JP7004149B2 - Soil quality adjustment device and quality adjustment method - Google Patents

Description

The present invention relates to a soil quality adjusting device and a quality adjusting method for adjusting soil quality.

In construction work and civil engineering work, the soil generated by excavating the ground at the construction site may be used as a construction material (see Non-Patent Document 1).
A technique for adjusting the water content ratio of the soil quality of such generated soil is being studied (see Patent Document 1). In the technique described in this document, a fine-grained material and a coarse-grained material are mixed by a mixer, sent to an aeration rotary kiln of a parallel flow aeration method via a charging conveyor to aerate, and then a water content ratio adjuster. While adding water to the core material, the mixture is stirred and mixed by the water supply means provided in. Further, the water supply amount is controlled by the water supply amount control device based on the water content ratio of the core raw material before aeration measured by the water content ratio measuring device provided in the charging conveyor.

Further, a technique for producing a water content-adjusted soil by adjusting the water content of the raw material soil is also being studied (see Patent Document 2). In the technique described in this document, the raw material earth and sand are conveyed by the loading device, supplied to the charging port of the processing container, and charged into the storage space from the charging port. In the storage space, a plurality of paddle mixers are rotationally driven, and the earth and sand are agitated by these paddle mixers and transferred from the input port side to the discharge port side. At this time, the compressed air is continuously injected by the air injection device onto the earth and sand being agitated in the storage space of the processing container. Soil with a high water content at the beginning, which was initially charged from the inlet of the treatment container, is discharged as treated sediment after the water content is reduced before it passes through the treatment container and is discharged from the discharge port. It is discharged from the outlet.

Furthermore, the applicant is also studying a soil quality sorting device for efficiently and accurately classifying the soil used for a predetermined purpose of use (see Patent Document 3). In the technique described in this document, the soil classification device includes a moisture meter that calculates the water content ratio of the transported soil transported on a belt conveyor, a laser scanner that calculates the cross-sectional area (shape) of the transported soil, and transport. Equipped with a belt scale to get the weight of the soil. Then, it is provided with a control device that calculates the dry density based on the cross-sectional area, the weight and the water content ratio, and determines the soil quality of the transported soil based on the cross-sectional area and the dry density.

Japanese Unexamined Patent Publication No. 2005-171725 Japanese Unexamined Patent Publication No. 2013-104248 Japanese Unexamined Patent Publication No. 2017-181289

Ministry of Land, Infrastructure, Transport and Tourism, "Standards for using generated soil", [online], [Search on February 29, 2016], Internet, <URL: http://www.mlit.go.jp/sogoseisaku/region/recycle/ pdf / recyclehou / manual / 180810hassei.pdf ＞

By the way, the generated soil classified according to the soil quality includes those that are difficult to use as they are. However, when adjusting the soil quality of this generated soil, equipment for adjustment is required, and it takes time and effort for adjustment.

The soil quality adjusting device for solving the above problems includes a measuring unit for measuring the soil quality evaluation value and weight of the transported soil on the transport device, and a control unit for controlling the transport device. Then, the control unit measures the first soil quality evaluation value and the first weight of the first transported soil belonging to the first group by the measuring unit, and the second soil quality of the second transported soil belonging to the second group is measured by the measuring unit. The evaluation value and the second weight are measured, and the first soil evaluation value and the first weight of the first transport soil, and the second soil evaluation value and the second weight of the second transport soil are mixed to form the third transport soil. The transport of the first transport soil and the second transport soil by the transport device is controlled so that the soil quality evaluation value becomes the soil quality target value.

According to the present invention, the soil quality can be efficiently adjusted.

The whole schematic diagram of the soil quality adjustment apparatus of 1st Embodiment. Explanatory drawing of the outline of the quality adjustment of the soil quality of 1st Embodiment. Explanatory drawing of the processing procedure of 1st Embodiment. Explanatory drawing of the processing procedure of 2nd Embodiment. Explanatory drawing of the relationship between the water content ratio and the fine particle content.

