CN108037007A - A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing - Google Patents
A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing Download PDFInfo
- Publication number
- CN108037007A CN108037007A CN201711417221.9A CN201711417221A CN108037007A CN 108037007 A CN108037007 A CN 108037007A CN 201711417221 A CN201711417221 A CN 201711417221A CN 108037007 A CN108037007 A CN 108037007A
- Authority
- CN
- China
- Prior art keywords
- constraining rod
- geosynthetics
- bottom plate
- fixed
- grasping teeth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to Geotechnical Engineering field, and in particular to a kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing.It is made of bottom plate, grasping teeth, constraining rod, bottom plate contrate, constraining rod contrate, constraining rod stent, control screw, fixing nut, constraining rod support fixed screw, limiter and test geosynthetics.Backplate surface has the grasping teeth of dense arrangement with side, realizes and the uniform of geosynthetics sample in shear history is fixed.Constraining rod is connected by constraining rod stent with bottom plate, and the control screw on constraining rod stent can realize the control to constraining rod position, so that geosynthetics sample be fixed in grasping teeth plate end.Present invention can assure that geosynthetics interface is quiet, micro-slip displacement does not occur for interface between dynamic shear test process in which materials and shear box, so that sliding surface is only present on the test interface drafted, the test for geosynthetics interface shear strength under complex working condition is of great significance.
Description
Technical field
The invention belongs to Geotechnical Engineering field, and in particular to a kind of material for the experiment of geosynthetics interface shearing
Expect grasping teeth board fixer.
Background technology
Geosynthetics is with artificial synthesized polymer（Such as plastics, chemical fibre, synthetic rubber）For the industry of raw material
Manufactured goods, China《Technical code for application of geosynthetics GB50290-98》Geosynthetics is divided into geotextile, soil
The type such as geosynthetics, geotechnological special material and earthwork composite material, geonet, glass fiber net, geotechnique's pad.Since geotechnique synthesizes
Material barrier performance is preferable, it is widely used in being used as pollutant isolation barrier in the earthen structures such as refuse landfill.So
And the shear strength at geosynthetics interface is generally relatively low, in refuse landfill bottom backing layer, multilayer earth working material
Using weak boundary is formd, weak boundary perforation can become potential sliding surface, for the monolithic stability of earthen structure
Unfavorable, its detrimental effect can be further magnified under the extreme operating conditions such as earthquake.Quiet, the dynamic shear at geosynthetics interface
Intensity plays a key effect for the Stability Design of structure, and is mainly distinguished at present using direct shearing method and circulation shear method
Test the static(al) and dynamic shear intensity at geosynthetics interface.The geosynthetics of test will usually be intended in test process
Both ends and the end of shear box are fixed, and two kinds of materials can pass through stress or displacement after the fixation of upper and lower shear box
Control, carries out that geosynthetics interface is quiet, the test of dynamic shear intensity is tried using the pattern of unidirectional staight scissors or circulation shear
Test.In the process, since geosynthetics only end is fixed with shear box, when between geosynthetics and shear box
Shear strength less than test geosynthetics between interface shear strength when, can occur to slide relatively between material and shear box
It is dynamic, and then because the uneven friction of upper and lower surface, the geosynthetics inside of test will produce local stretching strain, greatly shadow
Ring test result.Therefore, there is an urgent need for develop effectively avoid that consolidating for relative displacement occurs between geosynthetics and shear box
Determine device.
The content of the invention
It is an object of the invention to provide a kind of material grasping teeth plate for the experiment of geosynthetics interface shearing to fix
Device.
