Waterstop protection structure of underground connecting passage and underground connecting passage constructed in phases
By setting up a transition section and a temporary retaining wall at the end of the early channel, the problem of the water stop being easily damaged and contaminated by mud during phased construction was solved, which saved construction time and costs and reduced the risk of leakage.
Patent Information
- Application Number
- CN202311868267.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2043-12-29
AI Technical Summary
In underground connecting passages constructed in phases, waterstops are easily damaged during backfill construction or secondary excavation, and the contaminated soil is difficult to clean, resulting in the need to demolish and modify the structure in later construction, increasing construction time and costs.
A transition section and a temporary retaining wall are set up at the end of the early channel to prevent backfill soil from entering the channel, protect the embedded waterstop, and ensure that it is not damaged. The temporary retaining wall can be removed during the later construction to avoid demolition and modification of the main structure.
Effectively protect waterstops, reduce damage and soil contamination, save construction time and costs, reduce the risk of leakage at joints, and improve construction efficiency.
Smart Images
Figure CN117702931B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of building construction, and in particular to a waterstop protection structure for an underground connecting passage and an underground connecting passage constructed in phases. Background Art
[0002] When a project is constructed in phases and the phased basements need to be connected or a municipal passage interface needs to be reserved in the basement, the earlier and later constructed parts are usually separated at the joint through expansion joints, and embedded waterstops are installed on the top plate, bottom plate, and exterior wall of the earlier construction at the expansion joints for waterproofing.
[0003] When the later construction part is not completed, temporary backfill is required to restore the ground function. The unprotected waterstop is easily damaged during backfill construction or secondary excavation. After the secondary excavation, the mud stuck on the waterstop is difficult to clean thoroughly, which reduces the bonding strength with the newly poured concrete. As a result, the earlier constructed structure needs to be partially demolished and the waterstop needs to be replaced during the later construction, which delays the construction period and increases costs. Summary of the Invention
[0004] Based on the above description, the present invention provides an underground connecting channel waterstop protection structure and an underground connecting channel constructed in phases, so as to solve the problem in the related technology that when part of the later construction is not constructed, temporary backfilling is required to restore the ground function, and the lack of protection of the waterstop is easily damaged during backfill construction or secondary excavation. Moreover, after the secondary excavation, the soil stuck on the waterstop is difficult to be completely cleaned, which reduces the bonding strength with the newly poured concrete, resulting in the need to partially dismantle and replace the waterstop of the earlier constructed structure during the later construction, which delays the construction period and increases costs.
[0005] The technical solution of the present invention to solve the above technical problems is as follows:
[0006] In the first aspect, the present application provides a waterstop protection structure for an underground connecting passage, the technical solution adopted is as follows:
[0007] A waterstop protection structure for an underground connecting passage, characterized by comprising:
[0008] The early channel includes:
[0009] - The main body section includes the preliminary channel top plate, the preliminary channel bottom plate and the preliminary channel outer walls on both sides, wherein the preliminary channel top plate, the preliminary channel bottom plate and the end faces of the preliminary channel outer walls on both sides are provided with embedded waterstops;
[0010] - a transition section, which is provided at the end of the main section, and includes a transition section bottom plate and two transition section outer walls. The transition section bottom plate is located below the preliminary channel bottom plate, is parallel to the preliminary channel bottom plate and extends in a direction away from the preliminary channel bottom plate, is sealed to the preliminary channel bottom plate, and the two transition section outer walls are respectively connected to the two preliminary channel outer walls, and the two preliminary channel outer walls are located between the two transition section outer walls, are parallel to the preliminary channel outer walls and extend in a direction away from the preliminary channel outer walls, and the transition section bottom plate is sealed to the two transition section outer walls;
[0011] A temporary retaining wall is arranged in the transition section and is spaced apart from the main section in the length direction of the advance channel. The temporary retaining wall is sealed with the transition section bottom plate, the transition section outer wall and the advance channel top plate to prevent backfill soil from contacting the embedded waterstop.
[0012] On the basis of the above technical solution, the present invention can also be improved as follows.
[0013] Preferably, the bottom plate of the transition section and the bottom plate of the early channel are integrally formed, and the outer wall of the transition section and the outer wall of the early channel are integrally formed.
[0014] Preferably, a thickened portion is provided at the end of the preliminary channel top plate, the thickened portion is located on the outside of the preliminary channel top plate and is formed integrally with the preliminary channel top plate, and the temporary retaining wall is connected to the thickened portion.
