SHAFT screenshot
Software :SHAFT
Developer :Ensoft
Version :2012
Last Update :23 July 2014
Platform:Windows
File Size :15.43 MB
License :Demo
Downloads :UserDownloads:216
SHAFT Description

SHAFT is a computer program used to evaluate the axial capacity and the short-term, load-settlement curves of drilled shafts or bored piles in various types of soils. In general, the majority of axial capacity methods used by SHAFT are based on the latest FHWA manual. In addition, several other axial capacity methods are provided for clay shales, gravels, and gravelly sands.

SHAFT v2012 introduces LRFD principles for axial response of deep foundations so users of this new release are now able to specify separate reduction factors for side resistance and end bearing on each soil layer.

The analytical methods employed by SHAFT are based on experimental data obtained from hundreds of well-instrumented axial load tests of full-sized drilled shafts. Newer criteria for soil response of gravel and weak rock were modeled after papers of recent publication.

SHAFT can analyze the axial capacity and settlement behavior of drilled-shafts in eight types of soil and rock models. SHAFT can accommodate any combination of soil and rock layers in a layered profile. The soils and rock models in SHAFT are the following:

  1. clay - cohesive geomaterial (FHWA),
  2. sand - cohesionless geomaterial (FHWA),
  3. clay - shale (Reese & Aurora),
  4. strong rock - using either side resistance or end bearing (FHWA),
  5. strong rock - using both side resistance plus end bearing (for comparison)
  6. decomposed rock/gravel (FHWA) (new since v6),
  7. weak rock - cohesive intermediate geomaterial (FHWA),
  8. gravel - cohesionless intermediate geomaterial (Rollins et al)
  9. gravelly sand (Rollins et al).(new since v6)
* SHAFT download link provides demo version of the software.
* Keywords: axial capacity, load-settlement curve, drilled shafts, bored piles, fhwa, clay shales, gravel, gravelly sand, shaft, deep foundation, end bearing, cohesive geomaterial, cohesionless geomaterial, reese, aurora, rollins
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