The ancient city of Cahokia, located in southwest Illinois, was the largest Native American community north of modern-day Mexico and was best known for the large, mound like structures they built. Emerald Mound is considered to be a part of this ancient Mississippian culture and is located to the east of Cahokia. In a 1940 aerial image of Emerald Mound, there are two linear, parallel features r...

The design and execution of consolidation treatment of settled foundations by means of injection of polyurethane expanding resins require a proper investigation of the state of the foundation soil, in order to better identify anomalies responsible for the instability. To monitor the injection process, a procedure has been developed, which involves, in combination with traditional geotechnical t...

Calculated parameters (soil layer resistivity, soil thickness, and the number of layers) horizontally layered are usually obtained based on measured apparent resistivity under different measurement distances, which significant for design, operation, maintenance grounding grids. Most existing calculation methods just trying to make results approach data, ignoring relationship among calculated pa...

The semi-arid sagebrush steppe in the western United States faces pressures from agriculture industry, recreation use, invasive grasses, and a changing climate. A key to facilitating healthy management of this ecosystem is understanding distribution behavior soil moisture vadose zone both natural agricultural settings. Within unsaturated environments, spatially temporally heterogeneous, changes...

The present work envisages the possible geometry of a contaminated plume of groundwater near hospital facilities by combining GIS (Geographic Information System) and geophysical methods. The rock underlying the soil and thin sedimentary cover of the study area is moderately fractured quartzite, which makes aquifers vulnerable to pollution. The GIS methodology is used to calculate the area that ...

Ground response analyses are mostly used for the development of design response spectra in the modern earthquake engineering. After 1999 Marmara Earthquake, the damages were mostly related with unavailable soil conditions and this unavailability were analysed according to liquefaction analysis. The other analyses which cover the dynamic soil properties were not studied in detail. In this study,...