JPH0742704B2 - Water-holding reinforced stratum containing fertilizer for vegetation for reinforced slope and its construction method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for constructing a fertilizer-containing water retention reinforced stratum that is used when greening by reinforcing an inclined surface such as an embankment or a retaining wall.

[Conventional technology]

Conventionally, as a construction method for reinforcing an inclined surface such as an embankment or a retaining wall, a construction method has been known in which sand and continuous long fibers are sprayed on a slope to be reinforced to form a reinforced stratum composed of a mixture of sand and long fibers. There is.

[Problems to be Solved by the Invention]

In recent years, greening has been desired as a measure for environmental protection and landscape of slopes such as levees and retaining walls. However, in the case of a reinforced formation formed by simply spraying only sand and continuous filaments, the vegetation of the plant is insufficient because it lacks the nutrients and water retention necessary for plant growth.

An object of the present invention is to provide a water retention reinforced formation containing a fertilizer for slope reinforced greening, which has nutrients and water retention necessary for plant growth, and a construction method thereof.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in the method for constructing a water-retaining reinforced formation containing a fertilizer for sloping surface reinforced greening of the present invention, the sand injection nozzle 27 mounted on the self-propelled vehicle 6 is rotated conically while tilting. The sand 1 is continuously sprayed on the surface, and continuous long fibers 2 are supplied and guided by a fiber guide member having a fiber guide hole provided in a boom constituent member of the self-propelled vehicle 6, and the self-propelled vehicle 6 is also provided. Boom components in 16
The continuous long fibers 2 are jetted toward the sand spraying portion from the jet nozzle 50 attached to the oscillating nozzle support member 39 provided on the tip end side of the reinforcing base layer 3 to form the reinforcing base layer 3. On the surface, a soil improving agent consisting of a mixture of sand, water retaining material and fertilizer is sprayed from a soil improving agent spraying nozzle 72 mounted on a self-propelled vehicle 6 to form a fertilizer water retaining material-containing soil layer 4 for reinforcing a sloped surface. First construction method of water retention reinforced formation containing fertilizer for greening
As an invention, while the sand jet nozzle 27 mounted on the self-propelled vehicle 6 is conically rotated, the sand 1 is continuously sprayed on the inclined surface, and the self-propelled vehicle 6 is directed toward the sand spray part.
The continuous long fibers 2 are jetted from the jet nozzle 50 provided in the above to form the reinforcing ground layer 3, and the mixed material of sand, water retention material and fertilizer is sprayed on the surface of the reinforcement ground layer 3, and the soil containing fertilizer water retention material is sprayed. A second aspect of the present invention is a fertilizer-containing water-holding reinforced stratum for sloping surface reinforced greening forming layer 4.

〔Example〕

 The present invention will now be described in detail with reference to the illustrated example.

1 to 12 show a fertilizer-containing water retention reinforced stratum construction device that can be used when the present invention is carried out, showing a self-propelled vehicle 6 equipped with an endless track 5 and a drive device for traveling. A swivel base 8 swiveled by a swivel drive device is attached to the frame 7, a driver's cab 9 is fixed to the swivel base 8, and the base end of the first boom component member 10 is abscissa relative to the swivel 8. The first boom constituting member 10 is pivotally attached to the middle portion of the first boom constituting member 10 and the swivel base 8 are connected to each other via a boom elevation hydraulic cylinder 12, and the first boom constituting member 10 has a second boom forming portion at the tip thereof. The base end side portion of the member 13 is pivotally attached by the horizontal shaft 14, and the base end portion of the second boom component member 13 and the first boom component member 10 are boom bending / extending hydraulic cylinders 15.
Further, the base end portion of the third boom component member 16 is pivotally attached to the tip end portion of the second boom component member 13 by the horizontal shaft 17, and the link 18 is attached to the tip end side portion of the second boom component member 13. One end of the link 19 is pivotally attached to one end of the third boom component 16, and one end of the link 19 is pivotally attached to the middle of the third boom component 16. The other end of each link 18, 19 and the intermediate portion of the second boom component 13 are booms. The first and second boom component members 10, the second boom component member 13 and the third boom component member 16, the boom bending and extension hydraulic cylinders 15 and 20, and the links 18 and 19 are connected to each other via the bending and extension hydraulic cylinder 20. A refraction boom 21 is configured.

