Waterproof structure of a water tower foundation and a construction method thereof

Abstract

The application discloses to the technical field of bridge construction, specifically to a kind of waterproof structure of wading tower crane foundation and its construction method, including two bridge piers, sealing assembly and waterproof docking assembly, the lower end of two bridge piers is equipped with bridge pier platform, tower crane foundation is equipped between two bridge pier platforms, the upper end of tower crane foundation is pre-buried with tower crane and fence pre-buried seat, the upper end of tower crane and fence pre-buried seat is assembled with water baffle, water baffle includes several water baffle steel formworks, the tower crane in water deep area can be surrounded by the steel formwork of bridge pier, the quality and safety problems caused by difficult control of welding quality are avoided by assembling structure and sealing assembly, then wall supporting steel supports water baffle steel formwork and bridge pier, improve the overall stiffness and stability of waterproof structure, reduce steel cost, material utilization rate is high, green environmental protection construction can be realized, in addition, waterproof docking assembly can improve the efficiency of assembly and the waterproof effect of cross joint.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to a waterproof structure for a water-borne tower crane foundation and its construction method. Background Technology

[0002] Tower cranes are commonly used hoisting equipment during the construction of the superstructure of bridges spanning rivers and streams. The foundations of tower cranes used for bridges are generally set on a platform below the normal water level. Since the construction cycle of tower cranes generally goes through at least 1 to 2 rainy seasons or flood seasons, the tower crane foundations, some standard sections, and bolts below the ground are prone to corrosion due to long-term immersion in water, which is not easy to detect and poses a significant safety hazard.

[0003] Traditional construction methods involve installing steel casings on the tower crane foundation for protection. For tower cranes located in deep water, multiple sections of steel casings are joined together and welded. However, controlling the verticality and welding quality is difficult, the weld quality requirements are high, construction is challenging, and there are high safety risks. In addition, a large amount of steel is required, resulting in high project costs, low material reuse rates, and is not conducive to green and environmentally friendly construction. Summary of the Invention

[0004] The purpose of this invention is to provide a waterproof structure for the foundation of a water-borne tower crane and its construction method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waterproof structure for a water-borne tower crane foundation, comprising:

[0006] Two bridge piers, with pier caps at the lower ends of the two bridge piers, and a tower crane foundation between the two pier caps. A tower crane and enclosure pre-embedded seat is embedded at the upper end of the tower crane foundation, and a water-blocking cylinder is assembled at the upper end of the tower crane and enclosure pre-embedded seat. The water-blocking cylinder includes several water-blocking steel templates.

[0007] A sealing assembly is provided on the mating side of two adjacent water-retaining steel templates, and the sealing assembly includes several sealing strips;

[0008] A waterproof joint assembly is provided at the cross joint of the water-retaining steel formwork. The waterproof joint assembly includes a joint combination plate, two joint sealing plates, and four assembly boxes.

[0009] Preferably, the water-retaining steel template is provided with vertical flange plates and horizontal flange plates on both sides and at the top and bottom ends, and four adjacent water-retaining steel templates are bolted together and fixed by the vertical flange plates and horizontal flange plates.

[0010] Preferably, the lower horizontal flange plate of the water-retaining steel formwork is bolted to the upper bolted embedded base of the tower crane and the enclosure, and the horizontal flange plate covering the upper part of the tower crane foundation and the embedded base of the tower crane and the enclosure are provided with encapsulating concrete.

[0011] Preferably, each of the vertical flange plates and the horizontal flange plates has an embedding groove on one side, and a plurality of sealing strips are respectively inserted into the plurality of embedding grooves.

[0012] Preferably, one side of the water-retaining steel formwork is provided with a support steel section by bolt connection, and the side of the bridge pier near the support steel section is provided with a support embedded part, and the end of the support steel section away from the water-retaining steel formwork is fixedly connected to the support embedded part.

[0013] Preferably, the water-retaining steel template is provided with several reinforcing ribs.