(First Embodiment)
Hereinafter, the first embodiment of the soil quality adjusting device will be described with reference to FIGS. 1 to 3. In the present embodiment, the water content ratio and weight of a plurality of sections of soil transported on a belt conveyor are continuously measured, and the obtained measurement results are combined to adjust the quality of the soil. In the first embodiment, the first transported soil and the second transported soil having different soil qualities are transported at different timings to perform quality adjustment.

As shown in FIG. 1, the quality adjusting device Q1 includes a first transport system 10, a second transport system 20, and a mixing system 30.
The first transport system 10 includes a hopper H1 as a supply source of transport soil, a belt conveyor B1, a water content ratio measuring device 11, and a belt scale 12. Then, while the soil SG1 supplied from the hopper H1 is conveyed by the belt conveyor B1, the total amount is continuously measured by the water content ratio measuring device 11 and the belt scale 12.

The second transport system 20 includes a hopper H2, a belt conveyor B2, a water content ratio measuring device 21, and a belt scale 22 as a source of transport soil. Then, while the soil SG2 supplied from the hopper H2 is conveyed by the belt conveyor B2, the total amount is continuously measured by the water content ratio measuring device 21 and the belt scale 22.

The mixing system 30 includes belt conveyors B3 and B4, a mixer M1, and a water content ratio measuring device 31. The belt conveyor B3 conveys the soil SG1 and SG2 conveyed by the belt conveyors B1 and B2 to the mixer M1, respectively. In the mixer M1, the soil SG1 and SG2 are mixed and stirred to become soil SG3. Then, while the soil SG3 is conveyed by the belt conveyor B4, the water content ratio is continuously measured by the water content ratio measuring device 31.

The outline of soil quality adjustment will be described with reference to FIG.
First, the soil quality is discriminated by using the technique described in Patent Document 3 (step S01). In this case, the soil is classified into four types, groups A to D.

Group A has a water content ratio (0 to 14%) and a fine particle content (0 to 15%), and corresponds to the first-class construction-generated soil in terms of soil quality classification. This Group A can be applied to construction materials as it is.

Group B has a water content ratio (14 to 40%) and a fine particle content (15 to 50%), and corresponds to the type 2 construction-generated soil and the third-class construction-generated soil in terms of soil quality classification. This group B can also be applied to construction materials as it is.

Group C has a water content ratio (40 to 80%) and a fine particle content (50% or more), and corresponds to the type 4 construction-generated soil in terms of soil quality classification. This Group C can be applied to construction materials if appropriate soil improvement is carried out.

Group D has a water content ratio (80% or more), and corresponds to muddy soil (including lumpy soil) as a soil type. This group D requires more cost and time for soil improvement than group C.

Of the four types of groups, group B is shipped as it is, and group D is improved according to the application.
In the case of cohesive soil, the smaller the soil particles, the easier it is to retain water, so the water content tends to increase. On the other hand, in the case of sandy soil, since the soil particles are large, it is difficult to retain water and the water content tends to be small.

As shown in FIG. 5, it is assumed that the fine particle content (%) and the water content ratio (%) of each group are in a substantially proportional relationship. Therefore, group B can be synthesized by mixing group A and group C.
Therefore, the quality adjusting device Q1 of the present embodiment uses the group A (first group) and the group C (second group) to generate the group B as the target soil quality. Specifically, the group A and the group C are stirred and mixed (step S02), the water content ratio is confirmed (step S03), and the product is shipped as the group B (step S04).

The water content ratio measuring devices 11 and 21, 31 of the quality adjusting device Q1 shown in FIG. 1 are devices for measuring the water content ratio of the conveyed soil on the belt conveyors B1, B2 and B4. This water content ratio measuring device 11,21,31 evaluates the hydrogen atomic weight in the transported soil by irradiating the transported soil with fast neutrons generated from the radioactive isotopes and measuring the thermal neutrons generated from the transported soil. Measure the water content ratio. The water content ratio measuring devices 11 and 21 and 31 are arranged on the bottom surface side of the belt conveyors B1, B2 and B4 directly under the discharge ports of the hoppers H1 and H2 and the mixer M1.

The belt scales 12 and 22 are devices for measuring the weight of the conveyed soil on the belt conveyors B1 and B2. In the present embodiment, the weight of the conveyed soil in a predetermined area of the belt conveyors B1 and B2 is continuously measured.

The water content ratio measuring devices 11,21,31, the belt scales 12,22, and the belt conveyors B1 and B2 are connected to the control device 50. The control device 50 adjusts the amount of soil transported by the belt conveyors B1 and B2 based on the information measured by the water content ratio measuring devices 11, 21, 31 and the belt scales 12, 22. The control device 50 records information on the arrangement locations of the water content ratio measuring devices 11, 21, 31 and the belt scales 12, 22, and is about the transported soil in a specific region based on the transport speed of the belt conveyors B1 and B2. , Identify the current position on the belt conveyors B1 and B2.

The wet weight of the soil SG1 is Wt1, and the average water content is Aw1. Further, the wet weight of the soil SG2 is Wt2, and the average water content ratio is Aw2. In this case, the wet weight (Wt3) and the average water content ratio (Aw3) of the soil SG3, which is a mixture of the soil SG1 and the soil SG2, are as follows.

Wet weight Wt3 = Wt1 + Wt2 ... (Equation 1)
Average water content ratio Aw3 = (Wt1 * Aw1 + Wt2 * Aw2) / (Wt1 + Wt2-Wt1 * Aw1-Wt2 * Aw2) ... (Equation 2)

Therefore, the transport amounts (wet weights Wt1 and Wt2) of the soil SG1 and the soil SG2 are controlled so that the wet weight Wt3 corresponds to the processing capacity of the mixer M1. In this case, while measuring the average water content ratios Aw1 and Aw2, the respective transport amounts of the wet weights Wt1 and Wt2 are adjusted so that the average water content ratio Aw3 becomes the target value.
Therefore, the control device 50 holds various data for controlling the hoppers H1 and H2, the mixer M1, the belt conveyors B1 to B4, and the like.

[Quality adjustment processing]
Next, the quality adjustment process (quality adjustment method) in the first embodiment will be described with reference to FIG.
First, the control device 50 executes the transport process of the first group (step S1-1). Specifically, the control device 50 controls the hopper H1 and the belt conveyors B1 and B3, and conveys the soil SG1 discharged from the hopper H1 by the belt conveyors B1 and B3. Here, as the first group, group C having a large water content is used.

Next, the control device 50 executes the measurement process of the first group (step S1-2). Specifically, the control device 50 acquires the water content ratio measured by the water content ratio measuring device 11 and the wet weight measured by the belt scale 12. In this case, the control device 50 associates the water content ratio with the wet weight by using a time difference calculated by dividing the distance from the water content ratio measuring device 11 to the belt scale 12 by the transport speed of the belt conveyor B1. , Store in memory.

Next, the control device 50 executes a determination process as to whether or not the weight target value of the first group has been reached (step S1-3). Specifically, the control device 50 compares the total weight of the wet weight measured by the belt scale 12 with the first group target value (weight target value). As the target value of the first group, the weight of the soil of the first group when the total weight is equal to or less than the processing capacity of the mixer M1 (weight close to the upper limit of the weight that can be agitated at one time) is used. For example, the soil having the highest water content in the first group was mixed with the soil having the highest water content in the second group so that the water content of the mixed soil was within the allowable range of the target water content. Even in this case, the first group target value, which is less than the processing capacity of the mixer M1 and has a weight close to the upper limit, is used.

When it is determined that the weight target value of the first group has not been reached (when "NO" in step S1-3), the control device 50 performs the processing after the first group transfer processing (step S1-1). repeat.

On the other hand, when it is determined that the weight target value of the first group has been reached (when "YES" in step S1-3), the control device 50 executes the transport stop process (step S1-4). Specifically, the control device 50 instructs the hopper H1 and the belt conveyor B1 to stop operating. In this case, the control device 50 calculates the average water content ratio Aw1 of the soil SG1 using the water content ratio and the wet weight stored in the memory.

Next, the control device 50 executes the transfer process of the second group (step S1-5). Specifically, the control device 50 controls the hopper H2 and the belt conveyors B2 and B3, and conveys the soil SG2 discharged from the hopper H2 by the belt conveyors B2 and B3. Here, as the second group, Group A having a small water content and less variation is used. By using the group A as the second group, the mixing can be easily controlled.

Next, the control device 50 executes the measurement process of the second group (step S1-6). Specifically, the control device 50 acquires the water content ratio measured by the water content ratio measuring device 21 and the wet weight measured by the belt scale 22. In this case as well, the control device 50 associates the water content ratio with the wet weight by using the time difference calculated by dividing the distance from the water content ratio measuring device 21 to the belt scale 22 by the transport speed of the belt conveyor B2. And store it in memory. Further, the control device 50 calculates the average water content ratio Aw2 of the transported soil SG2.

Next, the control device 50 executes the compounding calculation process (step S1-7). Specifically, the control device 50 calculates the average water content ratio of the mixed soil when the soil SG2 is added according to (Equation 2).

Next, the control device 50 executes a determination process as to whether or not the water content ratio target value of the mixed soil has been reached (step S1-8). Specifically, the control device 50 compares the calculated average water content ratio of the mixed soil with the target water content ratio (soil quality target value). Here, as the target water content ratio, the water content ratio of Group B (14 to 40%) is used. Then, when the average water content ratio of the mixed soil reaches the target water content ratio, it is determined that the target value has been reached.

When it is determined that the water content ratio target value of the mixed soil has not been reached (when "NO" in step S1-8), the control device 50 performs the processing after the second group transfer processing (step S1-5). repeat.

On the other hand, when it is determined that the water content ratio target value of the mixed soil has been reached (when “YES” in step S1-8), the control device 50 executes the transport stop process (step S1-9). Specifically, the control device 50 instructs the hopper H2 to stop operating.

Next, the control device 50 executes the stirring process (step S1-10). Specifically, the control device 50 operates the mixer M1 to stir and mix the soil SG1 and SG2 carried into the mixer M1 by the belt conveyor B3. Then, when the stirring and mixing are completed, the control device 50 discharges the soil SG3 generated by stirring and mixing the soil SG1 and SG2 from the mixer M1 to the belt conveyor B4.

Next, the control device 50 executes the quality confirmation process (step S1-11). Specifically, the control device 50 acquires the water content ratio measured by the water content ratio measuring device 31. Then, the control device 50 records the wet weights of the soil SG1, SG2, and SG3 and the wet weight Wt3 of the soil SG3 in the memory. In this case, the control device 50 confirms that the acquired water content ratio is within the allowable range of the target water content ratio. If the water content of the soil SG3 is not within the allowable range of the target water content, the control device 50 outputs an alarm. In this case, the person in charge confirms the situation and stores the soil SG3 separately.

If there is no problem with the quality, the control device 50 executes a determination process as to whether or not the planned total amount of mixed soil has been reached (step S1-12). Specifically, the control device 50 calculates the total value of the wet weight Wt3 of the soil SG3 recorded in the memory and compares it with the planned shipping weight (planned total amount) of the soil SG3. When the total value of the wet weight Wt3 exceeds the planned shipping weight of the soil SG3, it is determined that the total planned amount of the mixed soil has been reached.

When it is determined that the total value of the wet weight Wt3 has not reached the planned total amount of the mixed soil (when "NO" in step S1-12), the control device 50 performs the transfer process of the first group (step S1-1). 1) Repeat the subsequent processing.
On the other hand, when it is determined that the planned total amount of mixed soil has been reached (when "YES" in step S1-12), the control device 50 ends the quality adjustment process.

