Concrete sheet pile with mortise and tenon joint structure and spliced wall

Abstract

A concrete sheet pile with a mortise and tenon joint structure comprises a pile body, a first groove and a second groove are formed in the two sides of the pile body, and a plurality of connecting blocks which are vertically arranged at intervals are arranged in the first groove, and is characterized in that one end of each connecting block is connected with a web, and the other end of each connecting block is exposed out of the first groove to form a guide protruding block; the guide protruding block is provided with a tenon protruding laterally in the front-back direction, the shape of the second groove is matched with that of the tenon, protrusions arranged at intervals are arranged on the side wall of the second groove, the protrusions enable the caliber of the second groove part to be reduced to form a necking part, and the shape of the necking part is matched with that of the guide protruding block. And the guide bump and the tenon on the pile body can be inserted into the second groove of another adjacent pile body. The concrete sheet pile has the advantages that the two adjacent concrete sheet piles are in mortise and tenon connection through the tenons, the guide convex blocks and the second grooves, so that the piles are connected more tightly, the connecting effect is better, and the strength of a spliced wall formed by splicing the concrete sheet piles is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation engineering of various building structure systems, in particular to a concrete sheet pile with a mortise and tenon structure and a spliced ​​wall. Background Art

[0002] During the construction of large underground buildings, slopes, tunnels, port and wharf walls, and river bank protection, temporary or permanent enclosures are required for the foundations of the buildings themselves or the surrounding buildings. At present, U-shaped sheet piles, T-shaped piles, or H-shaped support piles are often used to form protective walls. Among them, the H-shaped prestressed concrete piles include two flanges and a web connecting the two flanges. The cross section of the H-shaped prestressed concrete pile is an H-shape composed of two flanges and a web. The two flanges and the web form grooves extending along the length of the pile body on both sides of the H-shaped prestressed concrete pile. The adjacent two H-shaped prestressed concrete piles are spliced ​​together through the rib grooves on the flanges to form a spliced ​​wall.

[0003] The existing H-type prestressed concrete pile splicing method is such as the Chinese utility model "H-type support pile connection structure" with patent number ZL201320461012.5 (authorization announcement number CN203559411U). The left sides of the two flanges of the H-type support pile body are provided with grooves, and the right sides of the two flanges of the H-type support pile body are provided with convex strips. The convex strips can be inserted into the grooves, thereby splicing two adjacent H-type support pile bodies together.

[0004] Although the above-mentioned H-type prestressed concrete piles can be spliced ​​together through the matching of ribs and grooves, however, due to the narrow width of the flange of the concrete pile plate, the size of the ribs and slots on the flange is also small. The ribs and slots of the concrete pile plate are easily damaged during demoulding or transportation, causing the ribs to be inserted into the slots and possibly fall out, so that the ribs and slots cannot fit tightly together, and the effect of the spliced ​​wall formed by the splicing of the concrete pile plates is poor. In addition, the existing concrete pile plates need to be spliced ​​not only left and right, but also up and down, so that the spliced ​​wall reaches the height required for the enclosure, but the existing method of splicing the concrete pile plates up and down is more cumbersome, and the splicing effect is poor. For this reason, further improvements need to be made to the concrete sheet piles. Summary of the invention

[0005] The first technical problem to be solved by the utility model is to provide a concrete sheet pile with a mortise and tenon structure in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the present utility model to solve the first technical problem is as follows: The concrete sheet pile with mortise and tenon structure includes a pile body. The pile body has two flanges and a web connecting the two flanges, presenting an I-shaped cross-section. The two flanges and the web form grooves extending along the length direction of the pile body on both sides of the pile body, namely the first groove and the second groove respectively. A plurality of connecting blocks are arranged at intervals up and down in the first groove. The front and rear side surfaces of the connecting blocks are integrally formed with the corresponding inner walls of the first groove. It is characterized in that one end of the connecting block is connected to the web, and the other end is exposed outside the first groove to form a guiding convex block. A tenon protruding laterally in the front-rear direction is provided on the guiding convex block. The shape of the second groove is adapted to the tenon. A plurality of protrusions are arranged at intervals on the side wall of the second groove. The protrusions make part of the caliber of the second groove smaller to form a constricted part. The shape of the constricted part is adapted to the guiding convex block. The guiding convex block and the tenon on the pile body can be inserted into the second groove of an adjacent another pile body.

