Combined box-shaped steel sheet pile for dock wall
By designing a hexagonal box-type structure for dock walls combined with box-shaped steel sheet piles, the problems of insufficient material strength and construction deformation in existing technologies have been solved, achieving efficient material utilization and improved construction progress.
Patent Information
- Application Number
- CN202521173530.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-06-09
AI Technical Summary
Existing box-shaped steel sheet piles have problems in dock construction, such as the material properties failing to meet high strength requirements, significant material waste during manufacturing, and easy deformation during construction.
It adopts a hexagonal box structure composed of two interlocking Z-shaped cold-rolled steel sheet piles and one U-shaped cold-rolled steel sheet pile, with reinforcing ribs at both ends connected diagonally, and lifting holes on the top of opposite sides. It is manufactured through cold bending and welding processes.
It improves the strength and deformation resistance of materials, reduces material waste, and enhances construction efficiency and quality.
Smart Images
Figure CN223919547U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of steel sheet pile manufacturing technology, especially a kind of steel sheet pile technology is manufactured in dock, specifically a kind of dock bulkhead combination box-shaped steel sheet pile. BACKGROUND
[0002] At present, box-type steel sheet piles are widely used in the construction of docks to improve construction speed and quality. Chinese patent 2020113567491, a dock water stop component and its preparation and installation method, and Chinese patent 2005100260936, a dock bulkhead combination box-type steel sheet pile construction method, disclose the common steel sheet pile structure and its construction method. Figure 1 It is the common structure form of existing box-shaped steel sheet pile, which is spliced and welded by four hot-rolled Z-shaped steel sheet piles, and the hot-rolled steel sheet pile needs to be heat treated and tempered, which greatly affects the material properties and is difficult to meet the high strength requirements of the dock. At the same time, the excess lock part needs to be cut off during the manufacturing process, causing material waste and increasing manufacturing costs, which is difficult to meet the needs of modern dock construction. Moreover, according to the applicant's knowledge, the current box-shaped steel sheet pile lacks corresponding reinforcing ribs and lifting holes at both ends, which causes deformation of the inserted end and the striking end due to large stress during construction, affecting the construction progress, and must be improved. SUMMARY
[0003] The utility model aims at the problem of unreasonable structure of existing box-shaped steel sheet pile for dock and lack of corresponding manufacturing process, and designs a dock bulkhead combination box-shaped steel sheet pile.
[0004] The technical solution of the utility model is:
[0005] A dock bulkhead combination box-shaped steel sheet pile, characterized in that it is composed of two Z-shaped cold-rolled steel sheet piles 1 connected by buckling and a U-shaped cold-rolled steel sheet pile 2, and the overall shape is a hexagonal box structure, and each end of the hexagonal box structure is internally provided with a connecting diagonal reinforcing rib 3, and each top of the opposite sides is provided with a lifting hole 4.
[0006] The length of the reinforcing rib 3 at the top of the pile is greater than the length of the reinforcing rib 3 at the bottom of the pile. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 It is a sectional view of the existing dock box-shaped steel sheet pile.
[0008] Figure 2 It is a sectional view of the dock box-shaped steel sheet pile of the utility model.
[0009] Figure 3 It is a side elevation view of the dock box-shaped steel sheet pile of the utility model.
[0010] Figure 4 Fig. 2 is a schematic diagram of a Z-shaped steel sheet pile production line according to an embodiment of the present application.
[0011] Figure 5 Fig. 3 is a schematic diagram of a U-shaped steel sheet pile production line according to an embodiment of the present application.
[0012] Figure 6 Fig. 4 is a schematic diagram of a cold-formed steel sheet pile a being installed on a sheet pile processing rack according to an embodiment of the present application.
[0013] Figure 7 Fig. 5 is a cross-sectional schematic diagram of Figure 6 Fig. 6 is a cross-sectional schematic diagram of
[0014] Figure 8 Fig. 7 is a schematic diagram of a U-shaped steel sheet pile being spot-welded to a cold-formed steel sheet pile a according to an embodiment of the present application.
