One way of preventing subsidence is to see that the packing or stowing underground is done as completely as possible.
I have always held that there is need for the compulsory stowing of waste, gobs or goaves.
He asked me what about the stowing of waste, and said that it should be made compulsory.
I say it is nonsense to say that the stowing of rubbish in the mines will necessarily prevent a lot of accidents.
I know that there are arguments which will be advanced by the big firms that they cannot undertake systematic packing or stowing.
I agree that with longwall mining, where no packing or stowing takes place, the surface drops more rapidly.
No matter what is done in stowing and packing, if 6 ft.
Pneumatic stowing is used on a very limited scale for packing waste returned from the surface, when it is needed for roof control.
