CN205374242U - Graded broken stone osmotic coefficient testing experiment device - Google Patents
Graded broken stone osmotic coefficient testing experiment device Download PDFInfo
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- CN205374242U CN205374242U CN201521095499.5U CN201521095499U CN205374242U CN 205374242 U CN205374242 U CN 205374242U CN 201521095499 U CN201521095499 U CN 201521095499U CN 205374242 U CN205374242 U CN 205374242U
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Abstract
The utility model discloses a graded broken stone osmotic coefficient testing experiment device, it includes test specimen tube, base and water supply installation. In order to prevent that test specimen tube and base interlinkage department from taking place to leak, be equipped with rubber circle recess on the test specimen tube bottom plate, test specimen tube one side is equipped with three round hole and is used for connecting the glass pressure -measuring pipe, tests the water head in the process of the test to fix on the scale plate, be equipped with two round holes at its corresponding opposite side and be used for connecting control tube and warning pipe, be used for overflow and infiltration respectively in the process of the test to the height of control tube is adjusted through sliding bracket, be equipped with the bolt hole and make the test specimen tube pass through the bolt fastening with the base to be in the same place on the test specimen tube bottom plate with on the base. The utility model discloses can indoor test high -speed railway road bed foundation bed top layer graded broken stone osmotic coefficient (i) k (i), experimental factor is controllable, convenient operation, road bed foundation bed top layer testing technique means have further been richened to the field test's that significantly reduces work load.
Description
Technical field
This utility model relates to a kind of graded broken stone infiltration coefficient experimental apparatus for testing and experimental technique thereof, belongs to laboratory soil test technical field, is particularly suited for the infiltration coefficient at indoor test Subgrade Bed of High-speed Railway top layer graded broken stone.
Background technology
Graded broken stone is natural building material important in subgrade engineering, and permeability is the important parameter good and bad as inspection graded broken stone.Therefore, in order to study graded broken stone, it is ensured that the stability of graded broken stone, the permeability of research graded broken stone, the good and bad tool for judging graded broken stone has very important significance.
For a long time, for graded broken stone infiltration coefficient law study, western countries maintain the leading position, and China studies relatively later.And for the railway aspect of China, graded broken stone gets more and more as the application filling ground, such as high-speed railway and Frozen Earth Railway Roadbed, but owing to existing TST-70 constant head lysimeter is due to the restriction of barrel dliameter, the infiltration coefficient of permeability apparatus test is had very big discreteness by the impact of graded broken stone grain composition, experimental error is very big, but the barrel dliameter being greatly increased permeability apparatus is more beneficial for eliminating the restriction to barrel dliameter of the graded broken stone grain composition, but workload can be increased simultaneously, cause operation inconvenience, this allows for the research in detail of the permeability apparatus finding suitable size barrel dliameter is become a problem demanding prompt solution.
Utility model content
The technical problems to be solved in the utility model is to provide the graded broken stone infiltration coefficient experimental apparatus for testing that a kind of barrel dliameter is optimum, simple to operate, accurate efficiently, be easy to control.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: a kind of graded broken stone infiltration coefficient experimental apparatus for testing, and its key technology is in that: it includes test specimen tube, for fixing the base of test specimen tube and being positioned at the water supply installation above test specimen tube；
Described test specimen tube includes metal stack shell and is positioned at the metal base plate below metal stack shell；
Described metal stack shell outer wall side is provided with the glass pressure tube meter of pressure tap and pressure tap connection and is positioned at the scale plate at the glass pressure tube meter back side, the opposite side outer wall of described metal stack shell is provided with spillway hole, be positioned at the water seepage hole below spillway hole and the overflow pipe that is connected with spillway hole is connected with water seepage hole regulates pipe and for regulating the sliding support of pipe height, and described sliding support is positioned at outside metal stack shell；
Described metal base plate has been provided with the first bolt hole of fixation and has prevented the rubber ring groove leaked, and is equipped with rubber ring in described rubber ring groove；
Described base includes circular metal plate and second bolt hole corresponding with the first bolt hole position being located on circular metal plate to rise fixation；
Described water supply installation includes for bucket and the feed pipe being positioned at water supply bottom of the barrel, and described feed pipe exit position is positioned at above test specimen tube.
Preferably, described rubber ring groove diameter is 5-6mm, and the degree of depth is 3-4mm.
Preferably, described metal base plate and circular metal plate are fixed by bolt.
Further improving, described circular metal plate is provided with and rubber ring can be made to be fitted tightly over the spiral lamination between test specimen tube and base, and this screw thread stricture of vagina position is corresponding with described rubber ring groove location.
