John Mitchell Lecture: The Engineer, The Lawyer and The Contractor : A Philosophical Questioning About the Future of Geotechnical Engineering.-PPT Presentation

PPT Presentation

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The presentation examines the future of geotechnical engineering, arguing that technical progress must be balanced with practical judgment, effective communication, and a realistic understanding of uncertainty.<br /><br />Engineering has evolved from craft-based building toward scientific analysis and professional practice. Modern soil mechanics, established by Karl Terzaghi, has greatly advanced understanding of ground behavior. Yet soil is naturally variable and cannot be fully characterized: calculations and models remain limited by incomplete information, making observation, experience, and risk management essential.<br /><br />Today’s engineers face growing volumes of data, digital tools, research, codes, procedures, and contractual requirements. Monitoring, numerical analysis, and artificial intelligence can improve insight and performance, but they cannot replace sound engineering judgment. Used without sufficient expertise, sophisticated models may create false confidence. The presentation also warns that formal systems and specialization can fragment the industry, weaken communication, and erode tacit knowledge—the practical understanding gained through experience.<br /><br />Codes provide shared standards and legal protection, but cannot capture all ground conditions or substitute for field experience. Meanwhile, competitive procurement and increasingly prescriptive, unbalanced contracts often transfer unforeseen risks unfairly, encourage adversarial relationships, and prioritize contract management over building practical expertise.<br /><br />The profession must respond through better collaboration, transparent sharing of successes and failures, stronger education for engineers and clients, and fairer contracts that recognize and allocate uncertainty appropriately. New technologies and codes should support—not displace—experience and fundamental knowledge.<br /><br />Geotechnical engineering also faces environmental responsibilities and opportunities: reducing construction and material emissions, reusing foundations, improving design efficiency, and adapting infrastructure to climate change.<br /><br />The presentation concludes that the geotechnical engineer is not obsolete, but the profession must restore balance among science, technology, practice, and human judgment while preserving the expertise needed to work responsibly with complex ground conditions.

Keywords

geotechnical engineering

soil mechanics

engineering judgment

uncertainty

ground behavior

numerical analysis

artificial intelligence

tacit knowledge

contract risk

climate adaptation