[0014] Preferably, several assembly boxes are respectively disposed on the four sides of the water-retaining steel template splicing. When the four water-retaining steel templates are assembled, the several assembly boxes will form two positioning and sealing boxes. A sealing groove is opened in the center of the positioning and sealing box. The mating combination plate is vertically inserted into the sealing groove. One side of each of the four assembly boxes is connected to the sealing groove and has a pull-out positioning groove. Four pull-out positioning blocks are symmetrically arranged on the four sides of the mating combination plate. The four pull-out positioning blocks are respectively inserted into the pull-out positioning grooves of the four assembly boxes, and the side of the pull-out positioning block inserted into the pull-out positioning groove is an inclined surface.

[0015] Preferably, the sealing groove has a through-groove groove on the inner side of the water-blocking cylinder formed by the water-blocking steel template. An adjusting seat is inserted through the center of the connecting plate. Two assembly bolts are inserted into both sides of the connecting plate. One side of each of the two assembly bolts is inserted into the two sides of the adjusting seat. Guide placement grooves are opened on both sides of the connecting plate at the adjusting seat. The two joint sealing plates are movably inserted into the two guide placement grooves. Combination grooves are opened on both sides of the adjusting seat. A threaded protrusion is provided at the center of one side of each joint sealing plate. The two threaded protrusions are movably inserted into the two grooves. A control screw is inserted through the center of the adjusting seat. A self-rotating constraint block is provided at the center of the adjusting seat at the center of the control screw. The two joint sealing plates are threadedly connected to the control screw through both sides of the adjusting seat via the threaded protrusions. One side of the control screw is provided through the through-groove groove.

[0016] Preferably, the side of the joint sealing plate away from the mating assembly plate is provided with a sealing sheet, the control screw is inserted into the two joint sealing plates with opposite threads, and the area of ​​the sealing sheet is larger than the cross-sectional area of ​​the unjoined position of several sealing strips.

[0017] A construction method for a waterproof structure for the foundation of a tower crane in water-related areas includes the following steps:

[0018] Step 1: When the tower crane foundation is being poured, with the tower crane as the center, embed the tower crane and enclosure pre-embedded seats in the tower crane foundation position, and at the same time, the pre-embedded bolts of the tower crane and enclosure pre-embedded seats should be embedded to a depth of not less than 30cm.

[0019] Step Two: Then, the water-retaining steel formwork is assembled with bolts using horizontal and vertical flange plates. During assembly, the sealing strip is filled into the mating position of adjacent water-retaining steel formwork. The water-retaining steel formwork is then bolted to the tower crane and the pre-embedded base of the enclosure. When assembling the upper and lower and left and right water-retaining steel formwork, the connecting combination plate can be hammered into the two adjacent assembly boxes to pull and position the two left and right assembled water-retaining steel formwork, which facilitates the subsequent bolt fixing of the vertical flange plate. When the upper water-retaining steel formwork is erected, the assembly box of the upper water-retaining steel formwork can be connected with the pull and positioning block of the connecting combination plate. When the upper water-retaining steel formwork descends with gravity, it promotes the rapid positioning of the two adjacent water-retaining steel formwork, which facilitates the bolt fixing connection of the two adjacent horizontal flange plates. Then, by rotating the control screw, the two joint sealing plates are pressed and sealed on both sides of the sealing groove. The number and height of the upper assembly are adjusted according to the water depth.

[0020] Step 3: After the water-retaining steel formwork is assembled, the support structure of the wall steel is erected to ensure the stability of the water-retaining cylinder after the water-retaining steel formwork is erected. Then, 20cm of sealing concrete is poured at the connection position between the water-retaining steel formwork, the tower crane, and the pre-embedded base of the enclosure, and then the tower crane can be erected later.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] For tower cranes located in deep water areas, this device can utilize the steel formwork left on the bridge piers to enclose the tower cranes. The modular structure and sealing components avoid quality and safety issues caused by uncontrollable welding quality. Then, the steel support structure supports the water-retaining steel formwork and the bridge piers, improving the overall rigidity and stability of the waterproof structure, reducing steel costs, and achieving a high material reuse rate, enabling green and environmentally friendly construction. In addition, the waterproof joint components can improve the assembly efficiency and the waterproof effect of the cross joints. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure for the embedded base of the tower crane and enclosure in this invention;

