CN101858808B - Osmotic pressure measuring device for high water pressure test system - Google Patents
Osmotic pressure measuring device for high water pressure test system Download PDFInfo
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- CN101858808B CN101858808B CN 201010158297 CN201010158297A CN101858808B CN 101858808 B CN101858808 B CN 101858808B CN 201010158297 CN201010158297 CN 201010158297 CN 201010158297 A CN201010158297 A CN 201010158297A CN 101858808 B CN101858808 B CN 101858808B
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- osmotic pressure
- steel tube
- pressure hole
- osmometer
- weldless steel
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Abstract
The invention relates to an osmotic pressure measuring device for a high water pressure test system. The device comprises that: an osmotic pressure hole is formed in rock mass; one end of a seamless steel tube stretches into the bottom of the osmotic pressure hole; an osmometer is fixed at the bottom of the seamless steel tube; an osmometer cable passes through the seamless steel tube and stretches out of the osmotic pressure hole; an osmometer cable leading-out end of the seamless steel tube is blocked by an epoxy resin plug; one end of the seamless steel tube, which fixes the osmometer, is provided with a floral tube section; the outer side of the seamless steel tube above the floral tube section is provided with a rubber clapboard; a water stop kelp is bound on the rubber clapboard; an injection pipe is arranged in the osmotic pressure hole and stretches into the water stop kelp; a position above the water stop kelp of the osmotic pressure hole is blocked by a pure expanding cement block section; a position near the orifice of the osmotic pressure hole is blocked by a cement mortar plug; and an exhaust pipe is also arranged in the osmotic pressure hole and stretches into the pure expanding cement block section. The device has the advantages of simple structure, convenient operation and capability of effectively ensuring the reliability of a measuring element.
Description
Technical field
The present invention relates to be used for the osmotic pressure measuring equipment that the permeability test of rock mass original position high pressure water injection is carried out in fields such as Hydraulic and Hydro-Power Engineering, water supply project, petroleum engineering, especially the osmotic pressure measuring equipment that uses when higher at the rock mass osmotic pressure.
Background technology
Under the prior art condition, general simple employing modified cement mortar in osmotic pressure hole or modified water mud carry out the technology of grout sealing in the high pressure water injection test.The shortcoming of this technology is to be easy to cause osmometer to be tied by follow-up priming charge mud sol in the filling process, causes the inefficacy of osmometer, does not reach effective measurement effect of osmotic pressure, and its construction quality is difficult to guarantee.Simultaneously, because an osmometer is only installed in a certain position in the rock mass, after very appearance caused osmometer to lose efficacy, this osmotic pressure hole osmotic pressure measured the consequence of utter failure.
Summary of the invention
The technical problem to be solved in the present invention is that the deficiency at existing osmotic pressure measurement technology exists provides a kind of osmotic pressure measuring equipment that is used for the high pressure water injection pilot system that can effectively guarantee osmometer installation quality.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of osmotic pressure measuring equipment that is used for the high pressure water injection pilot system, it comprises the osmotic pressure hole that is opened in the rock mass, one end of one weldless steel tube stretches into bottom, osmotic pressure hole, one osmometer is fixed on the bottom of this weldless steel tube, its osmometer cable passes weldless steel tube and reaches beyond the osmotic pressure hole, and the osmometer cable exit of this weldless steel tube adopts the shutoff of epoxy resin plug; More than weldless steel tube one end of fixing osmometer, the floral tube section that is laid with the limbers on it is set, weldless steel tube arranged outside one rubber separator that the floral tube section is above, colligation sealing sea-tangle above the rubber separator; One Grouting Pipe also is installed in the osmotic pressure hole, and this Grouting Pipe extend into sealing sea-tangle place; The sealing sea-tangle in osmotic pressure hole is above to carry out shutoff by the pure slurry of Grouting Pipe injection micro-expansion cement slurry formation expansive cement block section, adopts the sand-cement slurry plug shutoff that is formed by the micro-expansion cement mortar at the aperture in distance osmotic pressure hole environs; One gas outlet also is installed in the osmotic pressure hole in addition, and this gas outlet extend into place, the pure slurry of expansive cement block section.
Further improvement of the present invention is that weldless steel tube also is connected with tensimeter and drainage exhaust switch beyond the aperture in this osmotic pressure hole.
Of the present invention anotherly further be improved to, the outside of this osmometer coat the protection sand pocket.
Of the present inventionly one further improve this again, this floral tube section is that 20CM is long, and this sealing sea-tangle is that 100CM is long, and this rubber separator is arranged on the above 15CM of this floral tube section place.
