Structure demolition plan formulation method, demolition plan formulation program, and demolition plan formulation device

Abstract

To provide a demolition plan formulation method for classifying and collecting iron scrap which is generated in demolition of a structure according to a material and a source of the iron scrap, for obtaining iron scrap which contributes to high quality steel manufacturing in an electric furnace method and achieving the obtaining of the iron scrap.SOLUTION: A demolition plan formulation method is configured to: acquire structure information including steel material position information and steel material steel type information of steel material used in a structure; acquire collection classification information being information which includes a collection classification item corresponding to the steel type information; associate each collection classification item of the steel material used for the structure with position information for creating mapping information, on the basis of the structure information and the collection classification information; acquire collection processing information being information related to a storage space or a transport destination of the scrapped steel material for each collection classification item, when the structure is demolished; form a demolition plan for demolition of the structure on the basis of the mapping information and the collection processing information; and output the formed demolition plan.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dismantling plan formulation method, a dismantling plan formulation program, and a dismantling plan formulation device for a structure, particularly a structure including a steel product. [Background technology]

[0002] To maintain and improve urban functions, it is necessary to demolish buildings, facilities, bridges, and other structures and replace them with modern structures, a process known as scrap-and-build. This process generates a large amount of steel scrap. In response to the societal demands of the SDGs, there is an increasing need to reuse the resulting steel scrap and recycle it as a new resource. Several proposals have been made to efficiently reuse the steel scrap generated during the demolition of structures.

[0003] Patent Document 1 proposes a demolition work plan creation assistance method that can shorten the time required to create a demolition plan and ensure a certain level of accuracy regardless of the planner.

[0004] Patent Document 2 proposes a waste disposal system that can predict the amount of waste generated by demolition and carry out planned demolition treatment. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-252885 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-343456 Summary of the Invention [Problem to be solved by the invention]

[0006] Scrap iron, valuable materials (copper, aluminum, stainless steel, etc.), and waste (refractories, dust, etc.) generated during the demolition of structures such as buildings and equipment are separated and recycled as raw materials. At demolition sites, demolition work is often carried out as quickly as possible with as little effort as possible, and while valuable materials and waste are separated and managed, scrap iron is often collected as a single material. For this reason, scrap iron is collected in a mixed state of various iron materials and reused as a steel resource.

[0007] On the other hand, while steel scrap with a high bulk density and few attachments, such as steel beams, can be identified for its material and origin, general steel scrap is collected as a whole, and therefore the origin of attachments, the composition of the material, and the manufacturing process (blast furnace steel, electric furnace steel, etc.) are often unknown. Therefore, when recycled, it often contains attachments and steel scrap containing elements (tramp elements) that cannot be removed during the refining process, and is reused as raw materials for low-grade steel products (reinforced bars, structural steel, etc.) with relatively loose compositional standards. A so-called cascade-type resource recycling system is being implemented. Repeated cascade-type resource recycling increases the concentration of tramp elements in the collected steel scrap, raising concerns about an increase in steel scrap that is difficult to reuse.

[0008] Furthermore, due to the recent need to combat global warming, attention is being paid to the electric furnace method, which produces less CO2, and in order to produce high-quality steel using this method, there is a need to secure iron scrap whose material and origin can be identified.

[0009] Therefore, the present invention aims to solve the problem of how to secure iron scrap that can be used to manufacture high-quality steel using the electric furnace method by classifying and recovering iron scrap generated during the demolition of structures according to their material properties and origin, and to provide a method for formulating a demolition plan that will achieve this. [Means for solving the problem]

[0010] In order to achieve the above object, the present inventors have conducted extensive research and have obtained the following findings.

[0011] (a) Steel can often be classified as either blast furnace or electric furnace based on its specifications. Generally, steel produced by the blast furnace method contains fewer tramp elements, while steel produced by the electric furnace method contains more tramp elements because it uses scrap iron as its raw material. Therefore, when formulating a demolition plan for a structure, it is a good idea to first check the steel type for each part of the structure using design drawings, etc., and then formulate a demolition plan that takes into account recovery after demolition. It is advisable to classify the steel type as at least whether it is produced by the blast furnace method (blast furnace steel) or the electric furnace method (electric furnace steel).

[0012] (stomach) If a blueprint of the structure is available, the location and type of steel can be identified from the steel type indicated on the blueprint. If the blueprint does not indicate the type of steel, it is possible to determine whether the steel is blast furnace or electric furnace steel from the steel's form (thick plate, thin plate, pipe, structural steel, reinforcing bar, etc.) and the construction date of the structure. Furthermore, samples can be collected on-site and analyzed using elemental analysis equipment (such as a handheld X-ray fluorescence analyzer) to determine whether the steel contains tramp elements and their content. If a blueprint is not available, a 3D drawing of the structure can be created and the steel type information of the steel can be overlaid on it to obtain a diagram equivalent to the blueprint. In this way, the location and type of steel within the structure can be identified.

[0013] (cormorant) When formulating a dismantling plan, it is possible to formulate an optimal plan by taking into consideration the dismantling location, the storage location of recovered iron scrap (including valuables and waste), and the dismantling procedure.By optimizing the dismantling plan in this way, it is possible to consistently manage the processes of dismantling, collection, sorting, and recycling, and it has been found that consistent work efficiency can be achieved.

[0014] The present invention has been made based on the above findings, and the gist of the present invention is as follows.

