ITTO950197A1 - REVERSIBLE DILATOMETER FOR IN SITU MEASUREMENT OF THE SWELLING AND DEFORMATION CHARACTERISTICS OF SOFT ROCKS. - Google Patents
REVERSIBLE DILATOMETER FOR IN SITU MEASUREMENT OF THE SWELLING AND DEFORMATION CHARACTERISTICS OF SOFT ROCKS.Info
- Publication number
- ITTO950197A1 ITTO950197A1 IT95TO000197A ITTO950197A ITTO950197A1 IT TO950197 A1 ITTO950197 A1 IT TO950197A1 IT 95TO000197 A IT95TO000197 A IT 95TO000197A IT TO950197 A ITTO950197 A IT TO950197A IT TO950197 A1 ITTO950197 A1 IT TO950197A1
- Authority
- IT
- Italy
- Prior art keywords
- dilatometer
- swelling
- reversible
- measuring
- probe
- Prior art date
Links
- 239000011435 rock Substances 0.000 title abstract 5
- 230000008961 swelling Effects 0.000 title abstract 3
- 230000002441 reversible effect Effects 0.000 title abstract 2
- 238000012625 in-situ measurement Methods 0.000 title 1
- 239000012528 membrane Substances 0.000 abstract 3
- 239000000523 sample Substances 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Dilatometro reversibile per la misurazione delle caratteristiche di rigonfiamento e deformazione di rocce tenere, formato da una sonda tubolare (2), almeno una coppia di organi otturatori a membrana (12, 14) circondanti il corpo (4) della sonda (2) e destinati ad essere riempiti con acqua in pressione ed una cella di misurazione (24) a membrana, circondante il corpo (4) della sonda (2) a cui è associato un trasduttore di pressione (32) ed una pluralità di trasduttori di spostamento (34). Acqua è alimentata nello spazio compreso tra gli otturatori (12, 14) e la cella di misurazione (24) per provocare il rigonfiamento della roccia tenera e misurare lo spostamento radiale della parete a membrana della cella (24) causata dal rigonfiamento della roccia. Lo strumento può essere utilizzato come dilatometro, applicando una pressione uniforme al foro di carotaggio e misurandone la deformazione radiale, o come dilatometro inverso (contrattometro) per misurare il rigonfiamento della roccia intorno al foro di carotaggio.(fig. 1).Reversible dilatometer for measuring the swelling and deformation characteristics of soft rocks, formed by a tubular probe (2), at least a pair of membrane obturator elements (12, 14) surrounding the body (4) of the probe (2) and intended to be filled with pressurized water and a measuring cell (24) with membrane, surrounding the body (4) of the probe (2) with which a pressure transducer (32) and a plurality of displacement transducers (34) are associated . Water is fed into the space between the shutters (12, 14) and the measuring cell (24) to cause the soft rock to swell and measure the radial displacement of the membrane wall of the cell (24) caused by the rock swell. The instrument can be used as a dilatometer, applying uniform pressure to the coring hole and measuring its radial deformation, or as an inverse dilatometer (contractometer) to measure the swelling of the rock around the coring hole. (Fig. 1).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 94111266 CN1115024A (en) | 1994-03-14 | 1994-03-14 | In-situ test instrument for soft rock expansion |
Publications (2)
Publication Number | Publication Date |
---|---|
ITTO950197A0 ITTO950197A0 (en) | 1995-03-14 |
ITTO950197A1 true ITTO950197A1 (en) | 1995-09-14 |
Family
ID=5035154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT95TO000197A ITTO950197A1 (en) | 1994-03-14 | 1995-03-14 | REVERSIBLE DILATOMETER FOR IN SITU MEASUREMENT OF THE SWELLING AND DEFORMATION CHARACTERISTICS OF SOFT ROCKS. |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1115024A (en) |
IT (1) | ITTO950197A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101487837B (en) * | 2009-02-13 | 2012-07-25 | 太原理工大学 | Tester for changing soft rock expandability by electro-chemistry |
CN102519796B (en) * | 2012-01-05 | 2013-06-19 | 铁道第三勘察设计院集团有限公司 | Portable rock expansion tester |
CN103499329B (en) * | 2013-09-10 | 2017-01-11 | 中国工程物理研究院化工材料研究所 | Device and method for testing radial deformation of rubber compression test-piece |
CN104088666B (en) * | 2014-07-09 | 2016-03-09 | 中国电建集团华东勘测设计研究院有限公司 | A kind of home position testing method of buried soft rock tunnel and in-situ test structure |
CN106285666B (en) * | 2016-10-25 | 2019-03-15 | 中国科学院力学研究所 | A kind of shallow-layer soil layer mechanics parameter monitoring method of permafrost region gas hydrates drilling |
CN107589058A (en) * | 2017-09-28 | 2018-01-16 | 上海岩土工程勘察设计研究院有限公司 | Double plunger water filling infiltration testing apparatus and its method of work in a kind of hole |
-
1994
- 1994-03-14 CN CN 94111266 patent/CN1115024A/en active Pending
-
1995
- 1995-03-14 IT IT95TO000197A patent/ITTO950197A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN1115024A (en) | 1996-01-17 |
ITTO950197A0 (en) | 1995-03-14 |
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