JP6187874B2 - Material burial machine and its construction method - Google Patents

Description

  The present invention relates to organic and inorganic materials generated in the agriculture, forestry and fisheries industry, soil such as sand and volcanic ash, and materials such as gravel, A working machine that embeds materials for draining surplus water, or a material such as water retention material, and a working machine that embeds a culvert pipe or a pipe as a water supply pipe that supplies water and nutrients into the soil together with these materials And its construction method.

  In agriculture, forestry and fisheries, large amounts of organic and inorganic by-products such as straw residue and manure, agricultural products and food processing residues and sludge, bark and sawdust, fish internal organs and shells are discharged. In addition, large amounts of food residues and manure sludge are generated from urban areas. In agriculture, in order to make effective use of these materials, materials such as composting are validated to promote their use.

  On the other hand, the prices of production materials such as fertilizers are rising globally in the field of agricultural production. Therefore, for the stable supply of food, it is necessary to contribute to the improvement of agricultural productivity by making effective use of waste resources that are discharged not only in agriculture, forestry and fisheries but also in urban areas. In addition, for these material utilization methods, new improvement methods other than surface spraying have been demanded.

  Moreover, in recent agricultural problems, the occurrence of wet damage and drought, especially in the field crops due to heavy rain and dry weather due to the effects of climate change, has become apparent. For these measures, it is considered effective to use the above-mentioned various materials, culvert pipes and water supply pipes to easily improve farmland drainage and water retention.

  Conventionally, such farmland improvement techniques, in particular, farmland improvement and irrigation drainage techniques using materials, are as follows. In farmlands with low crop productivity and poor physicochemical properties, the soil is improved by spreading various materials on the surface and mixing them with the surface layer in order to improve cropland with high productivity.

  Moreover, there exists a machine (patent document 1 and patent document 2) which throws a material with high water permeability into a rectangular (cross-sectional) longitudinal groove for the lower soil of the soil having poor physical properties.

  In addition, by digging a trench to drain surplus water in the soil and burying hydrophobic materials, culvert pipes, water supply pipes that supply water and nutrients into the soil, and water retention materials in the soil, There is a construction method (Patent Document 3 and Patent Document 4) for constructing a portion having good water permeability, air permeability, water retention, and fertility as a part of inferior subsoil.

  Furthermore, a material groove that is pulled by a work vehicle to advance the soil surface, cuts and lifts the soil block to form a cavity, collects materials placed in advance on the soil surface, and drops them into the formed cavity. An embedded machine has been presented (Patent Document 5).

JP 2006-230417 A JP-A-2-211801 Japanese Patent Publication No. 2011-94448 Japanese Patent Publication No. 2010-126990 JP 2011-78332 A

However, the conventional technique has the following problems.
(1) The method of mixing the material by spraying the surface is a work performed by farmers in farming, and is widely tackled, but the effect is extremely small because it is limited to a shallow mixing layer.

(2) The method for improving the soil by introducing materials into the lower soil has the following problems.
(A) The method of embedding the material to be buried in the burial machine and dropping the material in the rectangular vertical groove requires a large traction work machine that can support both the work machine and the material. Construction and low construction efficiency and high cost (Patent Document 1 and Patent Document 2).
(B) A work machine for loading materials is required on the spot, and a large number of machines and personnel are required.

  (C) The material embedding interval is fixed (Patent Document 2), and the shape of the groove is fixed, and the increase / decrease of the material input amount cannot be adjusted (Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4). If the arrangement interval of the material input groove is fixed and the input amount is large and constant, the maintenance cost is fixed high, and it is difficult to reduce it. In addition, with regard to components such as nitrogen contained in the material, if the input amount is large, it may cause environmental pollution to public water areas such as groundwater, which may be inappropriate from the viewpoint of environmental conservation.

  (D) In these improved machines, the types of materials are limited to granular or fine objects such as rice straw and gravel so that they can be easily put into a rectangular vertical groove from the material loading section of the machine. Therefore, relatively long and large materials such as straw and crop residues could not be used as a soil conditioner embedded in a vertical groove-shaped soil.

(3) Construction methods for burying materials for draining surplus water in soil, water pipes for supplying drainage pipes and water and nutrients into soil, and water retaining materials at any depth in the soil There is a point.
(A) A plurality of processes are required for trench excavation, pipe laying, material input, and backfilling, and a plurality of machines and personnel are required.
(B) The construction depth was fixed to be shallow due to the drive limitation of the construction machine. Further, these maintenance techniques require a lot of mechanical power, personnel, preparation of materials, etc., and have been performed by public works or specialized construction contractors (Patent Document 3 and Patent Document 4).

  Further, the material groove embedding machine of Patent Document 5 has the following problems. Since the formed cavity is a slope, it cannot be ensured that various materials reliably fall to the bottom. Of materials previously arranged on the soil surface, only materials arranged on one side of the material trench embedding machine can be gathered together, and when materials are arranged forward, they are left as they are.

  In view of the above-described situation, the present invention enables farmers to work easily and quickly with only the power of a towing work vehicle such as a tractor, and can create high-productivity farmland. The purpose of this is to provide a material burial machine that can utilize various kinds of materials, a material and pipe burial machine, and a construction method thereof. Moreover, it aims at being able to set freely the usage-amount of material, the space | interval and depth embedded in groove shape, and the presence or absence of the embedment of a pipe | tube.

  In order to solve the above problems, the present invention provides the following configurations. Numbers in parentheses are reference numerals in the drawings described later, and are attached for reference.

In the first aspect of the material embedding work machine of the present invention, the soil block of a predetermined cross section is cut and lifted in the soil to perform the operation of burying the material in the soil while being pulled and progressing on the soil surface. A soil block lifting part (20) that forms a predetermined cavity and a material input part that inputs a material into the formed cavity, and after the material is charged, the lifted soil block falls to fill the cavity The material construction work machine (1)
(A) The soil block lifting part (20)
(A1) A vertical cutting blade (20C) and an inclined side surface for cutting out a vertical side surface of the soil block (31) so as to cut a trapezoidal cross-section soil block (31) having a vertical leg and an inclined leg longer than the lower base A pair of cutting blades (20B, 20C) consisting of an inclined cutting blade (20B) for cutting out
(A2) A fixed-width plate member having a horizontal front end portion connecting the lower ends of the pair of cutting blades (20B, 20C), an inclined portion having an upward inclination to the rear, and a horizontal rear end portion A soil block lifting plate in which an edge of the inclined portion on the inclined cutting blade (20B) side extends to a predetermined height along a virtual extension surface to the rear of the inclined cutting blade (20B). (20E)
(A3) A side plate that extends rearward of the vertical cutting blade (20C) and stands in a vertical direction from an edge of the soil block lifting plate (20E) on the vertical cutting blade (20C) side. (20D)
(A4) When the cut soil block (31) is lifted along the inclined side surface by the soil block lifting plate (20E) and the side surface holding plate (20D), the side surface holding plate ( 20D) a lateral cavity on the outer surface side (A) and a bottom cavity (B) on the lower surface side of the soil block lifting plate (20E) are formed with a cross-sectional L-shaped cavity (C),
(B) The material input unit
(B1) From the soil block lifting part (20), the materials (50a) arranged in advance on the soil surface in front of the soil block lifting part (20) are gathered outside the vertical cutting blade (20C). The material collector (11) attached to the front,
(B2) Collecting together the material (50b) preliminarily disposed on the soil surface outside the vertical cutting blade (20C) and the material (50a) gathered together by the material collector (11) A material collecting and charging device (21) attached to the side of the soil block lifting part (20) to be charged into (C) is provided.

The second aspect of the material embedding work machine according to the present invention is to remove soil by cutting and lifting a soil block of a predetermined cross section in order to perform work of burying materials and pipes in the soil while being pulled and progressing on the soil surface. A soil block lifting part (20) for forming a predetermined cavity therein, a pipe laying part for laying a pipe in the formed cavity, and a material input part for charging the material into the formed cavity. A material-embedding work machine (2) configured to fill the cavity by dropping a lifted soil block after charging,
(A) The soil block lifting part (20)
(A1) A vertical cutting blade (20C) and an inclined side surface for cutting out a vertical side surface of the soil block (31) so as to cut a trapezoidal cross-section soil block (31) having a vertical leg and an inclined leg longer than the lower base A pair of cutting blades (20B, 20C) consisting of an inclined cutting blade (20B) for cutting out
(A2) A fixed-width plate member having a horizontal front end portion connecting the lower ends of the pair of cutting blades (20B, 20C), an inclined portion having an upward inclination to the rear, and a horizontal rear end portion The edge of the inclined portion on the inclined cutting blade (20B) side extends to a predetermined height along a virtual extension surface to the rear of the inclined cutting blade (20B). (20E)
(A3) A wall-shaped plate member extending rearward of the vertical cutting blade (20C), and stands in a vertical direction from an edge of the soil block lifting plate (20E) on the vertical cutting blade (20C) side. A side holding plate (20D),
(A4) When the cut soil block (31) is lifted along the inclined side surface by the soil block lifting plate (20E) and the side surface holding plate (20D), the side surface holding plate ( 20D) a lateral cavity on the outer surface side (A) and a bottom cavity (B) on the lower surface side of the soil block lifting plate (20E) are formed with a cross-sectional L-shaped cavity (C),
(B) The pipe laying portion is
(B1) a tube reel (60) attached above the soil block lifting part (20) to wind a long tube;
(B2) The vertical cutting blade for guiding the pipe (61) pulled out from the pipe reel (60) so as to be laid at the lowest part of the side cavity (A) before the material is charged. A pipe guide (25G) attached to the rear of (20C),
(C) The material input unit
(C1) From the soil block lifting part (20), the materials (50a) previously arranged on the soil surface in front of the soil block lifting part (20) are gathered outside the vertical cutting blade (20C). The material collector (11) attached to the front,
(C2) Collecting together the material (50b) preliminarily arranged on the soil surface outside the vertical cutting blade (20C) and the material (50a) gathered together by the material collector (11) A material collecting and charging device (21) attached to the side of the soil block lifting part (20) to be charged into (C) is provided.

In the above aspect, the soil block lifting portion (20)
(A5) A cavity limiting plate that hangs down in a wall shape from the lower surface of the soil block lifting plate (20E) to block the side cavity (A) and the bottom cavity (B) in the formed cavity (C) (20F) is further provided.

In the above aspect, the material collecting input device is an auger type material collecting input device arranged so that the circular auger is in contact with the soil surface, and the edge of the circular auger is formed with concave notches at regular intervals. It is characterized by.

  The said aspect WHEREIN: In order to adjust the cutting depth of the said soil block (31), the means for adjusting the position of the vertical direction of the said soil block lifting part in the said burial work machines, etc. was provided.

  In the above aspect, in order to adjust the thickness of the materials to be collected, the material collecting device and the material collecting input device in the material burying work machine, the means for adjusting the position in the vertical direction, characterized by comprising To do.

The first aspect of the material embedding construction method of the present invention is a material embedding in which material burying grooves formed by bringing together the materials arranged on the soil surface and throwing them into the soil are formed within a predetermined range at regular intervals. It is a construction method, and as a process of forming one material buried groove,
(A) Cutting a trapezoidal soil block having an upper base longer than the lower base and having a vertical leg and an inclined leg, and lifting the cut soil block along the inclined side surface of the soil block, A first step of forming an L-shaped cavity having a side cavity outside the vertical side surface and a bottom cavity below the soil block, and holding the cavity formed for a predetermined time;
(B) After gathering a part of the material arranged on the soil surface ahead of the cavity outside the cavity, the gathered material and the material originally arranged outside the cavity are combined to form the above A second step of gathering towards the cavity and throwing it into the cavity;
And (c) a third step of filling the cavity with the soil by dropping the soil block that has been lifted after the material is put into the cavity.

In the second aspect of the material embedding method of the present invention, the materials arranged on the soil surface are gathered together and put into the soil, and the material pipe burying grooves embedded together with the pipe are formed within a predetermined range at regular intervals. As a process of forming a material pipe buried groove,
(A) Cutting a trapezoidal soil block having an upper base longer than the lower base and having a vertical leg and an inclined leg, and lifting the cut soil block along the inclined side surface of the soil block, A first step of forming an L-shaped cavity having a side cavity outside the vertical side surface and a bottom cavity below the soil block, and holding the cavity formed for a predetermined time;
(B) a second step of laying a pipe at the bottom of the side cavity in the cavity;
(C) After gathering a part of the material arranged on the soil surface ahead of the cavity outside the cavity, the gathered material and the material originally arranged outside the cavity are combined to form the above A third step of gathering towards the cavity and throwing it into the cavity;
(D) The fourth step is to backfill the soil into the cavity by dropping the soil block that has been lifted after the material is put into the cavity.

  In the above aspect, the method includes a step of disposing a partition wall that blocks the side cavity and the bottom cavity in the formed cavity, and the material is charged only into the side cavity in the cavity.

  According to a third aspect of the material embedding construction method of the present invention, a material embedding groove in which a material is embedded in soil by advancing the material embedding work machine of the first or second aspect above the soil surface ( D) or a material management groove (E) in which a material and a pipe are embedded in soil is formed.

  The material embedding work machine according to the present invention has a predetermined trapezoidal shape (the upper base is longer than the lower base) without disturbing the soil by a cutting blade with a curved wave blade considering the mechanical properties while being pulled and proceeding. Cut out a soil block with a trapezoidal cross-section with vertical and inclined legs. Subsequently, the soil block is lifted along the inclined side surface to form an L-shaped cavity composed of a side cavity and a bottom cavity. By making one of the pair of cutting blades a vertical cutting blade, a side cavity adjacent to the vertical side surface of the soil block is formed in the vertical direction. Thereby, the fall property of the material in a side cavity is securable.

  The materials are arranged in advance on the soil surface by spraying and laying. Prior to charging into the side cavity, first, the materials placed in front of the advancing work machine, etc., that are traveling, are gathered together on one side of the material, etc. All materials are gathered toward the material burial machine and dropped into the side cavity. Thereby, the material arrange | positioned ahead can be utilized without waste. The dropped material enters the side and bottom cavities. In one form of the invention, the side cavities and the bottom cavities are blocked so that only the side cavities can be filled with material.

  In one embodiment of the present invention, a material (dropping pipe / water supply pipe) is laid on the lowermost part of the side cavity, and the material can be dropped. Whether or not the pipe is laid can be easily selected depending on whether or not the pipe laying portion is mounted on the material burying work machine. After throwing the material from the side cavity, the soil block is dropped into the cavity and backfilled, so that a vertical groove-shaped material buried groove or material pipe buried groove can be constructed in the lower soil in the soil.

According to the present invention, the following effects can be obtained as compared with the soil improvement by the material input to the conventional subsoil, so that it has wide applicability.
(A) There is no need to load materials on construction machines.
(B) The interval and depth of the material burying groove or the material pipe burying groove can be arbitrarily set within a predetermined range.
(C) It is sufficient to cut only the material buried groove or the material pipe buried groove without disturbing the entire field.
(D) Since the soil block lifted to create the material burial groove or material pipe burial groove does not collapse and disturb, the lower soil does not appear on the surface. (E) There are many types of materials that can be used.
(F) Underground pipes and water supply pipes can be installed, and underdrainage and underground irrigation facilities can be constructed with a single machine.
(G) These constructions can be performed only by running a single machine.

  Due to the above effects, according to the present invention, it is possible to set the material or the embedment of the material and the pipe at an arbitrary depth and interval within a certain range, and the degree of freedom of construction / planning is high. INDUSTRIAL APPLICABILITY The present invention can realize an innovative farmland maintenance method, increase the productivity of more farmlands, and contribute to the creation of excellent farmlands.

FIG. 1 is a diagram schematically showing a left side surface of a material embedding work machine according to a first embodiment of the present invention. FIG. 2 is a diagram schematically showing a right side surface of the material embedding work machine according to the first embodiment of the present invention. FIG. 3 is a schematic perspective view of the soil block lifting part of the material embedding work machine according to the first embodiment of the present invention. FIG. 4 is a view of the soil block lifting portion of FIG. 3 as viewed from each viewpoint. FIG. 5 is a front view of a preferred example of the material collecting and charging device in the material embedding work machine according to the first embodiment of the present invention. FIG. 6 is a perspective view for explaining a work situation using the material embedding work machine according to the first embodiment of the present invention. FIGS. 7A to 7D are soil cross-sectional views illustrating a construction method using the material embedding work machine according to the first embodiment of the present invention. FIG. 8 is a plan view schematically showing the material embedding work machine according to the first embodiment of the present invention. FIG. 9 is a plan view schematically showing the steps of FIGS. 7B and 7C in the material burying construction method using the material burying work machine according to the first embodiment of the present invention. FIG. 10 is a view showing the right side surface of the material embedding work machine according to a modification of the first embodiment of the present invention. FIG. 11 is a view of the soil block lifting part in the material burying work machine according to the modified embodiment of the first embodiment of the present invention as seen from each of the six viewpoints as in FIG. 12 (a) to 12 (d) are soil cross-sectional views for explaining the material embedding method of the present invention using the material embedding work machine according to the modified embodiment of the first embodiment of the present invention. FIG. 13: is the figure which showed schematically the right side surface of the material pipe | tube embedding work machine of the 2nd Embodiment of this invention. FIG. 14 is a view of the soil block lifting part in the material pipe burying work machine according to the second embodiment of the present invention as seen from each of the six viewpoints as in FIG. FIGS. 15A to 15D are soil cross-sectional views for explaining the material pipe burying construction method of the present invention using the material pipe burying work machine of the second embodiment of the present invention. FIG. 16: is the top view which showed typically the process of FIG.15 (b) (c) in the material pipe embedding construction method using the material pipe embedding working machine of the 2nd Embodiment of this invention. FIG. 17 is a soil cross-sectional view of a field constructed by the material embedding work machine of the present invention. FIG. 18: is soil sectional drawing which shows the water supply range at the time of supplying water to a pipe | tube in the agricultural field constructed with the material pipe | tube embedding work machine of the 2nd Embodiment of this invention. FIG. 19: is sectional drawing in the soil which shows the result of the test construction of the material embedding groove | channel by the material embedding working machine of the 1st Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this specification, the names "material embedding working machine" and "material embedding construction method" are used as a general term for the working machine and construction method according to the present invention. ”And“ material burial construction method ”, and when burying materials and pipes, they may be distinguished as“ material pipe burial work machine ”and“ material pipe burial construction method ”.

  Further, a structure in the soil in which only the material is buried in a groove-shaped cavity excavated from the soil is referred to as a “material buried groove”, and a structure in the soil in which the material and the pipe are buried is referred to as a “material pipe buried groove”. The “material buried groove” functions as a water / water retention / ventilation groove having better physical and / or chemical properties than the surrounding soil. In addition, the “material pipe buried ditch” functions as an irrigation / drainage facility as a culvert or water supply that can drain and supply water to the soil through the pipe.

  As long as the “material” in the present invention can fall into a cavity formed in the soil, various materials can be used without being limited in its properties and types. In addition, the “tube” in the present invention is a tube that can be shared as a culvert tube or a water supply tube.

(1) 1st Embodiment With reference to FIGS. 1-9, the structure of the material embedding working machine 1 which concerns on the 1st Embodiment of this invention, and the construction method using this are demonstrated. The material embedding work machine 1 embeds material in soil.

  FIG. 1 is a diagram schematically showing the left side of the material embedding work machine 1 according to the present invention, and FIG. 2 is a diagram schematically showing the right side (the left and right expressions in this specification are oriented in the traveling direction indicated by the arrows). Based on when left and right). FIG. 3 is a schematic perspective view of the soil block lifting unit 20 of the material embedding work machine 1 (each arrow indicates the viewpoint of the soil block lifting unit 20 in FIG. 3). FIG. 4 is a diagram of the soil block lifting unit 20 as viewed from each viewpoint of FIG.