[0015] Preferably, the distance between the temporary retaining wall and the end of the main section is not less than the overhanging length of the embedded waterstop.
[0016] Preferably, the preliminary channel top plate, the preliminary channel outer walls on both sides and the embedded waterstop in the preliminary channel bottom plate are interconnected to form a continuous waterstop.
[0017] Preferably, a waterproof layer is provided on the soil side of the preliminary channel and the soil side of the temporary retaining wall.
[0018] Preferably, a concrete cushion layer is provided at the bottom of the preliminary channel.
[0019] In a second aspect, the present application provides an underground connecting passage constructed in phases, comprising:
[0020] The early channel includes:
[0021] - Main section, which includes the preliminary channel top plate, preliminary channel bottom plate and preliminary channel outer walls on both sides;
[0022] - a transition section, which is provided at the end of the main section, and includes a transition section bottom plate and two transition section outer walls. The transition section bottom plate is located below the preliminary channel bottom plate, is parallel to the preliminary channel bottom plate and extends in a direction away from the preliminary channel bottom plate, is sealed to the preliminary channel bottom plate, and the two transition section outer walls are respectively connected to the two preliminary channel outer walls, and the two preliminary channel outer walls are located between the two transition section outer walls, are parallel to the preliminary channel outer walls and extend in a direction away from the preliminary channel outer walls, and the transition section bottom plate is sealed to the two transition section outer walls;
[0023] The late channel has one end located in the transition section, a deformation seam is provided along the length of the channel between the late channel and the main section, and a water stop is provided between the main section and the late channel to prevent water from entering the channel.
[0024] Preferably, the width of the deformation seam is not less than 20 mm.
[0025] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0026] 1. This application sets a transition section at the end of the preliminary channel, and sets a temporary retaining wall in the transition section to block the interface of the preliminary channel, thereby preventing backfill soil from entering the preliminary channel. The embedded rubber waterstop is located in the preliminary channel, preventing the backfill soil from contacting the embedded waterstop. The waterstop is not easily damaged or contaminated by mud. During the later construction of the project, the temporary retaining wall can be removed without demolishing or modifying the main structure of the preliminary construction, thus saving construction time and costs.
[0027] 2. For the underground connecting passages constructed in phases in this application, after the construction of the later passages is completed, the transition section floor and transition section exterior wall can be used as advance water-stopping structures to reduce the risk of leakage at the joints between the early passages and the later passages. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 A schematic plan view of the waterstop protection structure for an underground connecting channel provided by an embodiment of the present invention;
[0029] Figure 2 for Figure 1 Schematic diagram of the cross section along line AA;
[0030] Figure 3 A schematic diagram of the plan structure of an underground connecting passage constructed in phases according to an embodiment of the present invention;
[0031] Figure 4 for Figure 3 Schematic cross-section along line BB.
[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0033] 1. Main section; 11. Initial channel top plate; 111. Thickened part; 12. Initial channel bottom plate; 13. Initial channel outer wall; 2. Transition section; 21. Transition section bottom plate; 22. Transition section outer wall; 3. Embedded waterstop; 4. Temporary retaining wall; 5. Waterproof layer; 6. Concrete cushion layer; 7. Later channel top plate; 8. Later channel bottom plate; 9. Later channel outer wall; 10. Expansion joint. DETAILED DESCRIPTION
[0034] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.
[0036] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.
[0037] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.
[0038] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
[0039] Reference Figure 1-2 As shown, an embodiment of the present application provides an underground connecting channel waterstop protection structure, which includes an advance channel and a temporary retaining wall 4.
[0040] Reference Figure 1-2 As shown, the preliminary channel includes a main section 1 and a transition section 2. The main section 1 includes a preliminary channel top plate 11, a preliminary channel bottom plate 12 and preliminary channel outer walls 13 on both sides. The preliminary channel top plate 11, the preliminary channel bottom plate 12 and the end faces of the preliminary channel outer walls 13 on both sides are all provided with a buried water stop 3; the transition section 2 is provided at the end of the main section 1, including a transition section bottom plate 21 and two transition section outer walls 22. The transition section bottom plate 21 is located below the preliminary channel bottom plate 12. The transition section bottom plate 2 1 is parallel to the preliminary channel bottom plate 12 and extends in a direction away from the preliminary channel bottom plate 12, the transition section bottom plate 21 is sealedly connected to the preliminary channel bottom plate 12, the two transition section outer walls 22 are respectively connected to the two preliminary channel outer walls 13, and the two preliminary channel outer walls 13 are located between the two transition section outer walls 22, the transition section outer wall 22 is parallel to the preliminary channel outer wall 13 and extends in a direction away from the preliminary channel outer wall 13, and the transition section bottom plate 21 is sealedly connected to the two transition section outer walls 22.
