Water conservancy construction cofferdam device

Abstract

The utility model discloses a water conservancy construction cofferdam device, including steel sheet pile unit, set up in the steel sheet pile unit inside's support frame mechanism, the steel sheet pile unit is by a plurality of U type steel sheet pile splicing constitutes, a plurality of the splicing of U type steel sheet pile bottom all is provided with the scraping mechanism, the scraping mechanism is by the locating seat, the locating cover, the scraping piece is composed, the utility model discloses in the scraping mechanism, can in the synchronous advancing process of U type steel sheet pile lock splicing, automatic scraping the riverbed silt, the impurity such as stake body rust scrap of lock mouth department, replace the incompleteness of manual cleaning, avoid the impurity to jam into the lock joint, directly solved the problem of lock mouth occlusion, promoted the water stop of cofferdam and prevented the seepage reliability, simultaneously, the mechanism can reduce the splicing resistance, make stake body advancing more smooth, guarantee the assembly precision of U type steel sheet pile, avoid stake body skew, save construction time.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering construction technology, and specifically relates to a water conservancy construction cofferdam device. Background Technology

[0002] Cofferdams are core temporary water-retaining facilities in water conservancy and cross-water projects. They are used to isolate local water bodies in a water area, creating a dry working space for underwater foundation construction. They are usually made of materials such as steel sheet piles, soil, rock, and concrete, and are enclosed and spliced ​​to form a closed structure. They are equipped with support and seepage prevention components to enhance stability and water-stopping effect. A common example is the steel sheet pile cofferdam, which is enclosed by interlocking joints. It is suitable for deep water and complex geological conditions, and can be quickly assembled and dismantled. It not only ensures the safety of underwater construction, but also reduces the temporary impact on the aquatic environment. It is a key supporting device for the foundation construction of cross-water projects.

[0003] In existing methods for splicing U-shaped steel sheet piles in water conservancy construction, multiple U-shaped steel sheet piles are spliced ​​together by interlocking. However, the splicing points are prone to getting caught in riverbed silt, pile rust, and other impurities. Manual cleaning is difficult to complete completely. When splicing is being advanced, impurities can get stuck in the interlocking gaps, resulting in poor interlocking and increased splicing resistance, leading to insufficient assembly accuracy. To address this issue, this utility model proposes a cofferdam device for water conservancy construction. Utility Model Content

[0004] The purpose of this utility model is to provide a cofferdam device for water conservancy construction, so as to solve the problem that when the U-shaped steel sheet piles of the water conservancy construction cofferdam device mentioned in the background art are locked and spliced, impurities are easily accumulated at the locking and splicing joint, resulting in poor splicing and large resistance during splicing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cofferdam device for hydraulic construction, comprising a sheet pile unit and a support mechanism disposed inside the sheet pile unit. The sheet pile unit is composed of multiple U-shaped sheet piles spliced ​​together. A scraping mechanism is provided at the bottom end of the splice of the multiple U-shaped sheet piles. The scraping mechanism consists of a positioning seat, a positioning sleeve, and a scraping component. The positioning seat is fixed to the bottom end of one side of the U-shaped sheet pile, the scraping component is disposed at the bottom end of the other side of the U-shaped sheet pile, and the positioning sleeve is disposed on the surface of the scraping component, with the bottom end of the positioning seat inserted into the inner side of the positioning sleeve.

[0006] Preferably, the bottom edge of the positioning seat has an inclined structure, and the outer diameter of the positioning seat is adapted to the inner diameter of the positioning sleeve.

[0007] Preferably, the scraping component consists of a silicone sleeve and a base, with the silicone sleeve fitted onto the surface of the base and the bottom end of the positioning sleeve fixed to the top end of the base.

[0008] Preferably, a limiting component is provided at the contact point between the side of the scraper and the other side of the U-shaped steel sheet pile. The limiting component consists of a slider and a groove. The groove is formed on the outer surface of the silicone sleeve. The slider is fixed to the other side of the U-shaped steel sheet pile. The slider and the groove are in an engaged state.

[0009] Preferably, the steel sheet pile unit is provided with a symmetrical support mechanism inside. The symmetrically arranged support mechanism consists of a frame and multiple diagonal braces. The frame is fixedly installed to the inside of the steel sheet pile unit, and the multiple diagonal braces are installed on the inside of the frame.

[0010] Preferably, the outer surface of the silicone sheath is adapted to the dimensions of the other side of the U-shaped steel sheet pile.

