No, I don't think it is. The preserved one I was privileged to be able to visit and survey for the country park when it was dug open. That is a quarry on the outcrop - the shaft follows the beds - the ones further inland which are in the photos were deeper lying beds which had to be approached by a slope shaft that cut through the beds until they reached the horizon of the building stone bed. Cowmanb will no doubt correct me if I am wrong.
Oh, and the preserved one is of very limited extent - just a slope shaft with two working bays at the bottom when we went into it. It was especially nasty at the bottom, half flooded, very sticky mud, and VERY loose roof!