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Automated Measurement of Soil/Water Properties

by Joseph D. Ritchey, Illinois State Water Survey, Ground, Water Section, Champaign, IL, USA,
Mary H. Le Faivre, Illinois State Water Survey, Ground, Water Section, Champaign, IL, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

An automated data-acquisition system was constructed to permit continuous operation of laboratory equipment. The apparatus was used to monitor flow through fine-grained, 'undisturbed' soil samples and was designed to measure the effective porosity and hydraulic conductivity of saturated soils. Soils examined were typical of those used as landfill liner materials. The system monitored the flow of water through four soil columns simultaneously. Four values were determined for each column: flow rates into and out of the column, and hydraulic head before entering and after exiting the column. The data-acquisition system consisted of an IBM-PC compatible microcomputer and a Tecmar PC-Mate Lab Master data-acquisition circuit board.

Subject Headings: Saturated soils | Soil properties | Flow measurement | Data collection | Soil water | Fine-grained soils | Hydrologic data

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