[0015] [1] A method for formulating a demolition plan for a structure to be demolition, comprising: a structure information acquisition step of acquiring structure information including location information of steel materials used in the structure and steel type information of the steel materials; a collection classification information acquisition step of acquiring collection classification information including collection classification items corresponding to the steel type information; a mapping information creation step of creating mapping information by associating the location information with each of the collection classification items of the steel materials used in the structure based on the structure information and the collection classification information; a collection and processing information acquisition step for acquiring collection and processing information including information on a storage location and a transport destination for each collection classification item when dismantling the structure; a dismantling plan formulation step of formulating a dismantling plan for the structure based on the mapping information and the recovery processing information; and an output step of outputting the formulated dismantling plan; A method for formulating a demolition plan for a structure, comprising: [2] The method for formulating a demolition plan for a structure described in [1] above includes, after the demolition plan formulation step, a demolition plan feasibility determination step for determining whether or not there are any problems in implementing the formulated demolition plan, and if it is determined that there are any problems, reviewing and obtaining one or both of the recovery processing information and the recovery classification information. [3] The recovery classification items include: (a) Blast furnace steel and electric furnace steel, (a) Ordinary steel and special steel A method for formulating a demolition plan for a structure described in [1] or [2] above, which includes one or both of the following. [4] A method for formulating a demolition plan for a structure described in any one of [1] to [3] above, wherein the steel type information includes the shape of the steel material, and the structure information includes information regarding the year of construction of the structure. [5] The location information of the steel material and the steel type information of the steel material (a) Obtained from drawings of said structure; (a) Creating a 3D drawing of the structure and writing and acquiring the steel type information and the position information of the steel material; or (c) obtaining location information of the steel material and steel type information of the steel material based on information obtained by collecting and analyzing samples of the steel material from the structure; The method for formulating a demolition plan for a structure described in any one of [1] to [4] above, which is obtained by any one of the following methods. In addition, when creating a 3D drawing of the structure, this includes measuring the structure through surveying (such as laser surveying) using either or both of a 3D scanner and a UAV such as a drone, and creating a 3D drawing. [6] The method for formulating a demolition plan for a structure according to any one of the above [1] to [5], wherein the demolition plan includes a procedure for dismantling the structure, a storage location for the steel materials after dismantling, and a transportation procedure. [7] A demolition plan development program for a structure to be demolitioned, Acquire structure information including location information of steel materials used in the structure and steel type information of the steel materials; Acquire collection classification information, which is information including collection classification items corresponding to the steel type information; creating mapping information by associating the location information with each of the collection classification items of the steel materials used in the structure based on the structure information and the collection classification information; When dismantling the structure, collection and processing information is acquired, which is information about the storage location and transport destination of the dismantled steel materials for each collection classification item. Developing a demolition plan for the structure based on the mapping information and the recovery and processing information; and outputting the formulated dismantling plan; A program for formulating a demolition plan for a structure, which program causes a computer to execute processing. [8] A program for formulating a demolition plan for a structure as described in [7] above, which includes a demolition plan feasibility determination step for determining whether there are any problems in the execution of the formulated demolition plan, and if it is determined that there are any problems, reviewing and obtaining one or both of the recovery processing information and the recovery classification information. [9] A demolition plan formulation device for a structure to be demolition, a structure information acquisition unit that acquires structure information including location information of steel materials used in the structure and steel type information of the steel materials; a collection classification information acquisition unit that acquires collection classification information that is information including collection classification items corresponding to the steel type information; a mapping information creation unit that creates mapping information by associating the location information with each of the collection classification items of the steel materials used in the structure based on the structure information and the collection classification information; a collection and processing information acquisition unit that acquires collection and processing information, which is information about storage locations and transport destinations of the dismantled steel materials for each collection classification item, when dismantling the structure; a dismantling plan formulation unit that formulates a dismantling plan for the structure based on the mapping information and the recovery and processing information; an output unit that outputs the formulated dismantling plan; A structure demolition planning device comprising:

[10] The structure demolition plan formulation device according to [9] above, including a demolition plan feasibility determination unit that determines whether or not there are any problems in implementing the formulated demolition plan. [Effects of the Invention]

[0016] According to the present invention, iron scrap generated during the demolition of structures can be classified and recovered according to material and origin, making it possible to secure more iron scrap than ever before that can be used to manufacture high-quality steel using the electric furnace method. [Brief explanation of the drawings]

[0017] [Figure 1]1 is a flowchart of a disassembly plan creation method executed by a disassembly plan creation device according to an embodiment of the present invention. [Figure 2] 1 is a configuration diagram of a dismantling plan formulation device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be described based on one embodiment of the present invention (hereinafter simply referred to as the present invention), focusing on a dismantling plan formulation method, while incorporating a dismantling plan formulation device and a dismantling plan formulation program. However, the technical scope of the present invention is not limited to these embodiments.

[0019] [Structure] The term "structure" refers to a structure containing steel materials that are to be demolished. The form of the structure is not particularly limited. For example, any structure that uses steel products (steel materials) and is to be demolished, such as buildings (not limited to buildings with steel frame structures but also including buildings made of reinforced concrete), bridges, machinery and equipment, chemical plants, ships, and transportation machinery, is included in the structures that are the subject of the present invention.

[0020] [Structure information] Structure information includes at least the location information of the steel materials contained in the structure and the steel type information of the steel materials. Steel location information is information about the location of any steel material within the structure. Steel type information is information about the type of steel material. Therefore, steel location information and steel type information are related (linked) to each other.

[0021] Steel position information is information about the part (position) of a structure in which the target steel is located. There are no particular limitations on how the steel position is defined. For example, it may be defined using any Cartesian coordinate system (for example, a three-dimensional Cartesian coordinate system is assumed with a point in the three-dimensional space containing the structure as the origin, and the structure is shown in the three-dimensional coordinate system), or it may be defined by part (for example, rolls, housings, bearings, etc. in a rolling mill, or vibrating screens, hoppers, etc. in a screening device) or by location (for example, the west staircase on the third floor of a building, or the girder of a railway bridge).

