T-shaped pile

Abstract

The T-shaped pile comprises a plurality of bank protection piles which are used for foundation pit support and connected in sequence, each bank protection pile comprises a soil facing part and a water facing part which are connected, and a pile center hole formed in the height direction of the bank protection pile is formed between the soil facing part and the water facing part; a plurality of water inlet holes communicated with the pile center hole are formed in the water facing part, a plurality of water outlet holes communicated with the pile center hole are formed in the soil facing part, and the water inlet holes are located above the water outlet holes; a clamping protrusion and a clamping groove matched with the clamping protrusion are formed in the two sides of the bank protection pile correspondingly. Compared with the prior art, the clamping protrusions and the clamping grooves are arranged on the two sides of the bank protection piles correspondingly, so that the adjacent bank protection piles can be connected through the clamping protrusions and the clamping grooves, connecting pieces are not needed between the adjacent bank protection piles, and the bank protection piles installed later can be guided and positioned through the clamping protrusions and the clamping grooves; and the bank protection effect of the post-installed bank protection pile is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit supporting piles, in particular to a T-type pile. Background Art

[0002] Foundation pit support piles are a type of pile structure specially used for foundation pit support. They are installed around the foundation pit and mainly play the following roles:

[0003] 1. Support the soil layer. In underground engineering construction, in order to prevent soil collapse and ensure the safety of construction workers on site, it is necessary to set up support structures in the soil to support and fix the soil. Foundation pit support piles are a commonly used support structure that can withstand the horizontal and vertical loads of the soil and ensure that the soil layer around the foundation pit will not collapse or slide.

[0004] 2. Resist groundwater pressure. Foundation pit support piles can effectively resist groundwater pressure, prevent soil and water loss inside the foundation pit, and thus ensure the stability of the foundation pit. The reinforced concrete pile wall can play a water-isolating role, transfer the pressure of groundwater to the pile wall, and reduce soil and water loss.

[0005] 3. Share the load. The foundation pit support piles can bear the deadweight, equipment load, soil pressure and other loads during the construction process, and transfer the load to the foundation through the supporting effect, thus ensuring the full utilization of the foundation bearing capacity.

[0006] Therefore, foundation pit support piles are an important foundation pit retaining structure, which is widely used in various types of underground projects, such as subways, tunnels, underground garages, mines, water conservancy and hydropower projects. During the implementation of the project, it is necessary to select appropriate support methods and pile structures according to factors such as stratum conditions, foundation pit shape, soil layer type, etc., to ensure construction progress and construction quality.

[0007] Foundation pit support piles are an important support structure in underground engineering, which mainly play the role of supporting and fixing the soil layer to ensure construction safety and foundation pit stability. In practical applications, it is necessary to select appropriate support methods and pile structures according to specific circumstances, and strictly follow relevant standards and specifications to ensure construction quality and engineering safety.

[0008] Chinese publication number CN208870024U discloses a revetment pile lock buckle and an ecological revetment having the revetment pile lock buckle, wherein the revetment pile lock buckle is used to be embedded between two adjacent pile bodies, and the left and right sides of the revetment pile lock buckle respectively have positioning structures corresponding to the shapes of the adjacent pile bodies, and the revetment pile lock buckle is an integral body made of plastic and / or metal.

[0009] The above-mentioned ecological bank protection pile is provided with a lock buckle for connecting the two pile bodies between the two pile bodies. In actual use, it is necessary to first set the pile body at the bank slope, and then realize the connection between the two pile bodies through the lock buckle. Since the overall weight of the pile body is large and it is affected by the silt at the bottom of the riverbed during the erection process, it is easy to cause the pile body to tilt after the erection is completed, making it difficult to realize the connection between the two adjacent pile bodies through the lock buckle, affecting the overall bank protection effect of the ecological bank protection pile. Utility Model Content

[0010] The utility model aims to overcome the defects in the prior art and provides a T-type pile which is convenient to construct and simple in structure.

[0011] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a T-type pile, including a plurality of bank protection piles connected in sequence for foundation pit enclosure, the bank protection pile including a soil facing part and a water facing part connected to each other, a pile core hole arranged along the height direction of the bank protection pile is formed between the soil facing part and the water facing part; a plurality of water inlet holes connected to the pile core hole are formed on the water facing part, a plurality of water outlet holes connected to the pile core hole are formed on the soil facing part, and the water inlet holes are located above the water outlet holes; a clamping protrusion and a clamping groove matched with the clamping protrusion are respectively formed on both sides of the bank protection pile.

[0012] As a preferred solution of the utility model, a plurality of the revetment piles are arranged in a row, and the engaging protrusions of the revetment piles are engaged with the engaging grooves of adjacent revetment piles, and the engaging grooves of the revetment piles are engaged with the engaging protrusions of adjacent revetment piles.

