Examination Regarding The Design Method Of A
Protective Barrier For Debris Flow
Author(s)
R. Sawada
Abstract
When designing a protective barrier in order to protect a railway from debris
flow, the debris flow evaluates the effect which it has on a protective barrier, and
examines a wall and basic structure.
In this case, if debris flow can evaluate the influence which it has on a
protective barrier as an external force like earth pressure, the design method of a
retaining wall can be applied and a protective barrier can be designed.
Then, ground displacement caused by liquefaction referred to the valuation
method of external force exerted on a structure. In addition, the debris flow
examines how to evaluate the influence which it has on a protective barrier as an
external force.
As a result, the debris flow was considered as viscous fluid and the external
force which acts on a protective barrier has been presumed by asking for the
viscous coefficient and drift velocity of the debris flow. Moreover, it was shown
that applying the design method of a retaining wall and the design of a protective
barrier is attained.
Keywords: incomplete debris flow, viscous fluid, deterrence pile.
1 Introduction
In Japan in recent years, generating of a landslide disaster represented by the
debris flow resulting from a rainy season or local severe rain by a typhoon has
occurred frequently. For this reason, in Japan, erosion control enterprise is
promoted as a national policy.
A railway in Japan has many routes also on a mountain slope, and an original
countermeasure against an earth-and-sand disaster may be needed.
Keywords
incomplete debris flow, viscous fluid, deterrence pile.
Related Book
Other papers in this volume
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