Investigation of the soil strength (shear, tensile) for different types of soil
Nicole Tan YiTong and Yoon Kay Khaing
nicole_tan_yitong@s2021.ssts.edu.sg, yoon_kay_khaing@s2021.ssts.edu.sg
Soil is the loose surface material covering most land. During construction, soil provides structural support to buildings, making it a critical factor in their construction. Many factors can contribute to soil strength, and for our experiment, we chose to focus on moisture level as our independent variable. We tested the shear and tensile strengths of different moisture levels of soils to see if there is any relationship between the moisture level and the soil strength. Measuring the moisture level of soils is not a complicated task, just needing a meter, making it a good choice for our experiment. Testing and reasonably estimating soil's shear and tensile strengths is also a feasible task, even though we require many pieces of equipment as the experiments themselves do not require much time. From our results, we observed that as the moisture level increased, the shear strength of our soil decreased while the tensile strength of our soil increased. These results allowed us to figure out which moisture levels are most suitable for soil used in construction. By modifying the moisture levels of soils, a stronger soil can be obtained that is better for structures. As the world's population grows, engineering technologies also need to grow. Figuring out the relationships between soil components and their strengths is fundamental in building strong foundations for the world's homes.