Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANALYZING METHOD FOR EVALUATING THAT LONG TERM VARIATION OF GEOLOGICAL ENVIRONMENT AFFECTS GROUND WATER FLOW
Document Type and Number:
Japanese Patent JP2009156837
Kind Code:
A
Abstract:

To provide an analyzing method for a ground water flow in consideration of long term variation of geological environment, like topological region and geological structure, water permeation parameter or the like.

This analyzing method includes: dividing a period to be analyzed which goes back to the past determined from present into N time steps; forming FEM model for each time step; carrying out the ground water flow analysis with FEM model for the oldest time step 1; inputting this analysis result into FEM model of the following time step 2 as an initial value; and carrying out unsteady saturating/unsaturating ground water flow analysis by inputting predetermined boundary condition, while assuming that topological region and geological structure do not vary in the time step 2. Thus, after the above processes, the analysis result of the previous time step is input into the following time step's FEM model as an initial value, it asks for the ground water flow place by repeating the process which inputs predetermined boundary condition and analyzes it into time step N, it is evaluated that long term variation of geological environment affects the ground water flow.


Inventors:
IMAI HISASHI
SHIOZAKI ISAO
Application Number:
JP2007338643A
Publication Date:
July 16, 2009
Filing Date:
December 28, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HAZAMA GUMI
International Classes:
G01V9/02; E02D1/00; G06F19/00
Domestic Patent References:
JP2006242893A2006-09-14
JP2007072753A2007-03-22
Other References:
JPN6012059318; 鹿園直建、小川泰正、大谷晴啓: '高レベル放射性廃棄物地層処分における地下水・熱水-岩石相互作用の重要性' 資源地質 Vol.56 No.2, 2006, P.115-124
JPN6012059319; 今井久: '広域地下水流動解析における地形モデル化の影響について' 第58回年次学術講演会講演概要集 , 20030901, P.81,82, 土木学会
JPN6012059322; 三枝博光、他: '長期的な地形変化が深部地下水流動特性に与える影響評価の試み' 第61回年次学術講演会講演概要集 , 20060901, P.243,244, 土木学会
JPN6012059327; 広中良和、他: '鹿島建設における放射性廃棄物処分関連技術の開発' デコミッショニング技報 第29号, 20040331, P.25-42
Attorney, Agent or Firm:
Hajime Sakai
Masahiro Kurai