complete excavation with timbered sides

-This method can be used in firm subsoils.
-The centre of the proposed basement can be excavated first to enable the basement slab to be cast thus giving protection to the subsoil at formation level.
-sometimes called complete excavation

ground level
-face timbering left projecting as safety barrier
-150x150 raking struts at 2.000 c/c
-150x150 puncheons at 2.000 c/c
-150x 150 walings
-225x38 binders to both sides
-150x75 sole piece
-formation level
-225x75 sole piece
-firm subsoil