| 摘要 |
PROBLEM TO BE SOLVED: To minimize effects to traffic caused by construction work of a depressed road by reducing a temporary work involved in execution to shorten a construction period and to reduce traffic regulations, furthermore to disperse the stress applied over the temporary structures and underground structures to reduce the cost of members constructing these structures, in the structure of the depressed road. SOLUTION: Continuous piles 3 are provided along both sides of the depressed road 1, and the piles 3 are used for both earth retaining walls and side walls to shorten the construction period and to reduce cost. Thus, the depressed width is narrowed and also the construction yard 27 is narrowed to minimize the effects to traffic. Additionally, the bottom plate 4 constituting the depressed road 1 is formed so as to be connected to the piles 3 on both sides to obtain an H shape cross section of the underground structure, thereby constituting a pile draft structure having both a pile foundation and a direct foundation, with a structure stable against the uplift of building frames in a place having a high underground water level and the liquefaction of the ground. COPYRIGHT: (C)2006,JPO&NCIPI
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