The project consisted of more than 60,000 liner feet of drilled shaft up to 60” in diameter and 95 feet in depth. More than 30,000 cubic yards of drilled shaft concrete was placed in the 1000 plus shafts on the project. The “fast track” “design as you go” nature of the project required detailed coordination between engineers, the owner, contractors onsite, and suppliers to ensure that the overall project remained on schedule and stayed within budget. The drilled shaft portion of the project was completed on schedule in under 9 months. The Balcones Fault geologic formation underneath the site provided for a wide array of subsurface conditions. Casings up to 40’ in length, bentonite slurry, and underwater concrete placement methods and equipment were all utilized to install the shafts in a timely fashion. “Low overhead” drilling and concrete pumping equipment was also used to install shafts inside existing materials storage buildings to help reduce the cost of the plant expansion.
GENERAL CONTRACTOR/PROJECT MANAGER: Zachry Construction Corporation • Andy Power
CIVIL SITE CONTRACTOR: CCC Group, Inc. • Paul Brunsvold, Project Manager
ENGINEERING AND INSPECTION: Consultec International, Inc. AMEC
OWNER: CEMEX Cement of Texas, L.P.
Jon Glynn, Project Manager • Greg Hein, Project Engineer