[0022] There are no particular limitations on the method of classifying steel types used as steel type information for steel materials. It is advisable to determine the steel type information for steel materials in accordance with the classification of iron scrap generated by the demolition of structures. For example, the "name of steel material" specified in the JIS standard (e.g., "rolled steel material for welded structures") may be used as steel type information, or the "steel material code" (e.g., "SM400A") may be used as steel type information.

[0023] The method for acquiring the structure information is not particularly limited. For example, the structure information can be acquired by the following method. (a) Identify the type of steel from the drawings of the structure. If the drawings do not indicate the type of steel, the type can be determined from the form of the steel (thick plate, thin plate, pipe, shaped steel, reinforcing steel bar, etc.) and the construction date of the structure. (a) Creating a 3D drawing of the structure and specifying the steel type and location information of the steel material. Creating a 3D drawing also includes measuring the structure using a 3D scanner and / or a drone or other unmanned aerial vehicle (UAV) (laser surveying, etc.) to create 3D data (3D images). (c) Identifying the location information of the steel material and the steel type information of the steel material based on information obtained by analyzing the steel material from the structure (for example, information obtained by taking and analyzing samples of the steel material to be demolished, or information obtained by analyzing the steel material to be demolished directly on site using a handheld analyzer (for example, a handheld X-ray fluorescence analyzer, etc.)). Note that there are no particular restrictions on the means of analyzing the steel material.

[0024] [Recovery Classification Information] The collection classification information is information about the collection and classification of scrap iron generated by the dismantling of structures (collection classification), and mainly includes collection classification items. It is preferable to select collection classification items with reuse in electric furnaces in mind. For example, the following items could be major collection classification items. (a) Blast furnace steel and electric furnace steel (a) Ordinary steel and special steel (c) Non-ferrous products and valuables (D) Waste

[0025] (a) Blast furnace steel and electric furnace steel Blast furnace steel is a steel product made by extracting iron from iron ore using the blast furnace method, and then refining it to control its composition, so its composition and origin are clearly defined. Therefore, scrap steel from blast furnace steel can be used as a raw material for producing high-quality steel using electric furnaces. On the other hand, electric furnace steel is a steel material produced primarily from iron scrap, and since it is not possible to trace the type of iron scrap used as a raw material, the constituent elements and origin of many steel products are unclear. As a result, electric furnace steel often contains tramp elements, and their concentrations are often high. Since the impurity composition of electric furnace steel is unknown, repeated recycling of the scrap may result in the tramp elements becoming concentrated, so the amount used must be limited in order to use it as a raw material for producing high-quality steel.

[0026] Information regarding the relationship between the steel grade of a steel product and the collection classification item (i.e., information regarding the linkage between the steel grade and the collection classification item) is also included in the collection classification information. When classifying collection items, it is desirable to classify each steel product into actual blast furnace steel and actual electric furnace steel, but this is not necessarily realistic. This is because there are steel types that are produced by both the blast furnace method and the electric furnace method. Therefore, for example, steel types that are mainly produced by the blast furnace method can be classified as blast furnace steel, and steel types that are mainly produced by the electric furnace method can be classified as electric furnace steel.

[0027] Even if electric furnace steel is mixed with steel classified as blast furnace steel, most of the iron scrap in this category is produced using the blast furnace method, and even though it is electric furnace steel, it is subject to the same quality control as blast furnace steel, so recycling alone does not result in the concentration of tramp elements in the iron scrap. Similarly, even if blast furnace steel is mixed with steel classified as electric furnace steel, there is no particular problem because blast furnace steel has fewer tramp elements. When classifying blast furnace steel and electric furnace steel, for example, the following steel types are classified. Blast furnace steel (steel types mainly produced using the blast furnace method) Deep drawing steel sheet, thin high-grade steel sheet (high-tensile steel sheet) Surface-treated steel sheet Hot-rolled steel plates, thick plates, steel pipes cold rolled thin steel sheet Wire rods (other than rebar, especially high-carbon wire rods such as steel cord) Electric furnace steel (steel types mainly produced by the electric furnace method) Shaped steel steel bar Wire rod (reinforcing bar) Rolled steel for machine structures General structural rolled steel

[0028] (a) Ordinary steel and special steel Special steel is a steel material used for special purposes, with special elements added to adjust the composition, and has special functions such as heat resistance and corrosion resistance, allowing it to be used in environments that ordinary steel cannot withstand. Some special steels are produced using the blast furnace method, which requires strict composition control, but some are also produced using the electric furnace method, as they are produced in small lots. Special steels produced using the electric furnace method also have strict composition control.

[0029] Examples of special steels include stainless steel with increased Ni and Cr content for improved corrosion resistance, Invar alloy, a Ni-Fe alloy containing 36% Ni for an extremely low thermal expansion coefficient, spring steel specifically designed for springs, piano wire, etc. The main examples of special steels are shown below. Carbon steel for mechanical structures: S10C, S45C, etc. (Carbon steel for machine structural use may be classified as ordinary steel. The classification should be decided appropriately according to the recovery classification plan.) Alloy steel for machine structures: SCr (chrome steel), SCM (chrome molybdenum steel), etc. · Steel for boilers and pressure vessels: SB (carbon steel), SCMV (chrome molybdenum steel), etc. Tool steel: carbon tool steel (SK), alloy tool steel (SKD), high-speed steel (SKH), etc. Special purpose steel: spring steel (SUP), bearing steel (SUJ), free cutting steel (SUM), Stainless steel (SUS), Invar alloy, piano wire (SWRS), etc.

[0030] On the other hand, ordinary steel is positioned in contrast to special steel and is a steel material used for general purposes. Its constituent elements include carbon, silicon, manganese, phosphorus, sulfur, etc., and the composition is controlled according to the application and specifications. For example, in applications requiring performance such as workability in press forming and surface properties, it is necessary to minimize the inclusion of impurity elements such as copper and tin. In the case of the blast furnace method, the inclusion of impurity elements is controlled and suppressed, but when ordinary steel is produced using the electric furnace method, the performance and applications are limited due to the significant influence of impurity elements contained in the raw material scrap.

