If your SQL Server Transaction logs are exploding, you can shrink them using following commands:
Check first if their are any pending transactions:
1: DBCC OPENTRAN(<TransactionLogName>)
If there are no pending transactions, you can safely execute following command:
1: USE DatabaseName
2:
3: GO
4:
5: DBCC SHRINKFILE(<TransactionLogName>, 1)
6:
7: BACKUP LOG <DatabaseName> WITH TRUNCATE_ONLY
8:
9: DBCC SHRINKFILE(<TransactionLogName>, 1)