Unit ii pile foundations hand written notes

•

2 likes•1,225 views

Types of piles - Load carrying capacity of piles based on static pile formulae in different soils- Dynamic pile formulae - Pile load tests - Load carrying capacity of pile groups in sands and clays - Settlement of pile groups.

Unit ii pile foundations hand written notes

This document discusses different types of braced excavation systems used to support deep excavations, including soldier beams with lagging, sheet piles, and slurry trenches. It describes the design process for braced cuts, which involves analyzing stability, ground movements, and structural elements like sheet piles and struts. Methods for determining loads on structural elements using tributary area and equivalent beam approaches are presented. Factors affecting stability like heaving in soils are discussed. Design of structural components like struts, wales, and sheet piles is also covered.

Bearing capacity of shallow foundations by abhishek sharma

ABHISHEK SHARMA

Pile load test

Naman Kantesaria

This document summarizes the procedures for conducting a pile load test to determine the load carrying capacity of a pile. The test involves installing a test pile between two anchor piles and applying incremental loads through a hydraulic jack while monitoring settlement. Loads are applied until the pile reaches twice its safe load or a specified settlement. A load-settlement curve is plotted to determine the ultimate load and safe load based on settlement criteria. The test provides values for maximum load, permissible working load, and pile settlement under different loads.

Pile foundation -Types, Advantages & Load Carrying Capacity

SHAZEBALIKHAN1

Slope stability

Dr. Pallavi Badry

This document provides an overview of slope stability and analysis. It defines different types of slopes as natural, man-made, infinite and finite. Common causes of slope failure like erosion, seepage, drawdown, rainfall, earthquakes and external loading are described. Key terms used in slope stability are defined, including slip zone, slip plane, sliding mass and slope angle. Types of slope failures are identified as face/slope failure, toe failure and base failure. Methods for analyzing finite slope stability, like Swedish circle method, Bishop's simplified method and Taylor's stability number are introduced. Infinite slope analysis is described for cohesionless, cohesive and cohesive-frictional soils. Example tutorial problems on slope stability calculations are

This document discusses lateral earth pressure and its importance in retaining wall design. It defines lateral earth pressure as the pressure soil exerts horizontally. Lateral earth pressure depends on soil shear strength, pore water pressure, and equilibrium state. It is important for designing structures like retaining walls, bridges, and tunnels. The document discusses coefficient of lateral earth pressure (K), and the three states: at-rest (Ko), active (Ka), and passive (Kp) pressure. It also presents Coulomb and Rankine theories for calculating earth pressure and describes investigation methods and lateral wall supports like gravity, cantilever, anchored, soil-nailed, and reinforced walls. Geofoam is discussed as a method to reduce lateral stresses in

Settlement of soil/foundation

Jam Shoaib Ahmed veeha

This document discusses settlement of structures. It defines settlement as the vertical downward movement of a structure resulting from deformation of the supporting soil. Settlement includes three components: immediate/elastic settlement occurring within 7 days; primary consolidation settlement over time as pore water is expelled from saturated soils; and secondary compression of the soil skeleton. Differential settlement occurs when different parts of a structure settle by different amounts, potentially causing tilting. Common causes of settlement include excessive structural loads, weak soil compaction, changing groundwater levels, transpiration by plants, earthquakes, and drainage issues. Foundations must be designed to support dead loads, live loads, wind loads, and seismic loads without exceeding the soil's safe bearing capacity.

Under reamed pile construction (usefulsearch.org) (useful search)

Make Mannan

Well foundation

Collation Soft Solutions Pvt.Ltd

The document discusses different types of well foundations used in construction. It describes the key components of well foundations including the cutting edge, steining, bottom plug, top plug, and well cap. It explains the process of sinking well foundations, which involves excavating material inside the well curb to allow the well to sink vertically into the ground. Precautions like maintaining verticality and limiting tilt and shift are important during well sinking.

Causes of settlement, foundation loading and computation

Pirpasha Ujede

This document discusses various types of settlement that can occur in foundations and soils due to applied loads. It describes immediate settlement (Si) due to soil distortion, primary consolidation settlement (Sc) due to pore pressure dissipation in clays, and secondary consolidation settlement (Ss) in organic soils. The total settlement (S) is the sum of these three components. It also outlines other causes of settlement like erosion, temperature changes, vibrations, and mining. The document concludes by defining and explaining the different types of design loads that cause settlement, including dead loads, live loads, wind loads, snow loads, earth pressures, water pressures, and earthquake loads.

Machine foundations

Iqbal M

This document discusses different types of machine foundations. It describes three main types: block foundations, which are used for reciprocating machines; box foundations, which are hollow and have a higher natural frequency than block foundations; and wall foundations, which use vertical columns and horizontal frames for larger machines. It also discusses determining soil parameters through laboratory tests, vibration analysis for single and multi-degree of freedom systems, Indian code of practice IS 2974 for designing rotary machine foundations, and common design considerations like foundation mass and isolation.

