نتایج جستجو برای: composite soil

تعداد نتایج: 301236  

2006
S. K. Mahapatra D. Martin R. D. Sharma S. P. Singh J. P. Sharma

The IRS-1D LISS III false colour composite (FCC) decoded imagery belonging to Kosi river watershed of Almora district of Uttaranchal under warm humid Lesser Himalayan agro-ecological region was interpreted and surveyed for soil resource mapping. On the basis of image interpretation and ground truth study ten physiographic units were identified. Soil physiography relationship was established on ...

Journal: :محیط شناسی 0
شهناز محمودی دانشگاه شهرکرد ،دانشجوی کارشناسی ارشد خاک شناسی مهدی نادری خوراسگانی دانشگاه شهرکرد ، استادیار گروه خاک شناسی جهانگرد محمدی دانشگاه شهرکرد،گروه خاک شناسی

areas surrounding mines are severely vulnerable to pollution due to mine explorations, excavations and transportations. nowadays spectrophotometers and spectral reflectance are applied for estimating the concentration of pollutants due to high costs of sampling and laboratory measurements. this research was carried out to determine spatial distribution of lead concentration in soil particle siz...

2008
TUCKER LEE D. MILLER

The soil or background spectra contribution to grass canopy spectral reflectance for the 0.35 to 0.80 fJ-m region was investigated using in situ collected spectral reflectance data. Regression analysis was used to estimate accurately the unexposed soil spectral reflectance and to quantify maxima and minima for soil-green vegetation reflection contrasts. generally be impractical to take detailed...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
A Dunphy S Beecham S Vigneswaran H H Ngo R McLaughlan A Collins

Innovative Water Sensitive Urban Design (WSUD) systems are being investigated at three locations to the north and south of Sydney, Australia. These systems contain porous concrete pipes that are designed so that stormwater exfiltrates through the permeable walls of the pipes into the surrounding substrate media material. The porous pipes and media material treat the passing stormwater. The prim...

Journal: :computational methods in civil engineering 2012
v.j. sharma s.a. vasanvala c.h. solanki

in order to mobilize shallow soil to participate in the interaction of piled raft foundation sufficiently, the concept of piled raft has been modified to new type of foundation named composite piled raft. in the system of composite piled raft, the short piles made of flexible materials is used to strengthen the shallow soft soil, while the long piles made of relatively rigid materials is used t...

The carbon sequestaration by plants and soil is one of the easiest and the most econimical ways to reduce atmosphere carbon. This study was conducted on the planted land use of Fraxinus rotundifolia, Cupressus arizonica, obinia pseudoacacia L., Elaeagnus angustifolia, Cedrus libani, and Quercus brantii (persica) in the Arjan plain of Fars province. For each plantation land use, there were three...

1999
Howard Cannon Sanjiv Singh

We present a composite forward model of the mechanics of an excavator backhoe digging in soil. This model is used to predict the trajectories developed by a closed-loop force based control scheme given initial conditions, some of which can be controlled (excavator control parameters), some directly measured (shape of the terrain), and some estimated (soil properties). Since soil conditions can ...

C.H. Solanki S.A. Vasanvala V.J. Sharma,

In order to mobilize shallow soil to participate in the interaction of piled raft foundation sufficiently, the concept of piled raft has been modified to new type of foundation named composite piled raft. In the system of composite piled raft, the short piles made of flexible materials is used to strengthen the shallow soft soil, while the long piles made of relatively rigid materials is used t...

Journal: :international journal of civil engineering 0
j. jalili international institute of earthquake engineering and seismology, geotechnical research center, room 304, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran m. k. jafari international institute of earthquake engineering and seismology, geotechnical research center, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran a. shafiee international institute of earthquake engineering and seismology, geotechnical research center, no. 21, arghavan st., north dibaji, farmanieh, tehran 19395/3913, iran j. koseki geotechnical engineering laboratory, institute of industrial science, the university of tokyo, room ce-201, komaba 4-6-1, meguro-ku, tokyo, 153-8505, japan t. sato geotechnical engineering laboratory, institute of industrial science, the university of tokyo, room ce-201, komaba 4-6-1, meguro-ku, tokyo, 153-8505, japan

a series of tests and also numerical analyses were conducted to explore the mechanical behavior of a mixture of coarse gravelsize particles floating in a matrix of silt, sand or clay. the research is a step forward in an ongoing investigation on behavior of composite clay, which is used as the core material of some large embankment dams all over the world. after providing the reader with an ove...

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