Hanmac Engineering manages a wide variety of businesses such as performing regular safety inspection of large scale construction in compliance with section 100-1 of the Construction and Technology Promotion Enforcement Ordinance in order to promote constructions outstanding qualities, and performing detailed safety assessments of facilities in compliance with Section 6 and 7 of the Special Act on the Safety Control of Public Structures to prevent disasters and catastrophes while enhancing the proficiency of the facility and securing public safety.

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• Business Areas

Regular Safety Inspection of Type 1 and 2 Facilities within Construction Site (Tunnel, Bridge, Port and Repair Facilities)

Hanmac Engineering performs regular safety inspection of structures undergoing construction. The inspection consists of on-site assessment through visual inspection and non-destructive testing equipment (during structure construction) to evaluate the surrounding safety measures of the construction site such as the quality of construction, adequacy of construction status, temporary structure and construction method safety for safe construction of target structure, and stability of nearing structures. If issues are raised during inspection, preventative measures are taken to secure the safety of the construction. Moreover, the information is used as required document for future maintenance.

Initial Inspection of Type 1 and 2 Facilities performed prior to Construction

The initial inspection is the recorded inspection on the structure management register which is implemented in compliance with the Construction and Technology Promotion Act. The purpose of the initial inspection is to obtain initial measurements and values, as well as base data for safety and structure maintenance post construction. Moreover, inspection and observation of overall materials of the structure is performed to identify potential defects and issues in the form of condition evaluation items and priority maintenance items. Such evaluations provide quantitative data concerning the structure's safety and may be used as significant data in determining the load capacity of the structure.

Detailed Safety Inspection and Assessment of Constructed Type 1 and 2 Facilities, Revetment, Slope Stability

Detailed inspection is utilized to accurately identify the current condition of the structure and to compare changes in condition compared to previously recorded data. The detailed inspection is comprised of thorough visual inspection and simple measurements taken via test equipment to obtain necessary measurements and perform required tests to verify whether the current condition satisfies the current use requirements of the structure. Detailed safety assessment is performed to identify defects which are difficult to detect via detailed inspection. It is comprised of thorough visual inspection, measurements taken via test equipment to obtain necessary measurements and testings to obtain data necessary for the condition evaluation and safety evaluation.

Facilities Maintenance, Repair and Reinforcement

Facility maintenance generally consists of inspection, as well as repair, improving, and reinforcement constructions post construction to maintain the functionality of the facilities, such as bridges, tunnels, overpasses, structures, dams, ports and railways.

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• Achievement

• Regular Safety Inspection

  Goyang-si bypass road (Todang-Wondang) construction

  Samcheok-Donghae expressway (Lot No.4) road construction

  Yongma tunnel SOC construction

  Bukhangdaegyo-Dongmyeong intersection underpass construction (Lot No.2)

  Ulsan-Pohang double track railway (Lot No.2)

  Dongbu expressway expansion project

  Initial Inspection

  Jeongju-Gwangyang section expressway construction (Lot No.13)

  Pohang Youngil port general dock (Phase 1-1) construction

  Mokpo-Gwangyang section expressway construction (Lot No.6)

  Suwon station bypass-Hoemaesil IC section road construction

  Chungju (Cheongmicheon) river environment maintenance project

  Jeolla line railway subbase Lot No.1

  Detailed Inspection

  Dangha No.1 and 2 floodgate detailed inspection service

  Namhang Youngjin dock detailed inspection service

  Hangjang IC bridge and 17 other facilities detailed inspection service

  Bakdal, Seoksu sewage treatment facility detailed inspection service

  National expressway No.1 Baekyeongyo and 11 other bridges detailed inspection service

  Gyeongbu expressway Shintanjin bridge and 27 other structures detailed inspection service

  Detailed Safety Assessment

  2013. 15 facilities including Waegwan Nakdong River bridge detailed safety assessment service

  facilities including Yanggeun grand bridge detailed safety assessment service

  2014. Mungyeonsaejae tunnel and 17 additional facilities detailed safety assessment service

  Guryong tunnel and 1 additional facility detailed safety assessment service

  Yuhyeon reservoir detailed safety assessment service

  Manjang cave safety assessment

  Facility Maintenance

  Anyang technical high school electrical computer room rearrangement construction

  2 bridges including Ogeumgyo bridge deck replacement construction

  Dongbu power plant office construction and other constructions

  Seongnam fire station (principal office) government office building exterior remodeling construction