A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing proposed by the present invention, by grabbing
Tooth plate system and constrained system two parts composition, wherein：
Grasping teeth plate system is made of bottom plate 1, grasping teeth 2 and bottom plate contrate 4, and bottom plate 1 is made of stainless steel material, and grasping teeth 2 is by height
Spend the miniature stainless steel-tooth that consistent inclination angle is 45 ° to form, grasping teeth 2 is uniformly distributed in 1 surface of bottom plate, is used for realization shear surface
The uniform of upper geosynthetics sample is fixed；The miniature stainless steel-tooth at 45 ° of the inclination angle of the use dense arrangement of bottom plate contrate 4, two
A bottom plate contrate 4 is symmetrically distributed in 1 both sides of bottom plate, and the geosynthetics sample for end is fixed；Geotechnique's conjunction of test
It is close into material sample 11 in grasping teeth 2, experiment end is fixed at the bottom plate contrate 4 positioned at both sides；
Constrained system is by constraining rod 3, constraining rod contrate 5, constraining rod stent 6, control screw 7, fixing nut 8, constraining rod stent
Fixed screw 9 and limiter 10 form, and constraining rod 3 uses " L-shaped " stainless steel, and 1 both sides of bottom plate are symmetrically distributed with constraining rod 3,
3 both ends of constraining rod are individually fixed on constraining rod stent 6, the fixation for geosynthetics both ends；Constraining rod contrate 5 uses
The stainless steel-tooth at 45 ° of the inclination angle of dense arrangement, is uniformly distributed in the inner side of constraining rod 3, distribution situation is with bottom plate contrate 4 in staggeredly
Shape, the fixation of geosynthetics sample end is realized with bottom plate contrate 4 jointly；Constraining rod stent 6 is " U-shaped " stainless steel,
Two groups of constraining rod stents 6 are symmetrically fixed in 1 another both side ends of bottom plate by constraining rod support fixed screw 9, pass through constraining rod
Constraining rod stent 6 is fixed on bottom plate 1 by screwing for support fixed screw 9, and 3 both ends of constraining rod are constrained with corresponding two respectively
Bar stent 6 is connected, and constraining rod stent 6 primarily serves the effect of fixed constraint bar 3；Screw 7 is controlled to use the prefabricated spiral shell of stainless steel
Silk, control screw 7 stay in the outside of constraining rod stent 6, control through default hole on constraining rod stent 6, the nut of control screw 7
The bottom of screw 7 processed welds together with limiter 10, can apply moment of torsion control screw spinning in and out, to realize constraining rod 3
Advance and retreat, limiter 10 is installed on the miniature bayonet on constraining rod stent 6, and its one end is fixed with control screw 7, the other end with
The bottom of " L-shaped " constraining rod 3 is fixed, and limiter 10 ensure that effective connection of control screw 7 and constraining rod 3.
In the present invention, fixing nut 8 is consistent with control 7 model of screw.
In the present invention, each constraining rod stent passes through 29 connecting bottom boards 1 of constraining rod support fixed screw.
In the present invention, grasping teeth plate system and constrained system are prefabricated components, and two prefabricated components are assembled by screw,
Detachably safeguarded after the test.
The course of work of the present invention：
Control screw 7 is screwed out, control constraints bar 3 is moved to away from the direction of bottom plate 1, in bottom plate contrate 4 and constraining rod contrate 5
Between reserve enough safe distances.The geosynthetics sample that the plan cut is tested is evenly laid out in 1 surface of bottom plate
Grasping teeth 2 on, the gap between bottom plate contrate 4 and constraining rod contrate 5 is stretched at sample both ends.With rubber hammer to being laid in bottom plate table
The geosynthetics sample in face carries out hitting reality, it is ensured that material comes into full contact with grasping teeth 2, and does not have plication region.Screw control
Screw 7 so that constraining rod 3 comes into full contact with the geosynthetics sample 11 tested, and is realized to sample both ends effective fixed.
Then whole material grasping teeth panel assembly is placed in the shear box of experiment, the grasping teeth panel assembly wherein in down cut box only needs
It is put into shear box and fixes it and relative displacement does not occur between shear box, and is filled for the grasping teeth plate in upper shear box
Put, it is necessary to be fixed by bolt.Grasping teeth panel assembly can apply normal pressure, Ran Houjin after being fixed on experiment shear box
Row geosynthetics interface shearing is tested.Grasping teeth panel assembly is removed from shear box after experiment, unscrews control screw successively
7, after constraining rod 3 is removed, you can remove the geosynthetics sample after experiment, further observed and analyzed.
Concrete condition can participate in Fig. 5 ~ Fig. 8.
Beneficial effects of the present invention：
The great advantage of apparatus of the present invention is to realize that geosynthetics interface is quiet, geotechnique is closed during dynamic shear test
Into the uniform fixed of material sample, possible displacement between geosynthetics and shear box effectively prevent, it is ensured that sheared
Geosynthetics sample will not produce larger internal stress because of the uneven friction of upper and lower surface in journey, be to geotechnique at present
The one of synthetic material interface shearing measuring technology is big to improve.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the top view of the present invention.
Fig. 4 is the side view of the present invention.
