Constant Head Permeability Test | Procedure and Data Analysis

[@MOHAMEDMAMOUN-l9u]

thank you sir

[@678JuliaC]

Thank you! Excellent video

[@indrajitsingh4196]

Sir great explanation

[@bananaenjoyer123]

thanks ! very helpful

[@omedmuhammad2674]

Great video

[@AB-hm3vb]

could you please explain step by step how to prepare sample, de-air system, etc.? what should be done before first measurement? thank you

[@GeoEngineeringandScience]

That's a long (time-consuming) process to prepare the specimen, and it actually takes much longer than the test itself. We follow the standard procedure that describes how it should be done. Here are the references: Australian Standard AS 1289 6.7.1-2001. Method of testing soils for engineering purposes: Method 6.7.1 Soil strength and consolidation tests - Determination of permeability of a soil - Constant head method for remoulded specimen. (2) Australian Standard AS 1289 6.7.2-2001. Method of testing soils for engineering purposes: Method 6.7.2 Soil strength and consolidation tests - Determination of permeability of a soil - Falling head method for remoulded specimen.

[@Tellie-iu4uv]

I just wanted to ask. When you say, "When we change the water flow, we also change the level in manometers," how do I do this? How do I change the level of the manometers? Thank you!

[@daridranarayan]

How to calculate C1(10`3) value for formula K= C1 X (Q/H) , such as for NX casing C1 is 7.95 where dia of hole 7.62cm. How to evaluate C1 value 7.95

[@joyt1825]

hello! i would like to find out the water level if a standpipe is inserted such that the intake point is 50 mm above the bottom of the sample. what does it mean?

[@neophatsoane6807]

how did you get the volume of flow?

[@geoninja3094]

what about open end test permeability data

[@GeoEngineeringandScience]

not part of this video