After some temple artifacts were found the Arabs began running all dirt through a rock crusher before dumping it. But the damage to the temple mount is critical. Nobody in their right mind digs behind a retaining wall with a bulldozer, you need to use a backhoe for that. A bulldozer digs dirt by pushing it against the dirt in front with great force. When the dirt has nowhere to go, it goes up and is scooped away. Behind a retaining wall, (which the entire temple mount is), the retaining wall just gives away.
The damage is extreme, the wall that have been falling down are on the other side of the mosque from the digging. This shows that the entire foundation of the Mosque has been displaced, and explains the cracks that developed in the dome of the mosque last year.
Domes are like egg shells, very strong until they crack. And once cracked there is no way to fix them besides tearing them down and rebuilding them. To top it off the Al Asque Mosque, (the gray one) is built over a huge cistern. If the dome crumbles it will pile drive the structure into the cistern. All that will be left is a hole in the ground full of rubble.
Poetic Justice. The Arabs broke the building codes by using a dozer up there, and having kept the Jews off of the Mount for three years while they did it, they cannot even blame it on the Jews with any credibility.