Author: George Frank HamlinPublisher:
ISBN:
Category : Soil physics
Languages : en
Pages : 136
Book Description
Comparison of Selected Methods of Measuring Hydraulic Conductivity and Diffusivity of Soil with Varied Clay Content
Author: George Frank HamlinPublisher:
ISBN:
Category : Soil physics
Languages : en
Pages : 136
Book Description
Comparison of Different Methods of Measuring Soil Hydraulic Conductivity
Author: Luciano Behnke DuhartPublisher:
ISBN:
Category : Soil moisture
Languages : en
Pages : 176
Book Description
Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States
Author: Selected Water Resources Abstracts
Author: Master's Theses and Doctoral Dissertations in the Pure and Applied Sciences
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 164
Book Description
Comparison Between Various Field and Laboratory Measurements of the Hydraulic Conductivity of Three Clay Liners
Author: G. DidierPublisher:
ISBN:
Category : Borehole
Languages : en
Pages : 22
Book Description
For waste facilities, field assessment of the hydraulic conductivity of fine- grained soils has been a real challenge for the past decades that has led to several types of test methods. Although standards (ASTM, NF, etc.) have been adopted in many countries, any test method needs careful application for constructing quality-control programs. The type of apparatus, its geometry, and even specimen preparation may be major sources of discrepancy. We compared hydraulic-conductivity values obtained from various field-testing methods (open, sealed, single and double infiltrometers, and borehole methods), and laboratory-testing methods such as oedometer cells or rigid and flexible-wall permeameters. Three materials were tested in this study: a compacted sandbentonite mixture, compacted clayey silt, and natural sandy clay. The field tests were run on soil-test pads whose characteristics were defined beforehand in the laboratory and the field. Comparison of the results shows a large range of hydraulic-conductivity values for a single soil sample. Such variability can commonly be explained by a scale effect, as demonstrated by the use of various types of diameter or geometry for the field or laboratory tests. Soil behavior (swelling or shrinkage) and test-analysis methods (saturated or unsaturated-flow analysis) are other important parameters. In conclusion, we identified the main problems affecting tests with infiltrometers and permeameters, and how they can be reduced or avoided by the improvement of current techniques.
Agricultural Engineers Yearbook
Author: Publisher:
ISBN:
Category : Agricultural engineering
Languages : en
Pages : 1490
Book Description
A Pressure Sewer System Demonstration
Author: Italo G. CarcichPublisher:
ISBN:
Category : Sewerage
Languages : en
Pages : 472
Book Description
Author: Patricia A. Brandt
Author: