construction of railway embankments on loose beds without using any methods of soil improvement (e.g. stone columns in silt and clay beds, deep soil mixing method, jet grouting and also using micropiles individually or in groups form) leads to  reduction of embankment slope gradient, which significantly increases the volume of soil operation. generally, micropile as a reinforcing element with t...

The fractal approach to the study of soil structure, its dynamics, and physical processes appears to be a useful tool in reaching a better understanding of system performance. Nevertheless, the precise concurrent analysis of soil physical properties and fractal parameters seems to be important in order to evaluate the applicability of fractal concepts to soil science. The objective of this stud...

a semi-micromechanical multilaminate model is introduced here to predict the mechanical behavior of soils. this model is like a bridge between micro and macro scale upon the satisfaction of minimum potential energy level during any applied stress/strain increments. the concept of this model is based on a certain number of sampling planes which constitute the elastic-plastic behavior of the soil...

The influence of peat soil environment (PSE) on the mechanical properties cement-soil in area around Dianchi Lake and Erhai Yunnan Province has attracted much attention. This study explores change law UCS PSE, provides guidance for development sustained usage foundation. paper discusses preparation samples by adding humic acid (HA) cement to cohesive with low organic matter content (blending me...

nanocomposites based on phenolic resol and novolac resins and cloisite 30b were prepared. different kinds of phenolic resins and clay content were studied with respect to the morphology and mechanical properties of the polymer silicate layers. the phenolic resins, namely resol, novolac and their mixture and four different percentages of clay contents, 0.5, 1, 2 and 5 wt% have been considered. x...

Cellulose nanofibre (CNF), a material composed of ultrafine fibres wood cellulose fibrillated to nano-order level, is expected be widely used because its excellent properties. However, in the field geotechnical engineering, almost no progress has been made development techniques for using CNFs. The authors have focused on use CNF as an additive cement treatment soft ground, where added solidify...

To effectively utilize the solid waste-soda residue (SR) and fly ash (FA), a mixture of 70% SR, 20% FA, 10% clay was formed to produce soda soil (SRS). By adding cement and/or lime, four different SRS proportions were prepared. The compaction properties, mechanical dry–wet stability. Furthermore, mechanisms explored, improvement effect efficiency lime on performance analyzed. results show that ...

after harvesting, pistachio nuts are generally kept in storage before being exported. during handling, thenuts are exposed to external forces that cause mechanical damage to them. the increase of the mechanicaldamage is a function of storage conditions, especially temperature. this research investigated the effect ofstorage temperature (25, 5, -5, -15°c), on the mechanical properties of pistach...