CN103499678A - Determinator for soil volume expansive force - Google Patents
Determinator for soil volume expansive force Download PDFInfo
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- CN103499678A CN103499678A CN201310311612.8A CN201310311612A CN103499678A CN 103499678 A CN103499678 A CN 103499678A CN 201310311612 A CN201310311612 A CN 201310311612A CN 103499678 A CN103499678 A CN 103499678A
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Abstract
The invention relates to a determinator for soil volume expansive force, which comprises a sample cover body, a base sealedly connected and matched with the sample cover body, a pore water pressure sensor communicated with the sample cover body through a water manifold, a sample container disposed on the base, and a water supplementing pipe for supplementing water to a sample; the sample container comprises a top cover, an upper water-permeable stone, a lower water-permeable stone, a pedestal and a rubber sleeve; an upper opening of the rubber sleeve is sealedly connected with the top cover; an lower opening of the rubber sleeve is sealedly connected with the pedestal; the upper water-permeable stone is disposed on the bottom surface of the top cover; the lower water-permeable stone is disposed on the top surface of the pedestal; a chamber for accommodating the sample is formed between the upper water-permeable stone and the lower water-permeable stone. According to the above structure, because of the stretchable elastic rubber sleeve wrapped outside the sample, the sample expands in three-dimensional space when absorbing water, and the water pressure in the sample cover body is changed; therefore, accurate soil volume expansive force can be calculated.
Description
Technical field
The present invention relates to a kind of earthwork test Instrument, particularly a kind of soil body volumetric expansion force detector.
Background technology
At present, the balance pressurization method is the method for the mensuration soil expansion power that is widely used, and the test apparatus of measuring bulging force is comprised of scale frame, dial gauge, pressue device, sample box etc.Its process of the test is that sample is packed in sample box, covers filter paper, permeable stone on soil sample, then puts down pressurization lead ring and pressure transmission piston, makes each close contact.Dial gauge is fixed on the scale frame, the sounding rod of dial gauge is contacted with the upper surface of pressure transmission piston, write down initial reading.Then once wet to sample, when the dial gauge pointer rotates, illustrate that the soil body starts to expand, add appropriate iron sand toward containing sand bucket immediately, make the dial gauge pointer get back to initial reading, calculate the bulging force of sample according to the iron sand weighing scale used.But, the bulging force that the bulging force of measuring due to the traditional experiment method is the sample vertical direction, under the condition be restricted at the sample radial deformation, the structural strain's that the distortion of sample vertical direction is considered as to volume of sample is not accurate enough.And tested cumbersome by the method for adding iron sand.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of soil body volumetric expansion force detector, and this analyzer can be measured the volumetric expansion power of sample in three dimensions, and does not need to utilize the vertical bulging force of sample to be replaced, thereby draws bulging force accurately.For solving the problems of the technologies described above, the present invention adopts following technical proposals:
A kind of soil body volumetric expansion force detector, comprise the sample cover body, with the sample cover body be complementary the pedestal, the pore water pressure sensor be communicated with described sample cover body by aqueduct that are tightly connected, be arranged on sample receiver on described pedestal and to the filling pipe of moisturizing in sample; Described sample receiver comprises top cover, top permeable stone, bottom permeable stone, base and rubber case, suitable for reading and the top seal of described rubber case is connected, the end opening of described rubber case is connected with base seal, the bottom surface of described top cover is provided with the top permeable stone, the end face of described base is provided with the bottom permeable stone, is formed for holding the chamber of sample in the middle of described top permeable stone and described bottom permeable stone.
After adopting such structure, because the outside of sample is enclosed with telescopic India rubber cover, when the sample imbibition, this sample can expand in three dimensions, thereby cause the variation of water pressure in the sample cover body, and measure by pore water pressure sensor, draw as calculated the power of soil body volumetric expansion accurately.
Further, this analyzer also comprises the hydraulic controller of a connection on described aqueduct.After adopting such structure, can give in the sample cover body and apply certain confined pressure, thereby simulate the stressed situation of sample, draw the power of soil body volumetric expansion more accurately.
Further, the top of described sample cover body is provided with a vent valve.
Further, be provided with a closable feed pipe on described pedestal.After adopting such structure, can handled easily, make to be full of water in the sample cover body.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing explanation the specific embodiment of the present invention.
As shown in Figure 1 soil body volumetric expansion force detector comprise sample cover body 1, with sample cover body 1 be complementary the pedestal 2 that is connected, for the feed pipe 3 to 1 water filling of sample cover body, the hydraulic controller 4 be connected with sample cover body 1 by aqueduct, the pore water pressure sensor 5 be connected with sample cover body 1 by aqueduct, be arranged on sample receiver 6 in sample cover body 1 and to the filling pipe 7 of moisturizing in sample.
During on-test, place bottom permeable stone 63 on base 64, then sample is placed on above bottom permeable stone 63, place again top permeable stone 62 and top cover 61 on sample, then they are all put in India rubber cover 65, suitable for reading and the top cover 61 use bungees of rubber case 65 are tightened, make its sealing, the end opening of rubber case 65 and base 64 are also tightened with bungee, make its sealing, then the sample to be tested of handling well is placed on pedestal 2, hole on base 64 and pedestal 2 is aimed at, insert the lower surface of filling pipe 7 to bottom permeable stone 63, then be arranged on pedestal 2 by sample cover body 1 and be tightly connected, then by aqueduct, hydraulic controller 4 is connected with T-valve 8 respectively with pore water pressure sensor 5, and be communicated with sample cover body 1, then open the vent valve 11 arranged on sample cover body 1 end face, by feed pipe 3 to water filling in sample cover body 1, until after there are flowing out in vent valve 11, stop water filling and close vent valve, open hydraulic controller 4 and apply certain pressure in sample cover body 1, at this moment record the initial value on pore water pressure sensor 5, then open filling pipe 7 to moisturizing in sample, sample is by the abundant imbibition of bottom permeable stone 63, record at set intervals pore water pressure sensor 5 numerical value one time, until greatest measure occurs, off-test, deduct initial value with the greatest measure of pore water pressure sensor 5 and draw soil body volumetric expansion power.
The word in the description orientation that adopted herein " on ", D score, " left side ", " right side " etc. are all convenience in order to illustrate based on the orientation shown in drawing in accompanying drawing, in actual device, these orientation may be different due to the disposing way of device.
In sum, embodiment of the present invention only provides a kind of embodiment of the best, technology contents of the present invention and technical characterstic disclose as above, however the content that the personage who is familiar with the technology still may be based on disclosed and do various replacement and the modifications that do not deviate from creation spirit of the present invention; Therefore, protection scope of the present invention is not limited to the technology contents that embodiment discloses, therefore all equivalences of doing according to shape of the present invention, structure and principle change, all is encompassed in protection scope of the present invention.
Claims (4)
1. a soil body volumetric expansion force detector is characterized in that: comprise the sample cover body, with the sample cover body be complementary the pedestal, the pore water pressure sensor be communicated with described sample cover body by aqueduct that are tightly connected, be arranged on sample receiver on described pedestal and to the filling pipe of moisturizing in sample; Described sample receiver comprises top cover, top permeable stone, bottom permeable stone, base and rubber case, suitable for reading and the top seal of described rubber case is connected, the end opening of described rubber case is connected with base seal, the bottom surface of described top cover is provided with the top permeable stone, the end face of described base is provided with the bottom permeable stone, is formed for holding the chamber of sample in the middle of described top permeable stone and described bottom permeable stone.
2. soil body volumetric expansion force detector according to claim 1, it is characterized in that: this soil body volumetric expansion force detector also comprises the hydraulic controller of a connection on described aqueduct.