According to this embodiment, the following effects can be obtained.
(1-1) In the present embodiment, group A and group C are stirred and mixed (step S02), water content ratio confirmation (step S03) is performed, and the product is shipped as group B (step S04). As a result, the soil quality of the group C can be adjusted by the group A, and the soil with the adjusted soil quality can be efficiently shipped.

(1-2) In the present embodiment, the control device 50 has a first group transfer process (step S1-1), a first group measurement process (step S1-2), and a second group transfer process (step S1). -5), the measurement process of the second group (step S1-6), and the compounding calculation process (step S1-7) are executed. This makes it possible to confirm the water content ratio of the soil classified by soil quality and generate soil with the target water content ratio.

(1-3) In the present embodiment, the control device 50 executes the stirring process (step S1-10) and the quality confirmation process (step S1-11). As a result, it is possible to confirm the condition of the mixed soil by the allocation calculation and ship it.

(Second embodiment)
Next, a second embodiment of the soil quality adjusting device will be described with reference to FIG. In the first embodiment, the first transport soil and the second transport soil having different soil qualities are transported at different timings, but in the second embodiment, the first transport soil and the second transport soil are transported at the same time. And make quality adjustments. Since the second embodiment has only a configuration in which the transport methods of the first transport soil and the second transport soil of the first embodiment are changed, detailed description thereof will be omitted for the same parts.

[Quality adjustment processing]
Hereinafter, the quality adjustment process (quality adjustment method) in the second embodiment will be described with reference to FIG.
First, the control device 50 executes the first group transfer process (step S2-1) and the first group measurement process (step S2-2) in the same manner as in steps S1-1 and S1-2.

Next, the control device 50 executes the compounding calculation process (step S2-3). Specifically, the control device 50 substitutes the measured results (moisture content ratio, wet weight) of the first group transported into (Equation 1 and Equation 2), and is necessary for the mixed soil to reach the target moisture content ratio. The relational expression of the water content ratio and the wet weight of the second group is calculated.

Next, the control device 50 executes the measurement process of the second group in the same manner as in steps S1-6 (step S2-4). Specifically, the control device 50 calculates the water content ratio and the wet weight of the second group being conveyed by the belt conveyor B2.

Next, the control device 50 executes the transfer adjustment process (step S2-5). Specifically, the control device 50 adjusts the transport speed of the belt conveyor B2 so as to satisfy the relational expression calculated by the compounding calculation. For example, the belt conveyor B2 is adjusted so that the relational expression calculated in step S2-3 is established by substituting the measured water content ratio and wet weight of the second group. In this case, it is preferable to use Group A, which has little variation in the water content ratio, as the second group.

The transport adjustment process is not limited to the control of the transport speed of the second group, and it is sufficient that the transport amount per unit time can be adjusted. For example, the belt conveyor B1 may be stopped or decelerated to reduce the transport amount of the first group.

Next, the control device 50 executes a determination process as to whether or not the stirring weight target value of the mixed soil has been reached (step S2-6). Specifically, the control device 50 compares the total weight of the wet weight of the first group and the wet weight of the second group with the weight that can be stirred at one time by the mixer M1 (stirring weight target value).

When it is determined that the stirring weight target value of the mixed soil has not been reached (in the case of "NO" in step S2-6), the control device 50 performs the processing after the first group transfer processing (step S2-1). repeat.

On the other hand, when it is determined that the stirring weight target value of the mixed soil has been reached (when “YES” in step S2-6), the control device 50 executes the transport stop process (step S2-7). Specifically, the control device 50 sequentially instructs to stop the operation of the hoppers H1 and H2, stop the operation of the belt conveyors B1 and B2, and stop the operation of the belt conveyor B3.
Next, the control device 50 executes the stirring process (step S2-8) and the quality confirmation process (step S2-9) in the same manner as in steps S1-10 and S1-11.