Preferably, described metal barrel diameter is 300mm, and wall thickness is 5mm, is highly 550mm.
Preferably, three setting up and down of described pressure tap, the center distance of adjacent two is 150mm, and the pressure tap of the top cylinder top spacing from test specimen tube is 140mm, and described pressure tap internal diameter is 5mm, wall thickness is 0.75mm.
Preferably, the cylinder top spacing of described spillway hole centre-to-centre spacing test specimen tube is 80mm, is 400mm from water seepage hole center, and holes dimensional standard is consistent with pressure tap.
Further improving, described feed pipe is provided with tongs.
Adopt and have the beneficial effects that produced by technique scheme:
1, this utility model is provided with test specimen tube, base and water supply installation, and overall structure is fairly simple, simple to operate, efficiently facilitates, and result of use is good, effectively tests the infiltration coefficient of graded broken stone.
2, owing to adopting this device can carry out in laboratory, utilize optimal size test specimen tube, eliminate the discreteness of the data of the conventional permeameter of graded broken stone level pairing, significantly eliminate the triviality of on-the-spot test, improve experiment work efficiency；Soil sample when simultaneously also ensure that test every time has identical initial condition, it is possible to accurately controls the experimental condition of each sample, is effectively increased the comparative of test data.
3, this utility model finds in conjunction with the permeability test of different size barrel dliameter and devises the permeability apparatus of a kind of optimum barrel dliameter testing effect stability, and it can the infiltration coefficient of Complete test graded broken stonek, experimental factor is controlled, easy to operate, greatly reduces the workload of on-the-spot test, and test result has the advantage of stability, substantially increases the problem that original permeability apparatus test discreteness is big, enriches soil test technique means.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of this utility model base；
Fig. 3 is the schematic diagram of this utility model water supply installation；
Wherein, 1, test specimen tube, 1-1, metal stack shell, 1-2, metal base plate, 1-3, pressure tap, 1-4 glass pressure tube meter, 1-5 scale plate, 1-6, spillway hole, 1-7, water seepage hole, 1-8, overflow pipe, 1-9 regulates pipe, 1-10, sliding support, 1-11, the first bolt hole, 1-12, rubber ring groove；2, base, 2-1, the second bolt hole, 2-2, circular metal plate；3 water supply installations, 3-1, confession bucket, 3-2 feed pipe.
Detailed description of the invention
In order to be illustrated more clearly that the invention embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Referring to accompanying drawing 1-accompanying drawing 3, the present embodiment includes test specimen tube 1, is positioned at the base 2 below test specimen tube 1 and is positioned at the water supply installation 3 above test specimen tube 1.
Described test specimen tube 1 includes metal stack shell 1-1 and is positioned at the metal base plate 1-2 below metal stack shell 1-1.Described metal stack shell 1-1 internal diameter is 300mm, and wall thickness is 5mm, is highly 550mm, and the specification of metal stack shell 1-1 can be arranged according to actual needs.
Described metal stack shell 1-1 outer wall side is provided with pressure tap 1-3 and the pressure tap 1-3 glass pressure tube meter 1-4 connected and is positioned at the scale plate 1-5 at the glass pressure tube meter 1-4 back side, the opposite side outer wall of described metal stack shell 1-1 is provided with spillway hole 1-6, be positioned at the water seepage hole 1-7 below spillway hole 1-6 and overflow pipe 1-8 and the water seepage hole 1-7 that is connected with spillway hole 1-6 is connected regulates pipe 1-9 and sliding support 1-10, described sliding support 1-10 for regulating pipe 1-9 height are positioned on the right side of metal stack shell 1-1 (for Fig. 1).Glass pressure tube meter 1-4 tests water-head in process of the test.Three setting up and down of described pressure tap 1-3, the center distance of adjacent two is 150mm, and the pressure tap 1-3 of the top cylinder top spacing from test specimen tube 1 is 140mm, and described pressure tap 1-3 internal diameter is 5mm, wall thickness is 0.75mm.The cylinder top spacing from test specimen tube 1 at described spillway hole 1-6 center is 80mm, is 400mm from water seepage hole 1-7 center, and spillway hole 1-6 is consistent with pressure tap 1-3 with water seepage hole 1-7 dimensional standard, and equal internal diameter is 5mm, wall thickness is 0.75mm.
