Construction method for indoor ski field slide way coil pipe to penetrate through waterproof layer joint

Abstract

The invention discloses a construction method for an indoor ski field slideway coil pipe to penetrate through a waterproof layer node, which comprises a cold storage plate fixed on a base layer; the hot coil pipe is detachably fixed to the surface of the cold storage plate through a fixing piece, a coil pipe protection layer is arranged on one side of the hot coil pipe, and extruded sheets are arranged on the surfaces of the coil pipe protection layer and the base layer; the concrete encapsulation body wraps the node, penetrating through the waterproof layer, of the hot coil pipe, and a pipe ditch is formed in the end, close to the concrete encapsulation body, of the protective layer; the waterproof coiled material layer covers the outer side of the concrete encapsulation body and wraps along the vertical face curled edge of the concrete encapsulation body, and the coiled pipe protection layer locally encapsulates the hot coiled pipe synchronously during construction, so that the waterproof coiled material is easier to construct, the use of a sleeve is reduced, heat preservation and plugging are reduced, the whole construction process is simple and convenient to operate, and the construction efficiency is improved. The cold bridge phenomenon and the hidden danger of cold leakage caused by improper installation and plugging of the sleeve in the traditional process are effectively avoided.

Description

Technical Field

[0001] This application relates to the technical field of waterproof layer construction for pipe coils. ， In particular, it relates to a construction method for the joint of the indoor ski slope coil penetrating the waterproof layer. Background Technology

[0002] Indoor ski resorts, as special buildings integrating entertainment and sports, require their core functional area, the "slide level," to maintain a consistently low temperature environment, typically between -3°C and -5°C, and to withstand the impact loads from skiers. Therefore, extremely high requirements are placed on the waterproofing and insulation performance of the slide level. The heating coil system laid inside the slide level is a key component for maintaining temperature stability. This system regulates the temperature of the slide level through the circulation of media within the coils, preventing structural damage caused by melting snow and ice. The waterproof layer, on the other hand, is the core barrier preventing condensation and meltwater from seeping into the structural layers, thus preventing steel corrosion and insulation failure.

[0003] Currently, the traditional construction process for this node in the industry mainly adopts the "sleeve-assisted method". The specific method is as follows: add a metal or plastic sleeve to the outside of the hot coil pipe, fix the sleeve to the structural layer, roll the waterproof membrane to the outside of the sleeve, and insulate and seal the gap between the sleeve and the riser.

[0004] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: First, the installation of the sleeve requires precise positioning, and the wrapping of the waterproof membrane at the sleeve is difficult, requiring multiple cutting and pasting, which is a complicated process. Second, the metal sleeve forms a heat conduction channel, which is prone to cold bridging in low-temperature environments, leading to energy loss and condensation risks. Third, the junction between the sleeve and the waterproof layer is a high-risk area for leakage, and inadequate sealing or material shrinkage may lead to seal failure. Therefore, we propose a construction method for the joint of the indoor ski resort slide coil penetrating the waterproof layer. Summary of the Invention

[0005] This application provides a construction method for the connection of indoor ski slope coils through the waterproof layer. During the construction of the protective layer, the hot coil is partially wrapped simultaneously, which makes the waterproof membrane easier to install, reduces the use of sleeves, and reduces the need for insulation sealing. The entire construction process is simple to operate and effectively avoids the cold bridging phenomenon and cold leakage risk caused by improper sleeve installation and sealing in traditional processes.

[0006] This application provides a node for indoor ski slope coil penetration through a waterproof layer, including a cold storage panel, fixed to the base layer; The heating coil is detachably fixed to the surface of the cold storage panel by fasteners, and a coil protective layer is provided on one side of the heating coil. The surface of the coil protective layer and the base layer is provided with extruded board. A concrete enclosure is provided to cover the node where the heat coil penetrates the waterproof layer, and a pipe trench is provided at one end of the coil protective layer near the concrete enclosure. A waterproof membrane layer is applied to the outside of the concrete enclosure and rolled along the vertical surface of the concrete enclosure.

