Electrical Tunnel Detail with CHQD Plate Plan and Structural Details

This AutoCAD drawing presents a detailed electrical tunnel detail with CHQD plate plan, prepared for underground and service tunnel construction. The drawing includes sectional views T1–T1 and T2–T2 showing tunnel depth, internal clearances, and access opening dimensions. CHQD plate details are illustrated with opening size, cover size, plate thickness, angle framing, and gap allowances. Reinforcement placement, PCC base, concrete thickness, insert plates, and metal slabs are clearly marked to support accurate execution. Level markings and dimensional annotations help explain tunnel height, working space, and structural coordination.

The drawing also highlights construction detailing such as heavy-duty precast cover arrangement, flooring layers, and fixing methods for CHQD plates. Typical details CP-1 and CP-2 explain the cover plate configuration and load-bearing layout for safe access. This electrical tunnel construction detail drawing is suitable for engineers and site teams working on infrastructure and utility projects. Clean drafting, consistent scaling, and structured annotations make the drawing reliable for planning, construction detailing, and coordination using AutoCAD-based construction documentation workflows.