JP5964367B2 - Tree planting method on retaining wall - Google Patents

Description

  [Technical Field] The present invention is a technique related to a planting planting method for planting trees using a vegetation mat and a pillow sandbag on an outer wall surface of a retaining wall or a concrete slope.

  Generally, steep slopes and retaining walls are covered or formed with concrete. The wall surface covered or formed with such concrete does not harmonize with the surrounding environment and cannot be said to be preferable for the landscape. Furthermore, the wall surface using such cement becomes high temperature by direct sunlight and raises the ambient temperature, and contributes to the heat island phenomenon especially in urban areas.

  Therefore, a method of preventing the heat island phenomenon by greening the concrete outer wall surface such as the retaining wall surface is taken. This method can be applied to conventional methods such as greening the outer wall surface by placing a wall planted from the ground below the concrete retaining wall over the outer wall surface or a net stretched at a slight interval. Overlay the lower layer base consisting of sand, water retention agent, humus soil and cement adhesive, and overlay the upper layer base layer composed of water retention agent, humus soil and cement adhesive on the surface of the lower layer base, plant plants on the upper layer base, or The construction method of greening the retaining wall surface of Patent Document 1 to be seeded is used.

  However, the conventional construction method has a problem that it takes several years to recover and greening of the outer wall surface by the vine planted from the ground below the retaining wall is only partially promoted. This method involves spraying a 10cm thick base material directly onto the outer wall surface without using a net and a 3-5cm base material on it using a large machine, so construction costs increase and the slope of the retaining wall surface is steep. However, there is a problem that construction on a steep retaining wall is impossible because the base material slides down.

JP 2004-36095 PR

  Providing a revegetation method that makes it possible to easily replant the entire outer wall surface in a short period of time even on concrete walls of any gradient.

  The basement soil will not slide down even on the vertical outer wall surface, and will be planted using a vegetation mat that can be vegetated. The vegetation mat body fixed to the outer wall surface is a 5cm thick mat body wrapped with a lightweight non-woven fabric with excellent water and fertilizer power and a non-woven fabric made of polyester and a shading net sheet made of material that is not easily corroded by sunlight, wind or rain. Sewn and formed, and fixed to the wall with concrete anchors, plugs, dimension bolts and nuts. At this time, the cutting bolt is set to a length that supports the pillow sandbag to be formed later.

  Next, a cylindrical bag is formed of a polyester nonwoven fabric. At this time, the nonwoven fabric is sewn so as to protrude several centimeters from the left and right sides of the bag. After the fertilized soil is inserted and sealed in the sewn bag body, it is wrapped with a plastic lattice net to form a pillow sandbag body, and the surface of the vegetation mat body fixed to the outer wall surface protrudes from the nonwoven fabric of the pillow sandbag body. Adhere closely to the vegetation mat body and fix it in a ladder step using chopping bolts and fasteners.

Perennial grass and shrubs are planted between the fixed pillow sand sac and the vegetation mat body, and the vegetation mat body and pillow sand sac body are resistant to dryness and can grow well even with cuttings. Planting the stems and leaves to plant the entire vegetation mat body and allowing rainwater to flow from the inside of the vegetation mat body with a pillow sandbag fixed to the upper part of the retaining wall to the vegetation mat body with the pillowcase of the lower stage A method of fixing the rainwater receiving device and greening the retaining wall.

  The method of greening the retaining wall using the vegetation mat body can be installed in a narrow place where a machine cannot be installed without using a large machine, and the outer wall can be greened at an inexpensive construction cost, resulting in early greening There is a greening method that can be used, and it is a method of greening the concrete outer wall that can harmonize with the surrounding natural environment, preserve the landscape, block direct sunlight, and prevent the occurrence of the heat island phenomenon.

