Anti-streaming device for underground diaphragm wall joint

Abstract

The utility model discloses an underground diaphragm wall joint anti-streaming device, which is characterized in that reinforcement cages are inserted in grooves on two inner side edges of an I-shaped steel joint, two outer sides of the I-shaped steel joint are fixedly connected with plain ends of internally-locked short-angle steel plates through welding plates, and the other ends of the internally-locked short-angle steel plates are internally-locked roll openings; the inner lock rolling opening is spirally hinged to an outer lock rolling opening of the outer lock long-angle steel plate, the plain end edge of the outer lock rolling opening makes contact with the inner wall of the groove section wall, and a hoisting hole is formed in the side edge of the outer lock rolling opening. The connecting efficiency of underground diaphragm walls of adjacent groove sections is improved, the rigidity of the grout stopping plate is improved, the problem of damage in the hoisting and lowering process is solved, the hoisting weight is reduced, the construction cost is reduced, construction is easy, installation is convenient, the construction efficiency is improved, and the good anti-streaming effect is achieved.

Description

Technical Field

[0001] The utility model relates to an underground continuous wall joint device used in construction engineering, in particular to an underground continuous wall joint anti-circumference flow device. Background Art

[0002] With the acceleration of urbanization, more and more deep and large foundation pits appear in cities. The underground continuous wall enclosure structure has been widely used due to its advantages such as high wall rigidity and good integrity. The underground continuous wall is connected in sections, and each slot section is connected by a joint. Commonly used joint devices include H-shaped steel joints, I-shaped steel joints and joint boxes. During the construction of underground continuous walls, concrete bypass often occurs at the joints.

[0003] For the problem of concrete bypass at I-beam joints or H-beam joints, a common method is to weld a stopper iron sheet to the outside of the I-beam side plate. However, the stopper iron sheet is expanded and pressed against the side wall of the slot section due to the squeezing effect of concrete, so as to block the concrete bypass section. When the stopper iron sheet is not pressed against the side wall of the slot section, there is a problem of concrete bypassing over the stopper iron sheet, causing delays in the construction of the underground continuous wall of the adjacent slot section. In addition, when the stopper iron sheet is used as the joint anti-bypass structure in the underground continuous wall of the ultra-deep large foundation pit, the stopper iron sheet is easily damaged during the hoisting and lowering process, creating a risk of concrete seepage at the joint of the underground continuous wall, and at the same time causing delays in the construction period and increasing construction costs. Summary of the invention

[0004] The utility model provides an underground continuous wall joint anti-bypass device, which solves the problem of concrete bypassing over the slurry stopping iron sheet during the construction of I-beam joints using slurry stopping iron sheets, and prevents the slurry iron sheet from being damaged during the hoisting and lowering process in the construction of ultra-deep underground continuous walls, thereby improving construction efficiency and reducing production costs.

[0005] The technical solution adopted by the utility model is as follows: An underground continuous wall joint anti-circumference device, comprising an I-beam joint installed in a slot wall, a steel cage is inserted in the grooves on the two inner sides of the I-beam joint, and the two outer sides of the I-beam joint are fixedly connected with the flat ends of the inner-locking short-angle steel plates through welding plates, and the other end of the inner-locking short-angle steel plate is an inner-locking rolled mouth, which is spirally hinged with the outer-locking rolled mouth of the outer-locking long-angle steel plate, and the flat edge of the outer-locking rolled mouth is in contact with the inner wall of the slot wall, and the side of the outer-locking rolled mouth is provided with a hoisting hole.

[0006] Furthermore, the inner locking roll opening is spirally expanded from the inside to the outside and corresponds to the outer locking roll opening.

[0007] Furthermore, the outer locking roll opening is spirally expanded from the inside to the outside and corresponds to the inner locking roll opening.

[0008] The utility model discloses the ... BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the front view of the installation structure of the utility model;

[0010] Figure 2 yes Figure 1 A top view of

[0011] Figure 3 It is a three-dimensional schematic diagram of the connection state of the outer locking roll opening 4 and the inner locking roll opening 5 in the utility model;

[0012] Figure 4 yes Figure 2 The enlarged structural diagram at A in the middle;

[0013] Figure 5 yes Figure 4 Middle B view;

[0014] Figure 6 It is a schematic diagram of the utility model in which the outer locking long angle steel plate 3 rotates to the right side when subjected to the pressure of the concrete on the left side;