Fig. 5 is that geosynthetics of the present invention shears the schematic diagram after sample installation.
Fig. 6 is that geosynthetics of the present invention shears the front view after sample installation.
Fig. 7 is that shear box geosynthetics shears the schematic diagram after sample is respectively mounted to the present invention up and down.
Fig. 8 is that shear box geosynthetics shears the front view after sample is respectively mounted to the present invention up and down.
Figure label：1 is bottom plate, and 2 be grasping teeth, and 3 be constraining rod, and 4 be bottom plate contrate, and 5 be constraining rod contrate, and 6 be constraint
Bar stent, 7 screws in order to control, 8 be fixing nut, and 9 be constraining rod support fixed screw, and 10 be limiter, and 11 be test geotechnique
Synthetic material.
Embodiment
The invention is further illustrated by the following examples.
Embodiment 1：
The present embodiment is the quiet shearing test material grasping teeth board fixer of geosynthetics bentonite liner and coarse-surface geomembrane interface
Setting.As shown in Fig. 1 ~ Fig. 8, it is made of grasping teeth plate system and constrained system two parts.Wherein：
Grasping teeth plate system is made of bottom plate 1, grasping teeth 2 and 4 three parts of bottom plate contrate, is the main part entirely invented.Bottom plate 1 is
The foundation structure of the present invention, because the geosynthetics of test is often on active service under saturation state, shearing test often needs to
Carry out under aqueous conditions, therefore be anti-structure corrosion, bottom plate is fixed on shear box by stainless steel material prefabricated completion in shear history
Above, it is necessary to bear larger shearing, so bottom plate need to be thicker, to keep certain rigidity；Grasping teeth 2 is evenly distributed on 1 table of bottom plate
Face, is made of the miniature stainless steel-tooth that highly consistent inclination angle is 45 °, is used for realization geosynthetics sample on shear surface
It is uniform fixed；Bottom plate contrate 4 is symmetrically distributed in 1 both sides of bottom plate, is the miniature stainless steel-tooth at 45 ° of the inclination angle of dense arrangement, uses
Geosynthetics sample in end is fixed；The geosynthetics sample 11 of test is close in grasping teeth 2, tests end
Fixed at the bottom plate contrate 4 of both sides.
Constrained system is by constraining rod 3, constraining rod contrate 5, constraining rod stent 6, control screw 7, fixing nut 8, constraining rod
Support fixed screw 9 and limiter 10 form, and geosynthetics is fixed in main end of plaing a part of；Constraining rod 3 for " L-shaped " no
Become rusty steel pole, and both ends are fixed on constraining rod stent 6, and bottom plate 1 each side has 1 constraining rod 3, for geosynthetics two
The fixation at end；Constraining rod contrate 5 is similarly the stainless steel-tooth at 45 ° of the inclination angle of dense arrangement, is evenly distributed on the inner side of constraining rod 3,
Distribution situation and bottom plate contrate 4 are cross-shaped, realize the fixation of geosynthetics sample end jointly with bottom plate contrate 4；About
Beam bar stent 6 is prefabricated " U-shaped " stainless steel, and its one end is fixed on bottom plate 1 by constraining rod support fixed screw 9, another
End is connected with constraining rod 3, primarily serves the effect of fixed constraint bar 3；Control screw 7 is the prefabricated screw of stainless steel, is constraint
Main accessory structure on bar stent 6, control screw 7 make nut stay in constraining rod through default hole on constraining rod stent 6
The outside of stent 6, and control the bottom of screw 7 and limiter 10 to weld together, thus moment of torsion control screw precession can be applied
Screw out, play the role of control constraints bar position；Fixing nut 8 is consistent with control 7 model of screw, is placed in constraining rod stent 6
The outside of reserved screw hole is to realize the fixation to controlling screw 7；Constraining rod support fixed screw 9 is CARBURIZING FURNACE FOR STAINLESS FASTENER, each
Constraining rod stent corresponds to 2, and whole invention device needs 8 constraining rod support fixed screws 9 altogether, is fixed by constraining rod stent
Constraining rod stent 6 can be fixed on bottom plate 1 by screwing for screw 9 so that whole device becomes an entirety；Limiter 10 is
Special miniature bayonet apparatus on constraining rod stent 6, its one end are fixed with control screw 7, and the other end is constrained with " L-shaped "
The bottom of bar 3 is fixed, and limiter 10 ensure that effective connection of control screw 7 and constraining rod 3.
