Water passing building capable of shortening construction period

Abstract

The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a water passing building capable of shortening the construction period. The water-passing building comprises a first concrete structure and a second concrete structure which are arranged in a spaced mode in the left-right direction, the second concrete structure comprises a steel plate shell and backfill concrete poured in the steel plate shell, and a structural joint is formed between the steel plate shell and the first concrete structure; a water stop structure is arranged on the structural joint, the water stop structure comprises supporting filler and a water stop belt, the supporting filler is filled in the structural joint, the water stop belt is plugged at a joint opening of the structural joint, and the left side and the right side of the water stop belt are fixed to the two sides of the structural joint respectively. After the steel plate shell is installed, the water stopping structure can be installed for water passing, the construction period is shortened, the strength of the water stopping structure is improved through the supporting filler, severe deformation of the water stopping structure is avoided, a sealing opening of a structural joint can be sealed through the water stopping belt, and effective and reliable water stopping in the long-term using process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a water-passing building which can shorten the construction period. Background Art

[0002] At present, in water conservancy and hydropower projects, it is common to see phenomena such as the need to repair concrete damage to structures and the need for reconstruction and expansion due to changes in project functions during operation.

[0003] Common examples include water tunnels, spillway chutes, water diversion box culverts and other structures that have been in operation for a long time and have cracked or fallen off due to concrete structures, which require large-scale demolition. Changes in structural functions require the addition of new structures, which may lead to the demolition of the original structures. In the above construction processes, there are structural problems such as the pouring of new concrete structures and the treatment of joints between new and old concrete structures.

[0004] At present, the commonly used construction procedure is to deal with the structural joints between the two after the new concrete structure is poured and meets the standards. The two cannot be constructed simultaneously. However, in actual construction, due to the short construction period available for the project, the repair or renovation of the structure uses newly poured concrete, and the concrete strength must reach the designed strength before water can be passed, which is difficult to meet the project operation requirements in terms of time.

[0005] When it comes to the treatment of structural joints, it should be noted that for water-passing structures, especially those with a certain water head, improper treatment of the structural joints will lead to the risk of water seepage, which will accelerate the erosion and damage of the structure and reduce the reasonable service life of the building.

[0006] At present, the conventional treatment measure for structural joints of existing projects is to fill the structural joints with flexible materials and apply chemical anti-seepage agents on the surface. However, the water-stopping effect is not ideal in important structures or under the action of large flow rates and a certain head. At the same time, chemical anti-seepage agents pose a hidden danger to the water diversion safety of water supply projects.

[0007] Therefore, how to ensure effective and reliable water stopping of structural joints and safe operation of built structures while shortening the construction period is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a water-passing building which can shorten the construction period. The second concrete structure includes a steel plate shell and backfill concrete. After the steel plate shell is installed, the water-stop structure can be installed to pass water, and then the backfill concrete can be poured. There is no need to pour a new concrete structure first. The water-stop structure can be installed only after the strength of the new concrete structure reaches the design strength, and then water can be passed, which shortens the construction period. The support filler can be used to improve the strength of the water-stop structure, ensure the stability of the water-stop structure, and avoid severe deformation. The water-stop strip can be used to seal the structural seam, ensuring effective and reliable water-stopping during long-term use, and ensuring the operating safety and service life of the built water-passing building.

[0009] In response to the above technical problems, the technical solution provided by the utility model is a water-passing building that can shorten the construction period, including a first concrete structure and a second concrete structure arranged at intervals along the left-right direction, the second concrete structure including a steel plate shell and backfill concrete cast in the steel plate shell, a structural joint is formed between the steel plate shell and the first concrete structure, a waterstop structure is arranged on the structural joint, the waterstop structure includes a supporting filler filled in the structural joint, and a waterstop strip sealed at the seam opening of the structural joint, and the left and right sides of the waterstop strip are respectively fixed on both sides of the structural joint.

[0010] Furthermore, the waterstop is a U-shaped waterstop, which includes a U-shaped rubber waterstop and a U-shaped stainless steel waterstop from the inside to the outside, and the U-shaped waterstop is fixedly installed on the first concrete structure and the second concrete structure by a stainless steel bolt assembly.

[0011] Furthermore, the stainless steel bolt assembly includes a stainless steel bolt, a stainless steel nut and a stainless steel strip, and the vertical length of the stainless steel strip is adapted to the vertical length of the U-shaped waterstop.

[0012] Furthermore, one end of the supporting filler facing the opening of the structural seam is flush with the opening of the structural seam, and a notch adapted to the U-shaped portion of the U-shaped waterstop is provided at this end.

[0013] Furthermore, the supporting filler includes sealant and cement mortar which are sequentially filled along the structural joint from inside to outside.

[0014] Furthermore, the structural joint is filled with a foam board, and the cement mortar is wrapped by the foam board.

