CN202033140U - Three dimensional stress collector - Google Patents
Three dimensional stress collector Download PDFInfo
- Publication number
- CN202033140U CN202033140U CN201120078900XU CN201120078900U CN202033140U CN 202033140 U CN202033140 U CN 202033140U CN 201120078900X U CN201120078900X U CN 201120078900XU CN 201120078900 U CN201120078900 U CN 201120078900U CN 202033140 U CN202033140 U CN 202033140U
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- thin
- wall metal
- metal tube
- wall
- pressure transducer
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a three dimensional stress collector, comprises a thin-wall metal cylinder vertically open-ended, a plurality of pressure transducers pasted on an outer wall of the thin-wall metal cylinder, expansive concrete filling core filled in the thin-wall metal cylinder, a waterproof pressed film and a signal transmission line, wherein the pressure transducers are distributed on an external surface of the thin-wall metal cylinder along an axial direction by equal intervals, and the pressure transducers are arranged along a radial direction by same angles. The beneficial effects of the three dimensional stress collector are that stress change process of ground soil medium with different depths in a drill can be effectively measured, important basis is provided for subsequent engineering treatment, safety monitoring and alarming.
Description
Technical field
The utility model relates to the geologic hazard monitoring technology, especially relates to a kind of triaxiality collector.
Background technology
The crag avalanche is a kind of global general living type mountain region disaster, exist the position to have disguise, unstable failure has sudden, causing the calamity consequence and have calamity, is ubiquitous sudden great geology potential safety hazard in construction of city, mountain region and resident's centralized activity zone, mine and highway communication lifeline and the operation.The area of China more than 2/3rds is the mountain area, is to be subjected to one of the most serious country of crag collapse hazard in the world.According to statistics, city, China mountain region, mine and highway take place surplus the collapse hazard 5000 time along the line over past ten years, surplus the wherein calamitous avalanche 1000 time, account for about 20% more than 400 hundred million yuan of death toll people more than 1600, diameter economic losses.As in November, 2007, should ten thousand railway eboulement accidents cause 31 victims; On 06 19th, 2004, eboulement disaster incident together took place in the purple light scenic outlook that is positioned at outside the Wulingyuan core area, Zhangjiajie, Hunan, and more than 20 visitor in this visit has dead 3 people of 3 people injured; Occurred in the calamitous avalanche incident of tunnel, stockaded village, Badong County, Hubei Province national highway 318 line K1405 Gaoyang side slope on November 20th, 2007, the motor bus that license plate number is Hubei Province Q20684 was buried by sudden avalanche body moment, and 31 people are all wrecked in the car; Taiyuan, Shanxi city Xiangfen dam break on July 8th, 2006 and Loufan point mountain iron ore slump disaster incident, dead 314 people.01 month 01 morning in 2005, the eboulement accident takes place suddenly in nine Li Ban villages, Nanchong City Xiao Fo township, four societies, and in a flash, 250 cubic metres boulder rusheds down in a torrent with the gesture of toppling the mountains and overturn the seas, pound the house owed by a citizen of next two floor of mountain completely mashedly, an old man of more than 80 year old is pounded severely injured.More worryingly be, massif also has the possibility of avalanche at any time, and more than 860 cubic metre megalith splits, and directly threatens the person and the property safety of the villager of family more than 10 under the mountain.
At present, making remarkable progress aspect the drilling hole stress monitoring technology both at home and abroad, patent of invention " drilling hole stress sensor and drilling hole stress method for sensing thereof " (ZL200910103038.0) can Validity Test the STRESS VARIATION process of different depth rock soil medium in the boring.The utility model improves on this basis.
Summary of the invention
The utility model proposes a kind of triaxiality collector, it is filled out core, prevents that hydrostatic membrane and signal transmssion line constitute in the pressure transducer of thin-wall metal drum outer wall, the expansive concrete that is filled in the thin-wall metal tube by the thin-wall metal tube of longitudinal opening, a plurality of sticking card; At the equidistant vertically laying pressure transducer of the outside surface of described thin-wall metal tube, radially equal angles is laid pressure transducer.
The number of the pressure transducer that described radially equal angles is laid is 3; The length of thin-wall metal tube is 2 times that master control face constructional depth is arrived on the face of land.
Useful technique effect of the present utility model is: the STRESS VARIATION process of different depth rock soil medium in the boring of energy Validity Test, and for follow-up engineering control, security monitoring and warning provide important evidence.
Description of drawings
Fig. 1 is a triaxiality collector external structure;
Fig. 2 is the A-B sectional view of Fig. 1.
Among the figure, thin-wall metal tube 1, pressure transducer 2, expansive concrete are filled out core 3, anti-hydrostatic membrane 4, signal transmssion line 5, and L is the length of thin-wall metal tube 1, diameter, the L that d is thin-wall metal tube 1
0Be the centre distance of two pressure transducers 2.
Embodiment
The triaxiality collector is made up of five parts, and promptly the thin-wall metal tube 1 of longitudinal opening, pressure transducer 2, expansive concrete are filled out core 3, anti-hydrostatic membrane 4 and signal transmssion line 5.
