Prior to 9/11, all structural wall and tunnel concrete applications in New York, NY, used the form-and-pour concrete placement method.
Shotcrete Lining Innovations in the United States
Historically, the permanent concrete linings for underground structures have been installed using form-and-pour methods but the use of shotcrete or sprayed concrete for the structural linings is becoming increasingly more common.
Towards Automated Concrete Spraying
Operating a remotely manipulated shotcrete placing system is one of the most demanding tasks in underground mining and tunnel construction.
Shotcrete Use in the Gold King Mine Rehabilitation
The Gold King Mine Level 7 Portal is located at elevation 11,438 ft (3486 m) on the North Fork of Cement Creek, approximately 8 miles (13 km) north of Silverton, CO.
Creating a Foundation for Success: The Use of Lidar in Tunneling Projects
Shotcrete placement requires close attention to safety; when combined with the difficult working conditions of a tunnel, overhead placement requires even greaterawareness of potential hazards.
Simple Still Works
Coastal Gunite Construction recently executed a few phases of a storm sewer rehabilitation in a line running under the Blue Plains Advanced Wastewater Treatment Plant operated by the District of Columbia Waterand Sewer Authority.
Cellular Sprayed Concrete
Cellular sprayed concrete is an innovative method of remixing ordinary portland cement (OPC) concrete into a high-performance concrete (HPC) by adding cellular material and silica fume or other powdered admixturesat a jobsite.
Shaft Lining with Dry-Mix Shotcrete
The Greater Vancouver Water District (GVWD), located in the lower mainland region of British Columbia, Canada, constructed a new water supply main in a tunnel under the Fraser River, just downstream of the PortMann Bridge.
Liverpool Central Tunnel High-Level Neck Repairs
Liverpool?s High-Level Neck tunnel (HLN) cannot lay claim to being the city?s most famous cavern, but it can justifiably be labeled as being one of the most unusual and challenging tunnels on the entire UK rail network.
Rails Steakhouse Wine Cave
Jim Stathis is a thinker and doer in everything he touches. Stathis started working with his hands at a very young age as a craftsman, which enabled him to develop his eye for creativity and make his ideas reality.