WATER-RETURNING STRUCTURE USING STEEL-PIPE-COLUMN-LINE EARTH-RETAINING WALL AND METHOD FOR CONSTRUCTING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a structure capable of returning water using a steel-pipe- column-line earth-retaining wall. ;SOLUTION: Steel-pipe-column-line earth-retaining walls A, A are constructed with a construction foundation between them, and a water-permeable layer B filled with gravel or crushed stones is formed on their backs and is communicated to the inside of each steel pipe 1 by water holes 5. A circulation opening 7 is provided in the lower portion of each steel pipe 1, and the opposite steel pipes 1, 1 are connected together by a communicating pipe 20 at the circulation openings 7, 7 in such a way that water is allowed to freely pass through them. Underground water in back soil E is collected in the water-permeable layer B and one steel pipe 1 and then allowed to enter the other steel pipe 1 by way of the communicating pipe 20 and flow to the soil E from the water- permeable layer B, whereby it is returned to its initial place.;COPYRIGHT: (C)1998,JPO