JP2002004269A - System and method for soil improving management - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable strict management of an accurate quantity of hardener necessary for soil improvement. SOLUTION: When soil improving works are carried out in a plurality of sites, a soil improving machine operated in each execution site and a operation schedule are included in the processing plan. Estimated data of daily or hourly consumption (consumption of each soil improving machine and total consumption) of the hardener are prepared on the basis of the processing capacity and operating time of in each soil improving machine. A computer 55 of a control center CC requests each soil improving machine to transmit data through communication means 56 and at least data relative to the consumption of the hardener and data relative to the production of improved soil are transmitted from the communication means 54 and inputted in the computer 55 and hence, a correct hardener stock and a correct holding quantity of the hardener in each soil improving machine are computed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for improving soil quality, such as ground improvement work, roadbed improvement work, burial work for pipes and common ditches, etc., by mixing a solidified material such as lime with earth and sand generated by excavation and the like, and reducing the soil quality. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil quality improvement solidification material management system for supplying a solidification material to a soil improvement machine used for improvement or managing inventory, and a management method thereof.

[0002]

2. Description of the Related Art For example, ground improvement work, roadbed improvement work,
Suitable for burying pipes, etc., because the soil generated by excavation is soft, etc. May not be. In this case, the earth and sand generated by the excavation are discarded, and a new high-quality soil is carried in. However, in recent years, it has become difficult to obtain high quality soil, and because there is no place to dispose of the generated soil, etc., the soil quality has been improved by mixing the solidified material with the soil generated by excavation. There is an increasing demand for reusing the improved soil obtained as above as ground material, roadbed material, backfill material and the like.

[0003] A machine for improving the soil quality as described above includes at least a means for supplying earth and sand, a means for supplying solidified material, and a mixing means for mixing earth and sand with the solidified material. As this type of machine, a large machine fixedly installed in a plant facility or the like has been widely used. When performing soil improvement at this plant facility, although high quality improved soil can be mass-produced, it is necessary to intensively treat a large amount of soil from the viewpoint of mechanical efficiency and space efficiency, etc.
For this, sediment must be collected from a large area. The transportation of the earth and sand and the supply of the produced improved soil are carried out by means of transportation such as dump trucks. However, if the transportation distance is long, the transportation cost becomes extremely high, and frequent traffic such as dump trucks causes traffic obstacles. There is a problem such as making it.

On the other hand, in recent years, small and self-propelled machines equipped with the above-described means on a traveling vehicle, and soil improvement machines which can be transported by a trailer or the like have been put to practical use. Such a small and portable soil improvement machine can be carried into a construction site or the like where excavated soil is generated, and soil improvement processing can be performed at the site. Therefore, the problems that occur in the case of a plant facility can be solved, the efficiency of the soil improvement process can be improved, and the cost of the improved soil can be reduced in that there is no need to transport earth and sand.

[0005] In particular, when a large amount of earth and sand must be treated, such as when constructing a highway or laying a common ditch, the self-propelled soil improvement machine must be kept resident for a certain period of time to make it necessary. The excavated earth and sand can be improved accordingly. Furthermore, since the produced improved soil can be used immediately as a roadbed material, a backfill material, etc., when using a lime-based solidified material, the improved soil is conditionally best in a predetermined condition. There is also an advantage that it can be used for a purpose.

A portable soil improvement machine is provided with a small-scale yard, and sediment is accumulated in the yard. When a certain amount of soil is accumulated, the soil improvement machine is carried into the yard. Therefore, it can be used in a mode of improving soil quality. Here, unlike a soil improvement plant using stationary machines, the soil improvement machine can be run on its own, so it is possible to process the accumulated sand in the yard and deposit the improved soil in the empty space. it can.
For this reason, there is an advantage that the yard space efficiency is increased. And since a soil improvement machine can be reused for several yards, it is advantageous also from a viewpoint of mechanical efficiency. Furthermore, by scattering small yards over a wide area, the distance between each yard and the area where the soil to be treated is generated and the area where the improved soil is consumed can be shortened. Reduction is achieved.

[0007]

However, unlike other earth-moving machines and construction machines, the soil-improving machines cannot perform necessary work by themselves. In order to carry out soil improvement work using a soil improvement machine, a solidifying material must be supplied. As the solidifying material, a so-called flexible container in which a solidifying material of 1 ton, 3 ton or the like is packed in a container is generally used. To operate the soil improvement machine efficiently, it is necessary to stock a necessary amount of solidified material. However, the solidifying material is usually one containing lime or cement as a main component, and although it is packed in a bag and substantially sealed,
This kind of material absorbs moisture with the passage of time, and is deteriorated or deteriorated. In particular, lime is highly water-absorbing, and may change or deteriorate in a few days depending on its management state. Further, even in the case of cement, it also deteriorates after several weeks depending on the management state and the like, and cannot be used as a solidifying material.

[0008] From the above, in order to operate the soil improvement machine efficiently and to produce high quality improved soil with the soil improvement machine, it is extremely important to supply the solidified material and control the stock. Become. Moreover, the mixing ratio of the solidified material to the earth and sand will vary greatly depending on the nature and state of the earth and sand, and even if the soil improvement machine has the same processing capacity, the unit time depends on the nature and state of the earth and sand. The processing amount per hit fluctuates. Therefore, in controlling the supply amount and the stock amount of the solidified material to the soil improvement machine, it is necessary to consider these fluctuation factors. In particular, when a plurality of soil improvement machines are intensively managed and each of the soil improvement machines is subjected to soil improvement treatment at various construction sites, etc., a solidified material is procured to each of the soil improvement machines without excess or deficiency. It is extremely difficult. As a result, there is a problem that the operation of the soil improvement machine is inevitably stopped due to the supply of the solidified material and the shortage of the stock, and the solidified material is excessively supplied and the excessive stock, resulting in deterioration of quality due to deterioration.

In particular, since the solidified material has water absorbability and the soil improvement treatment is usually performed outdoors, the operating conditions of the soil improvement machine may vary depending on the weather, for example, the soil improvement treatment cannot be performed in rainy weather. In addition, when improving the soil quality of soil with a high moisture content due to the absorption of rainwater by the soil, various fluctuations such as the need to change the mixing ratio of soil and solidified material that have been set in advance may be required. There are factors,
Taking these fluctuation factors into account, it is extremely difficult to properly manage the solidified material.

