Underground Transit Station Construction in Japan
Technologies used in Japan for constructing underground stations for heavy-rail urban rapid transit systems are described. Two example projects have been chosen that illustrate different...

Urban Impacts of Water Supply Reservoir
Water quality of Lake Houston, a rapidly urbanizing water supply reservoir near Houston, Texas, was characterized in terms of sediments, nutrients, and algal population. Data was collected...

Boundary Element Analysis of Fluid Domain
The boundary element method of analysis is applied to the calculation of hydrodynamic pressures in a reservoir impounded by a gravity dam and subjected to a harmonic ground motion., It...

Beam Web Shear Connections: An Experimental Study
Bolted shear web connections were tested to evaluate the 1978 AISC Specification provisions concerning edge distance, end distance, and bearing stresses. Tests wee performed on beams with...

Flow Under Weir on Scoured Bed
An approximate analysis for seepage flow under a weir, resting on isotropic porous medium of infinite depth, with a vertical sheet pile at the toe and a segmental circular scour, is obtained...

Safety Factor of Dams and Retaining Walls
Whatever the definition of the safety factor against overturning of dams and retaining walls, the state of minimum stability occurs when there is some water present in front of the wall....

Wave Spectrum Changes on Sloped Beach
A comparison of all the different approaches to analyze the problem of wave spectrum change on a sloped beach is presented. It is shown how the heuristic, theoretical and numerical formulations...

Shock Pressure of Breaking Waves on Vertical Walls
Breaking wave impact on vertical walls is studied experimentally with beaches having four different slopes. It is found that a breaking wave having its front face parallel to the wall...

Structural Response of Skew RC Box Girder Bridge
Analytical and experimental results obtained in a study of a large-scale 45° skew two span four cell reinforced concrete box girder bridge model are presented. The model, which was a 1:2.82...

Design of Pedestrian Space in Airport Terminals
A method to determine the required width of corriders and size of passenger staging areas in airport terminals is presented. It introduces two novel elements into the planning process...

Regulation of Engineers in California
State-administered certification programs for the engineering profession are unjustified and should be eliminated. The reasons for this conclusion have nothing to do with the peculiarities...

Simulation Approach to Assess Highway Performance
A procedure is presented that can be utilized to estimate the impacts of alternative financing policies and other highway related factors on future highway system performance. The approach...

Dispersion in Three Dimensions: Approximate Analytic Solutions
Solutions to three-dimensional convection dispersion equation under different boundary conditions are obtained by integrating the appropriate Green's functions. Two approximations...

Drainage Systems for Land Treatment of Wastewater
Simulation methods for design and evaluation of drainage systems for wastewater land treatment sites are presented. The methods are based on the water management model, DRAINMOD, for describing...

Visual Intrusion Impact of Residential Traffic
An investigation of the nature of visual intrusion impact of traffic in residential neighbourhoods is presented. The specific purpose of the study is to discover if residents perceive...

Construction Industries and Metrication
A national survey of architects, engineers, contractors, material suppliers and manufacturers is conducted to determine what they feel about conversion to the SI system of measurement....

Cost Estimating for Conventional Water Treatment
The Safe Drinking Water Act of 1974 emphasizes the need to take costs into consideration when promulgating regulations. This paper presents cost equations that can be used for water treatment...

Prevention and Resolution of Construction Claims
The owner and architect/engineer's roles in the prevention and resolution of construction claims are examined. A carefully written contract is invaluable in the prevention...

Interaction of Hydrolyzed Al and Polyelectrolyte Coagulants
A laboratory jar test study was conducted to determine the mode of action of commercial cationic polyelectrolytes used in combination with aluminum salt coagulants. Electrophoretic mobility...

Wave and Earthquake Response of Offshore Structures: Evaluation of Modal Solutions
Direct numerical integration of the equations of motion is used to evaluate the adequacy of modal solutions, as applied to the analysis and design of large offshore structures under wave...

 

 

 

 

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