Waterproof structure at junction of underground passage and outer wall
By using waterproof structures of drainage blind pipes and expansion water stop strips at the junction of the underground passage and the exterior wall, the water leakage problem is solved, the secondary waterproof effect is achieved, the probability of water leakage is reduced, and the safety and stability of the underground passage is ensured.
Patent Information
- Application Number
- CN202422421119.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-02
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-02
AI Technical Summary
Water leakage is prone to occur at the junction of underground passages and exterior walls, which affects traffic and increases maintenance costs.
The waterproof structure of reinforced concrete roof panels, wall panels, drainage blind pipes and expansion water stop strips is adopted. The drainage blind pipes are drained to the drainage ditch. The expansion water stop strips block the gaps and prevent moisture from penetrating, realizing first- and second-level waterproof treatments.
It effectively reduces the probability of water leakage at the junction of underground passages and exterior walls, provides reliable waterproofing guarantees, and ensures the safe and stable operation of underground passages.
Smart Images
Figure CN223189744U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground passage construction, in particular to a waterproof structure at the junction of an underground passage and an outer wall. Background Art
[0002] An underground passage is a transportation facility built underground. It's typically constructed from solid materials like reinforced concrete and has a main structure consisting of a roof, floor, and side walls. Underground passages primarily provide safe and convenient passageways for pedestrians and vehicles, avoiding interference with surface traffic. Located underground, they are often equipped with waterproofing and ventilation systems to ensure dryness and air circulation within the passage. In cities, underground passages can effectively alleviate traffic pressure, connect different areas such as commercial districts, residential areas, and subway stations, improve urban transportation efficiency and space utilization, and greatly facilitate people's travel and activities. They also help shape a city's positive image and optimize its functional layout.
[0003] In areas with abundant groundwater, underground passages are often directly connected to exterior walls after construction. Due to the long-term effects of groundwater, the joints between the underground passages and the exterior walls are prone to water leakage after prolonged use. This not only affects the normal passageway, causing inconvenience for people, but also increases the cost and difficulty of subsequent maintenance.
[0004] Given that underground tunnels in areas with abundant groundwater are prone to water leakage, which seriously affects the tunnel structure, normal traffic flow, and increases maintenance costs, addressing this issue is urgent. Promptly addressing this issue can ensure the safe and stable operation of underground tunnels, improve the reliability of urban transportation, and provide better protection for people's travel. Utility Model Content
[0005] The purpose of the utility model is to provide a waterproof structure at the junction of an underground passage and an outer wall, aiming to solve the technical problems in the above-mentioned background technology.
[0006] The technical solution of the present utility model is achieved as follows:
[0007] The technical solution of this application provides a waterproof structure at the junction of an underground passage and an exterior wall, comprising:
[0008] reinforced concrete top slab;
[0009] A reinforced concrete wall panel is provided at one end of the reinforced concrete top panel;
[0010] Drainage blind pipe, used to connect the drainage ditch of the above-mentioned underground passage;
[0011] Wherein, the drainage blind pipe is arranged at the angle between the reinforced concrete top plate and the reinforced concrete wall plate, and is located above the reinforced concrete top plate; and
[0012] The expansion water stop strip is arranged at the joint between the reinforced concrete top plate and the reinforced concrete wall plate.
[0013] A further technical solution is that the steel bars of the reinforced concrete top plate and the steel bars of the reinforced concrete wall plate are connected together with reinforcing steel bars.
[0014] A further technical solution is that there are multiple reinforcing steel bars.
[0015] A further technical solution is that the drainage blind pipe is annular and is used to be installed on the underground passage.
[0016] A further technical solution is that there are multiple drainage blind pipes, and the multiple drainage blind pipes are arranged in sequence along the axial direction of the underground passage.
[0017] A further technical solution is that the reinforced concrete top plate and the reinforced concrete wall plate are butted together to form a butt joint;
[0018] Wherein, the above-mentioned expansion water stop strip is arranged along the extension direction of the above-mentioned butt joint, and both ends extend to the two sides of the above-mentioned butt joint respectively.
[0019] A further technical solution is that there are multiple expansion waterstop strips, and the multiple expansion waterstop strips are arranged at intervals along the radial direction of the underground passage.