[0007] Furthermore, the fastener is a U-shaped clamp made of stainless steel, and its inner diameter is adapted to the outer diameter of the hot coil.

[0008] Furthermore, the concrete encapsulation body and the coil protective layer are integrally cast concrete structures.

[0009] Furthermore, the concrete enclosure has a rectangular cross-section with dimensions of 150mm × 150mm, and its height is higher than that of the pipe trench.

[0010] Furthermore, the rolled edge height of the waterproof membrane layer is consistent with the vertical height of the concrete enclosure, and overlaps and seals with the surrounding waterproof layer.

[0011] A construction method for the joint of indoor ski slope coil penetrating the waterproof layer, including:

[0012] Step 1: After the construction of the hot coil layer is completed, fix the hot coil to the cold storage panel without adding a sleeve. The hot coil is located below the upper waterproof membrane. Step 2: When constructing the protective layer for the heat coil, simultaneously encapsulate a local area of ​​the heat coil with concrete, i.e., pour a concrete encapsulation body. The concrete is C fine aggregate concrete, and the cross-sectional dimensions of the concrete encapsulation body are 150mm×150mm. The height of the concrete encapsulation body 3 is higher than the pipe trench, and a polyurethane sealing layer is provided between the encapsulated area of ​​the concrete encapsulation body and the heat coil. Step 3: After the concrete encapsulation layer has cured to more than 70% of the design strength, construct the waterproof membrane layer. The waterproof membrane is an SBS modified bitumen waterproof membrane with a thickness of not less than 4mm. During construction, roll the waterproof membrane along the outer edge of the concrete encapsulation layer. The rolled edge height is higher than the pipe trench by mm, and the rolled edge is sealed by hot air welding with a welding width of not less than 10mm.

[0013] Furthermore, in step one, the hot coil is detachably fixed to the cold storage plate by U-shaped clips, the inner diameter of which is adapted to the outer diameter of the hot coil, and the spacing between the U-shaped clips is no more than 500mm.

[0014] Furthermore, in step two, the concrete encapsulation body and the protective layer are cast and formed simultaneously in one go.

[0015] Furthermore, the rolled edge height of the waterproof membrane described in step three is higher than the exposed vertical height of the concrete enclosure.

[0016] Furthermore, before applying the waterproof membrane in step three, the surface of the concrete enclosure needs to be treated. First, use a high-pressure water gun to remove surface dust and debris. After the surface dries, apply a primer.

[0017] The technical solution provided in this application has at least the following technical effects or advantages: This application makes the waterproof membrane easier to install and reduces the use of sleeves by simultaneously encasing the heat coil with concrete during the construction of the protective layer. Furthermore, the simultaneous construction of the heat coil protective layer on the structural surface reduces construction steps, not only reducing insulation and sealing, but also simplifying the entire construction process. This effectively avoids the cold bridging phenomenon and cold leakage risks caused by improper sleeve installation and sealing in traditional processes. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the entire application; Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Cold storage panel; 2. Hot coil; 3. Concrete enclosure; 4. Waterproof membrane layer; 5. Coil protection layer; 6. Fasteners; 7. Extruded polystyrene board; 8. Pipe trench; 10. Anti-collision pad. Detailed Implementation

[0020] This application discloses a construction method for the joint of indoor ski slope coil penetrating the waterproof layer. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To better understand the above technical solution, the following will provide a detailed explanation of the above technical solution in conjunction with the accompanying drawings and specific implementation methods.

[0022] Example 1

[0023] Reference Figures 1-2A waterproof layer penetration node for indoor ski slope coils includes a cold storage panel 1 fixed to a base layer. The base layer is a structural surface poured on the ground, which is existing technology and will not be described in detail here. A hot coil 2 is detachably and fixedly connected to the surface of the cold storage panel 1 via a fastener 6. A coil protective layer 5 is provided on one side of the hot coil 2. An extruded polystyrene board 7, preferably XPS extruded polystyrene board, is provided on the surface of the coil protective layer 5 and the base layer. A concrete encapsulation body 3 covers the penetration node of the hot coil 2. A pipe trench 8 is provided at one end of the coil protective layer 5 near the concrete encapsulation body 3. A waterproof membrane layer 4 is covered on the outside of the concrete encapsulation body 3. The waterproof membrane layer 4 is at the same height as the vertical surface of the concrete encapsulation body 3. To ensure safety during skiing, anti-collision pads 10 are installed at the junction of the concrete encapsulation body 3, the coil protective layer 5, and the snow layer to protect skiers from the dangers caused by collisions during skiing. The fastener 6 is a U-shaped clamp plate made of stainless steel. Its inner diameter is adapted to the outer diameter of the hot coil 2, and the spacing between the U-shaped clamps is no more than 500mm.