  The material embedding work machine 1 performs work while the wheel 10 </ b> C travels on the soil surface by being pulled. The main body of the material embedding work machine 1 is formed by assembling a steel frame material, and generally includes a front work machine mounting frame 10 and a rear work frame 20A.

<Outline of work equipment mounting frame>
The material embedding work machine 1 is connected to the rear of a towing vehicle such as a tractor (not shown) via a three-point link attachment part 10A provided on the front work machine attachment frame 10. The working height of the material embedding work machine 1 is set to be constant by the wheel 10C with height adjustment. A material collector 11 is attached to the lower part of the work machine mounting frame 10. The material collector 11 is for collecting a part of materials arranged on the soil surface, which will be described in the section <Material input unit> described later.

<Soil block lifting part>
A work frame 20 </ b> A is attached to the rear of the work machine attachment frame 10. As shown in the plan views of FIGS. 3 and 4, the work frame 20 </ b> A of this example is made of a frame member having an L shape in plan view. A soil block lifting part 20 is attached to the work frame 20A. The soil block lifting unit 20 has a function of forming a predetermined cavity in the soil by cutting and lifting a soil block having a predetermined cross section from the soil surface to a predetermined depth.

  The soil block lifting part 20 includes a pair of cutting blades composed of an inclined cutting blade 20B and a vertical cutting blade 20C, a soil block lifting plate 20E, and a side surface holding plate 20D.

  The pair of cutting blades 20B and 20C are juxtaposed with each other, and the substantial blade portions included in each of the cutting blades are directed forward and are wave-like and curved in a concave shape as a whole. In this example, an inclined cutting blade 20B is provided on the left side of the traveling direction and a vertical cutting blade 20C is provided on the right side so as to sandwich the frame material in the left-right direction of the work frame 20A. The lower ends of the inclined cutting blade 20B and the vertical 20C are connected to each other, and it is preferable that a horizontal cutting blade 20H facing forward is also provided at this connecting portion.

  The pair of cutting blades 20B and 20C are provided to cut a soil block having a predetermined cross section from the soil surface to a predetermined depth. Although it shows in detail in FIG.6 and FIG.7 mentioned later about a construction method, the cross section of the soil block cut | disconnected is trapezoid. This trapezoid has a shape in which the upper base (corresponding to the soil surface) is longer than the lower base, one leg is in the vertical direction, and the other leg is inclined. Therefore, as shown in the front view of FIG. 4, the inclined cutting blade B is inclined and the vertical cutting blade C is in the vertical direction. The distance between the inclined cutting blade 20B and the vertical cutting blade 20C is the longest at the upper end, narrows downward, and the lower end is the shortest. The lower ends of the pair of cutting blades 20B and 20C are connected by the front end portion of the soil block lifting plate 20E. As the material embedding work machine 1 proceeds, the inclined cutting blade 20B cuts out the inclined side surface of the soil block, and the vertical cutting blade 20C cuts out the vertical side surface of the soil block.

  The soil block lifting plate 20E is a plate member having a constant width, a horizontal front end portion connecting the lower ends of the pair of cutting blades 20B and 20C, and subsequently an inclined portion extending with a predetermined upward inclination to the rear. And a horizontal rear end extending rearwardly thereafter. One edge of the inclined portion (that is, the edge on the inclined cutting blade 20B side) extends to a predetermined height along a virtual extension surface to the rear of the inclined cutting blade 20B (FIG. 4 front view and back surface). (See figure). Referring to the plan view of FIG. 4, it can be seen that the inclined portion of the soil block lifting plate 20E has a predetermined inclination with respect to the traveling direction even in plan view. A rear end portion extending backward from the uppermost end of the inclined portion is parallel to the traveling direction and set to a predetermined length.

  The side surface holding plate 20D extends as a wall-shaped plate member behind the vertical cutting blade 20C. The lower end of the side surface holding plate 20D is along the other edge portion (that is, the edge portion on the vertical cutting blade 20C side) of the soil block lifting plate 20E, and the side surface holding plate 20D stands up vertically from the other edge portion. doing. Referring to the plan view of FIG. 4, it can be seen that the side surface holding plate 20D has a predetermined inclination with respect to the traveling direction in a portion along the inclined portion of the soil block lifting plate 20E in a plan view. In the portion along the rear end of the soil block lifting plate 20E, the side surface holding plate 20D extends in parallel with the traveling direction. The rear end of the side surface holding plate 20D is aligned with the rear end of the soil block lifting plate 20E.

  When the material embedding work machine 1 proceeds, the soil block is cut by the pair of cutting blades 20B and 20C, and lifted by the inclined portion of the cut soil block lifting plate 20E, and at the same time, inclined by the side support plate 20D. It is pushed to the blade 20B side. As a result, a side cavity is formed on the outer surface of the side surface holding plate 20D (the surface opposite to the inclined cutting blade 20B side), and a bottom cavity is formed on the lower surface side of the soil block lifting plate 20E. The side and bottom cavities form one connected L-shaped cavity. This will be described in detail in FIGS. 6 and 7 described later.

  In the present specification, for each of the inclined cutting blade 20B and the vertical cutting blade 20C, the surfaces facing each other are expressed as “inner surfaces”, the side having the inner surfaces is expressed as “inner”, and the opposite surfaces are referred to as “outer surfaces”. Let the side with be expressed as “outside”. As for the side surface holding plate 20D, “outside” and “inside” are expressed similarly to the vertical cutting blade 20C.

<Material input department>
The material input unit has a function of collecting materials arranged in advance on the soil surface and inputting the collected materials into the cavity formed by the soil block lifting unit 20 described above. Referring to the right side view of FIG. 2, the material input unit includes a material collector 11 attached to the work machine attachment frame 10 and a material collection input device 21 attached to the work frame 20A.

  The material collector 11 is disposed in front of the soil block lifting portion 20, that is, in front of the pair of cutting blades 20B and 20C. The material collector 11 gathers materials located on the inner side of the virtual extension line ahead of the vertical cutting blade 20 </ b> C among the materials arranged in advance on the front soil surface to the outside of the virtual extension line. For this reason, the material collector 11 includes a wall-shaped member having a surface for collecting materials. The wall-like member is installed so as to stand in the vertical direction and have a predetermined inclination with respect to the traveling direction in plan view (see FIG. 8 described later).

  The material collection input device 21 is disposed so as to protrude from the side of the soil block lifting portion 20 where the vertical cutting blade 20C is located (see FIG. 8 described later). The material collection input device 21 gathers materials located outside the virtual extension line of the vertical cutting blade 20 </ b> C toward the virtual extension line, and drops them into the cavity formed by the soil block lifting unit 20. At this time, the material outside the virtual extension line of the vertical cutting blade 20 </ b> C includes both the material originally arranged at the place and the material gathered and moved by the material collector 11.

