Demolition plan formulation method, demolition plan formulation program and demolition plan formulation device for structure

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] In order 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. A large amount of steel scrap is generated during the demolition of structures. In response to the social demands of the SDGs, there is an increased demand to reuse the generated steel scrap and regenerate 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 the demolition process in a planned manner. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2004-252885 A [Patent Document 2] JP 2002-343456 A Summary of the Invention [Problem to be solved by the invention]

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

[0007] On the other hand, while the material and origin of steel scrap, such as steel beams, which have a large bulk density and few attachments, can be identified, general steel scrap is collected as a whole, and the origin of the attachments, the composition of the material, the manufacturing process (blast furnace steel, electric furnace steel, etc.) is often unknown. Therefore, when reused, it often contains attachments and steel scrap that are mixed with elements (tramp elements) that cannot be removed in the refining process, and is reused as a raw material for low-grade steel products (bars, steel sections, etc.) with relatively loose composition standards. The so-called cascade-type resource recycling is being carried out. If the cascade-type resource recycling is repeated, the tramp elements will become concentrated in the collected steel scrap, and there is a concern that the amount of steel scrap that is difficult to reuse will increase.

[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 determined.

[0009] Therefore, the present invention aims to provide a method for formulating a dismantling plan to secure scrap iron that can be used to manufacture high-grade steel using the electric furnace method by classifying and recovering scrap iron generated during the dismantling of structures according to their material properties and origin. [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. It is generally known that steel produced by the blast furnace method contains fewer tramp elements, while steel produced by the electric furnace method contains many tramp elements because it uses scrap iron as raw material. Therefore, when formulating a dismantling plan for a structure, it is a good idea to research the type of steel for each part of the structure in advance using design drawings, etc., and to formulate a dismantling plan that takes into account recovery after dismantling. It is a good idea to classify the type of steel at least as either blast furnace steel (blast furnace steel) or electric furnace steel (electric furnace steel).

[0012] (stomach) If there is a drawing of the structure, the location and type of steel can be identified from the type of steel shown on the drawing. If the drawing does not indicate the type of steel, it is possible to determine whether it is blast furnace steel or electric furnace steel from the form of the steel (thick plate, thin plate, pipe, shaped steel, reinforcing steel bar, etc.) and the construction date of the structure. Furthermore, it is possible to collect samples on-site and perform component analysis using an elemental analysis device (such as a handheld X-ray fluorescence analyzer) to determine whether it contains tramp elements and how much of them it contains. If there is no drawing, it is possible to obtain something equivalent to the drawing by creating a 3D drawing of the structure and overlaying the steel type information of the steel on it. In this way, the location and type of steel in 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 the collected 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 creating step of creating mapping information by associating the position 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 disposal information acquisition step for acquiring collection and disposal 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 dismantling plan for a structure described in [1] above, further comprising a dismantling plan feasibility determination step of determining whether or not there are any problems with the execution of the formulated dismantling plan after the dismantling plan formulation step, 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 above. [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 construction year 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 information on the type of steel and the location of the steel; or (c) obtaining location information of the steel material and information on the type of the steel material based on information obtained by collecting and analyzing samples of the steel material from the structure; A method for formulating a demolition plan for a structure described in any one of the above [1] to [4], which is obtained by any one of the following methods. In addition, when creating a 3D drawing of the structure, this also 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 the 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 program for formulating a demolition plan for a structure to be demolition, Acquire structure information including location information of steel materials used in the structure and steel type information of the steel materials; Obtaining recovery classification information, which is information including a recovery classification item 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, recovery processing information is obtained, which is information regarding the storage location and transport destination of the dismantled steel materials for each recovery classification item. Developing a dismantling plan for the structure based on the mapping information and the salvage and processing information; and outputting the formulated dismantling plan; A program for formulating a demolition plan for a structure, the program causing a computer to execute processing. [8] The program for formulating a demolition plan for a structure described in [7] above, further comprising a demolition plan feasibility determination step for determining whether or not there are any problems with 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 including collection classification items corresponding to the steel type information; a mapping information creation unit that creates mapping information by associating the position 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 regarding a storage location and a transport destination 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 dismantling plan formulation device comprising:

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

[0016] According to the present invention, it is possible to classify and recover scrap iron generated during the dismantling of structures according to their material and origin, making it possible to secure more scrap iron than ever before that can be used to manufacture high-grade steel using the electric furnace process. [Brief description of the drawings]

[0017] [Figure 1]4 is a flowchart of a disassembly plan creation method executed by a disassembly plan creation device according to an embodiment of the present invention. [Diagram 2] 1 is a configuration diagram of a dismantling plan formulation device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 disassembly plan formulation method, while incorporating a disassembly plan formulation device and a disassembly plan formulation program. However, the technical scope of the present invention is not limited to these embodiments.

[0019] [Structure] The structure is a structure that includes steel materials to be dismantled. The form of the structure is not particularly limited. For example, buildings (not limited to buildings with steel frame structures, but also including buildings made of reinforced concrete), bridges, machinery and equipment, chemical plants, ships, transport machinery, and other structures that use steel products (steel materials) and are to be dismantled are included in the structures that are the subject of the present invention.

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

[0021] The position information of steel material is information about which part (position) of a structure the target steel material is located in. There are no particular limitations on the method of specifying the steel material position. For example, it may be specified by any Cartesian coordinate system (for example, a three-dimensional Cartesian coordinate system is assumed with a point in a three-dimensional space including the structure as the origin, and the structure is shown in the three-dimensional coordinate system), or it may be specified by part (for example, rolls, housings, bearings, etc. in a rolling machine, or vibrating screens, hoppers, etc. in a screening device) or by part (for example, the western staircase on the third floor of a building, or the girder of a steel bridge).

[0022] There is no particular limitation on the method of classifying the steel type used as the steel type information of the steel material. It is advisable to determine the steel type information of the steel material in accordance with the classification of the iron scrap generated by the dismantling of a structure. For example, the "name of the steel material" specified in the JIS standard (e.g., "rolled steel material for welded structures") may be used as the steel type information, or the "steel material code" (e.g., "SM400A") may be used as the 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 from the drawings of the said structure. If the drawings do not indicate the type of steel, the type of steel can be determined from the form of the steel (thick plate, thin plate, pipe, steel section, reinforcing bar, etc.) and the construction date of the structure, etc. (a) Creating a 3D drawing of the structure and writing and identifying the steel type and location information of the steel. Creating a 3D drawing also includes measuring the structure through surveying (such as laser surveying) using either or both of a 3D scanner and a UAV (Unmanned Aerial Vehicle) such as a drone, and converting the structure into 3D data (3D image). (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 is no particular limitation 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 may 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 elements and origin are clearly identified. Therefore, scrap steel made from blast furnace steel can be used as a raw material for producing high-grade steel using electric furnaces. On the other hand, electric furnace steel is a steel material produced mainly from iron scrap, and since it is not possible to trace the type of iron scrap used as a raw material, many steel products have unclear component elements and origins. Therefore, electric furnace steel often contains tramp elements, and their concentrations are often high. Since the composition of the impurities in electric furnace steel is unknown, there is a possibility that the tramp elements will become concentrated by repeatedly reusing the scrap, so it is necessary to limit the amount of tramp elements used to produce high-quality steel.

[0026] Information regarding the relationship between the steel type of steel material and the collection classification items (i.e., information regarding the linkage between the steel type and the collection classification items) is also included in the collection classification information. When classifying collection materials, it is desirable to classify each steel material 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 by 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 this alone does not result in the tramp elements being concentrated in the iron scrap through recycling. 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 produced mainly by the blast furnace method) Deep drawing steel sheets, high-grade thin steel sheets (high-tensile steel sheets) Surface-treated steel sheet Hot-rolled steel sheets, 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 produced mainly 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 manufactured using the blast furnace method because of strict composition control, but some are also manufactured using the electric furnace method because they are produced in small lots. Special steels manufactured using the electric furnace method also have strict composition control.

