Patent ID: 6220789
Filing Date: 2001-04-24
Classification: E02D

Abstract:
A method of integrated construction of a building excavation shoring and building foundation, comprising the steps of:drilling a plurality of holes at spaced intervals across an area in which a building having an underground level is to be constructed, the holes being drilled at least to the depth of one underground floor level;setting building columns into said holes, the columns having upper ends at a level corresponding to the undersurface of a first floor slab of the building;stabilizing the columns with supporting material;securing the upper ends of the columns together with horizontal building beams to form a web;casting the first floor slab above the columns and horizontal building beams;installing exterior panels around the exterior of the building first floor area and supporting the panels vertically to define exterior walls; andexcavating the area under the exterior panels, first floor horizontal beams and slab, as excavation proceeds, lowering the exterior walls, as excavation proceeds to surround the underground area, acting as a shoring for the excavation.