Lateral Load Tests on Small Diameter Drilled Piers

 

Sanjeev Kumar

Department of Civil and Environmental Engineering,
Southern Illinois University — Carbondale, Carbondale, Illinois 62901

Denton Kort

Regional Manager, Loadtest, Inc., 2631-D NW 41st St., Gainesville, FL 32606

Alyass Hosin

Graduate Student, Department of Civil and Environmental Engineering,
Southern Illinois University— Carbondale, Carbondale, Illinois 62901

and

Say Chong Ng

Former Graduate Student, Department of Civil and Environmental Engineering,
Southern Illinois University — Carbondale, Carbondale, Illinois 62901

ABSTRACT

 

The lateral load tests on drilled piers described in this paper were performed as a part of a comprehensive drilled pier testing program initiated to determine if the coal combustion products (CCPs) from burning of Illinois pulverized coal can be used to construct drilled pier foundations without jeopardizing their structural capacity. A total of four piers were tested. Two piers were constructed using conventional concrete and two piers were constructed using concrete composites having different amounts of pulverized coal combustion (PCC) fly ash and bottom ash. All the piers had nominal diameter of 13 inches and were 25 feet deep. Load was applied by using one test pier as a reaction pier for the other. The piers were installed and tested at a site located in the Carterville campus of Southern Illinois University Carbondale. Results presented show that the lateral load-deflection response of the piers constructed using PCC fly ash and bottom ash was similar to that of piers constructed using conventional concrete.

KEYWORDS: Bottom Ash, Drilled piers, Flexural Behavior, Lateral Load

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