[0024] Reference Figures 1-2 The concrete encapsulation body 3 and the coil protective layer 5 are integrally cast concrete structures; Reference Figures 1-2 The concrete enclosure 3 has a rectangular cross-section with dimensions of 150mm × 150mm, and its height is higher than that of the trench 8. Preferably, its height is more than 250mm higher than that of the trench 8 foundation.

[0025] The rolled edge height of the waterproof membrane layer 4 is higher than the vertical height of the concrete enclosure 3, and it overlaps and seals with the surrounding waterproof layer.

[0026] When constructing the connection point where the indoor ski slope coil penetrates the waterproof layer, the following preparatory work must be carried out first: Preparation 1. Material preparation Structural materials: DN38 seamless steel pipe, stainless steel U-shaped clamps (preferably with an inner diameter of 44mm to match the outer diameter of the steel pipe), C30 fine aggregate concrete (containing antifreeze, suitable for low-temperature construction). Thermal insulation and waterproofing materials: 60mm thick extruded polystyrene insulation board, 4mm thick SBS modified bitumen waterproof membrane, polyurethane sealant (low temperature resistant type), epoxy anti-rust paint (dry film thickness ≥60μm), modified bitumen primer. Auxiliary materials: dry-mixed mortar, aluminum alloy protective cover (height 280mm), M8 expansion bolts, geotextile (unit area mass ≥200g / ㎡).

[0027] 2. Equipment Preparation

[0028] Processing equipment: rebar cutter, concrete mixer, sander; Construction equipment: high-pressure water gun (water pressure ≥1.0MPa), hot air welding machine (temperature adjustment range 150-250℃), level, measuring tape (accuracy ±1mm); Maintenance equipment: watering can, heat insulation film (flame retardant type).

