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1、Apron Wharf Structure for Fairview Container Terminal P. L. Norlander P.Eng.,1 D. B. Jennings P.Eng.,2 G. J. Harrison P.Eng.3 1WorleyParsons Westmar, a division of WorleyParsons Canada Ltd., 400 - 233 West 1st Street, N

2、orth Vancouver, BC, V7M 1B3, Canada; PH (604) 985-6488; FAX (604) 985-2581; email: Paul.Norlander@worleyparsons.com 2WorleyParsons Westmar, a division of WorleyParsons Canada Ltd., 400 - 233 West 1st Street, North Vanc

3、ouver, BC, V7M 1B3, Canada; PH (604) 985-6488; FAX (604) 985-2581; email: Dan.Jennings@worleyparsons.com 3WorleyParsons Westmar, a division of WorleyParsons Canada Ltd., 400 - 233 West 1st Street, North Vancouver, BC,

4、V7M 1B3, Canada; PH (604) 985-6488; FAX (604) 985-2581; email: Geoff.Harrison@worleyparsons.com ABSTRACT This paper describes the design and construction of wharf modifications at the existing Fairview Terminal in Prin

5、ce Rupert, British Columbia, to provide a berth capable of accommodating 12,500 TEU container vessels with drafts up to 15 m. A piled apron structure was designed in front of the existing concrete gravity caisson wharf

6、. This structure shifted the berth face offshore to deeper water and minimized the amount of dredging required and also the potential for undermining the caissons. The berth fender system was developed to minimize ris

7、k of impact for both vessel hull to structure and vessel hull to container crane. The response of the soil-caisson-apron structure under seismic load conditions led to challenging design details to accommodate the exp

8、ected displacements and meet stringent performance criteria. INTRODUCTION Project location and background. Fairview Terminal is located on the northwest coast of British Columbia at the south end of the City of Prince

9、Rupert and is administered by the Prince Rupert Port Authority (PRPA). The terminal was originally developed as a bulk/break-bulk terminal in the early 1970s by the Canadian Federal Government through the National Har

10、bours Board, and was subsequently expanded in the late 1980s. Principal commodities handled at the terminal were forest products, bulk solids, bulk liquids and general cargoes. Declining throughputs at the terminal com

11、bined with the surging growth of international container trade on the west coast of North America and the competitive advantages of the port resulted in a decision to convert Fairview Terminal to a container handling

12、facility. Key factors leading to the decision were the safe deep- water and ice-free approaches, the shortest land-sea route between China and central 1163 Ports 2010: Building on the Past, Respecting the Future © 2

13、010 ASCEPorts 2010 Downloaded from ascelibrary.org by Changsha University of Science and Technology on 03/10/14. Copyright ASCE. For personal use only; all rights reserved.? A centre longitudinal wall and eight cross wa

14、lls that divide the caisson into 18 cells. The caissons were partially constructed in a dry dock and then floated out for finishing, towed to site, and sunk into place on a prepared rock mattress. Prior to caisson pla

15、cement, the site was dredged of all soft or unsuitable seabed materials and backfilled to the required elevation with rock fill. Figure 2. Cross-section of Existing Concrete Caissons. After placement, the caisson cells

16、were filled with rock. The front cells were only partially filled to reduce toe bearing pressures. Front cell concrete cover slabs and a concrete cope beam were then cast-in-place. Cover slabs and key slabs were also

17、installed between caissons to prevent loss of backfill. Expansion joints were installed in the cope beam between caissons to accommodate any differential movement. DESIGN CRITERIA FOR NEW CONTAINER BERTH Key design cri

18、teria selected for the new container berth are as follows: ? Wharf Structural Loads (Service): ? Operating crane wheel loads: 800 KN/m ? Deck uniform storage load: 50 KPa ? Container handling equipment (reach stacker

19、) axle load: 1,000 KN ? Design vessels and berthing criteria are summarized in Table 1. 1165 Ports 2010: Building on the Past, Respecting the Future © 2010 ASCEPorts 2010 Downloaded from ascelibrary.org by Changsha

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