• ·
  • ·

Smart construction related issues and domestic - international technical information

We will share the press release "Building Safe Roads and Earthworks Construction Sites Without Skilled Engineers," released by the Korea Institute of Construction Technology (KICT) on 2023/08/17.

 

(You can download various periodicals published by the Korea Institute of Construction Technology through the link above.)

 


 
  The Korea Institute of Civil Engineering and Building Technology (President Kim Byeong-seok, hereinafter referred to as the Korea Institute of Civil Engineering and Building Technology) announced that it has secured 'development of automation technology for earthwork quality management and institutional foundation' to maximize work performance efficiency at road and earthwork sites.
 
  At a typical road construction site, it is necessary to consolidate the ground foundation before asphalt paving work to strengthen bearing capacity and ensure safety. Additionally, this process has the characteristic of requiring repetitive work in a large space. Due to these characteristics, there is a high dependence on construction equipment, and it is relatively easy to improve the process by applying automation technology. The spread of construction equipment automation technology is expanding overseas. 
 
  However, construction quality of construction equipment varies depending on the operator's skill level, and it is difficult to secure skilled operators. Additionally, repetitive work can expose workers to various risks in harsh environments. 
 
  Accordingly, the research team of the Geotechnical Research Division of the Korea Construction Research Institute (Team Leader: Researcher Jin-Woo Cho) developed 'Earthwork Quality Control Automation Technology (hereinafter referred to as Intelligent Compaction Technology)'. Intelligent compaction technology refers to a technology that can manage compaction quality in real time by automating the compaction process using rollers. A big advantage is that productivity can be improved through process simplification and uniform construction quality can be guaranteed. In addition, the research team developed equipment and systems to utilize 'intelligent compaction technology' and established an environment that can manage compaction quality in real time. 
 
  The work of consolidating the ground foundation specifically refers to the process of moving soil using earthmoving equipment (dozer), leveling it (grader), and then compacting it (roller). In the final step, compaction using rollers, additional tests are conducted to evaluate the degree of compaction. In the existing traditional method, the compaction process and the quality inspection process are separated, so work efficiency is low. In other words, the quality inspection process was carried out based on the results of an on-site spot test (plate loading test, density test), which limited the ability to manage the quality of the entire site in real time and continuously. 
 
  The developed intelligent compaction technology can compensate for these shortcomings. Quality control can be performed in real time by interpreting sensor data attached to the compaction roller and linking it with positioning data measured from high-precision GPS. The developed technology has increased the level of automation of the entire earthwork quality control process. 
 
  In addition, detailed quality management standards were established to resolve existing institutional problems. (Intelligent Compactor Standard Specification: KCS 10 70 20 (2021)). The intelligent compactor standard specification is significant in that it is the first national standard related to smart construction in Korea. 
 
  Director Kim Byeong-seok said, “In the domestic construction environment where it is difficult to secure skilled construction machine operators, earthwork quality control automation technology will be a solution that can guarantee stable and consistent construction quality.” He added, “Construction Research Institute will continue to actively pursue construction automation.” “We will work to propose and institutionalize policies so that they can be applied properly,” he said.
 
  This technology is being developed through the smart construction technology development national R&D project of the Ministry of Land, Infrastructure and Transport (Managing Agency: Korea Agency for Land, Infrastructure and Transport Science and Technology Promotion) “Smart construction technology development through road verification (2020~2025, 21SMIP-A158708-04)” It's in progress. Korea Expressway Corporation participates as the overall supervising research institute (Director: Smart Construction Technology Business Division Director Cho Seong-min), and the Korea Construction Research Institute participates as the 3rd department supervising research institute (Project title: Digital-based road construction equipment automation technology development, Research principal: Researcher Cho Jin-woo) is participating.