Soil mechanics Study guides, Class notes & Summaries

What happens during fill operations? CORRECT ANSWER When fill operations are taking place the new soils are usually compacted in place to improve the strength characteristics. What is compaction CORRECT ANSWER Compaction in general terms is the densification of soil by the reduction in voids (mainly air) by mechanical means. How do you define degree of compaction? CORRECT ANSWER the dry unit weight Describe the dry unit weight CORRECT ANSWER -> It increases with compaction -> I...

Porosity CORRECT ANSWER Is defined as the ratio of the volume of voids to the total volume Degree of Saturation CORRECT ANSWER Is defined as the ratio of the volume of water to the volume of voids Moisture Content CORRECT ANSWER Is also referred to as water content and is defined as the ratio of the weight of water to the weight of solids in a given volume of soil Unit Weight CORRECT ANSWER Is the weight of soil per unit volume Dry Unit Weight CORRECT ANSWER The weight per unit volum...

Soil Mechanics - Exam 1 questions and answers with rated content Soil Mechanics Application of static, mechanics of materials, and fluid mechanics to describe the behavior of soils Soil Weathering rocks and minerals What are the differences between sand and clay? (size, shape, strength comes from __?) Sand: larger/coarse grained, rounder, strength from frictional forces between particles Clay: small/fine grained, flat, strength from water interaction Effective stress...

What is a settlement? CORRECT ANSWER a displacement caused by a change in stress What is the symbol for settlement? CORRECT ANSWER δ What are the three different types of settlements? CORRECT ANSWER -> Distortion -> Consolidation -> Secondary Settlement What is the equation for total settlement? CORRECT ANSWER δ = δd + δc + δs δ-> Total Settlement δd-> Distortion Settlement δc-> Consolidation Settlement δs-> Secondary Settlement What is Distortio...

True CORRECT ANSWER T/F: Hydraulic gradient, i, is defined as the energy or head loss, h, per unit length, l. True CORRECT ANSWER T/F: Seepage velocity, the actual velocity of the water flowing in the voids, is greater than the discharge, or superficial, velocity and is related by porosity. Degree of Soil Saturation Void Ratio Grain size distribution Pore size distribution CORRECT ANSWER Hydraulic conductivity, or permeability, depends on the following: False CORRECT ANSWER T/F: Ther...

Soil Mechanics Exam 2 questions and answers latest 2023 True T/F: Hydraulic gradient, i, is defined as the energy or head loss, h, per unit length, l. True T/F: Seepage velocity, the actual velocity of the water flowing in the voids, is greater than the discharge, or superficial, velocity and is related by porosity. Degree of Soil Saturation Void Ratio Grain size distribution Pore size distribution Hydraulic conductivity, or permeability, depends on the following: Fal...

Soil Mechanics Formulas 100% accurate answers stress σ=F/A strain ε = ΔL/L total weight Wt=Ww+Ws Ww=weight of water Ws=weight of solid soil Total Volume Vt=Va+Vw+Vs = Vs+Vv Va=volume of air Vw=volume of water Vs=volume of soil volume of void Vv=Va+Vw

Soil mechanics correct answers is a discipline that applies the principles of engineering mechanics to soils to predict the mechanical behavior of soil. Geotechnical Engineering correct answers is the branch of civil engineering that deals with soil, rock, and underground water, and their relation to the design construction and operation of engineering projects. Shallow Foundations correct answers for transferring building loads to underlying ground mostly for firm soils or light loads ...

Soil Mechanics The branch of science that deals with the study of the physical properties of soil and the behavior of soil masses subjected to various types of forces Coulomb Theories for soil strength Rankine Theories for soil stresses on retaining walls Terzaghi -Concept of effective strength, - Published the first book on soil mechanics - Considered to be the father of modern soil mechanincs Soil is formed by: Weathering & transportation of rock Weath...

Department of Civil Engineering CE 42- SOIL MECHANICS QUESTIONS & ANSWERS