CN201397328Y - Large test loess block disintegration tester - Google Patents
Large test loess block disintegration tester Download PDFInfo
- Publication number
- CN201397328Y CN201397328Y CN2009200324236U CN200920032423U CN201397328Y CN 201397328 Y CN201397328 Y CN 201397328Y CN 2009200324236 U CN2009200324236 U CN 2009200324236U CN 200920032423 U CN200920032423 U CN 200920032423U CN 201397328 Y CN201397328 Y CN 201397328Y
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- urceolus
- loess
- water injection
- inner core
- test block
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Abstract
The utility model discloses a large test loess block disintegration tester, which comprises an outer cylinder, an inner cylinder and a hung net, the tops of the outer cylinder and the inner cylinder are open, the bottoms of the outer cylinder and the inner cylinder are closed, a hanging hook is vertically and downwardly arranged on the bottom of the inner cylinder, the hung net is hung on the hanging hook, the sidewall of the outer cylinder is provided with a water injection hole and a spillover hole, a water injection tube which is used to inject water into the outer cylinder is inserted in the water injection hole, the spillover hole is rectangular, and a spillover tube is mounted on the spillover hole; the sidewall of the outer cylinder is provided with graduation marks, and a reading pointer which is used to indicate the graduation marks is arranged horizontally on the outside of the sidewall of the inner cylinder. The utility model has high precision and little error, so the utility model is applicable to disintegration test on large test loess blocks, and moreover, the utility model is durable, so the utility model can meet the requirements of long-distance transportation andfield test.
Description
Technical field
The utility model relates to a kind of loess performance measurement instrument, especially relates to the big test block disintegration tester of a kind of loess.
Background technology
The loess disintegrative is one of important physical mechanical property of loess, the loess disintegrative is studied have important theory and realistic meaning.The disintegrative of loess more and more comes into one's own, but because the limitation of existing experimental technique and means causes present research to the loess disintegrative still not goed deep into, to such an extent as to the many problems of engineering and scientific research field can not solve effectively.
Floating drum, the web plate that hangs over the floating drum lower end and glass urceolus that the existing test apparatus (or claiming the humidifying instrument) of measuring the loess disintegrative is indicated by the band scale constitute, and it has following shortcoming and defect:
1, owing to this instrument is not to aim at the disintegrative of measuring loess to design, therefore when the loess disintegrative is tested, have and be difficult to satisfy testing requirements aspect many, especially be subjected to the restriction of physical dimension (can not provide enough buoyancy as floating drum, and range is also very limited), and can not carry out slaking test to the big test block of loess.
2, aspect precision, because can only be according to scale reading at the neat water surface of floating drum place, and unavoidably will cause the fluctuation of the water surface in the process that promptly the loess sample is immersed in the urceolus, so the existence of the fluctuation of the water surface and the water surface and floating drum contact site meniscus must cause reading error.
3, aspect durability, because existing instrument is made with glass material, its intensity is low and frangible, should not grow apart from jolting and transport, and the big test block of loess exactly should not be grown apart from being carried to the laboratory, therefore can not satisfy the requirement of the big test block field test of loess.
In addition, owing to do not have rest around being used to place the web plate of sample, easily cause the crooked even slippage of sample to cause test failure in the experiment because of the sample disintegration is uneven; Outer tube bottom does not have base, makes to be difficult to keep instrument stabilizer when using; Outer tube bottom does not have the device of adjusting level, is difficult to when causing using guarantee that instrument keeps vertically in the vertical, and these all cause direct influence to the use of instrument.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provides a kind of loess big test block disintegration tester, its precision height, error is little, be suitable for the slaking test of large volume loess test block, and durability is good, is convenient to the requirement of remote transportation and field test.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the big test block disintegration tester of a kind of loess, the urceolus that comprises vertical setting, be arranged on inner core in the urceolus and the linked network that is used to place the loess test block, the top end opening of described urceolus and inner core and bottom sealing, bottom at described inner core is provided with hook straight down, described linked network articulates and is connected on the hook, it is characterized in that: have water injection hole and spillway hole on the sidewall of described urceolus, and be provided with the water injection pipe that is used for to the urceolus intracontour waterflooding by water injection hole, described water injection pipe stretches into the inside at urceolus, and the bottom of water injection pipe is lower than spillway hole, described spillway hole is on rectangular opening and its overflow pipe to be installed, and described overflow pipe is arranged on the outside of urceolus; The sidewall of described urceolus is provided with scale mark, and is horizontally disposed with the reading pointer that is useful on this scale mark of indication in the sidewall outside of inner core.
