More obstruction strikes implicit wage and conditions volition instrumentality spot connected 3, 5, and 7 November, the RMT national has announced.
It threatens a week's worthy of disruption akin to erstwhile strikes, the BBC understands.
RMT wide caput Mick Lynch accused Network Rail of "dishonesty" successful negotiations.
Network Rail said it had a 2 year, 8% wage summation woody "on the array acceptable to beryllium enactment to our staff".
In abstracted disputes, RMT obstruction workers astatine London Underground and London Overground volition onslaught connected 3 November.
Ongoing disputes
There person been a bid of obstruction strikes successful the UK implicit the past months arsenic unions person clashed with Network Rail, bid firms and the authorities implicit wage and conditions.
For the latest strikes, the national said that Network Rail had "reneged" connected an earlier wage connection and "sought to enforce occupation cuts, much unsocial hours and detrimental changes to rosters".
The RMT has accused Network Rail of performing a "U-turn" connected its wage offer: 4% this twelvemonth followed by 4% adjacent year, positive benefits similar heavy discounted question for employees and their families.
Network Rail disputes this, and says it really made an improved connection by extending the warrant of nary compulsory redundancies by a further twelvemonth to January 2025.
"Unfortunately, the enactment of the RMT look intent connected much damaging strikes alternatively than giving their members a ballot connected our offer," Network Rail main negotiator Tim Shoveller said.
He added that the obstruction assemblage had a £2bn spread successful its fund "with galore less passengers utilizing our services".