نتایج جستجو برای: piezometers

تعداد نتایج: 182  

Journal: :E3S web of conferences 2021

The article describes the definition of filtration flow gradients in dam's body on example Kattakurgan reservoir, analysis reasons for their change cross-section. Evaluation aggressiveness plays an important role ensuring stability reservoir dam and its parts. To assess body, it is necessary to know action pattern water effect elements dam. In addition, chemical composition piezometers was anal...

2009
H. X. Lan C. D. Martin C. R. Froese T. H. Kim A. J. Morgan D. Chao

Assessment of geological hazards in urban areas must integrate geospatial and temporal data, such as complex geology, highly irregular ground surface, fluctuations in pore-water pressure, surface displacements and environmental factors. Site investigation for geological hazard studies frequently produces surface maps, geological information from borehole data, laboratory test results and monito...

2013
Ascanio Rosi Pietro Vannocci Veronica Tofani Giovanni Gigli Nicola Casagli

Ricasoli is a village located in a morphological high in the Upper Arno river Valley (Tuscany), an area historically subject to widespread slope instability phenomena. This morphological high and the surrounding slopes result to be affected by numerous landslides, which cause the retreat of the escarpments surrounding the village, involving infrastructures and buildings. To better understand th...

1999
MIRKHALEGH Z. AHMADI Mirkhalegh Z. Ahmadi

A piezometric head method is proposed to estimate the impermeable layer depth used in drain spacing formulae. The method was tested and compared with soil texture changes and the US Bureau of Reclamation (USBR, 1978) criterion of impermeable layer being one with hydraulic conductivity one tenth to one fifth that of the weighted hydraulic conductivity of the upper layers. The proposed method, wh...

Journal: :Data series 2021

First posted June 23, 2021 For additional information, contact: Director, New Mexico Water Science CenterU.S. Geological Survey6700 Edith Blvd. NEAlbuquerque, NM 87113 The Albuquerque Basin, located in central Mexico, is about 100 miles long and 25–40 wide. basin hydrologically defined as the extent of consolidated unconsolidated deposits Tertiary Quaternary age that encompasses structural Rio ...

Journal: :Nucleation and Atmospheric Aerosols 2023

Field studies were carried out on the earthen dam of channel reservoir Tuyamuyun hydrosystem Amudarya River (Uzbekistan), which was put into operation in 1984 according to traditional method using control and measuring equipment embedded body dam. The water levels upper lower reaches, piezometers, drainage discharge measured. Maximal 130.00 head race observed middle October minimal 117.00 March...

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In this study is predicted the groundwater level of Sharif Abad catchment using some artificial intelligence models. For this purpose used of monthly groundwater levels for modeling in the three observed wells located in the Sharif Abad watershed of Qom. To compare the results of the hybrid model of wavelet analysis-neural network (WNN), genetic programming (GP) multiple linear regression (MLR)...

اسدی, اسماعیل, جعفرزاده, جعفر, رستم زاده, هاشم,

Groundwater resources are important sources for the supply of water in agriculture, industry and drinking in Ardabil plain, therefore underground water resources planning and sustainable management of these resources are important. The purpose of this study is grading the villages in the plain of Ardabil in underground water crisis and changes during the years 1360-1391. The information obtaine...

Journal: :Journal of environmental management 2009
O Fenton K G Richards L Kirwan M I Khalil M G Healy

Groundwater contamination was characterised using a methodology which combines shallow groundwater geochemistry data from 17 piezometers over a 2 yr period in a statistical framework and hydrogeological techniques. Nitrate-N (NO3-N) contaminant mass flux was calculated across three control planes (rows of piezometers) in six isolated plots. Results showed natural attenuation occurs on site alth...

Journal: :Water Science & Technology: Water Supply 2023

Abstract The present study uses a wavelet-based clustering technique to identify spatially homogeneous clusters of groundwater quantity and quality data select the most effective input for feed-forward neural network (FFNN) model predict level (GL), pH HCO3? in groundwater. In second stage this methodology, first, GL, time series different piezometers were de-noised using threshold-based wavele...

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