  FIG. 5 is a front view of an example of the material collection input device 21. In this example, the material collection input device 21 is an auger type material collection input device. In the auger type material collecting and feeding device, the auger shaft is rotated by a torque of PTO (Power Take Off) driving, and the circular auger 23 brings the material arranged on the soil surface to one side. In a preferred example, concave notches 24 are formed at regular intervals on the edge of the circular auger 23. Thereby, the force which pierces with respect to the arrange | positioned material and the soil surface, and the power to cut are reinforced. As a result, the amount of materials collected can be stabilized.

  In addition, the material collector 11 can adjust the height from the soil surface by the wheel 10C with height adjustment. Moreover, the material collection input device 21 can adjust the height from the soil surface by the height adjusting sled 22. By adjusting the height from the soil surface, the amount of materials gathered can be made constant, and the amount of materials remaining on the soil surface and the unevenness of the soil surface can be handled.

<Work status and construction method of the first embodiment>
FIG. 6 is a perspective view for explaining a work situation using the material embedding work machine 1.
As the material embedding work machine 1 progresses, the inclined cutting blade 20 </ b> B and the vertical cutting blade 20 </ b> C advance to cut the soil block 31 from the soil 30. The soil block 31 has the predetermined trapezoidal cross section described above. The lower surface of the cut soil block 31 is pushed upward by the inclined portion of the soil block lifting plate 20E, and the vertical side surface thereof is pushed toward the inclined cutting blade 20B by the side surface holding plate 20D. Thereby, the soil block 31 will be lifted diagonally upward along the virtual extension surface VS to the rear of the inclined cutting blade 20B. The virtual extension surface VS coincides with the inclined side surface of the soil block 31. The height at which the soil block 31 is lifted corresponds to the height of the inclined portion of the soil block lifting plate 20E.

  As a result, in the soil, a side cavity A is formed on the outer surface side of the side surface holding plate 20D, and a bottom cavity B is formed on the lower surface side of the soil block lifting plate 20E. The lateral cavity A is formed in a longitudinal groove shape extending in the vertical direction from the soil surface. The side cavities A and the bottom cavities B are connected to form one cavity having an L-shaped cross section.

  Further, as the material embedding work machine 1 progresses, the materials previously arranged on the soil surface are gathered together with the above-described cutting of the soil block and the formation of the cavity. The material 50 is arrange | positioned previously in the whole soil surface used as object. First, the material collector 11 gathers the material 50a arranged in the forward direction outward from the virtual extension line VL forward of the vertical cutting blade 20C. Accordingly, the material 50a moves so as to be placed on the material 50b originally arranged outside the virtual extension line VL.

  Subsequently, the material collection input device 21 gathers the materials 50c existing outside the virtual extension line VL toward the virtual extension line VL (a combination of the materials 50a and 50b). Then, the collected material 50c is dropped into a side cavity A formed between the virtual extension line VL and the side surface holding plate 20D. Since the side cavity A faces in the vertical direction, the material can surely fall. The material 50c also enters the bottom cavity B connected to the side cavity A. At this time, the material 50c may not be filled in the entire cavity C including the side cavity A and the bottom cavity B. In this case, a space remains above the bottom cavity B and above the side cavity A.

  Thereafter, when the rear end of the soil block lifting plate 20E passes through the soil block 31 that has been lifted, there is no support for the lower surface, and the soil block 31 falls. As a result, the soil block 31 is backfilled, and a material burying groove D having an L-shaped cross section is formed in the ground.

  7A to 7D are soil cross-sectional views for explaining the material burying construction method of the present invention using the material burying work machine 1.

  In Fig.7 (a), before operating a material burying work machine (not shown), the material 50 is previously arrange | positioned on the surface of the soil 30 of a target range. The material is arranged with a predetermined thickness. Next, traction of the material embedding work machine is started. As shown in FIG. 7B, materials 50a within a predetermined range in the left-right direction among the materials 50 are gathered together by a material collector (not shown) and placed on the material 50b on one side. The soil block 31 is cut out by using an inclined cutting blade and a vertical cutting blade (not shown) with respect to the soil where the material 50a has been removed. Subsequently, as shown in FIG. 7C, the soil block 31 is lifted along the inclined side surface by a soil block lifting plate (not shown). As a result, a cavity C having an L-shaped cross section including a side cavity A and a bottom cavity B is formed.

  At the same time as the L-shaped cavity C is formed, a material collecting and charging device (not shown) gathers the materials 50a and 50b together as the material 50c, and drops it into the cavity C. Then, as shown in FIG.7 (d), the soil block 31 lifted is dropped and backfilled. Thus, the cavity C is held for a predetermined time. In this way, a material burying groove D having an L-shaped cross section is constructed.

  FIG. 8 is a plan view schematically showing the material embedding work machine 1, and FIG. 9 is a schematic view of the steps of FIGS. 7B and 7C in the material embedding work method using the material embedding work machine 1. It is the top view shown in.

  As shown in FIG. 8, the material embedding work machine 1 arranges the material collector 11 in front of the soil block lifting unit 20 and arranges the material collection input device 21 on the right side of the soil block lifting unit 20. The longitudinal axis of the material collector 11 extends at a predetermined acute angle on the left side with respect to the traveling direction in plan view. On the other hand, the longitudinal axis of the material collecting and feeding device 21 extends at a predetermined acute angle on the right side with respect to the traveling direction in plan view.

  As shown in FIG. 9, when the material embedding work machine 1 is moved in the traveling direction, the material 50a existing in front of the material collector 11, which is a part of the materials arranged on the soil surface, is indicated by an arrow. And put on the material 50b on the right side in the traveling direction. At the same time, the soil block lifting unit 20 cuts the soil block 31 from the soil 30 by the inclined cutting blade 20B and the vertical cutting blade 20C, and the soil block 31 along the inclined side surface by the soil block lifting plate 20E and the side surface holding plate 20D. lift. Thereby, the side cavity A is formed on the outer surface side of the side surface holding plate 20D, and the bottom cavity B is formed on the lower surface side of the soil block lifting plate 20E. They become a continuous cavity C from the soil surface.

  Subsequently, the material 50c gathered together by the material collecting and feeding device 21 (a combination of the materials 50a and 50b) is dropped from the side cavity A. The material 50 c also enters the bottom cavity B behind the side cavity A. Thereafter, the soil block 31 is dropped and backfilled to construct an L-shaped material burying groove.

(2) Modified Embodiment of First Embodiment With reference to FIGS. 10 to 12, a configuration of a material embedding work machine 1 </ b> A according to a modified embodiment of the first embodiment of the present invention and a construction method using the same will be described. . In addition, description is abbreviate | omitted about the structure which is common in the material burial work machine 1 mentioned above.

  FIG. 10 is a diagram schematically showing the right side surface of the material embedding work machine 1A. FIG. 11 is a diagram of the soil block lifting unit 20 in the material embedding work machine 1 </ b> A as seen from each viewpoint in six directions as in FIG. 4.

  As shown in FIGS. 10 and 11, the material embedding work machine 1 </ b> A is different from the material embedding work machine 1 described above in that a cavity control plate 20 </ b> F is provided in the soil block lifting unit 20. The cavity control plate 20F is attached so as to hang down like a wall from the lower surface of the soil block lifting plate 20E. As shown in the bottom view of FIG. 11, the cavity control plate 20F is disposed along one edge of the horizontal rear end of the soil block lifting plate 20E (that is, the edge on the vertical cutting blade 20C side), and the inclined portion Also, the straight line extends straight forward. The lower end of the cavity limiting plate 20F is aligned with the lower ends of the pair of cutting blades 20B and 20C.

  When the material embedding work machine 1A is advanced, a cavity C having an L-shaped cross section composed of a side cavity A and a bottom cavity B is formed in the same manner as the material embedding work machine 1 described above. The difference in the material embedding work machine 1A is that the cavity limiting plate 20F is positioned at the boundary between the side cavity A and the bottom cavity B, thereby serving as a partition wall that blocks these two cavities.

<Construction Method of Modified Embodiment of First Embodiment>
12A to 12D are soil cross-sectional views for explaining the material burying construction method of the present invention using the material burying work machine 1A.

  The gathering and gathering of the material 50a on the material 50b and the cutting of the soil block 31 in FIGS. 12 (a) and 12 (b) are the same as the steps of FIGS. 7 (a) and 7 (b) related to the material embedding work machine 1 described above. is there. Furthermore, in FIG. 12 (c), the soil block 31 is lifted along the inclined side surface, and the same is true in that a cross-sectional L-shaped cavity C composed of a side cavity A and a bottom cavity B is formed. Here, the cavity limiting plate 20F blocks the side cavity A and the bottom cavity B.

  In FIG. 12C, at the same time as the cavity C is formed, a material collecting and throwing device (not shown) gathers the materials 50a and 50b together as the material 50c, and drops it into the cavity C. At this time, the material 50c is filled only in the side cavity A and does not enter the bottom cavity B by being blocked by the cavity limiting plate 20F. Then, in FIG.12 (d), the soil block 31 lifted is dropped, and the bottom part cavity B is filled again. Also in this case, the cavity C is held for a predetermined time. In this way, a material burying groove D having a rectangular cross section is constructed.

(3) 2nd Embodiment With reference to FIGS. 13-16, the structure of the material pipe | tube embedding work machine 2 which concerns on the 2nd Embodiment of this invention, and the construction method using this are demonstrated. The material pipe embedding work machine 2 embeds the pipe in the soil in addition to the material. In addition, description is abbreviate | omitted about the structure which is common in the material burial work machine 1 and the material burial work machine 1A mentioned above.

  FIG. 13 is a diagram schematically showing the right side surface of the material pipe burying work machine 2. FIG. 14 is a view of the soil block lifting unit 20 in the material pipe burying work machine 2 as seen from the respective six viewpoints as in FIG. 4.

  As shown in FIGS. 13 and 14, the material pipe embedding work machine 2 includes a soil block lifting part 20 and a material input part similar to the material embedding work machine 1 </ b> A described above. In this example, similarly to the material embedding work machine 1 </ b> A, the cavity block limiting plate 20 </ b> F is provided in the soil block lifting unit 20. However, this is an example of the second embodiment, and it is also possible to adopt a form in which the cavity limiting plate 20F is not provided as in the material embedding work machine 1 described above.

<Pipe laying section>
The material pipe burying work machine 2 further includes a pipe laying portion. The tube laying section includes a tube reel 60 for winding a long tube, and a tube guide 20G for guiding a tube drawn from the tube reel. The tube reel 60 is attached to the work frame 20A so as to be positioned above the vertical cutting blade 20C in the soil block lifting portion 20. The axis of the tube reel 60 is perpendicular to the direction of travel. The tube 61 drawn downward from the tube reel 60 passes from the top to the bottom of the work frame 20A and exits to the outer surface side of the side surface holding plate 20D.

  The tube guide 20G is disposed between the outer surface of the side surface holding plate 20D and a virtual extension surface to the rear of the vertical cutting blade 20C (a space below the work frame 20A). The tube guide 20G is provided so as to be inclined rearward from the upper side to the lower side so as to surround the tube 61. The lower end of the tube guide 20G is aligned with the lower end of the vertical cutting blade 20C. The pipe 61 can reach the lower end of the soil block lifting part 20 by being guided by the pipe guide 20G.

<Construction method of the second embodiment>
FIGS. 15A to 15D are soil cross-sectional views for explaining the material pipe burying construction method of the present invention using the material pipe burying work machine 2.

  The gathering and gathering of the material 50a on the material 50b and the cutting of the soil block 31 in FIGS. 15 (a) and 15 (b) are the same as the steps of FIGS. 11 (a) and 11 (b) related to the material embedding work machine 1A described above. is there. Further, in FIG. 15 (c), the soil block 31 is lifted along the inclined side surface, and the cross section L-shaped cavity C including the side cavity A and the bottom cavity B is formed. Here, the cavity limiting plate 20F blocks the side cavity A and the bottom cavity B.

  In FIG. 15 (c), at the same time as the cavity C is formed, a pipe 61 supplied from a pipe reel (not shown) and passing through a pipe guide (not shown) is laid at the bottom of the side cavity A. The Immediately after laying the pipe 61, a material collecting and charging device (not shown) collects the materials 50a and 50b together as materials 50c and drops them into the cavity C. At this time, the material 50c is filled only in the side cavity A and does not enter the bottom cavity B by being blocked by the cavity limiting plate 20F. Then, in FIG.15 (d), the soil block 31 lifted is dropped, and the bottom part cavity B is also refilled. The cavity C is held for a predetermined time. Thereby, the material pipe burying groove E having a rectangular cross section is constructed.

  FIG. 16 is a plan view schematically showing the steps of FIGS. 15B and 15C in the material pipe burying construction method using the material pipe burying work machine 2.

  As shown in FIG. 16, when the material pipe embedding work machine 2 is moved in the traveling direction, the material 50a existing in front of the material collector 11 which is a part of the materials arranged on the soil surface is indicated by an arrow. And are placed on the material 50b on the right side in the traveling direction. At the same time, the soil block lifting unit 20 cuts the soil block 31 from the soil 30 with the inclined cutting blade 20B and the vertical cutting blade 20C, lifts it with the soil block lifting plate 20E, and pushes it to the left in the horizontal direction with the side surface holding plate 20D. Thereby, the side cavity A is formed on the outer surface side of the side surface holding plate 20D, and the bottom cavity B is formed on the lower surface side of the soil block lifting plate 20E. They become a continuous cavity C from the soil surface. However, the cavity C is limited to the side cavity A only by the cavity limiting plate 20F.

