CN103776417A - Device for measuring cryolithozone stratum deformation - Google Patents
Device for measuring cryolithozone stratum deformation Download PDFInfo
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- CN103776417A CN103776417A CN201410014693.XA CN201410014693A CN103776417A CN 103776417 A CN103776417 A CN 103776417A CN 201410014693 A CN201410014693 A CN 201410014693A CN 103776417 A CN103776417 A CN 103776417A
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Abstract
Disclosed is a device for measuring cryolithozone stratum deformation. The device includes a top board, a wire-drawing displacement sensor, a pile casing, a pile casing bottom plate and a settlement rod. The top board is connected with the pile casing through fixing bolts. The pile casing is connected with the pile casing bottom plate through screws. A waterproof inner cylinder is welded on the pile casing bottom plate. A support is arranged in the pile casing. The displacement sensor is fixed on the support. One end of the settlement rod is connected with a settlement rod bottom plate and the other end of the settlement rod passes through the waterproof inner cylinder. The wire-drawing displacement sensor is connected through a steel wire rope. The wire-drawing displacement sensor is connected with a data acquisition instrument through a signal wire. In the device for measuring the cryolithozone stratum deformation, connection of the wire-drawing displacement sensor with the data acquisition instrument and the settlement rod is adopted so that displacement data of the cryolithozone stratum deformation can be measured precisely. The displacement sensor adopts a wire drawing type and measurement scope can be controlled freely so that precise measurement of the cryolithozone stratum deformation is realized. Moreover, the sealing function of the top board and the water isolation function of the waterproof inner cylinder can prevent a measurement error problem which happens because moisture enters and freezes the wire-drawing displacement sensor. The device for measuring the cryolithozone stratum deformation is simple in structure, convenient to operate and easy to maintain; and on-site installation in parts can prevent damages of the device.
Description
Technical field
The present invention relates to permafrost region fields of measurement, is a kind of device for measuring frozen district stratum deformation specifically.
Background technology
Nowadays, on market, exist the apparatus of multiple measurement stratum deformation, as rod-type displacement meter, magnet ring sedimentometer etc., however these at the comparatively ripe instrument of conventional area application but due to comparatively rugged environment and not almost being applied at permafrost region of Permafrost Area.In Permafrost Area, below the upper limit, frozen soil exists always, can not melt along with the change in season.In order to prevent moisture from entering, different parts has wrapped up respectively transition conduit and protection tube to rod-type displacement meter, these two kinds of casing diameters are different can produce relative sliding with the distortion of soil layer, but after rod-type displacement meter is embedded in frozen soil, frozen soil can produce sleeve pipe the position frozen of relative sliding, make deformation data have very large error, and rod-type displacement meter in the time laying need first its assembling is completed after entirety put in boring, this has just caused because length is damaged greatly and easily very much in installation course; In addition, magnet ring sedimentometer in use finds that its precision is lower, and needs manually regularly to go to measure, and this is very inconvenient in meagrely-populated Permafrost Area.At present, observe at the spirit-leveling instrument that remains that the application of ever frost region measurement road and rail subgrade deformation is general, but not only waste time and energy in employing measurement of the level process, and error is larger, it is very serious making deformation data fluctuation.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of device for measuring frozen district stratum deformation, be applicable to Permafrost Area can automatic Observation deformation device, to replace the leveling observation of comparatively wasting time and energy at present.
Technical solution of the present invention is:
For a device for measuring frozen district stratum deformation, comprise top board, stay-supported type displacement sensor, casing, casing base plate and sedimentation bar, top board is connected by set bolt with casing; Casing is connected by screw with casing base plate; On casing base plate, weld waterproof inner core; In casing, be provided with support; Fixed displacement sensor on support; One end of sedimentation bar connects sedimentation bar base plate, and the other end is through waterproof inner core, by wire rope connecting stay wire formula displacement transducer; Stay-supported type displacement sensor is adopted instrument by signal wire linking number.
Above-mentioned sedimentation bar is provided with sleeve pipe outward.
Between above-mentioned top board and casing, be provided with pad, or O-ring seal.
Above-mentioned casing base plate is provided with waterproof inner core.
