Stub bulkhead

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Term	Definition
Stub bulkhead	A bulkhead form used in monolithically placed concrete tunnel linings which extends from the tunnel invert to an elevation of sufficient height to ensure a proper seal of the fluid concrete to the invert of the tunnel lining form. Stub bulkheads are utilized in conjunction with unformed sloping construction joints above them. The height of the stub bulkhead can be varied to establish the required length of sloping joint.

Term

Definition

A bulkhead form used in monolithically placed concrete tunnel linings which extends from the tunnel invert to an elevation of sufficient height to ensure a proper seal of the fluid concrete to the invert of the tunnel lining form. Stub bulkheads are utilized in conjunction with unformed sloping construction joints above them. The height of the stub bulkhead can be varied to establish the required length of sloping joint.