Double-row steel sheet pile cofferdam flow guiding and intercepting structure

Abstract

The utility model relates to the technical field of water conservancy projects, in particular to a double-row steel sheet pile cofferdam flow guiding and intercepting structure which comprises steel pipe piles, a supporting mechanism is arranged on the upper sides of the steel pipe piles, and the supporting mechanism comprises a connecting block, a first inserting groove, a supporting column, a second inserting groove and a clamping plate. The supporting column is fixedly connected with the upper end of the connecting block, the first inserting grooves are formed in the left side and the right side of the connecting block, the second inserting grooves are formed in the left side and the right side of the supporting column, the second steel sheet piles are arranged between the multiple sets of steel pipe piles on the front side and between the multiple sets of steel pipe piles on the rear side, and the first steel sheet piles are arranged between the front and rear sets of steel pipe piles at the leftmost end and the rightmost end. The supporting mechanisms are sequentially inserted into the foundation, then the steel sheet piles are sequentially inserted between the two supporting mechanisms, and the supporting mechanisms support the two ends of the steel sheet piles, so that the stability of the steel sheet piles is improved, the structural strength of the flow guide bin and the closure bin is improved, and rapid enclosure of the flow guide bin and the closure bin is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a double-row steel sheet pile cofferdam diversion and interception structure. Background Art

[0002] Double-row steel sheet pile cofferdam refers to a temporary retaining structure built for the construction of permanent water conservancy facilities during water conservancy project construction.

[0003] Among them, announcement number CN113417303B discloses a method for constructing a comb-toothed groove diversion and interception of a coastal double-row steel sheet pile cofferdam, wherein diversion chambers are arranged on both sides of the closure chamber, the diversion chamber includes two transverse partition pile walls, a diversion pile wall and a interception pile wall are arranged between the two transverse partition pile walls, a diversion structure is arranged on the diversion pile wall, the diversion structure includes a first stopper and a fixed box arranged on the side of the diversion pile wall away from the interception pile wall, the fixed box is located directly below the first stopper, the density of the fixed box is greater than the density of water, the fixed box slides in a vertical direction on the diversion pile wall, a fixed groove is provided above the fixed box, a fixed hole is provided in the fixed groove facing the inner wall of the diversion pile wall, a water inlet hole is provided on the side of the diversion pile wall facing the fixed box, and the fixed box can connect / stagger the fixed hole with the water inlet hole by moving in the vertical direction. This application has the effect of reducing the risk and difficulty of cofferdam closure construction.

[0004] During use, the device directly drives steel sheet piles into the soil to enclose the diversion chamber and the closure chamber. However, due to the large surface area of ​​the steel sheet piles, they are subject to greater pressure from the water flow, and the riverbed bottom is eroded by the river for a long time, the soil is relatively loose, which causes the steel sheet piles to easily fall over during the installation process, thereby affecting the enclosure of the diversion chamber and the closure chamber, resulting in low construction efficiency.

[0005] Therefore, it is necessary to invent a double-row steel sheet pile cofferdam diversion and interception structure to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a double-row steel sheet pile cofferdam diversion and interception structure to solve the problem in the technology that the surface area of ​​the steel sheet piles is large, which in turn is subjected to large pressure from the water flow, and the bottom of the river channel is subjected to river erosion for a long time, and the soil is relatively loose, which makes the steel sheet piles easy to tip over during the installation process, thereby affecting the enclosure of the diversion bin and the closure bin, resulting in low construction efficiency.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-row steel sheet pile cofferdam diversion and interception structure, comprising steel pipe piles, a supporting mechanism is provided on the upper side of the steel pipe piles, the supporting mechanism comprises a connecting block, a first plug-in slot, a supporting column, a second plug-in slot and a clamping plate, the connecting block is fixedly connected to the upper end of the steel pipe pile, the supporting column is fixedly connected to the upper end of the connecting block, the first plug-in slot is opened on the left and right sides of the connecting block, the second plug-in slot is opened on the left and right sides of the supporting column, second steel sheet piles are provided between the front multiple groups of steel pipe piles and between the rear multiple groups of steel pipe piles, and first steel sheet piles are provided between the front and rear two groups of steel pipe piles at the leftmost and rightmost ends.