Described metal base plate 1-2 has been provided with the first bolt hole 1-11 of fixation and has prevented the rubber ring groove 1-12 leaked, described rubber ring groove 1-12 diameter is 5-6mm, the degree of depth is 3-4mm, is equipped with rubber ring, it is prevented that leak bottom test specimen tube 1 in described rubber ring groove 1-12.Described first bolt hole 1-11 is evenly distributed on metal base plate 1-2.Described base 2 includes circular metal plate 2-2 and the second bolt hole 2-1 being positioned at circular metal plate 2-2 on fixation, and described metal base plate 1-2 and circular metal plate 2-2 fixes by bolt.Described circular metal plate 2-2 is provided with spiral lamination, and this spiral lamination position is corresponding with described rubber ring groove location, its can increasing friction force, and rubber ring can be made more to be fitted tightly between test specimen tube and base.
Described water supply installation 3 includes for bucket 3-1 and is positioned at for the feed pipe 3-2 bottom bucket 3-1；Described feed pipe 3-2 is provided with tongs.
This utility model can at the infiltration coefficient of indoor test Subgrade Bed of High-speed Railway top layer graded broken stone.
The using method of this assay device is as follows:
First rubber ring groove 1-12 will put into rubber ring, and test specimen tube 1 utilizes with base 2 first bolt hole 1-11 and the second bolt hole 2-1 by together with M24 is bolted to, then on pressure tap 1-3, connect glass pressure tube meter 1-4 respectively, spilling water water hole 1-6 connects overflow pipe 1-8 and on water seepage hole 1-7, connects adjustment pipe 1-9, finally divide three layers by graded broken stone by test requirements document padding and compacting, and according to testing regulations operating operation test in layering padding and compacting specimen, after sample padding and compacting to specified altitude, start test.
During test, every layer of soil sample needs after having filled by regulating pipe 1-9 water-filling until sample is saturated.Three layers soil sample filled saturated with water-filling after, need to continue to make water level slowly increase until exceeding spillway hole 1-6.After standing several minutes, check whether each pressure-measuring pipe 1-4 water level flushes with spillway hole 1-6.As uneven at ordinary times, the pressure measurement mouth of pipe that available water suction ball alignment water level is low carries out water suction aerofluxus, till water level flushes.
Experimental technique of the present utility model is described by the examples below.
Graded broken stone (maximum gauge≤45mm) infiltration coefficient test implementation process is:
Rubber ring is embedded in rubber ring groove 1-12, then base 2 it is mounted to bottom test specimen tube 1 and fixes with M24 bolt, check whether immediately and leak, to be checked water-tight after, glass pressure tube meter 1-4 will be connected at pressure tap 1-3 respectively and be fixed on scale plate 1-5, spillway hole 1-6 connects overflow pipe 1-8 and on water seepage hole 1-7, connects adjustment pipe 1-9, and divide three layers by graded broken stone padding and compacting by test requirements document, period needs by regulating pipe 1-9 water-filling until sample is saturated after every layer of soil sample has been filled, until three layers soil sample filled saturated with water-filling after, need to continue to make water level slowly increase until making to be higher than spillway hole 1-6, and after standing several minutes, check whether each piezometric level flushes with spillway hole.As uneven at ordinary times, the pressure measurement mouth of pipe that available water suction ball alignment water level is low carries out water suction aerofluxus, till water level flushes, then according to hydrostatic head method permeability test is tested in " railway engineering earthwork test rule ".After end to be tested, unclamp base 2 and carry out tearing sample open, finally complete test.Wherein, the instrument of the not mentioned middle needs of described process of the test has stopwatch, graduated cylinder and thermometer, and described data acquisition requires over manual record mode.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from the spirit or scope of the invention, can realize in other embodiments.Therefore, the invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a graded broken stone infiltration coefficient experimental apparatus for testing, it is characterised in that: it includes test specimen tube (1), is used for fixing the base (2) of test specimen tube (1) and is positioned at the water supply installation (3) of test specimen tube (1) top；
Described test specimen tube (1) includes metal stack shell (1-1) and is positioned at metal stack shell (1-1) metal base plate (1-2) below；
Described metal stack shell (1-1) outer wall side is provided with pressure tap (1-3), the glass pressure tube meter (1-4) connected with pressure tap (1-3) and the scale plate (1-5) being positioned at glass pressure tube meter (1-4) back side, the opposite side outer wall of described metal stack shell (1-1) is provided with spillway hole (1-6), the water seepage hole (1-7) being positioned at spillway hole (1-6) lower section and the overflow pipe (1-8) being connected with spillway hole (1-6), the adjustment pipe (1-9) being connected with water seepage hole (1-7) and the sliding support (1-10) being used for regulating pipe (1-9) height, described sliding support (1-10) is positioned at metal stack shell (1-1) outside；
Described metal base plate (1-2) has been provided with first bolt hole (1-11) of fixation and has prevented the rubber ring groove (1-12) leaked, and is equipped with rubber ring in described rubber ring groove (1-12)；
Described base (2) includes circular metal plate (2-2) and second bolt hole (2-1) corresponding with the first bolt hole (1-11) position being located at circular metal plate (2-2) and having gone up fixation；
Described water supply installation (3) includes for bucket (3-1) and is positioned at the feed pipe (3-2) for bucket (3-1) bottom, and described feed pipe (3-2) exit position is positioned at test specimen tube (1) top.
2. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 1, it is characterised in that: described rubber ring groove (1-12) diameter is 5-6mm, and the degree of depth is 3-4mm.
3. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 1, it is characterised in that: described metal base plate (1-2) and circular metal plate (2-2) are fixed by bolt.
4. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 1, it is characterized in that: described circular metal plate (2-2) upper surface is provided with and rubber ring can be made to be fitted tightly over the spiral lamination between test specimen tube and base, and this spiral lamination position is corresponding with described rubber ring groove location.
5. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 1, it is characterised in that: described metal stack shell (1-1) internal diameter is 300mm, and wall thickness is 5mm, is highly 550mm.
6. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 1, it is characterized in that: three setting up and down of described pressure tap (1-3), the center distance of adjacent two is 150mm, the pressure tap (1-3) of the top cylinder top spacing from test specimen tube (1) is 140mm, and described pressure tap (1-3) internal diameter is 5mm, wall thickness is 0.75mm.
7. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 5, it is characterized in that: the cylinder top spacing from test specimen tube (1) at described spillway hole (1-6) center is 80mm, being 400mm from water seepage hole (1-7) center, holes dimensional standard is consistent with pressure tap (1-3).
8. a kind of graded broken stone infiltration coefficient experimental apparatus for testing according to claim 1, it is characterised in that: described feed pipe (3-2) is provided with tongs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095499.5U CN205374242U (en) | 2015-12-25 | 2015-12-25 | Graded broken stone osmotic coefficient testing experiment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095499.5U CN205374242U (en) | 2015-12-25 | 2015-12-25 | Graded broken stone osmotic coefficient testing experiment device |
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| CN205374242U true CN205374242U (en) | 2016-07-06 |
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| CN201521095499.5U Expired - Fee Related CN205374242U (en) | 2015-12-25 | 2015-12-25 | Graded broken stone osmotic coefficient testing experiment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338463A (en) * | 2016-10-12 | 2017-01-18 | 山西省交通科学研究院 | coarse granular material permeability coefficient testing device and testing method |
| CN106918536A (en) * | 2017-02-24 | 2017-07-04 | 同济大学 | The measure device and method of the vertical effective diffusion cofficient of solute in a kind of saturation soil layer |
| CN108445192A (en) * | 2018-05-31 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of multi-functional frost heave, thaw collapse experimental rig |
| CN113109231A (en) * | 2021-03-30 | 2021-07-13 | 中国电建集团西北勘测设计研究院有限公司 | Pressure measuring extension pipe for large-scale penetration test and operation method thereof |
-
2015
- 2015-12-25 CN CN201521095499.5U patent/CN205374242U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338463A (en) * | 2016-10-12 | 2017-01-18 | 山西省交通科学研究院 | coarse granular material permeability coefficient testing device and testing method |
| CN106918536A (en) * | 2017-02-24 | 2017-07-04 | 同济大学 | The measure device and method of the vertical effective diffusion cofficient of solute in a kind of saturation soil layer |
| CN108445192A (en) * | 2018-05-31 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of multi-functional frost heave, thaw collapse experimental rig |
| CN108445192B (en) * | 2018-05-31 | 2023-11-17 | 北京城建集团有限责任公司 | Multifunctional frost heaving and thawing test device |
| CN113109231A (en) * | 2021-03-30 | 2021-07-13 | 中国电建集团西北勘测设计研究院有限公司 | Pressure measuring extension pipe for large-scale penetration test and operation method thereof |
| CN113109231B (en) * | 2021-03-30 | 2022-04-01 | 中国电建集团西北勘测设计研究院有限公司 | Pressure measuring extension pipe for large-scale penetration test and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161209 Address after: 050043 Hebei province Shijiazhuang North Second Ring Road No. 17 Patentee after: Shijiazhuang Tiedao University Patentee after: CHINA RAILWAY CORPORATION Address before: 050043 Hebei province Shijiazhuang North Second Ring Road No. 17 Patentee before: Shijiazhuang Tiedao University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20181225 |