TIVERTON — The School Committee yesterday failed to win an injunction to block the teachers’ union from picketing on Monday at the workplace of the committee chairwoman, St. Anne’s Hospital in Fall River.

Judge Vincent Ragosta in Superior Court, Newport, denied a request for injunctive relief after a conference with lawyers for the School Committee and the union, the NEA-Tiverton.

The School Committee chairwoman, Denise deMedeiros, an emergency room nurse, says the union is trying to harass her and compromise her ability to do her job. Efforts to reach her yesterday were unsuccessful.

The union had given St. Anne’s 10 days’ notice of its plan to conduct informational picketing “out of an abundance of caution,” in light of one legal interpretation of precedent-setting cases before the National Labor Relations Board, according to Patrick Crowley.

He is deputy executive director of the union’s state affiliate, the Rhode Island Education Association.

Yesterday, union president Amy Mullen said the informational picketing, at 2 p.m. on Monday, is intended to call public attention to the stalemate in contract negotiations in the hope that the spotlight will force the School Committee back to the bargaining table.

The committee declared an impasse in court-ordered mediation in October and filed for nonbinding arbitration. The same court order, issued in early September, requires teachers to work without a contract.

Meanwhile, Mullen said, two teachers who had been suspended with pay for printing an anonymous letter critical of deMedeiros in the union newsletter were notified yesterday that they will have disciplinary hearings with the School Committee on Wednesday morning at 8:30.

The time of the hearing not only requires the School Committee to pay for substitute teachers for the two teachers and for herself as union president, Mullen said, but is calculated to minimize attendance should the teachers decide to have the session in public.

Mullen said the entire executive committee of the union approved the newsletter in question.

The teachers, Christina Hellman and Christopher Fielding, have not yet decided whether to have an open or closed hearing, Mullen said.

She said there is no reason the committee couldn’t have scheduled the session outside school hours.

gmacris@projo.com