Construction management methods and construction management systems

Abstract

To provide a construction management method and a construction management system with which construction quality is stably ensured and construction quality is easily managed.SOLUTION: A construction management system 1 manages construction quality when a bellows-type flexible tube formed by removing a predetermined length of a covering and cutting a tube end, is inserted in and connected to a flexible tube coupling, the system comprising: an acquisition unit 271 that acquires attribute information on tube equipment related to construction and image data on the tube equipment in the stages of construction; a determination unit 272 that determines construction quality in the stages on the basis of the acquired attribute information and image data; and a storage unit 32 that stores the determination result and construction information in association with each other.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a construction management method and a construction management system for managing the construction quality when connecting a bellows-shaped flexible pipe to a joint for a flexible pipe.

Background Art

[0002] For indoor gas piping etc., bellows-shaped flexible pipes made of metal are widely used. Also, various pipe joints for connecting this flexible pipe to a gas tap, a steel pipe, etc. are used. In recent years, a one-touch type pipe joint (for example, see Patent Document 1) that can complete construction only by inserting a flexible pipe into the pipe joint without the need for tools has also been put into practical use.

[0003] The flexible pipe has a plurality of peak portions and valley portions alternately arranged along the axial direction of the flexible pipe. Also, the outer peripheral portion of the flexible pipe is covered with a covering. When connecting the flexible pipe to the pipe joint, first, the flexible pipe is cut to an appropriate length, the covering for several peaks is removed from the tip of the flexible pipe, and then the tip of the exposed flexible pipe is cut. Then, after inserting and connecting the cut flexible pipe into the pipe joint, the flexible pipe is pulled straight in the pulling-out direction, and it is confirmed that the flexible pipe does not come off to complete the construction. In a configuration where the pipe joint has an indicator, further, the constructor completes the construction by confirming that the indicator appears.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described above, the installation of flexible pipes to pipe fittings involves several steps, including the pre-treatment of the flexible pipes. In order to properly connect flexible pipes to pipe fittings, the flexible pipes must be correctly processed and handled at each step. For example, if the shape of the pipe end after cutting is poor, the adhesion with the sealing material inside the pipe fitting may decrease, and airtightness may not be maintained. Also, if the amount of flexible pipe inserted into the pipe fitting is insufficient, it may be difficult to achieve sufficient airtightness.

[0006] Thus, the quality of construction when connecting flexible pipes is greatly influenced by the condition of the flexible pipes, pipe fittings, and other components (such as conduit pipes) at each stage of construction, including the shape of the pipe ends and the insertion amount. Currently, construction quality is mainly ensured by the contractor visually checking the condition of the flexible pipes at each stage. However, manual inspection may lead to overlooking construction defects. Furthermore, the criteria for judging construction quality may vary depending on the contractor's experience and skills. In this specification, "construction quality" refers to the quality determined based on the condition of the pipe equipment at each stage of construction, and is a comprehensive concept that includes cutting quality, peeling quality, and insertion quality, which will be described later. Also, "pipe equipment" is a comprehensive concept that includes the components involved in construction, such as flexible pipes, pipe fittings, and other components.

[0007] Furthermore, after a certain period has elapsed since the flexible pipes were installed, the administrator may want to check the installation status (such as the appearance of indicators). However, it is difficult to check pipe fittings installed inside walls, for example.

[0008] This invention has been made in view of these circumstances, and aims to provide a construction management method and construction management system that ensure stable construction quality and facilitate the management of construction quality. [Means for solving the problem]

[0009] The present invention relates to a construction management method for managing the construction quality when inserting and connecting a bellows-shaped flexible pipe, from which a coating has been peeled off to a predetermined length and the pipe end has been cut, into a flexible pipe joint. The method comprises the steps of: acquiring attribute information of the pipe equipment involved in the construction and image data of the pipe equipment at each stage of the construction; determining the construction quality at that stage based on the acquired attribute information and image data; and storing the determination result in association with the construction information. In the present invention, "attribute information" mainly refers to information on the attributes of the individual components involved in the construction. Examples of attribute information include dimensional information and manufacturing information of each component, as well as information on the installation location of each component. In addition, in the present invention, "construction information" refers to construction information that may affect the construction quality. Examples of construction information include information on the contractor, such as the name of the contractor, as well as information on the date and time of construction, location of construction, and temperature of construction.

