In Kingdom of Saudi Arabia, there are several areas where expansive soil exists in the form of variable-thicknesses layers in the developed regions. Severe distress to infrastructures can be caused by the development of heave and swelling pressure in this kind of expansive shale. Among the various techniques for expansive soil mitigation, the removal and replacement technique is very popular fo...

The use of nuclear backscatter moisture -density gages for soil compaction control has gained a great deal of favor during the past several years . However, before this type of equipment can be applied to routine field control, several factors influencing the operation of the gage must be investigated. Various techniques for expressing nuclear results were studied, and the results indicate that...

The diffusive transport of volatile organic compounds (VOCs) in the subsurface at petroleum spill sites can significantly affect vapor migration from sources to buildings and ground surface. Thus, knowledge of compound-specific vapor transport and bio-attenuation is of great interests to those who must identify risks and make corrective action decisions for petroleum spill sites. In this work, ...

The fine-grained surface material at the Apollo 11 landing site is a brownish, medium-gray, slightly cohesive granular soil, with bulky grains in the silt-to-fine-sand range, having a specific gravity of 3.1 and exhibiting adhesive characteristics. Within the upper few centimeters, the lunar soil has an average density of about 1.6 grams per cubic centimeter and is similar in appearance and beh...

An initial application of CPT results is to evaluate soil type and soil stratigraphy. One of the more common CPT-based methods to estimate soil type is the chart suggested by Robertson et al (1986) based on cone resistance, qc and friction ratio, Rf. Although newer charts have been developed based on normalized parameters, the simple chart based on qc and Rf is still popular because it is easy ...

We describe two experiments performed on a 9-m-radius geotechnical centrifuge to evaluate dynamic soil–structure interaction effects the cyclic failure potential of fine-grained soil. Each experiment incorporated three different structures with range mass and stiffness properties. Structures were founded strip footings embedded in thin layer sand overlying lightly overconsolidated low-plasticit...

depending on the moisture contents, the soil behavior is revealed as solid, semisolid, plastic and liquid states. liquid limit is an important property of fine-grained soils and casagrande and cone penetrometer are two different methods employed for the determination of liquid limit of the soil. in forest environment, the casagrande method is the classic method for liquid limit determination, b...