WINS ACEC-DE 2014 Honors Award

Client University of Delaware

Services Provided
Construction Review Services, Geotechnical Evaluation, Supplemental Water Supply Evaluation and Grant Application Assistance

Project Description

Duffield Associates provided geotechnical engineering services for the proposed certified Interdisciplinary Sciences and Engineering Building (ISEB) and East Campus Utility Plant (ECUP) on the University’s Newark campus. Based on the subsurface conditions encountered by this evaluation, including a high groundwater table and variable depth to rock throughout the building areas, in conjunction with the significant loads anticipated for the proposed ISEB structure, Duffield Associates’ team recommended the use of small-diameter pneumatically drilled piles (e.g., micropiles or pin piles) for support of the proposed ISEB and ECUP buildings. The approximately 550 small diameter piles were drilled into rock, ranging in depth from 25 to 125 feet.

Our Construction Review Services have also included review of the following:

• deep foundation
• site excavations
• structural fill placement
• reinforced concrete
• floor flatness testing
• waterproofing membrane application
• structural steel
• masonry construction

Due to an aggressive construction schedule, our services have been adjusted to meet the project needs during foundation construction. Installation of the micropiles typically occurred from six days a week from 8 a.m. to 8 p.m. from the beginning of November through the end of January. Installation continued during rain, snow, freezing temperatures, and darkness.

Duffield Associates also provided ongoing construction review services for this project.