The interior of urceolus and be positioned at water injection hole below be bonded with the water injection pipe supporting plate of horizontal direction, have on the described water injection pipe supporting plate and be used for the water injection pipe pilot hole that water injection pipe vertically passes.
Described reading pointer is that the bottom surface is bonded on the inner core sidewall and closed angle end is the wedge shape pointer of indication end, and the distance between described closed angle end and the outer tube inner wall is 0.2-1mm.
The sidewall outside of described inner core is the radial positioning pointer that is provided with a plurality of horizontal directions, and prevents that by positioning pointer inner tank theca and outer tube inner wall from contacting.
Described positioning pointer is that the bottom surface is bonded in the triangle pointer on the inner core sidewall, and the top of positioning pointer and the distance between the outer tube inner wall are 0.2-1mm.
Described urceolus is installed on the urceolus base, evenly be provided with three horizontal adjustment bolt groups on the described urceolus base, described horizontal adjustment bolt group comprises regulates bolt and base, the top of described base has threaded vertical blind hole, described adjusting bolt vertically interts and is fixed on the urceolus base, and by adjusting the levelness that the screw rod of respectively regulating bolt stretches into the length assurance urceolus base in the vertical blind hole of correspondence.
Described linked network by the rectangle steel silk screen, be separately positioned on the opposite end of described woven wire and upwardly extending two guardrails, be connected two between the guardrail the extension arm and be arranged on and hang on the arm and the link that is used for being connected with described hook constitutes, described guardrail becomes 90-120 ° of angle with woven wire, the steel wire at the other both ends of described woven wire stretches out in the woven wire outside and extends upward, and this extension becomes 90-150 ° of angle with woven wire.
The woven wire of described linked network is provided with poly (methyl methacrylate) plate.
The openend of described urceolus is provided with the urceolus top cover.
Described urceolus and inner core are made by organic glass.
The utility model compared with prior art has the following advantages:
1, improved reading accuracy.According to the reading pointer on the inner core on urceolus indication and therefore reading has been avoided the reading error that causes because of water-level fluctuation and meniscus; It is more stable that She Ji urceolus base and horizontal adjustment bolt group make the urceolus placement simultaneously, and urceolus is kept vertically, and this has also guaranteed the accurate of reading; In addition, because the setting of spillway hole and water injection pipe has guaranteed that the water level in the urceolus is in steady state, and has subdued the fluctuation of the water surface, so also can be used as reference according to the numerical value that scale mark read on the inner core always.
2, the scope of application is big.The utility model provides reliable buoyancy by the bigger inner core of volume, therefore can be suitable for the slaking test of large volume loess test block, facts have proved that the utility model can be used for slaking test is carried out in the test block of 15cm * 15cm * 15cm.The increase of test block size, make that gathering the natural loess sample that contains hole or crack in actual engineering or scientific research becomes possibility, also make simultaneously in test block artificial hole or crack become possibility, thereby use this instrument to test, solved the problem that original instrument cann't be solved the loess test block of different voidages.In addition, because the reading accuracy height so the utility model also is suitable for the loess test block slaking test of reduced size, therefore uses the utility model to test the loess test block of difformity and size, so as to the boundary effect of research loess disintegrative.
3, durability is good.The utility model has adopted the higher organic glass of intensity to replace original glass material, and is provided with the urceolus top cover, makes the utility model not only durable in use, and is convenient to length apart from transporting, and therefore is more suitable for the field condition test.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model urceolus.
Fig. 3 vertically regulates the structural representation of bolt for the utility model.
Fig. 4 is the structural representation of the utility model threaded base.
Fig. 5 is the structural representation of the utility model inner core.
Fig. 6 is the structural representation of the utility model positioning pointer.
Fig. 7 is the structural representation of the utility model reading pointer.
Fig. 8 is the structural representation of the utility model linked network.
