A method for preventing leakage in basement construction

Abstract

This invention relates to a method for preventing seepage in basement construction. The construction method comprises five steps: organizational setup, technical preparation, compilation of technical documents, implementation, and corrective measures. This invention utilizes a blind drainage system for basement roof slabs and its construction method, employing a combined approach of prevention and drainage. On top of waterproofing, it adds water conveyance and drainage measures. By using HDPE drainage boards combined with the floor finishing layer, a waterproofing effect is achieved, effectively solving the drainage problem on the basement roof slab. Furthermore, it leverages the ability of loose gravel and pebbles to absorb energy from mining subsidence and regulate uneven deformation, ensuring the drainage boards are not easily deformed and guaranteeing their safety. The construction process is simple and convenient. This technology overcomes basement seepage problems, improves construction safety and quality, reduces time costs, and has considerable practical value and economic benefits.

Description

Technical Field

[0001] This invention relates to the field of anti-seepage methods, specifically an anti-seepage method for basement construction. Background Technology

[0002] In recent years, due to tight schedules in the early stages of most projects, the need to rush construction during the basement phase, and various construction-related issues such as misalignment of the post-pouring strip water-stop steel plate, insufficient concrete compaction, inadequate curing time, and substandard secondary finishing, basement floor slab leakage problems have become increasingly common. To improve the living environment of residential communities, basements are increasingly being used as equipment rooms, garages, and shopping malls, enriching their functionality. As the size and area of ​​basements gradually increase, and their functions expand, the difficulty of addressing leakage problems also grows. Therefore, research on basement waterproofing construction technology is crucial. Analyzing and controlling the main factors affecting its safety, quality, and progress can better ensure construction safety and quality. However, due to various shortcomings, such as the current method of using only waterproofing and failing to provide drainage, existing basement waterproofing methods result in long-term water seepage soaking the basement roof slab, affecting its service life and load-bearing capacity, thus hindering its widespread adoption and application. Summary of the Invention

[0003] The purpose of this invention is to provide a method for preventing leakage during basement construction, in order to solve the problems mentioned in the background art. The basement leakage prevention construction technology provided in this application can overcome the basement leakage problem, improve construction safety and quality, reduce time costs, and has significant practical value and economic benefits.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A method for preventing leakage during basement construction, comprising the following five steps: organizational setup → technical preparation → compilation of technical documents → implementation → corrective action.

[0006] Step 1: The project team established a research group and determined the researchers based on the technical requirements for basement drainage board construction and the actual site conditions;

[0007] Step 2: Collect and organize relevant data, establish a BIM model, develop corresponding technical solutions, formulate safeguard measures, and modify relevant technical measures based on the demonstration results through research group discussions and on-site implementation.

[0008] Step 3: Based on the confirmed technical data, the project team will develop an implementation organization design and plan, and formulate personnel allocation, material and equipment plans, and schedule plans;

[0009] Step 4: Implement in-process control and full-process tracking control to ensure work quality;

[0010] (1) Research on the construction technology of laying drainage boards

[0011] 1) Because the rounded convex shape of the hydrophobic board reduces the contact area between the surface layer and the base layer, the load-bearing capacity of the molded concrete is verified by three-dimensional calculation software to ensure that the quality meets the standards.

[0012] 2) By studying the construction process, the final construction method is determined.

[0013] 3) Through research on process control, the key points of construction quality control are determined.

[0014] 4) Use computer technology to build models and simulate the entire operation process to increase the accuracy and feasibility of procedures and processes.

[0015] (2) Construction method for laying waterproof roofing slab

[0016] 1) Base treatment: Inspect and clean the deposits, and clean the base layer by layer to ensure that the base surface is clean;

[0017] 2) Prepare materials: Personnel should check the construction tools and waterproofing equipment and supplies to ensure that all materials are complete;

[0018] 3) Material selection: precast foam board, polyurea elastomer, vegetable oleamide, floor decoration layer;

[0019] 4) Specific operating steps

[0020] Precast foam boards are laid on the basement ceiling, and concrete is poured on top of the precast foam boards. After the concrete dries, polyurea elastomer is laid on top of the concrete, and then vegetable oil amide is evenly brushed on the laid polyurea elastomer to fill the gaps in the polyurea elastomer. After the vegetable oil amide dries, HDPE hydrophobic board is laid with the floor decoration layer through the vegetable oil amide to complete the construction of the waterproof ceiling.

[0021] (3) Construction method for laying drainage boards

[0022] 1) Installation of the drainage board: Drill holes in the drainage board on site. After drilling, lay the drainage board on the waterproof ceiling of the basement and then wrap the drainage board with a non-woven fabric isolation layer.

[0023] 2) Drainage blind drainage molding: After the drainage board is laid, loose gravel and pebbles are used to wrap the drainage board. After the loose gravel and pebbles are wrapped, a non-woven fabric isolation layer is used to wrap the crushed stone layer.

[0024] 3) Drainage board diversion: Water accumulated in the loose gravel and pebbles on the basement roof seeps into the drainage board and is drained through the drainage board.

[0025] Step 5: Collect and analyze data on-site. Analyze influencing factors by collecting data on-site and creating a statistical table of quality defects. Then analyze the reasons for such results and finally formulate and implement countermeasures.

[0026] Furthermore, in step four, the prefabricated foam board includes a foam board, a fiberglass mesh, and a polymer cement mortar layer. A fiberglass mesh is placed on the outer side of the foam board, and a polymer cement mortar layer is applied to the outer side of the fiberglass mesh. The thickness of the foam board is greater than 130 mm, the thickness of the polymer cement mortar layer is 4-6 mm, and the density of the foam board is (500±20) kg / m³. 3 .

[0027] Furthermore, in step four, before pouring concrete, a 3cm thick layer of cement mortar with the same mix ratio as the concrete should be filled at the bottom. The concrete should be uniformly compacted by moving the vibrator point by point in sequence, and the moving distance should not be greater than 1.5 times the vibration radius. After the concrete is poured, natural curing should begin within 8 to 12 hours. After the compressive strength reaches 5MPa, polyurea elastomer should be laid.

[0028] Compared with existing technologies, the beneficial effects of this invention are as follows: This method for preventing seepage in basement construction adopts a combined approach of prevention and drainage, that is, on the basis of waterproofing, water conveyance and drainage measures are added. By using HDPE drainage boards combined with the ground decoration layer, a waterproofing effect is achieved. The construction technology of this HDPE drainage board can meet the load-bearing requirements. This construction technology can overcome the basement seepage problem, improve construction safety and quality, reduce time costs, and has considerable practical value and economic benefits. It reduces later maintenance costs, reduces quality complaints caused by seepage, and maintains the company's image. The basement roof drainage method using seepage blind drainage and its construction method can effectively solve the drainage problem on the basement roof. It also utilizes the ability of loose sand and gravel to absorb the deformation energy of mining subsidence and adjust uneven deformation. The drainage board is also not easily deformed, ensuring the safety of the drainage board. The construction process is simple and convenient. Attached Figure Description

[0029] Figure 1 This is a construction drawing of a method for preventing leakage during basement construction according to the present invention;

[0030] Figure 2 This is a technical roadmap of a method for preventing leakage during basement construction according to the present invention;

[0031] Figure 3This is a distribution diagram of a method for preventing leakage during basement construction according to the present invention. Detailed Implementation

[0032] 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 some embodiments of the present invention, and not all embodiments. 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.

[0033] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example 1

[0035] Please see Figure 1-3 The present invention provides an embodiment of a method for preventing leakage during basement construction, the construction method comprising: organizational setup → technical preparation → compilation of technical documents → implementation → corrective action, characterized by the following five steps:

[0036] Step 1: The project team established a research group and determined the researchers based on the technical requirements for basement drainage board construction and the actual site conditions;

[0037] Step 2: Collect and organize relevant data, establish a BIM model, develop corresponding technical solutions, formulate safeguard measures, and modify relevant technical measures based on the demonstration results through research group discussions and on-site implementation.

[0038] Step 3: Based on the determined technical data, the project team will develop an implementation organization design and plan, and formulate personnel allocation, material and equipment plans and schedule plans. To ensure the quality of the basement waterproofing project, it is crucial to rationally allocate professional construction teams. Personnel allocation should take into account factors such as the quality, experience and skill level of the construction personnel. In building construction, the quality of the construction team is the key to ensuring construction quality.

