scholarly journals The solution of unconfined water seepage problem in saturated-unsaturated soil using Bathe algorithm and Signorini condition

2017 ◽  
Vol 69 ◽  
pp. 012170
Author(s):  
Zhongsi Dou ◽  
Jiwen Wu ◽  
Hongmei Zhang ◽  
Kai Huang
Keyword(s):  
Unsaturated Soil ◽  
Water Seepage ◽  
Seepage Problem ◽  
Signorini Condition

scholarly journals Simulation of Sub-Drains Performance Using Visual MODFLOW for Slope Water Seepage Problem

2016 ◽  
Vol 136 ◽  
pp. 012014 ◽  
Author(s):  
M F T Baharuddin ◽  
S A A Tajudin ◽  
M H Z Abidin ◽  
N A Yusoff
Keyword(s):  
Visual Modflow ◽  
Water Seepage ◽  
Seepage Problem

scholarly journals Groundwater Seepage Mapping Using Electrical Resistivity Imaging

2015 ◽  
Vol 773-774 ◽  
pp. 1524-1534 ◽  
Author(s):  
Mohd Hazreek Zainal Abidin ◽  
Mohamad Faizal Tajul Baharuddin ◽  
Mohd Hafiz Zawawi ◽  
Nor’aishah Md Ali ◽  
Aziman Madun ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Image Interpretation ◽  
Ground Surface ◽  
Electrical Resistivity Imaging ◽  
Fresh Groundwater ◽  
Groundwater Seepage ◽  
Water Seepage ◽  
Resistivity Imaging ◽  
Electrical Resistivity Survey ◽  
Seepage Problem

In recent years, electrical resistivity method (ERM) has widely being applied as an alternative tool in engineering, environmental and archeological studies. A global image of groundwater seepage problem was difficult to obtained using conventional geotechnical method due to the efficiency of cost, time and result coverage. This study was conducted using electrical resistivity survey in order to investigate the potential of the problematic zone due to the groundwater seepage problem. ABEM SAS 4000 equipment set was used in during the resistivity data acquisition stage. Six (6) resistivity spread lines (SP) were performed across the slopes area using 2-D electrical resistivity imaging. The raw data was processed using RES2DINV and SURFER software for 2-D and 3-D subsurface image. Interpretation of electrical resistivity results was verified using the existing borehole and geochemistry results. Geochemistry results analyses were used Atomic Absorption Spectrometer (AAS) for determining cation and Ion Chromatography (IC) is for anions. Anion elements were studied consists of chloride, bicarbonate, nitrate and sulfate while cation elements consists of sodium, potassium, calcium and magnesium. All the elements were analyzed by using Piper Diagram to determine geochemistry facies in the groundwater. It was found that low resistivity value (ERV) which associated to groundwater (10 ~ 100 Ωm) can be found starts from the ground surface (0 m) to a greater (> 10 m) depth of the subsurface profile. The finding of the study water seepage can be categorized as Ca-HCO that indicator a typical of shallow fresh groundwater. The finding of the study is important to determine source process of water seepage on that area. This study has successfully demonstrates that the application of ERM with supporting borehole and geochemistry data was able to provide a comprehensive results due to the groundwater leakage detection.

Vapor Transport in Unsaturated Soil.

1997 ◽  
Author(s):  
Leonard W. Lion ◽  
Brent Alspach ◽  
Jason Gilbert ◽  
Sean Lorden
Keyword(s):  
Unsaturated Soil ◽  
Vapor Transport

Soil Strength Reduction Method Induced by Variation of Water Content

2012 ◽  
Vol 170-173 ◽  
pp. 847-852
Author(s):  
Peng Ming Jiang ◽  
Zhong Lei Yan ◽  
Peng Li
Keyword(s):  
Slope Stability ◽  
Unsaturated Soil ◽  
Unsaturated Soils ◽  
Characteristic Curve ◽  
Strength Reduction ◽  
Actual State ◽  
Soil Slope ◽  
Simple Method ◽  
The Common ◽  
The Stability

As the complexity of unsaturated soil theory, and it must have a long test period when we study the unsaturated soils, so the conventional design analysis software does not provide such analysis, so we can imagine that such a slope stability analysis does not accurately reflect the actual state of the slope. Based on the known soil moisture content，this paper use the soil water characteristic curve and strength theory of unsaturated soil to calculate the strength reduction parameters of soil which can calculate the stability of the soil slope when using the common calculation method. It is noticeable that this method can be extended and applied if we establish regional databases for this simple method, and these databases can improve the accuracy of the calculation of slope stability.

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