SOIL MECHANICS_PRELIM1_INTRODUCTION.pdf

CLICK TO EDIT MASTER Click to edit Master title TITLE GEOTECHNICAL STYLE ENGINEERING 1 (SOIL style MECHANICS) Click to edit Master subtitle style Click to...

CLICK TO EDIT MASTER Click to edit Master title TITLE GEOTECHNICAL STYLE ENGINEERING 1 (SOIL style MECHANICS) Click to edit Master subtitle style Click to edit Master subtitle style ENGR. RUBYLYN MARUDO-TAGABUAN, RCE 30/08/2024 1  AGENDA CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE DISCUSSION OF TOPICS (1 HR) style LESSON CONTENT: INTRODUCTION TO SOIL MECHANICS Click SOIL FORMATION to edit Master subtitle style Click to edit Master subtitle style SOIL CONTITUENTS WEIGHT – VOLUME RELATIONSHIPS DERIVATION OF FORMULAS (1 HR) SEATWORK ( 1HR) 30/08/2024 2  “IT DOES NOT MATTER HOW SLOWLY YOU GO AS LONG AS YOU CLICK TO EDIT MASTER Click to edit Master title DON’T STOP.” - C O N F U C I U S TITLE STYLE style Click to edit Master subtitle style “IT NEVER GETS Click to EASIER. edit Master YOU subtitle style JUST GET BETTER.” 30/08/2024 3  INTRODUCTION CLICK TO EDIT MASTER Click to edit Master title Geotechnical Engineering TITLE STYLE It is a subfield of civil engineering that studies how earth materials style behave under engineering conditions. In order to address engineering issues and create engineering works, it applies the concepts and techniques of soil mechanics and rock mechanics. Includes : Click to edit Master subtitle style Click to edit Master subtitle style Investigating existing subsurface conditions Determining soil properties Assessing risks posed by site conditions Designing earthworks and structure foundation Monitoring of site conditions, earthworks, and foundation construction. 30/08/2024 4   It is an area of engineering research that studies how soil behaves and behaves as a structural material. CLICK TO EDIT MASTER Click to edit Master title  Establishing certain principles, theories, and techniques for TITLE STYLE SOI L M ECHA NIC S building a secure structure is the style primary goal of the study of soil mechanics. Click to edit Master subtitle style engineer must  The foundation Click to edit Master subtitle be ablestyle to adapt soil mechanics principles to the specifics of the field. 30/08/2024 5  a) Determination of allowable soil pressure under buildings or bridge piers, etc. CLICK TO EDIT MASTER Click to edit Master title ATTE M P TS TO GI VE b) Evaluation of the magnitude and distribution of earth pressures against various TITLE STYLE S O L UT ION TO TH E structures style F O L L OWI NG; c) Prediction of water movement through soil Click to edit Master subtitle d) style of stability of dams Evaluation Click to edit Master subtitle style and embankment e) Analysis and design of dams f) Improvement of soil properties by chemical or mechanical methods 30/08/2024 6  IMPORTA NCE OF SOIL  Every man-made structure sits on the ME CHAN ICS ground, so it needs a foundation to carry the most weight without breaking. We must study soil mechanics to determine how it CLICK TO EDIT MASTER Click to edit Master title acts and how well it can withstand these ultimate loads. TITLE STYLE style  To do innovative studies in the area.  To construct buildings using modern, cutting- edge techniques rather than the outdated, Click to edit Master subtitle style ones previously used. unscientific Click to edit Master subtitle style 30/08/2024 Photo from constrofacilitator.com 7  IM PORTA NCE OF SOI L M ECHA NIC S So many earthen dams have been created to hold water. The soil used to construct these earthen CLICK TO EDIT MASTER dams must be suitable for this purpose. On a Click to edit Master title regular basis, the permeability, strength, and density of the soil are evaluated to determine if it Earthen Dam TITLE STYLE has attained the desired density. style Earthen dams are expensive structures with a significant risk of failure; therefore, they must be Click to edit Mastererected subtitle with extreme care; hence, it is crucial to style Click to edit Masterresearch subtitlesoilstyle qualities. 