Which outcome occurs when terrace construction encounters bedrock?

💡 Explanation

Damage increases because impacting bedrock limits effective water drainage. This elevates pore pressures which triggers slope instability via increased effective stress exceeding (Terzaghi's) Shear failure mechanism. Therefore, erosion occurs on the surface rather than improved structural support.

• Which mechanical risk increased through repeated smelting of mixed-ore copper during the Bronze Age?
• Which acute operational risk increased as medieval Chinese armies integrated cast iron crossbow triggers?
• Which irrigation demand risk increases with wide shadier tree canapies covering historic Mughal garden water channels?
• Which risk was historically increased in bronze socketed axe heads during repeated heavy impacts on wood?
• Which material property's minimization improves Roman concrete harbor fortifications' long-term stability?
• Which limitation arises when using early astrolabes to measure distant star altitudes near twilight?