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Grouting Through a River
A regional sewer district in Ohio is implementing a master plan to separate storm and sanitary flows, decommission some old treatment plants and upgrade others. Part of the plan, the West...

Soft Ground Not Easy Ground for TBM
The King County Department of Metropolitan Services (formerly called Metro), faced with the need to transfer wastewater from the West Seattle drainage basin to a secondary treatment plant...

San Francisco CSO
Today, even a light rain can overload San Francisco's combined sewer overflow (CSO) system, sending untreated sewage and stormwater into the bay and ocean. This is especially...

Piggyback Tunnels
Coincidental alignments of the Central Artery Tunnel and the Transitway subway line under the streets of Dewey Square in Boston presented the sponsoring agencies with a rare opportunity...

Shotcrete for Underground Support VII
This proceedings consists of papers presented at the Shotcrete for Underground Support VII Conference held in Telfs, Austria, June 11-15, 1995. It covers three broad themes concerning...

Camden Composting
The 201 Facilities Plan for Biosolids Management prepared for the Camden County Municipal Utilities Authority (CCMUA) recommended in-vessel composting as the ultimate biosolids disposal...

Rest in Peace
Engineers working on a subway connection project in the nation's capital successfully employed chemical grouting techniques--some never tried before--to protect a historically...

Study of Interaction Between Pneumatic Spherical and Cylindrical Form Shells Subjected to Wind Pressure
In the design of pneumatic membrane structures, analysis of stress and deformations of structures subjected to wind is among the most important requirements. For the purpose of studying...

Depressing Traffic Top-Down
Top down construction will permit the City and County of Denver to maintain traffic at two congested intersections while a tunnel is driven below them. The project, which will carry Speer...

Cut and Cover Construction of the SSC Injector Tunnels
The injector system of the Superconducting Super Collider (SSC) constitutes the string of tunnels where protons are accelerated to near the speed of light and injected into the main collider...

The Challenge of Housing the Largest Detector
The most innovative part of the structural-civil design of the Superconducting Super Collider (SSC) is that of the underground experimental halls located alongside the 86 kilometer collider...

An Overview of Shotcrete Usage on the SSC
Shotcrete has been widely used on the Superconducting Super Collider for initial support of tunnel excavations in both the strong and weak rock formations encountered. Different types...

Wind Deflection Probability Analysis
A statistical analysis is performed which analyses the probability of various magnitudes of deflections of a cable-stayed roof occurring due to wind uplift. Extensive wind analyses were...

Wind Effects and Countermeasures During Erection of a Cable-stayed Bridge
The cable-stayed bridge over the Karnali River in the Kingdom of Nepal was completed in 1992. Extensive wind tunnel testing indicated the likely wind response during construction. Several...

Wind Studies of the Owensboro Bridge, Kentucky
Wind tunnel studies on the Owensboro Bridge are described in this paper, including 1:50 scale sectional model tests and 1:160 scale aeroelastic model tests. Comparisons are presented and...

Wind Loads on Low Rise Structures: A Survey
Because of the large investment, high rise buildings are usually tested in a wind tunnel to provide the best wind loading information possible. Since low rise structures each represent...

Roof Space Frame Design of the C.K.S. Airport Passenger Terminal II
This article attempts to provide a description of the characteristics of the Second Terminal Airport. To comply with the functional requirement of the magnificent facade and spacious design...

Akashi-Kaikyo Bridge Underconstruction
This paper presents 1) brief history of the survey work, 2) brief description of the physical dimensions and structural system, 3) major studies for the design, 4) development of higher...

Boston's Backup Water Supply
For fifty years, Boston's sole real source of water has been the Hultman Aqueduct, but now final design is almost complete on the MetroWest Supply Tunnel, a new, larger conduit...

The Channel Tunnel: Larger Than Life, and Late
The Channel tunnel opens in May, but passenger service will be delayed while final testing on trains and electrical systems are completed. The English Channel tunnel crossing is the world's...

 

 

 

 

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