Next, the control device 50 executes a determination process as to whether or not the planned total amount of mixed soil has been reached (step S2-10), as in step S1-12. Specifically, when the total value of the wet weight Wt3 of the soil SG3 recorded in the memory exceeds the planned shipping weight of the soil SG3, the control device 50 determines that the planned total amount of the mixed soil has been reached.
When it is determined that the planned total amount of mixed soil has not been reached (in the case of "NO" in step S2-10), the control device 50 repeats the process after the first group transfer process (step S2-1).
On the other hand, when it is determined that the planned total amount of mixed soil has been reached (when "YES" in step S2-10), the control device 50 ends the quality adjustment process.

According to the second embodiment, the following effects can be obtained in addition to the effects of the first embodiment.
(2-1) In the present embodiment, the control device 50 executes the transfer adjustment process (step S2-5). As a result, it is possible to generate mixed soil of the target soil quality by adjusting the transport speed while transporting the first group and the second group at the same time.

This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
-In each of the above embodiments, the control device 50 controls the belt conveyors B1 to B3. Here, the belt conveyor may be controlled manually. In this case, the control device 50 outputs the operation / stop timing and the transfer speed of the belt conveyor to the output unit based on the measurement result. Then, the person in charge manually controls the operation of the belt conveyors B1 to B3 according to the output contents at this timing.

In each of the above embodiments, the soil of the first group and the second group are conveyed by using the first transfer system 10 composed of the hopper H1 and the belt conveyor B1 and the second transfer system 20 composed of the hopper H2 and the belt conveyor B2, respectively. do. Instead of this, if the soil of the first group and the second group can be transported, the configuration of the transport system is not limited to the hopper and the belt conveyor. For example, the soil of the first group and the second group may be conveyed from the hoppers H1 and H2 by batch processing while changing the arrangement of one belt conveyor.

-In the second embodiment, after the transportation of the first group and the second group is completed, stirring is performed by batch processing. Instead of this, continuous stirring may be performed in parallel with the transportation of the first group and the second group. In this case, a mixer capable of continuously stirring is used. Then, the first group and the second group carried in by the belt conveyor B3 are continuously agitated and discharged to the belt conveyor B4. That is, the transfer process and the mixer process are performed in parallel.

-In each of the above embodiments, in order to measure the soil quality, a water content ratio measuring device 111, 21, 31 is used, which irradiates the transported soil with fast neutrons generated from the radioisotope and measures the thermal neutrons generated from the transported soil. .. The soil quality measuring method is not limited to the method using a water content ratio measuring device as long as the soil quality can be classified. For example, the cross-sectional area and dry density of the transported soil may be used.

For example, the softness of the conveyed soil on the belt conveyor may be evaluated. In this case, an inclined iron plate is provided on the belt conveyor, and the resistance (load) when the conveyed soil hits the inclined iron plate is measured using a load cell. Further, a motor installed on the rotary blades may be provided on the belt conveyor, and the load when the conveyed soil hits the rotary blades may be measured as a current value by the motor. In either case, in the case of cohesive soil, a large load or current value will be measured.

Further, the evaluation may be made using the acoustics at the time of transporting the transported soil. In this case, a step is provided on the belt conveyor, and the sound of the fall at this step is collected. For example, when the sound generated in a plate-shaped soundboard is collected, a continuous small sound is generated in the case of sandy soil, and a discontinuous loud sound is generated in the case of cohesive soil. Therefore, sound (frequency characteristics) according to the shape of the transported soil (presence or absence of lumps, etc.) is prepared in advance, and the control device 50 evaluates the soil quality by frequency analysis of the sound collected during transportation.

Further, the shape of the transported soil may be photographed by a camera. In this case, the image taken by the camera is analyzed to evaluate the shape of the transported soil (presence or absence of lumps, etc.). Further, a step may be provided on the belt conveyor, and the falling situation from the step may be photographed and evaluated by a camera.

