Which structural problem arose when Roman road builders laid paving stones directly over soft ground?

💡 Explanation

When Roman road builders laid paving stones over soft ground, differential settlement occurred because the underlying soil compacted unevenly under applied loads, leading to tensile stresses, and thus cracking of the road surface. Therefore differential settlement results, rather than uplift, erosion, or thermal buckling which require other environmental conditions.

• Which inaccuracy was exposed when 18th-century sextants were deployed during Arctic exploration?
• Which structural adaptation allowed Hagia Sophia's dome to surpass earlier Roman domes in diameter?
• Which structural consequence occurred when ships transitioning from carvel to clinker planking experienced ice impacts?
• Which limiting factor constrained the positional accuracy of pre-telescopic Islamic astronomical instruments?
• Which geometrical problem did medieval Islamic algebra primarily aim to solve practically for land distribution?
• Which challenge occurred integrating early chronometers aboard wooden sailing ships due to variations in deck temperature?