Description of reference numerals:
The 1-urceolus; The 2-inner core; The 3-linked network;
4-urceolus base; The test block of 5-loess; 6-urceolus top cover;
The 7-spillway hole; The 8-overflow pipe; 9-initial water level index line;
10-horizontal adjustment bolt group; The 11-water injection pipe; 12-water injection pipe supporting plate;
The 13-water injection hole; 14-regulates bolt; The 15-base;
The 16-positioning pointer; The 17-hook; 18-reading pointer.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 5, the utility model comprises urceolus 1, inner core 2 and the linked network 3 of vertical setting, and inner core 2 is arranged on the inside of urceolus 1, is provided with the linked network 3 that is used to place loess test block 5 below inner core 2, wherein, the top end opening of urceolus 1 and inner core 2 and bottom sealing.Because loess test block 5 is constantly suction in disintegrating procedue, then cause the decline of urceolus 1 water level inside, this just need be to the intracontour waterflooding of urceolus 1, so on the sidewall of urceolus 1, have water injection hole 13, and being provided with the water injection pipe 11 that is used for to urceolus 1 intracontour waterflooding by water injection hole 13, water injection pipe 11 stretches into the inside at urceolus 1; Simultaneously, constant for the maintenance that makes urceolus 1 water level inside, on the sidewall of urceolus 1, have spillway hole 8, spillway hole 8 is the uniform rectangular opening of spilling water, and overflow pipe 8 is installed on the spillway hole 8, overflow pipe 8 is arranged on the outside of urceolus 1.Wherein, the bottom of water injection pipe 11 is lower than spillway hole 8, and like this, water injection pipe 11 is when water filling, and water injects from the underwater, directly is punched on the outer wall of inner core 2 with the water that prevents to inject or collides the water level fluctuation that causes in the urceolus 1 because of current.Be provided with hook 17 straight down in the bottom of inner core 2, linked network 3 articulates and is connected on the hook 17; The sidewall of urceolus 1 is provided with scale mark, and be horizontally disposed with the reading pointer 18 that is useful on this scale mark of indication in the sidewall outside of inner core 2, by the indication of reading pointer 18 on scale mark, obtain inner core 2 and be immersed in length in the water constantly, at last by calculating the different disintegration amounts of loess constantly in difference.Also be provided with scale mark on the sidewall of inner core 2, the reading that can emerge by this scale mark in process of the test is as the reference reading.
The interior of urceolus 1 and be positioned at water injection hole 13 below be bonded with the water injection pipe supporting plate 12 of horizontal direction, have on the water injection pipe supporting plate 12 and be used for the water injection pipe pilot hole that water injection pipe 11 vertically passes.In the present embodiment, upper and lower settings has two water injection pipe supporting plates 12 below water injection hole 13
Urceolus 1 is installed on the urceolus base 4, evenly be provided with three horizontal adjustment bolt groups 10 on the urceolus base 4, described horizontal adjustment bolt group 10 comprises regulates bolt 14 and base 15, wherein, the top of base 15 has threaded vertical blind hole, adjusting bolt 14 vertically interts and is fixed on the urceolus base 4, by adjusting the levelness that the screw rod of respectively regulating bolt 14 stretches into the length assurance urceolus base 4 in described vertical blind hole, guarantees the vertical degree and the stability of urceolus 1 then.
Linked network 3 by the rectangle steel silk screen, be separately positioned on the opposite end of described woven wire and upwardly extending two guardrails, be connected two between the guardrail the extension arm and be arranged on and hang on the arm and be used for and link up with 17 links that are connected and constitute.For preventing loess test block 5 end slippage from linked network 3 in disintegrating procedue, two guardrails are inclined design: guardrail becomes 90-120 ° of angle with woven wire, the steel wire that the two ends of guardrail are not set on the linked network 3 stretches out outside and extend upward at woven wire, and this extension becomes 90-150 ° of angle with woven wire.
The openend of urceolus 1 is provided with urceolus top cover 6.Urceolus top cover 6 is used for matching to guarantee the level of urceolus base 4 with horizontal adjustment bolt group 10, before the loess slaking test begins, urceolus top cover 6 is covered on urceolus 1, on urceolus top cover 6, place compass, and adjust each horizontal adjustment bolt group 10 according to compass, after the adjustment, take off urceolus top cover 6, the slaking test of beginning loess.Urceolus top cover 6 is idle or add a cover in transit at the utility model, so that preserve each assembly, also can keep the cleaning inside of urceolus 1 simultaneously.Urceolus 1 and inner core 2 are made by organic glass.Woven wire is provided with poly (methyl methacrylate) plate, with the needs (when studying the boundary effect of disintegrative as need) that satisfy different tests.
For making things convenient for test operation and reducing test error, volume size according to loess sample 5, sidewall subscript at urceolus 1 is shown with initial water level index line 9, like this before beginning test, make the water level in the urceolus 1 remain on initial water level index line 9 places, when inner core 2 was put into inner core 1, inner core 1 middle water level reached the position of spillway hole 8 just.In the present embodiment, be marked with the initial water level index line 9 of three differing heights, with the test of the loess sample 5 that is applicable to different volumes at the sidewall of urceolus 1.