Bottom plate 1 is length 1000mm, width 800mm, the stainless steel plate of high 100mm, is the main part of device.Grasping teeth 2,
Bottom plate contrate 4 is formed with constraining rod contrate 5 by the stainless steel-tooth dense arrangement at height 2mm, 45 ° of inclination angle, is the fixing device
Main functional components.Constraining rod 3 be length 800mm " L-shaped " prefabricated stainless steel, its thickness 10mm, " L-shaped " two edge lengths
It is 40mm.Constraining rod stent 6 is special " U-shaped " stainless steel of length 240mm, has reserved screw hole thereon to realize assembling
Connection.By limiter 10, a special bayonet apparatus, connection is realized by constraining rod 3 and constraining rod stent 6.It is and spacing
Device 10 and control screw 7 connect, and control screw 7 is through the reserving hole on constraining rod stent 6, by the precession for controlling screw 7
Back-out can be with the position of control constraints bar 3.
Above-mentioned grasping teeth board fixer is used for geosynthetics bentonite liner（Geosynthetic clay liner,
GCL）Fixed with the material of the quiet shearing test in coarse-surface geomembrane interface, its course of work is as follows：It is 1200mm × 800mm by size
Geosynthetics bentonite liner sample 11 be attached in grasping teeth 2, sample both ends stretch into bottom plate contrate 4 and constraining rod contrate 5 it
Between gap.The geosynthetics sample of backplate surface is carried out hitting reality with rubber hammer after the completion of tiling, it is ensured that material is with grabbing
Tooth 2 comes into full contact with, and does not have plication region.Then control screw 7 is screwed so that constraining rod 3 comes into full contact with bottom plate 1, realizes
To being completely fixed for geosynthetics bentonite liner sample 11.Grasping teeth plate equipped with geosynthetics bentonite liner sample has assembled
The down cut box of staight scissors instrument is put into after, the grasping teeth plate equipped with coarse-surface geomembrane sample is completed further in accordance with above-mentioned steps and fixes dress
The assembling put, is then attached to the upper shear box of direct shear apparatus, you can starts shearing test.Fixation can be removed after the completion of experiment successively
In the grasping teeth panel assembly of upper and lower shear box, control screw 7 is unscrewed one by one, removes geosynthetics bentonite liner sample and matte soil
Work film sample, observes sample and is studied.Assembling process can be smoothly real with reference to Fig. 5 ~ Fig. 8, those skilled in the art
Apply.
Claims (3)
- A kind of 1. material grasping teeth board fixer for the experiment of geosynthetics interface shearing, by grasping teeth plate system and constraint System two parts form, it is characterised in that：Grasping teeth plate system is made of bottom plate (1), grasping teeth (2) and bottom plate contrate (4), and bottom plate (1) is made of stainless steel material, is grabbed Tooth (2) is made of the miniature stainless steel-tooth that highly consistent inclination angle is (4) (5) °, and grasping teeth (2) is uniformly distributed in bottom plate (1) table Face, is used for realization the uniform of geosynthetics sample on shear surface and fixes；Bottom plate contrate (4) uses the inclination angle of dense arrangement 45 ° of miniature stainless steel-tooth, two bottom plate contrates (4) are symmetrically distributed in bottom plate (1) both sides, the geosynthetics for end Sample is fixed；The geosynthetics sample (11) of test is close in grasping teeth (2), and experiment end is in the bottom plate positioned at both sides Contrate (4) place is fixed；Constrained system by constraining rod (3), constraining rod contrate (5), constraining rod stent (6), control screw (7), fixing nut (8), Constraining rod support fixed screw (9) and limiter (1) 0 form, and constraining rod (3) uses " L-shaped " stainless steel, bottom plate (1) both sides Constraining rod (3) is symmetrically distributed with, constraining rod (3) both ends are individually fixed on constraining rod stent (6), for geosynthetics two The fixation at end；Constraining rod contrate (5) is uniformly distributed in constraining rod (3) using the stainless steel-tooth at 45 ° of the inclination angle of dense arrangement Side, distribution situation and bottom plate contrate (4) are cross-shaped, and geosynthetics sample end is realized jointly with bottom plate contrate (4) It is fixed；Constraining rod stent (6) is " U-shaped " stainless steel, and two groups of constraining rod stents (6) pass through constraining rod support fixed screw (9) It is symmetrically fixed in the another both side ends of bottom plate (1), passes through screwing constraining rod stent (6) for constraining rod support fixed screw (9) It is fixed on bottom plate (1), constraining rod (3) both ends are connected with corresponding two constraining rod stents (6) respectively, constraining rod stent (6) effect of fixed constraint bar (3) is primarily served；Control screw (7) uses the prefabricated screw of stainless steel, and control screw (7) passes through Default hole on constraining rod stent (6), the nut of control screw (7) are stayed on the outside of constraining rod stent (6), control screw (7) Bottom weld together with limiter (1) 0, moment of torsion control screw spinning in and out can be applied, with realize constraining rod 3 into Move back, limiter (10) is installed on the miniature bayonet on constraining rod stent (6), and its one end is fixed with control screw (7), the other end Fixed with the bottom of " L-shaped " constraining rod (3), limiter (10) ensure that effective connection of control screw (7) and constraining rod (3).
