Composite Bridges for High Speed Trains

Composite Road and Railway Bridges in Germany

The Political Science of Acid Rain
Emission control engineers must understand the politics and science of acid rain. Current research indicates that acid rain can be connected with lake acidification. But it can not be...

The Williamsburg: Rehab After All
Whether to repair or replace the Williamsburg Bridge has been seriously debated in New York City for years. Recently, a blue ribbon panel of technical advisors appointed by the Mayor conducted...

Combined-Sewer-Overflow Control in West Germany — History, Practice and Experience

Swirl Concentrators Revisited. The American Experience and New German Technology
The Swirl Concentrator is a small, compact, 'no moving parts' solids separation device. Its function is to act as as a static combined sewer overflow (CSO) regulation...

An Approach to Quality-Orientated Management of Catchment Areas with Artificial Ground Water Recharge
In the Federal Republic of Germany the artificial ground water recharge is primarily used to replenish the ground water resources for municipal drinking water supply. Only in some cases...

Status and Experiences Made in the Artificial Recharge of Ground Water in the Federal Republic of Germany
With a rate of 72%, ground and spring water is the most important raw material for drinking water supply in the Federal Republic of Germany. Ground water, however, is not available everywhere...

Dioxin and Resource Recovery
The 1987 ASCE Dioxin and Resource Recovery Symposium was held at the New York Hilton Hotel, New York on February 10, 1987. The conference served as an opportunity to assess the issue of...

Computers Board Equipment
Construction equipment is slowly being automated, either with remotely operated radio controls or by on-board computers that control repetitive tasks. Contractors in the United States...

History of Seawalls and Revetments on the Island of Norderney

The Far-Field Littoral Drift System and Sedimentation in a German Coastal Section

Shoreline Protection of the East Frisian Islands of Norderney and Langeoog
The seven East Frisian Islands protect as a natural barrier chain a part of the German coastline. In order to protect the health and bathing resorts against erosion, people constructed...

The Dioxin Situation in West Germany
The public discussion in Germany of the 'dioxin problem' has recently become more rational than it was three years ago. Emotions and hard facts are in a balance...

Excavation in Hard Clays of the Keuper Formation
For the construction of a lock on the Main-Danube-Canal in South Germany a 30 m deep cut had to be excavated in the overconsolidated clays and claystones of the Keuper formation. The strength...

Microtunneling: No Pipe Dream
Microtunneling machines developed in Japan and Germany can help install pipes, ducts and cables without disrupting urban activities at street level. A microtunnel is defined as having...

Jet Grouting: Snail's Pace of Adoption
Jet grouting is grouting of soil, but the process, the equipment and the subsurface product are different from the familiar ones. Here the cement grouting is mixed in situ with the surrounding...

Composite Bridge Design in Germany
A span length between 40 m and 12 m has been regarded as optimal up to the mid-60's for a composite design to compete with prestressed concrete or steel alternatives. With...

Composite Columns—Design and Examples for Construction
The new German standard DIN 18806, part 1 gives the rules for the design of composite columns. The general method, taking into account all the inhomogeneties of the two materials steel...

A German Multi Purpose Offshore Diking Project and its Effects on the Morphology and Ecology of the Adjacent Tidal Flats
Since the catastrophic storm surge of 1634, the southern part of the north Frisian coast (West Germany) is in a state of non-equilibrium. Permanent erosion takes place in this area, with...

 

 

 

 

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