fixed seat 7 and the fixed block one 14 near the bottom position on the pressing plate 13 are rotated by the connecting rod 16 Connect, so that when the adjustment frame 9 descends, the two connecting rods 16 can be rotated to push the pressure plate 13 to move outside, so that it can be stably squeezed onto the inner wall of the pile groove 2 5, thus ensuring that the pipe pile The positioning of the frame 6 can be firmly positioned, avoiding the deformation or collapse of the pile groove 25, and improving the stability of the subsequent pile driving in the sandy soil layer 2. The center of the pipe pile frame 6 is provided with a vibrating through groove 17, and the vibrating through groove 17 is to facilitate the vibrating equipment to extend into the sand layer 2 for slotting and piling operation. A filling layer 18 is arranged in the vibrating through groove 17. The filling layer 18 can seal the through groove after the piling is completed. The filling layer 18 Can adopt concrete material, be provided with grouting through groove 19 in pipe pile frame 6, be provided with grouting hole 20 on the inner wall of grouting through groove 19, be provided with grouting layer 21 outside pipe pile frame 6, the setting of grouting structure, can Grouting is performed after the compression plate 13 is extended, so that a firm and stable sealing effect is formed between the pipe pile frame 6 and the pile groove 2 5, ensuring the stability and safety of the subsequent sand layer 2 piling.

The top of the screw rod 11 is fixedly connected with the rotating disk 12 at the position above the fixed seat 2 8, and the setting of the rotating disk 12 can facilitate the adjustment operation of the screw rod 11.

The structure of the compression plate 13 is provided with multiple and evenly distributed on the outside position of the pipe pile frame 6. The setting of a plurality of compression plates 13 can facilitate the firm and stable extrusion and fixing work on the surrounding inner walls of the pile groove 2 5, thereby ensuring This ensures the stability of the pile groove 25 groove wall, and also realizes the precise and stable positioning of the pipe pile frame 6 at the same time.

The position of the vibrating through groove 17 corresponds to the position of the pile groove one 3, and the output end of the vibrating equipment extends into the sandy soil layer 2 through the vibrating through groove 17 for slotting, which facilitates subsequent piling work.

A plurality of grouting holes 20 are provided and evenly distributed on the pipe pile frame 6 , and the plurality of grouting holes 20 can realize rapid filling of the grouting layer 21 .

The grouting layer 21 is located between the fixed seat 7 and the fixed seat 2 8, and the material of the grouting layer 21 is cement mortar, which is a concrete structure, which can ensure the firmness of the pipe pile frame 6 positioning.

Working principle: When using anti-liquefaction piles in sandy soil layer, pile groove 2 5 is set in the surface layer 1 of the covering soil, the pipe pile frame 6 is placed in the pile groove 2 5, and the turntable 12 is rotated, and the turntable 12 drives the screw 11 to rotate, and the screw 11 passes through Cooperating with the thread groove 10, the adjustment frame 9 is pushed down, and the adjustment frame 9 pushes the connecting rod 16. Through the configuration of the two sets of connecting rods 16, the compression plate 13 can be pushed to extend laterally to the outside, and the compression plate 13 can be squeezed to the pile. On the inner wall of groove two 5 and pressed tightly, the precise and stable positioning and fixing of the pipe pile frame 6 can be realized. Grouting is carried out in the gap to form the grouting layer 21, so that the pipe pile frame 6 can be firmly and stably positioned in the soil surface layer 1, and the top of the vibrating equipment can be passed through the vibrating through groove 17, and the vibrating equipment can work slowly. Drive into the sandy soil layer 2 to form a pile groove 1, and pour gravel into the vibrating through groove 17, and the crushed stone will automatically fall into the pile groove 3 through the vibrating through groove 17, and with the vibrating equipment The crushed stone pile 4 is formed by movement, thereby completing the piling operation on the sandy soil layer 2, and finally pouring concrete into the vibrating channel 17 to form the filling layer 18, and the piling work of the entire anti-liquefaction pile can be completed.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (6)

1. The utility model provides a sand bed anti liquefaction stake, includes earthing top layer (1), its characterized in that: the soil covering device is characterized in that a sand layer (2) is arranged below the soil covering surface layer (1), a first pile groove (3) is formed in the sand layer (2), a gravel pile (4) is arranged in the first pile groove (3), a second pile groove (5) is formed in the soil covering surface layer (1), a tubular pile frame (6) is arranged in the second pile groove (5), a first fixing seat (7) and a second fixing seat (8) are fixedly arranged at the bottom and the top of the tubular pile frame (6) respectively, a regulating frame (9) is slidably connected with the outer surface of the tubular pile frame (6), a threaded groove (10) is arranged on the second fixing seat (8), a screw rod (11) is connected with the inner thread of the threaded groove (10), the bottom of the screw rod (11) is rotatably connected with the top of the regulating frame (9), a pressing plate (13) is arranged on the outer side of the tubular pile frame (6), a first fixing block (14) is fixedly connected with the outer surface of the pressing plate (13) at the upper position and the lower position, a second fixing block (15) is fixedly connected with a second fixing block (15) through a connecting rod (17) which is rotatably connected with the central support (6), and a pipe punching connecting rod (17) is arranged in the through a pipe punching groove (17), a grouting through groove (19) is formed in the tubular pile frame (6), a grouting hole (20) is formed in the inner wall of the grouting through groove (19), and a grouting layer (21) is arranged on the outer side of the tubular pile frame (6).

2. The sand soil layer liquefaction resisting pile as claimed in claim 1, wherein: and the top end of the screw rod (11) is fixedly connected with a turntable (12) at the position above the second fixing seat (8).

3. The sand layer liquefaction resisting pile as claimed in claim 1, wherein: the structure of the pressure strip (13) is provided with a plurality of pressure strips which are evenly distributed at the outer side of the tubular pile frame (6).

4. The sand layer liquefaction resisting pile as claimed in claim 1, wherein: and the position of the vibroflotation through groove (17) corresponds to the position of the pile groove I (3).

5. The sand layer liquefaction resisting pile as claimed in claim 1, wherein: the grouting holes (20) are arranged on the tubular pile frame (6) in a plurality of uniformly distributed modes.

6. The sand layer liquefaction resisting pile as claimed in claim 1, wherein: the grouting layer (21) is located between the first fixing seat (7) and the second fixing seat (8), and the grouting layer (21) is made of cement mortar.

Images