- 2. the material grasping teeth board fixer according to claim 1 for the experiment of geosynthetics interface shearing, its It is characterized in that：Fixing nut (8) is consistent with control screw (7) model.
- 3. the material grasping teeth board fixer according to claim 1 for the experiment of geosynthetics interface shearing, its It is characterized in that：Each constraining rod stent passes through 2 constraining rod support fixed screw (9) connecting bottom boards (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417221.9A CN108037007A (en) | 2017-12-25 | 2017-12-25 | A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417221.9A CN108037007A (en) | 2017-12-25 | 2017-12-25 | A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108037007A true CN108037007A (en) | 2018-05-15 |
Family
ID=62100855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711417221.9A Pending CN108037007A (en) | 2017-12-25 | 2017-12-25 | A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108037007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019223017A1 (en) * | 2018-05-23 | 2019-11-28 | 同济大学 | Large-size multifunctional interface power shear tester and test method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279770Y (en) * | 1997-03-17 | 1998-04-29 | 刘西厚 | U shaped clamp fixation device |
| US6224288B1 (en) * | 1998-12-14 | 2001-05-01 | The Aerospace Corporation | Corrugated slider washer bearing |
| ES2302662A1 (en) * | 2008-02-21 | 2008-07-16 | Cespa Gestion De Residuos, S.A. | Device for holding geosynthetics in direct cutting trials, has rigid support and plate joined by attachment unit, where rigid support includes jaw in both hands for tying geosynthetic material and plate includes multiple internal holes |
| CN202582990U (en) * | 2012-04-03 | 2012-12-05 | 泰安现代塑料有限公司 | Special extensible jig for single-direction geogrid |
| CN204346411U (en) * | 2014-12-08 | 2015-05-20 | 国家烟草质量监督检验中心 | Cigarette packaging film multipoint clamping load device and pick-up unit |
| CN204789132U (en) * | 2015-06-01 | 2015-11-18 | 中国人民解放军第五七二一工厂 | Textile material tensile test special fixture |
| CN204831909U (en) * | 2015-08-14 | 2015-12-02 | 河海大学 | A geonet clamping device for staight scissors experiment |
| CN204988869U (en) * | 2015-09-08 | 2016-01-20 | 中交四航工程研究院有限公司 | Geosynthetic material punctures powerful experimental special fixture |
| CN205192850U (en) * | 2015-12-10 | 2016-04-27 | 嘉兴市产品质量检验检测院 | Powerful quick -witted stretching device of fabric is with super wide anchor clamps |
| CN106053253A (en) * | 2016-05-19 | 2016-10-26 | 同济大学 | Soil grasper measuring device for measuring real displacement of soil sheared by large size soil engineering direct shear apparatus |
| CN205786081U (en) * | 2016-07-07 | 2016-12-07 | 南通筑升土木工程科技有限责任公司 | A kind of Novel stack laminar shear model box limitting casing and there is the model casing of this frame |
-
2017
- 2017-12-25 CN CN201711417221.9A patent/CN108037007A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279770Y (en) * | 1997-03-17 | 1998-04-29 | 刘西厚 | U shaped clamp fixation device |
| US6224288B1 (en) * | 1998-12-14 | 2001-05-01 | The Aerospace Corporation | Corrugated slider washer bearing |
| ES2302662A1 (en) * | 2008-02-21 | 2008-07-16 | Cespa Gestion De Residuos, S.A. | Device for holding geosynthetics in direct cutting trials, has rigid support and plate joined by attachment unit, where rigid support includes jaw in both hands for tying geosynthetic material and plate includes multiple internal holes |
| CN202582990U (en) * | 2012-04-03 | 2012-12-05 | 泰安现代塑料有限公司 | Special extensible jig for single-direction geogrid |
| CN204346411U (en) * | 2014-12-08 | 2015-05-20 | 国家烟草质量监督检验中心 | Cigarette packaging film multipoint clamping load device and pick-up unit |
| CN204789132U (en) * | 2015-06-01 | 2015-11-18 | 中国人民解放军第五七二一工厂 | Textile material tensile test special fixture |
