CN210117719U

CN210117719U - Assembled steel pile with flange

Info

Publication number: CN210117719U
Application number: CN201920512668.2U
Authority: CN
Inventors: 赵俭斌; 郭泗煜; 张岩
Original assignee: Shenyang Jianzhu University
Current assignee: Liaoning Jianyue Engineering Technology Co., Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-02-28
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses an assembled piling bar with flange is formed by the equipment of a plurality of monomer piling bars, the monomer piling bar includes two triangle cylindricality steel pipes, deformed steel plate, steel pipe intussuseption and bolt, constitutes the cuboid steel pipe behind two triangle cylindricality steel pipe fixed connection, and deformed steel plate is the edge of a wing of piling bar, and the cuboid steel pipe passes through bolt and deformed steel plate fixed connection, and two triangle cylindricality steel pipes are poured into to the steel pipe intussuseption. The utility model discloses a structure that combination triangle-shaped steel pipe and deformed steel plate make the edge of a wing fuses the form, can full play steel intensity height, stability good, rigidity is big, the effectual characteristics of stagnant water, compare with ordinary steel-pipe pile and have higher anti side direction bearing capacity, solve the engineering problem pluralism more, application range is more extensive. The foundation pit excavation device can be combined randomly according to the specific conditions in the actual foundation pit excavation process on site, is convenient and quick, and has good economic and social benefits.

Description

Assembled steel pile with flange

Technical Field

The utility model belongs to the technical field of geotechnical engineering, especially, relate to an assembled steel pile with flange.

Background

The traditional steel pipe pile has the advantages of simple structure, good impact performance, easy processing of joints, easy lap joint, convenient use, good sealing performance and convenient transportation; the Larsen steel sheet pile plays an important role in projects such as wharfs and unloading yards as retaining walls, retaining walls and embankment revetments. The Larsen steel sheet pile cofferdam has a good waterproof function, but two kinds of steel pipe piles have limitations in use, such as complex construction process, high cost, long operation period and the like by using traditional foundation pit supporting equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an assembled piling bar with flange, this piling bar can realize quick installation to can reuse. The water-stopping device has the characteristics of environmental protection, obvious water-stopping effect and stable structure.

The utility model adopts the technical proposal that:

the utility model provides an assembled piling bar with flange, is formed by the equipment of a plurality of monomer piling bars, the monomer piling bar includes two triangular prism shape steel pipes, steel sheet, steel pipe intussuseption and bolt, constitutes the cuboid steel pipe behind two triangular prism shape steel pipe fixed connection, and the steel sheet is the flange of piling bar, and the cuboid steel pipe passes through bolt and steel sheet fixed connection, and two triangular prism shape steel pipes are gone into to the steel pipe intussuseption.

Furthermore, one side of each steel plate is provided with a protrusion, the other side of each steel plate is provided with a groove, and adjacent steel plates are connected with the grooves in an assembling mode through the protrusions.

Still further, the steel plate comprises a bottommost end plate, a topmost end plate and a standard end plate, and the bottommost end plate, the topmost end plate and the standard end plate are connected together through a tongue-and-groove structure.

Furthermore, the bottom of the topmost end plate is provided with a groove, the top of the standard end plate is provided with a protrusion, the bottom of the protrusion is provided with a groove, the top of the bottommost end plate is provided with a protrusion, and adjacent end plates are spliced together.

Furthermore, the filler in the steel pipe is coarse sand and mixed sand and stone in part of the foundation pit.

The utility model has the advantages and beneficial effects that:

the utility model relates to an assembled steel pile with flange is applicable to the fine sand, and weak soil and groundwater are in regions such as abundant. The integral structure of the steel tube comprises a triangular steel tube, a steel plate, a bolt and a steel tube filler. Connecting the steel plate with the short side of the triangular steel pipe by using a bolt to form a whole; the left end and the right end of the steel plate are provided with a groove and a bulge, and the steel plates are mutually buckled and lapped through the tongue-and-groove structure for fixing; the plurality of assembled connecting units are connected end to form a transverse connecting device, so that a continuous assembled steel pipe pile supporting structure with a water stopping function is formed around the foundation pit; the assembled steel pile is inserted into a soft soil foundation soil layer to bear the lateral soil pressure of the foundation pit; the assembly type steel pile can be installed in sections according to field conditions during construction, and the triangular steel pipe and the steel plate are connected through bolts to form the steel pile with the flange; after the driving construction of the assembled steel pipe pile is completed, backfilling coarse sand and part of mixed gravel in the foundation pit into the steel pipe in a filler mode; the water stopping height of the assembled steel pipe pile can be freely spliced by steel plates according to the actual engineering phenomenon. The utility model discloses on the advantage basis that has fused traditional steel-pipe pile and Larsen steel sheet pile, provide a novel assembled steel pipe pile foundation ditch supporting construction, have intensity height, rigidity big, stability good, the stagnant water effect is obvious, the characteristics of simple and convenient, green of construction. The combined triangular steel pipe and the steel plate are adopted as the flange structure fusion form, the characteristics of high strength, good stability, large rigidity and good water stopping effect of steel can be fully exerted, and compared with a common steel pipe pile, the combined triangular steel pipe has higher lateral bearing capacity, solves the engineering problem more diversified and has wider application range. The foundation pit excavation device can be combined randomly according to the specific conditions in the actual foundation pit excavation process on site, is convenient and quick, and has good economic and social benefits. The foundation pit excavation construction method has the advantages of greatly improving the working efficiency of foundation pit excavation, shortening the construction period, having good soil-resistant side bearing capacity and rigidity, strong stability, good waterproof performance, recycling and reuse and good economic benefit. The utility model discloses a segmentation equipment part can use bolted connection to become the stake as required in the work progress, and on-the-spot welding work volume is less, and construction speed is fast. In the construction process, the steel pipe pile is pressed into a foundation soil layer in a piling mode, and coarse sand is filled into the triangular steel pipe, so that the strength and the bending resistance of the pile body are improved, and the stability of a foundation pit is improved.

Drawings

Fig. 1 is a top view of an assembled steel pile with flanges according to the present invention;

fig. 2 is a schematic perspective view of an assembled steel pile with flanges according to the present invention;

FIG. 3 is a schematic view of the bottom-most end plate;

FIG. 4 is a schematic view of the configuration of the topmost panel;

FIG. 5 is a schematic diagram of a standard endplate;

FIG. 6 is a detailed view of the connection of the fabricated steel pile with flanges according to example 1;

FIG. 7 is another detail view showing the connection of the fabricated steel pile with flanges according to example 2;

fig. 8 is a structural schematic diagram of a single steel pile.

In the figure: 1-triangular steel pipe, 2-steel plate, 3-steel pipe filler, 4-bolt, 4-1-bolt rod, 4-2-bolt nut and 4-3-bolt washer.

Detailed Description

For further explanation of the present invention, the following detailed description of the present invention is provided with reference to the drawings and examples, which should not be construed as limiting the scope of the present invention.

Example 1:

as shown in fig. 1 and 2, the assembled steel pile with flanges of the present invention is assembled by a plurality of single steel piles.

As shown in fig. 8, the single steel pile comprises two hollow triangular prism-shaped steel pipes, a steel plate, a steel pipe filler and a bolt.

As shown in fig. 6, the hypotenuses of the two triangular steel pipes 1 are overlapped, and the overlapped surfaces are connected by spot welding to ensure that the two triangular steel pipes are integrated, or the overlapped surfaces are bolted to connect.

The two hollow triangular-cylindrical steel pipes are fixedly connected to form a rectangular steel pipe, the steel plate is a flange of the steel pile, the center of a long edge of the steel pile is aligned with the center of a short edge of the triangular-cylindrical steel pipe, and the two sides of the central line are fixed together by bolts 4 respectively. After the steel pile with the flange is integrally driven, the filler in the steel pipe is filled into the two hollow triangular prism-shaped steel pipes to increase the bending resistance and the shearing resistance, so that the integral stability is improved. The filler in the steel pipe is coarse sand and mixed sand and stone in part of the foundation pit. Because the triangular column shape steel pipe has stability, the bevel edges, namely the maximum faces, of the two steel pipes are overlapped together and connected at the joint along the longitudinal direction of the pile body, so that the two triangular column shape steel pipes can be connected into a rigid whole. Pre-punching holes on two sides of the center line of the short side of the triangular column-shaped steel pipe when the triangular column-shaped steel pipe is manufactured for convenient assembly, wherein the diameter of the hole is the same as the diameter of a bolt rod 4-1 of a used bolt; pre-punching holes on two sides of the center line of the length of the deformed steel plate, wherein the diameter of the hole is the same as the diameter of a bolt rod 4-1 of a used bolt.

As shown in fig. 6, the bolt includes a bolt shank 4-1, a bolt nut 4-2, and a bolt washer 4-3.