[0010] The present invention relates to a construction management system for managing the construction quality when inserting and connecting a bellows-shaped flexible pipe, from which a coating has been peeled off to a predetermined length and the pipe end has been cut, into a flexible pipe joint. The system comprises: an acquisition unit that acquires attribute information of the pipe equipment involved in the construction and image data of the pipe equipment at each stage of the construction; a determination unit that determines the construction quality at that stage based on the acquired attribute information and image data; and a storage unit that stores the determination result and the construction information in association.

[0011] In the construction management system of the present invention, attribute information is attribute information of at least one of the pipe attribute information of the flexible pipe and the joint attribute information of the flexible pipe joint, and image data is image data of at least one of the flexible pipe and the flexible pipe joint at each stage of construction, and the determination unit may determine the construction quality, including at least one of the following qualities, based on the attribute information and image data: cutting quality in cutting the flexible pipe, peeling quality in peeling the coating, and insertion quality in inserting the flexible pipe.

[0012] Furthermore, in the construction management system of the present invention, the construction information may include information about the contractor.

[0013] Furthermore, the construction management system of the present invention may include a calculation unit that calculates the maturity level of the contractor based on the contractor's information and the result of the construction quality assessment.

[0014] Furthermore, in the construction management system of the present invention, the acquisition unit may acquire image data captured by a contractor's terminal operated by the contractor. [Effects of the Invention]

[0015] According to the construction management method and construction management system of the present invention, by adopting the above configuration, stable construction quality can be ensured, and the management of construction quality becomes easier. [Brief explanation of the drawing]

[0016] [Figure 1] This is an explanatory diagram showing steps (1) to (3) in the installation of flexible pipes. [Figure 2] This is a one-sided cross-sectional view showing the process of inserting a flexible pipe into a pipe fitting. [Figure 3] This is a cross-sectional view of one side showing the completed installation of the flexible pipe. [Figure 4] This is a schematic diagram showing one embodiment of the construction management system according to the present invention. [Figure 5] This is an explanatory diagram illustrating an example of a method for determining cutting quality. [Figure 6] This is an explanatory diagram illustrating an example of a method for determining peel quality. [Figure 7] This is an explanatory diagram illustrating an example of a method for determining insertion quality. [Figure 8] This is an explanatory diagram showing an example of processing performed in the construction management system according to the present invention. [Figure 9] This is an explanatory diagram showing an example of an application's input screen.

Best Mode for Carrying Out the Invention

[0017] Before explaining the construction management system of the present invention, first, the construction process when connecting a flexible pipe to a pipe joint will be described with reference to FIGS. 1 to 3. This construction is carried out by a constructor, for example, in the procedures of steps (1) to (5).

[0018] FIG. 1 shows each procedure of steps (1) to (3). In step (1), a flexible pipe cutter dedicated to stainless steel is used to cut the flexible pipe together with the outer covering. In step (2), a cutter dedicated to the covering is used to peel off, for example, about 12 pitches of the covering from the pipe end. In step (3), a flexible pipe cutter is used to cut the exposed flexible pipe at the valley leaving about 6 to 7 pitches. Through these steps (1) to (3), a flexible pipe with the covering peeled off by a predetermined length and the pipe end cut is obtained.

[0019] Then, in step (4), the flexible pipe cut in the above process is inserted straight to the depth of the pipe joint (see FIG. 2) to connect the flexible pipe and the pipe joint. After connection, in step (5), the flexible pipe is pulled straight in the pulling-out direction, and it is confirmed that the pipe does not come off to complete.