The process of using the utility model to carry out the loess slaking test is: at first, the linked network 3 that is placed with loess test block 5 is articulated in the bottom of inner core 2, inner core 2 is vertically put into the inner core 1 that certain water gaging is housed in advance, and at this moment, urceolus 1 water level inside is in the position of spillway hole 7; Survey the every interval 10-20 of note during second, reading pointer 18 is at the indication numerical value of urceolus 1 sidewall high scale mark, and describes the disintegration situation of this time point loess sample 5, according to the speed of loess sample 5 disintegrations, can suitably shorten or increase the time interval that survey is read; After sample fell by grid fully, test promptly came to an end.If during the 5 not disintegrations for a long time of loess sample, then write down its situation in water.In this process of the test, water injection pipe 11 continues to urceolus 1 intracontour waterflooding, and by the overflow pipe 8 on the spillway hole 8, makes the position that remains on spillway hole 8 of urceolus 1 water level inside.
The big test block disintegration tester of loess principle of work can be expressed as following formula mainly according to Archimedes' principle and statics balance principle:
f＝LSρ
wg-G
0＝G (1)
Because inner core 2 deadweights, hook 17 buoyant weights and linked network 3 buoyant weight sum G
0Constant, so have:
Δf＝ΔLSρ
wg＝ΔG (2)
Wherein, in (1) and (2) formula, the net buoyancy that f provides for buoyancy system, L is the maximal value (reading after loess sample 5 decomposes fully) that inner core 2 immerses length in the water, and S is inner core 2 base areas, and LS is inner core 2 water-immersed volumes, ρ
wBe the unit weight of water, g is an acceleration of gravity, G
0Be inner core 2 deadweights, hook 17 buoyant weights and linked network 3 buoyant weight sums, G is the buoyant weight of loess test block 5.Δ L is the variable quantity (different reading differences constantly when promptly testing) that inner core 2 immerses length in the water, and Δ f is the reduction of buoyancy, and Δ G is the disintegration amount of loess test block 5.
(2) in the formula, because S, ρ
w, g is definite value, so in the test
Be definite value.Therefore, L is that inner core 2 immerses the maximal value (reading after loess sample 5 decomposes fully) of length in the water, and establishes the test firm zero hour of t
0Reading be L
0, the reading of certain moment t is L in the slaking test process
t, then be to the t number percent that the disintegration amount of test block accounts for the test block total amount constantly the time:
This formula is the disintegration number percent of loess sample 5, knows if desired how many quality of certain time point loess sample 5 disintegration is, if with this number percent multiply by loess sample 5 gross mass.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. big test block disintegration tester of loess, the urceolus (1) that comprises vertical setting, be arranged on inner core (2) in the urceolus (1) and the linked network (3) that is used to place loess test block (5), the top end opening of described urceolus (1) and inner core (2) and bottom sealing, be provided with hook (17) straight down in the bottom of described inner core (2), described linked network (3) articulates and is connected on the hook (17), it is characterized in that: have water injection hole (13) and spillway hole (7) on the sidewall of described urceolus (1), and be provided with the water injection pipe (11) that is used for to urceolus (1) intracontour waterflooding by water injection hole (13), described water injection pipe (11) stretches into the inside in urceolus (1), and the bottom of water injection pipe (11) is lower than spillway hole (7), described spillway hole (7) is equipped with overflow pipe (8) on rectangular opening and its, and described overflow pipe (8) is arranged on the outside of urceolus (1); The sidewall of described urceolus (1) is provided with scale mark, and is horizontally disposed with the reading pointer (18) that is useful on this scale mark of indication in the sidewall outside of inner core (2).
2. according to the big test block disintegration tester of the described loess of claim 1, it is characterized in that: be bonded with the water injection pipe supporting plate (12) of horizontal direction in the interior of urceolus (1) and the below that is positioned at water injection hole (13), have on the described water injection pipe supporting plate (12) and be used for the water injection pipe pilot hole that water injection pipe (11) vertically passes.
3. according to claim 1 or the big test block disintegration tester of 2 described loess, it is characterized in that: described reading pointer (18) is bonded on inner core (2) sidewall for the bottom surface and closed angle end is the wedge shape pointer of indication end, and the distance between described closed angle end and urceolus (1) inwall is 0.2-1mm.
