<ul><li>Conducted topographic surveys and alignment marking using total stations and GPS.<br></li><li>Observed tunneling works including excavation, rock bolting, shotcrete, and lining.<br></li><li>Learned concrete mix design, production, and quality control at batching plants.<br></li><li>Participated in site walkthroughs on intake structures, surge shafts, and diversion tunnels.<br></li><li>Gained insight into safety, planning, and engineering in large-scale projects.</li></ul>