[0029] 3. Personnel preparation

[0030] The facility is staffed with 4 certified waterproofing workers, 3 concrete workers, 2 pipe fitters, and 1 quality inspector. Before construction, a technical briefing should be conducted to clarify the key points of operation, quality standards, and safety precautions for each process. Step 1: Grassroots Preparation and Positioning After the structural layer construction is completed and accepted, the cold storage panel 1 (insulation board) is laid first. According to the design drawings, the total station is used to accurately locate the position of the heat coil 2 penetrating the waterproof layer. Mark it on the cold storage panel 1. The cold storage panel 1 should be laid flat and firm with tight joints. Step 2: Installation and fixing of heating coil 2 Install the heat coil 2 vertically at the marked position according to the designed elevation, and use the fastener 6 (U-shaped clamp) to directly fix the heat coil 2 to the surface of the cold storage panel 1. When fixing, ensure that the verticality deviation of the heat coil 2 does not exceed 2mm and the spacing between fixing points is not greater than 1.5 meters. Compared with the traditional method, this step completely omits the installation of the metal sleeve, which not only reduces the construction steps but also reduces the installation steps and material costs of the sleeve, making it convenient for on-site construction. Step 3: Simultaneous Encapsulation Construction During the concrete pouring of the protective layer 5 for the hot coil, the area where the hot coil 2 penetrates the waterproof layer is simultaneously encapsulated. First, erect a 150mm×150mm square formwork, with the formwork height being more than 250mm higher than the foundation of the pipe trench. Use fine stone concrete of the same grade as the protective layer 5 of the coil for pouring. Use an immersion vibrator to fully vibrate the concrete to ensure that it is dense. After the formwork is removed, water curing is carried out for no less than 7 days. It should be noted that: before encapsulation, the oxide layer on the surface of the heat coil 2 was sanded with 100-grit sandpaper, and epoxy anti-rust paint was applied (the dry film thickness was tested to be 65μm, which meets the requirement of not less than 60μm). A 6mm thick polyurethane sealing layer was also placed between the heat coil 2 and the concrete. Step 4: Waterproofing layer construction After the concrete enclosure reaches the design strength, the waterproof membrane will be installed. After the concrete encapsulation body has been cured to the standard, use a high-pressure water gun (1.0MPa) to rinse off the surface dust and loose particles. The rinsing direction is the same as the direction of the roll material laying. After drying, use the drying method to test the surface moisture content, and the result is 6% (lower than the upper limit of 9%). Apply the modified asphalt base treatment agent evenly with a long-handled brush, with a coating thickness of about 0.5 mm. The coating area extends 300 mm beyond the joint area, ensuring no missed areas, drips, or accumulation. Allow it to stand for 6 hours until completely dry (until it is no longer sticky to the touch). After cleaning, the waterproof membrane is laid using the hot-melt method. First, an additional layer of membrane (300mm×300mm thick, with the same thickness as the main membrane) is laid in the joint area. The center of the additional layer of membrane is aligned with the center of the heat coil 2, and the perimeter is firmly bonded by hot-melt without any hollow areas. Then, the main waterproof membrane is laid. The height of the rolled edge of the waterproof membrane on the concrete enclosure 3 should be completely consistent with the height of the concrete enclosure 3, so that the rolled edge on the concrete enclosure 3 completely covers the concrete enclosure 3. The membrane is rolled along the outer side of the concrete enclosure 3, with the rolled edge height precisely controlled at 250mm (measured point by point with a tape measure). During the rolling process, a hot air welding machine (temperature set to 200℃) is used to weld and seal the membrane overlap and rolled edge areas. The welding width is 15mm (exceeding the minimum requirement of 10mm). The welding method is "first spot welding for fixation, then continuous welding" to avoid membrane displacement. After welding, the membrane is pressed with a flat shovel to ensure that there are no voids or gaps at the overlap. A 500g steel ball is dropped freely from a height of 1m, and the membrane is undamaged. An aluminum alloy protective cover (250mm high) is installed on the outer side of the rolled edge area and fixed with M8 expansion bolts at a bolt spacing of 280mm (less than the 300mm requirement). Finally, double sealing treatment is applied to the waterproof membrane joints to ensure waterproof reliability. This application preferably selects at least 4 bolts for each protective cover. After the bolts are installed, polyurethane sealant is applied around the bolt holes to seal them tightly and prevent rainwater from seeping in.

[0031] It is also important to note the following safety procedures during construction: The construction site shall be marked with clear safety warning signs (such as "Caution: Slippery Floor", "No Open Flames", "Wear a Safety Helmet", etc.), and construction workers shall wear safety helmets, non-slip shoes, waterproof gloves and other protective equipment. Before hot work (such as pipe welding), clear away flammable materials in the surrounding area (such as geotextile, roll material, etc.), equip with dry powder fire extinguishers (no less than 2 per work point), assign a dedicated person to monitor the fire, and leave only after the hot work is completed and it is confirmed that there is no fire hazard. Before using a high-pressure water gun, check the water pipe connection for sealing to avoid injury from high-pressure water spray; keep hot air welding machines away from flammable materials when in use, and turn off the power and place them in a safe area after the operation is completed. Walking on unsecured insulation boards is strictly prohibited. Scaffolding boards should be laid in construction access areas to ensure safe passage.

[0032] 2. Environmental Protection Measures

[0033] Dust reduction measures (such as setting up dust-proof sheds and sprinkling water) should be taken during concrete mixing to avoid dust pollution. Construction waste (such as waste sandpaper, waste sealant buckets, waste roll material scraps, etc.) should be collected separately and transported to designated waste disposal points. Random disposal is strictly prohibited. A sedimentation tank is set up at the construction site. Wastewater from high-pressure water jet washing is discharged after sedimentation to avoid silt contaminating the drainage system. Use low-volatility, environmentally friendly materials (such as water-based release agents and environmentally friendly sealants) to reduce harmful gas emissions and improve the construction site environment.

