Boundary Conditions and Flow Patterns in a Mountain River
Flood flow patterns in mountain valleys may be influenced by longitudinal variations in channel and valley morphology and by temporal variations in boundary conditions. This study utilizes...
A General Theory of Channel Adjustment in High Gradient Streams
The paper presents a theory of channel adjustment in high gradient streams. This theory states that given sufficient energy, stream channels will adjust their dimensions and flow hydraulics...
3D model verification for a groyne and harbor experiment
A discussion of 3D model verification and calibration based on measurements in a flume is carried out for different test cases (groyne, harbor). The measurement data is available for public...
Sediment Transport in Sewers and Design Implications
Extended studies on sediment transport in sewers were conducted at the University of Newcastle upon Tyne and using this new as well as previously available data an attempt has been made...
Problems of Stream Flood Simulation and Prediction
The article presents a report on the natural flooding in a stream and the problems encountered when simulating and predicting stream floods. The complexity of flood characteristics, the...
An Interagency Overview of Selected Stream Sedimentation Models
The author's experience in developing stream sedimentation models is presented. The interagency study consisted of three phases. Phase one involved making an inventory of the computer...
Numerical Experiments on Instability in Unsteady Flow Modeling
The problem of numerical instability in modeling unsteady open-channel flows is investigated using the technique of numerical experiments. The model is based on the one-dimensional de...
Fortification of MMOC Models for Steep-Channel Flows
The Multimode Method of Characteristics(MMOC), designed to solve unsteady flows, is a new comprehensive scheme formulated by merging several individual characteristic schemes of the specified-time-interval...
Numerical Modelling and Laboratory Verification for the Turbulent Flow Field in the Branching Channel
Adopting the depth-averaged k-? turbulence model and using the finite volume method and SIMPLE procedure, the turbulent flow field in the branching channel is numerically solved and verified...
Partnering for Success
Partnering as a method of doing business is spreading throughout the construction industry. With everyone fed up with the litigious nature of the industry, partnering represents an opportunity...
Safety at the Site
The engineer should not be responsible for safety at the construction site. Most standard contract documents allocate this responsibility in construction means, methods and sequences to...
GPS Goes Real Time
This paper discusses the feasibility of Trimble Navigation's Site Surveyor System using Real-Time Kinematic (RTK) technology for conducting cadastral surveys. The use of RTK...
Existing Sewer Evaluation and Rehabilitation
This manual,
DSM Saves the Dam
The Miami Conservancy District built five flood control dams after the catastrophic flood of 1913 in Dayton, Ohio. Lockington Dam was one of these five hydraulic fill structures. The Ohio...
Alternative Habitat Concepts for the First Lunar Outpost
The First Lunar Outpost (FLO) Study was a NASA-wide effort to define systems for a near-term, low cost return to the Moon. The FLO habitat must support four crew on the lunar surface for...
Deliverance
Through the years, the low-bid has been the traditional contracting method for American public sector construction. Increasingly, a number of government agencies are experimenting with...
The French Composite: A Bridge for Normandy
Aside from its record breaking 856 m span, the most important fact about France's 2,141 m Pont de Normandie�the Normandy Bridge�is that it is being built at all. The bridge...
High-Grade Concrete for the Single Permanent Shotcrete Lining Method
With the single permanent shotcrete lining method in underground construction in rock, a shotcrete layer placed subsequently to the application of the supporting shotcrete replaces the...
Practical Considerations on the Use of Additives for Shotcrete
Shotcrete is mostly used today for securing rock: in this capacity, it has solved many problems and has become a necessary aid. However, thedegree of utilization of the method is still...
Construction of Shotcrete Linings Channel Tunnel
Without the use of shotcrete and the flexibility it offers in terms of tunnel profile, economy and speed of tunnelling, the project would certainly not be as far advanced as it is at present....
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