[0010] The present invention has been made in view of the above points, and an object of the present invention is to enable strict control of the supply amount or stock of solidified material necessary for soil improvement treatment without excess or shortage. It is in.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object. First, as a first invention relating to a solidification material management system for soil improvement, there is provided a system for managing a supply amount of a solidification material to be supplied to a soil improvement machine for producing an improved soil by mixing a solidification material with earth and sand. A solidified material estimated consumption calculating means for calculating a solidified material estimated consumption amount at predetermined time intervals from the soil improvement processing capacity of the soil improvement machine and an operation schedule thereof, and a predetermined amount actually consumed by the soil improvement machine. A solidified material actual consumption measuring means for measuring the amount of solidified material at each time interval, a solidified material consumption estimated by the solidified material estimated consumption calculating means and a predetermined time interval actually consumed by the soil improvement machine; Solidified material predicted consumption calculating means for calculating the predicted consumption of the solidified material at predetermined time intervals by the soil improvement machine based on the amount of the solidified material at each predetermined time interval. From the predicted consumption, the amount of the solidified material consumed within a period in which the solidified material does not deteriorate is determined, and it is configured to manage so as to determine the supply amount of the solidified material to be supplied to the soil improvement machine. It is a feature.

Here, the supply amount management of the solidified material is generally performed by an information processing device installed at a predetermined position, for example, a computer, but data on the actual consumption of the solidified material is obtained from a soil improvement machine. Since it is necessary to exchange data between the soil improvement machine and the computer via communication means, the actual consumption of the solidified material by the solidified material actual consumption measurement means of the soil improvement machine is calculated in real time by the computer. It is desirable to be configured so as to take in. According to the situation of the operation site of the soil improvement machine, this communication means is a wireless communication means, but in addition to the actual consumption of the solidified material, other data, at least generation of the improved soil, It is desirable that the data relating to the quantity be transmitted.

In this case, since various soil improvement machines do not always operate in an ideal state, various fluctuation factors may occur. For example, depending on the nature and condition of the soil to be treated, the efficiency of the soil improvement treatment varies, and the mixing ratio of the solidified material to the sand must be adjusted. Therefore, it is necessary to transmit various fluctuation factors at the time of soil improvement processing in each soil improvement machine by the communication means, and to be able to correct based on information on the fluctuation factors in each soil improvement machine. It is more desirable to accurately perform

[0014] In the second invention, a plurality of soil improvement machines for producing an improved soil by mixing a solidified material with soil and sand are operated at a plurality of soil improvement treatment sites, and are consumed at the respective soil improvement sites. Is a system for centrally managing the inventory of solidified materials at the management center, and the amount of soil to be treated to be treated at each of the soil improvement treatment sites, and the amount of soil and soil to be treated at each of these soil improvement treatment sites. A required amount of solidified material calculating means for calculating the required amount of solidified material based on the mixing ratio of the solidified material, and a predetermined time interval from the soil improvement processing capacity of each soil improvement machine and the operation schedule of each soil improvement machine. Solidified material estimated consumption calculating means for calculating the solidified material estimated consumption amount, solidified material actual consumption measuring means for measuring the amount of solidified material for each predetermined time interval actually consumed by each of the soil improvement machines, each Communication means provided in the quality improvement machine and the management center, and transmitting the actual consumption data of the solidified material measured by at least the solidification material actual consumption measurement means of each soil improvement machine to the management center; and acquiring by the communication means The total solidified material for calculating the predicted total consumption of the solidified material at predetermined time intervals based on the actual consumption data of the solidified material by the respective soil improvement machines and the estimated solidified material consumption by the solidified material estimated consumption calculating means. A configuration in which the amount of solidified material consumed during a period in which the solidified material does not deteriorate is determined from the consumption amount calculating means and the estimated total solidified material consumption at each predetermined time interval, and the amount of the solidified material is managed as an appropriate stock amount. The feature is that it is.

Further, the first invention of the method for managing the solidified material for soil improvement is a method for controlling the supply of the solidified material to a soil improvement machine for producing the improved soil by mixing the solidified material with earth and sand. The feature is that the required amount of solidified material is calculated from the amount of soil to be treated to be processed by the soil improvement machine and the mixing ratio of the solidified material to the amount of soil to be treated, and the soil improvement of the soil improvement machine is performed. An estimated amount of solidified material consumed at predetermined time intervals is calculated from the processing capacity and its operation schedule, and a predetermined time interval actually consumed by the soil improvement machine is compared with the solidified material consumption thus estimated. Information on the amount of solidified material at each time interval is acquired, and the actual solidified material consumption at each predetermined time interval in the soil improvement machine is calculated. From the amount, the amount of solidified material consumed within a period during which the solidified material does not deteriorate is determined, and the amount of solidified material is managed so as to determine the amount of solidified material to be supplied to the soil improvement machine. is there.

When the management of the amount of solidified material supplied is performed by the management center, the amount of solidified material actually consumed by the soil improvement machine at predetermined time intervals is transferred from the soil improvement machine to the management center by communication means. It is preferable to set to transmit. The operation schedule of the soil improvement machine can be set so as to be corrected according to the weather condition.

Furthermore, a second invention relating to a method for managing solidified material for soil improvement is to operate a plurality of soil improvement machines for producing improved soil by mixing the solidified material with soil and sand at a plurality of soil improvement treatment sites. This is a method for centrally managing the inventory of the solidified material consumed at each soil improvement site at the management center, and the amount of soil to be treated at each soil improvement site, and the amount of each soil improvement process The required amount of solidified material is calculated based on the mixing ratio of the soil and the solidified material to be processed at each site, and a predetermined time interval is determined based on the soil improvement processing capacity of each soil improvement machine and the operation schedule of each soil improvement machine. The estimated amount of solidified material consumption at each time interval is calculated, and the estimated amount of solidified material consumption at each predetermined time interval is corrected based on the information on the fluctuation factors in each soil improvement machine, and Calculate the cost, determine the amount of solidified material consumed within a period in which the solidified material does not deteriorate from the solidified material total consumption at each predetermined time interval, and manage this solidified material amount as an appropriate inventory amount. This is the feature.

