WA KAY UYAB!! WA KAY UYAB!! WA KAY UYAB!! WA KAY UYAB!! WA KAY UYAB!! What geotechnical engineering? - It is the story of engineering relationship between humans and earth It is the science that explains the mechanics of soils and rock, and its engineering application’s development to human kind. In early times the practice of Geotechnical engineering was applied by trial and error, observational experience and empirical experimentation, problems such as the notorious leaning tower of pisa. Prompted Engineers to begin taking a more basic scientific approach to geotechnical engineering 1700 – 1900 Coulomb, Darcy, Rankine, Boussiness, Mohr, Atterberg Published fundamental theories on soil mechanics and water flow through soil Several organization and society were formed to the early 1900 to advance its field of civil engineering, particular recognition is given to Karl Terzaghi who is considered to be the father of modern geotechniques with his classic book on soil mechanics published in 1925 What is the international society for soil mechanics and geotechnical engineering? In 1936 along with fellow colleagues from 20 different countries. Tataki founded soil mechanics and geotechnical engineering. He became its first president. Today, the International Society has more than 89 countries. Members involving over 19,000 individuals in the geotechnical engineering profession. Most of what the technical engineers do is hidden below the ground surface yet it is a very important discipline with a vast Scope as all construction has the rest on or in the ground. Soil is a complex material which? Which is very valuable in grain size, cementation, strength, and behavior. This renders the task of a geotechnical engineer among the most challenging tasks in civil engineering. Geotechnical engineers use fundamental principles of soil and rock mechanics to investigate subsurface conditions. This allows them to evaluate and design activities such as. The stability of natural slopes and man-made soil deposits, so with cuts and fills, shallow and deep foundations, dams, retaining walls, and many other works. Directly interacting with the subsoil and water. In order to meet the diversity of challenges the profession faces. the International Society has created 30 technical committees over the last 50 years, each representing. A particular aspect of geotechnical engineering. Foundation engineering is one important area of geotechnical engineering. The foundation of every structure should be designed to withstand man-made and natural loads. Vertical and lateral pressures are created by earthquakes and high winds as well as the weight of the structure itself. Buildings, skyscrapers, bridges, and other superstructures have to bear on shallow footings mats or pile foundations. Shoring systems include bracing of deep excavations, nailing of landslides, and the support of tunnels to name a few. Any geotechnical engineering project is different indeed the soil at a site is likely different from any other site. As a result, the most common first step of any geotechnical project is the site investigation, it starts by drilling into the soil and rock testing them in the field or collecting samples which can then be analyzed in a laboratory. Once soil and rock properties are determined the geotechnical engineer can design the project including its environmental impact, investigations can include the assessment of the risk to humans property and the environment from natural hazards such as earthquakes, landslides, sinkholes, soil liquefaction, debris flows, and rockfalls. Geotechnical engineering can significantly influence the sustainability of infrastructure development because of its early position in the construction process given the intensive research carried out in the impressive geotechnical advancements are made on a regular basis. Most of these innovations are often hidden from the public eye since the work is underground. These innovations are however a crucial part of a success story, they can be temporary in nature such as deep excavation and support to construct a high-rise tower like Borg Halifa or permanently embedded such as the complex foundation system of the Rianna and Tyrion bridge. The build environment where we live serves as the dynamic interface through which humans and the ecosystem interact and influence each other. Understanding this interdependence is key to fathoming the impact of geotechnical engineering on society. Throughout history, geotechnical engineering has made changes in the way we live or even think. Projects like building the Aswan dam, laying the foundation of Golden Gate Bridge, digging the Panama Canal, stabilizing the cliffs at Point New York or giving new life to the Tower of Pisa have affected past and present generations such projects large and small will continue to impact and shape our future. It has been a cycle of sharing knowledge and gaining knowledge of accomplishments and lessons learned the International Society for soil mechanics and geotechnical is proud to be at the center of this field emblematic of human achievements.