Underground diaphragm wall joint filling structure

Abstract

The utility model relates to the technical field of underground diaphragm walls, in particular to an underground diaphragm wall connector filling structure which comprises a reinforcement cage and I-shaped steel arranged on the two sides of the reinforcement cage, connecting strips are arranged at the upper ends of the sides, away from the reinforcement cage, of the I-shaped steel, and inserting grooves penetrating through the connecting strips are formed in the upper surfaces of the connecting strips. The protective plates penetrating through the connecting strips through the inserting grooves are arranged on the connecting strips, the surfaces of the protective plates are smooth, the protective plates are firstly put down through the inserting grooves before the water bags are put down, so that the protective plates enable the sides, away from the steel reinforcement cage, of the I-shaped steel to form a box body with four closed faces, and then the water bags are put down into the box body. When the water bag is in contact with the protection plate, the surface of the water bag cannot be damaged due to the smooth surface of the water bag, friction between the water bag and the protection plate can be reduced due to the smooth surface of the water bag so that the water bag can be put down more quickly, the protection plate is detached after the water bag is put down, and the water bag can be filled with water to block the gap. And the service life of the water bag is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of ground-connected walls, and in particular to an underground continuous wall joint filling structure. Background Art

[0002] An underground continuous wall refers to a continuous reinforced concrete wall formed by using a special trenching machine to dig a narrow trench section underground under the condition of mud wall protection, placing I-beams on both sides, placing a steel cage between the two I-beams and pouring concrete to connect them together. It has the advantages of good water-stopping effect, high overall rigidity and little impact on the environment, and has been widely used in the field of civil engineering.

[0003] When excavating the trench section of the underground continuous wall, in order to facilitate the lowering of the steel cage and form a protective layer on the outside of the steel cage, a gap is generally left between the I-beams on both sides of the steel cage and the trench wall. However, this gap causes the concrete to flow along the gap between the I-beams on both sides of the leading steel cage and the trench wall to the unconstructed rear section during concrete pouring, forming a weak leakage surface at the joint of the ground-connected wall, endangering the safety of the structure. In order to solve this technical problem, the prior art provides an underground continuous wall with a water bag. A water bag is placed in the gap between the I-beam and the trench wall. Before pouring concrete, water is filled into the water bag to expand the water bag to block the gap and prevent concrete from flowing around.

[0004] However, each time the water bag is lowered, it is inevitable that the water bag will scrape the tank wall, which reduces the service life of the water bag. Therefore, an underground continuous wall joint filling structure is required. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide an underground continuous wall joint filling structure to solve the technical problem in the prior art that each time the water bag is lowered, the water bag inevitably scratches the groove wall, resulting in a reduced service life of the water bag.

[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions: an underground continuous wall joint filling structure, comprising a steel cage and I-beams arranged on both sides of the steel cage, a connecting strip is provided at the upper end of the I-beam away from the steel cage, the connecting strip is located in the groove of the I-beam and is arranged parallel to the I-beam, a plug-in groove penetrating the connecting strip is provided on the upper surface of the connecting strip, a protective plate is provided on the connecting strip that passes through the connecting strip through the plug-in groove, and the surface of the protective plate is smooth.

[0007] By adopting the above technical scheme, before lowering the water bag, the protective plate is first lowered through the plug-in slot so that the protective plate forms a box body closed on all sides with the I-beam away from the steel cage, and then the water bag is lowered into the box body, so that the protective plate can prevent the water bag from rubbing against the slot wall. Because the slot wall is excavated, its surface is uneven and easy to scratch the water bag. When the water bag contacts the protective plate, its surface will not be damaged because of its smooth surface. Moreover, because of its smooth surface, the friction between the water bag and the protective plate can be reduced, so that the water bag can be lowered faster. After lowering the water bag, the protective plate is removed so that the water bag can be filled with water to seal the gap. In this way, the technical problem that each time the water bag is lowered in the prior art, the water bag inevitably scratches the slot wall, resulting in a reduced service life of the water bag is solved, thereby improving the service life of the water bag.

[0008] Furthermore, a lifting ring is provided on the upper end of the protective plate.

[0009] By adopting the above technical solution, the lifting ring makes it more convenient for construction workers to dismantle the protective plate.