[0013] As a preferred solution of the utility model, the clamping protrusion is arranged along the length direction of the soil facing portion, and the opening direction of the clamping groove is arranged along the length direction of the soil facing portion.

[0014] As a preferred solution of the utility model, the clamping protrusion and the clamping groove are arranged along the height direction of the revetment pile.

[0015] As a preferred solution of the utility model, the water-facing part includes a water-facing body and a transition part formed on opposite sides of the water-facing body, the pile core hole is formed between the water-facing body and the soil-facing part, and the transition part is located on opposite sides of the pile core hole.

[0016] As a preferred solution of the utility model, the water-facing body is arranged corresponding to the middle of the soil-facing part, and the transition part gradually decreases in size from the inside to the outside.

[0017] As a preferred solution of the utility model, the pile core hole is a through hole structure that penetrates the revetment pile.

[0018] As a preferred solution of the utility model, a plurality of water inlet holes are formed at different levels of the water facing part.

[0019] As a preferred solution of the utility model, a plurality of water outlet holes are formed at different levels of the soil facing portion.

[0020] As a preferred solution of the utility model, the soil-facing part is provided with a plurality of prestressed steel bars arranged along the length direction of the soil-facing part and stirrups arranged along the height direction of the soil-facing part, and the stirrups are arranged on the plurality of prestressed steel bars in a binding manner, and a sleeve for tensioning the prestressed steel bars is pre-embedded at the end of the soil-facing part.

[0021] As a preferred solution of the utility model, the water-facing part is formed with surrounding steel bars arranged around the water-facing part and vertical steel bars arranged along the height direction of the water-facing part, and the surrounding steel bars are connected to the stirrups.

[0022] As a preferred solution of the utility model, a filter screen for filtering water out of the water outlet hole is provided in the pile core hole.

[0023] Compared with the prior art, the utility model has the following beneficial effects: by respectively arranging the clamping protrusions and the clamping grooves on both sides of the bank protection pile, adjacent bank protection piles can be connected through the clamping protrusions and the clamping grooves, no connecting pieces are required between adjacent bank protection piles, and the clamping protrusions and the clamping grooves can guide and position the bank protection piles installed later, thereby ensuring the bank protection effect of the bank protection piles installed later;

[0024] With the setting of water inlet holes, water outlet holes and pile core holes, garbage and impurities on the water surface can be collected. At the same time, when the water level rises, drainage operations can be achieved through the water inlet holes and water outlet holes to prevent the bank from collapsing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the bank protection pile;

[0027] Figure 3 yes Figure 1 Sectional view of the middle AA plane;

[0028] Figure 4 It is a schematic diagram of the water outlet setting;

[0029] Figure 5 It is a reinforcement layout diagram of the utility model;

[0030] Figure 6 It is a schematic diagram of the setting of prestressed steel bars;

[0031] Figure numerals: revetment pile 1, soil facing part 11, water facing part 12, transition part 13, snap-in protrusion 14, snap-in groove 15, water facing body 16, pile core hole 2, water inlet hole 3, water outlet hole 4, filter screen 5, prestressed steel bar 6, sleeve 61, stirrup 7, surrounding steel bar 8, vertical steel bar 9. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-Figure 4 As shown, a T-type pile comprises a plurality of bank protection piles 1 connected in sequence for foundation pit enclosure, the bank protection pile 1 comprises a soil facing portion 11 and a water facing portion 12 connected to each other, a pile core hole 2 arranged along the height direction of the bank protection pile 1 is formed between the soil facing portion 11 and the water facing portion 12; a plurality of water inlet holes 3 connected to the pile core hole 2 are formed on the water facing portion 12, a plurality of water outlet holes 4 connected to the pile core hole 2 are formed on the soil facing portion 11, and the water inlet holes 3 are located above the water outlet holes 4; a clamping protrusion 14 and a clamping groove 15 matched with the clamping protrusion 14 are respectively formed on both sides of the bank protection pile 1.

[0034] The number of bank protection piles 1 is set according to actual needs and the corresponding length of the bank slope. The soil-facing part 11 is set against the bank slope, and the back of the soil-facing part 11 is a flat structure, which is used to stably fit the soil-facing part 11 to the bank slope to ensure the stability and accuracy of the bank protection pile 1 during installation.

[0035] The water-facing portion 12 is arranged toward the water flow, and the water flow can enter the pile core hole 2 through the water inlet hole 3. When the water level in the pile core hole 2 reaches a certain height, the water in the pile core hole 2 can be discharged through the water outlet hole 4, and the water outlet hole 4 can be connected to the municipal rainwater pipe.

[0036] A plurality of revetment piles 1 are arranged in a row, and the engaging protrusions 14 of the revetment piles 1 are engaged with the engaging grooves 15 of the adjacent revetment piles 1 , and the engaging grooves 15 of the revetment piles 1 are engaged with the engaging protrusions 14 of the adjacent revetment piles 1 .