When a shortage occurs with respect to the appropriate stock amount, it is desirable to perform an operation for ordering the insufficient solidified material based on the data obtained as described above. In addition, the fluctuation factors are at least one of the actual operation time of the soil improvement machine, the actual solidification material consumption amount at each predetermined time interval, and the actual improvement soil production amount at each predetermined time interval, and preferably all of them. Can be obtained by a management center or the like by means of communication from the soil improvement machine. Further, another variation factor is a weather condition at each soil improvement treatment site. Especially after the rainfall, the water content of the soil to be treated fluctuates.Therefore, when treating the soil with high water content, the mixing ratio of the solidified material may be changed, such as by increasing the mixing ratio. As such, this is also an important variable.

Representative examples of the solidifying material mixed with earth and sand include those mainly containing lime and those mainly containing cement. In the case of lime, deterioration or deterioration due to water absorption occurs in several days, so the above-mentioned time interval is preferably in units of hours. On the other hand, in the case of cement, the degree of deterioration is slower than that of lime, and it does not deteriorate much for about several weeks. Therefore, when cement is used as the solidifying material, the time interval may be managed in units of hours, but may be managed in units of days or weeks.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. The soil improvement machine used in the present invention is a machine for mixing earth and sand with a solidified material. A typical example of the mixing system in this soil improvement machine is disclosed in, for example, JP-A-2000-45263. The disclosed mixing method is disclosed in Japanese Patent Application Laid-Open No. HEI 9-19526.
There is a pulverizing method disclosed in Japanese Patent Publication No. 5 and the like. In the present invention, these or other various soil improvement machines can be used, and various soil improvement machines can be used in combination.

First, FIGS. 1 and 2 show a concrete configuration of a mixing type soil improvement machine. The mixing type soil improvement machine 1 is provided with a vehicle body 3 on a lower traveling body 2 of a crawler type.
An improved soil discharging section 6 is provided.

The mixed material supply section 4 has a sediment hopper 7 and a solidified material hopper 8, and both hoppers 7, 8 are for supplying earth and sand and solidified material, respectively. The earth and sand and the solidified material are supplied to a mixed material feeder 9 comprising a belt conveyor provided. The mixed material feeder 9 is for supplying the mixed material to the mixing container 10 constituting the mixing means 5.
As is apparent from FIG. 2, the mixing container 10 has an inlet 10a formed at an upper end at one end for receiving a mixed material composed of the earth and sand supplied from the mixed material feeder 9 and the solidified material. A paddle mixer 11 for stirring and mixing the mixed materials is mounted. Therefore, when the paddle mixer 11 is rotated, the earth and sand introduced into the mixing vessel 10 and the solidified material are stirred and mixed, and a flow is formed in the direction indicated by the arrow in FIG. A discharge port 10b for the improved soil is provided at a lower position on the other end side of the mixing container 10, and the improved soil discharged from the discharge port 10b is conveyed to a belt conveyor constituting an improved soil discharge section, and is provided with a predetermined amount. Will be deposited at the position.

FIG. 3 shows a crushing type soil improvement machine. As shown in the figure, a crushing type soil improvement machine 20 is provided with a vehicle body 22 provided on a crawler type lower traveling body 21.
, A mixing means 24 and an improved soil discharging section 25. The mixed material supply unit 23 includes a sediment hopper 26, a solidified material hopper 27, and a mixed material feeder 28,
These configurations are not substantially different from the mixing type soil improvement machine 1. Mixed material feeder 28
Is extended to the upper position of the mixing means 24, a rotary cutter 29 is provided at the upper end position of the casing of the mixing means 24, and a plurality of rotary strikers 30 are provided below the rotary cutter 29 of the casing. The rotary cutter 29 and the rotary striker 30 constitute a crusher 31. Therefore, when the mixed material composed of the earth and sand and the solidified material is supplied from the mixed material feeder 28 while operating the crusher 31, the mixed material is cut off by the rotary cutter 29 and provided on the outer peripheral surface of the rotary striker 30. By sequentially hitting the mixed material falling from above with the hitting claw,
It is configured to mix a solidifying material.

The mixing-type soil improvement machine 1 and the crushing-type soil improvement machine 20 configured as described above are both portable and self-propelled. Therefore, it is carried into the site where the soil improvement process is performed, and the soil improvement process is performed by self-propelled to an appropriate position. FIG. 4 shows a state in which the mixing type soil improvement machine 1 is being transported. As is clear from the figure, the soil improvement machine 1 is a carrier TR of the trailer TT.
It can be mounted on an upper road so that it can travel on a general road, and therefore is small and compact as a whole.
The soil improvement machine shown in FIG. 4 is a mixing type soil improvement machine 1, and the solidified material hopper 8 of the soil improved machine 1 is of a bellows type, and the bellows portion of the solidified material hopper 8 is transported during transportation. The size in the height direction is reduced by reducing the size.

The mixing-type soil improvement machine 1 and the crushing-type soil improvement machine 20 are transported by the trailer TT described above, and are carried to the site where the soil improvement processing is performed, where the soil improvement processing is performed. Therefore, FIG. 5 shows a state in which soil improvement processing is being performed at an expressway construction site, and FIG. 6 shows a state in which soil improvement is being performed in a yard. In these drawings, the mixing type soil improvement machine 1, the crushing type soil improvement machine 20, and the soil improvement machine having other structures are collectively referred to by the symbol MM.

In order to construct an expressway, a solidified material is mixed with excavated soil generated in the process of forming a roadbed to form a roadbed material. For example, as shown in FIG.
In order to improve the soil quality of the piled excavated soil ES, two hydraulic excavators PS were used together with the soil improvement machine MM.
₁ and PS ₂ are used. One hydraulic excavator PS ₁ performs an operation of putting excavated soil S into the soil hopper of the soil improvement machine MM, and the other hydraulic excavator PS ₂ uniformly distributes the soil and the solidified material by the soil improvement machine MM. This is for scooping the mixed improved soil from the deposit site SS and loading it on a dump truck or the like.

[0027] activates the hydraulic excavator PS _1, when the excavated soil ES is turned to the soil hopper of the soil improvement machine MM is started, it starts soil improvement according to the soil improvement machine MM. That is, when the soil improvement machine 1 is used, when the earth and sand put into the earth and sand hopper 7 is conveyed by the mixed material feeder 9, the solidified material is added from the solidified material hopper 8 to the conveyed earth and sand, and the mixing vessel 10 is mixed. Guided inside. Then, by operating the paddle mixer 11 in the mixing vessel 10, the improved soil is produced. This improved soil is the improved soil discharge section 6
From the soil improvement site SS. Then, the hydraulic excavator PS ₂ is operated to transfer the improved soil to a dump truck or the like, and the improved soil is transported to a position to be embanked by the dump truck. Work such as spreading and compaction is performed using such a machine.