[0029] Examples of special steels include stainless steel with high Ni and Cr content to improve corrosion resistance, Invar alloy, a Ni-Fe alloy containing 36% Ni to make the thermal expansion coefficient extremely small, spring steel specialized for springs, piano wire, etc. The main examples of special steels are shown below. Carbon steel for mechanical construction: S10C, S45C, etc. (Carbon steel for machine construction may be classified as ordinary steel. The decision as to which classification to use should be made in accordance with 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. The constituent elements include carbon, silicon, manganese, phosphorus, sulfur, etc., and the composition is controlled according to the application and standard. For example, in applications that require performance such as workability and surface properties such as press molding, it is necessary to limit the inclusion of impurity elements such as copper and tin as much as possible. In the case of the blast furnace method, the inclusion of impurity elements is controlled and suppressed, but when ordinary steel is manufactured using the electric furnace method, the performance and applications are limited because it is greatly affected by the impurity elements contained in the raw material scrap.

[0031] When classifying ordinary steel and special steel, just as with blast furnace steel and electric furnace steel described above, it is not necessarily realistic to make a strict classification; steel types that are primarily considered to be ordinary steel should be classified as ordinary steel, and steel types that are primarily considered to be special steel should be classified 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 above-mentioned blast furnace steel and electric furnace steel, it is not necessarily realistic to make strict classifications, and special steels that are mainly manufactured by the blast furnace method may be classified as "blast furnace steel and special steel," for example.

[0033] The more finely the collected scrap iron is classified, the greater the degree of freedom in recycling, but on the other hand, the management costs of classification (including the labor and cost of storing the scrap iron and further classifying the scrap iron) increase. Therefore, the classification of the scrap iron generated 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 scrap iron, the labor and cost of the classification of the scrap iron, and infrastructure costs such as the work space.

[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 that have market value. For example, non-ferrous products include copper products, aluminum products, and products containing rare metals. These non-ferrous products are used as raw materials for regenerating each product and have market value in themselves, so they are generally collected and reused separately from iron scrap. In addition, non-ferrous valuables may be classified and collected according to non-ferrous metals, such as copper products and aluminum products, if necessary. In that 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 rubble, waste plastic, refractory materials, dust, etc. that are difficult to recycle and are discarded after collection. Therefore, waste includes leftover materials after collection of iron scrap, non-ferrous products, valuables, etc., and must be properly disposed of in accordance with the Industrial Waste Manifest System. However, even if it is not metal, if it can be collected separately and reused, it is better to set it as a collection classification item rather than waste.

[0036] [Mapping Information] Mapping information is information that associates location information for each collection classification of steel materials used in a structure based on structure information and collection classification information. Therefore, the information links the location in the structure and the collection classification item for each steel material. The mapping information makes it possible to grasp the amount of steel materials at which locations in the structure are in a mesh according to the collection classification items. For example, based on a drawing of the structure, the location can be recognized as color-coded according to the collection classification items.

[0037] [Collection and processing information] The recovery processing information is information on the transportation processing such as the storage location and transport destination for each recovery classification item of steel materials generated when dismantling a structure. For example, it includes information that specifies the storage location (temporary storage location) for recovered steel scrap at the structure dismantling site for each recovery classification item. Also, if the recovered steel scrap needs to be further classified for each recovery classification item, information on the classification work site is included. Also, it includes information on the parking location of trucks and the like that transport the recovered steel scrap from the temporary storage location, and information on the transport destination.

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

[0039] There are no particular limitations on the constraints, so long as they are constraints that should be considered when formulating a plan. Examples of constraints include an upper limit on demolition costs, restrictions on demolition work hours (such as restrictions that work can only be done during the day or only on weekdays), restrictions on the number of workers, and worker skills.