The present invention is owing to taking above technical scheme, and it has the following advantages:
1, the present invention adopts being connected of stay-supported type displacement sensor and data collecting instrument, sedimentation bar, can accurately record the displacement data of permafrost region stratum deformation, what wherein level sensor adopted is stay-supported, and measurement range can freely be controlled, and realizes the accurate measurement of permafrost region stratum deformation.
2, one end of stay-supported type displacement sensor and sedimentation bar is put into casing by the present invention, by the sealing of top board and the impermeable role of waterproof inner core, can prevent from entering because of moisture the measuring error problem that stay-supported type displacement sensor occurs of freezing.
3, the present invention is simple in structure, and the damage that can avoid device is installed by on-the-spot branch, easy to operate, is easy to inspection and maintenance.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention.
In figure: 1-top board, 2-set bolt, 3-stay-supported type displacement sensor, 4-casing, 5-support, 6-wire rope, 7-casing base plate, 8-waterproof inner core, 9-sedimentation bar, 10-sleeve pipe, 11-sedimentation bar base plate, 12-signal wire
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, a kind of device for measuring frozen district stratum deformation, comprises top board 1, stay-supported type displacement sensor 3, casing 4, casing base plate 7 and sedimentation bar 9, and top board 1 is connected by set bolt 2 with casing 4; Casing 4 is connected by screw with casing base plate 7; On casing base plate 7, weld waterproof inner core 8; In casing 4, be provided with support 5; Fixed displacement sensor 3 on support 5; One end of sedimentation bar 9 connects sedimentation bar base plate 11, and the other end is through waterproof inner core 8, by wire rope 6 connecting stay wire formula displacement transducers 3; Stay-supported type displacement sensor 3 is adopted instrument by signal wire 12 linking numbers.
The outer sleeve pipe 10 that is provided with of sedimentation bar 9.
Embodiment
When on-the-spot installation, first drill through the hole that a diameter is slightly larger than sedimentation bar base plate 11, then sedimentation bar 9 is put among hole, in the outside of sedimentation bar, one deck sleeve pipe 10 is installed, between sedimentation bar 9 and sleeve pipe 10, spread butter and to prevent frost heave action, sedimentation bar is extracted.
Installing before casing 4, first stay wire displacement sensor 3 is fixed on support 5, then by casing 4 along screw tightening on casing base plate 7.
At the hole top drilling through, hole diameter is expanded to casing 4 can be put into, sedimentation bar 9 stretches in casing 4 from waterproof inner core 8, between sedimentation rod bush 10 and waterproof inner core 8, be wiped with butter and both not only can be moved freely relatively can also prevent that aqueous water or steam from entering in casing 4, sedimentation bar 9 tops are exposed 1 ~ 2cm left and right and are advisable in casing 4 inside.
Then the wire rope of stay wire displacement sensor 36 ends are fixedly connected with sedimentation bar 9 tops, the length in reserve apparent bed thickness of wire rope 6 and determining, in the time of soil body generation sedimentation, wire rope 6 can take in stay wire displacement sensor 3, and in the time of soil body generation frost heave, wire rope 6 can be from the interior pull-out of stay wire displacement sensor 3.
Finally utilize set bolt 2 that top board 1 is fixed on casing 4.
After device installation, the signal wire 12 being connected is stretched out to earth's surface, and be connected with data collecting instrument with stay-supported type displacement sensor 3, realize in real time and measuring.
Claims (2)
1. the device for measuring frozen district stratum deformation, comprise top board (1), stay-supported type displacement sensor (3), casing (4), casing base plate (7) and sedimentation bar (9), it is characterized in that: top board (1) is connected by set bolt (2) with casing (4); Casing (4) is connected by screw with casing base plate (7); Casing base plate (7) upper welding waterproof inner core (8); In casing (4), be provided with support (5); The upper fixed displacement sensor (3) of support (5); One end of sedimentation bar (9) connects sedimentation bar base plate (11), and the other end is through waterproof inner core (8), by wire rope (6) connecting stay wire formula displacement transducer (3); Stay-supported type displacement sensor (3) is adopted instrument by signal wire (12) linking number.