FIG. 6 shows a state in which soil improvement is performed in the yard YD using the soil improvement machine MM. Here, the yard YD is a sediment accumulation site where soil improvement processing is to be performed, and the YD is loaded into the yard by a dump truck or the like. When the soil is accumulated to some extent, the soil improvement machine MM is carried into the yard YD by a transportation means such as a trailer, and performs the soil improvement processing. And
The improved soil produced by this process is shipped to the consuming area as backfill material, ground material and the like. Here, the yard YD is
It is sufficient if there is at least a space to accumulate earth and sand, and since it is preferable to install a simple material storage space in addition to this space, unlike a soil improvement treatment plant where plant equipment is installed, Can be set.

To improve the soil quality in the yard, a hydraulic excavator PS is used together with the soil improvement machine MM, and the soil improvement processing itself is performed in the same manner as shown in FIG. Since the soil improvement machine MM and the hydraulic excavator PS are self-propelled, the space vacated by the soil improvement processing can be used as a deposit site for the improved soil, so that the space efficiency of the yard YD is increased.

As described above, the soil improvement machine performs soil improvement processing at various sites, and the solidification material must be supplied to them without excess or deficiency. Solidified materials are mainly lime-based and cement-based materials, but these deteriorate or deteriorate due to water absorption, so strict management is required and they must be consumed within a set period. . In particular, when centralized management is to be performed by a personal computer or the like installed in the management center of a soil improvement company having a large number of soil improvement machines, inventory management of the solidification material as a whole and solidification material for each soil improvement machine are required. It is necessary to perform supply management. Here, the solidified material is supplied in the form of a flexible container in which a predetermined amount is packed in a bag, for example, 1 ton or 3 tons, and the solidified material hopper of the soil improvement machine sufficiently stores approximately one bag of the solidified material. It is designed to have a volume that can be used. As described above, the management of the solidified material is performed in units of the flexible container. In the present invention, the management of the solidified material can be strictly performed. Therefore, a method for managing the solidified material will be described below.

The time until deterioration is different between the case where lime is used as the solidifying material and the case where cement is used. In the case of a lime-based solidified material, it is managed so as to be completely consumed within one week at the latest, and in the case of using a cement-based solidified material, it is managed so as to be completely consumed in about 3 to 4 weeks. That is, although the lime-based and the cement-based have different management time spans, there is no particular difference in the management method itself. Therefore, a method of managing the lime-based solidified material will be described below.

In managing the solidified material, it is necessary to first obtain information on the demand of the solidified material. The required amount of the solidified material can be obtained from the amount of soil to be treated at each soil improvement treatment site and the mixing ratio of the soil and the solidified material. Here, the amount of soil to be treated is an approximate value, which is the amount of soil and soil to be improved at a ground improvement site, a roadbed improvement site, a yard, or the like. Further, the mixing ratio of the earth and sand to the solidified material is individually set based on the properties and state of the earth and sand to be treated at each site, particularly the water content, the purpose of use, the purpose of use, and the like. The amount of soil to be treated and the mixing ratio between the soil and the solidified material are data obtained when an order for soil improvement treatment is received. Therefore, the demand amount of the solidified material can be obtained by calculation from the planned soil amount and the mixing ratio.

Further, information on the expected consumption of the solidified material at each unit time interval is also required. The unit time interval of the scheduled consumption may be in units of one day, or may be in units of one hour. In any case, it can be obtained based on the processing capacity of each soil improvement machine and its operation schedule. From the given construction period, assuming that the operation schedule of the soil improvement machine to be operated at the processing site concerned, that is, the schedule and the operating time per day were set, and the soil improvement machine was operated according to this schedule, It is possible to calculate the expected consumption of the solidified material.

However, the scheduled consumption of the solidified material is the scheduled consumption when the soil improvement machine is operated as scheduled. However, when the soil improvement processing is actually performed by each soil improvement machine, the processing may not always be performed as scheduled. Thus, the actual data of the soil improvement process from the actually operating soil improvement machine is set as a fluctuation factor with respect to the scheduled consumption, and the data on the consumption of the solidified material is corrected based on the actual value. Further, the soil improvement machine may not always be operated as planned. For example, it may be necessary to change a preset processing plan due to a variable factor other than the processing results, such as the need to stop the work in rainy weather. As described above, since there are various fluctuation factors, it is necessary to correct at least the scheduled consumption of the solidified material.

Accordingly, the soil improvement machine is provided with a device for creating performance data relating to the soil improvement processing. Therefore, FIGS. 7 and 8 show a schematic configuration of an apparatus for creating the result data.

First, in FIG. 7, reference numeral 40 denotes a controller and reference numeral 41 denotes a monitor. The controller 40 includes data on the operation status of the machine from various sensors and rotation detectors provided in each operation section of the soil improvement machine. Is provided to process various data thus captured and output a drive signal to each drive unit.

Reference numeral 42 denotes a means for measuring the actual consumption of the solidified material;
3 is an improved soil production measuring means. The solidified material actual consumption measuring means 42 includes a solidified material feeder 4 attached to the solidified material hopper.
The solidified material is supplied by rotating a rotor 45 provided in the motor 4 by a motor 46. When the rotor 45 makes one rotation, a predetermined amount of the solidified material is supplied to the mixed material feeder. Thus, the amount of solidified material supplied per unit time, that is, the amount of consumption, can be measured from the amount of solidified material supplied for one rotation of the rotor 45 and the number of rotations of the motor 46. The solidified material supply amount for one rotation of the rotor 45 is set in the controller 40 in advance, and information on the number of rotations of the rotor 45 is taken into the controller 40, whereby the actual solidified material consumption per unit time is measured. For this purpose, a rotation speed detector 47 is attached to the motor 46, and a signal from the rotation speed detector 47 is taken into the controller 40 as a solidification material consumption measurement signal.

