Grouting Technology for New Tunnel Invert Serious Seepage
GROUTING TECHNOLOGY FOR NEW TUNNEL INVERT SERIOUS SEEPAGE The most rapid and effective method for invert slab leakage stoppage and reinforcement. 1. Project Background A subsurface excavated subway tunnel in Southern China suffered serious water seepage after the invert slab and track laying had been completed.After the construction crew carried out injection of modified epoxy
Polyurethane Crack Sealant Grout Material Classification and Injection Methods
POLYURETHANE CRACK SEALANT GROUT MATERIAL CLASSIFICATION AND INJECTION METHODS Long-Term Leak Stop, Reinforcement, Crack Injection Technology And Grout Material Selection. 1. Composition & Application Polyurethane (PU), generally refers to a high molecular polymer containing urethane characteristics in the main chain of the molecule. Depending on the main agent and additives, it can take a variety
Grouting Tech for Construction Sites Excavation Water Inrush.
GROUTING TECH FOR CONSTRUCTION SITE EXCAVATION WATER INRUSH Hot bitumen leak-stop tech use for water inrush at top-down method pit excavation 1. Project Background The Top-Down construction method has many advantages, such as shortening the construction period and having little impact on adjacent buildings. It is often used in urban construction projects. However, while employing
Hot Bitumen Reinforcement Method For Tunnel Cave-in Water Inrush
HOT BITUMEN REINFORCEMENT METHOD FOR TUNNEL CAVE-IN WATER INRUSH The fastest and most effective reinforcement technology to prevent large-scale tunnel cave-in water inrush. 1. Project Background Hot Bitumen Reinforcement Method : When a mountain tunnel was being excavated, a rock fracture zone was encountered, with a collapse of the excavation face. The water outflow was
Grouting Reinforcement : Obstacle Removal In TBM Tunnel Construction
GROUTING REINFORCEMENT TECHNOLOGY FOR OBSTACLE REMOVAL IN TBM TUNNEL CONSTRUCTION The Most Rapid and Effective Method of Partial Grouting Reinforcement and Water Stopping 1. Project Background Grouting Reinforcement : Thailand’s capital, Bangkok, often had severe flooding due to rainfall. The government planned construction of large drainage tunnels to alleviate the frequent urban water accumulation.In order
Water Leakage Repair For Rail Tunnel In Operation
WATER LEAKAGE REPAIR TECHNOLOGY FOR RAIL TUNNEL IN OPERATION The Fastest And Most Effective Grouting Method For Seepage-Proofing Tunnels 1. Project Background Water Leakage Repair : After a period of operation of the rail tunnel, water leakage occurred in some places.In order to avoid tunnel displacement caused by an increase of water flow and the