[0015] Furthermore, a vertically penetrating opening is provided on the foam board, and the cement mortar is filled in the opening.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The second concrete structure includes a steel plate shell and backfill concrete poured in the steel plate shell. In actual use, when an old concrete structure on one side is damaged and needs to be repaired, or a new concrete structure needs to be built on one side, a suitable steel plate shell can be installed at the demolished section or the designed position first, and then a water-stop structure can be installed to allow water to flow. After that, backfill concrete can be poured into the steel plate shell. There is no need to pour a new concrete structure first. The water-stop structure can be installed only after the strength of the new concrete structure reaches the designed strength, and then water can be passed through, which saves construction time and shortens the construction period.

[0018] The supporting filler of the water-stop structure can be used to support the entire water-stop structure, improve the strength of the water-stop structure, ensure the structural stability of the water-stop structure under high flow rate and certain water head, avoid drastic deformation of the water-stop structure and affect the water-stop effect, and use water-stop strips to seal the structural joints to prevent water from entering the structural joints, thereby ensuring effective and reliable water-stopping during long-term use and ensuring the safe operation and service life of the built structure.

[0019] (2) The waterstop is a U-shaped waterstop, which is a double-layer waterstop. The inner layer of the U-shaped rubber waterstop can flexibly solve the gaps caused by the unevenness of the concrete facing the water surface, and at the same time play a buffering role for the rigid concrete and stainless steel bolt components, using double insurance to ensure the water-stopping effect.

[0020] (3) A notch adapted to the U-shaped portion of the U-shaped waterstop is provided on the supporting filler, and the U-shaped waterstop can be protected by the supporting filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of a water-passing structure which can shorten the construction period.

[0022] Figure 2 It is an overhead view of a water-passing structure that can shorten the construction period.

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0024] In the figure: 1. first concrete structure; 11. first water-facing surface; 2. second concrete structure; 21. second water-facing surface; 22. steel plate shell; 23. backfill concrete; 3. structural joint; 4. water-stop structure; 41. U-shaped waterstop; 411. U-shaped rubber waterstop; 412. U-shaped stainless steel waterstop; 413. U-shaped part; 42. supporting filler; 421. sealant; 422. cement mortar; 423. foam board; 5. anti-seepage coating layer; 6. C-shaped opening; 7. stainless steel bolts; 8. stainless steel nuts; 9. stainless steel strips; 10. bolt holes; S, water flow. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0027] In this embodiment, if Figure 1 As shown, the left-right direction is the spacing direction between the first concrete structure 1 and the second concrete structure 2 .

[0028] refer to Figures 1 to 3 The utility model is a water-passing structure (hereinafter referred to as the water-passing structure) capable of shortening the construction period, comprising a first concrete structure 1 and a second concrete structure 2 arranged in sequence along the left-right direction, wherein the second concrete structure 2 comprises a steel plate shell 22 and backfill concrete 23 poured in the steel plate shell 22, wherein the sides of the first concrete structure 1 and the steel plate shell 22 facing the direction of the water flow S are respectively a first water-facing surface 11 and a second water-facing surface 21, and the first water-facing surface 11 is flush with the second water-facing surface 21.

[0029] A structural joint 3 is formed between the steel plate shell 22 and the first concrete structure 1, and a waterstop structure 4 is arranged on the structural joint 3. The waterstop structure 4 includes a supporting filler 42 filled inside the structural joint 3, and a waterstop strip sealed at the seam opening of the structural joint 3. The left and right sides of the waterstop strip are respectively fixed on the first water-facing surface 11 and the second water-facing surface 21 on both sides of the structural joint 3.

[0030] In this way, the second concrete structure 2 includes a steel plate shell 22 and backfill concrete 23 poured in the steel plate shell 22. In actual use, when the old concrete structure on one side is damaged and needs to be repaired, or a new concrete structure needs to be built on one side, the appropriate steel plate shell 22 can be installed at the demolished section or the new location, and then the water-stop structure 4 can be installed to run the water, and then the backfill concrete 23 can be poured into the steel plate shell 22. There is no need to pour a new concrete structure first. The water-stop structure 4 can be installed only after the strength of the new concrete structure reaches the design strength, and then the water can be passed, shortening the construction period. Or during construction, on the basis of meeting the actual strength and water-stopping requirements, the water-stop structure 4 and the pouring of backfill concrete can be constructed simultaneously, further shortening the construction period and increasing the construction rate.

[0031] At the same time, the supporting filler 42 of the water-stop structure 4 can be used to support the entire water-stop structure 4, improve the strength of the water-stop structure 4, ensure the structural stability of the water-stop structure 4 under a large flow rate and a certain water head, avoid drastic deformation of the water-stop structure 4 and affect the water-stop effect, and use a water-stop strip to seal the structural seam 3 to prevent water from entering the structural seam 3, thereby ensuring effective and reliable water-stopping during long-term use and ensuring the operational safety and service life of the built building.

