CN102023129A - Tester of gradually loading slopes for multi-layer liner system - Google Patents
Tester of gradually loading slopes for multi-layer liner system Download PDFInfo
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- CN102023129A CN102023129A CN 201010514149 CN201010514149A CN102023129A CN 102023129 A CN102023129 A CN 102023129A CN 201010514149 CN201010514149 CN 201010514149 CN 201010514149 A CN201010514149 A CN 201010514149A CN 102023129 A CN102023129 A CN 102023129A
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- slope
- layer gasket
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- stiff baseplate
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Abstract
The invention discloses a tester of gradually loading slopes for a multi-layer liner system, which is characterized in that a baffle is welded on the upper surface of one end of a rigid base; one end of the rigid baseboard is supported against the baffle; the lower surface of the other end of the rigid baseboard is placed on a gradient regulating mechanism arranged at the other end of the rigid base; a fixed plated is welded on the upper surface of the other end of the rigid baseboard, and the multi-layer liner system and a loading plate with a taper angle are sequentially arranged on the upper surface of the other end of the rigid baseboard; weights with different weights are sleeved on the loading plate; the lower layer of the multi-layer liner system is adhered with the upper surface of the rigid baseboard, and the upper layer of the multi-layer liner system is adhered with the lower surface of the loading plate; and a laser ranging device installed on the fixed plate is connected with a reading gage. In the invention, the upper and lower surfaces with different degrees of the loading plate are adopted, so that the weights can be vertically loaded and achieve equal to or more than 200kPa of positive stress; the slippage interfaces and loads of the multi-layer liner system are determined at different slope angles, so that the relation between the frictional coefficient of the weakest interface inside and the load is obtained; and a rule that interface frictional coefficient is reduced while the load is increased is disclosed.
Description
Technical field
The present invention relates to a kind of experimental provision of measuring friction force, relate in particular to a kind of multi-layer gasket system and load the slope test unit step by step.
Background technology:
The multi-layer gasket system generally is made up of multiple geosynthetics such as nonweaven geotextile, soil engineering composite drainage network, geomembrane and geosynthetics bentonite pads, play the guide percolate and prevent the effect that the percolate seepage spreads, but multi-layer gasket internal system boundary strength is lower, easily causes landfill yard along the interface unstability.
At present, two kinds of methods of the general employing of the mensuration of liner system boundary strength: a kind of is large-scale direct shear test, two kinds of materials that are about to test are individually fixed in the shear box up and down of direct shear apparatus, apply the shearing of controlling again behind certain normal stress (normal stress is generally greater than 25kPa) under the shear rate, test its shear resistance; Another is the slope test, be about to two kinds of materials respectively fixedly on swash plate and the load plate bottom (its normal stress is generally less than 15kPa), swash plate rotates by constant angle speed, tests the change curve of its displacement with ramp angles, produce slippage until load plate, finally determine the shear resistance at this interface.
The said determination method can accurately be tested two kinds of shear resistances between the material, but is subject to two kinds of interfaces between the material, is difficult to realize the test of boundary strength between the multilayer material.More crucial is can simulate the actual forced status that the multi-layer gasket system loads step by step better with this kind method.
Summary of the invention
The object of the present invention is to provide a kind of multi-layer gasket system to load the slope test unit step by step, it can accurately determine slippage interface and the load thereof of multi-layer gasket system under specific slope angle.
The technical solution adopted in the present invention is:
The present invention includes rigid base, gradient governor motion, stiff baseplate, multi-layer gasket system, load plate, laser range finder, counterweight, stabilizer bar, fixed head and baffle plate.At rigid base one end upper surface welding baffle plate, stiff baseplate one end withstands on the baffle plate, stiff baseplate other end lower surface is placed on the gradient governor motion that is installed on the rigid base other end, stiff baseplate other end upper surface welding fixed head, at the stiff baseplate upper surface multi-layer gasket system is set, the multi-layer gasket upper strata is provided with a load plate with cone angle, stabilizer bar is arranged on the load plate, be with the counterweight of Different Weight on the stabilizer bar, lower floor of multi-layer gasket system and stiff baseplate upper surface bonding, multi-layer gasket system upper strata and load plate lower surface bonding; Be installed in laser range finder on the fixed head towards a side of load plate, laser range finder is connected with readout instrument.
Described gradient governor motion is that one group two the slope slope angle adjuster bars that can regulate slope angle build up.
The cone angle of described load plate is according to experiment needs setting, and changes a load plate with different oblique angles, and the load plate angle of taper equates with the slope slope angle.
The beneficial effect that the present invention has is:
1) the present invention's upper and lower surface of using load plate to have different angles makes counterweight can vertically load and reach 200kPa and above normal stress, satisfies the normal stress level of bottom liner system.
2) determine slippage interface and the load thereof of multi-layer gasket system under different slope angles, concern between the friction factor at weak interface and the load thereby obtain this multi-layer gasket internal system.
3) having disclosed multi-layer gasket system interface The friction coefficient load increases and the rule of minimizing.
Description of drawings
Accompanying drawing is a structural principle synoptic diagram of the present invention
Among the figure: 1, rigid base, 2, slope slope angle adjuster bar, 3, baffle plate, 4, stiff baseplate, 5, the multi-layer gasket system, 6, load plate, 7, laser range finder, 8, counterweight, 9, stabilizer bar, 10, fixed head.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in drawings, the present invention includes rigid base 1, gradient governor motion, stiff baseplate 4, multi-layer gasket system 5, load plate 6, laser range finder 7, counterweight 8, stabilizer bar 9, fixed head 10 and baffle plate 3; Rigid base 1 one end upper surfaces welding baffle plate 3, stiff baseplate 4 one ends withstand on the baffle plate 3, stiff baseplate 4 other end lower surfaces are placed on the gradient governor motion that is installed on rigid base 1 other end, stiff baseplate 4 other end upper surfaces welding fixed head 10, at stiff baseplate 4 upper surfaces multi-layer gasket system 5 is set, multi-layer gasket 5 upper stratas are provided with a load plate 6 with cone angle, stabilizer bar 9 is arranged on the load plate 6, be with the counterweight 8 of Different Weight on the stabilizer bar 9,5 lower floors of multi-layer gasket system and stiff baseplate 4 upper surfaces bonding, multi-layer gasket system 5 upper stratas and load plate 6 lower surfaces bonding; Be installed in laser range finder 7 on the fixed head 10 towards a side of load plate 6, laser range finder 7 is connected with readout instrument.
Described gradient governor motion is that one group two the slope slope angle adjuster bars 2 that can regulate slope angle build up.
The cone angle of described load plate 6 is according to experiment needs setting, and changes a load plate 6 with different oblique angles, and load plate 6 angle of taper equate with the slope slope angle.
Rigid base 1 and stiff baseplate 4 all adopt steel plate to make, rigid base 1 is the basis of whole test device, stiff baseplate 4 is loading plates of multi-layer gasket system 5, slope slope angle adjuster bar 2 is made by steel bar, be used for rigidity of support base plate 4 and change the slope slope angle, rigid base 1, stiff baseplate 4, slope slope angle adjuster bar 2 and baffle plate 3 constitute stable slope, laser range finder 7 is installed on the fixed head, the displacement of test load plate 6, layers of material in the multi-layer gasket system 5 is formed according to testing requirements, be positioned on the stiff baseplate 4, load plate 6 is made by steel plate, for satisfying the requirement of different slopes slope angle, makes a collection of load plate 6 with different cone angle, a stabilizer bar 9 is all welded in every load plate 6 upper surface centers, prevent to load when too high counterweight 8 and topple over, counterweight 8 adopts steel plates special, and each is heavy 20 kilograms, to satisfy the requirement of high load, counterweight 8 is installed one by one at load plate 6 upper surfaces.Produce slippage until load plate along certain weak interface of multi-layer gasket system.