[0031] When classifying ordinary steel and special steel, as with the case of blast furnace steel and electric furnace steel mentioned above, it is not necessarily realistic to make a strict classification, and it is sufficient to classify steel types that are mainly considered ordinary steel as ordinary steel, and steel types that are mainly considered special steel as special steel.

[0032] Furthermore, four classifications may be set: blast furnace steel, electric furnace steel, ordinary steel, and special steel. That is, there are four classifications: blast furnace steel and ordinary steel, blast furnace steel and special steel, electric furnace steel and ordinary steel, and electric furnace steel and special steel. In this case, as with the blast furnace steel and electric furnace steel described above, strict classification is not necessarily realistic, and special steels that are mainly produced using the blast furnace method may be classified as "blast furnace steel and special steel," for example.

[0033] The more detailed the classification of collected steel scrap, the greater the degree of freedom in recycling. However, the cost of management due to classification (including the labor and cost of storing the scrap and further classifying the scrap) increases. Therefore, the classification of generated steel scrap is an important factor in formulating a dismantling plan. For example, it is recommended to decide by taking into account the market price of each steel type of steel scrap, the labor and cost involved in the classification, and infrastructure costs such as the work site.

[0034] (c) Non-ferrous products, valuables, and specially controlled waste Non-ferrous products and valuables refer to metal products other than iron (non-ferrous metal products) and those with market value. For example, non-ferrous products include copper products, aluminum products, and products containing rare metals. These non-ferrous products can be used as raw materials for recycling products and have market value in their own right, so they are generally collected and reused separately from iron scrap. If necessary, non-ferrous valuables can also be collected by non-ferrous metal, such as copper products or aluminum products. In this case, it is a good idea to set the target non-ferrous metal products as collection classification items. Valuable materials include electrical equipment such as electric motors and pumps that can be reused. Specially controlled waste includes asbestos and other materials that cannot be reused but require special management. These materials are also separated and managed according to the established classification items.

[0035] (D) Waste Waste is a general term for materials that are discarded after collection, such as rubble, waste plastic, refractory materials, and dust that are difficult to recycle. Therefore, waste includes materials left over after collection of scrap iron, non-ferrous products, and valuables, and must be properly disposed of in accordance with the Industrial Waste Manifesto System. However, even if the material is not metal, if it can be collected separately and reused, it should not be classified as waste, but should be included in the collection classification.

[0036] [Mapping Information] Mapping information is information that associates location information for each recovery classification of steel materials used in a structure based on structure information and recovery classification information. Therefore, it is information that links the location within the structure with the recovery classification item for each steel material. Mapping information makes it possible to grasp the amount of steel material at each location in the structure using a mesh that corresponds to the recovery classification item. For example, based on a drawing of the structure, it is possible to recognize positions as color-coded according to the recovery classification item.

[0037] [Collection and processing information] The recovery processing information is information about the transportation process, such as the storage location and transport destination for each recovery classification of steel generated when a structure is demolished. For example, it includes information that identifies the storage location (temporary storage location) for recovered steel scrap at the structure demolition site for each recovery classification. In addition, if the recovered steel scrap needs to be further classified for each recovery classification, information about the sorting work site is included. In addition, it includes information about the parking location of trucks and other vehicles that transport the recovered steel scrap from the temporary storage location, as well as information about the transport destination.

[0038] The recovery and processing information also includes constraints that are prerequisites for formulating a dismantling plan, evaluation indices related to optimization (optimization evaluation indices) and their reference values.

[0039] There are no particular restrictions on the constraints, as long as they are the constraints that should be taken into consideration when formulating a plan. Examples of constraints include an upper limit on demolition costs, restrictions on demolition work time (such as only being able to work during the day or only on weekdays), and restrictions on the number of workers and worker skills.

[0040] The optimization evaluation index is determined based on what is prioritized and what is optimized in the formulation of the demolition plan, and is an index for evaluating that optimization. Therefore, it varies depending on the needs of the demolition work, and is not particularly limited. For example, if the focus is on the separate collection of iron scrap, it is recommended to formulate the plan so that collection can be carried out efficiently in accordance with the collection classification items. Furthermore, if the goal is to minimize demolition time, for example, it is recommended to formulate the demolition time as an evaluation index. There are many other factors that can serve as optimization evaluation indexes, such as demolition costs, and these can be selected or combined to formulate the demolition plan as optimization evaluation indexes. The reference value is a standard value used to determine whether the optimization evaluation index is at a satisfactory level. It is recommended to set it in advance and include it in the collection processing information together with the optimization evaluation index.

[0041] [Demolition Plan] A demolition plan can be formulated that includes the dismantling procedures for the structure to be dismantled, the storage location for the steel after dismantling, and the transportation procedures, based on mapping information, which links the location of steel within a structure for each collection classification, and collection and processing information, which includes information on how to transport and process the recovered steel scrap, as well as evaluation indexes and constraints related to optimization. In other words, a demolition plan is a plan that determines the procedures for dismantling that will optimally recover and transport the generated steel scrap according to the collection classification.

[0042] [Demolition plan feasibility assessment] It is determined whether the formulated dismantling plan has any problems in terms of execution. The method of determination is not particularly limited. For example, this applies when the optimization evaluation index is not a predetermined reference value (for example, a satisfactory level). More specifically, this applies when, for example, the work time significantly exceeds the estimated time, which is a predetermined reference value. This is also because conditions that were not taken into account when the dismantling plan was formulated may arise after the plan is formulated. In such cases, it is advisable to determine that there are problems in terms of execution, review the conditions, and formulate a new dismantling plan.