The steel plate 2 comprises a bottommost end plate 21, a topmost end plate 22 and a standard end plate 23, the bottom most end plate 21, the topmost end plate 22 and the standard end plate 23 are freely spliced and combined according to the underground water condition according to needs, and the bottommost end plate 21, the topmost end plate 22 and the standard end plate 23 are connected together through a tongue-and-groove structure to form a combined structure with a good water stopping effect.

The bottom of the topmost panel is provided with a recess, as shown in figure 4. As shown in fig. 5, the top of the standard endplate is provided with a protrusion and the bottom is provided with a groove. As shown in figure 3, the top of the bottommost end plate is provided with a bulge, and adjacent end plates are spliced together.

The utility model discloses the assembly procedure as follows:

factory prefabricated parts:

a. prefabricating basic parts in a factory according to the drawing: triangular steel pipe 1, steel sheet 2, wherein steel sheet 2 has three kinds of structures, the classification work of doing well.

b. Holes are punched on the two sides of the center line of the short side of the triangular steel pipe 1 every 500mm along the longitudinal direction of the steel pipe according to the bolt rod diameter of the bolt.

c. Holes are punched on both sides of the center line of the long side of the steel plate 2 every 500mm along the longitudinal direction of the steel plate according to the bolt diameter of the bolt.

And (3) field assembly construction:

d. the inclined planes of the two triangular steel pipes 1 are butted, and welding is carried out from bottom to top along the pile length direction in a spot welding mode.

e. And d, assembling the bottommost section by utilizing the bottommost end plate of the steel plate 2 and the steel pipe pile combined in the step d to penetrate through a pre-reserved hole and utilizing a bolt 4 to be connected and fixed to form a pile bottom end flange.

f. And d, assembling the standard section by utilizing a standard end plate of the steel plate 2 and the steel pipe pile combined in the step d to penetrate through a pre-reserved hole and utilizing a bolt 4 to connect and fix to form a pile middle section flange.

g. And d, the topmost plate of the steel plate 2 and the steel pipe pile combined in the step d are used for assembling the topmost section, penetrate through a pre-reserved hole and are fixedly connected through a bolt 4 to form a top flange.

h. And (4) engaging and inserting the three steel plates in the step efg through the grooves and the protrusions at the upper end and the lower end of the plate in longitudinal connection to form a full-section flange of the single pile, so that the water stopping effect and the connection stability are ensured.

i. And h, driving the formed single pile with the flange into the foundation integrally by using a pile driver.

j. The connection in the horizontal direction is carried out seamless lap joint and is driven into the foundation according to the groove and the bulge which are arranged in advance at the two ends of the steel plate 2 at the left side and the right side of the flange through the single pile body formed by repeating the steps.

k. And after all the steel pipe piles are in place, backfilling coarse sand and part of mixed sand and stones in the foundation pit into the steel pipes in the form of the fillers 3 in the pipes.

And l, after the construction of the foundation pit supporting engineering is finished, the prefabricated steel pipe pile component can be recycled.

Example 2:

as shown in fig. 7, the present embodiment differs from embodiment 1 only in that: the bevel edges of the two triangular steel pipes 1 are overlapped and connected through a bolt joint overlapped surface. The rest is the same as example 1.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an assembled steel pile with flange which characterized in that: the steel pile is assembled by a plurality of steel piles, each steel pile comprises two triangular prism-shaped steel pipes (1), a steel plate (2), steel pipe inner fillers (3) and bolts (4), the rectangular steel pipe is formed after the two triangular prism-shaped steel pipes are fixedly connected, the steel plate (2) is the flange of the steel pile, the rectangular steel pipe passes through the bolts (4) and the steel plate (2) and is fixedly connected, and the steel pipe inner fillers (3) are poured into the two triangular prism-shaped steel pipes.

2. The assembled steel pile with flange according to claim 1, wherein: one side of the steel plate (2) is provided with a protrusion, the other side of the steel plate is provided with a groove, and adjacent steel plates are connected through the protrusion and the groove in an assembled mode.

3. The assembled steel pile with flange according to claim 1 or 2, wherein: the steel plate (2) comprises a bottommost end plate (21), a topmost end plate (22) and a standard end plate (23), and the bottommost end plate, the topmost end plate and the standard end plate are connected together through a tongue-and-groove structure.

4. The assembled steel pile with flange according to claim 3, wherein: the bottom of the topmost end plate (22) is provided with a groove, the top of the standard end plate (23) is provided with a protrusion, the bottom of the protrusion is provided with a groove, the top of the bottommost end plate (21) is provided with a protrusion, and adjacent end plates are spliced together.