[0040] The optimization evaluation index is an index for evaluating the optimization, which is determined based on what is important and what is optimized in the formulation of the demolition plan. Therefore, it is not particularly limited because it varies depending on the needs of the demolition work. For example, when focusing on the separate collection of iron scrap, it is recommended to formulate the plan so that collection can be performed efficiently in accordance with the collection classification items. Also, for example, when it is desired to shorten the demolition time as much as possible, it is recommended to formulate the demolition time as the evaluation index. There are many other items that can be used as optimization evaluation indexes, such as the viewpoint of demolition costs, and it is recommended to select or combine these to formulate the demolition plan as the optimization evaluation index. The reference value is a reference value for determining whether the optimization evaluation index is at a satisfactory level, and is recommended to be set in advance and included in the collection processing information together with the optimization evaluation index.

[0041] [Demolition Plan] A dismantling plan can be formulated that includes the dismantling procedure for the structure to be dismantled, the storage location for the steel materials after dismantling, and the transportation procedure, based on mapping information, which is information that links the steel materials in the structure to their locations for each collection classification item, 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 dismantling plan is a plan that determines the procedure for dismantling in order to optimally collect and transport the generated steel scrap according to the collection classification items.

[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, it is assumed that the work time significantly exceeds the expected time, which is a predetermined reference value. In addition, conditions that were not taken into account when the dismantling plan was formulated may arise after the plan was formulated. In such cases, it is advisable to determine that there is a problem in terms of execution, review the conditions, and formulate a new dismantling plan.

[0043] If it is determined that there is a problem in execution, the flow returns to the dismantling plan formulation flow, and the input conditions are changed and reconsidered. Since the input conditions can be the collection classification information and the collection processing information that are the premises for the dismantling plan formulation, at least one of the pieces of information can be reviewed and the dismantling plan can be formulated again. For example, if the condition is information on collection classification, it is recommended to feed back the information to the collection classification information, set new collection classification information, and formulate a new dismantling plan. Also, if the condition is information on collection processing, it is recommended to feed back the information to the collection processing information, set new collection processing information, and formulate a new dismantling plan. Of course, it is also possible to feed back both of them at once and formulate a new dismantling plan. In this way, the feasibility of the dismantling plan can be increased, and a feasible dismantling plan can be formulated. By repeating this, an optimal dismantling plan can be formulated.

[0044] [output] The obtained demolition work plan should be output in a form that can be recognized by the relevant parties. There are no particular limitations on the output form. 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 forms, so an appropriate form may be selected.

[0045] [A series of steps 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 dismantled and information on the steel type of the steel materials is acquired (S101). For example, in the dismantling 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 the structure information acquisition unit 21, and stored as data in the storage unit 12.

[0047] [Recovery classification information acquisition step] In the collection classification information acquisition step, collection classification information relating to iron scrap etc. generated by dismantling is acquired (S102). For example, on the computer, the collection classification information is input from the outside via a communication line etc., processed by the collection classification information acquisition unit 22, and stored as data in the storage unit 12. Note that 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 creating the next mapping information.

[0048] [Mapping information creation step] Based on the already acquired structure information and collection classification information, position 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 and position 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 storage unit 12 are processed by the mapping information creation unit 23, and the resulting mapping information is stored as data in the storage unit 12. Although the mapping information is data, it can be converted by the mapping information creation unit 23 into a form that can be recognized by humans and 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 indicating the amount of each collection classification item present for each part of the structure (for example, floor of a building). There is no particular limitation on the means for creating the mapping information. Existing CAD software, map software, or proprietary software may be used.

[0049] [Recovery processing information acquisition step] In the recovery processing information acquisition step, recovery processing information such as information on the storage location of the iron scrap generated by dismantling and the optimization evaluation index is acquired (S104). For example, in the computer, the recovery processing information is input from the outside through a communication line or the like, processed by the recovery processing information acquisition unit 24, and stored as data in the storage unit 12. The recovery processing information acquisition step does not need to be performed after the mapping information creation step, and it is sufficient if it is prepared before the dismantling plan is formulated. Therefore, the recovery 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 changed. Preferably, since it is considered that the storage location of the generated iron scrap etc. is often considered based on the mapping information, the recovery processing information acquisition step should be performed after the mapping information creation step.

