<p>Unknown bridge foundations present a unique challenge to Departments of Transportation (DOT) across the country since foundation characteristics are a necessary input to assess scour vulnerability and to develop appropriate scour countermeasures. A number ...

<p>Based on experience and extrapolation, it is found that the best way to predict pile behavior is to perform a pile loading test. In this study a comparison between the static and dynamic load tests results was made to evaluate the ability of the High Strain ...

<p>Deep foundations provide the key support for most heavy structures. The final product often is highly dependent upon the skill of the installing contractor and the success of the installation can be greatly influenced by the surrounding soils. It is imperative ...

Book on foundation design.Before a foundation design can be embarked on, the associated soil profile must be well established. The soil profile is compiled from three cornerstones of information: • in-situ testing results, particularly continuous tests, such ...

This report provides information on the current practices used by state transportation agencies to develop pile driving criteria, with special attention paid to the use of test pile data in the process.

<p>Piles are used to transfer loads to a deeper bearing strata, support structures on soil too weak for spread footings and/or protect against scour. Pile driving is unique in the construction industry, in that the machinery used to install the product is ...

The paper presents the findings to reaffirm the principle that design of a piled foundation requires the analysis of the interaction between load transfer, soil settlement and pile toe load movement response.

This case history describes the foundation design and construction for the New Mississippi River Bridge, presently under construction in St. Louis, Missouri. The 1,500 ft (457.2 m) main span of the cable-stayed bridge is supported by two delta tower pylons ...

Construction issues when using drilled shafts for bridge foundations

The paper reports the measurements and analyses and indicates the method for determining the residual load, the strain - dependent modulus of the test piles and the actual load distribution in the test piles.