It is explanatory drawing which shows the vegetation mat body fixed to a concrete wall surface. It is a perspective view which shows the bag body which fits in a pillow sandbag body. It is a perspective view which shows a pillow sandbag body. It is a perspective view which shows the vegetation mat body with a pillow sandbag body. It is explanatory drawing which shows planting of a perennial grass and a shrub, and a rainwater receiving apparatus. It is a perspective view which shows the state planted to the planting mat body with a pillow sandbag body.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory view showing a vegetation mat body fixed to a concrete wall surface, and in order from the bottom, a polyethylene plain woven shading net sheet having a shading rate of 85 to 90%, a polyester non-woven fabric, 5 cm thick artificial soil (cocopyt, peat moss, water (Moss, bark compost, slow-acting fertilizer, organic fertilizer, and chemical fertilizer are mixed) Polyester non-woven fabric, polyethylene plain woven shading net sheet with a shading rate of 65-70% are stacked in order, and the bottom and upper parts are sewn at regular intervals. A vegetation mat body 1 having a width of 1 meter and a length of 1 meter is formed.

  The vegetation mat body made of a light-shielding net is highly resistant to infrared rays and ultraviolet rays, and protects the basement soil contained in the summer sun and winter cold without being corroded. Long-term growth is possible.

The method of installing and fixing the vegetation mat body 1 on a concrete wall surface such as a retaining wall is driven by embedding concrete anchor plugs 3 on a concrete wall surface 2 at an installation position at regular intervals, and a sizing bolt 4 having a predetermined dimension is inserted into the concrete anchor plug 3. screwing, covered with a bolt sack 5 tip is sharp tip portion of the dimensionally switching bolt 4 projecting vegetation mat body seams vertically between parallel to a predetermined bolt sack 5 in a position to become a pressing plant raw mat body 1 the pierce, remove the bolts sac penetrates to secure the vegetation mat member 1 tightening wall 2 with a washer 6 and the nut 7 to the dimensionally switching bolt 4.

  At this time, the length of the cutting bolt is such a length that the pillow sandbag body to be installed and fixed in FIG. 4 can be fixed, and the material used is a stainless cutting bolt which is not easily corroded.

  FIG. 2 shows a bag body containing fertile soil that fits in a pillow sandbag body. A tubular body having a diameter of 5 to 8 cm and a length of 1 m is formed from a polyester nonwoven fabric having a thickness through which the root is passed, and the bag body 9 is formed so that the nonwoven fabric 8 protrudes from the longitudinal direction of the tubular body by more than a dozen centimeters. After the sewing, fertilized soil containing organic matter, microorganisms, fertilizer, and the like is inserted into the bag body, and the inlet is bound and fixed.

  As shown in Fig. 5, the non-woven fabric protruding from one side of the longitudinal direction of the bag body should be covered with fertile soil so that perennial grass and shrubs can be planted in the depressions formed by the vegetation mat body and the pillow sandbags being closely fixed. In order to prevent the fertilization soil from flowing out when the soil is covered, the contact portion between the planting mat body and the pillow sandbag is covered with a non-woven fabric protruding from the bag body.

  FIG. 3 shows a bag made of fertilized soil formed in FIG. 2 and wrapped in a plastic grid net 10 having a mesh of 1.5 to 3 cm, and is bound and fixed using a binding band or the like at a constant width. The body 11 is assumed. At this time, the nonwoven fabric 8 protruding from the bag is formed so as to protrude from the plastic lattice net 10.

Wrapped the fertile soil-filled bag body with a plastic grid-like net pillow sandbag body, strongly to Ri broken song, etc., even a pillow sandbag body to the vegetation mat body which is fixed to the vertical retaining on the walls horizontally formed deformation This is a pillow sandbag body that is kept horizontal without causing tilting of plants planted on the pillow sandbag body and sliding of the covering material.

  FIG. 4 shows a state in which the pillow sandbag body is fixed to the vegetation mat body. A clasp formed in a curved shape so that the pillow sandbag body 11 is horizontally placed on the cutting bolts 4 protruding at regular intervals from the vegetation mat body 1 fixed to the retaining wall, and the pillow sandbag body 11 is held. 12, the pillow sandbag body 11 is fixed on the cutting bolt 4 with a washer and a nut to obtain a vegetation mat body 13 with a pillow sandbag body. The non-woven fabric protruding from the pillow sandbag body is formed on the vegetation mat body in contact with the vegetation mat body from the lower part of the pillow sandbag body (explained in FIG. 2). The body is fixed.

