At Cefali & Associates, we have a long history of providing design services for tunnel and shafts. These projects have ranged from hand-mined shafts beneath existing structures to major subway tunnels utilizing both cut-and-cover as well as bored tunnels. Tunneling design is a complex design process involving the site’s geology as well as the Contractor’s desired method of construction as well as the constraints of the particular site.
Often times a tunnel requires an access shaft for work staging and muck removal. We have a great deal of experience in various sized access shaft design include below ground water, casing lined and soldier pile supported shafts. At Cefali & Associates, we have the experienced, creative and innovative professional staff to provide the client with the optimum solution to their tunneling needs.