[0007] In order to enable the guiding convex block and the second groove to form guiding, preferably, the cross-section of the guiding convex block is trapezoidal with a smaller outer side and a larger inner side, and the cross-section of the constricted part is trapezoidal with a larger outer side and a smaller inner side. The cross-sections of the guiding convex block and the second groove are in a matching trapezoidal shape, which is more conducive to the guiding convex block being inserted into the second groove to form guiding.

[0008] As a solution for the tenon, preferably, the tenon and the connecting block are of an integral structure. The cross-section of the tenon is trapezoidal with a smaller outer side and a larger inner side. The width of the inner side of the tenon is greater than the width of the outer side of the guiding convex block. The trapezoidal tenon and the guiding convex block of an integral structure are generally in a T-shaped structure. The second groove is a dovetail groove matching the tenon and the guiding convex block. The protrusion can be stuck into the connection part of the tenon and the guiding convex block. Therefore, the tenon can prevent one pile body from moving laterally relative to another pile body, making the connection between piles tighter.

[0009] As another solution for the tenon, preferably, the tenon includes a connecting plate and a bolt. The connecting plate is installed on the outer side of the guiding convex block through the bolt. The width of the connecting plate is greater than the width of the outer side of the guiding convex block. The connecting plate can be a steel plate. The tenon of this solution is also generally in a T-shaped structure with the guiding convex block by means of the connecting plate. The protrusion can be stuck into the connection part of the connecting plate and the guiding convex block. The connecting plate can prevent one pile body from moving laterally relative to another pile body, making the connection between piles tighter.

[0010] Furthermore, a spring is sleeved on the bolt. The two ends of the spring are respectively abutted against the connecting plate and the head of the bolt. The spring enables the connecting plate to adapt to the error in the second groove. The spring enables the connecting plate to move laterally along the bolt. Then, when the protrusion or the side wall in the second groove is damaged during the demoulding or transportation of the pile body, the connecting plate moves laterally by means of the spring, so that the connecting plate can still be adapted to the second groove, thereby reducing the assembly error.

[0011] Furthermore, the tenon further includes two gaskets, and the two gaskets are respectively arranged at both ends of the spring. The gaskets can increase the contact area and buffer the acting force.

[0012] In order to enable the splicing between the upper and lower piles, preferably, the top surface of the web is lower than the top surfaces of the two flanges. The pile body forms a slot at the upper end, and the bottom end of the web extends between the two flanges to form an insertion portion, and the insertion portion can be inserted into the slot of the pile body located below. Through the cooperation of the insertion portion and the slot, the upper and lower two piles are spliced together through the rib groove.

[0013] In order to make the connection block bear force more evenly, preferably, the top surface of the connection block located at the uppermost end is flush with the top surface of the web. The force borne by the connection block can be transmitted to the web.

[0014] Further, a perfusion hole penetrating up and down is formed in the connection block. The perfusion hole has two functions. One is that during pile driving, the high-pressure water pipe can pass through the perfusion hole, and high-pressure water is impacted while driving the pile, which is more conducive to driving the pile; after pile driving is completed and a splicing wall is formed, concrete can also be poured into the space surrounded by the two opposite grooves through the perfusion hole to form a watertight splicing wall, and this kind of splicing wall is suitable for use as a foundation pit enclosure and an urban utility tunnel.

[0015] The second technical problem to be solved by the present utility model is to provide a splicing wall formed by splicing the above-mentioned concrete sheet piles with tenon-and-mortise structures in view of the above-mentioned prior art status.

[0016] The technical solution adopted by the present utility model to solve the second technical problem is: a splicing wall, characterized in that: it includes a plurality of the above-mentioned concrete sheet piles, and the pile bodies are spliced together by inserting the guiding convex blocks and tenons into the second grooves of adjacent other pile bodies.

