FR2917103A1 - Fascine implanting method for implanting e.g. plant, involves pre-perforating of fascine, and placing extractable cylindrical sleeves permitting creation of cavities during fabrication of fascine - Google Patents

Abstract

The method involves pre-perforating of a fascine, and placing extractable cylindrical sleeves (4) permitting creation of cavities (2) during fabrication of the fascine. Height and diameter of the sleeves vary on the same fascine to permit introduction of root balls of a plant (5) or slips in the cavities after extraction of the cylindrical sleeves and a covering (1) is cut at the level of the cylindrical sleeves. An independent claim is also included for a fascine comprising extractable cylindrical sleeves.

Description

Fascines are structures used to stabilize or prevent

  erosion of riverbanks or slopes susceptible to landslides. They are made in different ways and processes, and look like a sausage more or less long and of diameter included on average between 20 centimeters and 1 meter. These strands are made of fibrous materials (wood fibers, coconut, etc.) or interwoven branches, compressed and held firmly in an envelope. In order to improve their visual integration in the environment, the contractor in charge of his installation is more and more often brought to plant plants on the fascine. For this, it is necessary for him to make a hole larger or smaller depending on the size of the plant motte concerned. This work is long and delicate; It considerably weakens the fascine because the fibers or branches that constitute it must be broken, removed and removed in order to create the cavity that will host the plant root ball.

  The present invention relates to a model of pre-drilled fascine for easily implanting plants without changing its structure. During manufacture, cylindrical sleeves (4) of various materials (plastic, wood, metal) are placed perpendicular to the fibers or branches that make up the body of the fascine (3). The assembly is then compressed and held in a net of natural or synthetic fibers, which constitutes the envelope of the fascine (1). Figures 1, 2, 3 and 4 show views of the structure thus manufactured. The dimensions of the various parts that make up this type of fascine are variable from the moment when the assembly retains a good rigidity and remains dimensionally stable, which implies that the diameter of the sleeves (4) is at most equivalent to the diameter of 1/4 fascine. The locations of the sheaths (4) can be used for planting plants with their root ball, cuttings, or for fixing the fascine with live wooden piles (large cuttings) or dead.

  The diameter and the height of the sleeves (4) can vary on the same fascine thus allowing to introduce plant clumps or cuttings of different species and sizes, taking into account the surrounding vegetation. The density of the sleeves (4) is variable. Figures 5 and 6 show the implementation of this structure.

35 After having installed the pre-holed fascine at the intended location, the envelope (1) is cut out at the sleeves (4), then these are removed by a simple movement from bottom to top as illustrated by the arrow (Figure 5). The location of the sheath (4) then forms a cavity (2) which serves as a receptacle for the root ball of the plant (5) or the cutting. The implantation of the plant is a simple movement up and down as shown by the arrow in Figure 6. The sleeves (4) are extracted from the fascine at the time of planting. This type of pre-drilled fascine can be easily planted without changing its structure may weaken it. The establishment of a vegetation on the fascine can take place either immediately after its installation, or after a period more or less long so that the plantation takes place in a favorable period while the fascine is generally installed in period low water for bank stabilization or in dry periods for embankments. The plants planted in this way are kept in their original culture clod and do not undergo stress caused by the manipulation of the root system or its compression between the fibers or branches that make up the body of the fascine.

Claims (4)

  1) Fascin implantation method characterized by the pre-drilling of the fascine.   2) Process according to claim 1 characterized by the establishment of removable cylindrical sleeves for creating cavities, during the manufacture of the fascine.   3) Process according to claims 1 and 2 characterized in that in the cavities after extraction cylindrical sleeves, are introduced root clumps of previously cultivated plants or cuttings.   4) Fascine characterized in that it comprises extractible cylindrical sleeves whose erniplacemîents form cavities for accommodating 10 plants.