[0025] Figure 3 This is a schematic diagram of the assembly structure of the water-retaining steel formwork of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of part A;

[0027] Figure 5 This is a side sectional view of the internal structure of the insertion sealing groove of the docking combination plate of the present invention;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of part B;

[0029] Figure 7 This is a schematic diagram of the assembly structure of the assembly box of the present invention;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of part C;

[0031] Figure 9 This is a schematic diagram of the docking assembly plate structure of the present invention.

[0032] In the diagram: 1. Pier foundation; 2. Pier; 3. Tower crane foundation; 4. Tower crane and enclosure embedded seat; 5. Water-retaining steel formwork; 6. Horizontal flange plate; 7. Vertical flange plate; 8. Sealing strip; 9. Supporting steel; 10. Encapsulating concrete; 11. Assembly box; 12. Butt joint combination plate; 13. Tie rod positioning groove; 14. Tie rod positioning block; 15. Adjusting seat; 16. Assembly bolt; 17. Control screw; 18. Rotation constraint block; 19. Guide placement groove; 20. Joint sealing plate; 21. Threaded protrusion; 22. Through groove; 23. Sealing plate; 24. Reinforcing rib; 25. Sealing groove. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see the appendix Figure 1-9 This application provides the following technical solutions.

[0035] Example 1: A waterproof structure for a water-borne tower crane foundation, characterized by comprising:

[0036] Two bridge piers 2, with pier caps 1 at their lower ends. A tower crane foundation 3 is located between the two pier caps 1. A tower crane and enclosure pre-embedded seat 4 is embedded in the upper end of the tower crane and enclosure pre-embedded seat 4. A water-retaining cylinder is assembled in the upper end of the tower crane and enclosure pre-embedded seat 4. The water-retaining cylinder includes several water-retaining steel templates 5. Vertical flange plates 7 and horizontal flange plates 6 are respectively provided on both sides and at the top and bottom ends of the water-retaining steel templates 5. Four adjacent water-retaining steel templates 5 are bolted together and fixed by the vertical flange plates 7 and the horizontal flange plates 6. The lower part of the water-retaining steel template 5... The horizontal flange plate 6 is bolted to the upper end of the tower crane and enclosure embedded seat 4. The horizontal flange plate 6 and the tower crane and enclosure embedded seat 4 covered by the upper end of the tower crane foundation 3 are provided with encapsulating concrete 10. Several reinforcing ribs 24 are provided on the water-retaining steel formwork 5. The tower crane and enclosure embedded seat 4 is used for the later tower crane construction and the assembly and positioning of the water-retaining steel formwork 5. The reinforcing ribs 24 can improve the support strength of the water-retaining steel formwork 5. In addition, the water-retaining steel formwork 5 can be the steel formwork used by the bridge pier 2 after it is used up, so as to achieve the effects of cost reduction and green environmental protection.

[0037] The sealing assembly is located on the mating side of two adjacent water-retaining steel templates 5. The sealing assembly includes several sealing strips 8, several vertical flange plates 7, and several horizontal flange plates 6. Each side of the sealing strips 8 is provided with an embedding groove. The sealing strips 8 are inserted into the embedding grooves respectively to seal the joints when the several water-retaining steel templates 5 are assembled.

[0038] One side of the water-retaining steel formwork 5 is equipped with a support steel 9 connected by bolts. The side of the pier 2 closest to the support steel 9 is equipped with a support embedded part. The end of the support steel 9 away from the water-retaining steel formwork 5 is fixedly connected to the support embedded part. The support embedded part is pre-embedded on the pier 2. After the water-retaining cylinder built by the water-retaining steel formwork 5 is assembled, it is laterally supported. The pier 2 is used as the support point to ensure that the water-retaining cylinder composed of the water-retaining steel formwork 5 is stable and reliable.