3. soil body volumetric expansion force detector according to claim 1, it is characterized in that: the top of described sample cover body is provided with a vent valve.
4. soil body volumetric expansion force detector according to claim 1, is characterized in that: be provided with a closable feed pipe on described pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311612.8A CN103499678B (en) | 2013-07-23 | 2013-07-23 | Determinator for soil volume expansive force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311612.8A CN103499678B (en) | 2013-07-23 | 2013-07-23 | Determinator for soil volume expansive force |
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| Publication Number | Publication Date |
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| CN103499678A true CN103499678A (en) | 2014-01-08 |
| CN103499678B CN103499678B (en) | 2015-06-03 |
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| CN201310311612.8A Expired - Fee Related CN103499678B (en) | 2013-07-23 | 2013-07-23 | Determinator for soil volume expansive force |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913557A (en) * | 2014-03-18 | 2014-07-09 | 山东科技大学 | Device for measuring the free swelling rate and the water content of rock and using method thereof |
| CN105116108A (en) * | 2015-08-10 | 2015-12-02 | 华北理工大学 | Test method for measuring expanding pressure and temperature of expanding material |
| CN105352990A (en) * | 2015-12-24 | 2016-02-24 | 哈尔滨工业大学 | Device and method for testing volume deformation of organic phase-change heat storage material |
| CN105890836A (en) * | 2016-04-27 | 2016-08-24 | 中国矿业大学(北京) | Device for measuring expansion pressure of soundless cracking agent |
| CN106680463A (en) * | 2017-01-19 | 2017-05-17 | 南京工程学院 | True 3D swelling-shrinking instrument capable of calculating swelling-shrinking deformation of soil sample on basis of water volume change |
| CN106769419A (en) * | 2017-02-22 | 2017-05-31 | 中国矿业大学 | A kind of bentonitic expansive force experimental rig and method of testing |
| CN107024373A (en) * | 2017-04-27 | 2017-08-08 | 上海市政工程设计研究总院（集团）有限公司 | A kind of three axle soil-cutter devices |
| CN109141720A (en) * | 2018-10-18 | 2019-01-04 | 大连理工大学 | A kind of device measuring clay swell power |
| CN110568003A (en) * | 2019-08-20 | 2019-12-13 | 北京交通大学 | heating and water supplementing expansion instrument |
| CN114778801A (en) * | 2022-05-12 | 2022-07-22 | 吉力此且 | Three-dimensional expansive force testing device and method for rock and soil mass |
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| EP0126010A1 (en) * | 1983-05-17 | 1984-11-21 | INTRAFOR-COFOR (Société Anonyme) | Devices for determining the variations of the size of a deformable and inflatable cell thrusted into the ground and subjected to gradients of internal pressure |
| JP2001116747A (en) * | 1999-10-20 | 2001-04-27 | Osaka Gas Co Ltd | Testing apparatus for compaction in horizontal direction of foundation material |
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| CN102221600A (en) * | 2011-06-03 | 2011-10-19 | 同济大学 | Expansion force and saturated permeation multifunctional tester |
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| CN102539244A (en) * | 2012-02-21 | 2012-07-04 | 上海大学 | Unsaturated soil anisotropic consolidation test device |
| CN102735800A (en) * | 2012-06-27 | 2012-10-17 | 兰州大学 | Measurement apparatus for swelling force change of buffer backfill material along with water absorption change, and measurement method thereof |
| 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 |
| CN102914631A (en) * | 2012-10-16 | 2013-02-06 | 上海大学 | Testing device for measuring expansive force of soil sample in real time |
| JP2013033002A (en) * | 2011-08-03 | 2013-02-14 | Fujita Corp | Water immersion expansion test method and water immersion expansion test device of expansive material and banking construction method |