[0008] By adopting the above technical solution, the steel pipe piles, connecting blocks and support columns are connected in sequence, and then the supporting mechanisms are inserted into the foundation in sequence. Then, the second steel sheet piles are inserted between the two groups of supporting mechanisms. The first steel sheet piles are inserted on the left and right sides of the supporting mechanisms to complete the enclosure of the diversion chamber and the closure chamber, thereby improving the structural strength of the diversion chamber and the closure chamber and improving the installation efficiency.

[0009] Optionally, four groups of connecting screw rods are fixedly connected to the side surface of the steel pipe pile near the upper end, nuts are threadedly connected to the surface of the connecting screw rods, and four groups of plug holes are opened at the upper end of the steel pipe pile.

[0010] Optionally, four groups of connecting plates are fixedly connected to the side surface of the connecting block near the lower end, and the lower end of the connecting plate is provided with a connecting groove, which is clamped on the outer side of the connecting screw rod.

[0011] Optionally, four groups of plug-in rods are fixedly connected to the lower end of the connecting block, and the plug-in rods are plugged into the inside of the plug-in holes.

[0012] By adopting the above technical solution, the connecting block is placed on the upper side of the steel pipe pile, the plug rod is inserted into the inside of the plug hole, and the connecting groove is clamped on the outside of the connecting screw rod, and it is locked with a nut, thereby locking the connecting block and the steel pipe pile.

[0013] Optionally, four sets of fixed screw rods are fixedly connected to the upper end of the connecting block, and nuts are threadedly connected to the surfaces of the fixed screw rods.

[0014] Optionally, the bottom end of the support column is fixedly connected to a fixing plate, a side support plate is fixedly connected between the side of the support column and the fixing plate, four groups of through holes are opened on the surface of the fixing plate, and the fixing screw is inserted into the inside of the through holes.

[0015] By adopting the above technical solution, the support column is placed on the upper side of the connecting block, the fixing screw is inserted into the inside of the through hole, and then it is locked and fixed with a nut to lock and fix the steel pipe pile, connecting block and support column.

[0016] Optionally, a plurality of groups of clamping plates are fixedly connected to the side surfaces of the support column at positions on both sides of the second plug-in slot, and a first connection hole is provided on the surface of the clamping plate.

[0017] Optionally, both ends of the first steel sheet pile and the second steel sheet pile are inserted into the first insertion groove and the second insertion groove, and both ends of the first steel sheet pile and the second steel sheet pile are provided with second connecting holes.

[0018] By adopting the above technical solution, the first steel sheet pile and the second steel sheet pile are respectively inserted into the corresponding insertion grooves, and then the steel sheet piles and the support columns are locked and fixed by using fixing bolts passing through the first connecting holes and the second connecting holes.

[0019] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0020] 1. The utility model first inserts the support mechanism into the foundation, then inserts the second steel sheet pile between the two groups of support mechanisms, and then inserts the first steel sheet pile on the left and right sides of the support mechanism to complete the enclosure of the diversion chamber and the closure chamber. The support mechanism supports both ends of the steel sheet pile, thereby improving the stability of the steel sheet pile during installation, improving the structural strength of the diversion chamber and the closure chamber, and at the same time installing the steel sheet pile in place at one time, thereby improving installation efficiency. This solves the problem that the surface area of ​​the steel sheet pile is large, which is subject to greater pressure from the water flow, and the soil at the bottom of the river channel is relatively loose due to long-term erosion by the river, which makes the steel sheet pile easy to fall over during installation, thereby affecting the enclosure of the diversion chamber and the closure chamber, resulting in low construction efficiency.

[0021] 2. The utility model disassembles the support mechanism into steel pipe piles, connecting blocks and support columns, and connects them through connecting screws and fixing screws in combination with nuts, so as to facilitate the disassembly and transportation of the support mechanism and improve the convenience of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the steel sheet pile structure of the present utility model;

[0024] Figure 3 This is a schematic diagram of the support mechanism structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the support column structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the connection block structure of the utility model;

[0027] Figure 6This is a schematic diagram of the steel pipe pile structure of the present utility model.