[0011] Preferably, the scraping element has a polygonal structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The scraping mechanism in this invention can automatically scrape away riverbed silt, pile rust, and other impurities at the interlocking joint during the synchronous advancement of the U-shaped steel sheet pile interlocking and splicing process. This replaces the incompleteness of manual cleaning, prevents impurities from getting stuck in the interlocking joint, directly solves the problem of poor interlocking, and improves the reliability of the cofferdam in preventing water seepage. At the same time, this mechanism can reduce splicing resistance, make the pile advancement smoother, ensure the assembly accuracy of the U-shaped steel sheet pile, prevent the pile from tilting, and save construction time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the cofferdam device of this utility model; Figure 3 This utility model Figure 2 Enlarged schematic diagram of region A in the diagram; Figure 4 This is a schematic diagram of the installation of the U-shaped steel sheet pile of this utility model; Figure 5 This utility model Figure 4 Enlarged schematic diagram of region B in the diagram; Figure 6 This is a schematic diagram of the positioning seat and positioning sleeve of this utility model. Figure 7 This is a cross-sectional schematic diagram of the scraping component of this utility model; In the diagram: 1. Sheet pile unit; 10. U-shaped sheet pile; 101. Slider; 102. Slide groove; 11. Scraping mechanism; 111. Positioning seat; 112. Positioning sleeve; 113. Scraping component; 1131. Silicone sleeve; 1132. Base; 2. Support mechanism; 21. Frame; 22. Diagonal brace. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1 to 7This utility model provides a technical solution: a cofferdam device for hydraulic construction, including a sheet pile unit 1 and a support mechanism 2 installed inside the sheet pile unit 1. The sheet pile unit 1 is composed of multiple U-shaped sheet piles 10 spliced ​​together. The sheet pile unit 1, composed of multiple U-shaped sheet piles 10 spliced ​​together, is the main structure of the cofferdam, forming a closed cavity to isolate external water and create a dry working space for underwater construction. The U-shaped sheet piles 10 are the basic components of the cofferdam. The U-shaped structure has inherent rigidity and forms a continuous water-retaining wall through interlocking splicing. The interlocking of the piles achieves a tight connection between the piles, ensuring the sealing of the enclosure. A scraping mechanism 11 is provided at the bottom of the splicing points of multiple U-shaped sheet piles 10. The scraping mechanism 11 consists of a positioning seat 111, a positioning sleeve 112, and a scraping component 1. The system comprises 13 components: a positioning seat 111 fixed to one bottom side of the U-shaped steel sheet pile 10; a scraper 113 positioned on the other bottom side of the U-shaped steel sheet pile 10; and a positioning sleeve 112 positioned on the surface of the scraper 113, with the bottom end of the positioning seat 111 engaging the inner side of the positioning sleeve 112. In this invention, the scraping mechanism 11 automatically scrapes away riverbed silt, pile rust, and other impurities at the locking joint during the synchronous advancement of the U-shaped steel sheet pile 10 during locking and splicing. This replaces the incompleteness of manual cleaning, prevents impurities from getting stuck in the locking joint, directly solves the problem of incomplete locking, and improves the reliability of the cofferdam's water-stopping and seepage-proofing. Simultaneously, this mechanism reduces splicing resistance, making the pile advancement smoother, ensuring the assembly accuracy of the U-shaped steel sheet pile 10, preventing pile tilting, and saving construction time. The bottom edge of the positioning seat 111 is inclined. The outer diameter of the positioning seat 111 matches the inner diameter of the positioning sleeve 112. The scraper 113 consists of a silicone sleeve 1131 and a base 1132. The silicone sleeve 1131 is fitted onto the surface of the base 1132. The bottom end of the positioning sleeve 112 is fixed to the top end of the base 1132. The scraper 113 is the core cleaning component. When the U-shaped steel sheet pile 10 is spliced ​​and advanced, it directly contacts the surface of the lock joint to scrape away impurities such as mud, sand, and rust, preventing them from getting stuck in the lock joint. The base 1132 provides structural support for the scraper 113, enhancing its rigidity when scraping impurities and preventing the scraper from deforming or failing under stress. A limit component is provided at the point where the side of the scraper 113 fits against the other side of the U-shaped steel sheet pile 10. The limiting component consists of a slider 101 and a groove 102. The groove 102 is formed on the outer surface of the silicone sleeve 1131. The slider 101 is fixed to the other side of the U-shaped steel sheet pile 10. The slider 101 and the groove 102 are in a snap-fit ​​state. The steel sheet pile unit 1 is symmetrically equipped with a support mechanism 2. The symmetrically equipped support mechanism 2 consists of a frame 21 and multiple diagonal braces 22. The frame 21 is fixedly installed on the inner side of the steel sheet pile unit 1. The multiple diagonal braces 22 are installed on the inner side of the frame 21. The support mechanism 2 resists external water and soil pressure and avoids cofferdam deformation. The frame 21 is the main support body. The diagonal braces 22 distribute the pressure and improve the support stability. The outer surface of the silicone sleeve 1131 is adapted to the size of the other side of the U-shaped steel sheet pile 10. The scraper 113 has a polygonal structure.