[0020] The state during the insertion of the flexible pipe is shown in FIG. 2. FIG. 2 is a partial cross-sectional view of the pipe joint and the flexible pipe. In FIG. 2, the pipe joint 11 includes a joint body 12 into which the flexible pipe T is inserted from one end. The joint body 12 has, inside it, a part of a pressing nut 13, an elastic member 14 that is axially telescopic in the joint body 12, a holding member 15 that holds the elastic member 14 in a compressed state, a moving member 16, a ring-shaped seal member 17 that adheres to the flexible pipe T, and a retainer 18. Also, at one end of the inner peripheral surface of the pipe joint 11, a lip packing 19a that seals the outer peripheral surface of the covering C and the inner peripheral surface of the pressing nut 13 in a watertight manner is attached.

[0021] In this invention, the pipe joint only needs to be capable of connecting flexible pipes, and is not limited to the configuration shown in Figure 2.

[0022] As the flexible pipe T is inserted further from the state shown in Figure 2, the tip (pipe end) of the flexible pipe T abuts against the movable member 16, causing the movable member 16 to move to the rear side of the joint body 12. As this movement occurs, the engagement between the holding member 15 and the joint body 12 is released, releasing the compressed state of the elastic member 14. Then, as the elastic member 14 extends, the sealing member 17 slides and is compressed in the axial direction of the joint body 12. As a result, as shown in Figure 3, the sealing member 17 comes into close contact with the outer surface of the flexible pipe T (including the peak T1). Also, as the elastic member 14 extends, the retainer 18 shrinks in diameter, and the claw portion 18a fits into the valley T2 of the flexible pipe T.

[0023] Then, in the state shown in Figure 3, the installer confirms that the flexible pipe T does not come out by pulling it in the pulling direction. Furthermore, if the pipe joint 11 is equipped with an indicator 19b, the installer also confirms that the indicator 19b appears.

[0024] Here, since fluid leakage and other problems can occur if flexible pipes are not properly connected to pipe joints, ensuring construction quality is crucial. The construction management method and construction management system of the present invention determine the construction quality of pipe equipment such as flexible pipes at each stage of construction, and stores the determination results in association with construction information, thereby ensuring stable construction quality and allowing the status of construction to be managed without on-site visual inspection. The construction management system of the present invention will be described in detail below.

[0025] Figure 4 is a schematic diagram showing an example of the construction management system of the present invention. As shown in Figure 4, the construction management system 1 comprises a contractor terminal 2 operated by a contractor connecting flexible pipes T at a construction site, a data server 3, and an administrator terminal 4. These are connected to each other via a network so that they can communicate with one another. The network consists of an telecommunications line such as an internet line. The contractor terminal 2 and the administrator terminal 4 are information processing devices such as personal computers, tablet terminals, and smartphones.

[0026] In Figure 4, the contractor terminal 2 includes an input unit 21 that accepts various types of information, an imaging unit 22 that images flexible pipes and pipe fittings that are subject to quality control, a display unit 23 such as a liquid crystal display that displays various types of information, a storage unit 24 such as built-in memory, a communication unit 25 that sends and receives information with the data server 3 and administrator terminal 4 via the network, and a control unit 26 including a CPU. The contractor terminal 2 operates as various functional units by executing software stored in the storage unit 24. In Figure 4, an application 27 for determining the quality of construction when connecting flexible pipes T is installed on the contractor terminal 2.

[0027] The input unit 21 accepts input of attribute information of piping equipment related to construction. Examples of attribute information of piping equipment include "pipe attribute information" for flexible pipes and "joint attribute information" for flexible pipe joints. "Pipe attribute information" includes the pipe size of the flexible pipe (nominal diameter (10A, 20A, etc.)). In addition, "pipe attribute information" may also include dimensional information such as steel body thickness, outer diameter, inner diameter, pitch, peak height, and radius of curvature of the corrugation, as well as manufacturing information such as manufacturing date, model number, and individual number. "Joint attribute information" includes the joint size (nominal diameter (10A, 20A, etc.)).