On the other hand, the improved soil production measuring means 43 has a conveyor scale 48 provided on the discharge conveyor. The conveyor scale 48 is for measuring the weight of the discharge conveyor at a predetermined position, and when the improved soil is transported, the belt 49 of the discharge conveyor bends downward. Accordingly, the seesaw-shaped operation member 50 is displaced by the bending of the belt 49, and the displacement amount of the operation member 50 is measured by the displacement sensor 51. Further, since the feeding of the belt 49 is performed by the motor 52, a rotation speed detector 53 is connected to the motor 52, whereby the feeding speed of the belt 49 can be detected. Therefore, the detection signal of the displacement sensor 51 is used as the weight signal of the improved soil, and the detection signal of the rotation speed detector 53 is used as the transport speed signal of the improved soil.
It is taken into 0, and a predetermined calculation is performed by the controller 40, whereby the production amount of the improved soil per unit time is measured.

Further, the controller 40 includes a communication device 54.
Is connected. Various signals processed in the controller 40 can be transmitted from the communication device 54. In addition, as shown in FIG.
A computer 55 is installed in C as an information processing device for managing the solidified material.
A communication device 56 is connected to 5. Therefore, the communication devices 54 and 56 are configured to be able to transmit and receive data. Here, since a communication line may not always be obtained at the work site where the soil improvement process is performed, it is desirable to transmit this data by wireless communication. For this purpose, for example, a communication satellite can be used, and the communication devices 54 and 56 may be mobile phones. In short, as long as data can be transmitted and received between the communication devices 54 and 56, the specific communication means can take various modes. The communication devices 54 and 5
Data 6 needs to be transmitted at least from the communication device 54 to the communication device 56, but it is preferable that the device 6 be capable of two-way communication.

As shown in FIG. 8, the soil improvement machines MM are operating at a plurality of soil improvement processing sites, and predetermined data is transmitted from each of the soil improvement machines MM to the computer 56 of the management center CC. Is transmitted to The data to be transmitted are, at a minimum, data on the actual consumption of the solidified material from the soil improvement machine MM per unit time and data on the production of the improved soil per unit time. In addition, in addition to these, operating conditions of the mixing means or crusher and other,
Data relating to the operation state of the soil improvement machine MM is also transmitted, and from these data, the operation state of the soil improvement machine MM can be confirmed and a failure diagnosis can be performed. Note that the data may be transmitted in real time from the soil improvement machine MM. However, a transmission command is transmitted from the computer 56 to each soil improvement machine MM, and based on the transmission instruction, the data is transmitted from each soil improvement machine MM. Setting to transmit required data is advantageous in terms of signal processing and the like.

The reason why the data from each soil improvement machine MM is taken in is to manage the inventory of the solidified material and supply management to each soil improvement machine MM. In each soil improvement machine MM, a flexible container FC stocked in the material storage HS is delivered by a dump truck DT, and a predetermined amount of the flexible container FC is stored in the material storage HS. And
The flexible container FC received in the material storage site HS must be consumed before the solidified material contained therein is deteriorated or deteriorated. Here, when using a lime-based material as the solidifying material, at least 1
It should be consumed within a week, preferably within 5 days.

Therefore, for example, it is assumed that the material storage HS stores an amount of solidified material that is consumed in about three days, and each soil improvement machine MM is set to hold the solidified material consumed in two days. A method for managing the solidified material will be described with reference to FIGS. However, when using another type of solidifying material, for example, a cement-based solidifying material, the management method itself is not particularly different, since the period until deterioration or deterioration is longer than that of the lime-based solidifying material. In addition, the management of the solidified material is basically a flexible container F
This is performed using the number of C as a unit.

First, in FIG. 9, step 1 is to determine whether or not a new order has been received for the soil improvement processing. When a new order has been received, details regarding the order are input to the computer 55 (step 2). Here, the input items related to the order include at least the location of the soil improvement treatment site, the scheduled amount of soil to be treated, the mixing ratio of soil and solidified material, the construction period, and the like. Therefore, the demand amount of the solidified material at the construction site, that is, the estimated solidified material consumption is determined based on the scheduled soil amount and the mixture ratio of the solidified material. Here, the amount of soil to be treated is an approximate value and is set as a rough guide.

Next, in step 3, a processing plan is input. Here, the treatment plan includes at least which soil improvement machine is to be used and an operation schedule of the soil improvement machine. Here, it is determined which one of the plurality of soil improvement machines to use in consideration of the position, state, construction period, etc. of the soil improvement treatment site. The operation schedule is a schedule related to the operation of the soil improvement machine, and more specifically, the operation time can be set. This operation schedule is determined based on the soil improvement processing capacity of the soil improvement machine to be used and the construction period.
Therefore, for each soil improvement machine, the soil improvement processing capacity in a steady state is measured, and this processing capacity value is registered in the computer 55 in advance. This facilitates setting of the operation schedule and the like.

Since the set operation schedule is not always as scheduled, if there is a change in the plan, the items to be changed are input to the computer 55 (step 4). Note that there is no need to input to the computer 55 unless a new order is received or a plan is not changed. Factors that cause a change in the plan include various factors such as correction of the amount of soil to be treated, fluctuations in the progress of construction work as a whole, and problems in securing workers. Here, the scheduled soil volume is set as an estimated value when a new order is received, but the actual amount of soil to be processed may be larger or smaller than the estimated value. Therefore, the amount of soil to be treated can be adjusted later. In addition, the demand for the solidified material also changes accordingly. Further, the weather condition is also a plan change requirement in that the soil improvement process cannot be performed in rainy weather or the like. However, a spare day is set in the operation schedule of the soil improvement machine, and in the case of rainy weather, the schedule is set to slide on this spare day. In some cases, it may not be necessary to make a special input to 55.

As described above, when a new order item and a processing plan based thereon are input, a processing schedule is created (step 5). The processing schedule is created by the computer 55 based on the input items described above. The data includes at least the following.

First, the operation schedule table of the soil improvement machine (in the case where a plurality of soil improvement machines are owned, the operation schedule table for each individual soil improvement machine)
In other words, data on which soil improvement treatment site will be operated and on what schedule will be created. Further, based on the processing capacity and the operating time of the soil improvement machine, the scheduled consumption of the solidified material per day or per unit time (the consumption and the total consumption of each soil improvement machine), the improved soil production and the treatment Data on the remaining amount of the planned soil volume is created. This data is generated for individual soil improvement machines and for all soil improvement machines. Further, the data includes the current total amount of the solidified material and, if the soil improvement machine is actually operating, the supply amount of the solidified material already allocated to the soil improvement material. Furthermore, data on the appropriate amount of solidified material and the appropriate amount of solidified material to be given to each soil machine are also created. Here, the appropriate stock amount of the solidified material is a planned amount to be consumed by all soil improvement machines operating in the next three days.

