Adding two new elevators to the existing Wall Building at Coastal Carolina University in Conway, SC
Problem
Montieth Construction Corp. was contracted to install two new elevators as part of an expansion to the existing Wall Building at Coastal Carolina University in Conway, SC. However, the soil strength beneath the proposed elevator shafts was unknown and unverified, presenting a potential risk to the structural performance and long-term stability of the new additions. With no clear geotechnical data available, a reliable foundation solution needed to be designed with flexibility and adaptability in mind.
Solution
CNT Geotechnical began by installing two test piles and conducting on-site load testing, which revealed that each pile would need to support a capacity of 140 kips. Based on the test results, CNT’s engineering team designed a foundation system utilizing their 4-inch grouted helical piles, installed to a depth of 45 feet. This approach provided the necessary load capacity and settlement control, ensuring a stable foundation for the new elevators while minimizing disruption to the existing structure and campus operations.