| CN204831909U (en) * | 2015-08-14 | 2015-12-02 | 河海大学 | A geonet clamping device for staight scissors experiment |
| CN204988869U (en) * | 2015-09-08 | 2016-01-20 | 中交四航工程研究院有限公司 | Geosynthetic material punctures powerful experimental special fixture |
| CN205192850U (en) * | 2015-12-10 | 2016-04-27 | 嘉兴市产品质量检验检测院 | Powerful quick -witted stretching device of fabric is with super wide anchor clamps |
| CN106053253A (en) * | 2016-05-19 | 2016-10-26 | 同济大学 | Soil grasper measuring device for measuring real displacement of soil sheared by large size soil engineering direct shear apparatus |
| CN205786081U (en) * | 2016-07-07 | 2016-12-07 | 南通筑升土木工程科技有限责任公司 | A kind of Novel stack laminar shear model box limitting casing and there is the model casing of this frame |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019223017A1 (en) * | 2018-05-23 | 2019-11-28 | 同济大学 | Large-size multifunctional interface power shear tester and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Foraboschi | Effectiveness of novel methods to increase the FRP-masonry bond capacity | |
| Almeida et al. | Assessment of overlay masonry strengthening system under in-plane monotonic and cyclic loading using the diagonal tensile test | |
| Williams et al. | Compression after impact assessment of self-healing CFRP | |
| Wu et al. | Experimental study on the fatigue behavior of steel beams strengthened with different fiber-reinforced composite plates | |
| Fagone et al. | Strength evaluation of jute fabric for the reinforcement of rammed earth structures | |
| Cengiz et al. | On the shear failure mode of granular column embedded unit cells subjected to static and cyclic shear loads | |
| DE112019002113T5 (en) | Structure for lowering, reinforcing, lifting and leveling the pile foundation platform structure and construction methods therefor | |
| CN105887702A (en) | Method for reinforcing concrete beam by prestressed carbon fiber plate and steel-concrete | |
| Fakharian | Three-dimensional monotonic and cyclic behaviour of sand-steel interfaces: Testing and modelling. | |
| Martin et al. | Performance of mechanically fastened FRP strengthened concrete beams in flexure | |
| CN108643602A (en) | A kind of outsourcing anchor steel ruggedized construction suitable for concrete beam and column node | |
| CN109972538A (en) | A kind of steel plate is interior to fill filler material composite reinforcement concrete bridge structure and construction technology | |
| CN101871267B (en) | Composite strengthening technology of aged reinforced concrete beam | |
| CN109989405A (en) | Base pit stand construction under boulder site condition | |
| Sun et al. | Rapid repair techniques for severely earthquake-damaged circular bridge piers with flexural failure mode | |
| CN108037007A (en) | A kind of material grasping teeth board fixer for the experiment of geosynthetics interface shearing | |
| Fox et al. | Large dynamic direct shear machine for geosynthetic clay liners | |
| CN107620262A (en) | A kind of pot bearing for retaining whole anchor bolts changes construction method | |
| Sun et al. | Research on fracture behavior and reinforcement mechanism of fiber-reinforced locally layered backfill: Experiments and models | |
| Kanchidurai et al. | Strength characteristic of novel mesh embedment technique for new brick construction with least expensive material | |
| CN108507921A (en) | Geosynthetics bentonite liner high pressure aquation consolidation keeps case apparatus | |
| CN206034437U (en) | Gasket type secondary tensioning prestressed anchorage device | |
| CN105971302A (en) | Prestressed concrete hollow floor slab reinforcing structure and construction method thereof | |
| Kim et al. | Multi-scale assessment of geotextile-geomembrane interaction | |
| Gencoglu et al. | Static and impact behavior of fabric reinforced cement composites in flexure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180515 |