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2013
- 2013-07-23 CN CN201310311612.8A patent/CN103499678B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126010A1 (en) * | 1983-05-17 | 1984-11-21 | INTRAFOR-COFOR (Société Anonyme) | Devices for determining the variations of the size of a deformable and inflatable cell thrusted into the ground and subjected to gradients of internal pressure |
| JP2001116747A (en) * | 1999-10-20 | 2001-04-27 | Osaka Gas Co Ltd | Testing apparatus for compaction in horizontal direction of foundation material |
| CN101187643A (en) * | 2007-12-06 | 2008-05-28 | 上海交通大学 | Solid-liquid phase change material normal pressure thermal expansion rate and work volume digital measuring device |
| CN102221600A (en) * | 2011-06-03 | 2011-10-19 | 同济大学 | Expansion force and saturated permeation multifunctional tester |
| CN102230931A (en) * | 2011-06-15 | 2011-11-02 | 中国地质大学（武汉） | Dilatometer |
| JP2013033002A (en) * | 2011-08-03 | 2013-02-14 | Fujita Corp | Water immersion expansion test method and water immersion expansion test device of expansive material and banking construction method |
| CN102539244A (en) * | 2012-02-21 | 2012-07-04 | 上海大学 | Unsaturated soil anisotropic consolidation test device |
| CN102735800A (en) * | 2012-06-27 | 2012-10-17 | 兰州大学 | Measurement apparatus for swelling force change of buffer backfill material along with water absorption change, and measurement method thereof |
| 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 |
| CN102914631A (en) * | 2012-10-16 | 2013-02-06 | 上海大学 | Testing device for measuring expansive force of soil sample in real time |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913557B (en) * | 2014-03-18 | 2015-07-29 | 山东科技大学 | A kind of rock free swelling rate and Water ratio determination apparatus and using method thereof |
| CN103913557A (en) * | 2014-03-18 | 2014-07-09 | 山东科技大学 | Device for measuring the free swelling rate and the water content of rock and using method thereof |
| CN105116108B (en) * | 2015-08-10 | 2017-03-08 | 华北理工大学 | A kind of measurement intumescent material swells pressure and the method for testing of temperature |
| CN105116108A (en) * | 2015-08-10 | 2015-12-02 | 华北理工大学 | Test method for measuring expanding pressure and temperature of expanding material |
| CN105352990B (en) * | 2015-12-24 | 2017-11-07 | 哈尔滨工业大学 | A kind of method of testing of Organic phase change thermal storage material cubic deformation |
| CN105352990A (en) * | 2015-12-24 | 2016-02-24 | 哈尔滨工业大学 | Device and method for testing volume deformation of organic phase-change heat storage material |
| CN105890836A (en) * | 2016-04-27 | 2016-08-24 | 中国矿业大学(北京) | Device for measuring expansion pressure of soundless cracking agent |
| CN106680463A (en) * | 2017-01-19 | 2017-05-17 | 南京工程学院 | True 3D swelling-shrinking instrument capable of calculating swelling-shrinking deformation of soil sample on basis of water volume change |
| CN106769419A (en) * | 2017-02-22 | 2017-05-31 | 中国矿业大学 | A kind of bentonitic expansive force experimental rig and method of testing |
| CN107024373A (en) * | 2017-04-27 | 2017-08-08 | 上海市政工程设计研究总院（集团）有限公司 | A kind of three axle soil-cutter devices |
| CN109141720A (en) * | 2018-10-18 | 2019-01-04 | 大连理工大学 | A kind of device measuring clay swell power |
| CN110568003A (en) * | 2019-08-20 | 2019-12-13 | 北京交通大学 | heating and water supplementing expansion instrument |
| CN114778801A (en) * | 2022-05-12 | 2022-07-22 | 吉力此且 | Three-dimensional expansive force testing device and method for rock and soil mass |
| CN114778801B (en) * | 2022-05-12 | 2023-12-29 | 中铁十二局集团第四工程有限公司 | Three-dimensional expansion force testing device and testing method for rock-soil body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103499678B (en) | 2015-06-03 |
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Granted publication date: 20150603 Termination date: 20190723 |