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Performance of High Capacity Caissons Founded on Decomposed Rock
The results of six load tests on large diameter caissons founded on decomposed rock are presented and analyzed. The caissons ranged from 1.5 m to 2.5 m in diameter and were 20 m to 23...

Skin Friction Load Test for Caissons in Residual Soils
Results of a load test on a drilled pier are presented. The test was performed to measure only skin friction of a 36 inch (0.91 m) diameter shaft without support at the end. The load test...

Interpretation of Load Tests and Drilled Shafts?Part 3: Lateral and Moment
Existing interpretation methods for lateral and moment load tests are reviewed critically, and a qualitative and quantitative comparison is made for selected methods. A new method is proposed...

Geophysical and Nuclear Methods for Non-Destructive Evaluation of Caissons
Non-destructive testing techniques were used to confirm the concrete integrity on the caisson foundations for the 45-story Ohio Corporate Headquarters building in Cleveland, Ohio. The...

Pile-Drilled Caisson Combination for Foundation of High Rise Building
The analysis and evaluation of several alternatives for foundations of a high rise office building is presented, which resulted in the selection of a combination of high capacity piles...

Presented in 3-D
Stone & Webster started development in 1985 on a mainframe based computer system that provides the capability to integrate all plant information into a single integrated plant...

Computer Networking Needs in Engineering Technology
This paper deals with the planning and implementation of a local area network at the University of Arkansas at Little Rock in the new $13 million Engineering Technology and Applied Science...

A Tale of Two Subjects: Modern Physics and River Mechanics
The Einsteins, father and son, made some of the greatest contributions to physics and to river mechanics, respectively. The modern phases of these two subjects are of roughly equal age....

Model Study of Side Slope Riprap
Laboratory experiments were conducted in 10-m long channels having 1.5 H : 1 V side slopes protected with a 20.7-mm diameter rock layer 1.5 diameters thick. Four models were tested. In...

Wave?Current Interaction and Sediment Transport
The paper reports on a study into whether a close relationship between the mixing (diffusion) coefficient for the sediment, ?_s, and the mixing (diffusion)...

The Effects of Velocity on Scour
Four effects of 'velocity' on scour are discussed: clear-water scour, scour by light sediment-transporting flow, mode of movement, and kinetic terms included...

A Coastal Hard Rock Sediment Budget for the Inner Bristol Channel
The dominant input into the inter-tidal zone from the hard rocks bordering the inner Bristol Channel is clastic material. This is derived from coastal recession as a result of subaerial...

Model Study of Potential Debris Problems at the Proposed Diversion of Clover Fork River, Harlan, Kentucky
A study was conducted at the Waterways Experiment Station in Vicksburg, Mississippi, using a physical and a numerical model, to evaluate the entrance conditions at a proposed tunnel diversion...

Idealized Debris Flow in Flume with Bed Driven by a Conveyor Belt
The generalized viscoplastic fluid (GVF) model is used to derive the theoretical expressions of two-dimensional velocities and surface profile for debris flow established in a flume with...

Important Aspects of Annual Energy Calculation Techniques for Low Head Hydro Power Plants
Annual energy calculations are frequently used to optimize design parameters at a turbine site and to compare energy production based on equipment offers from various suppliers. In this...

Uplift under Concrete Dams on Rock
While the possible existence of uplift pressures within dams and foundations is no longer questioned, there is still considerable controversy over the magnitude and distribution of uplift...

Uplift Pressure below Gravity Dams on Rock
The magnitude of the uplift force at the base of a concrete gravity dam founded on rock is strongly dependent on the properties of the discontinuities within the rock mass. This paper...

Lopez-Angostura Power Tunnel
The Lopez-Angostura Project is located on the Yaque del Norte River in the Dominican Republic near the City of Santiago. A 24 m high dam, a 3.6 km long power tunnel, a pit powerhouse with...

Design Considerations for a Penstock Located in an Outlet Tunnel at the Jennings Randolph Dam in West Virginia
The proposed production of hydropower at this flood control-recreation dam involves the installation of a 78 inch diameter steel penstock at the crown of the existing tunnel. The penstock...

Dam Rehabilitation and Fish Lift Design at the Pejepscot Hydroelectric Project
The rehabilitation work on the existing rockfilled timber crib dam comprised an assessment of the existing dam stability; analysis of the existing hydraulic conditions to establish the...

 

 

 

 

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