[0010] Furthermore, sunken notches are provided on both sides of the I-beam where the connecting strip is provided, and both ends of the connecting strip are placed on the sunken notches.

[0011] By adopting the above technical solution, although the setting of the connecting strip and the protective plate can reduce the friction when the water bag is lowered, the setting of the connecting strip at the upper end of the I-beam will cause the water bag higher than the I-beam to compress the connecting strip when it is filled with water. Long-term compression of the connecting strip will also cause the water bag to compress the connecting strip and wear it. The setting of the sinking notch solves this technical problem. The connecting strip is placed on the sinking notch, so that the construction workers can directly take the connecting strip off the sinking notch after removing the protective plate, so that the side of the I-beam away from the steel cage is no longer blocked. In this way, the water bag higher than the I-beam will not be worn due to the compression of the connecting strip when it is filled with water, thereby improving the service life of the water bag.

[0012] Furthermore, a limiting column is arranged on the upper surface of the sunken notch, and both ends of the connecting strip are sleeved on the limiting column.

[0013] By adopting the above technical solution, although placing the connecting strip on the sunken notch can make it easier to disassemble the connecting strip, this also means that when the protective plate is lowered, if the protective plate has some slight shaking, the connecting strip will detach from the I-beam and fall down. The setting of the limit column solves this technical problem. Through the setting of the limit column, the two ends of the connecting strip are restricted, so that the shaking of the protective plate when it is lowered will not affect the connecting strip.

[0014] Furthermore, a connecting piece extends out from the periphery of one end of the connecting strip, and a through opening penetrating the connecting piece is opened on one side of the connecting piece.

[0015] By adopting the above technical solution, construction workers can take out the connecting strip by hand or by using tools through the opening, so that construction workers can disassemble and assemble the connecting strip more conveniently.

[0016] Furthermore, connecting pieces are provided at both ends of the connecting strip.

[0017] Furthermore, a telescopic structure is provided at the location where the I-beam is placed with the connecting strip.

[0018] By adopting the above technical solution, although the setting of the connecting strip and the protective plate can reduce the friction when the water bag is lowered, the size of the water bag lowered each time is different, which causes the overly large water bag to be blocked by the connecting strip and cannot be put down. The setting of the telescopic structure solves this technical problem. The distance between the connecting strip and the I-beam can be adjusted through the telescopic structure, so that the friction when the water bag is lowered is reduced and a larger water bag can be placed, thereby improving the practicality and applicability of the I-beam.

[0019] Furthermore, the telescopic structure includes a slot plug opened at the bottom end of the sunken notch and a plug-in bar plugged into the I-beam through the plug-in slot, and the limiting column is fixedly connected to the upper surface of the end of the plug-in bar away from the slot.

[0020] By adopting the above technical solution, since the connecting strip is sleeved on the limiting column, the interval between the connecting strip and the I-beam can be increased by sliding the plug-in strip away from the I-beam.

[0021] In summary, the present application includes at least one of the following beneficial technical effects.

[0022] 1. Through the arrangement of the protective plate and the connecting strip, it is achieved that before lowering the water bag, the protective plate is first lowered through the plug-in slot so that the protective plate forms a box body closed on all sides on one side of the I-beam away from the steel cage, and then the water bag is lowered into the box body, so that the protective plate can prevent the water bag from rubbing against the slot wall. Because the slot wall is excavated, its surface is uneven and easy to scratch the water bag. When the water bag contacts the protective plate, its surface will not be damaged because of its smooth surface. In addition, because of its smooth surface, the friction between the water bag and the protective plate can be reduced, so that the water bag can be lowered faster. After lowering the water bag, the protective plate is removed so that the water bag can be filled with water to seal the gap. In this way, the technical problem that each time the water bag is lowered in the prior art, the water bag inevitably scratches the slot wall, resulting in a reduction in the service life of the water bag is solved, thereby improving the service life of the water bag.