[0015] In the figure: 1. I-beam joint, 2. Inner locking short angle steel plate, 3. Outer locking long angle steel plate, 4. Outer locking rolled mouth, 5. Inner locking rolled mouth, 6. Steel cage, 7. Slot wall, 8. Lifting hole, 9. Welding plate. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 6 , an anti-circumference flow device for underground continuous wall joints, comprising an I-beam joint 1 installed in a slot section wall 7, steel cages 6 are inserted in the grooves on the two inner sides of the I-beam joint 1, and the two outer sides of the I-beam joint 1 are fixedly connected with the flat ends of the inner locking short angle steel plates 2 through welding plates 9, and the other end of the inner locking short angle steel plates 2 is an inner locking roll mouth 5, and the inner locking roll mouth 5 is spirally unfolded from the inside to the outside and corresponds to the outer locking roll mouth 4. The outer locking roll mouth 4 is spirally unfolded from the inside to the outside and corresponds to the inner locking roll mouth 5. The inner locking roll mouth 5 is spirally hinged with the outer locking roll mouth 4 of the outer locking long angle steel plate 3, and the flat edge of the outer locking roll mouth 4 is in contact with the inner wall of the slot section wall 7, and the side of the outer locking roll mouth 4 is provided with a hoisting hole 8.

[0017] When the utility model is implemented, the I-beam joint 1 is first made to ensure that the two ends of the I-beam joint 1 are flush, and the length of the two ends of the I-beam joint 1 is also equal to the height of the steel cage 6 (such as Figure 1 Then, an inner locking short angle steel plate 2 and an outer locking long angle steel plate 3 are made respectively. One end of the inner locking short angle steel plate 2 is a flat end, and the other end is rolled inwardly into an inner locking rolled end 5; the outer locking long angle steel plate 3 is rolled inwardly into an outer locking rolled end 4, and two through holes are processed on one side of the outer locking long angle steel plate 3 as lifting holes 8 (as shown in FIG. Figure 5 As shown), and the adjacent side is a flat edge, which is located at the outer end of the outer locking roll 4. Both outer sides of the I-beam joint 1 are welded to the flat ends of the inner locking short angle steel plate 2 through welding plates 9. The hoisting holes 8 on one side of the outer locking long angle steel plate 3 are used to hoist the local underground continuous wall joint anti-circumference device. The inner locking roll 5 of the inner locking short angle steel plate 2 and the outer locking roll 4 of the outer locking long angle steel plate 3 are correspondingly buckled (as shown in FIG. Figure 3 , Figure 4 As shown), and can ensure that the left side of the outer locking long angle steel plate 3 rotates outward to the right side when subjected to concrete pressure, and the flat edge of the outer locking long angle steel plate 3 is closed with the groove segment wall 7 (as shown Figure 6 As shown), thereby preventing the concrete from flowing around to the right side of the I-beam joint 1 (as shown Figure 2 as shown).

[0018] The utility model discloses to prevent concrete from bypassing from the joint of the side wall of the groove section and the I-beam by arranging the anti-bypass water-stop steel plate at the joint of the underground continuous wall and the side wall of the groove section. The utility model can effectively prevent concrete from bypassing from the joint of the side wall of the groove section and the I-beam. The device is assembled and combined, and is easy to construct and operate. The long-angle steel plate can be rotated at a certain angle during the hoisting process so that the steel plate is close to the side wall of the groove section to block the bypass path of concrete. The disadvantages of the previous use of slurry-stopping iron sheets that need to be squeezed by concrete to achieve the purpose of blocking the bypass path are overcome, and the various disadvantages of the slurry-stopping iron sheets being damaged during the hoisting and lowering process are overcome.

Claims

1. An underground continuous wall joint anti-circumference device, comprising an I-beam joint installed in a groove segment wall, It is characterized in that Steel cages are inserted in the grooves on the two inner sides of the I-beam joint, and the flat ends of the inner-locking short-angle steel plates are fixedly connected to the two outer sides of the I-beam joint through welding plates. The other end of the inner-locking short-angle steel plate is an inner-locking rolled mouth, and the inner-locking rolled mouth is spirally hinged with the outer-locking rolled mouth of the outer-locking long-angle steel plate. The flat edge of the outer-locking rolled mouth is in contact with the inner wall of the groove section wall, and the side of the outer-locking rolled mouth is provided with a lifting hole.

2. The underground continuous wall joint anti-circumference device according to claim 1, It is characterized in that The inner locking roll opening is spirally expanded from the inside to the outside and corresponds to the outer locking roll opening.

3. The underground continuous wall joint anti-circumference device according to claim 1, It is characterized in that The outer locking roll opening is spirally expanded from the inside to the outside and corresponds to the inner locking roll opening.

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