When archaeological investigations were frustrated by existing tombs, be they Jewish, Muslim or Christians, we used to say that the dead are more powerful than the living. Graves are usually respected by archaeologists. Fake tombs, however, should not be respected. See this report: Fake tombs near the Eastern Wall of the Temple Mount
MK Nisim Ze’ev (Shas) said the matter was a very serious one. “The Jerusalem Municipality is allowing complete abandonment of territory and assets,” he said. “The Arabs are trying to conquer the Land of Israel in every possible way. If we do not wake up to their conniving ways we will find ourselves before a gaping chasm. We need to plow the area and take down all of the fictitious tombs.”
Pictures of the fake tombs near the eastern Wall of the Temple Mount can be viewed in this article [Hebrew].
Hopefully, the un-dead in the fake tombs will not be so powerful when their un-existing remains and their rough stone enclosures will be removed.