[0023] 2. By setting the sinking notch and the limiting column, the connecting strip is placed on the sinking notch, so that the construction workers can directly take the connecting strip off the sinking notch after dismantling the protective plate, so that the side of the I-beam away from the steel cage is no longer blocked. In this way, the water bag higher than the I-beam will not be worn due to the pressure on the connecting strip when it is filled with water, thereby improving the service life of the water bag. The limiting column extends upward from the upper surface of the sinking notch, and the two ends of the connecting strip are mounted on the limiting column. Through the setting of the limiting column, the two ends of the connecting strip are restricted, so that the shaking of the protective plate when it is lowered will not affect the purpose of the connecting strip.

[0024] 3. By setting up the telescopic structure, the sliding plug-in strip away from the I-beam can increase the distance between the connecting strip and the I-beam, thereby reducing the friction when the water bag is lowered and being able to place a larger water bag, thereby improving the practicality and applicability of the I-beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall structure diagram of the embodiment;

[0026] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0027] Figure 3 yes Figure 2 Enlarged view of part B in the middle.

[0028] Figure numerals: 1. steel cage; 2. I-beam; 20. sinking notch; 21. limiting column; 3. connecting strip; 30. plug-in groove; 31. connecting piece; 32. through-hole; 4. protective plate; 40. lifting ring; 5. telescopic structure; 50. slot; 51. plug-in strip. DETAILED DESCRIPTION

[0029] The present application is further described in detail below with reference to the accompanying drawings.

[0030] Example, see Figure 1 , Figure 2 , Figure 3, an underground continuous wall joint filling structure, including a steel cage 1 and an I-beam 2 arranged on both sides of the steel cage 1, a connecting strip 3 is arranged on the upper end of the side of the I-beam 2 away from the steel cage 1, the connecting strip 3 is located in the groove of the I-beam 2 and is arranged parallel to the I-beam, and a plug-in groove 30 penetrating the connecting strip 3 is opened on the upper surface of the connecting strip 3, and a protective plate 4 is arranged on the connecting strip 3 through the plug-in groove 30 to pass through the connecting strip 3, and the surface of the protective plate 4 is smooth. Before lowering the water bag, the protective plate 4 is first lowered through the plug-in groove 30 so that the protective plate 4 forms a box body with four sides closed on the side of the I-beam 2 away from the steel cage 1, and then the water bag is lowered into the box body, so that the protective plate 4 This can prevent the water bag from rubbing against the groove wall, because the groove wall is excavated, so its surface is uneven and easily scratches the water bag, and when the water bag contacts the protective plate 4, its surface will not be damaged because of its smooth surface, and because its surface is smooth, it can also reduce the friction between the water bag and the protective plate 4, making the water bag lowered faster. After the water bag is lowered, the protective plate 4 is removed so that the water bag can be filled with water to seal the gap. This solves the technical problem in the prior art that each time the water bag is lowered, the water bag inevitably scratches the groove wall, resulting in a reduced service life of the water bag, and improves the service life of the water bag. A lifting ring 40 is provided on the upper end of the protective plate 4, and the lifting ring 40 makes it more convenient for construction personnel to remove the protective plate 4.

[0031] Although the arrangement of the connecting strip 3 and the protective plate 4 can reduce the friction when the water bag is lowered, the arrangement of the connecting strip 3 at the upper end of the I-beam 2 will cause the water bag higher than the I-beam 2 to compress the connecting strip 3 when it is filled with water. Long-term compression of the connecting strip 3 will also cause the water bag to compress the connecting strip 3 and cause wear. In order to solve this technical problem, in this embodiment, sinking notches 20 are opened on both sides of the I-beam 2 where the connecting strip 3 is arranged, and the two ends of the connecting strip 3 are placed on the sinking notches 20. The connecting strip 3 is placed on the sinking notch 20, so that the construction workers can After removing the protective plate 4, the connecting strip 3 can be directly taken down from the sinking notch 20, so that the side of the I-beam 2 away from the steel cage 1 is no longer blocked. In this way, the water bag higher than the I-beam 2 will not be worn due to the pressure on the connecting strip 3 when it is filled with water, thereby improving the service life of the water bag. A limiting column 21 is provided on the upper surface of the sinking notch 20, and the two ends of the connecting strip 3 are sleeved on the limiting column 21. Through the setting of the limiting column 21, the two ends of the connecting strip 3 are restricted, so that the shaking of the protective plate 4 when it is lowered will not affect the connecting strip 3.

