Which outcome occurs when Roman mining techniques undermine a fort during a siege?

💡 Explanation

Mining causes catastrophic wall collapse because undermining destabilizes the foundation: a state of compression is replaced by tension and shear, causing structural failure. Therefore a collapse occurs rather than controlled demolition, because the exact fall location is influenced by subsurface conditions.

• Which observational error increases as projections shift away from orthographic representation when using astrolabes?
• During the Islamic Golden Age, which issue worsened astrolabe accuracy under high humidity?
• Which outcome during high-altitude Inca stone construction increased from thermal cycling?
• Which outcome would excessive clay content cause during early brick masonry?
• Which outcome resulted from ancient terracing during heavy rainfall?
• Which consequence resulted when Inca stone masonry lacked expansion joints at Machu Picchu?