[0043] If it is determined that there are problems with execution, the process returns to the dismantling plan formulation flow, where the input conditions are changed and reconsidered. Since the input conditions can be the collection classification information and the collection processing information, which are prerequisites for dismantling plan formulation, at least one of the pieces of information can be reviewed and the dismantling plan can be re-formulated. For example, if the condition is information related to collection classification, it can be fed back to the collection classification information, the collection classification information can be newly set, and a new dismantling plan can be formulated. Furthermore, if the condition is information related to collection processing, it can be fed back to the collection processing information, the collection processing information can be newly set, and a new dismantling plan can be formulated. Of course, both of these can also be fed back at the same time to formulate a new dismantling plan. This increases the feasibility of the dismantling plan, making it possible to formulate a feasible dismantling plan. Repeating this process allows for the formulation of an optimal dismantling plan.

[0044] [output] The obtained demolition work plan should be output in a format that can be recognized by the relevant parties. There are no particular limitations on the output format. It may be output to the screen of a computer that serves as a terminal at the demolition site via a communication line, or it may be stored in the memory of a computer at the demolition site and the information output to the screen. Of course, it may also be printed out on paper and carried by the relevant parties. There are various other output formats available, so it is advisable to select an appropriate format.

[0045] [The process for formulating a demolition plan] A series of steps in the dismantling plan formulation method according to the present invention will be described with reference to the flowchart of FIG. 1 and the block diagram of the dismantling plan formulation device of FIG.

[0046] [Structure information acquisition step] In the structure information acquisition step, structure information including location information of steel materials used in the structure to be demolished and information on the steel type of the steel materials is acquired (S101). For example, in the demolition plan formulation device (e.g., a computer), structure information (steel type information, location information, etc.) is input from the outside via a communication line, processed by structure information acquisition unit 21, and stored as data in memory unit 12.

[0047] [Recovery classification information acquisition step] In the collection classification information acquisition step, collection classification information relating to iron scrap and the like generated by dismantling is acquired (S102). For example, on a computer, the collection classification information is input from outside via a communication line or the like, processed by the collection classification information acquisition unit 22, and stored as data in the storage unit 12. The collection classification information acquisition step and the structure information acquisition step may be performed in reverse order, or may be performed in parallel. It is sufficient that the collection classification information and structure information are acquired before the next mapping information is created.

[0048] [Mapping information creation step] Based on the already acquired structure information and collection classification information, location information is associated with each collection classification of steel materials used in the structure, and mapping information is created (S103). For example, information (mapping information) linking collection classification items with location information is created from the steel type information and collection classification information in the structure information. On the computer, for example, the structure information and collection classification information stored in the memory unit 12 are processed by the mapping information creation unit 23, and the resulting mapping information is stored as data in the memory unit 12. Although the mapping information is data, the mapping information creation unit 23 can convert it into a form that can be recognized by humans, and this can be output from the output unit 14. The output form of the mapping information is not particularly limited. Possible output forms include, for example, color-coding each collection classification item on a drawing of the structure, or showing the amount of each collection classification item present in each part of the structure (e.g., floor of a building). There are no particular limitations on the means for creating mapping information, and existing CAD software, map software, or proprietary software may be used.

[0049] [Recovery processing information acquisition step] In the recovery and processing information acquisition step, recovery and processing information such as information on the storage location of iron scrap generated by dismantling and optimization evaluation indexes is acquired (S104). For example, on a computer, the recovery and processing information is input from an external device via a communication line or the like, processed by the recovery and processing information acquisition unit 24, and stored as data in the storage unit 12. The recovery and processing information acquisition step does not need to be performed after the mapping information creation step, as long as it is prepared before the dismantling plan is formulated. Therefore, the recovery and processing information acquisition step may be performed in parallel with the structure information acquisition step or the recovery classification information acquisition step, or the order may be reversed. Preferably, since it is thought that storage locations for generated iron scrap and the like will often be considered based on mapping information, the recovery and processing information acquisition step should be performed after the mapping information creation step.

[0050] [Demolition planning step] A dismantling plan for the structure to be dismantled is formulated based on the mapping information and recovery processing information that have already been created (S105). On the computer, for example, the mapping information and recovery processing information stored in the memory unit 12 are processed by the dismantling plan formulation unit 25, and the resulting dismantling plan is stored in the memory unit 12 as data. There are no particular limitations on the means for creating the disassembly plan. Existing CAE software, process management software, or the like may be applied, or proprietary software may be applied.

[0051] [Steps to determine feasibility of demolition plan (determine whether there are any problems with the demolition plan)] If it is determined that the formulated dismantling plan has execution problems, the process returns to the dismantling plan formulation flow, and the input conditions are changed and reconsidered (S106). The input conditions can be the recovery classification information and the recovery processing information, which are the prerequisites for dismantling plan formulation. Therefore, the feedback flow differs depending on which information is revised (S108). For example, if the recovery classification items are overly subdivided, resulting in a high dismantling workload, the recovery classification items can be revised and re-executed from the recovery classification information acquisition step (S102) to formulate the dismantling plan. Furthermore, if, for example, a shortage of recovery item storage space causes the transportation of scrap iron or other materials to become a process bottleneck, the information on the recovery item storage space can be revised and re-executed from the recovery processing information acquisition step (S104) to formulate the dismantling plan. Furthermore, for example, if the optimization evaluation index for dismantling plan formulation is changed (e.g., if a priority is changed from time to cost reduction), the optimization evaluation index can be revised and re-executed from the recovery processing information acquisition step (S104). If there is a change in the structural information of the structure to be demolished, the premise will change and the demolition plan will have to be formulated from scratch. On the computer, for example, the optimization evaluation index stored in the memory unit 12 and the formulated dismantling plan are processed by the dismantling plan feasibility determination unit 26, and the obtained optimization evaluation index is compared with a predetermined reference value to determine whether there are any problems with the dismantling plan.

