Patent ID: 6435777
Filing Date: 2002-08-20
Classification: E02D

Abstract:
A method of forming foundations for base reinforcement in which a bore hole is formed into the earth from the excavation surface of the foundations, a main foundation body is constructed and a base of an additional reinforcing material of high rigidity is-fixed in said main foundation body after said additional reinforcing material is fixed in said bore holecharacterized in that said additional reinforcing material is disposed so that the resistance of said foundation body with respect to detaching forces is increased by the structural apportioning by said additional reinforcing material of a part of the tensile strain and the shear strain with respect to the earth and therefore for each additional reinforcing material: &Dgr;pr=(Nmax. cos&THgr;+Smax. sin&THgr;). tan&PHgr;where Nmax is the maximum axial force of said additional reinforcing material, Smax is the maximum shear force of said additional reinforcing material, &THgr; is the angle of placement of said additional reinforcing material, &PHgr; is the inner frictional angle of said base) and wherein the above formula expresses the increase in resistance &Dgr;pr which is maximized by the disposition of said additional reinforcing materials and wherein said resistance of the peripheral earth with respect to the detaching forces on the foundation body is increased as a result of an increase in the confining pressure due to said additional reinforcing material drawing the peripheral earth towards said main foundation body and said peripheral earth pushing said main foundation body wall face.