[0041] Reference Figure 1-2 As shown, specifically, the end faces of the preliminary channel top plate 11, the preliminary channel bottom plate 12 and the preliminary channel outer walls 13 on both sides are planes perpendicular to the length direction of the channel, and the embedded waterstops 3 in the preliminary channel top plate 11, the preliminary channel bottom plate 12 and the preliminary channel outer walls 13 on both sides are interconnected to form a continuous waterstop, so as to ensure the water-stopping effect at the joints of the preliminary channel and the later channel after the construction of the later channel is completed.
[0042] Reference Figure 1-2 As shown, the transition section bottom plate 21 is integrally formed with the preliminary channel bottom plate 12, and the transition section outer wall 22 is integrally formed with the preliminary channel outer wall 13; specifically, the transition section bottom plate 21 is formed by bending the preliminary channel bottom plate 12 downward and extending in the length direction of the channel, and the transition section outer wall 22 is formed by bending the preliminary channel outer wall 13 outward toward the channel side and extending in the length direction of the channel. The transition section bottom plate 21 and the two transition section outer walls 22 are integrally formed, so that the transition section 2 and the main section 1 are integrally formed.
[0043] Reference Figure 1-2 As shown, further, in order to facilitate the connection between the temporary retaining wall 4 and the preliminary channel top plate 11 and to enable the embedded waterstop 3 to be located in the channel, a thickened portion 111 is provided at the end of the preliminary channel top plate 11, and the thickened portion 111 is located on the outside of the preliminary channel top plate 11 and is integrally formed with the preliminary channel top plate 11, and the temporary retaining wall 4 is connected to the thickened portion 111; specifically, the thickened portion 111 is formed by thickening the preliminary channel top plate 11 toward the outside of the channel, and the thickened portion 111 is integrally formed with the preliminary channel top plate 11; the temporary retaining wall 4 is connected to the thickened portion 111 of the preliminary channel top plate 11, so that after the construction of the temporary retaining wall 4 is completed, the embedded waterstop 3 is located in the channel, and the temporary retaining wall 4 prevents the backfill soil from contacting the embedded waterstop 3, thereby protecting the embedded waterstop 3.
[0044] Furthermore, when designing, the distance between the temporary retaining wall 4 and the end of the main section 1 is not less than the overhanging length of the embedded waterstop 3, and the steel bars of the temporary retaining wall 4 need to be reliably anchored into the preliminary channel top plate 11, the transition section bottom plate 21, and the transition section outer wall 22 to ensure that the temporary retaining wall 4 has sufficient strength.
[0045] Reference Figure 1-2 As shown, further, a waterproof layer 5 is provided on the soil side of the advance channel and the soil side of the temporary retaining wall 4, and a concrete cushion layer 6 is provided below the waterproof layer 5 at the bottom of the advance channel to improve the waterproof ability of the advance channel and the temporary retaining wall 4 and the stability of the advance channel.
[0046] The dimensions and reinforcement of the channel top plate, bottom plate, basement outer wall and temporary retaining wall 4 are calculated and determined in accordance with current standards and specifications, and the embedded waterstop 3 adopts a rubber waterstop.
[0047] When the temporary retaining wall 4 is removed during the later construction period, protective measures must be taken for the embedded waterstop 3 to protect the embedded waterstop 3 from being damaged.
[0048] Reference Figure 3-4 As shown, this embodiment also provides an underground connecting channel waterstop protection structure, which includes the early channel and the late channel as described above.
[0049] Among them, one end of the later channel is located in the transition section 2 of the earlier channel, and a deformation joint 10 along the length direction of the channel is provided between the later channel and the main section 1, and a water stop is provided between the main section 1 and the later channel to prevent water from entering the channel.
