TRB's National Cooperative Highway Research Program (NCHRP) Report 507: Load and Resistance Factor Design (LRFD) for Deep Foundations examines resistance factors for driven pile and drilled shaft foundations,and provides a procedure for calibrating deep foundation resistance.
Errata - Table 29 and Figure 47 in the pdf of NCHRP Report 507 contains incorrect information. An update to Table 29 and Figure 47 are available on-line.[more]
TRB's National Cooperative Highway Research Program (NCHRP) Report 515: Portable Scour Monitoring Equipment presents the findings of a research project undertaken to develop portable scour monitoring equipment for measuring streambed elevations at bridge foundations during flood conditions. The report provides specific fabrication and operation guidance for a portable scour monitoring device.
Just below our feet is an environment that supports our infrastructure, yields water, provides for agriculture, and receives our waste. Our capacity to describe, or characterize, this environment is crucial to the solution of many resource, environmental, and engineering problems. And just as medical imaging technologies have reduced the need for exploratory surgeries, a variety of technologies hold the promise for rapid, relatively inexpensive noninvasive characterization of the Earth's subsurface.
Seeing into the Earth examines why noninvasive characterization is important an