[0016] The working principle and usage process of this utility model are as follows: In water conservancy construction, when installing a cofferdam device, first locate the cofferdam construction area, lift the first U-shaped steel sheet pile 10 and lower it along the guide frame, then pre-install the scraping mechanism 11 on the locking side of the U-shaped steel sheet pile 10, and insert the scraping part 113, which makes up the scraping mechanism 11, into one side of the U-shaped steel sheet pile 10. The two are positioned by the slider 101 and the groove 102 to ensure that the scraping part 113 fits the locking surface. Then, when splicing the next U-shaped steel sheet pile 10, the next U-shaped steel sheet pile 10... On the other side of the bottom positioning seat 111, the positioning sleeve 112 is inserted into the inner side of the positioning seat 112. By pushing another U-shaped steel sheet pile 10, the scraper 113 scrapes away the mud, sand and rust at the joint of the first U-shaped steel sheet pile 10 on one side. The splicing steps are repeated, and multiple U-shaped steel sheet piles 10 are enclosed to form a closed steel sheet pile unit 1. Then, the frame 21 and diagonal brace 22 of the support mechanism 2 are installed in the cavity of the steel sheet pile unit 1 for support and limitation. After the cofferdam device is assembled, the sealing of the joint is checked, the water in the cavity is pumped out, and the underwater foundation construction stage begins.

[0017] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cofferdam device for hydraulic construction, comprising a sheet pile unit (1) and a support mechanism (2) disposed inside the sheet pile unit (1), characterized in that: The sheet pile unit (1) is composed of multiple U-shaped sheet piles (10) spliced ​​together. Each of the splicing points of the multiple U-shaped sheet piles (10) is provided with a scraping mechanism (11). The scraping mechanism (11) consists of a positioning seat (111), a positioning sleeve (112), and a scraping component (113). The positioning seat (111) is fixed to one side of the bottom of the U-shaped sheet pile (10). The scraping component (113) is located on the other side of the bottom of the U-shaped sheet pile (10). The positioning sleeve (112) is located on the surface of the scraping component (113), and the bottom of the positioning seat (111) is inserted into the inside of the positioning sleeve (112).

2. The cofferdam device for hydraulic construction according to claim 1, characterized in that: The bottom edge of the positioning seat (111) is inclined, and the outer diameter of the positioning seat (111) is adapted to the inner diameter of the positioning sleeve (112).

3. A cofferdam device for hydraulic construction according to claim 1, characterized in that: The scraper (113) consists of a silicone sleeve (1131) and a base (1132). The silicone sleeve (1131) is fitted onto the surface of the base (1132), and the bottom end of the positioning sleeve (112) is fixed to the top end of the base (1132).

4. A cofferdam device for hydraulic construction according to claim 1, characterized in that: A limiting component is provided at the junction of the side of the scraper (113) and the other side of the U-shaped steel sheet pile (10). The limiting component consists of a slider (101) and a groove (102). The groove (102) is opened on the outer surface of the silicone sleeve (1131). The slider (101) is fixed to the other side of the U-shaped steel sheet pile (10). The slider (101) and the groove (102) are in a locked state.

5. A cofferdam device for hydraulic construction according to claim 1, characterized in that: The sheet pile unit (1) is symmetrically provided with a support mechanism (2). The symmetrically provided support mechanism (2) consists of a frame (21) and multiple diagonal braces (22). The frame (21) is fixedly installed on the inner side of the sheet pile unit (1), and the multiple diagonal braces (22) are installed on the inner side of the frame (21).

6. A cofferdam device for hydraulic construction according to claim 3, characterized in that: The outer surface of the silicone sheath (1131) is adapted to the dimensions of the other side of the U-shaped steel sheet pile (10).

7. A cofferdam device for hydraulic construction according to claim 1, characterized in that: The scraping component (113) has a polygonal structure.

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