Titlebook: Social Infrastructure Maintenance Notebook; Atsushi Yashima,Yu Huang Book 2021 The Editor(s) (if applicable) and The Author(s), under excl

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Sabo Facility,Inspect and see if there are any cave-ins in the ground on the back side of revetments. Sinking of the ground on the back side is caused by soil runoffs, and it poses a risk of collapsing.

Flawless

River Levee,Hazardous spots are easiest to find during and immediately after floods. Finding out which spots are hazardous and in what way plays an important role in effective inspections and flood mitigation activities.

讽刺

Retaining Wall,Cracks and sinking/faulting often occur in the ground behind a retaining wall. Inspection must be conducted thoroughly.

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arterioles

Tunnel,In order not miss any defects when inspecting the inside of a dark tunnel within a limited time frame with traffic restrictions in place, it is important to obtain information on the tunnel from existing documents such as design documents and past inspection records. You must thoroughly prepare for the inspection.

Trochlea

Pavement,If potholes are left untreated, they could induce an accident which could lead to a defect in the administration of the pavement. They can also damage beneath the pavement surface, therefore they need to be treated at soonest.

Heart-Attack

Slab,If you see a crack or pothole in a pavement, the beneath slab may be deteriorating, such as a crumbling of the top surface of a slab, cracks in bottom surface of a slab, or slab concrete falling out, etc. If you see any defects in a pavement, inspect the bottom surface of the slab.

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fatuity

外露

Box Culvert,The highest priority should be placed on prevention of damages to a third party caused by falling pieces of concrete or joint materials, etc. Even if a hammer tapping inspection has been done, new spalling will always occur. Inspections should be conducted assuming that pieces of concrete always fall.