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

[0051] [Step to determine feasibility of dismantling plan (determine whether there are any problems with the dismantling plan)] If it is determined that there is a problem in the execution of the formulated dismantling plan, the flow for formulating the dismantling plan is returned to, 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 formulating the dismantling plan, so the feedback flow differs depending on which information is reviewed (S108). For example, if the recovery classification items are subdivided too much and the dismantling work load becomes high, the recovery classification items can be reviewed and changed, and the dismantling plan formulation can be executed again from the recovery classification information acquisition step (S102). Also, for example, if the transportation of scrap iron and the like becomes a bottleneck in the process due to a shortage of recovery item storage areas, the information on the recovery item storage areas can be reviewed and changed, and the dismantling plan formulation can be executed again from the recovery processing information acquisition step (S104). Also, for example, when the optimization evaluation index for formulating the dismantling plan is changed (for example, when the priority was changed from time to cost reduction), the optimization evaluation index can be reviewed and changed, and the process can be executed again from the recovery processing information acquisition step (S104). If there are any changes to 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 or not there are any problems with the dismantling plan.

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

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

[0054] 2 is a block diagram showing an example of the configuration of the dismantling plan formulation device 10. The dismantling plan formulation device 10 is composed of a communication unit 11 that serves as an interface with the outside, an input unit 13, an output unit 14, a processing unit 20, and a storage unit 12 that is composed of a memory that stores information (data) processed by the processing unit and a temporary memory when processing by the processing unit. The 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 is preferable to also include a dismantling plan feasibility determination unit 26 as necessary.

[0055] The communication unit 11 has a wired communication interface circuit such as Ethernet (registered trademark) etc. The communication unit 11 communicates with a server (not shown) etc. 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, and the like used for processing in 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 in the storage unit 12 using a known setup program or the like from a computer-readable portable recording medium such as a CD-ROM or a DVD-ROM. The storage unit 12 may also temporarily store temporary data related to a predetermined process.

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

[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. The output unit 14 may also be an output device that prints video, images, characters, 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 operated from the output unit 14 via the communication unit 11 and then via a LAN or an 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] [Dismantling planning program] An embodiment of a dismantling plan formulation program according to the present invention is for causing a processing unit of the dismantling plan formulation device to execute the embodiment of the dismantling plan formulation method described above in cooperation with each element of the dismantling plan formulation device, and the content of the program is the same as that of the dismantling plan formulation method described above. Therefore, the detailed description will be based on the dismantling plan formulation determination method and the dismantling plan formulation device. EXAMPLES

[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 for a factory, a medium-sized piece of equipment with a total weight of about 1,000 tons. Information on the type of steel used and its location was obtained from the equipment's drawings, and information on the structure of the equipment was also obtained.

[0064] Next, the recovery classification items were set as follows and obtained as recovery classification information. Blast furnace steel (thick 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 (electrical cables (copper wires), stainless steel, non-ferrous) Valuables (electrical equipment such as electric motors) Waste

[0065] Next, based on the structure information and the 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 a transportation plan were created. In addition, 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 inverse of the work time was set as the optimization evaluation index. In other words, it was set as the optimization evaluation index that maximizes the time performance regarding the recovery of blast furnace steel. These were obtained as recovery processing information.

[0067] Based on the above mapping information and recovery 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 to view at any time on on-site terminals.

[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 collected. Blast furnace steel (steel plate (thick plate, medium plate, thin plate)): 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, valuable materials (copper wire, electrical equipment, etc.): 20t Waste: Remaining

[0069] In the conventional dismantling work, steel materials were not separated except for stainless steel, and were collected as ferrous scrap in bulk. In other words, 900 tons (the above blast furnace steel and electric furnace steel (shaped steel, steel materials that are difficult to separate) combined) 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 about 10 days as scheduled, with almost no difference from the results of previous dismantling of 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 that contributes to the production of high-grade steel using the electric furnace process.

[0070] <Example 2> Next, an embodiment in which drawings and 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 product hoppers (2). Since there were no blueprints for this equipment, a dismantling plan was drawn up in the following order, 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. (3) When the type of steel used in the structure was unknown, information on the type of steel was obtained by either taking samples to analyze the steel type or by directly analyzing the steel on-site using a handheld fluorescence analyzer. (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 (electrical cables, copper products, aluminum alloys, etc.) Special steels (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-recovery storage plan and a transportation plan were created for each of the above-mentioned collection classification items.

