Which structural component in trench shoring provides lateral support?

In trench shoring systems, the component that provides lateral support is referred to as "whales." Whales are horizontal members that connect the uprights and help distribute the load across the trench walls, preventing soil collapse and maintaining stability. By securing the uprights in place and working in conjunction with the sheathing, whales effectively manage the lateral pressures exerted by the surrounding soil. This structural support is crucial for ensuring the safety of workers in excavated areas and for maintaining the integrity of the trench itself. Understanding the role of whales assists those in rescue and construction operations in safely managing excavation sites.