Types of joints in rigid pavement

Bhavya Jaiswal

There are two main types of joints in rigid pavement: longitudinal joints and transverse joints. Longitudinal joints run parallel to traffic flow, while transverse joints run perpendicular. Transverse joints include construction joints, contraction joints, and expansion joints. Construction joints define the boundaries of individual concrete placements. Contraction joints relieve tensile stresses from shrinkage. Expansion joints allow for expansion of the concrete due to rising temperatures.

Sinking of well foundation

Sourabh Jain

Coffer dam and its type

Gaurang Kakadiya

Coffer dams are temporary structures built to retain water and soil in order to create a dry work area for construction projects. There are several types of coffer dams suited to different conditions, including earth-filled, sheet pile, and cellular designs. Key considerations in selecting a coffer dam include water depth, area size, soil/river bed conditions, and potential for erosion or flooding. Proper design is needed to withstand hydrostatic pressures and ensure structural integrity until the permanent structure is complete.

Tension members

sky hawk

Tension members are structural elements subjected to direct tensile loads. Their strength depends on factors like length of connection, size and spacing of fasteners, cross-sectional area, fabrication type, connection eccentricity, and shear lag. Failure can occur through gross section yielding, net section rupture, or block shear. Design involves selecting a member with sufficient gross area to resist factored loads in yielding, then checking strength considering net section rupture and block shear failure modes.

Soil exploration part i

Avinash Kumar Gupta

The document discusses various methods of soil exploration including borings, test pits, and geophysical methods. It describes the objectives of soil exploration as determining the suitable foundation type, bearing capacity, and other factors. The key methods discussed are displacement boring, wash boring, auger boring, rotary drilling, percussion drilling, and continuous sampling boring. Each method is explained along with its suitable soil conditions, advantages, and limitations.

Earth pressure

Abhishek Kansara

This document discusses soil mechanics concepts related to lateral earth pressure. It defines active and passive earth pressures and describes Rankine's theory and assumptions for calculating lateral pressures on retaining walls. Equations are provided for determining active and passive earth pressure coefficients and distributions for cohesionless and cohesive soils. The effects of groundwater, surcharges, and sloping backfills are also examined. Sample problems are included to calculate lateral earth pressures and forces on retaining walls for different soil and loading conditions.

Structural analysis 1

R VIJAYAKUMAR

This document discusses structural analysis methods for statically indeterminate structures. It defines key terms like degree of static indeterminacy, internal and external redundancy, and methods for analyzing indeterminate structures. Specific methods discussed include the flexibility matrix method, consistent deformation method, and unit load method. Examples of statically indeterminate beams and frames are also provided.

Different types of pile

Gaurang Kakadiya

This document provides information on pile foundations, including when they are used, their functions, types, and construction methods. Pile foundations are used when the soil at shallow depths does not have adequate bearing capacity. The key points are: - Pile foundations transmit loads from structures to deeper, stronger soil layers through end bearing, friction, or both. - They are used when shallow soils cannot support heavy loads, have low bearing capacity, or experience issues like high water levels. - Piles can be made of concrete, timber, steel, or composites, and are either pre-cast or poured in place. Common types include end bearing, friction, compaction, and anchor piles.

Soil stabilisation (1)

Safiullah Khan

This document discusses different methods for soil stabilization, including mechanical, physical, chemical, and bituminous stabilization. Mechanical stabilization involves compacting soil to increase density and strength. Physical stabilization involves blending soils or adding admixtures to improve properties. Chemical stabilization uses lime, cement, or other chemicals like calcium chloride to react with soils and modify their characteristics. Bituminous stabilization involves adding bitumen or asphalt to seal soil pores and increase cohesion between particles. The document provides details on appropriate soil types, required quantities, and construction methods for each stabilization technique.

Ductile detailing IS 13920

INTEZAAR ALAM

The document discusses ductility and ductile detailing in reinforced concrete structures. It states that structures should be designed to have lateral strength, deformability, and ductility to resist earthquakes with limited damage and no collapse. Ductility allows structures to develop their full strength through internal force redistribution. Detailing of reinforcement is important to avoid brittle failure and induce ductile behavior by allowing steel to yield in a controlled manner. Shear walls are also discussed as vertical reinforced concrete elements that help structures resist earthquake loads in a ductile manner.

Cofferdam

ubaidpvkd

Chapter 4.3 well foundation-final-ppt

DYPCET

Well foundations, also known as caissons, are deep foundations used to transfer structural loads through unstable soil layers to more competent soil or bedrock. They are constructed by sinking a watertight retaining structure (caisson) into the ground and then filling it with concrete. Key components include the cutting edge, well curb, bottom plug, steining, top plug, and well cap. Construction involves excavating inside the caisson while applying an air pressure differential to counter soil and groundwater pressures (pneumatic caisson). Workers are at risk of decompression sickness if pressure changes are not controlled slowly.

Unit VI : Boundary layer theory notes

Unit ii pile foundations hand written notes

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

More from PRASANTHI PETLURU

More from PRASANTHI PETLURU (17)

Recently uploaded

Recently uploaded (20)