[0020] Compared with the prior art, the technical solution of the present invention has at least the following advantages or beneficial effects:
[0021] The waterproof structure of the present application plays an important role when the underground passage and the outer wall are connected. The drainage blind pipe has a strong drainage effect, which can guide the water in the soil layer to the drainage ditch for discharge, effectively preventing the water from converging at the joint of the reinforced concrete top plate and the reinforced concrete wall plate, and successfully achieving the first-level waterproof treatment of the joint. At the same time, the expansion water stop strip is a water-stop material with excellent water-swelling performance. If water enters the gap through the drainage blind pipe, it will expand rapidly and tightly block the gap to prevent further water penetration. It can effectively prevent groundwater from seeping into the interior of the underground passage, and achieve the second-level waterproof treatment of the joint. The waterproof structure of the present application effectively realizes the second-level waterproofing at the junction of the underground passage and the outer wall, greatly reducing the probability of water leakage. It has strong practicality and provides reliable protection for the waterproofing of underground projects. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1 This is a structural schematic diagram of a waterproof structure at the junction of an underground passage and an outer wall in an embodiment of the present utility model.
[0024] Icon: 100-reinforced concrete top plate, 200-reinforced concrete wall panel, 300-drainage blind pipe, 400-reinforced steel bar, 500-expansion water stop. DETAILED DESCRIPTION Example
[0025] Please refer to Figure 1. An embodiment of the present application provides a waterproof structure at the junction of an underground passage and an exterior wall. The structure mainly includes a reinforced concrete top plate 100, a reinforced concrete wall panel 200, a drainage blind pipe 300 and an expansion water stop strip 500. One end of the reinforced concrete top plate 100 is connected to the top plate of the underground passage, and the two are integrally formed by casting. This connection method can greatly improve the sealing of the joint and effectively prevent moisture from seeping in from the joint. The end of the reinforced concrete top plate 100 away from the underground passage is connected to the reinforced concrete wall panel 200. The end of the reinforced concrete wall panel 200 away from the reinforced concrete top plate 100 is used to connect to the exterior wall. The two are preferably integrally formed by casting, so that the structural stability after forming can be better.
[0026] Furthermore, a drainage blind pipe 300 is provided at the outer angle of the butt joint between the reinforced concrete top plate 100 and the reinforced concrete wall plate 200. The drainage blind pipe 300 is connected to the drainage ditch of the underground passage and its function is to drain water from the soil layer. This can prevent water in the soil layer from penetrating into the butt joint between the reinforced concrete top plate 100 and the reinforced concrete wall plate 200, thereby reducing the occurrence of water seepage. In addition, an expansion water stop strip 500 is also provided at the butt joint between the reinforced concrete top plate 100 and the reinforced concrete wall plate 200. The expansion water stop strip 500 is a water-stop material with excellent water-expanding properties. When water enters the gap, it will expand rapidly, tightly blocking the gap and preventing further water penetration. This can effectively prevent groundwater from seeping into the interior of the underground passage and has strong practicality.
[0027] The waterproof structure of the present application plays an important role when the underground passage and the outer wall are connected. The drainage blind pipe 300 has a strong drainage effect, which can guide the water in the soil layer to the drainage ditch for discharge, effectively preventing the water from converging at the joint of the reinforced concrete top plate 100 and the reinforced concrete wall panel 200, and successfully achieving the first-level waterproof treatment of the joint. At the same time, the expansion water stop strip 500 is a water-stop material with excellent water-swelling performance. If water enters the gap through the drainage blind pipe 300, it will expand rapidly and tightly block the gap, preventing further water penetration, and can effectively prevent groundwater from seeping into the interior of the underground passage, achieving the second-level waterproof treatment of the joint. The waterproof structure of the present application effectively achieves the second-level waterproofing at the junction of the underground passage and the outer wall, greatly reducing the probability of water leakage. It has strong practicality and provides reliable protection for the waterproofing of underground projects.
[0028] In some embodiments of the present invention, the steel bars of the reinforced concrete top plate 100 and the steel bars of the reinforced concrete wall plate 200 are connected to a reinforcing steel bar 400 .
[0029] In the above embodiment, the design of the reinforcing steel bar 400 is crucial. It is welded together with the steel bars of the reinforced concrete top plate 100 and the reinforced concrete wall panels 200, greatly improving the stability of the connection between the reinforced concrete top plate 100 and the reinforced concrete wall panels 200, and providing a strong guarantee for the stability of the overall structure.
[0030] In some embodiments of the present invention, there are multiple reinforcing steel bars 400 .