[0028] Furthermore, the attribute information of the piping system may also include attribute information of components other than the flexible pipe and pipe fittings involved in connecting the flexible pipe, or information regarding the installation location of the flexible pipe and pipe fittings. In this case, the other components and installation locations will also be included as targets for construction quality management. An example of an other component is a conduit pipe. A conduit pipe is a component used when piping a flexible pipe inside concrete or the like. It is pre-installed embedded inside the concrete, and the flexible pipe is passed through it. The attribute information of a conduit pipe may include, for example, the pipe size of the conduit pipe.

[0029] Attribute information such as "pipe attribute information" and "joint attribute information" can be entered by the installer directly via the input unit 21 or by selecting from a pull-down menu. Alternatively, the system may be configured to input associated "pipe attribute information" and "joint attribute information" by reading a two-dimensional code attached to the surface of a flexible pipe or pipe joint. In this case, the imaging unit 22 functions as a code reader.

[0030] The input unit 21 also accepts input of "construction information." This "construction information" includes contractor information (name, affiliation, etc.), construction date and time, and construction location (address, building name, etc.). This "construction information" can be entered, for example, by the contractor through direct input or selection.

[0031] As the imaging unit 22, for example, a camera having an image sensor such as a CCD (Charged Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) can be used. The imaging unit 22 captures images of the pipe equipment (preferably at least one of the flexible pipe and the flexible pipe fittings) at each stage of construction, and generates corresponding image data. Specific examples of image data include image data of the pipe side of the flexible pipe T after it has been cut in step (3) shown in Figure 1(c), image data of the pipe end of the flexible pipe T, image data of the appearance of the flexible pipe T and pipe fitting 11 after construction is completed (after step (5)), and image data of the indicator. The image data may also include conduit pipes and the surrounding structure of the construction site. These image data, along with the attribute information described above, are input to the application 27 as input data. These image data may include both still images and videos.

[0032] Application 27 includes an acquisition unit 271 that acquires attribute information of the piping equipment involved in the construction and image data of the piping equipment at each stage of construction, and a determination unit 272 that determines the construction quality at that stage based on the acquired attribute information and image data. Preferably, the determination unit 272 determines the quality of at least one of the following as construction quality: cutting quality in cutting the flexible pipe T, peeling quality in peeling the coating C, and insertion quality in inserting the flexible pipe T. The determination of these construction quality by the determination unit 272 will be explained with reference to Figures 5 to 7. Figures 5 to 7 each show an example of image data generated by the imaging unit 22.

[0033] Figure 5 shows how to determine cutting quality. Here, cutting quality refers to the quality of the cut surface determined based on the pipe end shape of the flexible pipe after process (3) shown in Figure 1(c). The work in process (3) requires the skill of the installer, and flattening deformation may occur when cutting the flexible pipe T. Figure 5 shows how cutting quality is determined using flatness. Flatness is an index that represents how flat a shape is relative to a perfect circle. If the major axis of the flattened shape is a and the minor axis is b, the flatness F can be expressed by the formula F = (ab) / a.

[0034] Figure 5(a) shows a flexible pipe T that has been properly cut. As shown in Figure 5(a), the pipe end T3 of the flexible pipe T is perfectly round. In this case, the flatness F is "0". On the other hand, Figure 5(b) shows a flexible pipe that has been improperly cut. As shown in Figure 5(b), the pipe end T3 of the flexible pipe T is elliptical. In this case, the flatness F is "approximately 0.2".

[0035] For example, when determining flatness, a standard specifies an allowable value S (e.g., 0.1) for flatness. The determination unit 272 determines that the cutting quality is good if the flatness calculated from the flexible pipe T after cutting is less than or equal to the allowable value S. On the other hand, if the flatness exceeds the allowable value S, it determines that the cutting quality is poor.

[0036] In addition to flatness, other indicators such as roundness may also be used to determine cutting quality.

[0037] Figure 6 shows how to determine the peel quality. Here, peel quality refers to the quality of peeling determined based on the degree of exposure of the flexible pipe T after step (3) shown in Figure 1(c) (which is also the degree of peeling of the coating C). Figure 6 shows a method of determining the peel quality using the peel length L1 of the coating C. The peel length L1 is the distance from the pipe end T3 of the flexible pipe T to the tip C1 of the coating C, and is calculated, for example, from the ratio to the outer diameter D of the flexible pipe T. Here, the outer diameter D of the flexible pipe T is obtained from pipe attribute information (such as the pipe size of the flexible pipe T).