[0028] Description of reference numerals:

[0029] 1. Steel pipe pile; 11. Connecting screw; 12. Plug-in hole; 2. Connecting block; 21. First plug-in slot; 22. Fixed screw; 23. Connecting plate; 24. Connecting slot; 25. Plug-in rod; 3. Support column; 31. Fixed plate; 32. Side support plate; 33. Second plug-in slot; 34. Clamp; 4. First steel sheet pile; 41. Second steel sheet pile. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The utility model provides Figures 1 to 3 The double-row steel sheet pile cofferdam diversion and interception structure shown in the figure includes a steel pipe pile 1. A support mechanism is provided on the upper side of the steel pipe pile 1. The support mechanism includes a connecting block 2, a first plug-in slot 21, a support column 3, a second plug-in slot 33 and a clamping plate 34. The connecting block 2 is fixedly connected to the upper end of the steel pipe pile 1, and the support column 3 is fixedly connected to the upper end of the connecting block 2. The first plug-in slot 21 is opened on the left and right sides of the connecting block 2, and the second plug-in slot 33 is opened on the left and right sides of the support column 3. The front multiple groups of steel pipe piles 1 are connected to the rear multiple groups of steel pipe piles 1. A second steel sheet pile 41 is provided between each group of steel pipe piles 1, and a first steel sheet pile 4 is provided between the two groups of steel pipe piles 1 at the leftmost and rightmost ends. The side surfaces of the support column 3 are located at the front and rear sides of the second plug-in slot 33, and multiple groups of plywood 34 are fixedly connected thereto. A first connecting hole is provided on the surface of the plywood 34, and both ends of the first steel sheet pile 4 and the second steel sheet pile 41 are plugged into the inside of the first plug-in slot 21 and the second plug-in slot 33, and both ends of the first steel sheet pile 4 and the second steel sheet pile 41 are provided with a second connecting hole.

[0032] Among them, during use, the steel pipe pile 1, the connecting block 2 and the support column 3 are first fixed in sequence to complete the installation of the support mechanism, and then the support mechanism is inserted into the interior of the foundation in sequence, and then the first steel sheet pile 4 and the second steel sheet pile 41 are inserted into the corresponding first plug-in groove 21 and the second plug-in groove 33 in sequence, and then the steel sheet pile and the support column 3 are fixed by passing the fixing bolts through the first connecting hole and the second connecting hole to complete the installation of the diversion bin and the closure bin, and multiple groups of support mechanisms are used to support and fix the two ends of the steel sheet pile, thereby improving the stability of the steel sheet pile, thereby improving the structural strength of the diversion bin and the closure bin, and at the same time facilitating the rapid enclosed of the diversion bin and the closure bin.

[0033] See Figures 4 to 6The side of the steel pipe pile 1 is fixedly connected with four groups of connecting screw rods 11 near the upper end, and the surface of the connecting screw rod 11 is threadedly connected with a nut. The upper end of the steel pipe pile 1 is provided with four groups of plug holes 12, and the side of the connecting block 2 is fixedly connected with four groups of connecting plates 23 near the lower end. The lower end of the connecting plate 23 is provided with a connecting groove 24, and the connecting groove 24 is stuck in the outer side of the connecting screw rod 11. The lower end of the connecting block 2 is fixedly connected with four groups of plug rods 25, and the plug rods 25 are inserted into the inside of the plug hole 12. The upper end of the connecting block 2 is fixedly connected with four groups of fixing screw rods 22, and the surface of the fixing screw rod 22 is threadedly connected with a nut. The bottom end of the support column 3 is fixedly connected with a fixing plate 31, and a side support plate 32 is fixedly connected between the side of the support column 3 and the fixing plate 31. The surface of the fixing plate 31 is provided with four groups of through holes, and the fixing screw rod 22 is inserted into the inside of the through hole.

