Need recommendation on soft rock wash sample Safe Bearing Capacity

your logging is very poor, "rock pieces" or "disintegrated rock" is not a proper description. As a minimum you are missing rock type (pretty important dont you think), colour, grain size. just because its disintegrated doesn't mean that its a soft rock. It could be a hard rock that has undergone extreme shearing that has disintegrated it. You can get disintegrated granite for example. Have you tried to hitting it with a geological hammer or crushing between fingers.

Re bearing capacity treat it as a gravel and go from there.

You want Safe Bearing Capacity values at 1.5m, 3m, 4.5m and 6m? Do you also want us to write the report as well?