AI Zhi-yong, ZHANG Yi-fan, WANG Lu-jun. Extended precise integration solution for plane strain problem of transversely isotropic multilayered soils[J]. 2018, 39(5): 1885-1890.
DOI:
AI Zhi-yong, ZHANG Yi-fan, WANG Lu-jun. Extended precise integration solution for plane strain problem of transversely isotropic multilayered soils[J]. 2018, 39(5): 1885-1890.DOI: 10.16285/j.rsm.2016.1207.
Extended precise integration solution for plane strain problem of transversely isotropic multilayered soils
the extended precise integration method is used to solve the plane strain problem of transversely isotropic multilayered soils. Extended precise integration method is of high accuracy and efficiency
which is an effective method to solve differential equations. Compared with analytical methods
it can save a lot of time for theoretical derivation. Starting with the governing equations of elasticity in Cartesian coordinates
the matrix differential equation in the Fourier transform domain is derived. Then
the establishment and combination of adjacent layer elements are introduced
and the extended precise integration solution of multilayered soils subjected to internal loads can be obtained further. The comparison with existing results verifies the accuracy and correctness of this method
and numerical examples are presented to elucidate the influence of transverse isotropy
stratification and load position. It turns out that the vertical displacement decreases with the increase of modulus ratio n
and increases with the increase of modulus ratio m. Besides
soils above the loading point is more sensitive to change of load position
while the modulus of upper soils is more important to the results of vertical displacement
and stratification of the soils has more significant influence on vertical displacement compared with vertical stress.