Vertical hole drainage channel construction machine and construction method using the vertical hole drainage channel construction machine

Abstract

To construct a vertical hole drainage channel with a predetermined depth from the ground surface by performing vertical movements of excavation a plurality of times, and to provide a vertical hole drainage channel construction machine capable of measuring the properties of soil pulled up from the ground surface by an excavation part along with this construction, and a construction method using this vertical hole drainage channel construction machine.SOLUTION: A vertical hole drainage channel construction machine of the present invention is a vertical hole drainage channel construction machine that constructs a vertical hole drainage channel X of a predetermined depth from the ground surface by performing vertical movements of excavation a plurality of times, and has an excavating part 20 for excavating soil, a body frame 10 for holding the excavating part 20, and a traveling part 30 for moving the body frame 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vertical hole drainage channel construction machine for constructing a vertical hole drainage channel and a construction method using the vertical hole drainage channel construction machine. [Background technology]

[0002] Each crop has an optimal groundwater level, and open drains are constructed for surface drainage, while underdrains are constructed for underground infiltration drainage. Open drains drain excess water by creating a waterway on the surface of the field, while underground drains break up the tillage pan to drain excess water in the soil to the lower layer. Open and covered culverts require digging horizontal trenches or holes, which requires a large construction area, and the trenches and holes must be connected to allow water to flow, and they must also be sloped toward the drainage ditch. When constructing an underdrain, special machinery and equipment are required, and even when constructing an open drain, a tractor with a certain amount of horsepower is required to dig a trench of a certain depth. Patent Document 1 proposes a device for collecting soil samples for soil condition analysis. Patent Document 1 describes a soil collection unit provided at the front or rear of a self-propelled machine via a lifting mechanism. Patent Document 1 also discloses that the soil collection unit is composed of a cylinder and a screw inside the cylinder, and that the cylinder is inserted into the ground and the screw is rotated to take in soil into the cylinder, after which the soil is retained inside the cylinder. Furthermore, Patent Document 2 discloses that, in parallel with the excavation, the collected underground fluid is analyzed for contaminants and their concentrations are measured. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-124509 A [Patent Document 2] JP 2003-279452 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 and Patent Document 2 are not related to the construction of a vertical hole drainage channel in the first place. In addition, Patent Document 1 does not measure the properties of the soil pulled up from the ground surface while excavating, but collects soil samples. In addition, Patent Document 2 targets volatile pollutants such as volatile organic substances and oils as the measurement targets, and involves sucking in underground fluids such as underground air through a suction hole, analyzing the pollutants contained in the collected underground fluid, and measuring their concentrations.

[0005] The present invention aims to provide a vertical hole drainage channel construction machine that can construct a vertical hole drainage channel to a predetermined depth from the ground surface by performing up and down excavation movements in multiple steps, and that can measure the properties of the soil pulled up from the ground surface by the excavation section during this construction, and a construction method using this vertical hole drainage channel construction machine. [Means for solving the problem]