[0052] Output Step In the output step, the formulated demolition plan is output in a form that can be understood by humans. The demolition plan is stored as data, but the demolition plan formulation unit 25 converts it into a form that can be understood by humans, and this can be output from the output unit 14. The output form of the demolition plan is not particularly limited. Possible output forms include, for example, a process chart with a time axis, or a work standard showing the demolition work procedures. It is advisable to display the plan on a screen optimized for each worker. The output format is not particularly limited. Preferably, it is displayed on the screen of a mobile terminal carried by the worker. In this case, the output unit 14 outputs in data format via an external communication line, and the other party (worker) operates the terminal screen. Of course, it may also be output on paper.

[0053] [Dismantling planning device] The dismantling plan formulation device executes the above-described dismantling plan formulation method using a device, and its content and functions are the same as those of the dismantling plan formulation method. Therefore, the detailed explanation will be based on the above-described dismantling plan formulation method, and the explanation will focus on the characteristics of the device.

[0054] Figure 2 is a block diagram showing an example of the configuration of dismantling plan formulation device 10. Dismantling plan formulation device 10 is composed of a communication unit 11, which serves as an interface with the outside world, an input unit 13, an output unit 14, a processing unit 20, and a storage unit 12, which is composed of memory for storing information (data) processed by the processing unit and temporary memory used when processing by the processing unit. Processing unit 20 is composed of a structure information acquisition unit 21, a recovery classification information acquisition unit 22, a mapping information creation unit 23, a recovery information acquisition unit 24, and a dismantling plan formulation unit 25. It may also be equipped with a dismantling plan feasibility determination unit 26, if necessary.

[0055] The communication unit 11 has a wired communication interface circuit such as Ethernet (registered trademark), and communicates with a server (not shown) via, for example, a LAN.

[0056] The storage unit 12 includes, for example, at least one of a semiconductor storage device, a magnetic tape device, a magnetic disk device, and an optical disk device. The storage unit 12 stores an operating system program, a driver program, an application program, data, etc., used for processing by the processing unit 20. For example, the storage unit 12 stores, as an application program, a breakage determination processing program for executing a breakage determination process for determining breakage of each element.

[0057] Furthermore, the storage unit 12 stores, as application programs, a program for creating mapping information and a program for formulating a dismantling plan. These programs may be installed into the storage unit 12 from a computer-readable portable recording medium such as a CD-ROM or a DVD-ROM using a known setup program or the like. The storage unit 12 may also temporarily store temporary data related to predetermined processing.

[0058] The input unit 13 may be any device capable of inputting data, such as a touch panel or a keyboard. The worker can use the input unit 13 to input letters, numbers, symbols, etc. When operated by the worker, the input unit 13 generates a signal corresponding to the operation. The generated signal is then supplied to the processing unit 20 as an instruction from the worker.

[0059] The output unit 14 may be any device capable of displaying video, images, etc., such as a liquid crystal display or an organic EL (Electro-Luminescence) display. The output unit 14 displays video corresponding to video data supplied from the processing unit 20, images corresponding to image data, etc. Alternatively, the output unit 14 may be an output device that prints video, images, text, etc. on a display medium such as paper. The output unit 14 may also output transmission data to a mobile terminal carried by a worker, etc. In this case, the mobile terminal of the worker is remotely controlled from the output unit 14 via the communication unit 11 and then via a LAN or the Internet line.

[0060] The processing unit 20 has one or more processors and their peripheral circuits, and is, for example, a CPU. The processing unit 20 executes processing based on programs (driver programs, operating system programs, application programs, etc.) stored in the storage unit 12. The processing unit 20 can also execute multiple programs (application programs, etc.) in parallel.

[0061] The processing unit 20 has a structure information acquisition unit 21, a recovery classification information acquisition unit 22, a mapping information creation unit 23, a recovery processing information acquisition unit 24, a dismantling plan formulation unit 25, and, if necessary, a dismantling plan feasibility determination unit 26. Each of these units is a functional module realized by a program executed by a processor included in the processing unit 20. The function of each unit complies with the above-mentioned dismantling plan formulation method.

[0062] [Demolition Planning Program] One embodiment of a disassembly plan formulation program according to the present invention is for causing a processing unit of the disassembly plan formulation device to execute the embodiment of the disassembly plan formulation method described above in cooperation with each element of the disassembly plan formulation device, and the content of the program is the same as the disassembly plan formulation method described above. Therefore, the detailed description will be in accordance with the disassembly plan formulation determination method and the disassembly plan formulation device. [Example]

[0063] Example 1 An embodiment of the dismantling plan formulation method (dismantling plan formulation program) according to the present invention will be described. The equipment to be dismantled was a dust collector used in a factory, a medium-sized piece of equipment with a total weight of approximately 1,000 tons. Information on the type of steel used and its location was obtained from the equipment's drawings, and structural information was also obtained, including the equipment structure.

[0064] Next, the recovery classification items were set as follows and obtained as recovery classification information. Blast furnace steel (heavy plates, medium plates, thin plates, steel pipes) Electric furnace steel (shaped steel, blast furnace steel, steel materials that are difficult to separate (thin plate components reinforced with shaped steel), etc.) Non-ferrous products (electric cables (copper wires), stainless steel, non-ferrous metals) Valuables (electrical equipment such as electric motors) Waste

[0065] Next, based on the structure information and recovery classification information, mapping information was created that three-dimensionally maps what type of steel material is used where in the facility for each recovery classification item.

[0066] Next, for each of the recovery classification items, a post-recovery storage plan and transportation plan were created. The optimization evaluation index was the product of the blast furnace steel recovery rate (the ratio of the amount of scrap that can be recovered as blast furnace steel to the total amount of scrap) and the reciprocal of the work time. In other words, the optimization evaluation index was set to maximize the time performance related to the recovery of blast furnace steel. These were acquired as recovery processing information.

