Comprehensive Safety Diagnosis

Harbor
  • Harbor has the sea water for anchoring ship safely and can load and put down the passenger and cargo quickly, safely. It has the facilities that are warehouse and yard for storing temporarily and traffic facilities for transport the passenger into back. Basic facilities of harbors according to facilities position and function are as follows.
  • A. Water area facilities : course, basin anchorage
  • B. Outer facilities : breakwater, groin, tide embankment, jetty, floodgate, embankment, crude oil buoy, etc.
  • C. Mooring facilities : pier, lighter's wharf, landing stage, dolphin, ferry, lamp
  • D. Traffic facilities near port, passenger facilities, custody facilities, cargo arrangement facilities
  • Among the upper all kinds of facilities, harbors facilities for safety check and exact safety diagnosis is floodgate of 1 kind construction and mooring facilities of pile structure over 50,000 DWT, mooring facilities over 200,000Ton grade and the subsidiary facilities, mooring facilities over 10,000 DWT of 2 kind construction and it's limited to mooring facilities no 1 kind construction.
Diagnosis sequence at the field of harbors

  • Preliminary check

    Field survey and grasp problem

    Data collection

  • Field survey and plan establishment

    Survey plan establishment and check

    Survey preparation and start

  • Survey and test

    Appearance state check
    - Concrete construction
    - Steel materials construction
    - Mechanical, electrical facilities and subsidiary facilities

    Durability check
    - Concrete strength, neutralization, chloride content, steel reinforcing exploration
    - All kinds of machine operation test, noise and vibration measurement

    Load carrying capacity check
    - Soil check and test
    - Settlement, displacement measurement

  • Review and analysis of survey results

    State evaluation
    - Organization and record about investigation results

  • Construction evaluation

    State evaluation
    - Use and durability inspection
    - State evaluation grade grant

    Safety evaluation
    - Load carrying capacity check and analysis
    - Safety evaluation grade grant

  • General evaluation

    Comparison of condition & safety evaluation · assignment of comprehensive evaluation grade

    - Comprehensive evaluation is made by comparing and analyzing the results of condition and safety evaluation. In accordance with the comprehensive evaluation criteria and procedures presented in Chapter 8, a comprehensive evaluation grade for each member and facility is assigned, and based on this, a comprehensive evaluation and a comprehensive evaluation grade for the entire facility to be diagnosed are given.

  • Repair and reinforcement presentation

    Repair and reinforcement plan comparison check

    Determination of optimal repair/reinforcement method
    - According to the results of the condition evaluation and safety evaluation of the facility, the repair and reinforcement method to be applied to the damaged or defective part or member is suggested.

  • Report writing

    Diagnosis content and result arrangement

    Special maintenance management presentation


    [ External test of
    upper part ]

    [ External test of
    lower part ]

    [ Submarine test ]

    [ Submarine test ]

    [ Pier structure review ]

    [ Rock rotational slip ]

    [ Rock structure review ]