Unconfined Aquifer
Approximate analysis of three dimensional groundwater flow toward a radial collector well in a finite extent unconfined aquifer
... Abstract. This study develops a three-dimensional (3-D) mathematical model for describing transient hydraulic head distributions due to pumping at a radial collector well (RCW) in a rectangular confined or ...
17
An Assessment of Factors Affecting Reactive Transport of Biodegradable BTEX in an Unconfined Aquifer System, Tehran Oil Refinery, Iran
... This paper considers the sensitivity of the model to changes in the dispersivity, distribution coefficient, parameters of Monod, Michaelis-Menten, first- and zero- order kinetics models on the contaminant plume. Several ...
16
A confined–unconfined aquifer model for subglacial hydrology and its application to the Northeast Greenland Ice Stream
... Abstract. Subglacial hydrology plays an important role in ice sheet dynamics as it determines the sliding velocity. It also drives freshwater into the ocean, leading to undercut- ting of calving fronts by plumes. ...
17
Potential climate change impacts on the water balance of regional unconfined aquifer systems in south western Australia
... regional unconfined aquifer systems in south-western Australia, an area that has experi- enced a marked decline in rainfall since the mid 1970s and is expected to experience further decline due to global ...
21
Evaluating freshwater lens morphology affected by seawater intrusion using chemistry resistivity integrated technique: a case study of two different land covers in Carey Island, Malaysia
... The Island located in the Langat Basin (Fig. 1) either got separated from the mainland by the pirates’ activities in the nineteenth century or by the Chinese traders who broke the strip of land separating the Langat ...
19
A Heuristic Approach to Estimating Spatial Variability of Vertical Leakage in the Recharge Zone of the Gambier Basin Tertiary Confined Sand Aquifer, South Australia
... confined aquifer, and storage in the aquitard layer are negligible ...confined aquifer pressure levels for the mechanical loading and unloading effect of the watertable levels in overlying un- confined ...
18
Estimating the Saturated Hydraulic Conductivity of Granular Material, Using Artificial Neural Network, Based on Grain Size Distribution Curve
... an unconfined Aquifer in Zahedan (City of Zahedan in Iran) has been investigated by their grain size distribution curve obtained in the laboratory using the artificial neural network ...an unconfined ...
8
An iterative series solution approach for solving the free-boundary condition in groundwater flow systems
... Summary. In this paper, a two-dimensional analytic series solution for groundwater flow with a free water table condition is derived and demonstrated on a two-layer unconfined aquifer with complex (i.e., ...
8
Technical Note: Three dimensional transient groundwater flow due to localized recharge with an arbitrary transient rate in unconfined aquifers
... either aquifer incom- pressibility or two-dimensional flow in the absence of the vertical ...rectangular unconfined aquifer with four boundaries under the Robin ...the aquifer thickness. The ...
15
Review of Some Methods of Determining in-Situ Saturated Hydraulic Conductivity of Soil
... The auger-hole method consists of preparing a cavity in the ground partially penetrating an aquifer with minimal disturbance of the soil. In the cavity, the water level in the hole is allowed to coincide with that ...
12
Groundwater age and hydrothermalism of confined aquifers in the Argentine Pampean plain
... The unconfined aquifer, whose thickness is 75–100 m, is formed by fine aeolian Quater- nary sediments characterized by a hydraulic conductivity (K) in the order of 1–5 ...This aquifer, with ...
19
Stabilization of Lithomargic Soil Using Cement and Randomly Distributed Waste Shredded Rubber Tyre Chips
... in Unconfined Compressive Strength (UCS value) and California Bearing Ratio (CBR value) of the soil with the increase in cement content at an optimum fiber content of 5% of dry ...
5
Effect Of Bioenzyme And Geotextile On Strength Characteristics Of Subgrade Soil
... effectiveness of Terrazyme on lateritic soil and clayey soil. An increase in the California Bearing Ratio (CBR) was observed by the addition of Terrazyme. He stated that Terrazyme is suitable for clayey soil and sand but ...
7
Effect of Lime on Engineering Properties of Expansive Soil
... Gravity, Moisture content test and Sieve analysis and California bearing ratio test. From results we came to know that the liquid limit, plastic limit and specific gravity of lime are decreases. In the addition of lime, ...
6
Effectiveness of Sugarcane Bagasse Ash (SCBA) as partial cement replacement in peat stabilization
... Cement (OPC) and silica sand (K7) were used as additives to stabilize the peat that sampled from Hokkaido, Japan. To develop the optimal mix design, specimens of stabilized peat were tested in unconfined ...
10
Aquifer Vulnerability Assessment Methods: The Non Independence of Parameters Problem
... has been assessed elsewhere using the SINTACS method [8-10]. The SINTACS method [4,5], which originally derived from DRASTIC [3], retains only the structure of the DRASTIC method in its latest release 5. It evaluates the ...
11
The Unconfined Power of European Union Law
... is unconfined because neither the EU nor domestic judiciaries have addressed these qualities of EU ...equally unconfined domestic responses where the idea of Europe is now strongly associated with an ...
34
The Advantages of Using a Computer Based Integrated Assessment to Promote Cooperative Behavior in Groundwater Management
... the aquifer, meanwhile the second and third seek to lower aquifer impacts and possible subsidence ...the aquifer con- servation and the two others offer an intermediate solution where extraction and ...
6
Experimental Study on Variation of Unconfined Compressive Strength of a Lime Stabilized Solina, Soil Srinagar J&K
... In this paper, high quality samples were tested in their undisturbed and reconstituted states to study the properties of soil samples procured from construction site. Laboratory tests involved determination of physical ...
6
HYDROGEOLOGICAL EVALUATION OF GROUNDWATER AROUND BAUCHI AREA, NE NIGERIA.
... main aquifer units, which were identified, based on analysis of borehole logs and geologic ...weathered aquifer and the fractured basement aquifer ...weathered aquifer unit is derived from the ...
10