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首页> 美国政府科技报告 >The Behaviour of Footings Resting on a Non-Homogeneous Soil Mass with a Crust. Part II - Circular Footings
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The Behaviour of Footings Resting on a Non-Homogeneous Soil Mass with a Crust. Part II - Circular Footings

机译：作者：郝建国，邵明安，岩土力学ROCK aND sOIL mECHaNICs地壳非均质土体基础的性状。第二部分 - 圆形基础

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The behavior of circular footings resting on a non-homogeneous elastic soil with a crust is investigated. The stiffness of the crust is assumed to be either constant or to decrease with depth while the stiffness of the underlying soil increases linearly with depth. Consideration is given to the effect of layer depth, crust depth and the rate of variation of stiffness within the crust and the underlying soil, upon the settlement profile. The behavior of circular footings is then compared with that of strip footings and the relative importance of the crust and the underlying soil parameters is discussed. The influence of cross-anisotropy upon footing response is briefly examined and the effects of neglecting anisotropy are indicated for a number of soil profiles. The results of this study are presented in the form of influence charts which may be used in hand calculations to estimate the settlement of circular footings for a wide range of practical cases. The use of these charts is illustrated by means of a worked example.

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