[0015] Figure 9 Fig. 8 is a cross-sectional schematic diagram of Figure 8 Fig. 9 is a cross-sectional schematic diagram of
[0016] Figure 10 Fig. 10 is a schematic diagram of a box-shaped steel sheet pile having both ends welded internally according to an embodiment of the present application.
[0017] Figure 11 Fig. 11 is a cross-sectional schematic diagram of Figure 10 Fig. 12 is a cross-sectional schematic diagram of
[0018] Figure 12 Fig. 13 is a schematic diagram of a U-shaped cold-rolled steel sheet pile having both sides welded to a cold-formed steel sheet pile a according to an embodiment of the present application.
[0019] Figure 13 Fig. 14 is a cross-sectional schematic diagram of Figure 12 Fig. 15 is a cross-sectional schematic diagram of
[0020] Figure 14 Fig. 16 is a schematic diagram of a gantry welding state according to an embodiment of the present application.
[0021] Figure 15 Fig. 17 is a schematic diagram of a hole being opened and a reinforcing rib plate being welded according to an embodiment of the present application.
[0022] Figure 16 Fig. 18 is a cross-sectional schematic diagram of Figure 15 Fig. 19 is a cross-sectional schematic diagram of
[0023] Figure 17 Fig. 20 is a schematic diagram of a cold-formed steel sheet pile a being welded to a lock after being flipped over according to an embodiment of the present application.
[0024] Figure 18 Fig. 21 is a cross-sectional schematic diagram of Figure 17 Fig. 22 is a cross-sectional schematic diagram of DETAILED DESCRIPTION
[0025] The present application will be further described below in conjunction with the drawings and embodiments.
[0026] As shown in Figures 2-3 .
[0027] A dock bulkhead combined box-shaped steel sheet pile, the cross-sectional structure as shown in Figure 2 , side elevation structure as shown in Figure 3 , it is composed of two Z-shaped cold-rolled steel sheet piles 1 and a U-shaped cold-rolled steel sheet pile 2 connected by buckling, the whole is hexagonal box structure, the two ends of the hexagonal box structure are respectively provided with a connecting diagonal reinforcing rib plate 3, the part of the two Z-shaped cold-rolled steel sheet piles 1 extending out of the sharp corner edge of the U-shaped cold-rolled steel sheet pile 2 is used to connect with the adjacent combined box-shaped steel sheet pile, and a hoisting hole 4 is arranged on each of them, in general, the length of the reinforcing rib plate 3 at the top of the pile should be greater than the length of the reinforcing rib plate 3 at the bottom of the pile, as shown in Figure 3 , the length of the reinforcing rib plate at the top of the pile is 500mm, the length of the reinforcing rib plate at the sharp corner of the pile is 250mm, and the thickness of the reinforcing rib plate 3 should be greater than the thickness of the main plate of the pile body.
[0028] The manufacturing steps of the dock bulkhead combined box-shaped steel sheet pile of the utility model are shown in Figures 4-18 , and the specific steps are as follows:
[0029] Firstly, the Z-shaped cold-rolled steel sheet pile is produced by using the Z-shaped steel sheet pile production line; it can be directly manufactured according to Chinese patent 2010101882398, “Roller type continuous cold bending forming manufacturing method of Z-shaped steel sheet pile”, or it can be manufactured by using the equipment and steps shown in Figure 4 : after the steel coil is unwound by the feeding machine and leveled by the leveling machine, it is rolled by unit one forming mill K1, K2, K3, K4, K5, 5-pass forming mill, rolled by unit two forming mill K6, K7, K8, K9, K10, 5-pass forming mill, rolled by unit three forming mill K11, K12, K13, 3-pass cold bending forming mill, straightened by K14 correction equipment, sawed according to the required length, sprayed with marks, and stacked for standby.