[0038] The peeling length L1 is managed for each pipe size of the flexible pipe T, and an acceptable range is set for each pipe size. For example, if the pipe size is 20A, the acceptable range is set to 25.2 ± α (unit: mm). The judgment unit 272 determines that the peeling quality is good if the calculated peeling length L1 is within the acceptable range. On the other hand, if the calculated peeling length L1 is outside the acceptable range, it determines that the peeling quality is poor. For example, if the peeling length L1 of the coating C is longer than the acceptable range, the adhesion with the packing 19a (see Figure 3) may be insufficient, and the watertightness of the pipe joint 11 may decrease. Also, if the peeling length L1 of the coating C is shorter than the acceptable range, the coating C will be inserted into the pipe joint 11 more than necessary, which may affect the sealing performance.

[0039] In addition to the peeling length L1, other indicators such as the number of peaks T1 on the exposed flexible pipe T may also be used to determine the peeling quality. For example, the acceptable range for the number of peaks T1 is set to 6 to 7.

[0040] In Figure 6, multiple markings M are attached to the outer surface of the covering C. These markings M are arranged at equal intervals along the axial direction of the flexible pipe T, and two different shapes (square and circular in Figure 6) are arranged alternately along the axial direction of the flexible pipe T. The markings M are used to determine the insertion quality, which will be described later. In addition, the distance from each marking M1 to M4 to the pipe end T3 of the flexible pipe T is calculated from the image data shown in Figure 6.

[0041] Figure 7 shows how insertion quality is determined. Here, insertion quality refers to the quality of insertion determined based on the state in which the flexible pipe T is inserted into the pipe joint 11 after process (5) (see Figure 3). Figure 7 shows a method of determining insertion quality using the insertion amount of the flexible pipe T. Here, the insertion amount of the flexible pipe T is calculated, for example, from the image data of the appearance after construction shown in Figure 7 and the image data shown in Figure 6. Specifically, the distance L2 is calculated from the marking M2 closest to the pipe joint 11 among the multiple markings M attached to the covering C to the inlet side end face of the pipe joint 11, and this distance L2 is subtracted from the distance between the marking M2 and the pipe end T3 of the flexible pipe T in Figure 6.

[0042] The insertion amount of the flexible pipe T is controlled, for example, for each pipe size of the flexible pipe T, and an acceptable range is set for each pipe size. The determination unit 272 determines that the insertion quality is good if the insertion length of the flexible pipe T is within the acceptable range. On the other hand, if the insertion length is outside the acceptable range, it determines that the insertion quality is poor.

[0043] Furthermore, in determining insertion quality, other indicators such as the insertion angle of the flexible pipe T may be used in addition to the insertion length of the flexible pipe T. While the flexible pipe T is normally inserted parallel to the inner bore of the pipe fitting 11, it may also be inserted at an angle to the inner bore of the pipe fitting 11. Therefore, using the insertion angle as an indicator of insertion quality can prevent leaks and other problems caused by such occurrences.

[0044] Furthermore, in configurations where the pipe joint 11 is equipped with an indicator 19b (see Figure 3), the appearance of the indicator may be used to determine the quality of the construction.

[0045] As described above, the quality of workmanship (e.g., cutting quality, peeling quality, insertion quality, etc.) when connecting flexible pipes to pipe fittings is determined by the judgment unit 272. This judgment result is fed back to the worker by being displayed on the display unit 23 of the worker terminal 2. This allows the worker to easily understand the quality of workmanship, such as cutting quality, peeling quality, and insertion quality, and to prevent leaks and other problems caused by quality degradation. Furthermore, by having the judgment unit 272 determine the quality rather than relying on the worker's own judgment, a uniform quality judgment becomes possible, and stable workmanship quality can be guaranteed. In addition, feeding the judgment result back to the worker can lead to skill improvement for the worker. The judgment result from the judgment unit 272 is also associated with the workmanship information and transmitted to the data server 3.

[0046] In Figure 4, the data server 3 includes a communication unit 31 that sends and receives information with the contractor terminal 2 and the administrator terminal 4 via the network, and a storage unit 32 that stores the construction quality judgment results and construction information in association. The storage unit 32 has, for example, multiple databases (DBs), and stores the construction information in each construction DB according to the construction information. The databases may be separated by item (for example, by contractor, by construction date and time, by construction location, etc.). The information stored in the storage unit 32 may also be used as search items when the administrator checks the construction status.

[0047] Data server 3 can be installed, for example, in the data center of the customer who commissioned the construction work.

[0048] The administrator terminal 4 is a terminal operated by the administrator who manages the construction. The administrator terminal 4 has a communication unit 41 that sends and receives information with the contractor terminal 2 and the data server 3 via the network, an input unit 42 that accepts input of various information, and a display unit 43 such as an LCD display that displays various information. The input unit 42 accepts search items when the administrator checks the construction status, etc.

[0049] As shown in Figure 4, the application 27 may have a calculation unit 273 that calculates secondary calculation data based on data obtained from image data (primary calculation data) and input data. The form of the calculation unit 273 is not particularly limited, but for example, it may calculate the maturity level of the contractor based on the contractor's information and the result of the construction quality judgment. For example, the calculation unit 273 calculates the maturity level according to each construction quality. In this case, the maturity level of each contractor in cutting can be calculated from the percentage of cutting quality judged to be good. Specifically, the calculation unit 273 calculates in such a way that the higher the percentage of cutting quality judged to be good, the higher the maturity level.

[0050] Furthermore, in order to improve the maturity level of the contractors, for example, it may be possible to provide pre-set advice to image data that is judged to have poor cutting quality. In addition, the calculation unit 273 may calculate the items and quantities of pipe fittings used in this construction project from the reading information of the two-dimensional code provided on the pipe fittings.

[0051] Next, Figure 8 shows the flow of processing performed in the construction management system described above. Here, we will explain the case of managing cutting quality and peeling quality as an example, but it is not limited to this.

[0052] First, the contractor performs steps (1) to (3) shown in Figures 1(a) to 1(c) to obtain a flexible pipe T from which the coating has been stripped to a predetermined length and the pipe end has been cut. The contractor also operates the contractor terminal 2 to input the pipe attribute information of the flexible pipe T (step S21). This input may be done directly by the contractor or by reading a two-dimensional code. In addition to pipe attribute information, contractor information, construction date and time, and construction location may also be input. The contractor also takes photographs of the pipe end T3 and the pipe side of the flexible pipe T (step S22). Then, the pipe attribute information and image data of the flexible pipe T are input as input data into the application 27 installed on the contractor terminal 2.

[0053] Figure 9 shows an example of the input screen for application 27. In Figure 9, for example, contractor information is entered by reading a two-dimensional code written on the contractor's name tag. Pipe attribute information is entered by reading a two-dimensional code engraved on the flexible pipe. The construction location is entered using GPS. However, if the radio wave conditions are poor and GPS cannot be used, such as underground, the information may be entered directly. One or more image data acquired by photography are uploaded.

[0054] Returning to Figure 8, after acquiring input data (step S23), application 27 uses the input data to determine the construction quality (step S24). Here, cutting quality and peeling quality are determined. The method for determining each quality can be any of the methods described above. Specifically, the determination unit 272 compares the input data entered by the contractor with reference values ​​(such as standard values) set in advance within the application to determine whether the quality is good or bad. For example, it calculates the flatness and peeling length from the acquired image data and determines whether these are within the acceptable range. These determination results are output to the contractor terminal 2, and the contractor checks the displayed determination results (step S25). For example, if the cutting quality or peeling quality is determined to be poor, a new flexible pipe is used, and steps (1) to (3) are repeated, and the construction quality is determined again. This ensures good construction quality.

[0055] Next, the contractor terminal 2 associates the construction quality assessment result with the construction information and sends it to the data server 3. The data server 3 then saves the transmitted data according to a predetermined format (step S26).

