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Mosty
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Rozwiązania dla inżynierii – mosty |
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Leica Geosystems jest pionierem w budowie mostów – nasze instrumenty były używane przy realizacji takich projektów jak Oresund Link (Szwecja/Dania), Millau Viaduct (Francja) oraz największego mostu łukowego na świecie – LuPu (Chiny).
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(Reporter 49, Dec 2003) The highway bridge currently being constructed over the Tarn River in Southern France will be 19 meters higher than the Eiffel Tower. At the time of publication of this Reporter issue, the highest of a total of seven bridge piers will have reached a height of 244m – merely 70% of its full height of 343m together with its steel pylon. The deck of this world’s tallest bridge, which is under construction one hundred kilometers north of Montpellier, will span the Tarn River valley at a height of 270m. więcej
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Now in the final stages of construction, the Shanghai Lu Pu Suspension Bridge, will soon become the “No.1 Arch Bridge in the World”. The central 550 meter-long steel arch, which spans the new 3,900 meter-long bridge over the Huang Pu River, is 32 meters longer than the current world record holder — the 518 meter-long New River Gorge Bridge, West Virginia, United States. To place the steel arch elements with the highest accuracy, the most precise surveying methods required the use of an automated laser Total Station Leica TCA2003. więcej
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“The scanned image allowed us to create an accurate as-built of the pipeline bridge for a minimal cost. The new process greatly enhanced the inspection results while reducing the risks associated with physical surveying of the structure.”
Larry Catalano, Principal, Farnsworth Group więcej
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“I cannot imagine anybody doing 22 bridges and associated topo in 40 days- that’s roughly 2 days per bridge — without using Cyrax — and without any inconvenience to the daily traffic. The challenge in the office was to take the massive amount of data from the scanner and strip out the necessary information. We’ve been able to use the Cyclone software to speed up that process.”
Tom Service, PLS, VP, David Evans Associates więcej
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“What we have been seeing is that Cyrax can gather thousands of points in one day which would take us weeks using traditional methods,” says the Chief of the Photogrammetry and Survey Division of the Pennsylvania Department of Transportation, Bradley Foltz. Mr. Foltz is the author of the article, "3D Laser Scanner Provides Benefits for PennDOT Bridge and Rockface Surveys," which appears in the May 2000 issue of Professional Surveyor magazine. więcej
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The “Big Dig” in Boston is the single largest, most complex and technologically challenging highway construction project ever undertaken in the United States. więcej
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"A feasibility study of the Cyrax laser scanning technology was conducted to assess its capabilities for construction site inspection work for the California Department of Transportation." A case study was made on this study and is available for download. To download simply click on the PDF icon: więcej
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Bicie rekordu w Tsing Ma – budowa mostu. więcej
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The major civil engineering project currently being undertaken in the northern part of Europe is the construction of a road and rail link to cross ÿresund, the narrow sea passage between Denmark and Sweden. więcej
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Rozpostarty na 620m most Yang-Pu należy do największych i najruchliwszych przepraw wiszących świata. Bardzo ważne jest więc określenie stabilności konstrukcji obiektu oraz prowadzenie regularnych kontroli jego bezpieczeństwa. Na przestrzeni ostatnich lat obserwowaliśmy dynamiczny rozwój technologii pomiarowych, a co za tym idzie wzrost dokładności prac wykonywanych w coraz krótszym czasie. Zastosowanie zmotoryzowanych tachimetrów elektronicznych Leica rozpoznających automatycznie cel w połączeniu w oprogramowaniem do badania przemieszczeń i odkształceń tworzy efektywny system kontrolno-pomiarowy, o którym można przeczytać na dalszych stronach. więcej
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Na najdłuższym moście wiszącym świata znajdującym się w Japonii założona została kontrolna sieć stacji referencyjnych złożona z precyzyjnych odbiorników GPS firmy Leica Geosystems. Przedsięwzięcie umożliwia monitorowanie ruchów konstrukcji w czasie rzeczywistym z milimetrową dokładnością. więcej
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A Leica TCA 1800 automatic target recognizing precision total station, controlled by the Leica APS Win Software, was in use when a bridge was moved by 23 metres below the Inter City Express main rail axis Mannheim-Frankfurt. This work on the Mannheim- Blumenau railway line was carried out by the Mannheim office of Bilfinger + Berger Bauaktiengesellschaft.
The surveyor responsible for the measured control of the undertaking H. P. Echsle, describes this operation for our readers. więcej
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Measure inaccessible points sequentially with a high degree of repeatabilty with the Leica TCA2003 Automated total station. więcej
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