Application of Fuzzy Logic in Civil Engineering in Japan
In various engineering fields, many applications of fuzzy logic have been attempted, some of which have been applied for practical use. In this paper, civil engineering applications of...
An Overview of the Analysis and Design Techniques Used on the Main Tunnels of the SSC
Sophisticated numerical analysis and design techniques were devised for the Supercollider in order to produce a design which closely reflected the constraints of the construction processes,...
Prediction of Ground Deformations Due to Excavation-Application to Tunnel Lining Design in Weak Rock
Prediction of ground deformations due to excavations is simulated by three dimensional non-linear finite element analyses. It considers various in-situ ground stress levels, excavation...
Three Dimensional Simulation of Progressive Tunneling Process for Lining Design of Intersecting Tunnels in Soft Rock
This paper presents the results of the state-of-the-art three-dimensional nonlinear finite element modeling of progressive tunneling process and its comparison with field data. Reasonable...
Eliminating Water Column Separation and Limiting Backspin at a 12,000-Horsepower Pumping Plant
Milwaukee's Water Pollution Abatement Program includes a deep tunnel system which collects combined sewage and street runoff during storms for later treatment when capacity is available...
A Computer-Controlled, Precision Pressure Standard
The operating principles as well as the technical aspects of the implementation of a precision pressure standard are presented here. The instrument can have dual use: either as a pressure...
Unsteady Spillway Inlet Conditions at the Weatherford Water Supply Reservoir
The Weatherford Water Supply Reservoir, in Weatherford, Texas has had frequent lake-side flooding and has experienced unstable spillway operation. Residents complained that the water had...
Computer Calculations Speed Tunnel-Lining Design
A computer program handles the computations and simplifies a method that sets forth the vast amounts of tunnel concrete lining design information in a single diagram. Using the principle...
Light at the End of the Chunnel
While the construction of the Channel tunnel was an engineering triumph, the project also had its share of cost overruns, inadequately prepared contract documents, and disputes over safety...
High Level Radioactive Waste Management 1994
The proceedings of the fifth International Conference on High Level Radioactive Waste Management, held on May 22-26, 1994, Las Vegas, Nevada, continues a concerted effort to transfer technology...
Japan Builds 21st Century Monuments
Japanese civil engineers are designing and constructing an extensive array of 21st century landmarks that incorporate innovative technology applied to industrial restructuring, advanced...
Enter the Dragon
The Chien Tan Dragon Boat train will be the flagship station of the 87 km Taipei Rapid Transit System (RTS) in Taiwan, which consists of eight heavy rail lines, two medium-capacity lines...
New Way Out
An obsolete and hazardous ventilation/emergency-exit shaft on the banks of the Hudson River has been replaced with a deep, dual-shaft system that connects to a 100-year-old train tunnel...
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 Uses of Reinforced Shotcrete in Underground Projects in Canada
The first use of steel fibre reinforced shotcrete (SFRS) in Canada was using the wet-mix process in the support of deteriorated ground in 80 year old railway tunnels in the Fraser Canyon,...
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...
Guidelines for Shotcrete Support in Hard Rock
The writer is working on a handbook on shotcrete in hard rock. The work is sponsored by the Swedish Power Board, Development Division. The main contents are: Choice of shotcrete support...
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...
Development of Mechanized Wet Mix Shotcrete Application in Norwegian Tunnelling Industry
From 1971 to 1980 wet mix shotcrete won the Norwegian market 100%. In the same period hand held spraying was replaced by hydraulic manipulators. From 1980 to 1986, steel fibre use increased...
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