At present, the bearing capacity of pile foundation is usually determined by the cone penetration test (CPT) test. The empirical formula was used in practice, but the effect of excess pore water pressure genera
15.2.1.1 Static Factor of Safety as Indicator of Vulnerability Force Equilibrium For excavations vulnerable to gravity-driven failures, the support capacity is established by multiplying the anticipated gravitational demand by an acceptable load factor, such as a factor of safety FSLoad in terms of fo...
For the static pressure pile, the most important is to determine the standard value of ultimate bearing capacity of single pile. At present, the bearing capacity of pile foundation is usually determined by the cone penetration test (CPT) test. The empirical formula was used in practice, but th...
Additionally, drawing upon Meyerhof’s theory of ultimate bearing capacity, a revised calculation formula for pile penetration resistance in both uniform and pebble-interbedded sandy soil foundations has been formulated. This formula can be employed to estimate the pile penetration resistance of static ...
The soil when subjected to dynamic load exhibits greater than static load-bearing capacity because of the inertia of the soil. In order to penetrate thelunar surfacewith a shaft or rod being driven with hammer blows, it is necessary to overcome the soils dynamic ultimate bearing capacity. The ...
Dynamic Formulae Attempts to determine pile capacity using dynamic analysis date back to the 19th century, when a dynamic formula that considered the energy of the pile driving hammer and the set of the pile was developed to find bearing capacity. In the early 1940s, the results of a large...
Load eccentricity decreases the ultimate vertical load that a footing can withstand. This effect is accounted for in bearing capacity analysis by reducing the effective area of the footing according to empirical guidelines. The calculation method of effective area is detailed in the section title “C...
Bearings used in the seismic isolation of buildings can be subjected to large horizontal deformations combined with high axial loads from overturning forces during strong shaking. Elastomeric bearing design requires an evaluation of the critical load capacity under this combined loading to ensure stability...
improving the load capacity of the bearing. Liu et al. [15] provided a theoretical analysis of the restoring force of ultrasonic levitation bearings using fluid lubrication theory. Li et al. [16] established the relationship between the resonant frequency, surface roughness of the transducer, gas...
Aimed at two kinds of aerostatic bearings normally used in zero gravity simulation test,formulae for throttling orifices’ diameter,flow and load capacity under conformal transformation are deduced,finite element modeling and solving methods are investigated,and some examples are given to prove the resu...