Compared with prior art, the invention has the beneficial effects as follows: the present invention passes through to adopt fixedly osmometer of weldless steel tube, thereby not only is convenient to the accurate installing and locating of osmometer position, has also made things convenient for the installation of tensimeter and drainage exhaust switch; By the setting of rubber separator and sealing sea-tangle, can effectively osmometer and follow-up priming charge mud be separated, play the effect of protection osmometer; By measure the water pressure in the weldless steel tube at the aperture of weldless steel tube setting pressure table, can play osmotic pressure and measure the contrast effect, and can measure achievement with osmometer and verify mutually, the osmotic pressure of avoiding osmometer to lose efficacy causing is measured failure.Generally speaking, technological design of the present invention is reasonable, and is simple and reliable for structure, easy to operate, and can not cause damage to osmometer and lead in installation of the present invention and the shutoff process, can guarantee the reliability of measuring sensor effectively.
Description of drawings
Fig. 1 is a high pressure water injection pilot system osmotic pressure measuring equipment synoptic diagram.
Among the figure:
1-epoxy resin plug 2-drainage exhaust switch 3-tensimeter
The pure slurry of 4-Grouting Pipe 5-sand-cement slurry plug 6-expansive cement block section
7-sealing sea-tangle 8-osmometer 9-protects sandbag
10-floral tube section 11-rubber separator 12-weldless steel tube
13-gas outlet 14-threeway 15-osmometer cable
Embodiment
As shown in Figure 1, the present invention includes an end that is opened in 16, the weldless steel tubes 12 in osmotic pressure hole in the rock mass and stretch into 16 bottoms, osmotic pressure hole.An osmometer 8 is fixed on the bottom of weldless steel tube 12, and its cable 15 passes weldless steel tube 12 and reaches beyond the osmotic pressure hole 16, and the outside of this osmometer 8 coats protection sand pocket 9.The long floral tube section 10 of 20cm is set more than weldless steel tube 12 1 ends of fixing osmometer 8, and promptly this floral tube section 10 is provided with the inside and outside limbers 17 that connects, and makes the outer water bodys connection of the inner and osmometer of weldless steel tube 8.Arranged outside one rubber separator 11 at the floral tube section 10 above 15cm places of weldless steel tube; begin upwards colligation sealing sea-tangle 7 in the 100cm scope from rubber separator 11; thereby can effectively osmometer 8 and follow-up priming charge mud be separated, play the effect of protection osmometer 8.One Grouting Pipe 4 also is installed in the osmotic pressure hole 16, and this Grouting Pipe 4 extend into sealing sea-tangle 7 places.It is that 0.01% micro-expansion cement slurry forms the pure slurry of expansive cement block section 6 and carries out shutoff that the sealing sea-tangle in osmotic pressure hole 16 is injected expansion coefficient by Grouting Pipe 4 more than 7, and adopting by expansion coefficient at the aperture in distance osmotic pressure hole 16 environs is cement mortar plug 5 shutoff that 0.01% micro-expansion cement mortar forms.One gas outlet 13 also is installed in the osmotic pressure hole 16 in addition, and this gas outlet 13 extend into 6 places, the pure slurry of expansive cement block section, to get rid of the air in the pure slurry of cement.Cable exit in the weldless steel tube 12 adopts 1 shutoff of epoxy resin plug, thereby can effectively avoid osmometer cable 15 is caused damage.Be connected with two threeways 14 on the weldless steel tube beyond the aperture in osmotic pressure hole 16, it connects tensimeter 3 and drainage exhaust switch 2 respectively.
Claims (4)
1. osmotic pressure measuring equipment that is used for the high pressure water injection pilot system, it comprises the osmotic pressure hole that is opened in the rock mass, it is characterized in that, one end of one weldless steel tube stretches into bottom, osmotic pressure hole, one osmometer is fixed on the bottom of this weldless steel tube, its osmometer cable passes weldless steel tube and reaches beyond the osmotic pressure hole, and the osmometer cable exit of this weldless steel tube adopts the shutoff of epoxy resin plug; More than weldless steel tube one end of fixing osmometer, the floral tube section that is laid with the limbers on it is set, weldless steel tube arranged outside one rubber separator that the floral tube section is above, colligation sealing sea-tangle above the rubber separator; One Grouting Pipe also is installed in the osmotic pressure hole, and this Grouting Pipe extend into sealing sea-tangle place; The sealing sea-tangle in osmotic pressure hole is above to carry out shutoff by the pure slurry of Grouting Pipe injection micro-expansion cement slurry formation expansive cement block section, adopts the sand-cement slurry plug shutoff that is formed by the micro-expansion cement mortar at the aperture in distance osmotic pressure hole environs; One gas outlet also is installed in the osmotic pressure hole in addition, and this gas outlet extend into place, the pure slurry of expansive cement block section.
