نتایج جستجو برای: soil penetration resistance
تعداد نتایج: 582809 فیلتر نتایج به سال:
Studies to prediction of soil moisture constants and other properties rather than direct measurements were never dwindle importance. Models derived from obtained easily. Therefore, in this study focused on the predictability some constants, whose determination was often difficult time-consuming, penetration resistance measurements. In improvement alternative models for estimation constants; add...
Suction caissons are widely used foundations in offshore engineering. The change excess pore pressure and seepage field caused by penetration suction significantly affects the soil resistance around caisson wall tip, also deformation of within adjacent to caisson. This study uses Arbitrary Lagrangian–Eulerian (ALE) large solid-fluid coupled FEM investigate changes during process installation sa...
A cone penetrometer is widely used in tillage and off-road mobility research as an indicator of soil strength and density characteristics. Light-weight, manually operated units are especially useful in recording cone index determination at remote field locations. An electronically hand-pushed soil penetrometer with a microcontroller-based data logging system was designed and fabricated to provi...
offshore pipelines used for oil and gas transportation are often buried to avoid damage from fishing activities and to provide thermal insulation. thermal expansion and contraction of the pipeline during operation can lead to lateral or upheaval buckling. a safe buried pipeline design must take into account a reliable evaluation of soil uplift resistance and pipe embedment depth. while the cost...
The aim of this study was to produce mulch by combining natural mineral and organic substances in order to reach soil stabilization and improve soil physical and mechanical properties in Koopal area. The effects of organic mulch (at 3 levels of O1: combination of 1% sugarcane bagasse biochar+0.5% gum Arabic+0.5% gelatin; O2: combination of 3% sugarcane bagasse biochar+1% gum Arabic+1% gelatin; ...
Offshore pipelines used for oil and gas transportation are often buried to avoid damage from fishing activities and to provide thermal insulation. Thermal expansion and contraction of the pipeline during operation can lead to lateral or upheaval buckling. A safe buried pipeline design must take into account a reliable evaluation of soil uplift resistance and pipe embedment depth. While the cost...
Pile base resistance is an important part of the ultimate bearing capacity, and soil within a certain range above below pile end contributes to resistance. In general, calculated according average value strength in current calculating method, so it very determine influence Based on parameters results cone penetration test LiuHua 11-1 site South China Sea, difference by different methods, regula...
investigation of projectiles penetration phenomenon has been carried out in non-cohesive soil (sand) targets under dry, saturated and compacted conditions. analytical studies have been performed on the linear and non-linear soil models to obtain penetration depth formulae for ogival nose projectile and the results are verified by experimental studies. in present work, three ogival nose projecti...
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