Construction giant Grocon will return to the Supreme Court on Monday in an attempt to break an industrial stand-off that stopped work on a big Melbourne building project last week.
Grocon is seeking contempt orders against officials at the Construction, Forestry, Mining and Energy Union (CFMEU), who plan to continue blockading the Emporium site in the city's CBD, in defiance of a Supreme Court order.
There is some respite on Monday, with construction workers on a scheduled rostered day off.
A Grocon spokeswoman confirmed lawyers for the group would return to the Supreme Court in Melbourne at 10.30am (AEST).
Workers are defying a Supreme Court injunction ordering them to lift their blockade.
Police have been called in twice during the dispute to help Grocon employees enter the building site and cross the blockade.
A police spokeswoman said officers will continue to monitor and assess the situation.
A Grocon spokesman said the blockade was unlawful and none of the participants was a Grocon employee.
"It is a rostered day off in Victoria so we are hopeful that, come Tuesday, common sense will have prevailed and the CFMEU will let our people go and do their jobs," the spokesman said in a statement.
"Our employees, some of whom who are union members and some not, just want to be allowed to go to work safely."
Grocon chief executive Daniel Grollo said his workers were being threatened and intimidated to join the illegal CFMEU blockade and he has recently spoken with more than 150 Grocon employees.
"Grocon employees and sub-contractors (and in some cases their families) are being threatened and intimidated to join the illegal CFMEU action," Mr Grollo said in a Herald Sun opinion column on Monday.
"After two weeks of being intimidated and blockaded from going to their jobs, they are frustrated that people still don't seem to understand what is really happening to them."
Mr Grollo said Grocon workers included CFMEU members and non-union members and all of them wanted to be able to go to work.
There was no industrial dispute and no one was on strike, he said.
"The men and women of Grocon, CFMEU members and non-union, are standing together and challenging one of the most powerful unions in this country to leave them alone," he said.