Recently, the bio-mediated soil improvement techniques have gained an increasing attention. In this method, bacteria was cultivated aerobically in laboratory and added to with reactant solutions such as urea calcium chloride. Most of existing studies are on sandy soils a few researches done silty soils. However, most nature compounds fine-grained coarse-grained soils, silt does not very good re...

This study aimed to evaluate the p-y behavior of pile foundations installed in saturated silty sand subject cyclic lateral loading. Model piles were with three relative densities (40%, 70%, 90%), and loads magnitudes repeatedly applied. The model test results revealed that as loading was applied piles, soil around became densified loose (relative density 40%), stiffness curve increased. In cont...

The successful establishment of agricultural crops depends on sowing quality, machinery performance, soil type and conditions, among other factors. This study evaluates the operational quality of mechanized peanut sowing in three soil types (sand, silt, and clay) with variable moisture contents. The experiment was conducted in three locations in the state of São Paulo, Brazil. The track-samplin...

Vegetated buffer strips were evaluated for their ability to remove waterborne Cryptosporidium parvum from surface and shallow subsurface flow during simulated rainfall rates of 15 or 40 mm/h for 4 h. Log(10) reductions for spiked C. parvum oocysts ranged from 1.0 to 3.1 per m of vegetated buffer, with buffers set at 5 to 20% slope, 85 to 99% fescue cover, soil textures of either silty clay (19:...

Most of the infrastructure investments and earthworks not requiring deep foundations are usually designed in vadose zone to avoid excessive groundwater-structure interactions. The mechanical behaviour soil material, under partially saturated conditions, is greatly influenced by pore-water tension, known as suction, characteristics Soil Water Retention Curve (SWRC). In present paper, SWRC a silt...

Soils and foundation of Bayon temple Angkor Thom has been studied since 1994 by Japanese Government Team for Safeguarding (JSA). The main tower 32m in height from the base mound consists manmade fill 14 m thickness. was found as a simple shallow direct foundation. This is just like 10 story RC building standing upon thick sand without such deep piling. At present, structure based sandy shall lo...

Many regulatory frameworks for sediment quality assessment include consideration of contaminant bioavailability. However, the "snap-shots" of metal bioavailability provided by analyses of porewaters or acid-volatile sulfide-simultaneously extractable metal (AVS-SEM) relationships do not always contribute sufficient information. The use of inappropriate or inadequate information for assessing me...