[0006] The vertical hole drainage channel construction machine of the present invention described in claim 1 is a vertical hole drainage channel construction machine that constructs a vertical hole drainage channel X to a predetermined depth from the ground surface by performing up and down movements by excavation in multiple steps, and has an excavation unit 20 that excavates soil, a main body frame 10 that holds the excavation unit 20, and a traveling unit 30 that moves the main body frame 10. The main body frame 10 is provided with a rotation prevention portion 15 for preventing the main body frame 10 from rotating during excavation. The present invention is characterized by the above. The present invention described in claim 2 is characterized in that, in the vertical hole drainage channel construction machine described in claim 1, it has a soil measuring unit 40 held on the main body frame 10, and the soil measuring unit 40 measures the properties of the soil pulled up from the ground surface by the excavation unit 20. Claim 3 The present invention as described herein is Claim 1 or claim 2 In the vertical hole drainage channel construction machine described in the above, the rotation prevention part 15 is a pile material that is driven into the soil. Claim 4The present invention is characterized in that, in the vertical hole drainage channel construction machine described in claim 2, the soil measuring unit 40 has at least one of a camera, a near-infrared sensor, an odor sensor, an electromagnetic wave sensor, an ultrasonic sensor, and a laser sensor. Claim 5 The invention as described herein comprises claims 1 to Claim 4 The vertical hole drainage channel construction machine according to any one of claims 1 to 5 is characterized by having a display unit 60 that displays the excavation position together with a map, and a position detection unit 70 that detects the current position. Claim 6 The present invention described herein is characterized in that, in the vertical hole drainage channel construction machine described in claim 2, it has a memory unit 80 that stores measurement data measured by the soil measuring unit 40, and the memory unit 80 stores the measurement data together with depth data from the ground surface for the soil pulled up from the ground surface by the excavation unit 20. Claim 7 The present invention as described herein is Claim 4 The vertical hole drainage channel construction machine described in the above is characterized in that the camera is used to photograph the color of the soil pulled up from the ground surface by the excavation section 20 and the state in which lumps of the soil crumble. Claim 8 The present invention as described herein is Claim 4 In the vertical hole drainage channel construction machine described above, the camera is used to photograph the color and clumps of the soil pulled up from the ground surface by the excavation section 20, and the ease of cultivation is judged based on the shade of the color and the size of the clumps. Claim 9 The present invention as described herein is Claim 4 In the vertical hole drainage channel construction machine described in the above, the camera is used to photograph the soil pulled up from the ground surface by the excavation section 20, and the soil moisture content and the amount of organic matter are determined based on the brightness of the color of the soil. Claim 10 The present invention as described herein is Claim 4 In the vertical hole drainage channel construction machine described in the above, the near-infrared sensor is used to measure the absorption spectrum of the soil pulled up from the ground surface by the excavation section 20, and the soil moisture content is determined based on the absorption spectrum. Claim 11The present invention as described herein is Claim 4 In the vertical hole drainage channel construction machine described in the above, the odor sensor is used to measure the odor of the soil pulled up from the ground surface by the excavation section 20, and the reduction state or microbial activity is evaluated based on the odor. Claim 12 The construction method using the vertical hole drainage channel construction machine of the present invention described above is as follows: The excavation section 20 excavates soil, a main frame 10 that holds the excavation section 20, and a running section 30 that moves the main frame 10. The excavation section 20 excavates soil, and the main frame 10 is moved up and down in multiple steps to construct a vertical hole drainage channel X at a predetermined depth from the ground surface. This is a construction method using a vertical hole drainage channel construction machine, characterized in that a rainwater accumulation area A where rainwater is likely to accumulate and a drainage area B to which the rainwater accumulated in the rainwater accumulation area A is guided are determined, and the vertical hole drainage channel X is constructed between the rainwater accumulation area A and the drainage area B. Claim 13 The present invention as described herein is Claim 12 In the construction method using the vertical hole drainage channel construction machine described in the above, the depth of the vertical hole drainage channel X is gradually increased from the rainwater accumulation area A toward the drainage area B. Claim 14 The present invention as described herein is Claim 12 or Claim 13 In the construction method using the vertical hole drainage channel construction machine described in the above, the vertical hole drainage channel X is constructed in an open channel C. Effect of the Invention

[0007] According to the vertical hole drainage channel construction machine of the present invention, a vertical hole drainage channel is constructed to a predetermined depth from the ground surface by performing up and down excavation movements in multiple steps, and the soil measuring unit held on the main body frame measures the properties of the soil pulled up from the ground surface by the excavation unit, so that the properties of the soil can be grasped according to the depth from the ground surface at the time of constructing the vertical hole drainage channel. [Brief description of the drawings]

