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An internet-based
electronic publication of Hazlett-Kincaid. Copyright © 2000.
Hazlett-Kincaid, Inc. All rights reserved.
Volume 1, Number 5 (September 2000)
Expert 3-D Modeling
Acid-Mine Drainage: A
Hydraulic Solution
Contact Us:
ph: 717.859.1413
FAX: 801.912.4751
toll-free: 888.525.1515
Hazlett-Kincaid, Inc.
204 South 7th St.
Akron, PA 17501
Comments or Questions?
e-mail:
Tim Hazlett, Ph.D.
Todd Kincaid, Ph.D. |
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Hazlett-Kincaid
chosen by STV, Inc.
to provide expert 3-D geologic, parameter, and groundwater
flow/construction impact modeling for massive public works
project in NY City.....(see following story)
 Hazlett-Kincaid Provides Expert 3-D Modeling
Image Courtesy MTA/LIRR
 e are proud
to announce our recent selection by STV,
Inc. as the sole-source providers of specialized geological modeling
services for part of one of the largest public works project in New York City
history. STV,
Inc. for the project is a joint-venture partner with Parsons
Brinckerhoff Quade & Douglas responsible for tunnel engineering
consulting.
The Metropolitan Transit Authority (MTA) and the Long Island
Rail Road (LIRR) have begun a
ten-year, $6 billion-dollar effort to connect the LIRR to New York's
Grand Central Terminal. The connection begins near Amtrak's Sunnyside Yard, in Long Island
City, where tunneling and cut-and-cover excavations will join LIRR
lines to the existing 63rd Street Tunnel (see map).
Through the
development and application of sophisticated 3D geologic and parameter
models, Hazlett-Kincaid
will be working with STV to
optimize characterization and excavation strategies and minimize
environmental costs. Groundwater flow and subsurface-construction
environmental impact models will also be developed in order to quantify
the impacts of the tunneling and cut-and-cover operations on existing
and future subsurface conditions.
You can read extensively about the overall project by clicking here!
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 Acid Mine-Drainage:
A Hydraulic Solution
Estimates are that the acid mine-drainage (AMD) problem
in the United States will costs tens of billions of dollars to clean up.
It is also estimated that the State of Pennsylvania has inherited at
least 1/3 of the nation's total problem. Federal and state officials
have said that they are actively seeking new and innovative approaches
to dealing with this issue. Attempts to control the
AMD problem have mostly drawn on data collection efforts, the design and
implementation of engineered treatment systems, and massive earthwork
projects. However, to date, quantifying the overall effectiveness of any
of these activities or assembling previously collected data into a
comprehensive understanding of the problem has proven difficult. Hazlett-Kincaid,
working with NIER, has developed a new
approach to the AMD problem. Our approach will combine over 150 years of
mining data (from the OSM in
Wilkes-Barre) with the results of contemporary field studies to
produce a 3D geospatial decision-support tool. The decision-support tool
will aide workers in optimizing future data acquisition and
remediation/mitigation strategies by visually illustrating complex 3D
geologic and parameter relationships. The rigorous quantitative portion
of the decision-support system will use sophisticated finite element
groundwater flow modeling to help answer questions such as:
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under what subsurface conditions may mine-related
subsidence occur and what is the risk of mine collapse over a given
area; and
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is AMD production hydraulically controlled and can
we propose hydraulic measures to mitigate it?
The decision-support system will have many other
applications and we hope to make it the focal point for all future
geologic investigations in the anthracite region of PA. Read more about acid
mine-drainage in PA here.
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