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Computer Control of CSOs
Like many older cities, St. Louis has a combined sewer system and is faced with the difficulties of dealing with combined sewer overflows (CSOs). The Metropolitan St. Louis Sewer District...

Vietnam: Firsthand Feedback
Impressions and advice on doing business in Vietnam. Black & Veatch was the first U.S. engineering firm in Vietnam. Wayne West, BV's man in Hanoi, and James Patton,...

Information, Global-Style
The quality, timeliness and accuracy of information can give an international architectural, engineering and consulting firm a distinct competitive advantage, and the wrong system can...

Geotechnical Baseline Reports
The greatest percentage of disputes in underground construction results from subsurface conditions that are different than from what is indicated in the contract. Adding geotechnical baseline...

Standard Practice for Concrete for Civil Works Structures
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 8 This manual provides guidance for the investigation...

Materials for Tomorrow's Infrastructure
A Ten Year Plan for Deploying High Performance Construction Materials and Systems (Executive Report)
Prepared by the Civil Engineering Research Foundation. This executive report presents a high-level, policy-oriented summary of the High-Performance...

Materials for Tomorrow's Infrastructure
A Ten Year Plan for Deploying High Performance Construction Materials and Systems (Technical Report)
Prepared by the Civil Engineering Research Foundation. This report presents a detailed program to transform our nation's infrastructure....

Calendar: Bridges 1995
Featured bridges are: Lacey V. Murrow Floating Bridge (WA); Waco Suspension Bridge (TX); Rexleigh Bridge (NY); Hernando Bridge (AK & YN); Third Street Bridge (PA); Klamath River...

Questioning Composites
Steel, concrete and timber are, of course, the most commonly used construction materials. Composites, or fiber reinforced plastics, have been used in specialty applications in construction...

Design of Shotcrete Support from the Rock Mechanical Viewpoint
When designing tunnel support the key question is to determine the loading conditions resulting from the deformation of the rock mass during and after excavation. Principle views are given...

Design and Application of Integrated Shotcrete Linings for Underground Openings in Weak Rock Masses
Tunnels and caverns excavated in weak rock masses require special consideration in terms of shotcrete lining design. Shotcrete as a support medium for weak rock provides major benefits...

Reduction of Head Losses in Tunnels by Means of Shotcrete
Head losses in blasted rock tunnels conveying water to hydropower stations often significantly reduces the energy production in the plant. Typical values on the head losses in tunnels...

Active Tunnel Design?A New Concept for Predesign, Contractual Lay-out and Construction Management
Active tunnel Design is a new concept for design, layout of specification and contract, and for construction management of tunnels and underground carverns. Investigations yeild more information...

Fire Testing of Shotcrete Samples in a Small Furnace
The fire resistance behaviour of 8 shotcrete samples were investigated in a laboratory furnace applying ISO 834 standard test. Shotcrete was applied on 20 to 30 cm thick granite slabs...

Steel Fiber Reinforced Shotcrete?For Rock Support and Fire Protection
Rapid development in concrete technology and development of equipment has led to a change from dry hand-operated to wet robot shotcreting in Norway. Shotcrete of more than 100 MPa cube...

Use of Long, Variable Length Steel Fibres in Shotcrete
Steel wires are cut to fibres in a shotcrete nozzle and directly incorporated in the ejected shotcrete. Long and variable length fibres can be used. The fibre material is better utilized...

Steel Fibre Reinforced Wet Shotcrete with Very High Deformation Capacity
Tests have been carried out under site conditions in Norway where the performance of 40 mm long DRAMIX fibres was compared with normally used 30 mm fibres. The fibres were mixed into the...

Fibre Reinforced Shotcrete Case Studies of Wet and Dry Processes
Both wet shotcrete and fibre reinforced shotcrete are being increasingly utilised in the South African mining industry. This Paper describes two applications of fibre reinforced shotcrete...

Reinforced Shotcrete Linings as Part of an Integrated Support System Used in a High Stress Mining Environment
Shabanie and King Mines are situated in the Southern part of Zimbabwe, some 60 km apart and approximately 200 km east of Bulawayo. They are the largest underground operations in Zimbabwe...

Network Management Using GIS
This paper is concerned with the opportunities that arise from combining digital highway networks, relational databases, GIS technology, specialist application software, and workstation...

 

 

 

 

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