[0067] Based on the above mapping information and recovery and processing information, a dismantling plan for the equipment (dust collector) was formulated. A dismantling plan was formulated that maximized time performance for blast furnace steel recovery. The planned work time was approximately 10 days, which was about the same as the expected conventional work time, so it was determined that there would be no problems in execution. The formulated dismantling plan was thoroughly communicated to on-site workers in paper form, and was also made available as electronic data on on-site terminals at any time.

[0068] As a result of carrying out actual dismantling work in accordance with the formulated dismantling plan, the following types of scrap steel were separated and recovered. Blast furnace steel (steel plates (thick plates, medium plates, thin plates)): 580t ·Blast furnace steel (steel pipe): 30t ·Electric furnace steel (shaped steel): 40t Electric furnace steel (hard-to-separate steel): 250t Electric furnace steel (stainless steel): 10t Non-ferrous products, valuables (copper wire, electrical equipment, etc.): 20t Waste: Remaining

[0069] In conventional dismantling work, steel materials were not separated except for stainless steel, and were collected as bulk ferrous scrap. In other words, 900 tons (the combined total of the above blast furnace steel and electric furnace steel (shaped steel, steel materials that are difficult to separate)) was collected in bulk as ferrous scrap of the same quality as electric furnace steel. On the other hand, by applying the dismantling plan formulation method of the present invention, 610 tons of blast furnace steel (steel type with few tramp elements) could be separated and recovered as scrap. Moreover, the dismantling work was completed in approximately 10 days as planned, with little difference from previous results for dismantling facilities of the same scale. Therefore, it was confirmed that the dismantling plan formulation method of the present invention made it possible to efficiently separate and recover a large amount of blast furnace steel, which is useful for producing high-quality steel using the electric furnace method.

[0070] <Example 2> Next, an embodiment in which drawings or the like are not available will be described. The equipment to be dismantled was a crushing and screening device for raw ore, and consisted of a raw material hopper, transport conveyor 1, crusher, transport conveyor 2, screening device, sorting conveyor, and two product hoppers. As there were no blueprints for this equipment, a dismantling plan was drawn up using the following procedure, and the dismantling work was carried out.

[0071] (1) Using a 3D scanner (terrestrial laser scanner) and a laser surveying device mounted on a UAV (drone) (so-called UAV (drone) surveying), the objects to be demolished were measured in three dimensions (3D), 3D drawings and 3D images were created, and location information was obtained. (2) Next, by examining the drawings and the exterior, we determined the facility structure and equipment (hoppers, conveyors, control panels, motors, blowers, lowers, dampers, hydraulic equipment, bearings, valves, etc.), as well as the year of construction of the structure, and the type and shape of the steel material. (3) When the type of steel used in the structure was unknown, the steel type information was obtained by analyzing the steel type by taking samples or by directly analyzing the steel on-site using a handheld fluorescence spectrometer. (4) Mapping information was created by matching the location information with the steel type information, and the estimated recovery amount for each classification item was calculated on a 3D drawing (CAD drawing). (5) The recall classification items were set as follows, and recall processing information was formulated. Equipment (control panels, motors, hydraulic equipment, etc.) and valuables Non-ferrous metals (electric cables, copper products, aluminum alloys, etc.) Special steel (stainless steel, special alloy steel, etc.) ·Ordinary steel (blast furnace steel) ·Ordinary steel (electric furnace steel) ·Waste (conveyor belts, unattached dust, etc.) (6) A dismantling plan was developed based on the above mapping information and recovery and processing information. (7) Next, similarly to the first embodiment, a post-collection storage plan and a transportation plan were created for each of the collection classification items.

[0072] In this example, as in Example 1, the optimization evaluation index was the product of the recovery rate of blast furnace steel (the ratio of the amount of scrap that can be recovered as blast furnace steel to the total amount of scrap) and the reciprocal of the working time. In other words, the optimization evaluation index was set to maximize the time performance related to the recovery of blast furnace steel. These were acquired as recovery processing information.

[0073] Based on the above mapping information and recovery processing information, a dismantling plan for the target equipment was formulated, and it was possible to formulate a dismantling plan that would maximize time performance for blast furnace steel recovery. The planned work time was approximately three days, which was about the same as the expected conventional work time, so it was determined that there would be no problems in execution. The formulated dismantling plan was thoroughly communicated to on-site workers in paper form, and was also made available as electronic data on handy terminals on-site at any time.

[0074] As a result of carrying out actual dismantling work in accordance with the formulated dismantling plan, the following types of scrap steel were separated and recovered. Blast furnace steel (steel plate (thick plate, medium plate, thin plate)): 20t ·Blast furnace steel (steel pipe): 5t ·Electric furnace steel (shaped steel): 20t Special steel (stainless steel, special alloy steel): 5t Waste: Remaining

[0075] Conventionally, 45 tons (45 tons of the above blast furnace steel and electric furnace steel combined) would have been collected in one lump sum as iron-based scrap of the same quality as electric furnace steel, but by applying the dismantling plan formulation method of the present invention, it was possible to separate and collect 25 tons as scrap of blast furnace steel (a steel type with few tramp elements). Moreover, the dismantling work was completed in approximately three days as planned, with little difference from previous results for dismantling facilities of the same scale. Therefore, it was confirmed that the dismantling plan formulation method of the present invention made it possible to efficiently separate and recover a large amount of blast furnace steel, which is useful for producing high-quality steel using the electric furnace method. [Industrial Applicability]

[0076] The present invention can be used in all industries where demolition of structures is carried out. [Explanation of symbols]

