Pressure, Resistance, and Stability of Earth American Society of Civil Engineers: Transactions, Paper No. 1174, Volume LXX, December 1910

This paper revisits the fundamental problem of how earth supports and distributes loads, building on earlier work about trench and tunnel bracing. The author describes a series of large‑scale sand‑box experiments that reveal the arching behavior of compacted sand when a false bottom is removed, and how additional human weight compresses the arch before it eventually collapses. The discussion extends the observations to frozen sand, suggesting that the same principles could be used to stabilize tunnels in soft ground by exploiting natural arch formation.

Beyond the laboratory, the work translates these findings into practical guidance for engineers concerned with pile foundations, the stability of submerged structures, and the buoyant forces acting on soft‑soil constructions. By linking measured pressures to simple geometric concepts such as the angle of repose, the paper offers usable formulas that help predict when an earthen mass will behave as a self‑supporting arch versus when it will yield. Listeners will gain insight into the early scientific approaches that still influence modern geotechnical design.