[0008] [Figure 1] A conceptual diagram of a vertical hole drainage channel construction machine according to the first embodiment of the present invention, seen from the front. [Diagram 2] Conceptual diagram of the vertical hole drainage construction machine seen from the rear [Diagram 3] Conceptual diagram of the vertical hole drainage construction machine seen from below [Figure 4] A conceptual diagram of a vertical hole drainage channel construction machine according to a second embodiment of the present invention, seen from the front. [Diagram 5] A diagram showing a method for determining the construction location of a vertical hole drainage channel using a soil hardness map at a specified depth (12 cm) from the ground surface. [Figure 6] Diagram showing the depth of the vertical drainage channel [Figure 7] An explanatory diagram showing the construction location of the vertical hole drainage channel [Figure 8] An explanatory diagram showing the construction position of a vertical hole drainage channel different from that shown in Figure 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The vertical hole drainage channel construction machine according to the first embodiment of the present invention has an excavation unit for excavating soil, a main body frame for holding the excavation unit, and a traveling unit for moving the main body frame. The main frame is provided with a rotation prevention part that prevents the main frame from rotating during excavation. This is what we do. According to this embodiment, by performing the up and down excavation movement in multiple steps, a vertical hole drainage channel can be constructed to a predetermined depth from the ground surface.

[0010] The second embodiment of the present invention is a vertical hole drainage channel construction machine according to the first embodiment, which has a soil measuring unit held on the main body frame, and the soil measuring unit measures the properties of the soil pulled up from the ground surface by the excavation unit. According to this embodiment, in a vertical hole drainage channel construction machine that constructs a vertical hole drainage channel to a predetermined depth from the ground surface by performing up and down excavation movements in multiple stages, the soil measuring unit held on the main body frame measures the properties of the soil pulled up from the ground surface by the excavation unit, so that the properties of the soil can be grasped by depth from the ground surface at the time of constructing the vertical hole drainage channel. Furthermore, since the main body frame has a rotation prevention portion that can prevent the main body frame from rotating during excavation, excavation can be performed even with a lightweight manual main body frame, for example.

[0011] The present invention Third The embodiment of the present invention is 1st or 2nd In the embodiment of the vertical hole drainage channel construction machine, the rotation prevention portion is a pile material that is driven into the soil. According to this embodiment, excavation can be performed even in a narrow space while preventing the main body frame from rotating.

[0012] The present invention Fourth In this embodiment, in the vertical hole drainage channel construction machine according to the second embodiment, the soil measurement unit has at least one of a camera, a near-infrared sensor, an odor sensor, an electromagnetic wave sensor, an ultrasonic sensor, and a laser sensor. According to this embodiment, soil measurement can be performed by having at least one of a camera, a near-infrared sensor, an odor sensor, an electromagnetic wave sensor, an ultrasonic sensor, and a laser sensor.

[0013] The present invention Fifth The embodiment of the present invention is as follows: Fourth In the vertical hole drainage channel construction machine according to any one of the above embodiments, the machine has a display unit that displays an excavation position together with a map, and a position detection unit that detects a current position. According to this embodiment, the excavation position can be confirmed on the display unit, thereby improving construction efficiency.

[0014] The present invention Sixth In this embodiment, in the vertical hole drainage channel construction machine of the second embodiment, a memory unit is provided for storing measurement data measured by the soil measuring unit, and the memory unit stores the measurement data together with depth data from the ground surface for soil pulled up from the ground surface by the excavation unit. According to this embodiment, by storing measurement data according to depth from the ground surface, it is possible to determine the position of the tillage pan layer and the groundwater level, drainage based on the distance from the tillage pan layer and the groundwater level, and the suitability of the soil for cultivation.

[0015] The present invention Seventh The embodiment of the present invention is Fourth In the embodiment of the vertical hole drainage channel construction machine, a camera is used to photograph the color of the soil pulled up from the ground surface by the excavation section and the state in which the lumps crumble. According to this embodiment, the properties of the soil can be determined from the color of the soil and the way the lumps crumble.

[0016] The present invention Eighth The embodiment of the present invention is Fourth In the embodiment of the vertical hole drainage channel construction machine, a camera is used to photograph the color and clumps of soil pulled up from the ground surface by the excavation section, and the ease of cultivation is determined based on the shade of color and the size of the clumps. According to this embodiment, the moisture content of the soil can be estimated based on the shade of soil color and the size of the clumps, and the ease of cultivation can be determined.

[0017] The present invention 9th The embodiment of the present invention is Fourth In the embodiment of the vertical hole drainage channel construction machine, a camera is used to photograph the soil pulled up from the ground surface by the excavation section, and the soil moisture content and amount of organic matter are determined based on the brightness of the soil's color. According to this embodiment, if the soil moisture is high, it appears dark, and if the soil moisture is low, it appears light. Therefore, the soil moisture content and the amount of organic matter can be determined from the brightness of the soil color.

[0018] The present invention 10th The embodiment of the present invention is Fourth In the vertical hole drainage channel construction machine according to the embodiment, a near-infrared sensor is used to measure the absorption spectrum of the soil pulled up from the ground surface by the excavation section, and the soil moisture content is determined from the absorption spectrum. According to this embodiment, the soil moisture content can be determined quantitatively by the absorption spectrum.

[0019] The present invention 11th The embodiment of the present invention is Fourth In the embodiment of the vertical hole drainage channel construction machine, an odor sensor is used to measure the odor of the soil pulled up from the ground surface by the excavation section, and the reduction state or microbial activity is evaluated based on the odor. According to this embodiment, the reduction state or microbial activity can be evaluated based on the odor of the soil.

[0020] The present invention 12thThe construction method using the vertical hole drainage construction machine according to the embodiment is as follows: ,rain A rainwater collection area where water is likely to accumulate and a drainage area to which the rainwater that accumulates in the rainwater collection area is directed are determined, and a vertical hole drain is constructed between the rainwater collection area and the drainage area. According to this embodiment, the construction burden is smaller than that of constructing an underdrain or an open drain.

[0021] The present invention 13th The embodiment of the present invention is 12th In the construction method using the vertical hole drainage channel construction machine according to the embodiment, the depth of the vertical hole drainage channel is gradually increased from the rainwater accumulation area toward the drainage area. According to this embodiment, the permeating water can be effectively guided.

[0022] The present invention 14th The embodiment of the present invention is 12th or 13th In the construction method using the tunnel drainage channel construction machine according to the embodiment, a tunnel drainage channel is constructed as an open channel. According to this embodiment, by constructing an open channel, the vertical hole drainage channel can be made shallow. EXAMPLES

[0023] A vertical hole drainage channel construction machine according to a first embodiment of the present invention will now be described. FIG. 1 is a conceptual diagram of the vertical hole drainage channel construction machine according to this embodiment as seen from the front, FIG. 2 is a conceptual diagram of the vertical hole drainage channel construction machine as seen from the rear, and FIG. 3 is a conceptual diagram of the vertical hole drainage channel construction machine as seen from below.

[0024] The vertical hole drainage channel construction machine of this embodiment has a main frame 10, which holds an excavation section 20 that excavates the soil, a running section 30 that moves the main frame 10, a soil measuring section 40 that measures the properties of the soil pulled up from the ground surface by the excavation section 20, and a rotation prevention section 15 that prevents the main frame 10 from rotating during excavation.

[0025] The drilling section 20 has a drilling drill 21, a motor 22 for rotating the drilling drill 21, a slide rail 23 for sliding the drilling drill 21 up and down, a handle 24 for pushing down or pulling up the drilling drill 21, and a spring 25 for suspending the drilling drill 21. In this embodiment, the traveling unit 30 is configured with tires on four wheels, but it may be configured with tires on six or eight wheels, or may be configured with crawlers.

