The link was sent to your email.

We were unable send the link to your email. Please check your email.

Missing captcha code. Please check whether your browser is not blocking reCAPTCHA.

Invalid captcha code. Please try again.

Online Help

GEO5

Tree
Settings
Product:
Program:
Language:

Véas-Souche Theory

The critical force Ncr is calculated according to the formula [1]:

where:

lp

-

effective micropile length (free length + 1/2 root length)

EI

-

bending stiffness of micropile reinforcing tube

Er

-

reaction of soil in the horizontal direction

m

-

number of half-waves

The critical force Ncr is taken as a minimum of function (1). It is achieved for the length of half-wave:

The number of half-waves n is based on formula (2):

Let's introduce the dimensionless parameter ω, calculated according to the formula:

where:

lv

-

length of micropile above the terrain

and another dimensionless quantify, taken according to the formula:

Relations between formulas (3), (4) and (5) are described in the article [2] using the charts. The critical force Ncr is calculated from the dimensionless quantify (5), which is determined from the charts for known values of ω and m.

Literature:

[1] Timoshenko, S. P.: Theory of Elastic Stability, New York, 1936

[2] Véase, Souche: Étude du fla,berment de pieux partiellernent immergés dans offrant latéralement une réaction élastique pure, Annales de I’ITBTP, No. 423, Sene Soils et Foundations, 187, mars - avril 1984, str. 38 - 60 (in French)

Try GEO5 software yourself.
Download Free Demoversion.