[0032] Although the setting of the limiting column 21 and the sunken notch 20 allows the connecting strip 3 to be disassembled and assembled, it also makes it very troublesome to disassemble and assemble the connecting strip 3 each time. In order to solve this technical problem, in this embodiment, connecting pieces 31 extend from both ends of the connecting strip 3, and a through hole 32 that passes through the connecting piece 31 is opened on one side of the connecting piece 31. The construction workers can pass their hands or use tools to pass through the through hole 32 to take out the connecting strip 3, so that the construction workers can disassemble and assemble the connecting strip 3 more conveniently.

[0033] Although the setting of the connecting strip 3 and the protective plate 4 can reduce the friction when the water bag is lowered, the size of the water bag lowered each time is different, which causes the oversized water bag to be blocked by the connecting strip 3 and cannot be lowered. In order to solve this technical problem, in this embodiment, a telescopic structure 5 is provided at the place where the connecting strip 3 is placed on the I-beam 2. The telescopic structure 5 includes a slot 50 opened at the bottom end of the sinking notch 20 and a plug-in strip 51 plugged into the I-beam 2 through the slot 50. The limiting column 21 is fixedly connected to the upper surface of the end of the plug-in strip 51 away from the slot 50. Because the connecting strip 3 is sleeved on the limiting column 21, sliding the plug-in strip 51 away from the I-beam 2 can increase the interval between the connecting strip 3 and the I-beam 2, thereby reducing the friction when the water bag is lowered and allowing a larger water bag to be placed, thereby improving the practicality and applicability of the I-beam 2.

[0034] Specific implementation process: first, place the connecting strip 3 on the plug-in strip 51 through the sinking notch 20, then lower the protective plate 4 through the plug-in groove 30, then lower the water bag between the protective plate 4 and the I-beam 2, then remove the protective plate 4 and the connecting strip 3, then fill the water bag with water and start construction.

[0035] When a larger water bag is encountered, the insertion strip 51 is slid away from the I-beam 2 to increase the interval between the connecting strip 3 and the I-beam 2 so that the larger water bag can be lowered.

[0036] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An underground continuous wall joint filling structure, comprising a steel cage (1) and I-beams (2) arranged on both sides of the steel cage (1), characterized in that: A connecting bar (3) is provided at the upper end of the I-beam (2) on the side away from the steel cage (1); the connecting bar (3) is located in the groove of the I-beam (2) and is arranged parallel to the I-beam; a plug-in groove (30) penetrating the connecting bar (3) is provided on the upper surface of the connecting bar (3); a protective plate (4) is provided on the connecting bar (3) and passes through the connecting bar (3) through the plug-in groove (30); and the surface of the protective plate (4) is smooth.

2. The underground continuous wall joint filling structure according to claim 1, characterized in that: The upper end of the protective plate (4) is provided with a lifting ring (40).

3. The underground continuous wall joint filling structure according to claim 1, characterized in that: The I-beam (2) is provided with sunken notches (20) on both sides where the connecting strip (3) is provided, and the two ends of the connecting strip (3) are placed on the sunken notches (20).

4. The underground continuous wall joint filling structure according to claim 3 is characterized in that: A limiting column (21) is arranged on the upper surface of the sunken notch (20), and both ends of the connecting strip (3) are sleeved on the limiting column (21).

5. An underground continuous wall joint filling structure according to claim 4, characterized in that: A connecting piece (31) extends out from the periphery of one end of the connecting strip (3), and a through opening (32) penetrating the connecting piece (31) is provided on one side of the connecting piece (31).

6. An underground continuous wall joint filling structure according to claim 5, characterized in that: Both ends of the connecting strip (3) are provided with connecting pieces (31).

7. An underground continuous wall joint filling structure according to claim 6, characterized in that: A telescopic structure (5) is provided at the location where the I-beam (2) is placed on the connecting strip (3).

8. An underground continuous wall joint filling structure according to claim 7, characterized in that: The telescopic structure (5) comprises a plug-in slot (30) provided at the bottom end of the sinking notch (20) and a plug-in strip (51) plugged into the I-beam (2) through the plug-in slot (30), and the limiting column (21) is fixedly connected to the upper surface of the plug-in strip (51) at one end away from the plug-in slot (30).

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