When you have surely given three talaqs to your wife in the presence of ten persons then all the three talaqs took place and your wife became irrevocably divorced (mughallazah bayina) and haram for you. Talaq shall take place and it does not have any impact on talaq whether she accepts it or not. Do not have any doubt. Talaq does not depend on the confirmation of the wife, as soon as the husband pronounces the word of talaq, it takes place immediately.
Allah knows Best!
Darul Uloom Deoband