[0039] Example 2: Based on Example 1, a waterproof joint assembly is provided. This assembly is located at the cross joint of the water-retaining steel formwork 5. The waterproof joint assembly includes a joint plate 12, two joint sealing plates 20, and four assembly boxes 11. Several assembly boxes 11 are respectively located on the four sides of the water-retaining steel formwork 5 joint. When the four water-retaining steel formwork 5 are assembled, the assembly boxes 11 form two positioning sealing boxes. A sealing groove 25 is provided in the center of each positioning sealing box. The joint plate 12 is vertically inserted into the sealing groove 25. The four assembly boxes... One side of the box 11 is connected to the sealing groove 25 and has a pull-out positioning groove 13. The four sides of the docking combination plate 12 are symmetrically provided with four pull-out positioning blocks 14. The four pull-out positioning blocks 14 are respectively inserted into the pull-out positioning grooves 13 of the four assembly boxes 11. The side of the pull-out positioning block 14 inserted into the pull-out positioning groove 13 is an inclined surface. When the docking combination plate 12 is connected to the positioning sealing box composed of the water-blocking steel template 5, the two adjacent water-blocking steel templates 5 can be aligned and pulled through the inclined surface, while ensuring the stable assembly of the water-blocking steel template 5.

[0040] A through-groove 22 is provided inside the water-blocking cylinder composed of water-blocking steel template 5 within the sealing groove 25. An adjusting seat 15 is inserted through the center of the connecting plate 12. Two assembly bolts 16 are inserted into both sides of the connecting plate 12, and one side of each assembly bolt 16 is inserted into the two sides of the adjusting seat 15. Guide placement grooves 19 are provided on both sides of the connecting plate 12 located at the adjusting seat 15. Two joint sealing plates 20 are movably inserted into the two guide placement grooves 19. Combining grooves are provided on both sides of the adjusting seat 15. A threaded protrusion 21 is provided at the center of one side of each joint sealing plate 20, and the two threaded protrusions 21 are movably inserted into the two grooves. A control screw 17 is inserted through the center of the adjusting seat 15. The control screw 17 is located at the center of the adjusting seat 15. A self-rotating constraint block 18 is provided in the center of the section seat 15. Two joint sealing plates 20 are respectively connected to the control screw 17 through the threaded sleeve of the screw protrusion 21 on both sides of the adjusting seat 15. One side of the control screw 17 is set through the groove 22. The side of the joint sealing plate 20 away from the docking combination plate 12 is provided with a sealing plate 23. The control screw 17 is inserted into the two joint sealing plates 20 with opposite threads. The area of ​​the sealing plate 23 is larger than the cross-sectional area of ​​the unjoined position of several sealing strips 8. When the joint sealing plate 20 pushes the sealing plate 23 to abut against the inner wall of the sealing groove 25, it covers the cross joint area formed by the water-blocking steel template 5, so as to avoid the waterproof effect when the sealing strip 8 cannot completely fill the cross joint during the assembly of the water-blocking steel template 5.

[0041] A construction method for a waterproof structure for the foundation of a tower crane in water-related areas includes the following steps:

[0042] Step 1: When the tower crane foundation is being poured, with the tower crane as the center, the tower crane and enclosure pre-embedded seat 4 is pre-embedded in the tower crane foundation 3, and the pre-embedded bolts of the tower crane and enclosure pre-embedded seat 4 are pre-embedded to a depth of not less than 30cm.