4. according to claim 1 or the big test block disintegration tester of 2 described loess, it is characterized in that: the sidewall outside of described inner core (2) is the radial positioning pointer (16) that is provided with a plurality of horizontal directions, and prevents that by positioning pointer (16) inner core (2) outer wall and urceolus (1) inwall from contacting.
5. according to the big test block disintegration tester of the described loess of claim 4, it is characterized in that: described positioning pointer (16) is bonded in triangle pointer on inner core (2) sidewall for the bottom surface, and the distance between the top of positioning pointer (16) and urceolus (1) inwall is 0.2-1mm.
6. according to claim 1 or the big test block disintegration tester of 2 described loess, it is characterized in that: described urceolus (1) is installed on the urceolus base (4), evenly be provided with three horizontal adjustment bolt groups (10) on the described urceolus base (4), described horizontal adjustment bolt group (10) comprises regulates bolt (14) and base (15), the top of described base (15) has threaded vertical blind hole, described adjusting bolt (14) vertically interts and is fixed on the urceolus base (4), and by adjusting the levelness that the screw rod of respectively regulating bolt (14) stretches into the length assurance urceolus base (4) in the vertical blind hole of correspondence.
7. according to claim 1 or the big test block disintegration tester of 2 described loess, it is characterized in that: described linked network (3) by the rectangle steel silk screen, be separately positioned on the opposite end of described woven wire and upwardly extending two guardrails, be connected two between the guardrail the extension arm and be arranged on the link of hanging on the arm and being used for being connected and constitute with described hook (17), described guardrail becomes 90-120 ° of angle with woven wire, the steel wire at the other both ends of described woven wire stretches out in the woven wire outside and extends upward, and this extension becomes 90-150 ° of angle with woven wire.
8. according to the big test block disintegration tester of the described loess of claim 7, it is characterized in that: the woven wire of described linked network (3) is provided with poly (methyl methacrylate) plate.
9. according to claim 1 or the big test block disintegration tester of 2 described loess, it is characterized in that: the openend of described urceolus (1) is provided with urceolus top cover (6).
10. according to claim 1 or the big test block disintegration tester of 2 described loess, it is characterized in that: described urceolus (1) and inner core (2) are made by organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200324236U CN201397328Y (en) | 2009-04-01 | 2009-04-01 | Large test loess block disintegration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200324236U CN201397328Y (en) | 2009-04-01 | 2009-04-01 | Large test loess block disintegration tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397328Y true CN201397328Y (en) | 2010-02-03 |
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ID=41619847
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200324236U Expired - Fee Related CN201397328Y (en) | 2009-04-01 | 2009-04-01 | Large test loess block disintegration tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN201397328Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495193A (en) * | 2011-11-11 | 2012-06-13 | 中国科学院寒区旱区环境与工程研究所 | Soil disintegration tester |
| CN102608293A (en) * | 2012-03-28 | 2012-07-25 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Buoyancy type soil lysimeter |
| CN104977246A (en) * | 2015-07-31 | 2015-10-14 | 韩少鹏 | Soil disintegration test device |
| CN106198925A (en) * | 2015-08-07 | 2016-12-07 | 韩少鹏 | The soil disintegration test device of Geotechnical Engineering and method of testing |
| CN107389491A (en) * | 2017-07-06 | 2017-11-24 | 武汉科技大学 | A kind of soil body disintegration experimental provision and application method |
-
2009
- 2009-04-01 CN CN2009200324236U patent/CN201397328Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495193A (en) * | 2011-11-11 | 2012-06-13 | 中国科学院寒区旱区环境与工程研究所 | Soil disintegration tester |
| CN102608293A (en) * | 2012-03-28 | 2012-07-25 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Buoyancy type soil lysimeter |
| CN104977246A (en) * | 2015-07-31 | 2015-10-14 | 韩少鹏 | Soil disintegration test device |
| CN104977246B (en) * | 2015-07-31 | 2017-09-15 | 北京原祓注册安全工程师事务所有限公司 | Geotechnical Engineering soil disintegration test device and method of testing |
| CN106198925A (en) * | 2015-08-07 | 2016-12-07 | 韩少鹏 | The soil disintegration test device of Geotechnical Engineering and method of testing |
| CN107389491A (en) * | 2017-07-06 | 2017-11-24 | 武汉科技大学 | A kind of soil body disintegration experimental provision and application method |
| CN107389491B (en) * | 2017-07-06 | 2020-07-24 | 武汉科技大学 | Soil disintegration experimental device and using method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20110401 |