Preliminary Study on Vertical Subsoil Participating Mass

Abstract

A quantificational calculation method of participating mass of foundation vertical vibration is presented in this paper. Vertical subsoil participating mass of strip and rectangular foundation are preliminarily calculated based on Boussinesq’s solution of subsoil additional stress and equivalent-load method. That is, the subsoil participating mass can be calculated only prescribing the isoline of additional stress. The method is suitable for adopting by corresponding codes for it avoids considering complicated influencing factors of subsoil.

Numerical Research of Lightweight Foam Concrete Replacement Method of Deep Soft Foundation Treatment of Low-Filled Embankment

“…The additional stress under the slope toe goes up and then down with the deepened underground depth. This is because the transverse shape of the additional stress contour is similar to a symmetrical "bubble" [52], and the axis of symmetry is at the embankment center…”

Experimental and Numerical Study on the Strain Behavior of Buried Pipelines Subjected to an Impact Load

“…In a collision, the contact area between the rockfall and the soil is smaller than the surface of the soil and, furthermore, the length of the pipeline is relatively infinite; thus, Fmax can be regarded as a vertical concentrated load that can be calculated by Equation (7), and its sketch is depicted in Figure 3, in which Fmax is the vertical concentrated load which acts on the coordinate origin. The vertical pressure ( v q ) at a certain position in the soil, i.e., point M as shown in Figure 3, can be expressed as follows [33]:…”

“…Substituting Equations (12) and (13) into Equation (10), we can obtain the pressure from the rockfall impact force transmitting through the soil above the pipeline as shown below. The vertical pressure (q v ) at a certain position in the soil, i.e., point M as shown in Figure 3, can be expressed as follows [33]:…”