Foundations supporting infrastructure built on soft and compressible marine soil are unlikely to sustain due possibility of undrained shear failure or excessive settlement the soil. This necessitates importance implementing an adequate ground improvement strategy. Among different techniques, reinforcing by installation stone columns is one most successful methods in terms long-term stability fo...

Three different liquefaction mitigation techniques for an earthen embankment resting on saturated loose cohesionless soil have been compared in the present study as densification of foundation soil, stone column mitigation, and hybrid pile-stone mitigation. Numerical modelling has done using finite element assuming plane strain condition. Liquefaction behaviour modelled effective stress-based e...

We present a numerical case study for modeling and simulation of upstream downstream processes monoclonal antibody (mAb) production. apply systematic intuitive methodology an existing process process. The resulting models are based on differential mass balances kinetic expressions the reactions adsorption. Mass fedbatch reactor yield model consisting five ordinary equations (ODEs). is conducted...

In this study, the method according to Indonesian National Standard (SNI) was applied. The objects test in form of cylindrical concrete which fine aggregate pumice sand and ordinary sand. made were tested for compressive strength. There 6 study with a size 15 cm x 30 cm. detail, 3 sand, while other coarse all crushed stone. result shown use as substitute can reduce strength by 23.53%. However, ...

Abstract This article reviews the numerical approach in stone column practices and presents benefits of columns as a ground improvement soft soil to support an embankment dam. In this article, methodological approaches numerically modeling both 2D 3D studies, well selection appropriate constitutive model are discussed. The for installation validation procedures used ensure accuracy analysis als...

This investigation aims to determine whether it is feasible use the limestone rocks found in Al-Samawa stone quarry southern Iraq as stationary phase column chromatography separation. Together with chromatographic application, physical and chemical characteristics of are examined. SiO2, SO4, PO4, NO3, Cl negative ions, while Ca, Mg, Na, K, Li positive ions. The samples characterized via analysi...

Installation of granular columns is a cost-effective and versatile in situ technique to improve the shear strength, settlement, drainage behavior weak soils. It involves backfilling vertical boreholes ground with materials stiffer than native soil, such as stone or compacted sand. However, massive use overexploitation sand natural aggregates have depleted their reserves recent decades, causing ...