The objective of the present study is to make a database that describes leaching-permeability behavior collapsible gypseous soil. data will be implemented develop ANN prediction models for predicting saturated coefficient permeability and percentage solubility by weight. complex soil tedious time consume in testing have driven researchers use Artificial Neural Network (ANN) as tool prediction. ...

The pile’s ultimate capacity or failure load must be computed by some criteria using load-settlement curve data gathered during the pile test. Many scholars have proposed several approaches for evaluating in past. This study compared different to predict piles with two lengths-to-diameter ratios embedded gypseous soil gypsum content of 60% under soaked and unsoaked conditions. Two types were us...

Capillary rise is a phenomenon that must be considered an inevitable factor when dealing with unsaturated gypseous soil. This study investigates the behavior of soil under capillary action, where different gypsum content and densities are experimentally tested in developed laboratory model consisting Transparent pipes 1 m long 0.05 diameter. All placed inside rectangular basin dimension (1500×5...

This work investigates experimentally the effect of using a skirt with square foundation 100 mm width resting on dry gypseous soil (i.e., loose 33% relative density), and subjected to an inclined load. Previous works did not study use skirted rested The investigated was brought from Tikrit city 59% gypsum content. Standard physical chemical tests selected were carried out. Model laboratory out ...

Gypsum is a soluble material, and it one of the problematic components in soil west Iraq. Al-Najaf governorates Iraq which suffers from gypsum content different levels. The city mainly sand-sized particles bonded by percentages gypsum. main problem this component dissolution upon wetting process. This paper investigates effect decreasing matric suction (wetting) on deformation under specific st...

Collapsibility of gypseous soils may cause excessive settlement and severe damage to engineering structures. Many improvement methods have been employed reduce the collapsibility these soils, such as by using physical or chemical additives. The improved has conventionally evaluated odometer test, which not accurately replicate field conditions because small size test specimens. In this research...