[0017] Compared with the prior art, the advantages of the present utility model are as follows: a plurality of connection blocks arranged at intervals up and down are provided in the first groove of the concrete sheet pile, guiding convex blocks are arranged at the outer ends of the connection blocks, tenons are arranged on the guiding convex blocks, and the shape of the second groove is adapted to the tenons and guiding convex blocks, so that a tenon-and-mortise connection is formed between two adjacent concrete sheet piles through the tenons, guiding convex blocks and the second groove, thereby making the connection between the piles closer, the connection effect better, and further enhancing the strength of the splicing wall formed by splicing the concrete sheet piles. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 It is a sectional view of Embodiment 1 of the present utility model;

[0020] Figure 3 Schematic diagram of the structure of the concrete sheet piles in Embodiment 1 of the present utility model spliced into a splicing wall;

[0021] Figure 4 is Figure 3 top view;

[0022] Figure 5 is Figure 3 exploded view of the upper and lower two concrete sheet piles in

[0023] Figure 6 Schematic diagram of the structure of Embodiment 2 of the present utility model;

[0024] Figure 7 Schematic diagram of the structure of the tenon in Embodiment 2 of the present utility model;

[0025] Figure 8 Top view of the splicing of two concrete sheet piles in Embodiment 2 of the present utility model. Detailed implementation manners

[0026] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] As Figures 1 to 5 shown, it is Embodiment 1 of the present utility model.

[0028] As Figures 1 to 5 shown, the concrete sheet pile of this embodiment includes a pile body 1. The pile body 1 has two flanges 11 and a web 12 connecting the two flanges 11 to form an I-shaped cross-section. The two flanges 11 and the web 12 form grooves extending along the length direction of the pile body 1 on both sides of the pile body 1, namely the first groove 1a and the second groove 1b respectively. A plurality of connecting blocks 2 arranged at intervals up and down are provided in the first groove 1a. The front and rear side surfaces of the connecting block 2 are formed integrally with the corresponding inner walls of the first groove 1a. One end of the connecting block 2 is connected to the web 12, and the other end is exposed outside the first groove 1a to form a guiding convex block 21. A tenon 3 protruding laterally in the front-rear direction is provided on the guiding convex block 21. The tenon 3 and the connecting block 2 are of an integral structure. The cross-section of the tenon 3 is trapezoidal with a smaller outer side and a larger inner side. The width D1 inside the tenon 3 is greater than the width D2 outside the guiding convex block 21. The shape of the second groove 1b is adapted to the tenon 3. A plurality of spaced protrusions 4 are provided on the side wall of the second groove 1b. The protrusions 4 make part of the aperture of the second groove 1b become smaller to form a constricted portion 1c. The shape of the constricted portion 1c is adapted to the guiding convex block 21. The cross-section of the guiding convex block 21 is trapezoidal with a smaller outer side and a larger inner side. The cross-section of the constricted portion 1c is trapezoidal with a larger outer side and a smaller inner side. The guiding convex block 21 and the tenon 3 on the pile body 1 can be inserted into the second groove 1b of an adjacent another pile body 1, so as to form a tenon and mortise connection between the two pile bodies 1.

[0029] As Figure 2 and Figure 5As shown, the top surface of the web 12 of this embodiment is lower than the top surfaces of the two flanges 11. The pile body 1 forms a slot 13 at the upper end. The bottom end of the web 12 extends between the two flanges 11 to form an insertion portion 121. The insertion portion 121 can be inserted into the slot 13 of the pile body 1 located below. Through the cooperation of the insertion portion 121 and the slot 13, the upper and lower piles are spliced together by the rib-slot cooperation. And the top surface of the connection block 2 at the uppermost end is flush with the top surface of the web 12, making the force on the connection block 2 more uniform. In addition, a perfusion hole 22 that penetrates up and down is provided on the connection block 2.

[0030] As Figure 3 and Figure 4 As shown, the pile body 1 of this embodiment is spliced together left and right by the guiding convex block 21 and the tenon 3 inserted into the second groove 1b of another adjacent pile body 1. The pile body 1 is spliced together up and down by the rib-slot cooperation of the insertion portion 121 and the slot 13. After the pile driving is completed, a spliced wall is formed. Concrete can be poured into the space enclosed by the two opposite grooves through the perfusion hole 22 to form a watertight spliced wall. This kind of spliced wall is suitable for use as a foundation pit enclosure and an urban utility tunnel.

[0031] As Figures 6 to 8 shown, it is Embodiment 2 of the present utility model.

