Russian Mine clearing tanks

[DRG]

Wiki says much the same thing in regards to the mine sweeps

Design work started again when the Winter War began: Leningrad factories Kirov Factory, Factory No. 185 and Factory No. 174 developed new models of mine sweeps for the T-26 and T-28 tanks in December 1939. Kirov Factory produced 93 new mine sweeps and Factory No. 174 produced an additional 49. These disc mine sweeps (metal discs 700–900 mm in diameter with a thickness of 10–25 mm on a common axis; the weight of the whole construction was 1,800-3,000 kg) were issued to army field forces in February and March 1940. Despite low explosion resistance (the discs would bend after the first mine explosion), these mine sweeps were used successfully by the 35th tank brigade and tank battalions of the 8th Army during the Winter War.

they also mention dozer blades were tried