[0043] Step Two: Then, the water-retaining steel formwork 5 is assembled with bolts using the horizontal flange plate 6 and the vertical flange plate 7. During assembly, the sealing strip 8 is filled into the contact position of adjacent water-retaining steel formwork 5. Then, the water-retaining steel formwork 5 is bolted to the tower crane and the pre-embedded base 4 of the enclosure. When assembling the upper and lower and left and right water-retaining steel formwork 5, the mating combination plate 12 can be hammered into the two adjacent assembly boxes 11 to pull and position the two left and right assembled water-retaining steel formwork 5s, which facilitates the subsequent bolting of the vertical flange plate 7. When erecting the upper water-retaining steel formwork 5, the assembly box 11 of the upper water-retaining steel formwork 5 can be connected to... The tie positioning blocks 14 of the docking combination plate 12 are docked. When the upper water-blocking steel template 5 falls with gravity, it causes the two adjacent water-blocking steel templates 5 to be quickly positioned, which facilitates the bolt fixing connection of the two adjacent horizontal flange plates 6. Then, by rotating the control screw 17, the two joint sealing plates 20 press and seal the two sides of the sealing groove 25 respectively, covering the cross joint area formed by the water-blocking steel template 5, so as to avoid the waterproof effect when the sealing strip 8 cannot completely fill the cross joint during the assembly of the water-blocking steel template 5. The number and height of the assembly are adjusted according to the water depth.

[0044] Step 3: After the water-retaining steel formwork 5 is assembled, the support structure 9 of the wall-supporting steel is erected to ensure the stability of the water-retaining cylinder after the water-retaining steel formwork 5 is erected. Then, 20cm of sealing concrete 10 is poured at the connection position between the water-retaining steel formwork 5 and the tower crane and the pre-embedded seat 4 of the enclosure, and then the tower crane can be erected later.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure of a water crossing tower foundation, characterized by, include: Two bridge piers (2), the lower end of the two bridge piers (2) is provided with a bridge pier cap (1), a tower crane foundation (3) is provided between the two bridge pier caps (1), a tower crane and enclosure embedded seat (4) is pre-embedded at the upper end of the tower crane foundation (3), a water-blocking cylinder is assembled at the upper end of the tower crane and enclosure embedded seat (4), and the water-blocking cylinder includes several water-blocking steel templates (5). A sealing assembly is provided on the mating side of two adjacent water-blocking steel templates (5), and the sealing assembly includes several sealing strips (8). Waterproof joint assembly, the waterproof joint assembly is located at the cross joint of the water-retaining steel template (5), the waterproof joint assembly includes a joint combination plate (12), two joint sealing plates (20) and four assembly boxes (11). The water-retaining steel template (5) is provided with vertical flange plates (7) and horizontal flange plates (6) on both sides and at the top and bottom ends respectively. The four adjacent water-retaining steel templates (5) are bolted together and fixed by the vertical flange plates (7) and the horizontal flange plates (6). Several vertical flange plates (7) and horizontal flange plates (6) are provided with embedding grooves on opposite sides, and several sealing strips (8) are respectively inserted into several embedding grooves; Several assembly boxes (11) are respectively set on the four sides of the splicing of the water-blocking steel template (5). When the four water-blocking steel templates (5) are assembled, several assembly boxes (11) will form two positioning and sealing boxes. A sealing groove (25) is opened in the center of the positioning and sealing box. The docking combination plate (12) is vertically inserted into the sealing groove (25). One side of each of the four assembly boxes (11) is connected to the sealing groove (25) and a pull-out positioning groove (13) is opened. Four pull-out positioning blocks (14) are symmetrically arranged on the four sides of the docking combination plate (12). The four pull-out positioning blocks (14) are respectively inserted into the pull-out positioning groove (13) of the four assembly boxes (11), and the side of the pull-out positioning block (14) inserted into the pull-out positioning groove (13) is an inclined surface. The sealing groove (25) has a through groove (22) on the inner side of the water-blocking cylinder formed by the water-blocking steel template (5). An adjusting seat (15) is inserted through the center of the connecting plate (12). Two assembly bolts (16) are inserted on both sides of the connecting plate (12). One side of the two assembly bolts (16) is inserted into the two sides of the adjusting seat (15). The connecting plate (12) has guide placement grooves (19) on both sides of the adjusting seat (15). The two joint sealing plates (20) are movably inserted into the two guide placement grooves (19). Both sides of the joint sealing plate (20) are provided with combined grooves. The center of one side of the joint sealing plate (20) is provided with a screw-in protrusion (21). The two screw-in protrusions (21) are respectively movably inserted into the two grooves. The center of the adjusting seat (15) is provided with a control screw (17). The center of the control screw (17) is located inside the adjusting seat (15) and is provided with a self-rotating constraint block (18). The two joint sealing plates (20) are respectively threaded through the screw-in protrusions (21) to connect the control screw (17) through both sides of the adjusting seat (15), and one side of the control screw (17) is provided through the groove (22).