2. the osmotic pressure measuring equipment that is used for the high pressure water injection pilot system according to claim 1 is characterized in that, weldless steel tube also is connected with tensimeter and drainage exhaust switch beyond the aperture in this osmotic pressure hole.
3. the osmotic pressure measuring equipment that is used for the high pressure water injection pilot system according to claim 1 is characterized in that, the outside of this osmometer coats the protection sand pocket.
4. the osmotic pressure measuring equipment that is used for the high pressure water injection pilot system according to claim 1 is characterized in that, this floral tube section is that 20CM is long, and this sealing sea-tangle is that 100CM is long, and this rubber separator is arranged on the above 15CM of this floral tube section place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158297 CN101858808B (en) | 2010-04-28 | 2010-04-28 | Osmotic pressure measuring device for high water pressure test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010158297 CN101858808B (en) | 2010-04-28 | 2010-04-28 | Osmotic pressure measuring device for high water pressure test system |
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| CN101858808A CN101858808A (en) | 2010-10-13 |
| CN101858808B true CN101858808B (en) | 2011-08-31 |
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| CN 201010158297 Active CN101858808B (en) | 2010-04-28 | 2010-04-28 | Osmotic pressure measuring device for high water pressure test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866096A (en) * | 2012-09-20 | 2013-01-09 | 中国水电顾问集团中南勘测设计研究院 | Anti-seepage quality detection and evaluation method for rock mass of high-pressure water channel |
Families Citing this family (11)
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| CN102608015A (en) * | 2012-03-08 | 2012-07-25 | 长沙理工大学 | Rock mass anisotropy osmotic coefficient in-situ test method and device thereof |
| CN103234490B (en) * | 2013-05-06 | 2016-09-07 | 中国电建集团中南勘测设计研究院有限公司 | A kind of water seal underground oil storage cave depot water seal effect measure and control device |
| CN103306721B (en) * | 2013-06-18 | 2016-04-20 | 中铁隧道集团有限公司 | A kind of sealing device of pilot vacuum downcast pipe end head and method thereof |
| CN103821498A (en) * | 2014-03-13 | 2014-05-28 | 中国水电顾问集团中南勘测设计研究院有限公司 | Observation instrument embedded blockage system for drilling hole high-pressure packer test |
| CN104568286A (en) * | 2014-12-22 | 2015-04-29 | 山东大学 | Osmometer and method convenient for sensor replacement |
| CN106053319A (en) * | 2016-07-29 | 2016-10-26 | 中国电建集团华东勘测设计研究院有限公司 | Testing device and method for osmotic gradient of anisotropic rock mass |
| CN107014734A (en) * | 2017-05-16 | 2017-08-04 | 山东大学 | One kind is used for tunnel surrounding internal penetration device for pressure measurement and measuring method |
| CN109594924A (en) * | 2018-12-28 | 2019-04-09 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of osmometer hole structure pattern |
| CN109827885A (en) * | 2019-03-18 | 2019-05-31 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of dyke multilayer is the same as position seepage flow pressure measuring unit |
| CN110018103B (en) * | 2019-04-25 | 2021-08-03 | 江西理工大学 | Building foundation on-site penetration test device and test method thereof |
| CN111351742B (en) * | 2020-03-31 | 2022-07-01 | 河北建筑工程学院 | Ecological bag permeability parameter measuring device and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2080526B (en) * | 1980-07-16 | 1984-05-16 | Molloy Robert Edward | Thermometer |
| DE19640063C1 (en) * | 1996-09-28 | 1998-01-08 | Forschungszentrum Juelich Gmbh | Osmotic pressure measurement arrangement |
| CN101354334B (en) * | 2008-09-08 | 2011-05-18 | 石家庄铁道学院 | System for measuring in-situ small-sized permeability coefficient based on transient pressure pulse method |
| CN201662523U (en) * | 2010-04-28 | 2010-12-01 | 中国水电顾问集团中南勘测设计研究院 | Osmotic pressure measurement device for high-pressure packer testing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866096A (en) * | 2012-09-20 | 2013-01-09 | 中国水电顾问集团中南勘测设计研究院 | Anti-seepage quality detection and evaluation method for rock mass of high-pressure water channel |
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| CN101858808A (en) | 2010-10-13 |
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Owner name: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + Free format text: FORMER NAME: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP |
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Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: Company limited of Central-South survey and design research institute of electricity Jian group of China Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: Zhongnan Prospecting Design Inst. China Hydrauelectric Consultant Group |