A vertical axis 23 fixed to a base end portion of a support arm 22 is rotatably fitted to a tip end portion of a third boom component member 16 of the bending boom 21, and a tip end portion of the third boom component member 16 is provided. Drive device for arm rotation consisting of hydraulic motor fixed to the arm
A rotating shaft of 24 is connected to the vertical axis 23, a downward opening box-shaped case 25 is fixed to the lower end of the tip of the support arm 22, and a flexible tube 26 made of a hose is provided at the tip of the support arm 22 and the case.
The flange fixed to the upper end of the flexible tube 26 is fixed to the upper part of the support arm 22.
An upper end of a sand jet nozzle 27 made of a metal pipe is detachably connected to a lower end of 26 by a joint 28.

The sand jet nozzle 27 is inserted into the through hole 30 of the turning member 29,
A nozzle swiveling drive device 31 composed of a hydraulic motor is fixed to the case 25 at one side of the flexible tube 26, and a crank type drive shaft 32 is attached to a rotary shaft of the nozzle swiveling drive device 31.
The upper end of the crank type driven shaft 33 having the same eccentric amount as the crank type drive shaft 32 is fixed to the case 25 on the other side of the flexible tube 26 so as to be rotatable. The lower ends of the crank type drive shaft 32 and the crank type driven shaft 33 are rotatably fitted to the swivel member 29, and the swivel members are prevented from falling off at the lower ends of the crank type drive shaft 32 and the crank type driven shaft 33. Support member 34 is detachably attached,
When the nozzle turning drive device 31 is operated, the turning member 29
The sand jet nozzle 27 is swung in a conical shape by the swiveling member 29.

A support metal fitting 35 fixed to the side portion of the support arm 22 has a support shaft with an intermediate portion of the support member 36 extending in the support arm longitudinal direction.
A nozzle support member that is pivotally connected by 37, and the support fitting 35 and the base end portion of the support member 36 are connected by a tilt adjusting hydraulic cylinder 38 and extend in a direction perpendicular to the longitudinal direction of the support arm.
An arm 40 is fixed to one end of 39, and the base end of the arm 40 is pivotally attached to the support member 36 by a pivot 41 extending in the nozzle support member longitudinal direction. Adjustment through holes 42 are provided at intervals in the longitudinal direction of the arm.

The swinging drive device 43 composed of a hydraulic motor is provided in the support member 36.
One end of the rod 45 is pivotally attached by a pin 46 to the eccentric position of the rotating body 44 fixed to the rotary shaft of the swing drive device 43, and the other end of the rod 45 and the arm 40 are provided. A detachable pivotal fitting 47 made of a pin or a bolt is fitted over any one of the swinging angle adjusting through holes 42, and when the swinging drive device 43 is operated, the nozzle supporting member 39 is centered on the pivotal shaft 41. Is repeatedly rocked by an angle θ.

A water injection annular chamber 49 is provided on the outer periphery of the tip end side of the fiber insertion tube 48 to form a hydraulic fiber injection nozzle 50, and the plurality of fiber injection nozzles 50 are spaced in the longitudinal direction of the nozzle support member 39. Is placed in the nozzle support member 39 and fixed to the nozzle support member 39, and one end of the high-pressure water supply pipe 51 has a branch pipe 52.
An annular chamber 49 for water injection in each fiber injection nozzle 50 through
The other end of the high-pressure water supply pipe 51 is connected to
Connected to 53.

A bobbin housing case 57 is configured by fixing a plurality of bobbin supporting rods 54 and attaching a lid 56 to the case body 55, and attaching locking metal fittings (not shown) to the case body 55 and the lid 56. The case body 55 is fixed to the rear part of the swivel base 8, and the bobbins 58 around which the continuous filaments 2 made of polyester multifilaments are wound are the bobbin support rods 54.
Is installed in.