Therefore, among the various data created as the processing schedule, the data on the total consumption of the solidified material per day and the total stock of the solidified material are used to determine the current stock amount as the proper stock amount, Based on the setting example, it is determined whether or not the amount is smaller than the total amount of the solidified material consumed in three days (step 6). If there is only the stock amount of three days or less, the process related to the stock management subroutine of the solidified material is started (step 7). In addition, at each soil improvement treatment site,
It is determined whether or not an amount of the solidified material equivalent to that consumed in two days is supplied (step 8), and if it is determined that only the amount of the solidified material for two days or less is retained, the solidification is performed. Processing relating to the material supply management subroutine is started (step 9). The inventory management subroutine of the solidified material and the supply management subroutine of the solidified material will be described later.

As described above, each soil improvement machine is operated with the stock and supply amount of the solidified material being appropriate.
Although each soil improvement machine has a predetermined processing capacity, depending on the nature and condition of the soil to be processed, there is a case where the machine only works below the processing capacity. Also, in performing the soil improvement process, the mixing ratio of the soil and the solidified material is set in advance, but depending on the actual state of the soil, etc., the soil improvement is performed with a mixing ratio different from the set mixing ratio. Sometimes. For example, when the moisture content of the earth and sand is high, the amount of the solidifying material must be increased from the set mixing ratio to absorb the moisture into the solidifying material. Therefore, the actual consumption of the solidified material differs from the expected consumption depending on the actual processing executed by each soil improvement machine. Further, for example, in the case of clayey soil and the like, the soil improvement machine may operate only at a soil improvement processing capacity that is equal to or less than the soil improvement processing capacity in the steady state. In particular, in the mixing type soil improvement machine 1, when the rotational load of the paddle mixer 11 without the mixing vessel 10 increases, the processing capacity decreases accordingly. Therefore, the amount of processing per unit time varies depending on the nature and state of the earth and sand to be actually processed.

As described above, the computer 55 sends a data transmission request to each soil improvement machine. This transmission request is made through the communication device 56. When the communication device 54 provided in each soil improvement machine receives a signal related to the transmission request, the controller 40 of each soil improvement machine
At least the data on the consumption of the solidified material and the data on the production of the improved soil are transmitted to the management center CC.
(Step 1)
0).

When predetermined data is obtained from the controller 40 of each soil improvement machine in this way, actual data of each soil improvement machine is created based on this data (step 11). This performance data includes at least the amount of improved soil actually produced by each soil improvement machine and the amount of solidified material actually consumed, and the amount of sediment that has been processed based on these data. It can be obtained by calculation. It should be noted that other signals are received from the controller 40, so that each soil improvement machine fails, etc.
It is also possible to determine whether there is a problem with the operating conditions. In this way, by acquiring data on the operating conditions of each soil improvement machine, it is possible to take measures such as arranging necessary replacement machines.

When the above-described actual data, that is, three data of the production amount of the improved soil, the actual consumption amount of the solidified material, and the processed soil amount is prepared, the daily data written in the processing schedule table is obtained. Of the solidified material (consumption and total consumption of each soil improvement machine) is compared with data on the amount of improved soil produced and the remaining amount of sediment scheduled to be treated (step 12). As a result of the comparison, if there is a difference from the processing schedule table, a change instruction for the processing schedule table is issued, and the processing schedule table is changed (step 13). In some cases, it is necessary to reconsider the plan itself, such as a schedule. In this case, a request is made to review the plan, and based on the request, the plan is rebuilt again, and processing is performed so as to input the plan. In addition, to change this processing schedule,
There is data on the remaining amount of earth and sand scheduled for processing, and this data eventually becomes zero. The fact that this data has become 0 means that the work at the soil improvement processing site concerned has been completed.

According to the above procedure, the stock amount of the solidified material and the supply amount to each soil improvement machine are constantly detected by the computer 55 of the management center CC, and further, the solidified material is processed by signal processing based on these data. Inventory control and supply control to each soil improvement machine can be performed accurately. Therefore,
Hereinafter, the subroutine of inventory management and supply management will be described with reference to FIGS.

As described above, when the request regarding the inventory management of the solidified material is made in step 6, the inventory management subroutine is started, and as shown in FIG. 10, the shortage of the inventory of the solidified material is obtained by the calculation ( Step 20). That is,
The appropriate stock is the total amount of solidified material for three days. The current total amount of solidified material is obtained by adding each time a solidified material is purchased and subtracting the amount actually consumed by the soil improvement machine. These data are listed in the processing schedule.If the difference between the data of the total amount of solidified material and the current total amount of solidified material is less than the set value, it is recognized that the inventory amount is insufficient, and The quantity is calculated. Therefore, an ordering slip of the solidified material corresponding to the stock shortage is created (step 2).
1). When the order slip is created, the order slip can be printed to place an order with the manufacturer of the solidified material. However, the order is sent to the manufacturer by e-mail to execute the order processing (step 22). When this ordering process is executed, it is confirmed whether or not the required amount of solidified material has actually been received (step 23). When the confirmation is obtained, the total amount of solidified material written in the processing schedule is confirmed. The change is made (step 24), and the stock management subroutine ends.

Further, when a request regarding the supply management of the solidified material is made in step 8 described above, a supply management subroutine starts as shown in FIG. This supply management subroutine is based on the amount of solidified material held by each soil improvement machine, and when it is determined that the solidified material for each day is not held in each soil improvement machine, the amount of supply to which soil improvement machine If there is a shortage, that is, the amount of the solidified material shortage of each soil improvement machine is calculated (step 3).
0). Then, a supply procedure of the solidified material is determined, and a solidified material supply procedure table is created (step 31). Arrangement for transporting the solidified material is performed based on this supply procedure. When it is confirmed that the delivery of the solidified material to each soil improvement machine is completed (step 32), the amount of the solidified material held for each soil improvement machine written in the processing schedule is changed (step 32). 33), thereby ending the supply management subroutine.

