He was charged with inciting others to oppose Beijing's rule in Tibet.
The move aims to further tighten restrictions in areas opposed to Beijing's rule.
Local authorities had proceeded with excavations without central government permission.
Khenpo Kartse has been detained since December last year.
It is the second protest challenging Chinese rule to be staged in the area in less than a month.
Tenzin Delek Rinpoche is serving a life term following what supporters call a conviction on trumped-up charges.
Monks must seek approval from authorities for travel and other activities.
Recently built religious structures must be demolished, and 'underage' monks expelled from the monasteries.
He calls out for the Dalai Lama's return and for freedom for Tibet.
The number of Tibetan burning protests against Chinese rule rises to 133.
But talks between the religious leader and China on Tibet's political status remain stalled.
Word of the August incident was delayed due to communication blocks by authorities.