[0037] In the connection of several bank protection piles 1 arranged in a row, the two sides of the same bank protection pile 1 are respectively engaged with two adjacent bank protection piles 1, the engaging groove 15 on one side of the bank protection pile 1 is engaged with the engaging protrusion 14 of the adjacent bank protection pile 1, and the engaging protrusion 14 on the other side of the bank protection pile 1 is engaged with the engaging groove 15 of the adjacent bank protection pile 1, so that several bank protection piles 1 can be connected in sequence along the length direction without the action of connecting parts.

[0038] The snap-fit ​​protrusion 14 is arranged along the length direction of the earth-facing portion 11, and the opening direction of the snap-fit ​​groove 15 is arranged along the length direction of the earth-facing portion 11, ensuring that the snap-fit ​​protrusion 14 and the snap-fit ​​groove 15 are both arranged along the length direction of the earth-facing portion 11, so that when several revetment piles 1 are connected, they are connected sequentially along the length direction of the earth-facing portion 11.

[0039] The snap-in protrusion 14 and the snap-in groove 15 are arranged along the height direction of the bank protection pile 1. During the installation process of the bank protection pile 1, under the action of the snap-in protrusion 14 and the snap-in groove 15, during the installation process of the adjacent bank protection pile 1, the snap-in protrusion 14 or the snap-in groove 15 of the previously installed bank protection pile 1 can be used as the basis, and under the action of the snap-in protrusion 14 or the snap-in groove 15, the subsequently installed bank protection pile 1 can be guided and positioned, ensuring the stable installation between the adjacent bank protection piles 1.

[0040] The water-facing part 12 includes a water-facing body 16 and a transition part 13 formed on opposite sides of the water-facing body 16. The pile core hole 2 is formed between the water-facing body 16 and the soil-facing part 11, and the transition part 13 is located on opposite sides of the pile core hole 2. The water-facing body 16 is arranged corresponding to the middle of the soil-facing part 11. The size of the transition part 13 gradually decreases from the inside to the outside. Under the action of the transition part 13, the water flow is guided. The water flow can flow along the two transition parts 1 of the two connected bank protection piles 1 to buffer the impact of the water flow on the bank slope.

[0041] The pile core hole 2 is a through hole structure that penetrates the bank protection pile 1. After the bank protection pile 1 is installed, riverbed silt gathers at the bottom of the pile core hole 2, and the silt is squeezed into the pile core hole 2 under the squeezing effect of the bottom of the bank protection pile 1 and the riverbed. At the same time, the pile core hole 2 can receive garbage or impurities that enter together with the water inlet hole 3, and the garbage or impurities in the pile core hole 2 can be centrally removed through the top opening of the pile core hole 2.

[0042] A plurality of water inlet holes 3 are formed at different levels of the water receiving portion 12. The water inlet holes 3 at different levels are used to correspond to water levels at different heights, and the levels of the plurality of water inlet holes 3 are all below the highest water level throughout the year. When the water level of the riverbed rises, the number of water inlet holes 3 connected by water flow increases, thereby accelerating the speed at which water flows into the pile core hole 2, while preventing the riverbed water level from rising.

[0043] A plurality of water outlet holes 4 are formed at different horizontal heights of the soil facing portion 11, and the plurality of water outlet holes 4 are all located below the water inlet hole 3. When the water level of the riverbed rises, and the water flows into the pile core hole 2 through the plurality of water inlet holes 3, the water level in the pile core hole 2 rises. The number of water outlet holes 4 connected by the water flow in the pile core hole 2 increases, thereby accelerating the drainage speed in the pile core hole 2 and ensuring the rapid discharge of the riverbed water level.

[0044] A filter net 5 is provided in the pile core hole 2 for filtering the water outflow from the water outlet hole 4. Since there is garbage or impurities entering the pile core hole 2 through the water inlet hole 3, the filter net 5 can prevent the garbage or impurities from entering the municipal rainwater pipeline, thereby achieving stable drainage of the pile core hole 2. At the same time, under the action of the filter net 5, the garbage or impurities are accumulated at the filter net 5, which is convenient for subsequent removal of the garbage or impurities in the pile core hole 2.

[0045] A plurality of prestressed steel bars 6 arranged along the length direction of the soil facing portion 11 and stirrups 7 arranged along the height direction of the soil facing portion 11 are formed in the soil facing portion 11, and the stirrups 7 are tied on the plurality of prestressed steel bars 6, and a sleeve 61 for tensioning the prestressed steel bars 6 is pre-buried at the end of the soil facing portion 11.

