2024年4月15日 · Terzaghi developed his bearing capacity equation for strip footings by analyzing the forces acting on the wedge abc in Fig. 12.6. The equation for the ultimate bearing capacity qu is Equations for Square, Circular, and Rectangular Foundations

Based on Terzaghi’s bearing capacity theory, column load P is resisted by shear stresses at edges of three zones under the footing and the overburden pressure, q (=γD) above the footing. The first term in the equation is related to cohesion of the soil. The second term is related to the depth of the footing and overburden pressure.

The details of the Terzaghi (1943) method for calculating bearing capacity of shallow foundations is given below. Ultimate Bearing Capacity. The bearing capacity is calculated according to the following equations for Terzaghi (1943) method. $$q_{ult} = c N_{c} s_{c} + \overline{q}N_{q} + 0.5 \gamma_{e} B N_{\gamma} s_{\gamma} $$

Terzaghi equation gives the ultimate bearing capacity based on the assumption that the water table is located well below the foundation. However, if the water table is close to the foundation, the bearing capacity will decrease due to the effect of water table, so, some modification of the bearing capacity equation will be necessary.

2022年3月2日 · Terzaghi (1943) developed a rational bearing capacity equation for strip footing, by assuming the bearing capacity failure of the foundation in general shear mode. The theory was an extension of Prandtl's theory (1921).

2025年2月7日 · Terzaghi’s Bearing Capacity Equation (For Shallow Foundations) Terzaghi’s equation is used for calculating ultimate bearing capacity (qᵤ) for strip footings: qu = cNc + γDfNq + 0.5γBNγ. Where: For square and circular footings, correction factors apply. 3. Calculation Steps. Step 1: Determine Soil Properties.

Terzaghi’s bearing capacity theory is useful to determine the bearing capacity of soils under a strip footing. This theory is only applicable to shallow foundations. He considered some assumptions which are as follows. The base of the strip footing is rough. The depth of footing is less than or equal to its breadth i.e., shallow footing.

2013年9月13日 · Terzaghi in 1943 gave a general bearing capacity theory for a strip foundation, called “Terzaghi’s Theory on Bearing Capacity Analysis“. For the first time, he developed his theory by incorporating the weight of the failure wedge in the analysis.

This paper presents an analysis of Terzaghi's bearing capacity equations, focusing on their application in determining the allowable and ultimate bearing capacities of soil for various footing types, including strip, square, and circular footings.

The details of the Terzaghi (1943) method for calculating bearing capacity of shallow foundations is given below. Ultimate Bearing Capacity. The bearing capacity is calculated according to the following equations for Terzaghi (1943) method. q ult = cN c s c + qN q + 0.5γ e BN γ s γ. Bearing Capacity Factors. N q = e 2(3π/4 - φ/2)tanφ 2cos ...