[0072] In this embodiment, as in the first embodiment, 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 operation time was used as the optimization evaluation index. In other words, the optimization evaluation index was set to maximize the time performance regarding the recovery of blast furnace steel. These were obtained as the recovery processing information.

[0073] Based on the above mapping information and recovery processing information, a dismantling plan for the target equipment was formulated, and a dismantling plan was formulated that maximized 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 handheld terminals at the 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 collected. 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 including the above blast furnace steel and electric furnace steel) would have been collected in one lump sum as ferrous scrap equivalent to electric furnace steel, but by applying the dismantling plan formulation method of the present invention, 25 tons could be collected separately as scrap of blast furnace steel (a steel type with few tramp elements). Moreover, the dismantling work was completed in about three days as scheduled, with little difference from the results of previous dismantling of facilities of the same scale. Therefore, it was confirmed that the dismantling plan formulation method according to the present invention enabled efficient separation and recovery of a large amount of blast furnace steel that contributes to the production of high-grade steel using the electric furnace process. [Industrial Applicability]

[0076] The present invention can be utilized 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 and Classification Information Acquisition Department 23 Mapping Information Production Department 24 Collection and Processing Information Acquisition Department 25 Demolition Planning Department 26 Demolition Plan Feasibility Assessment Division

Claims

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 creating step of creating mapping information by associating the position 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 disposal information acquisition step for acquiring collection and disposal 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 dismantling plan for a structure according to claim 1, further comprising, after the dismantling plan formulation step, a dismantling plan feasibility determination step of determining whether or not there are any problems in executing the formulated dismantling 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 3. The method for formulating a dismantling plan for a structure according to claim 1 or 2, comprising one or both of the steps:

4. 3. The method for formulating a dismantling 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 regarding a construction year 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 information on the type of steel and the position of the steel; or (c) obtaining location information of the steel material and information on the steel type 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 dismantling plan for a structure according to claim 1 or 2, wherein the information is obtained by any one of the following methods.

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

7. The method for formulating a dismantling 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 regarding a construction year of the structure.

8. 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 information on the type of steel and the position of the steel; or (c) obtaining location information of the steel material and information on the steel type 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 dismantling plan for a structure according to claim 3, wherein the information is obtained by any one of the following methods.

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

10. The method for developing a demolition plan for a structure as described in claim 5, wherein when creating a 3D drawing of the structure, the method includes measuring the structure using either a 3D scanner or a UAV or both to create a 3D drawing.

11. The method for developing a demolition plan for a structure as described in claim 8, wherein when creating a 3D drawing of the structure, the method includes measuring the structure using either a 3D scanner or a UAV or both to create a 3D drawing.

12. A program for formulating a demolition plan for a structure to be demolition, Acquire structure information including location information of steel materials used in the structure and steel type information of the steel materials; Obtaining recovery classification information, which is information including a recovery classification item 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, recovery processing information is obtained, which is information regarding the storage location and transport destination of the dismantled steel materials for each recovery classification item. Developing a dismantling plan for the structure based on the mapping information and the salvage and processing information; and outputting the formulated dismantling plan; A program for formulating a demolition plan for a structure, the program causing a computer to execute processing.

13. 13. The program for formulating a dismantling plan for a structure as described in claim 12, further comprising a dismantling plan feasibility determination step for determining whether or not there are any problems in executing the formulated dismantling plan, and if it is determined that there are any problems, reviewing and obtaining one or both of the recycling processing information and the recycling classification information.

14. 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 including collection classification items corresponding to the steel type information; a mapping information creation unit that creates mapping information by associating the position 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 regarding a storage location and a transport destination 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 dismantling plan formulation device comprising:

15. 15. The structure dismantling plan formulation device according to claim 14, further comprising a dismantling plan feasibility determination unit that determines whether or not there are any problems in implementing the formulated dismantling plan.

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