[0046] The prestressed steel bars 6 are arranged horizontally and at different levels of the soil facing part 11 . The stirrups 7 are arranged vertically and are used to bind the prestressed steel bars 6 at different heights. Thus, under the action of the stirrups 7 , support for several prestressed steel bars 6 is achieved.

[0047] After the T-type pile is cast as a whole, the sleeve 61 is connected to both ends of the prestressed steel bar 6. Under the fixed connection between the sleeve 61 and the concrete, the prestressed steel bar 6 in the sleeve 61 is tensioned through the sleeve 61, so that the prestressed steel bar 6 meets the design requirements.

[0048] A surrounding steel bar 8 arranged around the water-facing portion 12 and a vertical steel bar 9 arranged along the height direction of the water-facing portion 12 are formed in the water-facing portion 12 , and the surrounding steel bar 8 is connected to the stirrup 7 .

[0049] The surrounding steel bars 8 are arranged horizontally and the vertical steel bars 9 are arranged vertically. Therefore, the horizontally arranged surrounding steel bars 8 and the vertically arranged stirrups 7 must be tied and connected, so that the surrounding steel bars 8, vertical steel bars 9, stirrups 7 and prestressed steel bars 6 form an overall steel cage structure of the T-type pile, which is convenient for the overall casting of the T-type pile.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0051] Although this article uses more of the following terms: bank pile 1, soil facing part 11, water facing part 12, transition part 13, clamping protrusion 14, clamping groove 15, water facing body 16, pile core hole 2, water inlet hole 3, water outlet hole 4, filter screen 5, prestressed steel bar 6, sleeve 61, stirrup 7, surrounding steel bar 8, vertical steel bar 9, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A T-type pile, characterized in that: The invention comprises a plurality of bank protection piles (1) connected in sequence for foundation pit protection, wherein the bank protection pile (1) comprises a soil facing portion (11) and a water facing portion (12) connected to each other, a pile core hole (2) arranged along the height direction of the bank protection pile (1) is formed between the soil facing portion (11) and the water facing portion (12); a plurality of water inlet holes (3) connected to the pile core hole (2) are formed on the water facing portion (12); a plurality of water outlet holes (4) connected to the pile core hole (2) are formed on the soil facing portion (11), and the water inlet holes (3) are located above the water outlet holes (4); and a clamping protrusion (14) and a clamping groove (15) matched with the clamping protrusion (14) are respectively formed on both sides of the bank protection pile (1).

2. A T-type pile according to claim 1, characterized in that: A plurality of the revetment piles (1) are arranged in a row, and the engaging protrusions (14) of the revetment piles (1) are engaged with the engaging grooves (15) of adjacent revetment piles (1), and the engaging grooves (15) of the revetment piles (1) are engaged with the engaging protrusions (14) of adjacent revetment piles (1).

3. A T-type pile according to claim 2, characterized in that: The clamping protrusion (14) is arranged along the length direction of the soil facing portion (11), and the opening direction of the clamping groove (15) is arranged along the length direction of the soil facing portion (11).

4. A T-type pile according to claim 1, characterized in that: The clamping protrusion (14) and the clamping groove (15) are arranged along the height direction of the bank protection pile (1).

5. A T-type pile according to claim 1, characterized in that: The water-facing portion (12) comprises a water-facing body (16) and transition portions (13) formed on opposite sides of the water-facing body (16); the pile core hole (2) is formed between the water-facing body (16) and the soil-facing portion (11); and the transition portions (13) are located on opposite sides of the pile core hole (2).

6. A T-type pile according to claim 5, characterized in that: The water-facing body (16) is arranged corresponding to the middle of the soil-facing part (11); the transition part (13) gradually decreases in size from the inside to the outside; and the pile core hole (2) is a through-hole structure arranged to penetrate the bank protection pile (1).

7. A T-type pile according to claim 1, characterized in that: The soil-facing portion (11) is provided with a plurality of prestressed steel bars (6) arranged along the length direction of the soil-facing portion (11) and stirrups (7) arranged along the height direction of the soil-facing portion (11), and the stirrups (7) are arranged on the plurality of prestressed steel bars (6) in a binding manner, and a sleeve (61) for tensioning the prestressed steel bars (6) is pre-buried at the end of the soil-facing portion (11).

8. A T-type pile according to claim 7, characterized in that: The water-facing portion (12) is provided with surrounding steel bars (8) arranged around the water-facing portion (12) and vertical steel bars (9) arranged along the height direction of the water-facing portion (12), and the surrounding steel bars (8) are connected to the stirrups (7).

9. A T-type pile according to claim 1, characterized in that: The plurality of water inlet holes (3) are formed at different levels of the water facing portion (12), and the plurality of water outlet holes (4) are formed at different levels of the soil facing portion (11).

10. A T-type pile according to claim 1, characterized in that: A filter screen (5) for filtering water outlet from the water outlet hole (4) is provided in the pile core hole (2).

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