  As soon as the side cavity A is formed, the pipe 61 guided by the pipe guide 20G is laid at the bottom of the side cavity A. Subsequently, on the pipe 61 laid in the side cavity A, the material 50c gathered together by the material collecting and charging device 2 (a combination of the material 50a and the material 50b) is dropped. Thereafter, the material block burying groove having a rectangular cross section is constructed by dropping and backfilling the soil block 31.

(4) Description of Overall Construction FIG. 17 is a soil cross-sectional view of a field constructed by the material embedding work machine (the material embedding work machine 1, 1A or the material pipe embedding work machine 2) of the present invention. According to the material embedding work machine of the present invention, the material embedding groove D (cross-section L type or cross-sectional rectangle) or the material pipe embedding groove E to be constructed is adjusted to an arbitrary value within 60 cm in depth h1, h2. it can. This is adjusted by changing the vertical position of the soil block lifting part (20 in FIG. 1 and the like). Moreover, the cross-sectional shape of the material embedding groove | channel D and the material pipe | tube embedding groove | channel E can be changed between L shape and a rectangle by attaching or detaching a cavity limiting board (20F of FIG. 10 etc.). Moreover, it is possible to change between the material embedding groove D and the material tube embedding groove E by attaching and detaching the tube reel (60 in FIG. 13) and the tube guide (20G in FIG. 13).

  FIG. 18 is a soil cross-sectional view showing a water supply range when water is supplied to the pipe 61 in the field constructed by the material pipe burying work machine 2 shown in FIG. 13. By running the material pipe embedding work machine 2, a pipe that can be shared as a culvert pipe and a water supply pipe and a material such as an organic substance having high water permeability and high water retention capacity can be constructed at once in a vertical groove shape. The constructed material pipe burying ditch can be drained from the pipe through the material at the time of rain, and can supply water to the material and surrounding soil through the pipe at the time of drying to adjust the moisture in the soil and keep the water.

FIG. 19 is a cross-sectional view in the soil showing the result of the test construction of the material embedding groove D by the material embedding work machine 1 shown in FIG.
The test conditions are as follows.
・ Test location: Lowland soil field in Kitami, Hokkaido
・ Soil conditions: Brown lowland soil ・ Materials used: Straw 200kg / 10a
・ Construction speed: 2-4 km / h
Generally, in the processing section of the construction test, the respective materials were put together into the L-shaped material burying grooves D to form vertical grooves.

During the test of Example 1, the material burial work machine 1 is provided with a pipe reel and a pipe guide to change to the configuration of the material pipe burial work machine 2 and may be referred to as a material pipe burying groove E (hereinafter referred to as “underdrain”). Test) was conducted. The test conditions are as follows.
-Groove depth: 50cm
・ Diameter of tube: 50mm
・ Running speed: Approximately 2km / h
From the test results, it was confirmed that the culvert can be constructed. However, when the traveling speed of the material pipe burying work machine 2 exceeds 2 km / h, the supply of the pipe is slowed, so that the installed pipe is pulled up, and the pipe is lifted from the lowest part of the cavity. It was found necessary to adjust the appropriate construction speed.

[Comparative Example 1]
The soil conditions where the material embedding groove D or the material pipe embedding groove E according to the present invention is not constructed are as follows.
・ Test place: Farm field in Kitami, Hokkaido ・ Soil condition: Gray lowland soil ・ Soil cracking presence / absence: Massive soil structure with slightly extended roots but slightly low permeability ・ Slightly cracked subsoil Presence / absence: wall-like soil structure, firm plant root elongation and low water permeability.
Thus, since the soil of the subsoil is dense and hard and has no water passage, the soil is not improved naturally.

[Comparative Example 2]
When auxiliary culverts and culverts are constructed by a normal method, the construction efficiency of burying materials and pipes in the narrow groove is 140 m per hour for backhoe excavation and 240 m per hour for trencher excavation. This is extremely low at 1/10 or less compared to the construction efficiency (about 2 km / h) according to the present invention. Since the construction efficiency of the present invention is high, it is possible to cope with urgent soil improvement.

  As described above, in the material embedding groove and the material pipe embedding groove constructed according to the present invention, the material or the material and the pipe are appropriately embedded in a certain shape. Therefore, according to this invention, the same workability and improvement effect as the soil improvement of the conventional subsoil can be expected. In particular, it is possible to construct a culvert that embeds materials and pipes at the same time, and farmers can construct a culvert with their own tractor easily and at low cost without using a dedicated trencher, backhoe or specially equipped vehicle.

1, 1A Material embedding work machine 2 Material pipe embedding work machine 10 Work machine mounting frame 10A Three-point link mounting part 10B Material collector mounting part 10C Wheel 11 Material collector 20 Soil block lifting part 20A Work frame 20B Inclined cutting blade 20C Vertical Cutting blade 20D Side surface holding plate 20E Soil block lifting plate 20F Cavity limiting plate 20G Pipe guide 20H Horizontal cutting blade 21 Material collection input device 22 Height adjustment sled 23 Auger 24 Recessed notch 30 Soil 31 Soil block 50, 50a, 50b, 50c Material 60 Tube reel 61 Tube A Side cavity B Bottom cavity C L-shaped cavity D Material buried groove E Material pipe buried groove

Claims (10)

