No, you can't force.
But you can put a team close together, they don't have to work more than 8hrs/day. But if they meet on weekends, on trips, bbq's, there wil be shoptalk. That is good for the project. In most cases.
I used to work for an 'offshore pipeline desig company' hard work, drinks on friday evening, family BBQ on Saturday.
Lots of fun, and everybody was ALWAYS talking about kids, dogs and work.