JP2010285745A - Greening construction method for mortared/concreted slope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening construction method which does not involve separation of existing mortar and discharge of industrial wastes, prevents a bedrock material from flowing out, and enables early and long-sustained greening of a concrete surface. <P>SOLUTION: According to the greening construction method for a mortared slope using a planting mat to achieve long-sustained greening, in a greening range on the slope covered with mortar and concrete, a proper number of anchor bolts for bolting the planting mat are set in place, and water-supply holes for supplying water from a natural ground to the planting mat are formed in place. The slope in the greening range is covered with a root-preventing sheet for preventing intruding roots from blocking the water-supply holes, and then is coated with a layer of carried-in soil 3 cm in thickness. The planting mat carrying seeds is bolted with the anchor bolts as planting mats with planting cases are fixed at intervals of 1 to 5 square meters. Hence mixed planting involving European lawn grass, shrubs, and perennial plants is carried out for early greening of the slope. The edge of the greening range is covered with a protective cover for preventing the outflow of carried-in soil and ingress of wind. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is a technique related to a greening method for fixing a planting mat body to a mortar slope / concrete slope to restore a natural landscape and reduce environmental load.

  There are many sites where the slopes of steep slopes etc. are covered with mortar and concrete to prevent collapse, but the landscape covered with mortar and concrete is very murderous without the surface greening for a long time. These slopes have been criticized for their impact on the environment, such as being said to cause warming by reflecting sunlight.

  Therefore, the need for greening has increased, and as a greening method to meet this demand, the mortar surface is peeled off and the spraying greening method using a vegetation base, and the fall prevention metal fitting (soil stopper) is attached to the mortar surface without peeling off the mortar surface. A greening method (see Patent Document 1) in which a soil base material is kneaded and muddy is sprayed after being covered with a wire mesh, and a method of greening by putting a net on a concrete surface and causing ivy to grow.

However, the greening method by peeling the mortar surface and spraying the vegetation substrate requires a great deal of labor and cost for peeling the mortar, and the large amount of peeled mortar requires processing as industrial waste. In addition, in the construction method in which the slope is covered with a wire mesh using the metal fittings (soil stopper) of Patent Document 1 and the soil base material is sprayed from above, the soil stopper is attached to prevent the sprayed base material from slipping. There is a concern that the soil base material will be washed away by rainwater. In addition, the tree planting method that stretches nets on the concrete surface and spreads the ivy reduces costs, but the growth of ivy is slow, and covering the entire concrete surface has the problem of several years to several years depending on the construction area .
JP-A-9-250134

  Then, in view of the subject which the conventional tree planting method has, this invention prevents the outflow of a base material, without peeling existing mortar, and aims at providing the early greening of a concrete surface and a long-term maintenance greening method.

  In the present invention, an appropriate number of anchor bolts for fixing the planting mat body are attached at appropriate positions in the greening range of the slope that is covered with mortar or concrete, and water is supplied from the natural ground to the planting mat body. After setting up the water supply holes in the appropriate place and blocking the inside of the water supply holes with the roots, the anchoring sheet is applied to the place where the planting mat body is laid, and the anchor is applied. Fix the planting mat body with seeds to the bolts and the planting mat body with the planting case at an interval of 1 to 5 square meters. It is a mortar slope revegetation method to protect.

  Attach a protective cover for preventing soil outflow and preventing wind intrusion around the edge except for the upper part around the edge where the vegetation mat body and the vegetation mat body with a planting case are installed. In addition, on the mortar slope with many irregularities, a space is created between the planting mat body and the planting mat body, and a planting mat body that fits the construction site is encapsulated and installed on site. Mortar slope revegetation method that can cover the mortar slope with a planting mat.

  When installing vegetation nets with seeds or vegetation mats, etc. on the conventional slope, anchor pins are placed on the vegetation nets laid on the slope in consideration of workability and greening speed, etc. Attempts have been made to plant trees on the slope, but anchor pins cannot be installed unless drilling is performed. It was possible, and a greening method was unavoidably taken by spraying the base material. In the present invention, the planting mat body is not pressed against the slope by placing anchor bolts on the planting mat, but the planting mat body is pressed against the anchor bolts previously placed on the slope, and the nut Since it is fixed by, it can be safely installed on the bedrock, mortar, and concrete slopes that require drilling without entanglement of the net or mat to the drill, and early greening can be surely performed. Furthermore, in the case of spraying the base material, the base material tends to flow out due to rainwater such as heavy rain, but the base material in the planting mat formed of a material that is difficult to humus is retained for a long time without flowing out. In addition, water retention is enhanced by the formation of water supply holes, customer soil layers and protective covers, enabling long-term greening with natural water, and the mortar surface where the planting mat body is installed is covered with green and the aging mortar surface Can be prevented. Therefore, it is economical and can reduce various environmental loads without destroying the existing mortar slope. In addition, if watering equipment is installed in the above mortar slope revegetation method, it will be possible to plant trees even on straight walls such as retaining walls.

Hereinafter, embodiments of the greening method of the present invention will be described in detail with reference to the drawings.
1) is a perspective view of a planting mat body 1 known from Japanese Patent Application No. 2007-062212, and (b) is a cross-sectional view showing the structure of the planting mat body 1. FIG. The composition is formed by layering a polyethylene plain woven net sheet 1a through which plant roots pass from the bottom and a polyester nonwoven fabric 1b through which plant roots are passed in this order to form a bottom, and vegetation base soil 1c (cocopyt, moss, Bark compost, peat moss, black soil mixed with turf seeds, organic fertilizer, slow-acting fertilizer, and artificial fertilizer) are spread over 4 cm to 10 cm thick and formed into 2 cm to 5 cm thick vegetation base soil, On top of that, a rayon nonwoven fabric 1d through which plant buds and roots pass, and a polyethylene plain woven net-like sheet 1a through which plant buds and roots pass are formed in this order to form the upper part, and the bottom part and upper part are integrated to form a vegetation of vegetation base soil The planting mat body 1 is formed by sewing with a sewing thread 1e that is less likely to be corroded at predetermined intervals in the vertical and horizontal directions so as to suppress movement within the base body and to hold the structure.

FIG. 1 explains the procedure from the measurement of the planting mat body installation position first installed on the mortar slope to the installation and fixing of the planting mat body.
B) The size of the anchor bolt placement hole 3 for fixing the planting mat body of 1 m long × 1 m wide × 5 cm thick on the mortar surface 2 is adjusted to the diameter of the anchor bolt at intervals of about 50 cm. Drill the 9 holes and the mortar layer with a drill with 4 holes of water holes 4 with a diameter of around 20 mm leading water from the natural ground to the planting mat body.
B) The anchor bolt 5 having an exposed portion of about 8 cm and an insertion length of about 7 cm is placed and fixed in the anchor bolt placement hole 3 of the a to prevent the root of the plant from entering and closing the water hole. Therefore, the root-proof sheet 6 that allows water to pass but difficult to pass through the root is adhered to the water hole mouth using an adhesive.

(C) in Fig. 2 shows that the soil is absorbed between the mortar surface and the planting mat body, which absorbs moisture, to prevent moisture suction from the planting mat body and to improve the water retention capacity. As a layer, apply soil 7 (high quality soil, bark compost, water retention agent, adhesive, mixed with water) with a thickness of about 3 cm, and use it as the foundation for planting mat body installation.
D) Press the planting mat body 1 against the exposed anchor bolts to pass through them, attach the bolt nuts 8 with washers to the anchor bolts, and tighten them to fix the planting mat body 1 to the mortar slope. To do.

FIG. 3 is a perspective view showing an anchor bolt cover that can penetrate the anchor bolt and the planting mat body of the fixture.
(B) is a perspective view showing the anchor bolt 5 of the fixing bracket, and there are several notches 5c in the lower part, and an insertion pile 5a that pushes the notch part is inserted in the upper part. The screw 5b is cut. This anchor bolt is installed by inserting a hole in the mortar slope or the like into which the anchor bolt can be inserted with a drill, and inserting the anchor bolt. Pushes the lower notch 5c portion of the anchor bolt and is fixed inside the mortar.

(C) in FIG. 3 is a perspective view showing an anchor bolt cover that allows the planting mat body to pass through the anchor bolt fixed to the mortar slope, and has a thickness and length covering the anchor bolt, and the tip is formed at an acute angle. An anchor bolt cover 9 is shown.
(D) is a perspective view showing a state where the anchor bolt cover 9 is attached to the anchor bolt 5 fixed to the mortar slope.

  In FIG. 4 a), an appropriate number of anchor bolts 5 are fixed at appropriate positions on the mortar surface 2, a soil 7 is applied on the mortar surface 2, an anchor bolt cover 9 is installed on the anchor bolt 5, and then on the anchor bolt cover 9. It is sectional drawing which showed the state which pressed the planting mat body 1 and penetrated the planting mat body 1. FIG. In addition, an appropriate place refers to the concave part of an uneven surface, and an appropriate number is the number of the anchor bolts which make 9 plants per square meter as standard, and fix the planting mat body in close contact with the mortar slope.

(B) is an explanatory view showing a state in which the planting mat body 1 is closely fixed to the mortar slope 2.
B) Remove the anchor bolt cover that has penetrated the planting mat body 1 by the procedure shown in (b), attach the bolt nut 8 with a washer to the thread on the upper part of the anchor bolt, tighten the nut with the washer, and fix the planting mat body 1 to the mortar. The customer's soil 7 is sandwiched between the slopes 2 and fixed firmly.

  FIG. 5 shows a planting mat body with a planting case in which a planting case is incorporated into a planting mat body in order to plant trees in addition to conventional turf on the mortar slope. It is explanatory drawing which showed the planting mat body with a planting case which plantes a shrub and perennial grass in a planting case, and plans planting green of landscape improvement type. A) Overlays the nonwoven fabric 11 and the Russell plain weave net 12 on the resin net 10, and forms an outer peripheral member and a bottom member of the planting case. B) Assemble the outer peripheral member and the bottom member in the planting case 13. (C) is a cross-sectional view showing a state in which the assembled planting case 13 is fixed to the planting mat body 1 using bolts 14 and nuts 15. (D) is a planting mat body 16 with a planting case that is installed in a mortar plane at intervals of 1 to 5 square meters to plant trees with trees and the like.

  FIG. 6 shows that in the case of the existing mortar slope, as the years go by, gaps and cavities 17 that contribute to mortar sliding often occur between the ground 18 and the mortar surface 2 due to rainwater or the like. The existing mortar surface containing such dangers has a standard ratio of 1 piece per 4 square meters, and a thread with a thickness of 13 mm and a length of 0.5 m to 1 m at the four corners where the planting mat bodies touch each other. The anchor pin 19 is provided to penetrate the mortar surface 2 and is fixed to the ground 18, and the mesh-type presser 19 a is passed through the head screw thread, and the bolt nut 19 b is attached and tightened again. Integrate. In order to prevent pull-out, the anchor pin to be placed is fixed in place by anchoring the anchor pin 19 deformed into a U-shape so as to increase the frictional force in the drilled hole. Is integrated.

