Geotechnical Engineering
Geotechnical Engineering is a primary branch of Civil Engineering concerned with the engineering behavior of earth materials. It utilizes principles of Soil Mechanics and Rock Mechanics to solve engineering problems related to the earth's crust. According to the American Society of Civil Engineers, the field is fundamental for the safety and stability of infrastructure projects such as bridges, tunnels, and skyscrapers.
The scientific foundation of the discipline was established by Karl Terzaghi, who published the first comprehensive work on soil mechanics in the early 20th century. Geotechnical Engineers perform site investigations to evaluate Subsurface Conditions and determine the physical, mechanical, and chemical properties of soil and rock. This process often involves drilling Boreholes and performing In-Situ Testing. Global standards and research are often disseminated by the International Society for Soil Mechanics and Geotechnical Engineering.
Key applications within Geotech include the design of Shallow Foundations, Deep Foundations, and Retaining Walls. Engineers must also address geological hazards such as Landslides and Liquefaction during seismic events. Specialized analysis regarding the interaction between soil and structures is documented in publications like the Geotextiles and Geomembranes journal, which focuses on synthetic materials used in ground improvement.