JPS5660330A - Measuring method dependent upon ae for earth pressure in hole - Google Patents
Measuring method dependent upon ae for earth pressure in holeInfo
- Publication number
- JPS5660330A JPS5660330A JP13618779A JP13618779A JPS5660330A JP S5660330 A JPS5660330 A JP S5660330A JP 13618779 A JP13618779 A JP 13618779A JP 13618779 A JP13618779 A JP 13618779A JP S5660330 A JPS5660330 A JP S5660330A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- stress
- boring
- boring hole
- receivers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To utilize a boring hole to obtain the initial state of the ground around the boring hole without gathering of rock, by inserting the sonde equipped with plural AE receivers into the boring hole digged in the ground.
CONSTITUTION: When boring is performed in rock 1, stress of the rock is released on hole wall 3 of boring hole 2, and stress components vertical to the hole wall become O. Under this state, sonde 4 is inserted into boring hole 2. Sonde 4 consists of rubber tube 5 mainly and is provided with plural AE receivers 6a, 6b are 6c different in direction and pressure sensor 7. If AE receivers 6a, 6b and 6c to measure only AEs from (a), (b) and (c) directions are provided in this manner, a graph showing the relation between the AE generation frequency and stress for every direction can be produced, and initial stress in respective directions can be obtained from the inflection point.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54136187A JPS6024413B2 (en) | 1979-10-22 | 1979-10-22 | How to measure ground pressure in a borehole using AE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54136187A JPS6024413B2 (en) | 1979-10-22 | 1979-10-22 | How to measure ground pressure in a borehole using AE |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5660330A true JPS5660330A (en) | 1981-05-25 |
JPS6024413B2 JPS6024413B2 (en) | 1985-06-12 |
Family
ID=15169373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54136187A Expired JPS6024413B2 (en) | 1979-10-22 | 1979-10-22 | How to measure ground pressure in a borehole using AE |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6024413B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS577553A (en) * | 1980-06-17 | 1982-01-14 | Toda Constr Co Ltd | Measuring method for excessive stress generated in rock bed |
JPS57174520A (en) * | 1981-04-18 | 1982-10-27 | Hanshin Consultant:Kk | Method and apparatus for measuring strength of ground |
JPS6145917A (en) * | 1984-08-09 | 1986-03-06 | Penta Ocean Constr Co Ltd | Measuring device for subsidence of ground |
US4733567A (en) * | 1986-06-23 | 1988-03-29 | Shosei Serata | Method and apparatus for measuring in situ earthen stresses and properties using a borehole probe |
JP2021060295A (en) * | 2019-10-08 | 2021-04-15 | 株式会社安藤・間 | Main stress calculation program and method for calculating main stress |
-
1979
- 1979-10-22 JP JP54136187A patent/JPS6024413B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS577553A (en) * | 1980-06-17 | 1982-01-14 | Toda Constr Co Ltd | Measuring method for excessive stress generated in rock bed |
JPS57174520A (en) * | 1981-04-18 | 1982-10-27 | Hanshin Consultant:Kk | Method and apparatus for measuring strength of ground |
JPS6145917A (en) * | 1984-08-09 | 1986-03-06 | Penta Ocean Constr Co Ltd | Measuring device for subsidence of ground |
JPH0347683B2 (en) * | 1984-08-09 | 1991-07-22 | Penta Ocean Construction | |
US4733567A (en) * | 1986-06-23 | 1988-03-29 | Shosei Serata | Method and apparatus for measuring in situ earthen stresses and properties using a borehole probe |
JP2021060295A (en) * | 2019-10-08 | 2021-04-15 | 株式会社安藤・間 | Main stress calculation program and method for calculating main stress |
Also Published As
Publication number | Publication date |
---|---|
JPS6024413B2 (en) | 1985-06-12 |
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