A soil block lifting part (20) that forms a predetermined cavity in the soil by cutting and lifting the soil block of a predetermined cross section in order to perform the work of burying materials in the soil while being pulled and proceeding on the soil surface; A material input unit that inputs a material into the formed cavity, and a material-embedding work machine (1) configured such that a lifted soil block falls and fills the cavity after material input, ,
(A) The soil block lifting part (20)
(A1) A vertical cutting blade (20C) and an inclined side surface for cutting out a vertical side surface of the soil block (31) so as to cut a trapezoidal cross-section soil block (31) having a vertical leg and an inclined leg longer than the lower base A pair of cutting blades (20B, 20C) consisting of an inclined cutting blade (20B) for cutting out
(A2) A fixed-width plate member having a horizontal front end portion connecting the lower ends of the pair of cutting blades (20B, 20C), an inclined portion having an upward inclination to the rear, and a horizontal rear end portion A soil block lifting plate in which an edge of the inclined portion on the inclined cutting blade (20B) side extends to a predetermined height along a virtual extension surface to the rear of the inclined cutting blade (20B). (20E)
(A3) A side plate that extends rearward of the vertical cutting blade (20C) and stands in a vertical direction from an edge of the soil block lifting plate (20E) on the vertical cutting blade (20C) side. (20D)
(A4) When the cut soil block (31) is lifted along the inclined side surface by the soil block lifting plate (20E) and the side surface holding plate (20D), the side surface holding plate ( 20D) a lateral cavity on the outer surface side (A) and a bottom cavity (B) on the lower surface side of the soil block lifting plate (20E) are formed with a cross-sectional L-shaped cavity (C),
(B) The material input unit
(B1) From the soil block lifting part (20), the materials (50a) arranged in advance on the soil surface in front of the soil block lifting part (20) are gathered outside the vertical cutting blade (20C). The material collector (11) attached to the front,
(B2) Collecting together the material (50b) preliminarily disposed on the soil surface outside the vertical cutting blade (20C) and the material (50a) gathered together by the material collector (11) (C) A material collecting and charging device (21) attached to a side of the soil block lifting portion (20) to be input to the soil block lifting unit (20). A soil block lifting part (20) that forms a predetermined cavity in the soil by cutting and lifting the soil block of a predetermined cross section in order to perform the operation of embeding materials and pipes in the soil while being pulled and progressing on the soil surface And a pipe laying section for laying a pipe in the formed cavity, and a material loading section for feeding material into the formed cavity, and after the pipe laying and material loading, the lifted soil block falls and the cavity A material construction work machine (2) configured to fill
(A) The soil block lifting part (20)
(A1) A vertical cutting blade (20C) and an inclined side surface for cutting out a vertical side surface of the soil block (31) so as to cut a trapezoidal cross-section soil block (31) having a vertical leg and an inclined leg longer than the lower base A pair of cutting blades (20B, 20C) consisting of an inclined cutting blade (20B) for cutting out
(A2) A fixed-width plate member having a horizontal front end portion connecting the lower ends of the pair of cutting blades (20B, 20C), an inclined portion having an upward inclination to the rear, and a horizontal rear end portion The edge of the inclined portion on the inclined cutting blade (20B) side extends to a predetermined height along a virtual extension surface to the rear of the inclined cutting blade (20B). (20E)
(A3) A wall-shaped plate member extending rearward of the vertical cutting blade (20C), and stands in a vertical direction from an edge of the soil block lifting plate (20E) on the vertical cutting blade (20C) side. A side holding plate (20D),
(A4) When the cut soil block (31) is lifted along the inclined side surface by the soil block lifting plate (20E) and the side surface holding plate (20D), the side surface holding plate ( 20D) a lateral cavity on the outer surface side (A) and a bottom cavity (B) on the lower surface side of the soil block lifting plate (20E) are formed with a cross-sectional L-shaped cavity (C),
(B) The pipe laying portion is
(B1) a tube reel (60) attached above the soil block lifting part (20) to wind a long tube;
(B2) The vertical cutting blade for guiding the pipe (61) pulled out from the pipe reel (60) so as to be laid at the lowest part of the side cavity (A) before the material is charged. A pipe guide (25G) attached to the rear of (20C),
(C) The material input unit
(C1) From the soil block lifting part (20), the materials (50a) previously arranged on the soil surface in front of the soil block lifting part (20) are gathered outside the vertical cutting blade (20C). The material collector (11) attached to the front,
(C2) Collecting together the material (50b) preliminarily arranged on the soil surface outside the vertical cutting blade (20C) and the material (50a) gathered together by the material collector (11) (C) A material collecting and charging device (21) attached to a side of the soil block lifting portion (20) to be input to the soil block lifting unit (20). The soil block lifting part (20)
(A5) A cavity limiting plate that hangs down in a wall shape from the lower surface of the soil block lifting plate (20E) to block the side cavity (A) and the bottom cavity (B) in the formed cavity (C) The material burial work machine according to claim 1 or 2 , further comprising (20F). The material collecting input device is an auger type material collecting input device arranged so that the circular auger is in contact with the soil surface, and the edge of the circular auger is formed with concave notches at regular intervals. The material embedding work machine according to any one of claims 1 to 3 .   5. The apparatus according to claim 1, further comprising means for adjusting a position in a vertical direction of the soil block lifting portion of the material burying work machine in order to adjust a cutting depth of the soil block (31). Material embedding work machines as described in any of the above.   2. The apparatus according to claim 1, further comprising means for adjusting a vertical position of the material collector and the material collecting input device in the material burying work machine in order to adjust the thickness of the materials to be collected. The material burial work machine according to any one of to 5. A material embedding method for forming a material embedding groove formed by putting together materials placed on the soil surface, throwing them into the soil and embedding them at a predetermined interval within a predetermined range, and forms one material embedding groove. As a process
(A) Cutting a trapezoidal soil block having an upper base longer than the lower base and having a vertical leg and an inclined leg, and lifting the cut soil block along the inclined side surface of the soil block, A first step of forming an L-shaped cavity having a side cavity outside the vertical side surface and a bottom cavity below the soil block, and holding the cavity formed for a predetermined time;
(B) After gathering a part of the material arranged on the soil surface ahead of the cavity outside the cavity, the gathered material and the material originally arranged outside the cavity are combined to form the above A second step of gathering towards the cavity and throwing it into the cavity;
And (c) a third step of filling the cavity with the soil by dropping the soil block that has been lifted after the material is put into the cavity, and a method for embedding materials and the like. A material pipe embedding method in which materials arranged on the soil surface are gathered and thrown into the soil, and a material pipe buried groove buried with the pipe is formed within a predetermined range at a constant interval. As a process of forming the buried trench,
(A) Cutting a trapezoidal soil block having an upper base longer than the lower base and having a vertical leg and an inclined leg, and lifting the cut soil block along the inclined side surface of the soil block, A first step of forming an L-shaped cavity having a side cavity outside the vertical side surface and a bottom cavity below the soil block, and holding the cavity formed for a predetermined time;
(B) a second step of laying a pipe at the bottom of the side cavity in the cavity;
(C) After gathering a part of the material arranged on the soil surface ahead of the cavity outside the cavity, the gathered material and the material originally arranged outside the cavity are combined to form the above A third step of gathering towards the cavity and throwing it into the cavity;
And (d) a fourth step of filling the cavity with the soil by dropping the soil block that has been lifted after the material is put into the cavity, and a method for embedding materials and the like. In the first step, including a step of disposing a partition wall that blocks the side cavity and the bottom cavity in the formed cavity;
9. The material embedment according to claim 7, wherein in the second step in claim 7 or the third step in claim 8, the material is introduced only into the side cavity in the cavity. Construction method.   The material embedding groove | channel (D) which embed | buried material in soil, or the material which embed | buried the material and the pipe | tube in soil by advancing the construction machine etc. of the material of Claim 1 or 2 on the soil surface Material embedding construction method characterized by forming a management installation groove (E).

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