冲塌

冲塌	chōng tā	to cause (a dam) to collapse
冲	chōng	(of water) to dash against / to mix with water / to infuse / to rinse / to flush / to develop (a film) / to rise in the air / to clash / to collide with
冲	chōng	thoroughfare / to go straight ahead / to rush / to clash
冲	chòng	powerful / vigorous / pungent / towards / in view of
塌	tā	to collapse / to droop / to settle down