What is the maximum height distance for the shear section relative to the supporting main surface?

The maximum height distance for the shear section relative to the supporting main surface is critical in ensuring the structural integrity and proper functioning of underground storage tanks (UST). A height distance of 1/2 inch is deemed acceptable as it mitigates the likelihood of excessive shear stress and potential failure points in the system.

In UST installations, proper spacing and alignment are crucial to prevent leaks and ensure that the tanks are effectively supported by the surrounding environment. Design standards often dictate specific measurements to adhere to engineering best practices. With the 1/2 inch guideline, there is a balance between allowing some movement while maintaining structural stability, which is especially vital given the potential for ground shifts or settling over time.

This measurement reflects the consensus derived from industry norms and standards regarding the durability and performance of underground systems. By adhering to this standard, installers contribute to the longevity and safety of UST installations.