Book

Description

Unveiling the Subsurface Secrets: A Journey into the Shear Strength Parameters of Cohesive Soil and Silty Sand in Civil Engineering Structures Embark on a comprehensive exploration of the fundamental material shaping the foundations of civil engineering structures — the soil. Diving into the intricate world of cohesive soil and silty sand, our research unveils the pivotal role played by these granular soils in construction. In the realm of civil engineering, the determination of shear strength parameters (c & ɸ) emerges as a crucial factor. Our study delves into the challenges faced by structures, such as foundation failures, slope instabilities, and retaining wall collapses. The remedy lies in accurately selecting shear strength parameters derived from meticulous laboratory and field tests. Our methodology entails the meticulous collection of sand samples from the site, followed by preservation and transportation for in-situ moisture content determination using the Oven-drying method. The gradation of sand samples is unveiled through a meticulous Sieve analysis, establishing the relationship between gradation and dry density. Enter the realm of the standard and modified Proctor tests, where the maximum dry density and optimum moisture content are unveiled. To decipher shear strength parameters, the Direct shear test is performed in both dry and saturated conditions. Major findings beckon as we uncover the in-situ moisture content of Ravi, Chenab, and Lawrencepur sand samples. The gradation details, loose density variations, and Proctor test results present a comprehensive picture of these essential soil types. Discover the cohesion and angle of internal friction in dry and saturated conditions, shedding light on the intricate behaviors of Ravi, Chenab, and Lawrencepur sands. Join us in unraveling the mysteries beneath the surface and redefining the way we approach civil engineering challenges.