[0039] Step 4: Implement in-process control and full-process tracking control to ensure work quality;

[0040] (1) Research on the construction technology of laying drainage boards

[0041] 1) Because the rounded convex shape of the hydrophobic board reduces the contact area between the surface layer and the base layer, the load-bearing capacity of the molded concrete is verified by three-dimensional calculation software to ensure that the quality meets the standards.

[0042] 2) By studying the construction process, the final construction method is determined.

[0043] 3) Through research on process control, the key points of construction quality control are determined.

[0044] 4) Use computer technology to build models and simulate the entire operation process to increase the accuracy and feasibility of procedures and processes.

[0045] (2) Construction method for laying waterproof roofing slab

[0046] 1) Base treatment: Inspect and clean the deposits, and clean the base layer by layer to ensure that the base surface is clean;

[0047] 2) Prepare materials: Personnel check construction tools and waterproofing equipment and supplies to ensure that all materials are complete. The final inspection can be carried out using a high-pressure water testing machine. After collecting the acceptance results and feedback information, the completion documents are organized and reviewed.

[0048] 3) Material selection: Precast foam board, polyurea elastomer, vegetable oil amide, and floor decoration layer. In basement waterproofing projects, the selection of materials is the foundation of construction quality. It is necessary to strictly follow relevant national standards and select high-quality, green, environmentally friendly, and durable waterproof materials to ensure construction quality.

[0049] Precast foam boards are lightweight, highly durable, and will not peel or deform.

[0050] Polyurea elastomers are made of synthetic materials and have good waterproof performance and strong toughness. They can adapt to different geological structures, have excellent corrosion resistance, and can withstand heavy loads.

[0051] Plant oleamide is a hydroxy fatty acid ester made from natural plant oils. It has good hydrolytic stability and water resistance, and is effective in sealing holes, preventing moisture, leaks, and noise.

[0052] Loose gravel and pebbles have the ability to absorb the deformation energy of mining subsidence and regulate uneven deformation. The drainage board is also not easily deformed, ensuring the safety of the drainage board. It is simple to operate and convenient to construct.

[0053] 4) Specific operating steps

[0054] Precast foam boards are laid on the basement ceiling, and concrete is poured on top of the precast foam boards. After the concrete dries, polyurea elastomer is laid on top of the concrete, and then vegetable oil amide is evenly brushed on the laid polyurea elastomer to fill the gaps in the polyurea elastomer. After the vegetable oil amide dries, HDPE hydrophobic board is laid with the floor decoration layer through the vegetable oil amide to complete the construction of the waterproof ceiling.

[0055] (3) Construction method for laying drainage boards

[0056] 1) Installation of the drainage board: Drill holes in the drainage board on site. After drilling, lay the drainage board on the waterproof ceiling of the basement and then wrap the drainage board with a non-woven fabric isolation layer.

[0057] 2) Drainage blind drainage molding: After the drainage board is laid, loose gravel and pebbles are used to wrap the drainage board. After the loose gravel and pebbles are wrapped, a non-woven fabric isolation layer is used to wrap the crushed stone layer.

[0058] 3) Drainage board diversion: Water accumulated in the loose gravel and pebbles on the basement roof seeps into the drainage board and is drained through the drainage board.

[0059] Step 5: Collect and analyze data on-site. Analyze influencing factors by collecting data on-site and creating a statistical table of quality defects. Then analyze the reasons for such results and finally formulate and implement countermeasures. Example 2