As described above, based on the estimated consumption amount of the solidified material and the actual consumption amount, the stock amount of the solidified material in the material storage HC and the amount of the solidified material held by each soil improvement machine can be extremely easily determined. It can be managed reliably by a simple method. As a result, it is possible to eliminate the occurrence of the inoperable state of the soil improvement machine due to the shortage of the stock and supply of the solidified material, and thus it is possible to operate the soil improvement machine efficiently.
Further, it is possible to reliably prevent the inventory amount of the solidified material and the possession amount of each soil improvement machine from being excessively deteriorated and deteriorated due to water absorption or the like, and to minimize waste of the solidified material.

Although the above processing is actually performed by a computer, FIG. 12 shows an example of a necessary data input item to the computer and a block diagram of a processing mechanism by the computer. In the figure, reference numeral 60 denotes a required amount of solidifying material, and the required amount of solidifying material is calculated by the required amount of solidifying material based on the received work. For this,
The required amount of solidified material calculating unit 60 includes data on the amount of sediment that needs to be treated at the construction site ordered, that is, data on the amount of treated soil, data on the mixing ratio of the solidified material to the soil,
When the construction period and other data are input, the required amount of the solidified material is calculated.

The required amount of solidified material calculating section 60 calculates the amount of solidified material necessary for the construction work. In order to supply the solidified material and manage the stock, the consumption of the solidified material per unit time is calculated. You have to find the quantity. This data is obtained by the solidified material estimated consumption calculating section 61. For this,
In the solidified material estimated consumption calculating unit 61, the data from the solidified material necessary amount calculating unit 60 and the data relating to the operation schedule of the soil improvement machine that is input are calculated per hour.
An estimated amount of solidified material consumed per hour or the like is calculated.

However, the data obtained from the solidified material estimated consumption calculating section 61 is only an estimated amount and is not accurate. Therefore, in order to obtain a predicted amount that matches the actual condition as much as possible, the calculation result of the solidified material estimated consumption amount calculation unit 61, the solidified material actual consumption measurement unit 42, Data on the amount of solidified material actually consumed by each soil improvement machine and the amount of improved soil actually produced by the improved soil production measuring means 43 are obtained, and the estimated consumption and actual consumption of these solidified materials are obtained. Based on this data, a more accurate predicted consumption amount in units of time (one hour, one day, etc.) is obtained. In addition, when the operating conditions of the soil improvement machine or conditions such as weather fluctuate, correction data relating to those fluctuation factors are also taken in, so that the predicted consumption of the solidified material is made as close as possible to the amount actually consumed in the future. .

In this way, when the predicted consumption of the solidified material according to the actual condition is obtained, the solidified material supply shortage calculation unit 63
In the above, the amount of the solidified material actually supplied to each soil improvement machine is compared with the amount that will be consumed within a period in which the solidified material does not deteriorate or deteriorate, and the shortage thereof is determined. Then, as a result of the calculation by the solidified material supply shortage amount calculating section 63, the solidified material needs to be supplied to the soil improvement machine.
, A necessary replenishment procedure is performed.

On the other hand, based on the calculation result of the solidified material consumption predicted amount calculating section 62, an appropriate stock amount of the solidified material is managed.
For this purpose, the solidification material consumption calculation unit 62 determines the predicted consumption of the solidification material by each soil improvement machine,
Based on this data, a proper stock amount is obtained by the solidified material total consumption calculating unit 65. That is, the total amount of solidified material consumed within a period in which the solidified material does not deteriorate or deteriorate from the point of purchase of the solidified material is determined from the estimated consumption amount of the solidified material per unit time or day by all the operating soil improvement machines. Can be

Then, the calculation result by the solidified material total consumption calculating section 65 and the actual stock amount are compared with the solidified material stock shortage calculating section 6.
If the inventory amount is insufficient as calculated in step 6, the process for ordering the solidified material is performed by the solidified material ordering processor 67.

[0063]

As described above, the present invention has an effect that the supply amount or stock of the solidifying material necessary for the soil improvement processing can be strictly managed without excess or shortage.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a mixing type soil improvement machine as an example of a soil improvement machine that can be used in the present invention.

FIG. 2 is an exploded view of a main part of FIG.

FIG. 3 is an overall configuration diagram of a crushing type soil improvement machine as another example of the soil improvement machine that can be used in the present invention.

FIG. 4 is an explanatory view showing a state where the mixing type soil improvement machine of FIG. 1 is being transported by a trailer.

FIG. 5 is a configuration explanatory view showing a state in which a soil improvement machine used in the present invention is operating at a work site for constructing a highway.

FIG. 6 is a configuration explanatory view showing a state in which the soil improvement machine used in the present invention is operating in a yard.

FIG. 7 is an explanatory view showing a mechanism for transmitting and receiving information for managing a solidified material of a soil improvement machine in the present invention.

FIG. 8 is a destiny diagram showing a state in which the solidified material management according to the present invention is being performed.

FIG. 9 is a flowchart for executing the solidified material management of the present invention.

FIG. 10 is a flowchart for performing inventory management of the solidified material of the present invention.

FIG. 11 is a flowchart for managing supply of a solidified material according to the present invention.

FIG. 12 is a block diagram of a computer-based processing unit including the input items to the computer when executing the solidified material management of the present invention using the program of the computer.

[Explanation of symbols]

1,20, MM Soil improvement machine 4,23 Mixed material supply section 5,24 Mixing means 6,25 Improved soil discharge section 8,27 Solidified material hopper 40 Controller 42 Solidified material actual consumption measuring means 43 Improved soil production measuring means 54, 56 Communication device 55 Computer 60 Solidification material required amount calculation unit 61 Solidification material estimated consumption calculation unit 62 Solidification material consumption prediction amount calculation unit 63 Solidification material shortage calculation unit 65 Solidification material total consumption calculation unit 66 Solidification material stock shortage Quantity calculation department CC management center HS Material storage area FC Flexible container

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tetsushiro Miura 650 Kandamachi, Tsuchiura City, Ibaraki Prefecture Inside the Tsuchiura Plant of Hitachi Construction Machinery Co., Ltd. 2D040 AB07 CA01 CA03 CD07 EB04 FA00

Claims (16)