[0034] Specifically, during the installation of the supporting mechanism, the connecting block 2 is placed on the upper side of the steel pipe pile 1, the plug rod 25 is inserted into the inside of the plug hole 12, and the connecting groove 24 is clamped on the outside of the connecting screw 11, and it is locked with a nut, and then the connecting block 2 and the steel pipe pile 1 are locked, and the support column 3 is placed on the upper side of the connecting block 2, and the fixed screw 22 is inserted into the inside of the through hole, and then it is locked and fixed with a nut, and the steel pipe pile 1, the connecting block 2 and the support column 3 are locked and fixed.

[0035] In addition, during the transportation process, the support mechanism is disassembled into the steel pipe pile 1, the connecting block 2 and the support column 3 for transportation, and then spliced ​​on site to facilitate the transportation of the support mechanism.

[0036] Working principle of the utility model: In order to improve the stability of steel sheet piles during installation and increase the installation speed, the steel pipe piles 1, the connecting blocks 2 and the support columns 3 are sequentially spliced ​​into a support mechanism, and then the support mechanisms are sequentially inserted into the inside of the foundation, and then the steel sheet piles are sequentially inserted between the two groups of support mechanisms. The support mechanisms support both ends of the steel sheet piles, thereby improving the stability of the steel sheet piles, improving the structural strength of the diversion bin and the closure bin, and realizing the rapid enclosure of the diversion bin and the closure bin.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention.

Claims

1. A double-row steel sheet pile cofferdam diversion and interception structure, comprising steel pipe piles (1), characterized in that: A support mechanism is provided on the upper side of the steel pipe pile (1), the support mechanism comprising a connecting block (2), a first plug-in slot (21), a support column (3), a second plug-in slot (33) and a clamping plate (34); the connecting block (2) is fixedly connected to the upper end of the steel pipe pile (1); the support column (3) is fixedly connected to the upper end of the connecting block (2); the first plug-in slot (21) is provided on the left and right sides of the connecting block (2); the second plug-in slot (33) is provided on the left and right sides of the support column (3); a second steel sheet pile (41) is provided between the front multiple groups of steel pipe piles (1) and the rear multiple groups of steel pipe piles (1); and a first steel sheet pile (4) is provided between the leftmost and rightmost groups of steel pipe piles (1).

2. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 1, characterized in that: Four groups of connecting screw rods (11) are fixedly connected to the side surface of the steel pipe pile (1) near the upper end, and nuts are threadedly connected to the surfaces of the connecting screw rods (11). Four groups of plug holes (12) are opened at the upper end of the steel pipe pile (1).

3. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 2, characterized in that: Four groups of connecting plates (23) are fixedly connected to the side of the connecting block (2) near the lower end. The lower ends of the connecting plates (23) are provided with connecting grooves (24), and the connecting grooves (24) are clamped on the outer sides of the connecting screw rods (11).

4. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 2, characterized in that: Four groups of plug-in rods (25) are fixedly connected to the lower end of the connection block (2), and the plug-in rods (25) are plugged into the inside of the plug-in holes (12).

5. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 1, characterized in that: Four sets of fixed screw rods (22) are fixedly connected to the upper end of the connecting block (2), and nuts are threadedly connected to the surfaces of the fixed screw rods (22).

6. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 5, characterized in that: The bottom end of the support column (3) is fixedly connected to a fixing plate (31), and a side support plate (32) is fixedly connected between the side of the support column (3) and the fixing plate (31). Four groups of through holes are opened on the surface of the fixing plate (31), and the fixing screw rod (22) is inserted into the inside of the through holes.

7. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 1, characterized in that: The side surfaces of the support column (3) are fixedly connected to positions on both the front and rear sides of the second plug slot (33) with multiple groups of clamping plates (34), and the surfaces of the clamping plates (34) are provided with first connection holes.

8. The double-row steel sheet pile cofferdam diversion and interception structure according to claim 7, characterized in that: Both ends of the first steel sheet pile (4) and the second steel sheet pile (41) are inserted into the first insertion groove (21) and the second insertion groove (33), and both ends of the first steel sheet pile (4) and the second steel sheet pile (41) are provided with second connection holes.

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