[0034] Step 5: Quality Inspection and Acceptance

[0035] After the construction of this node was completed, a water tightness test (water level 100mm, continuous for 24 hours) was conducted to verify its quality. 1. Process Inspection Hot coil 2 fixing: Randomly check 1 out of every 10 nodes to inspect the spacing of the U-shaped clamps and the straightness of the hot coil 2. The pass rate must reach 100%. Concrete encapsulation: Inspect the encapsulation dimensions, concrete strength, and surface flatness; any substandard joints must be removed and reconstructed. Waterproofing construction: The waterproofing effect is tested by water storage test. The water storage height of each node is 100mm, and the test is continued for 24 hours. No leakage is considered as qualified.

[0036] 2. Final Acceptance

[0037] Appearance inspection: There are no cracks, hollows, or leaks in the joint area; the edges of the roll material are flat and the protective cover is firmly fixed. Performance testing: The temperature distribution in the node area was detected using an infrared thermal imager, and no obvious cold bridging phenomenon was found (temperature deviation ≤2℃). Documentation Acceptance: Organize materials certificates of conformity, construction records, test reports, and other documents to form a complete acceptance file.

[0038] Example 2

[0039] Based on Example 1, this preferred embodiment further optimizes the following technical details: Regarding material selection: Cold storage panel 1 (insulation panel) is made of B1 grade flame retardant polyurethane and has a thickness of not less than 100mm. The waterproof membrane is made of TPO material with excellent low-temperature resistance and has a thickness of not less than 1.5mm; The concrete used is C30 fine aggregate concrete, with antifreeze and waterproofing agents added; Key points for construction quality control: Dimensional accuracy control: The cross-sectional dimensional deviation of the concrete encapsulation body 3 is controlled within ±5mm, and the height deviation is controlled within ±10mm. Waterproof joint treatment: An additional layer of waterproof membrane is added at the external corner of the concrete enclosure 3, with a width of not less than 250mm; Finished product protection: Avoid stepping on or piling heavy objects on the finished product within 24 hours after construction is completed.

[0040] A construction method for the joint of indoor ski slope coil penetrating the waterproof layer includes: Step 1: After the construction of the second layer of the hot coil is completed, fix the hot coil 2 to the cold storage panel 1 without adding a sleeve. The hot coil 2 is located below the upper waterproof membrane. Step 2: When constructing the protective layer 5 of the heat coil 2, simultaneously encapsulate a local area of ​​the heat coil 2 with concrete, i.e., pour a concrete enclosure 3. The concrete is C30 fine aggregate concrete. The cross-sectional dimensions of the concrete enclosure 3 are 150mm×150mm. The height of the concrete enclosure 3 is more than 250mm higher than the foundation of the pipe trench 8. A polyurethane sealing layer with a thickness of 5mm-8mm is set between the encapsulated area of ​​the concrete enclosure 3 and the heat coil 2. Step 3: After the concrete encapsulation layer has cured to more than 70% of the design strength, construct the waterproof membrane layer. The waterproof membrane is an SBS modified bitumen waterproof membrane with a thickness of not less than 4mm. During construction, roll the waterproof membrane along the outer edge of the concrete encapsulation body 3. The rolled edge height is higher than 8250mm above the pipe trench. The rolled edge is sealed by hot air welding with a welding width of not less than 10mm. In step one, the heating coil 2 is detachably fixed to the cold storage plate 1 by U-shaped clips, the inner diameter of which is adapted to the outer diameter of the heating coil 2, and the spacing between the U-shaped clips is no more than 500mm. In step two, the concrete encapsulation body 3 and the coil protective layer 5 are cast and formed simultaneously in one go. The height of the rolled edge of the waterproof membrane mentioned in step three is higher than the height of all exposed facades of the concrete enclosure 3; Before applying the waterproof membrane in step three, the surface of the concrete enclosure 3 needs to be treated. Use a high-pressure water gun to remove surface dust and debris. After the surface is dry and the moisture content is no more than 9%, apply a layer of primer.