[0060] In step four, the precast foam board includes a foam board, a fiberglass mesh, and a polymer cement mortar layer. A fiberglass mesh is placed on the outside of the foam board, and a polymer cement mortar layer is applied to the outside of the fiberglass mesh. The thickness of the foam board is greater than 130 mm, the thickness of the polymer cement mortar layer is 4-6 mm, and the density of the foam board is (500±20) kg / m³. 3It has low density and light weight, making it easy to assemble and construct. When pouring concrete, the free fall height of the concrete outlet should be controlled to not exceed 2m to prevent segregation of the falling concrete. Before pouring, a 3cm thick layer of cement mortar with the same mix ratio as the concrete should be filled at the bottom to prevent "rotten roots". The concrete should be uniformly compacted by moving the vibrator point by point in sequence, and the moving distance should not be greater than 1.5 times the vibration radius. After the concrete is poured, a second finishing treatment should be carried out to reduce surface cracks. Natural curing should begin within 8-12 hours after the concrete is poured. Polyurea elastomer should be laid after the compressive strength reaches 5MPa.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A method for preventing leakage during basement construction, comprising the following steps: organizational setup → technical preparation → compilation of technical documents → implementation → corrective action, characterized in that: It includes the following five steps: Step 1: The project team established a research group and determined the researchers based on the technical requirements for basement drainage board construction and the actual site conditions; Step 2: Collect and organize relevant data, establish a BIM model, develop corresponding technical solutions, formulate safeguard measures, and modify relevant technical measures based on the demonstration results through research group discussions and on-site implementation. Step 3: Based on the confirmed technical data, the project team will develop an implementation organization design and plan, and formulate personnel allocation, material and equipment plans, and schedule plans; Step 4: Implement in-process control and full-process tracking control to ensure work quality; (1) Research on the construction technology of laying drainage boards; 1) Because the rounded convex shape of the hydrophobic board reduces the contact area between the surface layer and the base layer, the load-bearing capacity of the molded concrete is verified by three-dimensional calculation software to ensure that the quality meets the standards. 2) Determine the final construction method through research on construction techniques; 3) Through research on process control, determine the key points of construction quality control; 4) Use computer technology to build models and simulate the entire operation process to increase the accuracy and feasibility of procedures and processes; (2) Construction method for laying waterproof roofing slab 1) Base treatment: Inspect and clean the deposits, and clean the base layer by layer to ensure that the base surface is clean; 2) Prepare materials: Personnel should check the construction tools and waterproofing equipment and supplies to ensure that all materials are complete; 3) Material selection: precast foam board, polyurea elastomer, vegetable oleamide, floor decoration layer; 4) Specific operating steps Precast foam boards are laid on the basement ceiling, and concrete is poured on top of the precast foam boards. After the concrete dries, polyurea elastomer is laid on top of the concrete, and then vegetable oil amide is evenly brushed on the laid polyurea elastomer to fill the gaps in the polyurea elastomer. After the vegetable oil amide dries, HDPE hydrophobic board is laid with the floor decoration layer through the vegetable oil amide to complete the construction of the waterproof ceiling. (3) Construction method for laying drainage boards 1) Installation of the drainage board: Drill holes in the drainage board on site. After drilling, lay the drainage board on the waterproof ceiling of the basement and then wrap the drainage board with a non-woven fabric isolation layer. 2) Drainage blind drainage molding: After the drainage board is laid, loose gravel and pebbles are used to wrap the drainage board. After the loose gravel and pebbles are wrapped, a non-woven fabric isolation layer is used to wrap the gravel layer. 3) Drainage board diversion: Water accumulated in the loose gravel and pebbles on the basement roof seeps into the drainage board and is drained through the drainage board. Step 5: Collect and analyze data on-site. Analyze influencing factors by collecting data on-site and creating a statistical table of quality defects. Then analyze the reasons for such results and finally formulate and implement countermeasures.

2. The method for preventing leakage during basement construction according to claim 1, characterized in that: In step four, the prefabricated foam board includes a foam board, a fiberglass mesh, and a polymer cement mortar layer. A fiberglass mesh is placed on the outer side of the foam board, and a polymer cement mortar layer is applied to the outer side of the fiberglass mesh. The thickness of the foam board is greater than 130 mm, the thickness of the polymer cement mortar layer is 4-6 mm, and the density of the foam board is (500±20) kg / m³. 3 .

3. The method for preventing leakage during basement construction according to claim 1, characterized in that: In step four, before pouring concrete, a 3cm thick layer of cement mortar with the same mix ratio as the concrete should be filled at the bottom. The concrete should be uniformly compacted by moving the vibrator point by point in sequence, and the moving distance should not be greater than 1.5 times the vibration radius. After the concrete is poured, natural curing should begin within 8-12 hours. After the compressive strength reaches 5MPa, polyurea elastomer should be laid.

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