Referring to accompanying drawing 1, several pressure transducer 2 sticking cards are in the outer wall of thin-wall metal tube 1, and the outside surface of thin-wall metal tube 1 is (vertically) equidistant laying pressure transducer 2 vertically.Referring to Fig. 2, (radially) pressure transducer 2 equal angles are laid on same cross section, and are more suitable in 3 of the number selections of same cross section upward pressure sensor 2, are convenient to measure the thin-wall metal tube pressure in 1 one weeks.There is waterproof membrane on pressure transducer 2 surfaces.
Filling expansive concrete in the thin-wall metal tube 1 fills out core 3, thin-wall metal tube 1 and expansive concrete and fills out anti-hydrostatic membrane 4 is arranged between the core 3, sticking obedient pressure transducer 2 places are drilled with aperture on thin-wall metal tube 1, the signal transmssion line 5 that is connected with pressure transducer 2 passes the aperture card in thin-wall metal tube 1 inwall, extends axially thin-wall metal tube 1 top (generally in the ground off-balancesheet) along thin-wall metal tube 1 inwall.Expansive concrete in the thin-wall metal tube 1 is filled out core 3, generally adopts the cement concrete of C15～C25 grade.
The length of thin-wall metal tube 1 is 2 times that crag master control face constructional depth is arrived on the face of land.
(maximum range is 800MPa, and minimum is distinguished as ± 10kPa) for the large range high precision sensor for pressure transducer 2.
When gathering the strain information of rock, near the master control architecture face of rock, punch, the triaxiality sensor is installed, the triaxiality that can gather rock master control architecture face.
Claims (3)
1. triaxiality collector, it by the thin-wall metal tube (1) of longitudinal opening, a plurality of sticking card in the pressure transducer (2) of thin-wall metal tube (1) outer wall, be filled in expansive concrete in the thin-wall metal tube (1) and fill out core (3), anti-hydrostatic membrane (4) and signal transmssion line (5) and constitute; It is characterized in that: at the equidistant vertically laying pressure transducer of the outside surface of described thin-wall metal tube (1) (2), radially equal angles is laid pressure transducer (2).
2. triaxiality collector according to claim 1 is characterized in that: the number of the pressure transducer (2) that described radially equal angles is laid is 3.
3. triaxiality collector according to claim 1 is characterized in that: the length of thin-wall metal tube (1) is 2 times that crag master control face constructional depth is arrived on the face of land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120078900XU CN202033140U (en) | 2011-03-23 | 2011-03-23 | Three dimensional stress collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120078900XU CN202033140U (en) | 2011-03-23 | 2011-03-23 | Three dimensional stress collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033140U true CN202033140U (en) | 2011-11-09 |
Family
ID=44895434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120078900XU Expired - Fee Related CN202033140U (en) | 2011-03-23 | 2011-03-23 | Three dimensional stress collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033140U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323156A (en) * | 2013-07-02 | 2013-09-25 | 陈洪凯 | Dangerous rock landslide body stress collection sensor and installation method thereof |
| CN105352635A (en) * | 2015-12-29 | 2016-02-24 | 中国矿业大学 | Spatial pre-embedded type three-dimensional stress monitoring system and method for underground coal and rock mass |
| CN106052926A (en) * | 2016-06-11 | 2016-10-26 | 陈魏魏 | Tunnel rock stratum monitor |
| CN107167270A (en) * | 2017-06-16 | 2017-09-15 | 青岛理工大学 | Device for monitoring rusty expansion stress of steel bar in rear-mounted concrete |
| CN108150209A (en) * | 2018-01-28 | 2018-06-12 | 大连海事大学 | A kind of intelligent anchor rod for being suitable for protecting and measuring Tunnel Stability |
| CN110220628A (en) * | 2019-07-03 | 2019-09-10 | 四川大学 | A method of expanding radial force when measurement cable intermediate joint operation |
-
2011
- 2011-03-23 CN CN201120078900XU patent/CN202033140U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323156A (en) * | 2013-07-02 | 2013-09-25 | 陈洪凯 | Dangerous rock landslide body stress collection sensor and installation method thereof |
| CN103323156B (en) * | 2013-07-02 | 2015-11-18 | 陈洪凯 | Dangerous rock masses stress pick-up transducers and installation method thereof |
| CN105352635A (en) * | 2015-12-29 | 2016-02-24 | 中国矿业大学 | Spatial pre-embedded type three-dimensional stress monitoring system and method for underground coal and rock mass |
| CN106052926A (en) * | 2016-06-11 | 2016-10-26 | 陈魏魏 | Tunnel rock stratum monitor |
| CN107167270A (en) * | 2017-06-16 | 2017-09-15 | 青岛理工大学 | Device for monitoring rusty expansion stress of steel bar in rear-mounted concrete |
| CN108150209A (en) * | 2018-01-28 | 2018-06-12 | 大连海事大学 | A kind of intelligent anchor rod for being suitable for protecting and measuring Tunnel Stability |
| CN110220628A (en) * | 2019-07-03 | 2019-09-10 | 四川大学 | A method of expanding radial force when measurement cable intermediate joint operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20120323 |