[0026] The soil measuring section 40 has at least one of a camera, a near-infrared sensor, an odor sensor, an electromagnetic wave sensor, an ultrasonic sensor, and a laser sensor. When the soil measuring unit 40 has a camera, the camera is used to photograph the color of the soil pulled up from the ground surface by the excavation unit 20 and the state in which the lumps crumble. The soil properties can be determined from the color of the soil and the state in which the lumps crumble. The camera is also used to photograph the color and lumps of the soil pulled up from the ground surface by the excavation unit 20, and the ease of cultivation is determined based on the shade of the color and the size of the lumps. The moisture content of the soil can be estimated based on the brightness of the color and the size of the soil lumps, and the ease of cultivation can be determined. The camera is also used to photograph the soil pulled up from the ground surface by the excavation unit 20, and the soil moisture content and the amount of organic matter are determined based on the brightness of the soil color. If the soil moisture is high, it will be dark, and if the soil moisture is low, it will be whitish, so the soil moisture content and the amount of organic matter can be determined based on the brightness of the soil color. When the soil measuring unit 40 has a near-infrared sensor, the near-infrared sensor is used to measure the absorption spectrum of the soil pulled up from the ground surface by the excavation unit 20, and the soil moisture content is determined from the absorption spectrum. Determining the soil moisture content from the absorption spectrum enables quantitative measurement. When the soil measuring unit 40 has an odor sensor, the odor sensor is used to measure the odor of the soil pulled up from the ground surface by the excavation unit 20, and the reduction state or microbial activity evaluation is performed based on the odor. The reduction state or microbial activity evaluation can be performed based on the odor of the soil. When the soil measuring section 40 has an electromagnetic wave sensor or an ultrasonic sensor, it is possible to detect soil moisture, and when the soil measuring section 40 has a laser sensor, it is possible to grasp the shape of the soil mass. In this way, the soil measuring unit 40 can perform soil measurement by having at least one of a camera, a near-infrared sensor, an odor sensor, an electromagnetic wave sensor, an ultrasonic sensor, and a laser sensor.

[0027] The rotation prevention portion 15 is a pile material that is driven into the soil, and preferably a pair of pile materials are arranged with the main body frame 10 in between. Since the main body frame 10 has a rotation prevention unit 15 that can prevent the main body frame 10 from rotating during excavation, excavation can be performed even with a lightweight manual main body frame 10. By using the rotation prevention unit 15 as a pile material, excavation can be performed even in narrow spaces by preventing the main body frame 10 from rotating. Note that the rotation prevention unit 15 may not be necessary if the vertical hole drainage channel construction machine is heavy enough that it does not rotate while excavating a vertical hole.

[0028] The vertical hole drainage channel construction machine of this embodiment further includes a depth measurement unit 50, a display unit 60 that displays the excavation position together with a map, a position detection unit 70 that detects the current position, a memory unit 80 that stores the measurement data measured by the soil measurement unit 40, and a battery 90.

[0029] In this embodiment, a scale placed on the main frame 10 is shown as the depth measuring unit 50, but it is preferable that the depth measuring unit 50 be a sensor that detects the depth of the pulled-up soil from the ground surface based on the position or movement of the drilling drill 21 or the handle 24, or the rotation speed of the motor 22. A mobile terminal equipped with wireless communication capabilities is suitable for the display unit 60, and a GNSS receiver is suitable for the position detection unit 70, but the mobile terminal functioning as the display unit 60 may also be equipped with a current position detection capability. The memory unit 80 stores data on the depth from the ground surface of the soil pulled up from the ground surface by the excavation unit 20 as well as measurement data by the soil measurement unit 40 . In this way, by detecting the current position and displaying the excavation position, construction efficiency can be improved by being able to confirm the excavation position. In addition, by storing measurement data by depth from the ground surface, it is possible to determine the position of the tillage pan and groundwater level, drainage based on the distance from the tillage pan and groundwater level, and suitability of the soil for cultivation. The battery 90 supplies power to the excavation unit 20, the soil measuring unit 40, the display unit 60, the position detection unit 70, and the memory unit 80. It is preferable that the traveling unit 30 is also driven by the battery 90.

