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...

Buckling of Corrugated Open Cylindrical Shells
The purpose of this study is to determine the critical buckling stress of open cylindrical shells with sinusoidal corrugations with free longitudinal edges subjected to uniform compression...

Bed Material Sorting in Pools and Riffles
When rivers flow in a series of riffles and pools during periods of low flow, bed material sizes change from coarser to finer in the riffle-pool sequence. The Froude Number also changes...

Laterally Loaded Piles in a Two-Layer Soil System
Typical results for pile head displacement and maximum moment in nondimensional terms, for a laterally loaded free-head pile embedded in a two-layer soil system, using elastic approach,...

Sampling with Decomposed Variance
In many problems of statistical sampling in civil engineering a prior distribution reflecting some global population is available and a small sample of observations is made on a particular...

Node Factor Variations and Joint Occurences
In constructing exceedance frequency distributions for extremal heights resulting from joint occurrences of tsunamis or storm surges and the astronomical tide, a period of time for the...

Defining Cost-Effective Salinity Control Programs
Marginal cost analysis based on current damage estimates indicate that the optimal salinity control program involving PL 93-320 projects in the Upper Colorado River Basin would cost about...

Channel Design to Minimize Lining Material Costs
A direct algebraic technique is developed to determine open channel cross-sectional designs which minimize lining material costs when base and side wall unit costs are different. Solution...

Quality Control During Construction of Power Plants
The need for quality control during the construction of power plants has always been recognized as beneficial. Federal law requires a comprehensive program be provided to control and assure...

Shallow Foundation on Frozen Soils: A Bibliography
This bibliography, prepared by the Committee on Shallow Foundations, provides a list of current publications on the analysis and design of shallow foundations on frozen soils. The bibliography...

Stresses on Rapidly Sheared Fluid-Solid Mixtures
Constitutive equations were derived describing the stress in a rapidly sheared mixture of granular cohesionless solids and a Newtonian fluid. These equations are considered to describe...

Seismic Behavior of Moment Connections and Joints
The behavior of moment connections and beam-column joints in moment resisting steel frames subjected to severe earthquakes is studied. The cyclic inelastic deformation capacities of different...

Modified Analysis of Reinforced Concrete Beams
A method for analyzing reinforced concrete beams and beam-columns is developed, and the analytical results are compared to experimental data obtained by other investigators. The present...

Compression Effects in Batch Settling Tests
The effect of compression resistance on terminal settling velocity results obtained from batch tests has been studied by means of dimensional and numerical analyses, and comparison with...

Dynamic Rail Overturning: Modelling and Application
An analytical model for examining the dynamic equilibrium is utilized to determine the lateral deflection and rotation of the rail subjected to time dependent lateral and vertical forces,...

Pipeline Stability Under Finite-Amplitude Waves
The lateral stability of a bottom-laid pipeline under finite-amplitude waves which are shoaling on a mildly-sloping, rigid beach is considered. Incipient sliding motion conditions are...

Calculation of Secondary Currents in Channel Flow
A model is presented for calculating the flow in channels with turbulence-driven secondary motion, with an emphasis on open channel flow. Algebraic expressions are derived for the Reynolds...

Reinforced Gypsum for Egyptian Housing
Reinforcement of gypsum for wall and roof panels is investigated using Egyptian gypsum combined with fibers and Nile reeds. Panels reinforced with jute, glass wool, wire, polypropylene...

Prediction and Control of Pedestrian-Induced Vibration in Footbridges
Footbridges vibrate because the forces imparted by the user are applied with the frequency of the pace and movement, however small, is therefore a forced vibration. In instances where...

 

 

 

 

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