CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
发明人:
MIYAGAWA KIMIO,宮川 公雄
申请号：
JP2011168843
公开号：
JP2013032956A
申请日:
2011.08.01
申请国别(地区):
JP
年份:
2013
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide a method and device for evaluating a condition of a fracture of a rock mass by radon, which can accurately evaluate the condition of the fracture of the rock mass in a predetermined area by using the radon.SOLUTION: Different quantities of water are circulated between a predetermined area in a rock mass and the outside of the rock mass, and a width wn of a fracture between a first hole passage 2 and a second hole passage 7 in a rock mass 1 (fracture of the rock mass in the predetermined area) is obtained, so that a surface area S (=2πr2) of the fracture is evaluated by a first radius r1 and a second radius r2.COPYRIGHT: (C)2013,JPO&INPIT【課題】ラドンを用いて所定の区域の岩盤の間隙の状況を的確に評価することができるラドンによる岩盤の間隙状況の評価方法及び評価装置を提供する。【解決手段】岩盤内部の所定区域と岩盤外部との間で、容量が異なる水を循環させて岩盤1内部の第1孔通路2と第2孔通路7の間の間隙(所定の区域の岩盤の間隙)の幅wnを求め、第1半径r1及び第2半径r2により間隙の表面積S(=2πr2)を評価する。【選択図】図1
