CN203745110U - Rock soil pressure sensor burying device - Google Patents
Rock soil pressure sensor burying device Download PDFInfo
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- CN203745110U CN203745110U CN201420081812.9U CN201420081812U CN203745110U CN 203745110 U CN203745110 U CN 203745110U CN 201420081812 U CN201420081812 U CN 201420081812U CN 203745110 U CN203745110 U CN 203745110U
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- wall container
- pressure transducer
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Abstract
The utility model discloses a rock soil pressure sensor burying device. A top seat is positioned on the top of a cylindrical thin-wall container, in which a protective layer material is arranged. An inner liner is arranged between the cylindrical thin-wall container and the protective layer material. An outer liner is disposed on the outside of the cylindrical thin-wall container. The cylindrical thin-wall container is composed of a bottom plate and a side wall. The side wall is provided with a notch. A pressure sensor is positioned in the protective layer material. The pressure sensor is connected with a sensor cable. The sensor cable passes through the inner liner, the notch in the cylindrical thin-wall container and the outer liner and extends to the outside. An upper sealing strip and a lower sealing strip are respectively arranged at upper and lower ends of the sensor cable at the notch. According to the utility model, a digging pit slot is small, and the size of a protective layer for a sensor is small. Burying efficiency can be raised; measurement accuracy is raised; the protective layer can be prevented from being vibrated scattered during vibro-rolling; and the problem of burying a sensor in coarse aggregates is solved.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, particularly a kind of rock-soil pressure transducer embedded device.
Background technology
In present Geotechnical Engineering, Hydraulic and Hydro-Power Engineering and marine traffic engineering are built, use more and more rock-soil pressure transducer and measure the pressure in coarse particle material medium, for example: in Hydraulic and Hydro-Power Engineering, build the soil pressure of the process need monitoring dam body key position of rock-fill dams; In road engineering, need to monitor subgrade reaction, in marine traffic engineering, also often need to bury earth pressure gauge underground with monitoring of structures safety case; In addition, in the scientific research for coarse particle material, often also need the data of original position ground stress, because its particle is larger, conventional laboratory experiment method cannot be obtained, and the mode that can only bury earth pressure gauge underground by scene obtains, and the measurement mechanism that existing scene is buried underground is mainly used for the pressure survey in fine grained soil, such as clay, silt etc., and to pressing force measurement in coarse grained ground, existing technology still has many deficiencies.
The measuring accuracy of soil pressure sensor is affected by several factors, quite complicated, and for example shape of sensor self, rigidity are buried the rigidity, grain composition, compactness of medium etc. underground.On the whole, the factor that affects sensor measurement precision is sensor self-characteristic and buries condition underground.Wherein, bury the impact that condition is subject to sensor method for embedding to a great extent underground.
For ground sensor in embankment, bury underground, general step is as follows:
1, excavation (non-hole is buried this step of method underground and omitted).In predetermined burying underground, dig pit groove to the predetermined elevation of burying underground.Hole groove area is about 1.2m * 1.2m, different according to embankment material, and groove depth is generally in 1.2m left and right.
2, planarizing sensor is buried bedding face underground, makes it closely knit, even, smooth.General bedding face needs bedding material preparation.
3, lay as requested sensor.
4, protection sensor.The general graded sand that adopts is prepared protective seam above its sense film, and the sensor in Coarse Aggregate can suitably relax the requirement of protective seam particle size.Protective seam is answered layered rolling preparation, guarantees closely knit
5, the former medium of backfill.Thin layer stone, special compacting, makes the sensor grating of material around, water cut, density with close on cubic metre of earth approaching.
From above-mentioned steps, can find out, tradition is buried sensor, method underground and is applied to, in coarse particle material, have following shortcoming:
1, need to dig the hole groove of diameter 1.2m left and right, need a large amount of bedding material and former medium soil backfill, backfill quality cannot be effectively controlled, and former medium is produced to disturbance, has changed the physico-mechanical properties of the former medium soil body.
2, above sensor, protective seam is oversize, and protective seam is of low quality, changes sensor stressing conditions around, makes measured data can not represent former medium self property;
3, bury inefficiency problem underground, excavated volume is large, configuration is installed and need to spends a large amount of manpower and materials;
4, sensor measurement validity can not be guaranteed.While burying soil pressure cell measurement underground in coarse-grained soil building stones, may be larger due to its particle, cause the local stress that produces of sensor sensing face to concentrate, impact measurement levels of precision; May be because medium water permeability is better, sensor lost efficacy after contacting with large water gaging; And, because protective layer material particle is thinner, may roll in process and shake and spill in the former medium soil body in vibrations, reduced the validity of measurement data.
Utility model content
The purpose of this utility model is to provide a kind of excavation hole groove little; the required protective seam size of sensor is little; can improve the efficiency of burying underground; improved measuring accuracy; and it is middle by the loose rock-soil pressure transducer embedded device of shake, to solve the problem of burying underground in sensor in Coarse Aggregate to prevent that protective seam from rolling in vibrations.
The technical solution that realizes the utility model object is:
A kind of rock-soil pressure transducer embedded device, comprise cylinder-shaped thin wall container, footstock, upper sealing strip, lower seal bar, liner, outer lining, band and pressure transducer, footstock is positioned at cylinder-shaped thin wall container top, in cylinder-shaped thin wall container, be provided with protective layer material, liner is arranged between cylinder-shaped thin wall container and protective layer material, and outer lining is arranged on cylinder-shaped thin wall outside of containers; Described cylinder-shaped thin wall container is comprised of base plate and sidewall, sidewall is provided with notch, pressure transducer is between protective layer material, and pressure transducer is connected with sensor wire, and described sensor wire extends to outside through liner, cylinder-shaped thin wall container side wall notch and outer lining; Upper sealing strip and lower seal bar are separately positioned on the upper and lower two ends of sensor wire, notch place.
The utility model compared with prior art, its remarkable advantage:
(1) the utility model can carry out the configuration of rock-soil pressure transducer protective seam in laboratory environment; make protective seam parameter and layoutprocedure controlled; improve protective seam quality; improve near the stress condition of cell pressure film; improve sensor measurement precision, and then reduced and require required sensor protection layer size for meeting measuring accuracy.
(2) the utility model configuration is convenient, method for embedding is succinct, makes to bury underground the needed former medium excavated volume of sensor and greatly reduces, and can improve and bury efficiency underground, thus cost-saving;
(3) the utility model makes to bury underground process bed course size and excavated volume is all reduced, and the disturbance of former soil medium is also less, makes measured soil pressure more representative.
(4) the utility model efficiently solves the sensor protection layer material buried underground in the coarse particle soil body and may roll the problem such as loose, permeable of shaking in process in vibrations.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the utility model rock-soil pressure transducer embedded device.
Embodiment
In conjunction with Fig. 1:
A kind of rock-soil pressure transducer embedded device of the utility model, comprise cylinder-shaped thin wall container 1, footstock 2, upper sealing strip 3, lower seal bar 4, liner 5, outer lining 6, band 7 and pressure transducer 8, footstock 2 is positioned at cylinder-shaped thin wall container 1 top, in cylinder-shaped thin wall container, 1 is provided with protective layer material, liner 5 is arranged between cylinder-shaped thin wall container 1 and protective layer material, and outer lining 6 is arranged on cylinder-shaped thin wall container 1 outside; Described cylinder-shaped thin wall container 1 is comprised of base plate and sidewall, sidewall is provided with notch, pressure transducer 8 is between protective layer material, pressure transducer 8 is connected with sensor wire 9, and described sensor wire 9 extends to outside through liner 5, cylinder-shaped thin wall container 1 sidewall notch and outer lining 6; Upper sealing strip 3 and lower seal bar 4 are separately positioned on notch place sensor wire, and Shang Xia 9 two ends.
Protective layer material adopts fine particle materials, and maximum particle diameter is less than the maximum particle diameter of soil layer that sensor is imbedded, and is less than 1/30 of sensor 8 bearing plate diameters.
Pressure transducer 8 is in the horizontal direction between upper sealing strip 3 and lower seal bar 4.
Cylinder-shaped thin wall container 1, footstock 2 and band 7 are stainless steel.
Upper sealing strip 3 and lower seal bar 4 adopt polyfoam.
Liner 5 and outer lining 6 adopt geosynthetics to make, and between liner 5 and cylinder-shaped thin wall container 1 and between outer lining 6 and cylinder-shaped thin wall container 1, all scribble lubricant.
Pressure transducer 8 is soil pressure sensor.
Between sensor wire 9 and liner 5, do water-proofing treatment.
Embodiment:
A kind of rock-soil pressure transducer embedded device, comprise cylinder-shaped thin wall container 1, footstock 2, upper sealing strip 3, lower seal bar 4, liner 5, outer lining 6, band 7 and pressure transducer 8, footstock 2 is positioned at cylinder-shaped thin wall container 1 top, in cylinder-shaped thin wall container, 1 is provided with protective layer material, liner 5 is arranged between cylinder-shaped thin wall container 1 and protective layer material, and outer lining 6 is arranged on cylinder-shaped thin wall container 1 outside; Described cylinder-shaped thin wall container 1 is comprised of base plate and sidewall, sidewall is provided with notch, pressure transducer 8 is between protective layer material, pressure transducer 8 is connected with sensor wire 9, and described sensor wire 9 extends to outside through liner 5, cylinder-shaped thin wall container 1 sidewall notch and outer lining 6; Upper sealing strip 3 and lower seal bar 4 are separately positioned on notch place sensor wire, and Shang Xia 9 two ends.
Protective layer material adopts fine particle materials, and maximum particle diameter is at 5cm, and soil pressure sensor 8 diameters are 22cm.
Pressure transducer 8 is in the horizontal direction between upper sealing strip 3 and lower seal bar 4.
Cylinder-shaped thin wall container 1, footstock 2 and band 7 are stainless steel.
Upper sealing strip 3 and lower seal bar 4 adopt polyfoam.
Liner 5 and outer lining 6 adopt geosynthetics to make, and between liner 5 and cylinder-shaped thin wall container 1 and between outer lining 6 and cylinder-shaped thin wall container 1, all scribble lubricant.
Pressure transducer 8 is soil pressure sensor.
Between sensor wire 9 and liner 5, do water-proofing treatment.
Concrete layoutprocedure is as follows:
When prefabricated, configuration soil pressure sensor embedded device, is coated with one deck lubricant in cylinder-shaped thin wall container 1 interior, puts into the liner 5 of geosynthetics, forms pocket-like; In cylinder-shaped thin wall container 1 sidewall notch lower end, lower seal bar 4 is installed, protective layer material is poured in cylinder-shaped thin wall container 1, be filled to the position concordant with the upper end of lower seal bar 4, be densified to maximum dry density, smooth; By the pressure-bearing surface of sensor 8 down, be steadily placed on protective layer material, sensor wire 9 is drawn from untight notch; Liner 6 is drawn a part from notch, wraps up a part of sensor wire 9, and fixing with cable band and sensor wire 9; Upper sealing strip 3 is snapped in notch to space, shutoff notch top; Protective layer material is poured in cylinder-shaped thin wall container 1, be filled to cylinder-shaped thin wall container 1 top, in band 7 lockings for the outer upper part of cylinder-shaped thin wall container 1, be densified to maximum dry density, smooth, one deck lubricant is smeared in the sealing liner 5 whole outsides of cylinder-shaped thin wall container 1, be inverted cylinder-shaped thin wall container 1, its integral body is put on preprepared outer lining 6, with outer lining 6 parcel cylinder-shaped thin wall containers 1, and seals with outer lining band; Footstock 2 is installed, with cotton rope by it together with 1 colligation of cylinder-shaped thin wall container, become as a whole.
It is concrete that to bury process underground as follows:
1, dig and bury hole underground, diameter is 80cm, but wherein the diameter of cylinder-shaped thin wall container 1 is that this step omission of method is buried in the non-hole of 30cm(, but need establish installation of sensors platform with fixation of sensor).
2, planarizing sensor basal plane, laying standard sand bedding course.
3, prefabricated soil pressure sensor embedded device is inverted to (base upward, sensor pressure-bearing surface upward) and is placed on basal plane, extract footstock 2, and then stainless steel band 7 is removed;
4, the former soil body material of backfill, to cylinder-shaped thin wall container 1 base plate, is densified to packing identical with the former soil body;
5, cylinder-shaped thin wall container 1 is extracted and the outside soil body of being isolated by outer lining 6, the sand protective seam being wrapped up by liner 5 is separated, wherein goes up sealing strip 3, lower seal bar 4, will be left in burying medium underground, but can not impact embedding precision.
6, continue backfill starting material, layering carefully rolls, and it is identical with the former soil body to control packing, until material fills up the whole hole of burying underground.
