GB1167270A - Improved Method and Apparatus for Testing the State of Stress in a Solid especially Soil - Google Patents
Improved Method and Apparatus for Testing the State of Stress in a Solid especially SoilInfo
- Publication number
- GB1167270A GB1167270A GB4455767A GB4455767A GB1167270A GB 1167270 A GB1167270 A GB 1167270A GB 4455767 A GB4455767 A GB 4455767A GB 4455767 A GB4455767 A GB 4455767A GB 1167270 A GB1167270 A GB 1167270A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stress
- testing
- state
- improved method
- sept
- 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.)
- Expired
Links
- 239000007787 solid Substances 0.000 title abstract 3
- 239000002689 soil Substances 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000011435 rock Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/006—Measuring wall stresses in the borehole
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
1,167,270. Measuring stress in solids electrically. LABORATORIO NACIONAL DE ENGENHARIA CIVIL. Sept. 29, 1967 [Sept. 29, 1966], No.44557/67. Heading G1N. Apparatus for determining the stress in e.g. soil or rock, comprises a tapered cylinder of plastic material which has embedded in it a number of resistance strain gauges aligned in different directions to determine the magnitude and direction of the local stress. The cylinder is let into a borehole, secured to the wall by the same plastic material, and subsequently removed by cutting out a much larger core, the change in stress shown by the strain gauges being indicative of the initial stress in the solid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT4648466 | 1966-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1167270A true GB1167270A (en) | 1969-10-15 |
Family
ID=20081645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4455767A Expired GB1167270A (en) | 1966-09-29 | 1967-09-29 | Improved Method and Apparatus for Testing the State of Stress in a Solid especially Soil |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4812809B1 (en) |
DE (1) | DE1634453A1 (en) |
ES (1) | ES345498A1 (en) |
GB (1) | GB1167270A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0344926A1 (en) * | 1988-05-06 | 1989-12-06 | Eti Explosives | Material stress monitor |
EP0590987A2 (en) * | 1992-10-01 | 1994-04-06 | Halliburton Company | Determining orientation of a wellbore relative to formation stress fields |
-
1967
- 1967-09-27 ES ES345498A patent/ES345498A1/en not_active Expired
- 1967-09-28 DE DE19671634453 patent/DE1634453A1/en active Pending
- 1967-09-29 JP JP6284867A patent/JPS4812809B1/ja active Pending
- 1967-09-29 GB GB4455767A patent/GB1167270A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0344926A1 (en) * | 1988-05-06 | 1989-12-06 | Eti Explosives | Material stress monitor |
US4962668A (en) * | 1988-05-06 | 1990-10-16 | Preston Christoper J | Material stress monitor |
EP0590987A2 (en) * | 1992-10-01 | 1994-04-06 | Halliburton Company | Determining orientation of a wellbore relative to formation stress fields |
EP0590987A3 (en) * | 1992-10-01 | 1995-02-22 | Halliburton Co | Determining orientation of a wellbore relative to formation stress fields. |
Also Published As
Publication number | Publication date |
---|---|
DE1634453A1 (en) | 1970-10-29 |
ES345498A1 (en) | 1968-11-16 |
JPS4812809B1 (en) | 1973-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |