CN103868638B - Frost force measurement device and measuring method thereof - Google Patents
Frost force measurement device and measuring method thereof Download PDFInfo
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- CN103868638B CN103868638B CN201410119083.6A CN201410119083A CN103868638B CN 103868638 B CN103868638 B CN 103868638B CN 201410119083 A CN201410119083 A CN 201410119083A CN 103868638 B CN103868638 B CN 103868638B
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Abstract
Frost force measurement device and measuring method thereof; be made up of base, coupling spindle, attachment bolt, the axis of guide, transmission lever, transmission lever protection tube, transducer probe assembly, UNICOM's plate, displacement plate, limited cover; it is characterized in that; swelling soil generation frost heave and thawing effect drive the displacement plate generation synchronous shift change of frost force measurement device when being subjected to displacement change; and then drive transmission lever to be subjected to displacement change; make the transducer probe assembly of frost force measurement device that stressed effect occur, the size of power when swelling soil generation frost heave and thawing effect can be measured.Increase coupling spindle, the axis of guide and an attachment bolt between base of the present invention and transmission lever, attachment bolt connects coupling spindle and the axis of guide, employing be articulated manner, structure is simple, and Embedment and installation is convenient, and measuring method is quick.The present invention processes simply, also easily realizes.
Description
Technical field
The invention belongs to cold district Geotechnical Engineering monitoring technical field; Be specifically related to a kind of frost force measurement device.The invention still further relates to the measuring method of this frost force measurement device.
Background technology
At cold district, the frost heave of frost zone causes the main cause of engineering freeze injury.Canal structure, as canal lining body, pumping station forebay etc., is all subject to soil freezed expansion effect in various degree and is damaged.The road of making high class pavement or sand-gravel surface and attached structure thereof, tunnel, retaining wall, walkway and domatic etc., due to the frost heave action produced in soil or rock, these structures are usually made to suffer larger destruction, cause road damaged, have impact on the current of vehicle, also reduce the serviceable life of road simultaneously.
For avoiding frost heaving failure, hydraulic structure General Requirements embedded depth of foundation is below frost line, thus foundation works amount accounts for more than 1/3 of whole quantities, but for hydraulic structures such as various lots of canal lining body or river course slope protections, strengthen embedded depth of foundation for preventing frost heave and economically consider it is almost impossible.For this reason, for reducing quantities and investment, needing the correct frost heave estimating soil, being convenient to the frozen prevention measures taking corresponding economical rationality.
Because frozen soil can cause soil expansion, cause the increase of soil body volume can cause inside soil body pressure increase, otherwise frozen soil thawing can cause inside soil body pressure to reduce.
China's No. 201120315253 utility model patents, disclose a kind of Frost heave of frozen soil thaw collapse measurement mechanism, described measurement mechanism comprises: fibre pipe, inductor, data converter, processing unit; Be provided with salt solution in described fibre pipe, inductor is connected with cursory by cursory line, and a cursory part enters in salt solution; Described data converter is connected with inductor, processing unit respectively, the induced signal of inductor is converted to digital signal and sends to processing unit processes.
The Frost heave of frozen soil thaw collapse measurement mechanism of prior art, disturbs the virgin state of frozen soil when measuring, cannot prototype measure swelling soil generation frost heave and melt acting force very well.Meanwhile, the frost-heave force of frozen soil often can damage the cable of instrument, causes and measures unsuccessfully.
Summary of the invention
The technical matters that will solve required for the present invention is, overcomes existing technological deficiency, provides a kind of frost force measurement device, and this frost force measurement device prototype can be measured swelling soil and endure cold and stressed size after melting, and the change of displacement.The present invention also provides the measuring method of this frost force measurement device.The present invention prototype can measure swelling soil generation frost heave and melts acting force; The frost-heave force of frozen soil can be avoided to damage the cable of instrument simultaneously.
The technical scheme completing foregoing invention task is, a kind of frost force measurement device, this frost force measurement device is embedded in frozen soil to be measured, it is characterized in that, the base of this frost force measurement device is cast in concrete pier, this base, by transmission lever and sensor connector, connects with the side of transducer probe assembly; The opposite side of described transducer probe assembly, by UNICOM's plate, sensor connector and transmission lever, connects with limited cover and displacement plate.
Structure of the present invention has following prioritization scheme:
1, between base and transmission lever increase coupling spindle, the axis of guide and an attachment bolt: on base, be fixed with coupling spindle, this coupling spindle connects the axis of guide by attachment bolt, employing be articulated manner, the axis of guide can rotate by Impact direction.
2, transmission lever protection tube is provided with in transmission lever outside.
3, connected by one block of UNICOM's plate and sensor connector between transmission lever and sensor, displacement plate and transmission lever is driven to produce the effect of power when swelling soil generation frost heave and thawing acting force, transmission lever passes to sensor by UNICOM's plate power, so just can measure the frost-heave force that swelling soil produces.
4, sensor of the present invention adopts columniform force snesor.
5, cable aperture is provided with in the middle of UNICOM's plate; Sensor cable is middle from the cable aperture in the middle of UNICOM's plate to transmission lever to be worn out, and instrument cable can well be protected not damaged.
Swelling soil generation frost heave and thawing effect drive the displacement plate generation synchronous shift change of frost force measurement device when being subjected to displacement change, and then drive transmission lever to be subjected to displacement change, make the transducer probe assembly of frost force measurement device that stressed effect occur, the size of power when swelling soil generation frost heave and thawing effect can be measured.This measurement mechanism is fixed to transmission lever by base, coupling shaft, the axis of guide and an attachment bolt.Attachment bolt connects coupling spindle and the axis of guide, what adopt is articulated manner, the axis of guide can rotate by Impact direction, and connected by one block of UNICOM's plate and sensor connector between transmission lever and sensor, displacement plate and transmission lever is driven to produce the effect of power when swelling soil generation frost heave and thawing acting force, transmission lever passes to sensor by UNICOM's plate power, so just can measure the frost-heave force that swelling soil produces.
The technical scheme completing the application's second goal of the invention is, the measuring method of above-mentioned frost force measurement device, comprises the following steps:
(1). dig a hole needing the position of carrying out swelling soil generation frost heave and melting Force measurement;
(2). inside the hole dug, build a concrete pier, and bury the base of frost force measurement device in advance underground when casting concrete pier;
(3). after waiting concreting initial set, coupling spindle, attachment bolt, the axis of guide, transmission lever, transmission lever protection tube, transducer probe assembly, UNICOM's plate, displacement plate, the limited cover of frost force measurement device is installed successively;
(4). it is consistent that the adjustment axis of guide and attachment bolt make transmission lever and swelling soil produce frost heave action power direction of measurement;
(5). backfill swelling soil, inside the swelling soil that compacting makes the displacement plate of frost force measurement device be embedded in will to measure.
Repeatedly say, installation method to set up of the present invention is: dig a hole by needing the position of carrying out swelling soil generation frost force measurement, a concrete pier is built in the hole dug, and the base of frost force measurement device is embedded in inside concrete pier, complete Deng concreting, after initial set, successively coupling spindle is installed, attachment bolt, the axis of guide, transmission lever, transmission lever protection tube, transducer probe assembly, UNICOM's plate, displacement plate, limited cover, and adjusting the axis of guide and attachment bolt on request, to make transmission lever and swelling soil produce frost heave action power direction of measurement consistent, after Embedded installation completes, hole is filled up, compacting makes frost force measurement device displacement plate inside the swelling soil that will measure.
Processing of the present invention is simple, easily realizes.The present invention is mainly: prototype cannot measure the present situation that swelling soil produces frost heave and thawing acting force very well before changing, invent the effective measurement mechanism of a kind of frost-heave force and measuring method thereof, and the structure of this measurement mechanism is simple, Embedment and installation is convenient, and measuring method is convenient.The present invention processes simply, also easily realizes.
Accompanying drawing explanation
Fig. 1 is the structural representation of frost force measurement device of the present invention;
Fig. 2 is axis of guide structural representation of the present invention;
Tu3Shi UNICOM of the present invention plate structure schematic diagram.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing and concrete case study on implementation, the inventive method is described in further detail.Concrete case study on implementation described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1; frost force measurement device and measuring method thereof; with reference to Fig. 1; a hole is dug by needing the position of carrying out the measurement of swelling soil generation frost heave action power; a concrete pier is built in the hole dug; and the base 1 of frost force measurement device is embedded in inside concrete pier, after waiting concreting to complete initial set, successively coupling spindle 9, attachment bolt 2, the axis of guide 10, transmission lever 4, transmission lever protection tube 3, transducer probe assembly 6, UNICOM's plate 7, displacement plate 8, limited cover 11 are installed.By fixed bolt hole 12 compact siro spinning technology of UNICOM's plate 7 between transducer probe assembly 6 and UNICOM's plate 7; And adjusting the axis of guide 10 and attachment bolt 2 on request, to make transmission lever 4 and swelling soil produce frost heave action power direction of measurement consistent, after Embedded installation completes, hole is filled up, compacting makes frost force measurement device displacement plate 8 inside the swelling soil that will measure.
With reference to Fig. 2, Fig. 3, coupling spindle 9, the axis of guide 10 and an attachment bolt 2 is increased between base 1 of the present invention and transmission lever 4, attachment bolt 2 connects coupling spindle 9 and the axis of guide 10, what adopt is articulated manner, the axis of guide 10 can rotate by Impact direction, and connected by one block of UNICOM's plate 7 and sensor connector 5 between transmission lever 4 and sensor 6, displacement plate 8 and transmission lever 4 is driven to produce the effect of power when swelling soil generation frost heave and thawing acting force, transmission lever 4 passes to sensor 6 by UNICOM's plate 7 power, so just can measure the frost-heave force that swelling soil produces.The present invention's sensor 6 used adopts columniform force snesor 6, wears out, instrument cable can well be protected not damaged in the middle of the sensor 6 cable cable aperture 13 in the middle of UNICOM's plate 7 to transmission lever 4.
Frost force measurement device processing of the present invention is simple, and Embedment and installation is convenient, and measuring method is convenient.
Claims (6)
1. a frost force measurement device, this frost force measurement device is embedded in frozen soil to be measured, it is characterized in that, the base of this frost force measurement device is cast in concrete pier, and this base, by transmission lever and sensor connector, connects with the side of transducer probe assembly; The opposite side of described transducer probe assembly, by UNICOM's plate, sensor connector and transmission lever, connects with limited cover and displacement plate.
2. frost force measurement device according to claim 1, it is characterized in that, coupling spindle, the axis of guide and attachment bolt is provided with between base and transmission lever, its structure is: on base, be fixed with coupling spindle, this coupling spindle connects the axis of guide by attachment bolt, what adopt is articulated manner, and the axis of guide can rotate by Impact direction.
3. frost force measurement device according to claim 1, is characterized in that, is provided with transmission lever protection tube in transmission lever outside.
4. frost force measurement device according to claim 1, is characterized in that, described sensor adopts columniform force snesor.
5. according to the frost force measurement device one of claim 1-4 Suo Shu, it is characterized in that, in the middle of UNICOM's plate, be provided with cable aperture; Sensor cable is middle from the cable aperture in the middle of UNICOM's plate to transmission lever to be worn out.
6. the measuring method of a frost force measurement device, adopt frost force measurement device, this frost force measurement device is embedded in frozen soil to be measured, and the base of this frost force measurement device is cast in concrete pier, this base, by transmission lever and sensor connector, connects with the side of transducer probe assembly; The opposite side of described transducer probe assembly, by UNICOM's plate, sensor connector and transmission lever, connects with limited cover and displacement plate, it is characterized in that, comprise the following steps:
(1). dig a hole needing the position of carrying out swelling soil generation frost heave and melting Force measurement;
(2). inside the hole dug, build a concrete pier, and bury the base of frost force measurement device in advance underground when casting concrete pier;
(3). after waiting concreting initial set, coupling spindle, attachment bolt, the axis of guide, transmission lever, transmission lever protection tube, transducer probe assembly, UNICOM's plate, displacement plate, the limited cover of frost force measurement device is installed successively;
(4). it is consistent that the adjustment axis of guide and attachment bolt make transmission lever and swelling soil produce frost heave action power direction of measurement;
(5). backfill swelling soil, inside the swelling soil that compacting makes the displacement plate of frost force measurement device be embedded in will to measure;
Wherein, be provided with coupling spindle, the axis of guide and attachment bolt between base and transmission lever, its structure is: on base, be fixed with coupling spindle, and this coupling spindle connects the axis of guide by attachment bolt, employing be articulated manner, the axis of guide can rotate by Impact direction; Transmission lever protection tube is provided with in transmission lever outside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410119083.6A CN103868638B (en) | 2014-03-27 | 2014-03-27 | Frost force measurement device and measuring method thereof |
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| CN201410119083.6A CN103868638B (en) | 2014-03-27 | 2014-03-27 | Frost force measurement device and measuring method thereof |
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| CN103868638A CN103868638A (en) | 2014-06-18 |
| CN103868638B true CN103868638B (en) | 2016-01-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283215B (en) * | 2018-11-26 | 2020-02-07 | 中国地质大学（北京） | Method for measuring and calculating frost heaving force of tunnel surrounding rock in cold region after repeated freeze-thaw damage |
| CN109931861B (en) * | 2019-03-04 | 2024-01-30 | 中建东设岩土工程有限公司 | Soil frost heaving force testing method and device |
| CN109868803B (en) * | 2019-03-28 | 2020-11-24 | 哈尔滨工业大学 | Frost heaving stress detection device and detection method thereof |
| CN111562283B (en) * | 2020-06-11 | 2022-03-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Instrument for automatically measuring frost heaving deformation of full section of channel and measuring and mounting method |
| CN113898412B (en) * | 2021-10-13 | 2023-11-10 | 中铁十九局集团有限公司 | Freeze-swelling force monitoring method based on subway horizontal freezing |
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| JPS6010017A (en) * | 1983-06-29 | 1985-01-19 | Nippon Kokan Kk <Nkk> | Freezing damage preventive pile |
| JPH10325156A (en) * | 1995-09-22 | 1998-12-08 | Konoike Constr Ltd | Structure for preventing underground structure from suffering damage caused by frost having, and its work execution method |
| CN2549449Y (en) * | 2002-06-18 | 2003-05-07 | 大庆石油管理局 | Device for measuring strains of casing and formation by expansion of oil well cement ring |
| CN1441233A (en) * | 2003-04-08 | 2003-09-10 | 武汉理工大学 | Swelling pressure testing method and device for static rupturing agent |
| CN101586993A (en) * | 2009-06-25 | 2009-11-25 | 哈尔滨工业大学 | Concrete early stage frost heave stress test device and test method |
| CN201359541Y (en) * | 2009-03-06 | 2009-12-09 | 长江水利委员会长江科学院 | Full-automation rock expansion force tester |
| CN102809641A (en) * | 2012-07-11 | 2012-12-05 | 西安理工大学 | Undisturbed soil sample expansion force testing device capable of controlling saturation |
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2014
- 2014-03-27 CN CN201410119083.6A patent/CN103868638B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010017A (en) * | 1983-06-29 | 1985-01-19 | Nippon Kokan Kk <Nkk> | Freezing damage preventive pile |
| JPH10325156A (en) * | 1995-09-22 | 1998-12-08 | Konoike Constr Ltd | Structure for preventing underground structure from suffering damage caused by frost having, and its work execution method |
| CN2549449Y (en) * | 2002-06-18 | 2003-05-07 | 大庆石油管理局 | Device for measuring strains of casing and formation by expansion of oil well cement ring |
| CN1441233A (en) * | 2003-04-08 | 2003-09-10 | 武汉理工大学 | Swelling pressure testing method and device for static rupturing agent |
| CN201359541Y (en) * | 2009-03-06 | 2009-12-09 | 长江水利委员会长江科学院 | Full-automation rock expansion force tester |
| CN101586993A (en) * | 2009-06-25 | 2009-11-25 | 哈尔滨工业大学 | Concrete early stage frost heave stress test device and test method |
| CN102809641A (en) * | 2012-07-11 | 2012-12-05 | 西安理工大学 | Undisturbed soil sample expansion force testing device capable of controlling saturation |
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