13 Oct
|
Larsen and Toubro
|
India
13 Oct
Larsen and Toubro
India
Preparation of Tunnel Alignment Drawings
Horizontal & vertical alignment
Chainages, gradients, curves, and cross?sections
Integration with road geometry and portals
Geological & Geotechnical Drawings
Bore log layouts
Geological longitudinal sections
Rock mass classification zones (RMR / Q?system)Overburden profiles and fault zones
Tunnel Cross?
Sections & Typical Sections
Excavation profiles
Primary lining (shotcrete thickness, mesh, ribs)Waterproofing layers
Secondary lining (RCC)Structural Drawings
Temporary supports (lattice girders, steel ribs)Rock bolt / anchor layouts
Invert and crown reinforcement drawings
Portal retaining walls
Method?
Specific DrawingsNATM excavation sequence drawingsTBM segment geometry & ring build drawings
Launching & retrieval shaft layouts
📌 CAD Engineer (India)
🏢 Larsen and Toubro
📍 India