Method and apparatus for determining the hydraulic conductivity of earthen material
Abstract
An earthen material hydraulic conductivity determining apparatus includes: (a) a semipermeable membrane having a fore earthen material bearing surface and an opposing rear liquid receiving surface; (b) a pump in fluid communication with the semipermeable membrane rear surface, the pump being capable of delivering liquid to the membrane rear surface at a plurality of selected variable flow rates or at a plurality of selected variable pressures; (c) a liquid reservoir in fluid communication with the pump, the liquid reservoir retaining a liquid for pumping to the membrane rear surface; and (d) a pressure sensor in fluid communication with the membrane rear surface to measure pressure of liquid delivered to the membrane by the pump. Preferably, the pump comprises a pair of longitudinally opposed and aligned syringes which are operable to simultaneously fill one syringe while emptying the other. Methods of determining the hydraulic conductivity of earthen material are also disclosed. 15 figs.
- Inventors:
- Issue Date:
- Research Org.:
- EG & G Idaho Inc; Lockheed Martin Idaho Technology Co
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 238059
- Patent Number(s):
- 5520248
- Application Number:
- PAN: 8-368,180
- Assignee:
- Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
- DOE Contract Number:
- AC07-94ID13223; AC07-76ID01570
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 28 May 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 54 ENVIRONMENTAL SCIENCES; SOILS; HYDRAULIC CONDUCTIVITY; MEASURING INSTRUMENTS; DESIGN; OPERATION; MEMBRANES; PUMPS; WORKING FLUIDS; PRESSURE GAGES
Citation Formats
Sisson, J B, Honeycutt, T K, and Hubbell, J M. Method and apparatus for determining the hydraulic conductivity of earthen material. United States: N. p., 1996.
Web.
Sisson, J B, Honeycutt, T K, & Hubbell, J M. Method and apparatus for determining the hydraulic conductivity of earthen material. United States.
Sisson, J B, Honeycutt, T K, and Hubbell, J M. Tue .
"Method and apparatus for determining the hydraulic conductivity of earthen material". United States.
@article{osti_238059,
title = {Method and apparatus for determining the hydraulic conductivity of earthen material},
author = {Sisson, J B and Honeycutt, T K and Hubbell, J M},
abstractNote = {An earthen material hydraulic conductivity determining apparatus includes: (a) a semipermeable membrane having a fore earthen material bearing surface and an opposing rear liquid receiving surface; (b) a pump in fluid communication with the semipermeable membrane rear surface, the pump being capable of delivering liquid to the membrane rear surface at a plurality of selected variable flow rates or at a plurality of selected variable pressures; (c) a liquid reservoir in fluid communication with the pump, the liquid reservoir retaining a liquid for pumping to the membrane rear surface; and (d) a pressure sensor in fluid communication with the membrane rear surface to measure pressure of liquid delivered to the membrane by the pump. Preferably, the pump comprises a pair of longitudinally opposed and aligned syringes which are operable to simultaneously fill one syringe while emptying the other. Methods of determining the hydraulic conductivity of earthen material are also disclosed. 15 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 28 00:00:00 EDT 1996},
month = {Tue May 28 00:00:00 EDT 1996}
}