2. a kind of device for measuring frozen district stratum deformation as claimed in claim 1, is characterized in that: the outer sleeve pipe (10) that is provided with of described sedimentation bar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014693.XA CN103776417A (en) | 2014-01-14 | 2014-01-14 | Device for measuring cryolithozone stratum deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014693.XA CN103776417A (en) | 2014-01-14 | 2014-01-14 | Device for measuring cryolithozone stratum deformation |
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| CN103776417A true CN103776417A (en) | 2014-05-07 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535044A (en) * | 2014-11-25 | 2015-04-22 | 长江勘测规划设计研究有限责任公司 | Displacement type soil layering settlement deformation monitoring system |
| CN105136112A (en) * | 2015-09-22 | 2015-12-09 | 河南科技大学 | Portable device for measuring settlement in soil |
| CN106197363A (en) * | 2016-07-15 | 2016-12-07 | 重庆大学 | A kind of measuring method of protected seam dilatancy amount |
| CN107036580A (en) * | 2017-04-15 | 2017-08-11 | 中铁二院工程集团有限责任公司 | A kind of simple subgrade settlement automated watch-keeping facility and monitoring method |
| CN107462211A (en) * | 2017-09-13 | 2017-12-12 | 大连理工大学 | A kind of road foundation settlement monitoring sensor for being suitable for having half/rigid structural layer |
| CN109781773A (en) * | 2019-03-28 | 2019-05-21 | 凌贤长 | A kind of frost heave device and its detection method being layered telescopic detection soil |
| CN110409403A (en) * | 2018-04-28 | 2019-11-05 | 中国科学院寒区旱区环境与工程研究所 | A kind of ever-frozen ground subsidence monitoring device |
| CN110567428A (en) * | 2019-09-12 | 2019-12-13 | 东北电力大学 | Frozen expansive soil body displacement detection device and installation method thereof |
| CN110686659A (en) * | 2019-11-22 | 2020-01-14 | 夏玉军 | Surface subsidence monitoring device for subway tunnel construction |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535044A (en) * | 2014-11-25 | 2015-04-22 | 长江勘测规划设计研究有限责任公司 | Displacement type soil layering settlement deformation monitoring system |
| CN105136112A (en) * | 2015-09-22 | 2015-12-09 | 河南科技大学 | Portable device for measuring settlement in soil |
| CN106197363A (en) * | 2016-07-15 | 2016-12-07 | 重庆大学 | A kind of measuring method of protected seam dilatancy amount |
| CN106197363B (en) * | 2016-07-15 | 2018-07-24 | 重庆大学 | A kind of measurement method of protected seam dilatancy amount |
| CN107036580A (en) * | 2017-04-15 | 2017-08-11 | 中铁二院工程集团有限责任公司 | A kind of simple subgrade settlement automated watch-keeping facility and monitoring method |
| CN107462211B (en) * | 2017-09-13 | 2023-05-05 | 大连理工大学 | Road subgrade settlement monitoring sensor suitable for semi/rigid structural layer |
| CN107462211A (en) * | 2017-09-13 | 2017-12-12 | 大连理工大学 | A kind of road foundation settlement monitoring sensor for being suitable for having half/rigid structural layer |
| CN110409403A (en) * | 2018-04-28 | 2019-11-05 | 中国科学院寒区旱区环境与工程研究所 | A kind of ever-frozen ground subsidence monitoring device |
| CN109781773A (en) * | 2019-03-28 | 2019-05-21 | 凌贤长 | A kind of frost heave device and its detection method being layered telescopic detection soil |
| CN109781773B (en) * | 2019-03-28 | 2021-07-09 | 凌贤长 | Detection method for realizing layered telescopic type frost heaving detection device |
| CN110567428A (en) * | 2019-09-12 | 2019-12-13 | 东北电力大学 | Frozen expansive soil body displacement detection device and installation method thereof |
| CN110686659A (en) * | 2019-11-22 | 2020-01-14 | 夏玉军 | Surface subsidence monitoring device for subway tunnel construction |
| CN110686659B (en) * | 2019-11-22 | 2021-09-21 | 中铁十八局集团有限公司 | Surface subsidence monitoring device for subway tunnel construction |
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Application publication date: 20140507 |