A lid 63 is attached to a case main body 62 having an end guide plate 60 having a plurality of fiber guide holes 59 and an intermediate guide plate 61 having a plurality of fiber guide holes 59, and the case main body
A metal fitting (not shown) is attached to the 62 and the lid 63 to form a fiber guide case 64, and a ceramic guide layer (not shown) is formed on the peripheral surface of the fiber guide hole 59 for the purpose of preventing cutting of the fiber. Is integrally provided, and the case body 62 of the fiber guide case 64 is provided on the side portions of the first boom component member 10 and the second boom component member 13 and on the upper portion of the case body 55 of the bobbin housing case 57. A fiber guide member 65 that is fixed and extends parallel to the nozzle support member 39 is fixed to the support member 36, and a plurality of fiber guide holes 66 are provided in the fiber guide member 65 at substantially equal intervals with the fiber injection nozzle 50. A ceramic guide layer (not shown) is integrally provided also on the peripheral surface of the fiber guide hole 66 for the purpose of preventing the fiber from being cut.

The continuous filaments 2 fed from each bobbin 58 in the bobbin housing case 57 has the fiber guide holes 59 of the end guide plate 60, the intermediate guide plate 61 and the fiber guide holes of the fiber guide member 65 in each fiber guide case 64. 66 through fiber injection nozzle
The compressor 68 is inserted into the fiber insertion tube 48 of the air conditioner 50, and is installed at the air inlet of the wind type sand pumping device 67 having a sand storage portion.
Is connected, and one end of a sand supply hose 69 is connected to the sand pressure feed port of the wind force type sand pressure feed device 67, and the other end of the hose 69 is connected to the flexible pipe 26 via a metal pipe. ing.

The compressor 68 is connected to the air inlet of the wind-powered soil conditioner pumping device 70 having a tank containing a soil conditioner composed of a mixture of sand, water retaining material and fertilizer, and the wind-type soil conditioner pumping device 70 is connected. One end of the soil improving material supply hose 71 is connected to the pressure feed port in the above, the other end of the soil improving material supply hose 71 is connected to the soil improving material spraying nozzle 72, and the nozzle 72 is fitted and fixed. The horizontal shaft 74 is fixed to the nozzle support fitting 73, and the horizontal shaft 74 is rotatably fitted into the horizontal hole of the receiving fitting 75 fixed to the side portion of the case 25. A circular arc-shaped long hole 76 having the horizontal axis 74 as a center is provided, and a bolt 77 that is inserted through the circular arc-shaped long hole 76 and the nozzle support fitting 73 supports the nozzle 72 for fixing the soil improving agent spraying nozzle 72. The bracket 73 is fixed to the bracket 75 so that the angle can be adjusted. It has been.

The high-pressure pump 53, wind-type sand pressure feeder 67, compressor 68
The wind-powered soil conditioner pumping device 70 is mounted on the swivel base 8 of the self-propelled vehicle 6, and the traveling of the self-propelled car 6, the swiveling of the swivel base 8, and the operation of each drive device are performed in the cab 9. ，
An operation panel for expanding and contracting each hydraulic cylinder and operating the high-pressure pump 53 and the compressor 68 is provided.

As the wind type sand pressure feeding device 67 and the wind type soil improvement material pressure feeding device 70 to which the compressor 68 is connected, those having the same structure as a conventionally known concrete spraying machine or mortar spraying machine are used.

In the fertilizer-containing water retention reinforcing stratum construction device shown in FIGS. 1 to 12, when the nozzle turning drive device 31 and the compressor 68 are driven and the self-propelled vehicle 6 is driven, sand is ejected from the sand injection nozzle 27. As it is jetted downward, the sand jet nozzle 27 is swirled in a conical shape, so that the sand is blown so as to move laterally while drawing a circle. When the swing drive device 43 and the high pressure pump 53 are operated,
The continuous long fibers 2 are sucked by the water flow jetted from the water jetting annular chamber 49 of the fiber jet nozzle 50 and jetted in a zigzag shape toward the sand spraying portion, and as shown in FIG. Along the line 89, a reinforcement layer 3 made of a mixture of sand 1 and continuous filaments 2 is formed.

Subsequently, a soil improving material composed of a mixture of sand, a water retaining material and a fertilizer is sprayed from the soil improving agent spraying nozzle 72 onto the reinforcing formation 3 to be mixed, whereby a fertilizer-containing water retaining reinforcing formation containing slope-reinforcing greening is formed. Is formed.

Using the apparatus shown in FIGS. 1 to 12, as shown in FIG. 14, a reinforcing base layer 3 made of a mixed material of sand and continuous filaments, which is located in front of the inclined surface 89, and the reinforcing base layer 3 are provided. When applying the fertilizer / water retaining material-containing soil layer 4 located on the front surface of the soil, spray the soil improving material so that the soil improving material composed of a mixture of sand, water retaining material and fertilizer is sprayed on the front surface of the reinforced formation. Adjust the orientation of the nozzle 72.

In the case of the above embodiment, the continuous long fibers 2 of 4 pumps are configured to be jetted toward the soil particle spraying portion, but the number of the continuous long fibers 2 may be increased or decreased.

When the greening reinforcing layer provided on the front surface of the inclined surface 89 is thin, for example, when the thickness is 250 mm or less, the first invention is carried out to provide the fertilizer-containing water retention reinforcing base layer on the front surface of the inclined surface 89. If the greening reinforcement layer provided on the front surface of the inclined surface 89 is thick,
As shown in the figure, a reinforcement layer 3 made of a mixed material of sand and continuous filaments is provided on the front surface of the inclined surface 89, and a fertilizer / water retaining material-containing soil layer 4 is provided on the front surface of the reinforcement layer 3.

In the case of carrying out the present invention, as the water retaining material, for example, peat moss, charcoal, pearlite, vermiculite, which has water retention, air permeability, water permeability due to the porosity of the material itself, or bentonite, zeolite, or oyadite. As described above, those having absorptive or substituting properties for nutrients and water by the action of abundant bases are used alone or in combination. As the fertilizer, for example, compost, fish cake, oil cake, plant ash, phosphoric acid, potassium, etc. may be used alone or in combination.

As for the mixing ratio of the water retaining material fertilizer-containing soil, for example, 3 volume% of the water retaining material and 10 volume% of the fertilizer are mixed with 100 volume% of sand. If peat moss is used alone as a water retention material, sand 10
When 15% by volume of peat moss is mixed with 0% by volume, and when peat moss and charcoal are used together as a water retaining material, 15% by volume of peat moss and 5% by volume of charcoal are mixed with 100% by volume of sand.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

A fertilizer-containing water-retaining reinforced layer for sloping reinforced greening that includes a water retaining material and fertilizer and is reinforced by continuous filaments 2 can be easily constructed, and it is necessary to provide a thick reinforced greening layer in front of the sloping surface. In some cases, sand 1 and continuous filaments 2 are continuously sprayed onto the inclined surface to form a reinforced formation 3,
Next, by forming a fertilizer / water retaining material-containing soil layer 4 composed of a mixture of sand, a water retaining material and a fertilizer on the surface of the reinforced stratum 3, the amount of the fertilizer and the water retaining material used is reduced, and the slope is economically reinforced. A water retention reinforced formation containing fertilizer for greening can be constructed. Further, by swirling the sand jet nozzle in a conical shape, the sand can be laid broadly and thinly, so that the continuous long fibers 2 can be evenly mixed into the sand.

Also, after laying sand and continuous filaments to a predetermined thickness, it is necessary to compact the surface of them, but even in this case, compaction can be performed easily by using heavy machinery because compaction is performed on a flat place. In addition, the compaction work can be performed quickly.

Further, particularly in the case of the present invention, since the continuous long fibers 2 can be supplied while being guided by the fiber guide member, the continuous long fibers 2 can be reliably supplied and guided along the boom constituent members, and further, one self-propelled vehicle 6 can be used. It is possible to continuously and easily construct a reinforced formation 3 reinforced by continuously mixing continuous long fibers 2 in sand using sand, and also a soil layer 4 containing a fertilizer / water retaining material on the surface of the reinforced formation 3. Can be easily and efficiently constructed.

[Brief description of drawings]

1 to 12 show a first example of a device that can be used when the present invention is carried out, and FIG. 1 is a partial longitudinal side view of a fertilizer-containing water retention reinforced stratum construction device, FIG. FIG. 3 is a perspective view thereof, FIG. 3 is a partially cutaway side view showing a sand spraying unit and a fiber spraying unit provided on a support arm at the tip of a bending boom, FIG. 4 is a plan view thereof, and FIG. A perspective view thereof, FIG. 6 is a partially longitudinal front view showing a swivel driving part of a sand jet nozzle, FIG. 7 is a partially longitudinal side view of a nozzle inclination adjusting device, and FIG. 8 is a fiber attached to a nozzle supporting member. FIG. 9 is a vertical side view showing the spray nozzle, FIG. 9 is a plan view thereof, and FIG. 10 is a side view showing the mounting state of the soil improving material spraying nozzle, and FIG.
The figure is a partially cutaway perspective view showing the fiber guide case open,
FIG. 12 is a partially cutaway side view showing the main body of the fiber guide case. FIG. 13 is a vertical cross-sectional view showing a state in which a fertilizer-containing water retention reinforcing stratum for reinforcing greenery on a slope is constructed along the slope. FIG. 14 is a vertical cross-sectional side view showing the constructed water retentive reinforcement formation containing fertilizer for sloping surface reinforcement greening. In the figure, 1 is sand, 2 is continuous filament, 3 is a reinforced formation,
4 is a soil layer containing fertilizer / water retentive material, 6 is a self-propelled vehicle, 21 is a bending boom, 22 is a support arm, 24 is a drive device for arm rotation,
25 is a case, 27 is a sand jet nozzle, 29 is a swivel member, 31 is a nozzle swivel drive device, 32 is a crank type drive shaft, 33 is a crank type driven shaft, 39 is a nozzle support member, 43 is a swing drive device, 49 is an annular chamber for water injection, 50 is a fiber injection nozzle, 67 is a wind type sand pumping device, 70 is a wind type soil improving material pumping device, 72 is a soil improving agent spraying nozzle, 73 is a nozzle support metal fitting, 74 is a horizontal A shaft, 77 is a bolt, and 89 is an inclined surface.

Front Page Continuation (72) Inventor Naruro Kitahara 6-3 Higashigokencho, Shinjuku-ku, Tokyo Kumagaya Gumi Togo Dormitory (56) References JP-A-55-167170 (JP, A) JP-A-56 -125534 (JP, A) JP 62-31885 (JP, B2)

Claims (2)

[Claims] 1. A sand injection nozzle 27 mounted on a self-propelled vehicle 6.
While continuously rotating the cone in a conical shape, the sand 1 is continuously sprayed on the inclined surface, and the continuous long fibers 2 are supplied and guided by the fiber guide member having the fiber guide hole provided in the boom constituent member of the self-propelled vehicle 6. In addition, the continuous long fibers 2 are jetted toward the sand spraying portion from the jet nozzle 50 attached to the oscillating nozzle support member 39 provided on the tip side of the boom component member 16 in the self-propelled vehicle 6. To form a reinforced formation 3, and a soil improvement material consisting of a mixture of sand, a water retention material and a fertilizer is sprayed onto the surface of the reinforced formation 3 from a soil improvement material spraying nozzle 72 mounted on the self-propelled vehicle 6. A method of constructing a water retention reinforced stratum containing fertilizer for slope reinforcement greening that forms a soil layer 4 containing fertilizer water retention material. 2. A sand jet nozzle 27 mounted on a self-propelled vehicle 6.
While rotating the cone in a conical shape, the sand 1 is continuously sprayed on the inclined surface, and the continuous long fiber 2 is sprayed toward the sand spraying portion from the spray nozzle 50 provided in the self-propelled vehicle 6. To form a reinforced stratum 3 and sand on the surface of the reinforced stratum 3
A water-retentive reinforced formation containing fertilizer for sloping surface reinforced greening, which sprays a mixture of water-retaining material and fertilizer to form a fertilizer-water-retaining material-containing soil layer 4.