[0030] FIG. 4 is a conceptual diagram showing a tunnel drainage channel construction machine according to a second embodiment of the present invention, seen from the front. In the second embodiment, the handle 24 is a hand-operated handle. The other configurations are the same as those of the first embodiment. As shown in the second embodiment, the drill bit 21 may be pushed down or pulled up by a hand-operated handle 24 .

[0031] A construction method using the vertical hole drainage channel construction machine according to the second embodiment will be described with reference to Figs.

[0032] Figure 5 shows a method for determining the construction location of a vertical hole drainage channel using a soil hardness map at a specified depth (12 cm) from the ground surface. In FIG. 5, the soil hardness map is shown as a soil hardness contour map, and from such a soil hardness map, a rainwater accumulation area A where rainwater is likely to accumulate can be determined. Drainage area B is an area that directs the rainwater collected in rainwater collection area A, and is determined to be an area with an open drain, an underdrain, or a drainage channel, or an area around the perimeter of a field. The vertical hole drainage channel X is constructed between the rainwater collection area A and the drainage area B.

[0033] FIG. 6 is an explanatory diagram showing the depth of the vertical hole drainage channel. The vertical hole drainage channel X is preferably deep enough to reach the tilled pan layer, and further, is preferably deep enough to exceed the tilled pan layer, and it is preferable to gradually deepen the depth of the vertical hole drainage channel X from the rainwater accumulation area A to the drainage area B. In this way, by gradually deepening the depth of the vertical hole drainage channel X from the rainwater accumulation area A to the drainage area B, the infiltrating water can be effectively guided.

[0034] FIG. 7 is an explanatory diagram showing the construction position of the vertical hole drainage channel, where FIG. 7(a) is a top view and FIG. 7(b) is a cross-sectional view at the open channel position in FIG. 7(a). As shown in Fig. 7(a), the depth of the vertical hole drainage channel X can be made shallow by constructing the vertical hole drainage channel X along the open channel C. In addition, even when constructing the vertical hole drainage channel X along the open channel C, it is preferable to gradually deepen the depth of the vertical hole drainage channel X in the direction in which the seepage water is guided, as shown in Fig. 7(b).

[0035] FIG. 8 is an explanatory diagram showing the construction position of a vertical hole drainage channel different from that in FIG. 7, where FIG. 8(a) is a top view and FIG. 8(b) is a cross-sectional view at the open channel position in FIG. 8(a). As shown in Fig. 8(a), the vertical hole drainage channel X may be constructed without following the open channel C. In this case, the vertical hole drainage channel X constructed in the open channel C can be shallow, as shown in Fig. 7(b). Even when constructing the vertical hole drainage channel X without following the open channel C, it is preferable to gradually deepen the depth of the vertical hole drainage channel X in the direction in which the seepage water is guided. The vertical hole drainage channel X has a hole diameter of 4 cm to 30 cm, preferably 20 cm or less so as not to impede vehicle travel, a depth of about 60 cm, and is excavated in 10 cm to 20 cm increments in three to six steps.

[0036] The vertical hole drainage channel construction machine of this embodiment is a vertical hole drainage channel construction machine that constructs a vertical hole drainage channel to a predetermined depth from the ground surface by performing up and down movements by excavation in multiple steps, and the soil measuring unit 40 held on the main body frame 10 measures the properties of the soil pulled up from the ground surface by the excavation unit 20, so that the properties of the soil can be grasped according to the depth from the ground surface at the time of constructing the vertical hole drainage channel X. In addition, the construction method using the vertical hole drainage channel construction machine of this embodiment determines a rainwater collection area where rainwater is likely to accumulate and a drainage area to which the rainwater that accumulates in the rainwater collection area is guided, and constructs a vertical hole drainage channel between the rainwater collection area and the drainage area, so the construction burden is smaller than that of the conventional method of constructing culverts or open channels. The traveling unit 30 may be self-propelled by an engine or an electric motor. [Industrial Applicability]

[0037] The tunnel drainage channel construction machine according to the present invention is particularly suitable for constructing a tunnel drainage channel in a farm field. [Explanation of symbols]

[0038] 10 Main frame 15 Rotation prevention section 20 Excavation Section 21 Drill 22 Motor 23 Slide rail 24 Handle 25 Spring 30 Running part 40 Soil Measurement Section 50 Depth measurement section 60 Display 70 Position detection unit 80 Storage section 90 Battery A Rainwater accumulation area B Drainage area C clear channel X Pit Drain

Claims

1. A vertical hole drainage channel construction machine that constructs a vertical hole drainage channel to a predetermined depth from the ground surface by performing up and down movements by excavation in multiple steps, An excavation unit that excavates soil; A main body frame that holds the excavation unit; a running unit that moves the main body frame; having The main body frame has a rotation prevention portion that prevents the main body frame from rotating during excavation. A vertical hole drainage construction machine characterized by the above features.

2. A soil measuring unit is held by the main body frame, The soil measuring unit measures the properties of the soil pulled up from the ground surface by the excavation unit.

2. The vertical hole drainage channel construction machine according to claim 1 .

3. The rotation preventing portion is used as a pile material that is driven into the soil.

3. The vertical hole drainage channel construction machine according to claim 1 or 2.

4. The soil measuring unit has at least one of a camera, a near-infrared sensor, an odor sensor, an electromagnetic wave sensor, an ultrasonic sensor, and a laser sensor.

3. The vertical hole drainage channel construction machine according to claim 2.

5. A display unit that displays the drilling position together with a map; a location detector for detecting a current location; have The vertical hole drainage channel construction machine according to any one of claims 1 to 4.

6. A storage unit for storing measurement data measured by the soil measurement unit, The storage unit stores the measurement data together with depth data from the ground surface for the soil pulled up from the ground surface by the excavation unit.

3. The vertical hole drainage channel construction machine according to claim 2.

7. The camera is used to photograph the color of the soil raised from the ground surface by the excavation unit and the state in which the soil clumps crumble.

5. The vertical hole drainage channel construction machine according to claim 4.

8. The camera is used to photograph the color and masses of the soil pulled up from the ground surface by the excavation unit, and the ease of cultivation is judged based on the shade of the color and the size of the masses.

5. The vertical hole drainage channel construction machine according to claim 4.

9. The camera is used to photograph the soil pulled up from the ground surface by the excavation unit, and the soil moisture content and the amount of organic matter are determined based on the brightness of the color of the soil.

5. The vertical hole drainage channel construction machine according to claim 4.

10. The near-infrared sensor is used to measure an absorption spectrum of the soil pulled up from the ground surface by the excavation section, and the soil moisture content is determined based on the absorption spectrum.

5. The vertical hole drainage channel construction machine according to claim 4.

11. Using the odor sensor, the odor of the soil pulled up from the ground surface by the excavation unit is measured, and the reduction state or microbial activity is evaluated based on the odor.

5. The vertical hole drainage channel construction machine according to claim 4.

12. A vertical hole drainage channel construction machine that constructs a vertical hole drainage channel to a predetermined depth from the ground surface by performing up and down movements by excavation in multiple steps, An excavation unit that excavates soil; A main body frame that holds the excavation unit; a running unit that moves the main body frame; A construction method using a vertical hole drainage channel construction machine having A rainwater accumulation area in which rainwater is likely to accumulate and a drainage area to which the rainwater accumulated in the rainwater accumulation area is guided are determined; The vertical hole drain is constructed between the rainwater accumulation area and the drainage area. A construction method using a vertical hole drainage channel construction machine characterized by the above.

13. The depth of the vertical hole drainage channel is gradually increased from the rainwater accumulation area toward the drainage area. A construction method using the vertical hole drainage channel construction machine according to claim 12.

14. The vertical hole drainage channel is constructed as an open channel. A construction method using the vertical hole drainage channel construction machine according to claim 12 or 13.

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