That's not the only madcap soviet project to use nuclear bombs. https://interestingengineering.com/science/soviet-engineers-detonated-a-nuke-miles-underground-

That's not the only madcap soviet project to use nuclear bombs. https://interestingengineering.com/science/soviet-engineers-detonated-a-nuke-miles-underground-to-put-out-a-gas-well-fire https://interestingengineering.com/science/soviet-engineers-... The URL says it all. Remarkably it was actually a success, and they did this more then once!