  By fixing the pillow sandbag body to the vegetation mat body and forming a space to cover the fertile soil, it is possible to plant perennial grass and shrubs without cutting the vegetation mat body or pillow sandbag body, and install it on the wall The vegetation mat body with a pillow sandbag body can be used for a long period of time, and the roots of the planted plant are stretched and fixed inside the vegetation mat body or the pillow sandbag body and scattered by strong wind or vibration. There is no long-term greening of the wall.

  In FIG. 5, fertilized soil 14 is covered with a depression where the vegetation mat body 1 and the pillow sandbag body 11 are in contact with each other, and seedlings of perennial grass and shrubs 15 are laid without damaging the pillow sandbag body 11 and the vegetation mat body 1 on the covered ground surface. Planted so as to be sandwiched between the ground silt body 11 and the ground contact surface portion of the vegetation mat body 1, catching rainwater on the upper part of the vegetation mat body 13 with a pillow sandbag formed on the upper surface of the wall, and receiving rainwater for natural water supply to the mat body A device 16 is formed.

  This rainwater catcher is shaped like one with widened wings so that it is easy to catch rainwater, and the other is formed vertically so that it can be easily installed on the wall. Cylindrical water outlets are formed at regular intervals so as to flow into the body, and the water outlet part is inserted into the upper part of the vegetation mat body, and the vertical part in contact with the wall surface is fixed to the wall surface with bolts. It is made of a resin plate that is not easily corroded by the device.

  The vegetation mat body installed on the vertical retaining wall has a small amount of water to absorb moisture such as rainwater, and it was difficult to grow plants, but the vegetation mat body with a pillow sandbag body received rainwater on the vegetation mat body. Pillow sand sac body that can secure water necessary for the growth of the plant because it is possible to absorb water from the upper part of the vegetation mat body, and also to absorb rainwater from the pillow sand sack body formed in the ladder step shape. A vegetation mat body.

FIG. 6 shows the state of planting on the planting mat body 13 with a pillow sandbag installed on the retaining wall surface. The perennial grass and shrub 15 are planted between the fixed pillow sandbag body 11 and the vegetation mat body 1,
The vegetation mat body 1 and the pillow sandbag body 11 are planted by inserting plant stems and leaves 17 such as flower sedums and pine bugs that are strong against drying and sufficiently grow even with cuttings, and plant the matting body 13 with a pillow sandbag. Plan.

By planting perennial grass and shrub seedlings so that the vegetation mat body and the pillow sandbag body are in close contact with each other, the roots extend to both basement soils of the vegetation mat body and the pillow sandbag body. Etc. are not scattered. Moreover, it becomes possible to absorb water from two places of the vegetation mat body and the pillow sandbag body, and long-term greening by the plants planted on the outer wall surface is possible.

The method of greening the retaining wall using a vegetation mat with a pillow sandbag is a greening method that enables early greening that can greenen the outer wall at a low cost, and in harmony with the surrounding natural environment, The method of greening the concrete outer wall that can be preserved, blocks direct sunlight, and prevents the heat island phenomenon is likely to be used in the future as a restoration method for the natural environment.

DESCRIPTION OF SYMBOLS 1 Vegetation mat body 2 Wall surface 3 Concrete anchor plug 4 Cut bolt 5 Bolt sack 6 Washer 7 Nut 8 Non-woven fabric 9 Bag body 10 Grid-like net 11 Pillow sand bag 12 Clasp 13 Vegetation mat body with pillow sand bag 14 Fertile soil 15 Perennial grass and shrubs 16 Rainwater receiving device 17 Stem and leaves

Claims (1)

After fixing the vegetation mat body retaining wall outer surface, and fixed pillows sandbags of a plurality of the the plants raw mat body, the upper part of the plant planted mat member, so that one to be easy to catch the rainwater spread the wings The other side is vertically formed so that it can be easily installed on the wall surface, and a cylindrical water outlet is formed at regular intervals so that rainwater flows into the vegetation mat body at the bottom. A rainwater catching device is installed in which the running water inlet is inserted into the upper part of the vegetation mat body, and the vertical part in contact with the wall surface is fixed to the wall surface with bolts, and the perennial grass is in the recess where the vegetation mat body and the pillow sandbag body contact greening method to the retaining wall, characterized in that and shrubs planted, the vegetation mat body and pillows sandbags body early greening of the retaining wall and planting flowers.