[Claims] 1. A system for managing a supply amount of a solidification material to be supplied to a soil improvement machine for producing an improved soil by mixing a solidification material with earth and sand, comprising: a soil improvement treatment capacity of the soil improvement machine; A solidified material estimated consumption calculating means for calculating the solidified material estimated consumption amount at predetermined time intervals from the operation schedule; and a solidified material actual amount for measuring the amount of solidified material at predetermined time intervals actually consumed by the soil improvement machine. Consumption measuring means, based on the amount of solidified material estimated by the solidified material estimated consumption calculating means and the amount of solidified material at predetermined time intervals actually consumed by the soil improvement machine, Means for calculating a predicted consumption of the solidified material at predetermined time intervals by the machine; and a means for calculating a predicted consumption of the solidified material at each predetermined time interval. And determine the amount of solidified material being,
A solidification material management system for soil improvement, wherein the system is configured to manage so as to determine a supply amount of a solidification material to be supplied to the soil improvement machine. 2. The management of the supply amount of the solidified material is performed by an information processing device installed at a predetermined position, and the data on the actual consumption of the solidified material by the solidified material actual consumption measuring means of the soil improvement machine is: The solidified material management system for soil improvement according to claim 1, wherein the system is transmitted to the information processing device by communication means. 3. The communication means is a wireless communication means, wherein the wireless communication means transmits at least data relating to the production amount of the improved soil in addition to the actual consumption amount of the solidified material. The solidification material management system for soil improvement according to claim 2, wherein 4. A plurality of soil improvement machines for producing an improved soil by mixing a solidified material with earth and sand are operated at a plurality of soil improvement treatment sites, and inventory management of the solidified material consumed at each soil improvement site is performed. In a system for intensively performing in the management center, the scheduled soil amount to be processed at each of the soil improvement treatment site,
A required amount of solidified material calculating means for calculating the required amount of solidified material based on the mixing ratio of the soil and solidified material to be processed at each of these soil improvement treatment sites, and the soil improvement processing capacity of each of the soil improvement machines and A solidified material estimated consumption calculating means for calculating an estimated solidified material consumption amount at predetermined time intervals from an operation schedule of the soil improvement machine, and an amount of solidified material at predetermined time intervals actually consumed by each of the soil improvement machines. Means for measuring the actual consumption of the solidified material, which is provided at each of the soil improvement machines and the management center, and measures the actual consumption data of the solidified material measured by at least the actual consumption of the solidified material of each soil improvement machine. Communication means for transmitting to the management center; actual consumption data of the solidified material by each soil improvement machine obtained by the communication means; and solidified material estimated consumption by the solidified material estimated consumption calculating means. A solidified material total consumption calculating means for calculating a predicted total consumption of the solidified material at predetermined time intervals based on the amount; and a solidified material predicted total consumption at each predetermined time interval within a period in which the solidified material does not deteriorate. A solidified material management system for soil improvement, wherein the amount of the solidified material consumed in the soil is determined and the amount of the solidified material is managed as an appropriate stock amount. 5. A communication system according to claim 1, wherein said communication means transmits a variation factor at the time of the soil improvement processing in each of said soil improvement machines, and is configured to be able to correct the information based on information on the variation factor in each soil improvement machine. Claim 4
The solidification material management system for soil improvement described. 6. In order to control a supply amount of a solidification material to be supplied to a soil improvement machine that manufactures an improved soil by mixing a solidification material with earth and sand, a planned soil amount to be treated by the soil improvement machine and The required amount of solidified material is calculated from the mixing ratio of the solidified material to the scheduled soil amount, and the estimated solidified material consumption at predetermined time intervals is calculated from the soil improvement processing capacity of the soil improvement machine and its operation schedule. Then, with respect to the consumption amount of the solidified material estimated in this way, information on the amount of the solidified material at each predetermined time interval actually consumed by the soil improvement machine is obtained, and the actual The actual amount of solidified material consumed at predetermined time intervals is calculated, and from the actual amount of solidified material consumed at each predetermined time interval and the estimated amount of solidified material consumed, the amount of solidified material consumed within a period in which the solidified material does not deteriorate is calculated. Calculate this amount of solidified material before Soil improvement for solidifying material management method characterized by managing to determine the solidifying material amount to be supplied to the soil improvement machine. 7. The management of the solidification material supply amount is performed by a management center, and the amount of the solidification material actually consumed by the soil improvement machine at predetermined time intervals is communicated from the soil improvement machine to the management center by communication means. 7. The method for managing a solidified material for improving soil quality according to claim 6, wherein the transmitted material is transmitted to the soil. 8. The method according to claim 6, wherein the operation schedule of the soil improvement machine is corrected according to weather conditions. 9. A plurality of soil improvement machines for producing an improved soil by mixing a solidified material with earth and sand are operated at a plurality of soil improvement treatment sites, and inventory management of the solidified material consumed at each soil improvement site is performed. In the method for performing intensively in the management center, the planned soil amount to be processed at each of the soil improvement treatment site,
The required amount of solidified material is calculated based on the mixing ratio of the soil and solidified material to be processed at each of these soil improvement processing sites, and the soil improvement processing capacity of each soil improvement machine and the operation schedule of each soil improvement machine are calculated. And the estimated solidified material consumption at each predetermined time interval is calculated from the calculated solidified material consumption at each predetermined time interval. Calculate the total consumption, calculate the amount of solidified material consumed during the period in which the solidified material does not deteriorate from the solidified material total consumption at each predetermined time interval, and manage this solidified material amount as an appropriate inventory amount A method for managing a solidified material for soil improvement. 10. The method for managing a solidified material for improving soil quality according to claim 9, wherein when a shortage occurs from the proper stock amount of the solidified material, the shortage is ordered. 11. The variation factor includes an actual operation time of the soil improvement machine, an actual solidification material consumption at predetermined time intervals,
10. The method for managing a solidified material for improving soil quality according to claim 9, wherein the amount is at least one of the actual amount of improved soil produced at predetermined time intervals. 12. The variable factor is obtained by communication means from the soil improvement machine.
The method for managing solidified material for soil improvement described in the above. 13. The method for managing a solidified material for soil improvement according to claim 11, wherein the variation factor is a weather condition of a soil improvement treatment site. 14. The soil improvement according to claim 11, wherein the variation factor is a variation in a mixing ratio of the solidified material based on a variation in the water content of the soil to be treated. Solidification material management method. 15. The method according to claim 6, wherein the solidified material is mainly composed of lime, and the predetermined time interval is based on time. Solidification material management method for soil improvement. 16. The method according to claim 6, wherein the solidifying material is mainly composed of cement, and the predetermined time interval is based on days or weeks.
The method for managing a solidified material for soil improvement according to any one of the above.