[0032] This embodiment is basically the same as Embodiment 1. The difference is that: the tenon 3 and the guiding convex block 21 of this embodiment are of a split structure. The tenon 3 includes a connecting plate 31, a bolt 32, a spring 33 and a gasket 34. The connecting plate 31 is installed on the outside of the guiding convex block 21 through the bolt 32. The width D3 of the connecting plate 31 is greater than the width D2 of the outside of the guiding convex block 21. The spring 33 is sleeved on the bolt 32. The two ends of the spring 33 are respectively abutted against the connecting plate 31 and the head 321 of the bolt 32. The two gaskets 34 are respectively arranged at the two ends of the spring 33. The spring 33 enables the connecting plate 31 to adapt to the error in the second groove 1b. The spring 33 enables the connecting plate 31 to move horizontally along the bolt 32. Furthermore, when the pile body 1 damages the protrusion 4 or the side wall in the second groove 1b during demoulding or transportation, the connecting plate 31 moves horizontally by means of the spring 33, so that the connecting plate 31 can still be adapted to the second groove 1b, thereby reducing the assembly error.

Claims

1. A concrete sheet pile with a mortise and tenon structure, comprising a pile body (1), the pile body (1) having two flanges (11) and a web (12) connecting the two flanges (11) to form an I-shaped cross-section. Two grooves extending along the length direction of the pile body (1) are formed on both sides of the pile body (1) by the two flanges (11) and the web (12), namely a first groove (1a) and a second groove (1b). A plurality of connecting blocks (2) are arranged at intervals up and down in the first groove (1a), and the front and rear side surfaces of the connecting blocks (2) are integrally formed with the corresponding inner walls of the first groove (1a). It is characterized in that: One end of the connecting block (2) is connected to the web (12), and the other end is exposed outside the first groove (1a) to form a guiding projection (21). A tenon (3) protruding laterally in the front-rear direction is provided on the guiding projection (21). The shape of the second groove (1b) is adapted to that of the tenon (3). Protrusions (4) are provided on the side wall of the second groove (1b) at intervals, and the protrusions (4) make part of the aperture of the second groove (1b) smaller to form a reduced-diameter portion (1c). The shape of the reduced-diameter portion (1c) is adapted to that of the guiding projection (21). The guiding projection (21) and the tenon (3) on the pile body (1) can be inserted into the second groove (1b) of an adjacent another pile body (1).

2. The concrete sheet pile according to claim 1, wherein: The cross section of the guiding projection (21) is trapezoidal with a smaller outer side and a larger inner side, and the cross section of the reduced-diameter portion (1c) is trapezoidal with a larger outer side and a smaller inner side.

3. The concrete sheet pile according to claim 2, wherein: The tenon (3) and the connecting block (2) are of an integral structure. The cross section of the tenon (3) is trapezoidal with a smaller outer side and a larger inner side, and the width (D1) inside the tenon (3) is greater than the width (D2) outside the guiding projection (21).

4. The concrete sheet pile according to claim 2, characterized in that: The tenon (3) includes a connecting plate (31) and a bolt (32). The connecting plate (31) is installed on the outside of the guiding projection (21) through the bolt (32), and the width (D3) of the connecting plate (31) is greater than the width (D2) outside the guiding projection (21).

5. The concrete sheet pile according to claim 4, characterized in that: A spring (33) is sleeved on the bolt (32), and the two ends of the spring (33) are respectively abutted against the connecting plate (31) and the head (321) of the bolt (32).

6. The concrete sheet pile according to claim 5, wherein: The tenon (3) further includes two gaskets (34), and the two gaskets (34) are respectively arranged at the two ends of the spring (33).

7. The concrete sheet pile according to claim 1, characterized in that: The top surface of the web (12) is lower than the top surfaces of the two flanges (11). The pile body (1) forms a slot (13) at the upper end. The bottom end of the web (12) extends out between the two flanges (11) to form an insertion portion (121), and the insertion portion (121) can be inserted into the slot (13) of the pile body (1) located below.

8. The concrete sheet pile according to claim 7, wherein: The top surface of the connecting block (2) at the uppermost end is flush with the top surface of the web (12).

9. The concrete sheet pile according to claim 1, characterized in that: A perfusion hole (22) penetrating up and down is provided on the connecting block (2).

10. A splicing wall, characterized in that: Including multiple concrete sheet piles as described in any one of claims 1 to 9, the pile bodies (1) are spliced together by inserting the guiding projection (21) and the tenon (3) into the second groove (1b) of an adjacent another pile body (1).

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