Instrumentation of MSE Wall Containing Laterally Loaded Drilled Shafts

Pierson, Matthew C.; Parsons, Robert L.; Han, Jie; Brennan, James J.; Vulova, C.

doi:10.1061/41023(337)45

Cited by 4 publications

(2 citation statements)

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“…Movement of telltales installed within the fill and attached to the geogrid, as well as targets attached to the wall facing, was monitored using a digital camera and a photogrammetric process. Additional details on construction and instrumentation are located in Pierson (2008Pierson ( , 2009.…”

Section: Construction and Instrumentationmentioning

confidence: 99%

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Lateral Load Capacity of Cast-in-Place Shafts behind an MSE Wall

Parsons

Pierson

Han

et al. 2009

Contemporary Topics in in Situ Testing, Analysis, and Reliability of Foundations

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Current practice for designing laterally loaded cast-in-place shafts that pass through an MSE Wall involves isolating the shafts from the MSE mass and anchoring the shafts into the underlying foundation material. Sizeable cost and time savings could be realized, while still maintaining stability and reliability, if a method were available to evaluate the lateral load capacity of a shaft that is supported by the MSE mass alone with no rock socket.Construction, instrumentation, and testing of multiple 0.9m (36in.) diameter shafts solely supported by a 6m (20 ft) MSE block wall was conducted for the Kansas Department of Transportation (KDOT). This paper describes the design and construction of the wall and shafts, and the results from the lateral load tests of two of the shafts. These shafts had lengths that were equal to the full height of the wall and 75 percent of the full height of the wall to evaluate the reduction in capacity if shorter foundation elements suspended in the MSE mass were used. Results for both load and deflection of the shafts and the relative deflections of the shafts and wall facing during loading are presented.

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Section: Construction and Instrumentationmentioning

confidence: 99%

“…This method permitted essentially instantaneous measurement of displacements at multiple wall locations throughout the test, although there was a significant amount of time required for post processing. A more detailed discussion of this use of photogrammetry is discussed in Pierson (2009).…”

Section: Fig 1 Sketch Of Shaft B and Instrumentation Locationsmentioning

confidence: 99%