PROBLEM TO BE SOLVED: To provide a construction method which can easily prevent the leakage of water and the wash-out of the construction work of a bank at a low cost, and enables the soil or the like of the original ground to be used in its natural condition.;SOLUTION: A particle-sealing body (6) is provided which seals a particle containing the soil at a part which is a penetration line of a bank body by an impervious sheet.;COPYRIGHT: (C)2007,JPO&INPIT
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