JP4277219B2 - 岩盤の亀裂密度と飽和度の推定方法 - Google Patents
岩盤の亀裂密度と飽和度の推定方法 Download PDFInfo
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- JP4277219B2 JP4277219B2 JP2005052995A JP2005052995A JP4277219B2 JP 4277219 B2 JP4277219 B2 JP 4277219B2 JP 2005052995 A JP2005052995 A JP 2005052995A JP 2005052995 A JP2005052995 A JP 2005052995A JP 4277219 B2 JP4277219 B2 JP 4277219B2
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Description
Ts S波走時
Tp P波走時
ρ 亀裂密度
Sw 飽和度
η 電気伝導度
Claims (1)
- 岩盤の亀裂密度および飽和度を推定するための方法であって、
岩盤におけるS波速度と亀裂密度との関係を表す第1の関係、P波速度と亀裂密度と飽和度との関係を表す第2の関係、比抵抗値と飽和度との関係を表す第3の関係をそれぞれ予め求めておき、
推定対象の岩盤に対して弾性波トモグラフィおよび比抵抗トモグラフィによる計測と解析を行って岩盤のS波速度、P波速度、比抵抗値をそれぞれ測定し、
S波速度の測定値から前記第1の関係に基づいて亀裂密度を算定し、
亀裂密度の推定値とP波速度の測定値から前記第2の関係に基づいて飽和度の第1算定値を算定するとともに、比抵抗値の測定値から前記第3の関係に基づいて飽和度の第2算定値を算定し、それら第1算定値と第2算定値とを比較してその差が一定範囲を越えている場合には前記第1〜第3の関係を微修正しつつ第1算定値と第2算定値の算定を繰り返してその差を一定範囲内に収斂させることを特徴とする岩盤の亀裂密度と飽和度の推定方法。
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JP2006234740A JP2006234740A (ja) | 2006-09-07 |
JP4277219B2 true JP4277219B2 (ja) | 2009-06-10 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101115468B1 (ko) | 2009-10-01 | 2012-02-24 | 중앙대학교 산학협력단 | 표면파와 전기비저항을 동시에 사용하는 지반 탐사방법 |
CN109541690B (zh) * | 2018-11-30 | 2020-05-19 | 中铁第四勘察设计院集团有限公司 | 一种浅层介质结构面松散程度评价方法 |
CN110794039B (zh) * | 2019-11-06 | 2021-12-21 | 长江勘测规划设计研究有限责任公司 | 利用岩体波速计算帷幕灌浆岩体裂隙充填率的方法 |
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