CONSTRUCTION METHOD OF HIGHWAY GRADE SEPARATED CROSSING PART OF TRAFFIC ROAD

摘要

PROBLEM TO BE SOLVED: To provide a construction method requiring no execution work site of a wide area, not stopping use of an existing traffic road, reducing influence on a surrounding area by facilitating execution work of respective processes by shallowing a road surface position of a crossing road constructed under one traffic road from an aboveground surface, capable of shortening a construction period and capable of reducing an execution work cost in the construction method of highway grade separated crossing part of the traffic road. SOLUTION: This construction method of the highway grade separated crossing part of the traffic road is characterized by the following respective processes; (1) a pile driving process for driving plural piles 2 in the periphery of the crossing part 7, (2) a replacement process for turning one traffic road 1 in the crossing part 7 to a regular road 4 supported by the respective piles 2 and (3) a crossing road construction process for constructing the crossing road 6 connected to the other traffic road 6' under the regular road 4.