[0032] Preferably, in this embodiment, the waterstop is a U-shaped waterstop 41, and the U-shaped waterstop 41 is symmetrically arranged along the structural seam 3 in the left and right directions, so that the U-shaped part 413 of the U-shaped waterstop 41 penetrates into the structural seam 3. In actual use, the U-shaped part 413 can adapt to the uneven deformation during the operation of the project, avoid structural deformation and pulling damage, and ensure the water-stopping effect.

[0033] The U-shaped waterstop 41 includes a U-shaped rubber waterstop 411 and a U-shaped stainless steel waterstop 412 from the inside to the outside. The U-shaped waterstop 41 is designed as a double-layer waterstop, wherein the inner U-shaped rubber waterstop 411 can flexibly solve the gaps caused by the unevenness of the concrete facing the water surface, and at the same time play a buffering role between the rigid concrete and the stainless steel bolt assembly, and the outer U-shaped stainless steel waterstop 412 can protect the inner U-shaped rubber waterstop 411, using double insurance to ensure the water-stopping effect.

[0034] In this embodiment, if Figure 1 , 2 As shown, the U-shaped water stop 41 is fixedly installed on the first concrete structure 1 and the second concrete structure 2 by means of a stainless steel bolt assembly.

[0035] Specifically, a plurality of bolt holes 10 are symmetrically provided on the first water-facing surface 11 and the second water-facing surface 21 at positions corresponding to the U-shaped waterstop 41, and the stainless steel bolt assembly includes stainless steel bolts 7, stainless steel nuts 8, and stainless steel strips 9. The bolt holes 10 on each side are arranged in multiple rows at intervals along the left-right direction, and each row is arranged with multiple bolt holes 10 at intervals along the vertical direction. A stainless steel bolt 7 is arranged in each bolt hole 10, and a stainless steel strip 9 is sleeved on each row of stainless steel bolts 7, and the vertical length of the stainless steel strip 9 is adapted to the vertical length of the U-shaped waterstop 41, so that the U-shaped waterstop 41 can be evenly pressed against the first water-facing surface 11 and the second water-facing surface 21 through the stainless steel strip 9 by screwing the stainless steel nut 8, thereby ensuring the sealing between the U-shaped waterstop 41 and the corresponding side water-facing surface.

[0036] In this embodiment, if Figure 1 , 2 As shown, the supporting filler 42 includes a sealant 421 and a cement mortar 422 which are filled in sequence from the inside to the outside along the structural joint 3, wherein the sealant 421 is used to fill and seal the end of the structural joint 3 which is away from the water flow S. In this way, the sealant 421 can be used to improve the water-stopping effect, and the cement mortar 422 can be used to provide rigid support to ensure the supporting strength of the water-stopping structure 4 and ensure its service life.

[0037] Preferably, in this embodiment, the supporting filler 42 further includes a foam board 423 filled in the structural joint 3, and the cement mortar 422 is wrapped by the foam board 423. In this way, the foam board 423 can be used as a buffer to avoid the cement mortar 422 and the concrete building structure, and the U-shaped water stop 41 and the cement mortar 422 from hard contact during use, thereby preventing the water stop structure 4 from being damaged, thereby ensuring the service life of the water stop structure 4.

[0038] Specifically, Figure 2 As shown, a C-shaped opening 6 is provided in the middle of the foam board 423 and is opened toward the first building. The C-shaped opening 6 vertically penetrates the foam board 423, and the cement mortar 422 is entirely filled in the C-shaped gap. In this way, on the one hand, it is possible to avoid the cement mortar 422 from being in hard contact with the first concrete structure 1 and the second concrete structure 2 at the same time, thereby ensuring the deformation capacity of the water-stop structure 4. At the same time, after the cement mortar 422 is cured, it can be integrated with the first concrete structure 1, maintaining the same position and improving stability.

[0039] Of course, in other embodiments, when meeting actual usage requirements, the opening on the foam board 423 can be a "mouth"-shaped opening. At this time, the foam board 423 is a cylindrical structure, and the cement mortar 422 is poured inside the cylindrical structure.

[0040] Preferably, in this embodiment, one end of the supporting filler 42 facing the seam opening of the structural seam 3 is flush with the seam opening of the structural seam 3 , and a notch adapted to the U-shaped portion 413 of the U-shaped waterstop 41 is provided at this end.

[0041] Specifically, Figure 2 As shown, the inner side of the foam board 423 facing the sealant 421 is arranged in contact with the sealant 421, and the outer side of the foam board 423 facing the U-shaped water stop 41 is flush with the seam opening of the structural seam 3, that is, it is arranged flush with the first water-facing surface 11, and the foam board 423 runs through the structural seam 3 as a whole. A matching U-shaped notch is provided in the foam board 423 corresponding to the U-shaped portion 413 of the U-shaped water stop 41, and the foam board 423 can be used to buffer the deformation of the U-shaped portion 413 to protect the U-shaped water stop 41. In this embodiment, the foam board 423 can be a polyethylene foam board 423. Of course, in other embodiments, the foam board 423 can also be other types of foam boards 423 when the buffering and water-stopping effects are met.

[0042] Preferably, in this embodiment, the first water-facing surface 11 and the second water-facing surface 21 are painted from inside to outside as Figure 3 The anti-seepage coating layer 5 is shown, and the anti-seepage coating layer 5 is arranged on the inner side of the U-shaped water stop strip 41, further improving the water-stopping and anti-seepage effect. In this embodiment, the anti-seepage coating layer 5 is SR anti-seepage coating. The specific anti-seepage coating can be selected according to the actual design requirements. It is common knowledge known to those skilled in the art and will not be repeated here.

[0043] The construction process of this application is taken as an example of the repair process of a damaged old concrete structure on one side of a built water-filled building. At this time, the old concrete structure on the intact side is the first concrete structure 1. The specific steps are as follows:

[0044] Step 1: When repairing the concrete structure of a flooded building, first remove the old concrete structure at the repair section and remove the floating dust on the surface of the concrete structure on both sides;

[0045] Step 2: Process the steel plate shell 22 adapted to the demolition section according to the functional requirements, and install the steel plate shell 22 on the damaged section of the damaged old concrete structure, so that a structural joint 3 is formed between the first concrete structure 1 and the steel plate shell 22;

[0046] Step 3: The first water-facing surface 11 and the second water-facing surface 21 are kept flat as a whole, and the raised parts are polished.

[0047] Step 4: Bolt holes 10 are provided on the first water-facing surface 11 and the second water-facing surface 21 , and the bolt holes 10 are symmetrically arranged on both sides.

[0048] Step 5: Install the water stop structure 4 on the structural joint 3, first fill the inner side of the structural joint 3 with sealant 421, then fill with foam board 423, and then pour and fill cement mortar 422 in the C-shaped notch.

[0049] Step 6: Apply an anti-seepage coating layer 5 on the first water-facing surface 11 and the second water-facing surface 21 from the inside to the outside, install a U-shaped waterstop 41, and fix the U-shaped waterstop 41 with a stainless steel bolt 7 assembly.

[0050] Step 7: After the installation of the water-stopping structure 4 is completed, the project is put into operation and the water-stopping effect reaches the required level, then backfill concrete 23 is filled into the steel plate shell 22 to complete the construction of the second concrete structure 2 and complete the repair.

[0051] Of course, in other embodiments, the second concrete structure 2 may also be a newly built concrete structure, and the construction steps are the same as those described above, which will not be repeated here.

[0052] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0053] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0054] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A water-passing structure capable of shortening the construction period, characterized in that: It includes a first concrete structure and a second concrete structure arranged at intervals along the left-right direction, the second concrete structure includes a steel plate shell and backfill concrete cast in the steel plate shell, a structural joint is formed between the steel plate shell and the first concrete structure, a waterstop structure is arranged on the structural joint, the waterstop structure includes a supporting filler filled in the structural joint, and a waterstop strip sealed at the seam opening of the structural joint, and the left and right sides of the waterstop strip are respectively fixed on both sides of the structural joint.

2. A water-passing structure capable of shortening the construction period according to claim 1, characterized in that: The waterstop is a U-shaped waterstop, which includes a U-shaped rubber waterstop and a U-shaped stainless steel waterstop from the inside to the outside. The U-shaped waterstop is fixedly installed on the first concrete structure and the second concrete structure by a stainless steel bolt assembly.

3. A water-passing structure capable of shortening the construction period according to claim 2, characterized in that: The stainless steel bolt assembly includes a stainless steel bolt, a stainless steel nut and a stainless steel pressure strip, and the vertical length of the stainless steel pressure strip is adapted to the vertical length of the U-shaped water stop strip.

4. A water-passing structure capable of shortening the construction period according to claim 3, characterized in that: One end of the supporting filler facing the seam opening of the structural seam is flush with the seam opening of the structural seam, and a notch adapted to the U-shaped part of the U-shaped waterstop is provided at this end.

5. The water-passing structure capable of shortening the construction period according to claim 1 is characterized in that: The supporting filler includes a sealant and cement mortar which are sequentially filled along the structural joint from the inside to the outside.

6. A water-passing structure capable of shortening the construction period according to claim 5, characterized in that: The structural joint is also filled with a foam board, and the cement mortar is wrapped by the foam board.

7. A water-passing structure capable of shortening the construction period according to claim 6, characterized in that: The foam board is provided with a vertically penetrating opening, and the cement mortar is filled in the opening.

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