Diaphragm walls technology is a construction method used to create underground continuous walls for various applications such as foundation walls, retaining walls, and cut-off walls. The construction process involves excavating a trench, installing a reinforcement cage, and pouring concrete into the trench while simultaneously removing the slurry. The slurry is a mixture of bentonite and water that is used to stabilize the trench walls during excavation.
One of the main advantages of diaphragm walls technology is its ability to create deep and strong underground walls that can withstand high loads and provide excellent water tightness. The technology is also highly versatile and can be used in various soil conditions, including soft soils, hard rocks, and mixed soils.
The equipment used to complete diaphragm walls includes a trench cutter, which is used to excavate the trench, and a grab crane, which is used to install the reinforcement cage and pour the concrete. Other equipment includes slurry pumps, bentonite mixing plants, and slurry treatment plants.
Overall, diaphragm walls technology is a reliable and efficient method for creating underground continuous walls that provide excellent structural support and water tightness. Its versatility and ability to work in various soil conditions make it a popular choice for many construction projects.