[0056] Subsequently, the administrator operates the administrator terminal 4 to access the data server 3 and enters information such as the construction date and location to search for the construction history (step S27). The data server 3 displays the stored corresponding information based on the search items entered by the administrator (step S28). This allows the administrator to centrally manage the construction status even when away from the construction site.

[0057] The construction management system of the present invention is not limited to the configuration shown in Figure 4. For example, Figure 4 shows a configuration in which an application for determining construction quality is installed on the contractor's terminal 2, but that application may be provided on, for example, a data server 3. Alternatively, the contractor may access a dedicated internet site and input various information on that site to determine the construction quality. Furthermore, the construction management system shown in Figure 4 is merely one example of realizing a construction management method based on the present invention. [Explanation of Symbols]

[0058] 1: Construction Management System 2: Installer's terminal 21: Input section 22: Imaging Department 23: Display section 24: Storage part 25: Communications Department 26: Control Unit 27: Applications 271: Acquisition Department 272: Judgment section 273: Calculation Section 3: Data Server 31: Communications Department 32: Preservation Department 4: Administrator terminal 41: Communications Department 42: Input section 43: Display section T: Flexible pipe T1: Yamabe T2: Tanibe T3: tube end C: Covering C1: Tip M: Marking

Claims

1. A construction management method for managing the construction quality when inserting and connecting a bellows-shaped flexible pipe, from which the coating has been peeled off to a predetermined length and the pipe end has been cut, into a flexible pipe fitting, The steps include: acquiring attribute information of the piping equipment involved in the construction and image data of the piping equipment at each stage of the construction using a contractor's terminal operated by the contractor; The steps include determining the quality of construction at that stage based on the attribute information and image data acquired by the contractor's terminal, The data server includes a step of associating and storing the judgment result with the construction information. The attribute information is attribute information of at least one of the pipe attribute information of the flexible pipe and the joint attribute information of the flexible pipe joint, and the image data is image data of at least one of the flexible pipe and the flexible pipe joint at each stage of construction. The aforementioned determination step involves determining the construction quality, which includes at least one of the following qualities, based on the attribute information and the image data: cutting quality in cutting the flexible pipe, peeling quality in peeling the coating, and insertion quality in inserting the flexible pipe. The insertion quality is determined using the insertion amount of the flexible pipe, which is calculated based on image data of the flexible pipe with the coating peeled off to a predetermined length and image data of the appearance when the flexible pipe and the flexible pipe fitting are connected.

2. A construction management system for managing the construction quality when inserting and connecting a bellows-shaped flexible pipe, from which the coating has been peeled off to a predetermined length and the pipe end has been cut, into a flexible pipe fitting, An acquisition unit that acquires attribute information of piping equipment involved in construction and image data of the piping equipment at each stage of construction, A determination unit that determines the construction quality at that stage based on the acquired attribute information and image data, It includes a storage unit that stores the judgment result and construction information in association with each other. The attribute information is attribute information of at least one of the pipe attribute information of the flexible pipe and the joint attribute information of the flexible pipe joint, and the image data is image data of at least one of the flexible pipe and the flexible pipe joint at each stage of construction. The construction management system is characterized in that the determination unit determines the construction quality, which includes at least one of the following qualities based on the attribute information and the image data: cutting quality in cutting the flexible pipe, peeling quality in peeling the coating, and insertion quality in inserting the flexible pipe, and the insertion quality is determined using the insertion amount of the flexible pipe calculated based on image data of the flexible pipe from which the coating has been peeled off to a predetermined length and image data of the appearance when the flexible pipe and the flexible pipe joint are connected.

3. The construction management system according to claim 2, characterized in that the aforementioned construction information includes information on the contractor.

4. The construction management system according to claim 3, further comprising a calculation unit that calculates the maturity level of the contractor based on the contractor's information and the result of the construction quality determination.

5. The construction management system according to any one of claims 2 to 4, characterized in that the acquisition unit acquires the image data captured by a contractor terminal operated by the contractor performing the construction.

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