The paper performs three-dimensional elasto-plastic finite element analyses to obtain the stress and deformation characteristics of the abutments and the dam.
The primary purpose of the parametric study was to arrive at proper modeling techniques and assumptions to represent nonlinear response characteristics of bent columns, pounding, abutment-soil interaction, and shear keys to enable accurate and reliable system response prediction and assessment.
Subsequently, the influence on the bridge response of backfill and arch characteristics, loading position, arch shape and abutment movements are investigated through a comprehensive parametric study.
This is of high importance because it allows studies on variable implant properties influencing the biofilm formation like surface roughness, surface energy and material, chemical characteristics and special design features of implant-abutment configuration [ 37].
The randomness of the friction angle of the geotechnical layer directly under the base of an abutment is shown to have the greatest effect on the probabilistic characteristics of the stability.
One reason that this pounding phenomenon is so common is due to the differences between the dynamic characteristics of a girder and the relatively rigid adjoining abutments.
On the basis of the characteristics of the deformation and the distribution of the pressure on the abutment in the retained gob-side entryway, the procedure for retaining the entryway can be divided into advanced, backfilled, and lagging scopes, as schematically plotted in Fig. 4.
In addition, several animal studies have reported a tight adaptation of the connective tissue to the abutment presenting a thin avascular and collagen fiber-rich, as a scar-like tissue characteristics [ 13, 23].
In front of face coal wall, the main characteristics of top coal and roof movement are mainly horizontal compressive deformation under abutment pressure; in the rear of the face coal wall, the characteristics of roof movement are mainly fractures and subsidence, the characteristics of top coal movement are mainly vertical caving movements caused by roof fractures and subsidence.
The adopted bridge model explicitly addresses nonlinear characteristics of the isolators and the dampers, the dynamic behavior of the abutments, and the effect of pounding between the neighboring spans against each other as well as against the abutments.
From the results of previous laboratory tests that were obtained within the scope of the EU co-funded research project "Research voucher", the basic characteristics of the building materials for the geosynthetic reinforced soil (GRS) bridge abutments, as well as the deformation properties of the typical reinforced soil were obtained.