[0050] Specifically, the later channel includes a later channel top plate 7, a later channel bottom plate 8, and later channel outer walls 9 on both sides, which correspond to the earlier channel top plate 11, earlier channel bottom plate 12, and earlier channel outer walls 13 on both sides. The ends of the later channel and the ends of the main section 1 of the earlier channel are provided with intervals along the channel length to form expansion joints 10. Correspondingly, the two sides of the embedded waterstop 3 are respectively embedded in the earlier channel and the later channel to form a continuous waterstop. The width of the expansion joint 10 is determined according to needs and must be no less than 20mm.
[0051] Furthermore, a waterproof layer 5 is also provided on the soil side of the later channel, and a concrete cushion layer 6 is also provided below the waterproof layer 5 at the bottom of the later channel.
[0052] The advantages of this application are: before the construction of the later channel structure, the embedded rubber waterstop is located indoors, and the waterstop is not easily damaged or contaminated with mud; during the later construction, the temporary retaining wall 4 can be demolished without demolishing or modifying the main structure of the early construction, saving construction time and cost; after the later construction is completed, the transition section bottom plate 21 and the transition section outer wall 22 are equivalent to advanced waterstopping, reducing the risk of leakage at the joints of the early channel and the later channel.
[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An underground connecting passage constructed in phases, characterized in that: include: The early channel includes: - Main section (1), which includes the preliminary channel top plate (11), the preliminary channel bottom plate (12) and the preliminary channel outer walls (13) on both sides; - a transition section (2), which is provided at the end of the main section (1), and comprises a transition section bottom plate (21) and two transition section outer walls (22); the transition section bottom plate (21) is located below the preliminary channel bottom plate (12); the transition section bottom plate (21) is parallel to the preliminary channel bottom plate (12) and extends in a direction away from the preliminary channel bottom plate (12); the transition section bottom plate (21) is sealedly connected to the preliminary channel bottom plate (12); the two transition section outer walls (22) are respectively connected to the two preliminary channel outer walls (13); and the two preliminary channel outer walls (13) are located between the two transition section outer walls (22); the transition section outer wall (22) is parallel to the preliminary channel outer wall (13) and extends in a direction away from the preliminary channel outer wall (13); the transition section bottom plate (21) is sealedly connected to the two transition section outer walls (22); A late channel, one end of which is located in the transition section (2), a deformation joint (10) along the length of the channel is provided between the late channel and the main section (1), and a water stop is provided between the main section (1) and the late channel to prevent water from entering the channel; A temporary retaining wall (4) is provided in the transition section (2) when the later channel is not constructed, the temporary retaining wall (4) and the main section (1) are spaced apart in the length direction of the early channel, and the temporary retaining wall (4) is sealedly connected to the transition section bottom plate (21), the transition section outer wall (22) and the early channel top plate (11) to prevent backfill soil from contacting the embedded waterstop (3) pre-buried in the main section (1); The soil-facing side of the early passage, the soil-facing side of the late passage, and the soil-facing side of the temporary retaining wall (4) are provided with a waterproof layer (5); the temporary retaining wall (4) is removed before the construction of the late passage, and during the construction of the late passage, the waterproof layer (5) on the soil-facing side of the early passage and the waterproof layer (5) on the soil-facing side of the late passage are connected as one.
2. The underground connecting passage constructed in phases according to claim 1 is characterized by: The transition section bottom plate (21) and the preliminary channel bottom plate (12) are integrally formed, and the transition section outer wall (22) and the preliminary channel outer wall (13) are integrally formed.
3. The underground connecting passage constructed in phases according to claim 1 is characterized by: The end of the preliminary channel top plate (11) is provided with a thickened portion (111), the thickened portion (111) is located outside the preliminary channel top plate (11) and is integrally formed with the preliminary channel top plate (11), and the temporary retaining wall (4) is connected to the thickened portion (111).
4. The underground connecting passage constructed in phases according to claim 1 is characterized by: The distance between the temporary retaining wall (4) and the end of the main section (1) is not less than the outward extension length of the embedded waterstop (3).
5. The underground connecting passage constructed in phases according to claim 1 is characterized by: The preliminary channel top plate (11), the preliminary channel outer walls (13) on both sides and the embedded waterstop (3) in the preliminary channel bottom plate (12) are interconnected to form a continuous waterstop.
6. The underground connecting passage constructed in phases according to claim 1 is characterized by: A concrete cushion layer (6) is provided at the bottom of the preliminary channel.
7. The underground connecting passage constructed in phases according to claim 1 is characterized by: The width of the deformation joint (10) is not less than 20 mm.
Citation Information
Patent Citations
Underground passage reserved port structure constructing method without later-stage excavation
CN107558501A