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Title:
EVALUATION METHOD OF OUTER DEFORMATION OF DAM
Document Type and Number:
Japanese Patent JP2008076117
Kind Code:
A
Abstract:

To provide an evaluating method of an outer deformation of a dam, which evaluates the outer deformation level of a dam quickly and precisely after occurrence of an earthquake.

An evaluation method of the outer deformation level of a dam includes: measuring the outer deformation level in real time using a plurality of GPS receiving devices set at the dam; calculating the displacement data of the dam from the obtained time series of measuring data through a CPU to store in a storage means; and also calculating the processed displacement data after filtering processing and smoothing processing of the displacement data to store in a storage means. With the signal of an earthquake occurring, the standard deviation in the dam displacement data before the earthquake and the average value x of the dam displacement data after the earthquake are calculated to calculate the displacement with Z-estimation through the CPU using the average value x and the standard deviation before the earthquake.


Inventors:
SATO WATARU
IWASAKI TOMOHARU
IIJIMA KOICHIRO
ANYOJI MANABU
OYA MITSUHIRO
SODA HIDEKI
Application Number:
JP2006253567A
Publication Date:
April 03, 2008
Filing Date:
September 19, 2006
Export Citation:
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Assignee:
KOKUSAI KOGYO CO LTD
JAPAN WATER AGENCY
International Classes:
G01C15/00; E02B7/00; G01D21/00; G01S19/14; G01S19/43
Domestic Patent References:
JP2003217054A2003-07-31
JP2003185732A2003-07-03
JP2004144623A2004-05-20
Attorney, Agent or Firm:
Masahisa Takahashi
Hiroshi Matsumoto