| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of constructing a temporary landing bridge available at sea and on land, which is small in the number of construction steps in the field, shortens a construction period, is excellent in construction efficiency and construction accuracy, and ensures the installation accuracy thereof on the ground. SOLUTION: According to the method, a truss frame consisting of side members, cross members, and diagonal members connecting intersections between the side and cross members, is arranged at a predetermined altitude from a sea level or a land level, and fixed piles are driven along guide pipes provided for the truss frame, followed by temporarily fixing the truss frame to the fixed piles. Thereafter support piles each formed of a steel pipe are driven inside the guide pipes into the ground, and down-the-hole hammers are inserted into the respective steel pipes to excavate the ground to a predetermined depth. Further the support piles are further deeply driven, and beam seats and girders are sequentially fixed on the truss frame, followed by laying lining plates on the girders. COPYRIGHT: (C)2005,JPO&NCIPI
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