https://diler.tube/videos/watch/50644e02-a63c-4b6c-908c-445dd5b7787f This hands-on classroom investigation explores how groundwater affects soil stability and how engineers manage water and unstable ground during construction. Using sand to model the ground, students first compare excavation stability under different water conditions: • Dry ground • Moist (unsaturated) ground • Wet (saturated) ground Students then model engineering solutions used in wet or unstable ground, including cofferdams, caissons and dewatering. By removing water and testing the ground under load, students observe how groundwater conditions can influence seepage, settlement and stability. By comparing different ground conditions, students explore how engineers use geomechanics to safely construct foundations and excavations in areas affected by groundwater. Tue, 15 Sep 2026 03:06:33 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://diler.tube https://diler.tube/lazy-static/avatars/f58b270a-6076-478a-ad43-3888a532ecb4.png https://diler.tube/videos/watch/50644e02-a63c-4b6c-908c-445dd5b7787f All rights reserved, unless otherwise specified in the terms specified at https://diler.tube/about and potential licenses granted by each content's rightholder.