What Filter Design Is Available for Tailing Materials or Problematic Soils?
Internal stability of problematic (noncohesive and well graded) soils need be evaluated by its accurate soil classification, gradation curve, fine content, relative density and plasticity index for engineering purpose.
First thing in field investigation for embankment or tailing dam construction is classifying the foundation strata soil types accurately and consistently. Many people even including civil engineer still have difficulty to righteously classify the soil type encountered during the subsurface investigation.
USCS (unified soil classification system) is best way to classify the soil type accurately and precisely while NRCS classification is popularly used for its approximate hydraulic conductivity estimates. I recommend using the USCS criteria in classifying the soil type, especially to evaluate the granular or geotextile filter performance.
In my future filter class, I will teach basic rules of USCS soil classification to accurately discern clay, silt and sand types during your field logs at the site investigation.
I will also share a Excel sheet to help you classify the soil type for engineering purpose once you have all laboratory test results.?https://lnkd.in/ddGQ2Eb
In case your underdrain system uses GT filter socks which can be replaceable during service period, I can provide laboratory-proven
GT filter design for the problematic soil or tailing material.
Assistant Project Manager at Masteron Sdn Bhd
3 年The need to understand the foundation before we propose any structure to avoid any future failure mechanisms.