Home /
Expert Answers /
Civil Engineering /
when-is-34-benching-34-considered-an-effective-trench-protective-method-when-the-trench-is-deeper-th-pa777
(Solved): When is "benching" considered an effective trench protective method? When the trench is deeper than ...
When is "benching" considered an effective trench protective method? When the trench is deeper than 20 feet. In all types of soil. In Type A or B soil, not exceeding a certain depth. Only in solid rock.
