METHODS OF CONSTRUCTION OF DIAPHRAGM WALLS
The method of constructing diaphragm walls is receiving much attention and is widely used in the construction of high-rise buildings or buildings with basements. So what is a diaphragm wall? How is the method of constructing diaphragm walls implemented? Let's find the answer with Hung Nghiep Phu in the article below!
1. What is a retaining wall?
Before learning about the construction methods of diaphragm walls, you should understand the definition of what a diaphragm wall is.
Tường vây được sử dụng khá phổ biến tại các khu đô thị hoặc những công trình yêu cầu đào hố sâu.
Diaphragm walls are understood as reinforced concrete walls that are poured right at the construction site. The walls are constructed by excavating the soil in parts by using crawler cranes using appropriate grabs or spirals to create deep holes with meticulously calculated dimensions in advance.
The diaphragm wall panels will be dug by the construction unit based on the orientation of the previously constructed guide wall and allow the level of fluctuation of the wall-holding solution with temporary loads from the steel reinforcement or waterproofing gasket structures.
Nowadays, diaphragm walls are quite commonly used in urban areas or projects that require digging deep holes. This is an extremely suitable construction method for construction projects with deep basements, underground stations, etc.
2. Construction methods of diaphragm wall
Diaphragm wall construction methods can be applied to many projects, constructed at great depths and suitable for many different geological conditions. During construction, noise and vibration are relatively small and do not affect surrounding residential areas.
Biện pháp thi công tường vây cũng cần có những trình tự và quy trình nghiêm ngặt để đảm bảo chất lượng, kỹ thuật và độ an toàn cho toàn bộ công trình.
This method can also be applied to narrow construction sites in large urban areas. However, the construction method of diaphragm walls also requires strict procedures and processes to ensure quality, technique and safety for the entire project.
The construction method of diaphragm walls includes the following steps:
- Preparation: Prepare documents on the geology of the construction area; appropriate construction methods
- Construction of guide walls: Guide walls are two parallel beams built along the edge of the wall to guide the excavation tools. Guide walls help the construction of diaphragm walls maintain horizontal connections; and continuously while avoiding landslides, marking the location of the control panel and supporting the reinforced steel cages.
- Dig the diaphragm wall and combine the use of wall-holding solution; The depth of the excavation pit is calculated in advance to ensure the quality of the project. Use wall-holding solution to stabilize the diaphragm wall.
- Clean the excavation pit.
- Place blocks and water barriers.
- Fabricate and install steel cages.
- Pour concrete.
3. Thi công tường vây barrette
Barrette wall construction is the construction of in-situ concrete walls; the wall thickness is usually from 600 - 800mm to ensure stability for deep foundations.
Barrette walls are usually made from rectangular cross-section piles. This type of pile is created by using a bucket excavator to dig the soil; it has a much larger load-bearing capacity than bored piles.
Barrette wall construction brings high economic efficiency; up to more than 30% compared to other types of piles today. The downside is that the construction of Barrette walls is quite complicated; therefore, only professional construction units with sufficient techniques, expertise; as well as modern machinery and equipment can apply.
Để tiến hành thi công tường vây hầm, người ta đổ tường bê tông tại chỗ, thường dày từ 600-800mm.
4. Basement wall construction
To construct the basement wall, concrete walls are poured on site; usually 600 - 800mm thick to ensure stability; to hold the deep excavation pit during the construction process.
Basement walls can be made from barrette piles, rectangular cross-section; width from 2.6m - 5.0m, depending on each project; as well as the meticulous calculation of the contractors.
Basement walls are often waterproofed by rubber and steel gaskets. The depth of the wall depends on the number of basements; as well as the geology of the project and the construction method.
5. Introducing a reputable design & construction consulting service provider
The importance of construction units is undeniable, their reputation will ensure the quality and aesthetics of your project. Currently, there are many units providing design and construction services to meet the increasing construction needs in our country. Therefore, finding a reputable unit is not easy and requires you to spend time researching. In the selection process, you need to research carefully and ensure that the accompanying unit must have high expertise, many years of experience, have a clearly signed contract, transparent costs, ... To help customers save time searching, Hung Nghiep Phu Construction Investment Co., Ltd. is confident that it will be the best choice for you.
Hung Nghiep Phu Construction Investment Co., Ltd. with the mission of providing the best solutions and services, building a prosperous community with customers, Hung Nghiep Phu is gradually affirming its brand through sincere cooperation, with a leadership team with ethical capacity, creativity, high expertise and strategic vision. Hung Nghiep Phu owns a team of skilled, highly qualified employees who will bring customers the best quality technology.
Hung Nghiep Phu Construction Investment Co., Ltd. - specializes in constructing civil and industrial works. We look forward to accompanying customers in construction projects as well as continuous procedures such as planning diagrams, applying for construction permits, completing procedures, applying for fire prevention and fighting certificates, ... If you have any questions or are in need of design, completing procedures, please contact us immediately for free consultation!
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Source: Compiled from the Internet
