JP-7855448-B2 - Construction management system and construction management method

JP7855448B2JP 7855448 B2JP7855448 B2JP 7855448B2JP-7855448-B2

Inventors

石井喬之
野村価生

Assignees

大成建設株式会社

Dates

Publication Date: 20260508
Application Date: 20220721

Claims (7)

A construction management system for managing the construction of the spreading process, The filming crew photographs the scattered materials area by area, The system includes a processing unit that analyzes captured images to obtain information regarding construction quality control for each area , The aforementioned processing unit, A component detection unit for detecting the components of the material in the captured image, A particle size distribution estimation unit that estimates the particle size distribution of the material from the detected components, It includes a particle size distribution determination unit that determines whether the particle size distribution of each area falls within a predetermined control range . A construction management system characterized by the following features.
The mobile unit on which the aforementioned imaging unit can be mounted is further provided. The aforementioned imaging unit moves along the dispensing surface and takes images of the material. The construction management system according to feature 1.
The aforementioned mobile unit is an unmanned aerial vehicle, which moves at a predetermined speed while maintaining a constant distance to the dispensing surface. The aforementioned imaging unit photographs the dispensing surface at predetermined time intervals. The construction management system according to claim 2, characterized by the features described above.
The moving part is a construction machine used in the spreading process or a construction machine used in the compaction process performed after the spreading process. The aforementioned imaging unit photographs the spreading surface during the spreading process or the compaction process. The construction management system according to claim 2, characterized by the features described above.
The component detection unit individually detects the components in the captured image using a trained model that has learned the components using a learning model corresponding to instance segmentation. The construction management system according to feature 1.
The aforementioned trained model has been machine-trained to detect the components by inputting segmented images obtained by dividing the captured image. The construction management system according to claim 5, characterized in that it is a construction management system.
A construction management method for managing the construction of the spreading process, The process involves photographing the scattered materials area by area, The system includes a processing step that analyzes captured images to obtain information regarding construction quality control for each area . The aforementioned processing step is: A component detection step for detecting the components of the material in the captured image, A particle size distribution estimation step for estimating the particle size distribution of the material from the detected components, The system includes a particle size distribution determination step that determines whether the particle size distribution of each area falls within a predetermined control range . A construction management method characterized by the following features.

Description

This invention relates to a construction management system and a construction management method. In the construction of dams and other structures, batching plants and CSG mixing plants are used in the process of producing concrete and Cemented Sand and Gravel (CSG). In these plants, quality control requires that the particle size of the locally sourced materials (aggregates, soil, etc.) used be within a specified range (see Figure 14). For CSG quality control, it is necessary to understand the particle size distribution of locally sourced materials. The particle size distribution is controlled, for example, by a five-grade classification (0-5 mm, 5-10 mm, 10-20 mm, 20-40 mm, 40-80 mm). Traditionally, quality control tests have been performed manually, with samples being intermittently sampled at a predetermined frequency (once per hour in the initial stages of construction) to measure particle size (see, for example, JIS A 1102 "Method for Sieving Aggregates"). Manual quality control tests involve, for example, sieving the sample by particle size and drying it, then measuring the weight of the sample to determine the particle size distribution. Furthermore, a technique has been proposed to determine the particle size distribution by photographing the material (e.g., locally sourced material) and measuring the particle size distribution of the material in real time based on the photographic results (see, for example, Patent Document 1). Japanese Patent Publication No. 2015-010952 This is a schematic diagram of a construction management system according to the first embodiment of the present invention.This figure shows an application scenario of the construction management system according to the first embodiment of the present invention.This is a functional configuration diagram of a construction management system according to the first embodiment of the present invention.This is a functional configuration diagram of the analysis unit.This is an example of a photograph taken by the photography department.This is an image of dividing a captured image.This is a detection result image that reflects the detection results in the captured image.This is an image showing the detection result when object recognition is performed on a captured image without splitting it.This is an example flowchart illustrating the process in calibration mode.This is an example flowchart illustrating the process in learning mode.This is an example flowchart illustrating the processing in the particle size distribution estimation mode.This is a schematic diagram of a construction management system according to a second embodiment of the present invention.This is a schematic diagram of a construction management system according to a third embodiment of the present invention.This is an example of information used for quality control of locally sourced materials. The embodiments for carrying out the present invention will be described in detail below, with reference to the drawings as appropriate. Each figure is only a schematic representation to the extent necessary for a thorough understanding of the present invention. Therefore, the present invention is not limited to the illustrated examples. In each figure, common or similar components are denoted by the same reference numerals, and their redundant descriptions are omitted. [First Embodiment] <Configuration and application scenarios of the construction management system according to the first embodiment> Referring to Figures 1 and 2, the configuration and application scenarios of the construction management system 1 according to the first embodiment will be described. Figure 1 is a schematic configuration diagram of the construction management system 1 according to the first embodiment. Figure 2 is a diagram showing the application scenarios of the construction management system 1 according to the first embodiment. The construction management system 1 shown in Figure 1 is a system for managing the construction of the spreading process. The material being spread includes granular components (e.g., stones). The size of the components is not particularly limited and may range from a few millimeters to a few meters. The construction management system 1 can be used in various construction projects that require a spreading process, and the types and uses of construction projects to be managed are not particularly limited. In this embodiment, it is assumed that the construction management system 1 will be used in the construction of a rockfill dam embankment. An example of the process for construction of a rockfill dam embankment is shown in Figure 2. Construction of a rockfill dam embankment is carried out in the following order, for example, "material extraction process" from a quarry, "transportation process" of the extracted materials, "unloading process" of the transported materials, "spreading process" of the materials, and "compaction process". The construction management system 1 is