Grouting Reinforcement & Mud-Spray Treatment for Airport Taxiway
GROUTING REINFORCEMENT & MUD-SPRAY TREATEMENT FOR AIRPORT TAXIWAY Method for filling & strengthening ground beneath paving slabs 1. Project Background Grouting Reinforcement : In the rainy season, an airport taxiway had serious mud spray from expansion joints and paving slab cracks. In order to avoid hazards such as foundation hollowing and subsidence under the concrete
Water Inrush Blocking Technology for Tunnel Access Shaft Sidewall
WATER INRUSH BLOCKING TECHNOLOGY FOR TUNNEL ACCESS SHAFT SIDEWALL Method to stop water inrush in shaft excavation. 1. Project Background Water Inrush : When a drainage tunnel was being excavated near the bottom of an access shaft, an inrush of high-pressure fissure water was encountered at the rock formation/fracture zone joint plane. The water output
Site Improvement Technology For TBM Shaft Horizontal Grouting
SITE IMPROVEMENT TECHNOLOGY FOR TBM SHAFT HORIZONTAL GROUTING The site improvement technology to avoid impact with shallow obstacles. 1. Project Background The capital of Thailand, Bangkok, is located on a sedimentary plain with an average elevation of about 2m. The Chao Phraya River runs through the urban area. It is often troubled by floods and
Structural Repair Method Of Fire-Damaged Reinforced Concrete Building
STRUCTURAL REPAIR MOETHOD OF FIRE DAMAGED REINFORCED CONCRETE BUILDING Building Fire Damage Restoration Technology 1. Project Background A fire occurred during the construction of the structure of a building.This caused the structure of the building to be blackened and the surface cracked.In the more serious areas the concrete protective layer had peeled off. In order
Double Tube Grouting to Stop Water In Saline-Alkali Area
DOUBLE TUBE GROUTING TO STOP WATER IN SALINE-ALKALI AREA Sealing Technology For Serious Leakage Of Offshore Pile Cofferdam 1. Project Background When constructing the foundation of a sea-crossing bridge, double-layer steel plate pile sandwich filled with low-strength backfill material (CLSM) was used as a temporary cofferdam. The piling operation conditions at sea are severe, so
Grouting Technology to Prevent Leakage And Carry Out Repairs to Sewers.
GROUTING TECHNOLOGY TO PREVENT LEAKAGE AND CARRY OUT REPAIRS TO SEWERS Sewage Discharge Tunnel Leakage Detection And Restoration 1. Project Background Grouting Technology – In this tunnel leakage case, a deep underground sewage discharge tunnel was responsible for the important task of transporting domestic sewage to the treatment plant. After the discharge tunnel had been
Grouting Anti-Corrosion Technology For Ground Anchor
GROUTING ANTI-CORROSION TECHNOLOGY FOR THE FREE SECTION OF IN-PLACE GROUND ANCHORS The Most Effective Way To Avoid Corrosion Of Existing Ground Anchors 1. Project Background Grouting Anti Corrosion Technology : Taiwan’s mountain slopes account for about 70% of the total area. During project development, ground anchors are often used to prevent landslides.Whether the ground anchor
Grouting Method For Blocking Water And Sand
GROUTING METHOD FOR BLOCKING WATER AND SAND INRUSH IN UNDERGORUND PIPLINE IN SOFT SANDY SOOIL LAYERS Grouting technology for water and sand inrush in underground pipeline during construction 1. Project Background The shield construction method with a special-shaped steel ring sheet design was adopted for a large underground pipeline. During the construction process, serious water
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