2. The water-proof structure of a tower crane foundation according to claim 1, wherein: The lower horizontal flange plate (6) of the water-retaining steel template (5) is bolted to the upper bolt of the tower crane and enclosure embedded seat (4). The upper horizontal flange plate (6) covering the tower crane foundation (3) and the tower crane and enclosure embedded seat (4) are provided with encapsulating concrete (10).

3. The water-proof structure of a tower crane foundation according to claim 2, wherein: One side of the water-retaining steel formwork (5) is provided with a wall-supporting steel (9) by bolt connection. The side of the pier (2) near the wall-supporting steel (9) is provided with a support embedded part. The end of the wall-supporting steel (9) away from the water-retaining steel formwork (5) is fixedly connected to the support embedded part.

4. The water-proof structure of a tower crane foundation according to claim 3, wherein: The water-retaining steel template (5) is provided with several reinforcing ribs (24).

5. The water-proof structure of a tower crane foundation according to claim 4, wherein: Each of the joint sealing plates (20) is provided with a sealing sheet (23) on the side away from the docking assembly plate (12). The control screw (17) is inserted into the two joint sealing plates (20) with opposite threads, and the area of ​​the sealing sheet (23) is larger than the cross-sectional area of ​​the unjoined position of several sealing strips (8).

6. A construction method for the water-proof structure of the water-treading tower foundation as claimed in claim 5, characterized in that, Includes the following steps: Step 1: When the tower crane foundation is being poured, with the tower crane as the center, the tower crane and enclosure pre-embedded seat (4) is pre-embedded in the tower crane foundation (3) position, and the pre-embedded bolt of the tower crane and enclosure pre-embedded seat (4) is pre-embedded to a depth of not less than 30cm; Step 2: Then, the water-retaining steel template (5) is assembled with bolts using the horizontal flange plate (6) and the vertical flange plate (7). During assembly, the sealing strip (8) is filled into the mating position of the adjacent water-retaining steel template (5). Then, the water-retaining steel template (5) is bolted to the tower crane and the pre-embedded seat (4) of the enclosure. When assembling the water-retaining steel template (5) on the top and bottom and left and right sides, the docking combination plate (12) can be hammered into the two adjacent assembly boxes (11) to pull and position the two left and right assembled water-retaining steel templates (5) to facilitate the subsequent bolting of the vertical flange plate (7). When the upper water-blocking steel template (5) is erected, the assembly box (11) of the upper water-blocking steel template (5) can be connected with the tie positioning block (14) of the docking combination plate (12). When the upper water-blocking steel template (5) descends with gravity, it will cause the two adjacent water-blocking steel templates (5) to be quickly positioned, which will facilitate the bolt fixing connection of the two adjacent horizontal flange plates (6). Then, by rotating the control screw (17), the two joint sealing plates (20) will press and seal the two sides of the sealing groove (25) respectively. The number and height of the assembly will be adjusted according to the water depth. Step 3: After the water-retaining steel formwork (5) is assembled, the support structure (9) of the wall-mounted steel is erected to ensure the stability of the water-retaining cylinder after the water-retaining steel formwork (5) is erected. Then, 20cm of encasing concrete (10) is poured at the connection position between the water-retaining steel formwork (5) and the tower crane and the pre-embedded seat (4) of the enclosure, and wait for the subsequent tower crane to be erected.

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