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Archaeological investigation and excavation of E7 Monument

With an additional grant from the Global Heritage Fund, the Lerici Foundation conducted archaeological investigation and excavation of the E7 monument, in preparation for its future consolidation and restoration. Accomplishments included the following:

  • geophysical survey map of E7 area
  • geomorphological map of E7 area
  • archaeological excavation of the surrounding area and the enclosing wall
  • excavation of the interior room
  • installation of wooden supports for the northern door
  • installation of metal scaffolding for the whole E7
  • geometrical and crack pattern survey of the E7 monument
  • rehabilitation of the ancient Cham drainage system inside the enclosing wall

Archaeological investigation
The combined Italian-Vietnamese team conducted geophysical surveying on E7 with georesistivity, geomagnetic and susceptibility measurements. Topographic surveying with a total station to reconstruct the shape of the hill and install the topographic grid was also undertaken. Dislodged bricks from the E7 monument were sorted and classified for future re-use during consolidation and restoration works.

Architectural survey and research
All geometrical surveys of the E7 monument, including drawings of prospects, plans and sections were conducted by the Vietnamese team of architects, under the guidance of the Italian experts. All drawings were translated into Autocad.

Conservation of the enclosing laterite wall and drainage system
Archaeological works included the investigation of the area between monuments G2 and G3, testing of the foundation of G5, clearing of the debris on the eastern side of the G monuments, conservation of the enclosing laterite wall and rehabilitation of the drainage system of the G group of monuments. The conservation of the laterite enclosing wall started with the cleaning of the wall surfaces and survey of the internal filling, followed by the removal of tree roots, reconstruction of the foundation and the consolidation of the walls, using old bricks and lime and brick mortar.