  Fig. 7 shows the prevention of outflow of customer soil due to wind and rain and the evaporation of moisture in the mat by the wind blown to the bottom of the mat body around the edge except the top of the planting mat body installed in the greening area according to the procedure of Figs. It is a top view which shows the state which attached the protective cover which aims at. Protective cover 20 is a PVC sheet that is resistant to corrosion and is standard 20cm in width and 4m in length, and has a stainless steel wire 20b with a thickness of 2 to 3mm on both left and right ends, and a hole with eyelet 20a through which a binding band passes at 20cm intervals. Has been. As for the installation method, a protective cover 20 is placed about 10 cm along the periphery of the planting mat body 1 and the planting mat body 16 with a planting case, and the polyethylene plain woven net-like sheet on the surface of each planting mat body and the protective cover 20. The banding band 21 is passed through the eyelet 20a and is bound to cover the periphery. On the mortar surface side, a fastener 22 with a hook hook near the position of the eyelet 20a is adhesively fixed to the mortar surface, and the eyelet 20a and the fastener 22 are bound and fixed by a binding band 21, and the inside of the protective cover 20 is secured. The formed stainless wire 20b is fixedly installed on the mortar surface with fixing bolts 23 in a state of being stretched from both ends.

  Figure 8 shows the planting mat body with 24 seeds of short grass turf on the mortar slope and shrubs with short grass turf seeds while preventing the weathering of the mortar face without breaking the existing mortar slope. It is completion sectional drawing which shows the greening condition by the planting greening method which fixed the planting mat body with a planting case which planted 25 and perennial grass 26.

It is the perspective view and sectional drawing which show the planting mat body. It is explanatory drawing which shows the procedure which fixes a planting mat body to a mortar slope. It is a perspective view which shows the anchor bolt and anchor bolt cover of a fixing tool. It is explanatory drawing which installs and fixes a planting mat body to an anchor bolt. It is explanatory drawing which shows a planting mat body with a planting case. It is sectional drawing which shows the state which integrated the existing mortar surface and the natural ground again with the anchor pin. It is a top view which shows the state which attached the protective cover around the edge of the planting mat body. It is sectional drawing which shows the example which greened the mortar slope with the turf grass and the shrub.

DESCRIPTION OF SYMBOLS 1 Planting mat body 1a Polyethylene plain woven net-like sheet 1b Polyester nonwoven fabric 1c Vegetation base soil 1d Rayon nonwoven fabric 1e Sewing thread 2 Mortar surface 3 Anchor bolt placement hole 4 Water hole 5 Anchor bolt 5a Insert pile 5b Screw 5c Notch 6 Prevention Root sheet 7 Customer soil 8 Bolt nut with washer 9 Anchor bolt cover 10 Resin net 11 Non-woven fabric 12 Russell plain weave net 13 Planting case 14 Bolt 15 Nut 16 Planting mat body with planting case 17 Cavity 18 Ground mountain 19 Anchor pin 19a Mesh presser 19b Bolt nut 20 Protective cover 20a Eyelet 20b Stainless steel wire 21 Binding band 22 Fastener 23 Fixing bolt 24 Short grass turf 25 Shrub 26 Perennial grass

Claims (3)

  Attach an appropriate number of anchor bolts at the appropriate location on the slope that is covered with mortar or concrete, cover with the root-proof sheet at the appropriate location to prevent the invasion of plant roots, provide water supply holes, and the land is approximately 3 cm thick. The planted mat body is pressed against the anchor bolt with an acute bolt cover set at the tip to penetrate the mat body, and then the vegetation mat body is fixed to the slope with a bolt nut with a washer. Mortar slope revegetation method. In the mortar slope revegetation method for fixing the planting mat body with the anchor bolt according to claim 1, the planting mat body with a planting case was installed at an arbitrary interval, and the planting was performed with shrubs and perennial grasses. A mortar slope revegetation method characterized by attaching a windbreak protection cover around the edge of the planting mat body excluding the upper part.   In the mortar slope revegetation method according to claim 1 and claim 2, in the case of a slope with a space between the planting mat body and the planting mat body, there are many irregularities scattered, Mortar slope planting method characterized by laying the formed plant mat body.

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