[0031] In the above embodiment, multiple reinforcing bars 400 are arranged along the same circumference of the underground passage, forming a steel bar group, further enhancing the stability of the connection between the two. Specifically, there are two steel bar groups, spaced apart along the radial direction of the underground passage. This design further strengthens the connection between the reinforced concrete top plate 100 and the reinforced concrete wall panel 200, significantly improving stability and providing more reliable support for the waterproof structure at the junction of the underground passage and the exterior wall, ensuring that it can effectively perform its waterproofing function during use.
[0032] In some embodiments of the present invention, the drainage blind pipe 300 is annular and is used to be sleeved on the underground passage.
[0033] In the above embodiment, the drainage blind pipe 300 is designed in an annular shape. This design increases the contact area between the drainage blind pipe 300 and the soil layer, allowing water in the soil layer to flow into the drainage blind pipe 300 from multiple directions. The water is then drained into the drainage ditch. This annular drainage blind pipe 300 has the advantage of good drainage and can more effectively prevent water from seeping into the joint.
[0034] In some embodiments of the present invention, there are multiple drainage blind pipes 300 , and the multiple drainage blind pipes 300 are arranged sequentially along the axial direction of the underground passage.
[0035] In the above embodiment, the design of multiple drainage blind pipes 300 further enhances the drainage effect of the present application. In actual design, connectors can be provided between adjacent drainage blind pipes 300 to connect multiple drainage blind pipes 300 into one, thereby improving the structural stability of the present application and ensuring more reliable waterproofing at the junction of the underground passage and the exterior wall.
[0036] In some embodiments of the present invention, the reinforced concrete top plate 100 and the reinforced concrete wall plate 200 are butted together to form a butt joint;
[0037] The expansion water stop strip 500 is arranged along the extension direction of the butt joint, and both ends extend to both sides of the butt joint respectively.
[0038] In the above embodiment, the expansion waterstop 500 extends to both sides of the joint, achieving full coverage along the length of the joint. This design can better prevent water from penetrating through the joint, greatly improving the water-proof performance of the joint between the reinforced concrete top plate 100 and reinforced concrete wall panel 200, and enhancing the reliability of the waterproof structure.
[0039] In some embodiments of the present invention, there are multiple expansion waterstop strips 500 , and the multiple expansion waterstop strips 500 are spaced apart along the radial direction of the underground passage.
[0040] In the above embodiment, the design of multiple expansion waterstops 500 can further improve the water seepage resistance at the joint between the reinforced concrete top plate 100 and the reinforced concrete wall panel 200. The specific number of expansion waterstops 500 can be adaptively selected based on the actual situation of those skilled in the art, thereby flexibly adjusting the waterproof performance of the joint to ensure a better waterproof effect.
[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A waterproof structure at the junction of an underground passage and an outer wall, characterized in that: include: reinforced concrete top slab (100); A reinforced concrete wall panel (200) is provided at one end of the reinforced concrete top panel (100); A drainage blind pipe (300) for connecting to the drainage ditch of the underground passage; The drainage blind pipe (300) is arranged at the angle between the reinforced concrete top plate (100) and the reinforced concrete wall plate (200), and is located above the reinforced concrete top plate (100); as well as An expansion water stop strip (500) is provided at the joint between the reinforced concrete top plate (100) and the reinforced concrete wall plate (200).
2. The waterproof structure at the junction of an underground passage and an outer wall according to claim 1, characterized in that: The steel bars of the reinforced concrete top plate (100) and the steel bars of the reinforced concrete wall plate (200) are connected together with a reinforcing steel bar (400).
3. The waterproof structure at the junction of an underground passage and an outer wall according to claim 2, characterized in that: The number of the reinforcing steel bars (400) is multiple.
4. The waterproof structure at the junction of an underground passage and an outer wall according to claim 1, characterized in that: The drainage blind pipe (300) is annular and is used for being sleeved on the underground passage.
5. The waterproof structure at the junction of an underground passage and an outer wall according to claim 4, characterized in that: There are multiple drainage blind pipes (300), and the multiple drainage blind pipes (300) are arranged in sequence along the axial direction of the underground passage.
6. The waterproof structure at the junction of an underground passage and an outer wall according to claim 1, characterized in that: The reinforced concrete top plate (100) and the reinforced concrete wall plate (200) are butted together to form a butt joint; Wherein, the expansion water stop strip (500) is arranged along the extension direction of the butt joint, and both ends extend to both sides of the butt joint respectively.
7. The waterproof structure at the junction of an underground passage and an outer wall according to claim 6, characterized in that: There are multiple expansion waterstop strips (500), and the multiple expansion waterstop strips (500) are arranged at intervals along the radial direction of the underground passage.