Lancelot-an in situ piezometer for soft marine sediments

  • Christian H
  • Heffler D
  • Davis E
  • 5

    Readers

    Mendeley users who have this article in their library.
  • 6

    Citations

    Citations of this article.

Abstract

Lancelot is a tethered marine piezometric probe designed to penetrate the seabed at full-ocean water depth to obtain consolidation and permeability data as well as to constrain the effective stress state through the measurement of equilibrium pore water pressure. Probe design is reviewed, highlighting its rapid deployment and recovery capabilities. Example data are shown from recent deployments on the St. Pierre Slope, southwestern Grand Banks of Newfoundland, including one within a debris flow. Sites were investigated that were thought to possess excess pore water pressures, based on previous mapping of seabed pockmarks and gas-related features. Lancelot measurements confirmed this at the debris flow site, where conditions were essentially still liquefied. © 1993.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • H. A. Christian

  • D. E. Heffler

  • E. E. Davis

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free