-In each of the above embodiments, Group C is used as the first group and Group A is used as the second group. If soil with soil evaluation values on both sides is used for the target soil quality, the combination of soil quality is not limited.

-In the first embodiment, the control device 50 executes the compounding calculation process (step S1-7). Specifically, the control device 50 calculates the average water content ratio of the mixed soil when the soil SG2 is added according to (Equation 2). Here, the compounding calculation method for determining the end of the transport process of the second group is not limited to this.

For example, the wet weight (Wt1) and the average water content ratio (Aw1) of the sequentially transported soil SG1 are substituted into the right side of (Equation 2), and the representative value of the water content ratio of Group B is substituted into the average water content ratio (Aw3) on the left side. It may be calculated using a function formula in which (for example, 27%) is substituted. In this case, the total weight (Wt2) and the average water content ratio (Aw2) of the soil SG2 are sequentially substituted into the function formula in accordance with the transport process (step S1-5) of the second group, and the function formula is established. Check if. Then, when the function formula is established, it is determined that the water content ratio target value of the mixed soil has been reached (“YES” in step S1-8).

Q1 ... Quality adjustment device, 10 ... 1st transfer system, 20 ... 2nd transfer system, 30 ... Mixing system, H1, H2 ... Hopper, B1, B2, B3, B4 ... Belt conveyor 11,21,31 ... Water content ratio Measuring device, 12, 22 ... Belt scale, M1 ... Mixer.

Claims (6)

A measuring unit that measures the soil quality evaluation value and weight of the transported soil on the transport device,
A soil quality adjusting device provided with a control unit for controlling the transport device.
The control unit
The first soil quality evaluation value and the first weight of the first transported soil belonging to the first group were measured by the measuring unit.
The second soil quality evaluation value and the second weight of the second transported soil belonging to the second group were measured by the measuring unit.
The soil quality evaluation value of the first soil quality evaluation value and the first weight of the first transport soil, and the soil quality evaluation value of the third transport soil obtained by mixing the second soil quality evaluation value and the second weight of the second transport soil becomes the soil quality target value. In addition, a soil quality adjusting device for controlling the transport of the first transport soil and the second transport soil by the transport device. The soil quality adjusting device according to claim 1, wherein the measuring unit measures the water content ratio as a soil quality evaluation value. The control unit mixes the first transport soil and the second transport soil, obtains the soil quality evaluation value of the agitated third transport soil, and obtains the soil quality evaluation value.
The soil quality adjusting device according to claim 1 or 2, wherein the comparison result between the soil quality evaluation value and the soil quality target value is output. The control unit
When the first weight of the first transported soil reached the weight target value, the transportation of the first transported soil is stopped.
The soil quality adjusting device according to any one of claims 1 to 3, wherein the second transported soil is transported until the soil quality evaluation value of the third transported soil reaches the soil quality target value. .. The control unit
Based on the first soil quality evaluation value and the first weight of the first transported soil, the second soil quality evaluation value and the second weight of the second transported soil, the soil quality evaluation value of the third transported soil becomes the soil quality target value. As described above, the quality adjustment of the soil quality according to any one of claims 1 to 3, wherein the transport device controls the transport amount of the first transport soil and the second transport soil per unit time. Device. A measuring unit that measures the soil quality evaluation value and weight of the transported soil on the transport device,
It is a method of adjusting the soil quality by using a quality adjusting device provided with a control unit for controlling the transport device.
The first soil quality evaluation value and the first weight of the first transported soil belonging to the first group were measured by the measuring unit.
The second soil quality evaluation value and the second weight of the second transported soil belonging to the second group were measured by the measuring unit.
The soil quality evaluation value of the first soil quality evaluation value and the first weight of the first transport soil, and the soil quality evaluation value of the third transport soil obtained by mixing the second soil quality evaluation value and the second weight of the second transport soil becomes the soil quality target value. In addition, a quality adjusting method comprising controlling the transport of the first transport soil and the second transport soil by the transport device.

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