[0030] Secondly, the U-shaped cold-rolled steel sheet pile is produced by using the U-shaped steel sheet pile production line; it can be directly manufactured according to Chinese patent 2010101882364 “Roller type continuous cold bending forming manufacturing method of U-shaped steel sheet pile”, or it can be manufactured by using the equipment and steps shown in Figure 5 : after the steel coil is unwound by the feeding machine and leveled by the leveling machine, it is rolled by K1, K2, K3, K4, K5, K6, 6-pass cold bending forming mill, straightened by K7 correction equipment, sawed according to the required length, and stacked for standby.
[0031] Thirdly, the Z-shaped cold-rolled steel sheet pile is buckled to form a cold-bent steel sheet pile a;
[0032] Fourth, the SLZ28-700 (Z27-700) cold-bent steel sheet pile a with the inserted lock is placed on the U-shaped rack 5 and fixed, and the effective width of the combined steel sheet pile is ensured, such as Figure 6 、 7 ;
[0033] Fifth, the U-shaped cold-rolled steel sheet pile formed by rolling the Q355B steel sheet is placed on the cold-bent steel sheet pile a, and the relative position is adjusted and positioned for welding, the welding leg size is hf=8mm, the effective length of the weld is L=100mm, and welding is performed every 2m, and the box structure steel sheet pile is obtained by completing the spot welding combination. During welding, a CO2 protective welding device is used for welding; Figure 8 、 9 ;
[0034] Sixth, within 750mm of the lock at the upper and lower ends of the box structure steel sheet pile, reciprocating electric welding is performed inside the box, the welding leg size is hf=6mm, and within 1.5m of the sharp foot of the U-shaped cold-rolled steel sheet pile at the upper and lower ends of the box structure steel sheet pile, reciprocating electric welding is performed inside the box, the welding leg size is hf=8mm, and the internal seam welding is completed. During welding, a CO2 protective welding device is used for welding; Figure 10 、 11 ,
[0035] Seventh, the gantry numerical control welding manipulator 6 (CO2 protection) is used to perform continuous full-length fusion welding on the outside of the box at the sharp foot of the U-shaped cold-rolled steel sheet pile, the penetration depth is >8mm, and after welding is completed, the welding seam is detected to be qualified for the next step; Figure 12 、 13 、14;
[0036] Eighth, the lifting hole 4 is opened; the lifting hole is symmetrically opened at a distance from the top of the pile, and the lifting hole is located on the opposite two side plates; the lifting hole is located 100mm from the top of the pile, the hole diameter The lifting hole is located on the extended lock outside the box structure steel sheet pile; such as Figure 15 、 16 Ninth, the reinforcing rib plate is welded: the reinforcing rib plate is welded on the top of the pile and the sharp foot of the pile, the welding leg size is hf=12mm, the length of the reinforcing rib plate on the top of the pile is 500mm, and the length of the reinforcing rib plate on the sharp foot of the pile is 250mm; such as Figure 15 、 16 ; The inside weld should be surrounded by the outside closure head, and after welding is completed, the welding seam is detected to be qualified for the next step;
[0037] Tenth, the sheet pile is turned over, and the gantry numerical control welding manipulator is used to weld the steel sheet pile lock full-length, the welding leg size is hf<6mm, such as Figure 17 、 18The top of the sheet pile is ground with the flange within the range (10.5m), and after the welding is completed, the sheet pile is removed, sprayed, sprayed with an identification mark, and stacked.
[0038] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art.
Claims
1. A type of combined box-shaped steel sheet pile for dock walls, characterized in that: It consists of two Z-shaped cold-rolled steel sheet piles (1) and one U-shaped cold-rolled steel sheet pile (2) that are fastened together. The whole structure is a hexagonal box structure. Each end of the hexagonal box structure is equipped with a reinforcing rib plate (3) that connects the opposite corners. There is a hoisting hole (4) on the top of each of the opposite sides.
2. The combined box-shaped steel sheet pile for dock walls according to claim 1, characterized in that: The length of the reinforcing plate (3) at the top of the pile is greater than the length of the reinforcing plate (3) at the bottom of the pile.