[0041] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0042] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A joint for the penetration of a waterproof layer through a pipe in an indoor ski slope, characterized in that, include: Cold storage panel (1), fixed to the base layer; The heating coil (2) is detachably fixed to the surface of the cold storage plate (1) by means of fastener (6), and a coil protective layer (5) is provided on one side of the heating coil (2), and an extruded board (7) is provided on the surface of the coil protective layer (5) and the base layer. A concrete enclosure (3) is wrapped around the waterproof layer node of the hot coil (2), and a pipe trench (8) is provided at one end of the protective layer (5) near the concrete enclosure (3). A waterproof membrane layer (4) is applied to the outside of the concrete enclosure (3) and rolled along the vertical surface of the concrete enclosure (3).

2. The indoor ski resort slide coil penetration waterproof layer node as described in claim 1, characterized in that, The fastener (6) is a U-shaped clamp, which is made of stainless steel and its inner diameter is adapted to the outer diameter of the hot coil (2).

3. The indoor ski resort slide coil penetration waterproof layer node as described in claim 1, characterized in that, The concrete encapsulation body (3) and the coil protective layer (5) are integrally cast concrete structures.

4. The indoor ski resort slide coil penetration waterproof layer node as described in claim 1, characterized in that, The concrete enclosure (3) has a rectangular cross-section with dimensions of 150mm × 150mm and a height higher than the trench (8).

5. The indoor ski resort slide coil penetration waterproof layer node as described in claim 1, characterized in that, The rolled edge height of the waterproof membrane layer (4) is consistent with the vertical height of the concrete cover body (3) and overlaps and seals with the surrounding waterproof layer.

6. A construction method for the joint of the indoor ski resort slide coil penetrating the waterproof layer as described in any one of claims 1-5, characterized in that, include: Step 1: After the construction of the heat coil (2) layer is completed, fix the heat coil (2) on the cold storage panel (1). The heat coil (2) is located at the lower part of the upper waterproof membrane. Step 2: When constructing the coil protective layer (5) of the hot coil (2), the local area of ​​the hot coil (2) is simultaneously encased in concrete to form a concrete enclosure (3). The concrete is C30 fine stone concrete. The cross-sectional dimensions of the concrete enclosure (3) are 150mm×150mm. The height of the concrete enclosure (3) is higher than that of the pipe trench (8). A polyurethane sealing layer is provided between the enclosure area of ​​the concrete enclosure (3) and the hot coil (2). Step 3: After the concrete sealing layer has cured to more than 70% of the design strength, construct the waterproof membrane layer. The waterproof membrane is SBS modified bitumen waterproof membrane with a thickness of not less than 4mm. During construction, roll the waterproof membrane along the outside of the concrete sealing layer. The rolled edge height is higher than the pipe trench (8). The rolled edge is sealed by hot air welding with a welding width of not less than 10mm.

7. The construction method for the joint of the indoor ski resort slide coil penetrating the waterproof layer as described in claim 6, characterized in that, In step one, the hot coil (2) is detachably fixed to the cold storage plate (1) by U-shaped clips, the inner diameter of which is adapted to the outer diameter of the hot coil (2), and the spacing between the U-shaped clips is no more than 500mm.

8. The construction method for the joint of the indoor ski resort slide pipe penetrating the waterproof layer as described in claim 6, characterized in that, The concrete encapsulation body (3) and the coil protective layer (5) described in step two are cast and formed simultaneously in one go.

9. The construction method for the joint of the indoor ski resort slide coil penetrating the waterproof layer as described in claim 6, characterized in that, The height of the rolled edge of the waterproof membrane described in step three is higher than the height of the exposed facade of the concrete enclosure (3).

10. The construction method for the joint of the indoor ski resort slide coil penetrating the waterproof layer as described in claim 6, characterized in that, Before the waterproof membrane is applied in step three, the surface of the concrete enclosure (3) needs to be treated. First, use a high-pressure water gun to remove surface dust and debris. After the surface is dry, apply a layer of base treatment agent.

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