High Strain Dynamic Pile Testing by Pile Driving Analyzer (PDA)

High strain dynamic testing is a method of testing deep foundations to obtain information about their capacity and integrity, and in some cases, to monitor their installation. It is codified by ASTM D4945-12 – Standard Test Method for High-Strain Dynamic Testing of Piles.High strain dynamic testing is called dynamic pile monitoring when it is applied … Read more

Cantilever Footing, Strap Footing – Definition and Design

A strap footing also known as cantilever footing, is a special case of combined foundation in which two separate footings are tied together by a beam called tie beam or strap beam.Mostly in cities, the houses are adjacent to each other due to limited and congested space available i.e. the outer walls are touching each … Read more

Download AASHTO Soil Classification Excel Spread Sheet [XLSX]

AASHTO stands for American Association of State Highway and Transportation Officials. Developed in 1992 a comprehensive soil classification system that helps field engineers in estimating the general properties and characteristics of the soil encountered during the foundation preparation and other relevant construction works.  After the first publication the classification system has undergone several revisions.  Download … Read more