[0077] 10. Dismantling planning device 11 Communications Department 12 Storage section 13 Input section 14 Output section 15 Bus 20 Processing section 21 Structure information acquisition department 22 Collection classification information acquisition unit 23 Mapping Information Creation Department 24 Collection and processing information acquisition unit 25 Demolition Planning Department 26 Demolition Plan Feasibility Assessment Department

Claims

1. A method for developing a demolition plan for a structure to be demolition by a computer, comprising: The computer a structure information acquisition step of acquiring structure information including location information of steel materials used in the structure and steel type information of the steel materials; a collection classification information acquisition step of acquiring collection classification information including collection classification items corresponding to the steel type information; a mapping information creation step of creating mapping information by associating the location information with each of the collection classification items of the steel materials used in the structure based on the structure information and the collection classification information; a collection and processing information acquisition step for acquiring collection and processing information including information on a storage location and a transport destination for each collection classification item when dismantling the structure; a dismantling plan formulation step of formulating a dismantling plan for the structure based on the mapping information and the recovery processing information; and an output step of outputting the formulated dismantling plan; A method for formulating a demolition plan for a structure, comprising:

2. 2. The method for formulating a demolition plan for a structure according to claim 1, further comprising, after the demolition plan formulation step, a demolition plan feasibility determination step in which the computer compares the formulated demolition plan with the recovery processing information to determine whether or not there are any problems in execution, and if it is determined in the demolition plan feasibility determination step that there are any problems, newly setting one or both of the recovery processing information and the recovery classification information, and feeding back the newly set recovery classification information to the recovery classification information acquisition step, and feeding back the newly set recovery processing information to the recovery processing information acquisition step.

3. The recovery classification items include: (a) Blast furnace steel and electric furnace steel, (a) Ordinary steel and special steel 3. The method for formulating a structure demolition plan according to claim 1 or 2, comprising one or both of the following steps.

4. 3. The method for formulating a demolition plan for a structure according to claim 1, wherein the steel type information includes a form of the steel material, and the structure information includes information about the construction year of the structure.

5. In the structure information acquisition step, the position information of the steel material and the steel type information of the steel material are (a) Obtained from drawings of said structure; (A) Measuring the structure using either one or both of a 3D scanner and a UAV to create a 3D drawing of the structure, and based on the position information and the steel type information, writing and acquiring the steel type information of the steel and the position information of the steel on the 3D drawing; or (c) obtaining location information of the steel material and steel type information of the steel material based on information obtained by collecting and analyzing samples of the steel material from the structure; 3. The method for formulating a structure demolition plan according to claim 1, wherein the information is acquired by any one of the following methods.

6. 3. The method for formulating a demolition plan for a structure according to claim 1, wherein the demolition plan includes a procedure for dismantling the structure, a storage location for the steel materials after dismantling, and a transportation procedure.

7. The method for formulating a demolition plan for a structure according to claim 3 , wherein the steel type information includes a form of the steel material, and the structure information includes information about the construction year of the structure.

8. In the structure information acquisition step, the position information of the steel material and the steel type information of the steel material are (a) Obtained from drawings of said structure; (A) Measuring the structure using either one or both of a 3D scanner and a UAV to create a 3D drawing of the structure, and based on the position information and the steel type information, writing and acquiring the steel type information of the steel and the position information of the steel on the 3D drawing; or (c) obtaining location information of the steel material and steel type information of the steel material based on information obtained by collecting and analyzing samples of the steel material from the structure; 4. The method for formulating a demolition plan for a structure according to claim 3, wherein the information is acquired by any one of the following methods.

9. 4. The method for formulating a dismantling plan for a structure according to claim 3, wherein the dismantling plan includes a procedure for dismantling the structure, a storage location for the steel materials after dismantling, and a transportation procedure.

10. A demolition plan development program for a structure to be demolitioned, Acquire structure information including location information of steel materials used in the structure and steel type information of the steel materials; Acquire collection classification information, which is information including collection classification items corresponding to the steel type information; creating mapping information by associating the location information with each of the collection classification items of the steel materials used in the structure based on the structure information and the collection classification information; When dismantling the structure, collection and processing information is acquired, which is information about the storage location and transport destination of the dismantled steel materials for each collection classification item. Developing a demolition plan for the structure based on the mapping information and the recovery and processing information; and outputting the formulated dismantling plan; A program for formulating a demolition plan for a structure, which program causes a computer to execute processing.

11. 11. The program for formulating a demolition plan for a structure according to claim 10, further comprising a demolition plan feasibility determination step of comparing the formulated demolition plan with the recovery processing information to determine whether or not there are any problems in execution, and if it is determined in the demolition plan feasibility determination step that there are any problems, newly setting one or both of the recovery processing information and the recovery classification information, and if the recovery classification information is newly set, acquiring the newly set recovery classification information again, and if the recovery processing information is newly set, acquiring the newly set recovery processing information again.

12. A demolition plan formulation device for a structure to be demolition, a structure information acquisition unit that acquires structure information including location information of steel materials used in the structure and steel type information of the steel materials; a collection classification information acquisition unit that acquires collection classification information that is information including collection classification items corresponding to the steel type information; a mapping information creation unit that creates mapping information by associating the location information with each of the collection classification items of the steel materials used in the structure based on the structure information and the collection classification information; a collection and processing information acquisition unit that acquires collection and processing information, which is information about storage locations and transport destinations of the dismantled steel materials for each collection classification item, when dismantling the structure; a dismantling plan formulation unit that formulates a dismantling plan for the structure based on the mapping information and the recovery and processing information; an output unit that outputs the formulated dismantling plan; A structure demolition planning device comprising:

13. 13. The structure dismantling plan formulation device according to claim 12, further comprising a dismantling plan feasibility determination unit that compares the formulated dismantling plan with the recovery processing information to determine whether there are any problems in implementation.

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