Leakage of clogged channels that partially penetrate surficial aquifers

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

A theoretical formulation describing leakage from clogged channels that partially penetrate surficial aquifiers is reported in this paper. Leakage characteristics are parameterized by a reach transmissivity, which is defined as the volume flow rate out of the channel per unit length of the channel per unit draw-down. An expression is developed to relate the reach transmissivity to the transmissivity of the formation, mean channel width, distance of drawdown measurement from the channel centerline, ratio of drawdowns on both sides of the channel, and local reach transmissivity associated with clogging. The theoretical expressions, and associated limitations are verified using a fine-scale numerical model. The proposed formulation was field tested at two channels. The measurements of reach transmissivity were found to vary linearly with the drawdown ratio, as predicted by the theory. Furthermore, the acquifer transmissivity obtained by fitting the theoretical formulation to the measurements is in close agreeement with independently estimated values.

Original languageEnglish (US)
Pages (from-to)467-488
Number of pages22
JournalJournal of Hydraulic Engineering
Volume117
Issue number4
DOIs
StatePublished - Apr 1991

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Leakage of clogged channels that partially penetrate surficial aquifers'. Together they form a unique fingerprint.

Cite this