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2021 | Buch

Natural Slope Kapitel lesen Erstes Kapitel lesen

Social Infrastructure Maintenance Notebook

verfasst von: Prof. Atsushi Yashima, Prof. Yu Huang

Verlag: Springer Singapore

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik" , Springer Professional "Wirtschaft"

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SUCHEN

Über dieses Buch

This book explains in an easy-to-understand manner the “check” points to keep in mind when inspecting various social infrastructure structures. It is put together in a way that not only engineers who are on the front line of maintenance and management but also engineers who are not normally involved in maintenance and management of social infrastructures as well as general public can understand the importance of social infrastructure inspection work.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Natural Slope
Abstract
Slided soil on roads should be removed after confirming the safety of the upper part of the slope, as removal of slided soil on roads could lead to a secondary disaster.
Atsushi Yashima, Yu Huang
Chapter 2. Embankment
Abstract
As embankments in a half-bank and half-cut zone are hotbeds of subsidence and slides during earthquakes, extra attention should be paid when inspecting.
Atsushi Yashima, Yu Huang
Chapter 3. Cut
Abstract
Cut inspection involves risk as footing is often unstable. Make sure to wear safe and comfortable clothing and bring minimum inspection equipment such as a field book, camera and binoculars.
Atsushi Yashima, Yu Huang
Chapter 4. Falling Rocks
Abstract
Before a large-scale rockfall or a slope failure occurs, a small precursory phenomenon such as falling of small rocks may occur. Do not overlook this precursory phenomenon.
Atsushi Yashima, Yu Huang
Chapter 5. Sabo Facility
Abstract
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.
Atsushi Yashima, Yu Huang
Chapter 6. River Levee
Abstract
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.
Atsushi Yashima, Yu Huang
Chapter 7. Retaining Wall
Abstract
Cracks and sinking/faulting often occur in the ground behind a retaining wall. Inspection must be conducted thoroughly.
Atsushi Yashima, Yu Huang
Chapter 8. Snow Shed/Rock Shed
Abstract
Snow sheds/rock sheds are often built on cliffs. If a rock mass or a slope fails, it could lead to a serious accident. It is important to catch signs of rock mass failures.
Atsushi Yashima, Yu Huang
Chapter 9. Tunnel
Abstract
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.
Atsushi Yashima, Yu Huang
Chapter 10. Pavement
Abstract
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.
Atsushi Yashima, Yu Huang
Chapter 11. Slab
Abstract
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.
Atsushi Yashima, Yu Huang
Chapter 12. Steel Bridge
Abstract
Check the bridges with their whole views, you can find abnormal deflection and deformation of girders. In case of finding any misalignments on the line of wheel guard and railing, the supporting or bearing of superstructure may be damaged.
Atsushi Yashima, Yu Huang
Chapter 13. Concrete Bridge
Abstract
If there are any cracks at places where heavy vehicles pass by (ruts), pay extra attention as rainwater could reach the slab, decreasing the slab’s fatigue durability.
Atsushi Yashima, Yu Huang
Chapter 14. Box Culvert
Abstract
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.
Atsushi Yashima, Yu Huang
Chapter 15. Waterworks and Sewage
Abstract
A rattling sound may be caused by wearing, corrosion and deformation of a manhole cover. It is an indication that the holding frame is separated from the manhole structure and that it is in a hazardous condition. If it is left untreated, a gap will emerge between the holding frame and the surrounding pavement, which may cause skidding, noise and vibration.
Atsushi Yashima, Yu Huang
Metadaten
Titel
Social Infrastructure Maintenance Notebook
verfasst von
Prof. Atsushi Yashima
Prof. Yu Huang
Copyright-Jahr
2021
Verlag
Springer Singapore
Electronic ISBN
978-981-15-8828-0
Print ISBN
978-981-15-8827-3
DOI
https://doi.org/10.1007/978-981-15-8828-0