Select needed slope slope angle adjuster bar 2 according to testing requirements, with slope slope angle adjuster bar 2, stiff baseplate 4 is installed in successively forms the slope with certain angle on the rigid base 1, and guarantee that stiff baseplate 4 right-hand members are near baffle plate 3, laser ranging instrument system 7 is fixed in baffle plate 10, adopt 502 glue that multi-layer gasket system 5 orlop materials are bonded on the stiff baseplate 4, place other multi-layer gasket system 5 materials successively, the load plate 6 of selecting angle of taper to equate with the slope slope angle, adopt 502 glue with the material bonding of load plate 6 with 5 the superiors of multi-layer gasket system, open laser test system 7, increase counterweight 8 one by one, test load plate 6 displacements simultaneously, produce slippage along multi-layer gasket system 5 certain weak interface until load plate 6.In loading procedure, read the reading of laser test system 7, can obtain the relation between displacement and the load.Adjust slope slope angle adjuster bar 2 and form the slope of another different slope angles, same multi-layer gasket system 5 is installed can be tested easily next time, finally can obtain these multi-layer gasket system 5 inside friction factor at weak interface and the relation between the load.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (3)
1. a multi-layer gasket system loads the slope test unit step by step, it is characterized in that: comprise rigid base (1), gradient governor motion, stiff baseplate (4), multi-layer gasket system (5), load plate (6), laser range finder (7), counterweight (8), stabilizer bar (9), fixed head (10) and baffle plate (3); At rigid base (1) one end upper surface welding baffle plate (3), stiff baseplate (4) one ends withstand on the baffle plate (3), stiff baseplate (4) other end lower surface is placed on the gradient governor motion that is installed on rigid base (1) other end, stiff baseplate (4) other end upper surface welding fixed head (10), at stiff baseplate (4) upper surface multi-layer gasket system (5) is set, multi-layer gasket (5) upper strata is provided with a load plate (6) with cone angle, stabilizer bar (9) is arranged on the load plate (6), be with the counterweight (8) of Different Weight on the stabilizer bar (9), (5) lower floor of multi-layer gasket system and stiff baseplate (4) upper surface bonding, multi-layer gasket system (5) upper strata and load plate (6) lower surface bonding; Be installed in laser range finder (7) on the fixed head (10) towards a side of load plate (6), laser range finder (7) is connected with readout instrument.
2. a kind of multi-layer gasket according to claim 1 system loads the slope test unit step by step, and it is characterized in that: described gradient governor motion is that one group two the slope slope angle adjuster bars (2) that can regulate slope angle build up.
3. a kind of multi-layer gasket according to claim 1 system loads the slope test unit step by step, it is characterized in that: the cone angle of described load plate (6) is according to the setting of experiment needs, and change a load plate (6) with different oblique angles, load plate (6) angle of taper equates with the slope slope angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010514149 CN102023129A (en) | 2010-10-19 | 2010-10-19 | Tester of gradually loading slopes for multi-layer liner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010514149 CN102023129A (en) | 2010-10-19 | 2010-10-19 | Tester of gradually loading slopes for multi-layer liner system |
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| Publication Number | Publication Date |
|---|---|
| CN102023129A true CN102023129A (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010514149 Pending CN102023129A (en) | 2010-10-19 | 2010-10-19 | Tester of gradually loading slopes for multi-layer liner system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807746A (en) * | 2015-04-24 | 2015-07-29 | 中国矿业大学(北京) | Angle-adjustable side slope testing bed |
| CN107132125A (en) * | 2017-05-19 | 2017-09-05 | 铜陵长江金刚石工具有限责任公司 | A kind of slope pavement load test instrument |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900739A (en) * | 2006-06-29 | 2007-01-24 | 梁前超 | High accuracy laser folding angle measuring method and system |
| CN201828504U (en) * | 2010-10-19 | 2011-05-11 | 浙江大学 | Gradual loading slope test device used for multilayer liner system |
-
2010
- 2010-10-19 CN CN 201010514149 patent/CN102023129A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900739A (en) * | 2006-06-29 | 2007-01-24 | 梁前超 | High accuracy laser folding angle measuring method and system |
| CN201828504U (en) * | 2010-10-19 | 2011-05-11 | 浙江大学 | Gradual loading slope test device used for multilayer liner system |
Non-Patent Citations (1)
| Title |
|---|
| 《中国博士学位论文全文数据库》 20090915 陈伟岸 复合衬垫系统剪力传递、强度特性及安全控制 70-73 1-3 , 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807746A (en) * | 2015-04-24 | 2015-07-29 | 中国矿业大学(北京) | Angle-adjustable side slope testing bed |
| CN107132125A (en) * | 2017-05-19 | 2017-09-05 | 铜陵长江金刚石工具有限责任公司 | A kind of slope pavement load test instrument |
| CN107132125B (en) * | 2017-05-19 | 2024-04-19 | 铜陵长江金刚石工具股份有限公司 | Slope road surface load tester |
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Application publication date: 20110420 |