Claims (8)
1. a rock-soil pressure transducer embedded device, is characterized in that, comprises cylinder-shaped thin wall container (1), footstock (2), upper sealing strip (3), lower seal bar (4), liner (5), outer lining (6), band (7) and pressure transducer (8); Footstock (2) is positioned at cylinder-shaped thin wall container (1) top, in cylinder-shaped thin wall container, (1) is provided with protective layer material, liner (5) is arranged between cylinder-shaped thin wall container (1) and protective layer material, and outer lining (6) is arranged on cylinder-shaped thin wall container (1) outside; Described cylinder-shaped thin wall container (1) is comprised of base plate and sidewall, sidewall is provided with notch, pressure transducer (8) is between protective layer material, pressure transducer (8) is connected with sensor wire (9), and described sensor wire (9) extends to outside through liner (5), cylinder-shaped thin wall container (1) sidewall notch and outer lining (6); Upper sealing strip (3) and lower seal bar (4) are separately positioned on the upper and lower two ends of notch place sensor wire (9).
2. a kind of rock-soil pressure transducer embedded device according to claim 1; it is characterized in that: described protective layer material adopts fine particle materials; maximum particle diameter is less than the maximum particle diameter of soil layer that sensor is imbedded, and is less than 1/30 of sensor (8) bearing plate diameter.
3. a kind of rock-soil pressure transducer embedded device according to claim 1, is characterized in that: described pressure transducer (8) is positioned between sealing strip (3) and lower seal bar (4) in the horizontal direction.
4. a kind of rock-soil pressure transducer embedded device according to claim 1, is characterized in that: described cylinder-shaped thin wall container (1), footstock (2) and band (7) are stainless steel.
5. a kind of rock-soil pressure transducer embedded device according to claim 1, is characterized in that: described upper sealing strip (3) and lower seal bar (4) adopt polyfoam.
6. a kind of rock-soil pressure transducer embedded device according to claim 1, it is characterized in that: described liner (5) and outer lining (6) adopt geosynthetics to make, and between liner (5) and cylinder-shaped thin wall container (1) and between outer lining (6) and cylinder-shaped thin wall container (1), all scribble lubricant.
7. a kind of rock-soil pressure transducer embedded device according to claim 1, is characterized in that: described pressure transducer (8) is soil pressure sensor.
8. a kind of rock-soil pressure transducer embedded device according to claim 1, is characterized in that: between described sensor wire (9) and liner (5), do water-proofing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420081812.9U CN203745110U (en) | 2014-02-25 | 2014-02-25 | Rock soil pressure sensor burying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420081812.9U CN203745110U (en) | 2014-02-25 | 2014-02-25 | Rock soil pressure sensor burying device |
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| Publication Number | Publication Date |
|---|---|
| CN203745110U true CN203745110U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420081812.9U Expired - Fee Related CN203745110U (en) | 2014-02-25 | 2014-02-25 | Rock soil pressure sensor burying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808435A (en) * | 2014-02-25 | 2014-05-21 | 江苏省交通科学研究院股份有限公司 | Rock-soil pressure sensor embedding device and embedding method thereof |
| CN110007362A (en) * | 2019-04-22 | 2019-07-12 | 哈尔滨工业大学 | The method that ice and snow detection sensor protects sleeve and carries out line layout using it |
| CN111622198A (en) * | 2020-05-07 | 2020-09-04 | 三峡大学 | Sensor embedding device and embedding method thereof |
-
2014
- 2014-02-25 CN CN201420081812.9U patent/CN203745110U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808435A (en) * | 2014-02-25 | 2014-05-21 | 江苏省交通科学研究院股份有限公司 | Rock-soil pressure sensor embedding device and embedding method thereof |
| CN103808435B (en) * | 2014-02-25 | 2015-11-18 | 苏交科集团股份有限公司 | Rock-soil pressure transducer embedded device and method for embedding thereof |
| CN110007362A (en) * | 2019-04-22 | 2019-07-12 | 哈尔滨工业大学 | The method that ice and snow detection sensor protects sleeve and carries out line layout using it |
| CN111622198A (en) * | 2020-05-07 | 2020-09-04 | 三峡大学 | Sensor embedding device and embedding method thereof |
| CN111622198B (en) * | 2020-05-07 | 2021-08-10 | 三峡大学 | Sensor embedding device and embedding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181010 Address after: 730000 the 19 floor of the innovation building, 18 Yan Nan Road, Chengguan District, Lanzhou, Gansu. Patentee after: Su Jiao Ke group (Gansu) transportation planning and Design Co., Ltd. Address before: 210017 No. 223, Shui Xi Men street, Jianye District, Nanjing, Jiangsu. Patentee before: Jiangsu Transportation Research Institute Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20210225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |