A Field Study of Wind-Induced Conductor Loads
A 161 kV steel pole line in Omaha, Nebraska, is instrumented to provide conductor load field data due to climatic events. Various transducers and monitoring equipment used for data acquisition...

Soil Strength Recovery Using a Clegg Impact Device
The research described in this paper uses the Clegg Impact Device to determine the relative strength of a soil, and describes how this information can be used to develop the strength recovery...

Reinforced Roads Bridging Voids
A mathematical model was developed to design a pavement section reinforced with a geotextile or related product to span a void. A full scale field test was conducted to verify the model....

Performance of Highway Traffic Barriers
This paper describes an investigation of traffic barrier performance in New York State. A one-year sample of all traffic-barrier accidents in the state was obtained from Department of...

What to Do When a Failure Occurs
When a major building problem involving structural failure occurs, action should begin immediately to determine the damage or failure and detect the underlying problem. This paper will...

Field Tests of Wind-Structure Interaction
The present study was initiated to investigate the possible causes for excessive lamp failure rates on High Mast illumination towers in the State of Minnesota. The study consisted of two...

Siltation of the Port of Astoria
Sedimentation rates suddenly increased in the Port of Astoria, Oregon, immediately following the May 18, 1980 ash eruption of Mt. St. Helens. This ash was transported down the Columbia...

Effects of Deterioration on Safety and Reliability of Structures
Deterioration of structural and non-structural elements in commercial, industrial and residential constructions is of general concern to investors, design engineers, architects, contractors...

Geotechnical Aspects of Stiff and Hard Clays
This publication contains articles that deal with field and laboratory measurements of engineering properties of stiff (overconsolidated) clays, and comparisons of predicted and measured...

Use of In Situ Tests for Foundation Design on Clay
Years of evaluated experience with the field vane test in soft clays have resulted in empirical correction factors well suited for design practice. An extension of L. Bjerrum's...

Deformation Characteristics of Cohesionless Soils from In Situ Tests
This paper is a summary of seven years experience gained by the National Electricity Board of Italy (ENEL), ISMES and Technological University of Turin in assessing these parameters using...

Seismic Cone Penetration Test
A new test, called the seismic cone penetration test (SCPT) is described. A small rugged velocity seismometer has been incorporated into an electronic cone penetrometer. The combination...

In Situ Testing for Lock and Dam 26 Cellular Cofferdam
The in situ testing consisted of split spoon and cone penetration tests, Menard and self-boring pressuremeter tests, and Marchetti dilatometer tests. The testing program proved to be challenging...

Field Permeability Test for Earthen Liners
A sealed double-ring infiltrometer (SDRI) was developed for in-situ measurements of the hydraulic conductivity of earthen liners and covers. The characteristic of the SDRI that distinguishes...

Subsurface Soil Monitoring via Acoustic Emission
Included in this paper is an overview of acoustic emission (AE) monitoring and a brief review of past applications. Focus is then placed on two in-situ geotechnical applications; preconsolidation...

In-Situ Testing of Peat
It is often economical therefore to start geotechnical investigations with a study of maps and serial photographs and to continue with a detailed program of field reconnaissance. Standard...

Ground Improvement Evaluation by In-Situ Tests
The application of in-situ testing to the design and evaluation of a large sand densification project for the Jebba Hydroelectric Development is described. Correlation between the standard...

Permeability, and the Field Pumping Test
Methods of estimating in situ permeability of soils are discussed including laboratory tests, borehole tests and field pumping tests, with emphasis on the latter. Techniques for designing...

Use of SPT and CPT Tests for Evaluating the Liquefaction Resistance of Sands
A cone penetration test (CPT)-liquefaction resistance relationship has been established using the large body of standard penetration test (SPT) data. Factors for relating CPT tip resistance...

In Situ Testing for Ground Modification Techniques
Presented are the status of three in situ testing techniques in relation to Ground Modification and a general overview of eight Ground Modification methods with case histories and appropriate...

 

 

 

 

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