Measurement of Hydraulic Conductivity Variation
For a confined, sandy aquifer, the dependence of the horizontal hydraulic conductivity on the vertical coordinate has been measured using single-well tracer injection/recovery experiments....
Recent Developments in Hydrologic Instrumentation
The availability of space-age materials and implementation of state-of-the-art electronics is making possible the recent developments of hydrologic instrumentation. Material developments...
Littoral Environment Observation Program
This paper presents a method for determining the longitudinal, transverse, and vertical dispersivities of a thick aquifer for a free convection tracer test using only measurements from...
Encouraging and Controlling Use of Automation
Judicious use of automation can greatly enhance the productivity of an engineering staff. Integration of multiple computing processes with technology such as plotting, digitizing, total...
Limits on Dynamic Measurements and Instrumentation
The implementation of the FFT (Fast Fourier Transform) into portable instrumentation has contributed to advances not only in signal analysis but also to new and improved transducers for...
Rating Pavements by Computer
Pavement rating is a necessary and labor-intensive job and one with a high turnover rate of personnel. Also, rating scores are often inconsistent from day to day, or between different...
CSMIP Strong-Motion Instrumentation and Records from Transportation Structures?Bridges
Seven transportation structures have been instrumented by the California Strong Motion Instrumentation Program (CSMIP), including four bridges. Records (in excess of 0. 25 g maximum acceleration)...
Security of Unattended Pipeline Stations
The ultimate purpose of a security system is to maintain equipment and service in a normal operating condition or to restore the equipment and service to normal operating condition as...
Evaluating Data Collectors as a Surveying Tool
Data collectors play an increasingly important role in surveying. The data collector serves as an interface between the total station and the computer and as an electronic assistant to...
A Flat-Dilatometer Study of Lateral Soil Response
The effect of flat dilatometer penetration on the lateral stress conditions in soil around the dilatometer blade and the soil response against dilatometer diaphragm deflection were investigated...
The Campus Computer
The new Computer Aided Engineering Laboratory (CAE) at Lehigh University, Bethlehem, Pa., was established as an adjunct�a supplement�to the faculty and is dedicated to teaching civil engineering,...
Market Research and the Engineering Firm
In an age of volatile market changes and stiff competition, engineering firms need continuous market research, the author writes, leading to development of an effective marketing plan....
Recent Development in Geotechnical Engineering for Hydro Projects
Eleven of the papers presented at three sessions of the ASCE Geotechnical Engineering Division at the 1981 International Convention are included. The papers are divided into two subjects:...
From Field to Map�Untouched by Human Hands
After a few years of experience with computerized surveying systems, surveyors are finding that increased efficiency and accuracy are justifying capital expenditures. Several users of...
Now Underway: In-depth Probe of Key Factors Construction Productivity
A New York based industry group is now in the process of doing an in-depth study of key problems facing the American construction industry�and what can be done to alleviate these problems....
Cone Penetration Testing and Experience
Experiences and advances in cone penetration testing are reviewed in these papers presented in a technical session at the National Convention of the American Society of Civil Engineers....
What Has the U.S. Gotten Out of the Space Program�
Since the time of its creation in 1958, the National Aeronautics and Space Administration has spent billions of dollars on space activities. What has the U.S. gotten out of these tremendous...
Evaluation and Prediction of Subsidence
Proceedings of the International Conference on Evaluation and Prediction of Subsidence held at Casino Hotel, Pensacola Beach, Florida, January 1978. Sponsored by the American Society of...
What's New in Roofing�
For 75 years the waterproof membranes in roofs were made the same way�layers of bitumen alternating with layers of felt. Now for the first time prefabricated membranes of synthetics are...
Frost Heaves�� A Major Dilemma for Ice Arenas
The ice sheets of three arenas in Minneapolis-St. Paul have had frost heaves ranging from seven to eleven inches (0.2 to 0.3 m). Proper design should prevent frost from penetrating the...
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