30/08/2024 Photo from aboutcivil.org 8  IM PORTA NCE OF SOIL M EC HANI CS Embankments - CLICK TO EDIT MASTER Click to edit Master title - a wall, bank of earth, or stone built to prevent a river from flooding an area. It is needed to maintain the pavement's base above the water table. TITLE STYLE Generally, embankments are built on soil that style - - a bank of earth or stone built to carry a road or railroad over an area has been evaluated for its various properties. of low ground. It is necessary to build a cost-effective Click to edit Master embankment, subtitle style which can only be accomplished Click to edit Master by subtitle style analyzing the various soil qualities. 30/08/2024 Photo from abg-geosynthetics.com 9   The canals need to be strong IM PORTA NCE OF SOIL M EC HANI CS enough and impermeable to be built. The soil was retained by the retaining structure, just as it was CLICK TO EDIT MASTER Click to edit Master title Canals, retaining walls, and other underground structure by the retaining wall.  The characteristics of the earth TITLE STYLE must be understood. Properties style such as earth pressure, shear strength, and other characteristics inspire us to design retaining Click to edit Master subtitle style structures. Click to edit Master subtitle style  The geologist continuously examines the soil strata to provide an idea of the type of construction that will be carried out in the event that tunneling is necessary. Photo from redi-rock.com 30/08/2024 10  SOIL CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE In engineering, soils consist of all organic and inorganic earth materials found in style the zone above the rock crust. Typically heterogeneous porous material whose engineering behavior is strongly affectedClick by changes in water to edit content Master and density. subtitle style Click Considered to be to edit Master the plant-supporting earthsubtitle style definition). mold (agronomist Material found in the thin surface layer (geology). 30/08/2024 11  SOIL FORMATION CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE Weathering of Rocks style - Soils are formed from igneous or metaphoric rocks by many processes of nature, both physical (mechanical) and chemical. Click to edit Master subtitle style Click to edit Master subtitle style 30/08/2024 12  MECHANICAL WEATHERING CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE Fragmentation of rock by physical forces, in which the material’s crystal structure style remains unchanged. Physical forces degrade rock, including the following; Click Temperature Changes to edit Master subtitle style Click to edit Master subtitle style Freezing action of water Wedging action of plant roots Impact action 30/08/2024 13  CHEMICAL WEATHERING CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE The result of water or oxygen breaking down rock minerals, or alkaline or acid style materials dissolved in soil water. Such dissolve breakage is commonly caused by carbon dioxide in the air and organic matter inClick the topsoil. to edit Master subtitle style Click to Oxidation, carbonation, andedit Master solution are thesubtitle styledecomposition most common processes. 30/08/2024 14  SOIL CONSTITUENTS CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE Commonly, soil mass is a mixture of solid particles, enclosed voids, and style interspaces. Soil Constituents Click Solid or soil particles to edit Master subtitle style Click to edit Master subtitle style Voids 30/08/2024 15  SOIL TYPES (BASE ON CONSTITUENTS) CLICK TO EDIT MASTER Click to edit Master title Dry Soil TITLE STYLE style Only air is present in the voids of the compressed soil Saturated Soil Only water is present in the voids Click to edit Master subtitle style Click Partially to edit Saturated Master / Moist Soil subtitle style If water along with the air is present in the voids 30/08/2024 16  WEIGHT – VOLUME RELATIONSHIP CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE style Click to edit Master subtitle style Click to edit Master subtitle style 30/08/2024 17  WEIGHT – VOLUME RELATIONSHIP CLICK TO EDIT MASTER Click to edit Master title TITLE STYLE style Click to edit Master subtitle style Click to edit Master subtitle style 30/08/2024 18