Yeah Judo and stuff Help when the strengh difference isn't to bad but here we have a gigantic strength difference. As you guys like to point out Thing can hang with Hulk until Hulk gets angry than Hulk simply overpowers him. Cain is always at an Angry Hulk level. If they trip him it is a lot harder to do than alot of people seem to realize. For instance they reach down to grab both his feet he simply reaches down and grabs them. They go to kick him in the back of the leg. Juggernaut sends them flying with one good hit. They go to throw cain cain simply tenses his body and pulss back the throw is stopped as simple as that.
There's a strength difference sure, but it not between 98 pound weakling vs. body builder. It's between guys who can uproot a city block vs. a guy who can uproot 1/2 the city. That by itself makes a world of difference. The difference being that Cain's body weight is nothing to these guys (as theirs is nothing to him). And there's two of them. Cain goes to punch the Thing, and Colossus nails him from behind. Cain goes to kick Colosuss, and Thing kicks Cain's other leg out from under him. (ignoring for a second that a beaten down Thing was able to trip Juggernaut quite easily).
Forget even bodily contact. All of these guys are capable of using everything they can get their hands on as a missle. That not good enough, any of them can hit the ground and cause the sidewalk to shatter under the rest of them. Then there's thunderclaps galour going around.
The point is that I'm not arguing that they're going to put him down for the count, but there are plenty of ways for them to keep Juggernaut busy for 20 minutes. Both Thing and Colussus are strong enough, fast enough, skilled enough, and smart enough to do that.
20 minutes later, they might be a bit worse for the wear, but they still make it long enough for Reed to run downstairs with his de-Juggerfication ray and put it to use.