JPS633087B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that a plurality of through holes are formed in a sandproof and flexible sheet with a wire mesh fixed to the back surface, and the upper edge of a cover plate for opening and closing the through holes is attached to the sheet. The slope of the backfilling rubble section formed on the reclaimed side of the embankment body is covered with the sheet, and fixed piles are driven into the backfilling rubble section through the wire mesh of the through hole, and the sheet is covered with the sheet. This relates to a method of laying a slope covering sheet that is fixed to the surface, and air and seawater that are forced into the backfilling rubble by waves and tides are released to the outside through the holes, and the covering sheet is fixed to the surface. This prevents the sheet from being stirred, prevents the slope from being washed away, and prevents the covering sheet from sliding down.

Conventionally, the sand-proof sheets that cover the backfilling rubble section that have been provided can be agitated by air and seawater that are forced into the backfilling rubble section from between the levee body and the sky due to waves and tides. In addition, there is a drawback that the slope of the backfilling rubble section may collapse due to waves, etc. before the reclamation is completed, and the covering sheet may slip down due to the input of reclaimed soil or compaction, and the fixed part at the top of the covering sheet may break. However, as a result of various experimental studies, the present inventors have obtained the present invention which does not have these drawbacks.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. A wire mesh 1 having a wire diameter of 2 to 3 mm and a mesh size of 50 to 100 mm is fixed to the back surface with a thickness of 1 to 6 mm using an appropriate fixing means.
Preferably, a plurality of through holes 3 with a size of 10 to 20 cm x 20 to 20 cm are formed in a sheet 2 having sandproof properties and flexibility, such as soft polyvinyl chloride or canvas, with a size of 3 to 7 m x 6 to 20 m. are bored in the upper part, and the upper edge 5 of a cover plate 4 made of sandproof and flexible material such as soft polyvinyl chloride or canvas and having a thickness of 1 to 6 mm is sized to close these through holes 3. It is fixed to the sheet 2 by welding or other fixing means, and the upper edge of the sheet 2 is fixed to the top of the embankment body 6 or the reclaimed side 7 of the top using studs 8 or other suitable fixing means with the wire mesh 1 as the inner surface. , the slope 10 of the backfilling rubble section 9 formed on the reclaimed side 7 of the embankment body 6 is covered with the sheet 2 with the wire mesh 1 as the inner surface, and the wire mesh is passed through the wire mesh 1 exposed in the through hole 3. A fixed pile 12 having a head 11 that holds down the wire mesh 1 is driven into the backing rubble section 9, and the sheet 2 to which the wire mesh 1 is fixed is fixed to the slope 10. The left and right sheets are connected by welding or other appropriate connection. It is done by means.

In the present invention, the wire mesh 1 is wrapped around the lower edge as the outer surface, and the upper edge of the sheet 2, which is the free edge, is attached to the top of the embankment body 6 or the reclaimed side 7 of the top with rivets 8 or appropriate fixing means, with the wire mesh 1 as the inner surface. and while unwinding it, lay it on the slope 10 of the backfilling rubble section 9,
Fixed stakes 12 are passed through the wire mesh 1 of the plurality of through holes 3 and driven into the backing rubble portion 9.

In the present invention, a plurality of through holes are bored in a sandproof and flexible sheet with a wire mesh fixed to the back surface, and the upper edge of a cover plate for opening and closing the through holes is fixed to the sheet. A slope surface of a backfilling rubble portion formed on the side is covered with the sheet, and a fixed stake is driven into the backfilling rubble portion through the wire mesh of the through hole to fix the sheet to the slope surface. This is a method of laying a slope covering sheet to cover the slope, and the waves and tides force air and seawater into the backfilling rubble area through the spaces and spaces between the embankment bodies and push the cover plate open through the holes and release it to the outside. The wire mesh 1 installed on the slope prevents the slope from being washed away by waves, etc., and prevents the collapse of the slope in the backfilling rubble area and the cutting of the sheet due to the weight of the reclaimed earth and sand. In addition to covering the slope without causing damage, the wire mesh on the back increases the frictional resistance against the slope and the fixed piles prevent the sheet from sliding down due to consolidation of reclaimed soil.
This prevents damage to the fixed portion of the sheet and prevents earth and sand on the landfill side from being discharged outside the embankment body.

[Brief explanation of the drawing]

FIG. 1 is a sectional view after the sheet is laid, FIG. 2 is a plan view of the sheet, FIG. 3 is an enlarged partial sectional view, and FIG. 4 is a partially cutaway plan view of FIG. 3. 1...wire mesh, 2...sheet, 3...through hole, 4...cover plate,
6... Embankment body, 7... Reclamation side, 9... Back filling rubble section, 10...
Slope, 12...Fixed pile.

Claims (1)

[Claims] 1 A plurality of holes are drilled in a sand-proof and flexible sheet with a wire mesh fixed to the back side, and the upper edge of a cover plate for opening and closing the holes is fixed to the sheet, and the sheet is placed on the reclaimed side of the embankment body. The method is characterized in that the slope of the formed backfilling rubble portion is covered with the sheet, and a fixed stake is driven into the backfilling rubble portion through the wire mesh of the through hole to fix the sheet to the slope. Method of laying slope covering sheet.