CN106370589A - Device and method for testing shear strength of cementation face between early-age sprayed concrete and rock - Google Patents
Device and method for testing shear strength of cementation face between early-age sprayed concrete and rock Download PDFInfo
- Publication number
- CN106370589A CN106370589A CN201610752287.2A CN201610752287A CN106370589A CN 106370589 A CN106370589 A CN 106370589A CN 201610752287 A CN201610752287 A CN 201610752287A CN 106370589 A CN106370589 A CN 106370589A
- Authority
- CN
- China
- Prior art keywords
- concrete
- rock
- backing plate
- annulus
- test
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a device and method for testing shear strength of a cementation face between early-age sprayed concrete and rock. The device comprises a detachably-connected base, a cover plate and backing plates which are located between the base and the cover plate; a concrete spraying space which is of vertical run-through is formed in the base; a columnar space, which is used for accommodating a rock test piece and is of vertical run-through, is formed in the cover plate, and a circular ring which is used for fixing the rock test piece is nested in the columnar space; a cementation space which communicates with the concrete spraying space and the internal cavity of the circular ring is formed between the left and right backing plates. During testing, the rock test piece is placed in the circular ring, the bottom face of the rock test piece exceeds that of the circular ring, the rock test piece is fixed firmly, then, the cover plate, the backing plates and the base are assembled, concrete is sprayed, then, curing is carried out for certain time, the cover plate and the backing plates are removed sequentially so as to form a global test piece, and testing is carried out on a geotechnical direct-shear tester. According to the device and the method, the test principle is accurate and reliable, the test method is simple and direct, the operation is simple and convenient, and tested data are accurate and small in error, so that the reliability is very high.
Description
Technical field
The present invention relates to rock mechanics, Geotechnical Engineering technical field of measurement and test in Tunnel Engineering, specially a kind of test early age
The device of phase spray concrete and rock cement plane shear strength and method of testing.
Background technology
In Tunnel Engineering field, the shear strength feature between research gunite concrete and tunnel surrounding is for assessment spray
The bearing capacity penetrating concrete supporting structure has great importance.Tunnel concrete spraying support and tunnel surrounding cement plane
Failure by shear be a kind of common failure mode.In existing country and department's specification, usual tunnel surrounding itself
The shearing of shear strength and gunite concrete itself and comprcssive strength, with regard to not cutting between tunnel surrounding and gunite concrete
Cut the specification provision of characteristic, also there is no the test device to cement plane shear property between gunite concrete and tunnel surrounding for the specification
And implementation is illustrated or specifies.Therefore, under existing technical conditions, with regard between gunite concrete and tunnel surrounding
In the law of development in time of cement plane shear strength feature, not yet develop a kind of effective test device and enforcement
Method.
Abroad some scholars were once had to carry out the examination of cement plane shear strength feature between gunite concrete and tunnel surrounding
Test, the type test is based primarily upon direct shear test machine for rock, using live core boring sampling method obtain comprising gunite concrete with
The test specimen of tunnel surrounding, places it in the shear property of test pneumatically placed concrete and basement rock cement plane on direct shear test machine for rock,
But the method produces disturbance to the performance of cement plane during core boring sampling, and test result discrete type is big.Additionally, such method
The shear strength feature between the gunite concrete of early age and tunnel surrounding can not be tested, reason is that the injection of early age mixes
Solidifying soil low intensity, the sampling of boring property leads to gunite concrete considerable damage it is difficult to obtain qualified sample.
The units such as Sichuan University, Hohai University proposed the simple dress that some cooperation pressure testing machines carry out direct shear test
Put, but be mainly both for rock mass discontinuity and carry out shearing test, and such device construction is complicated, measurement error is greatly it is impossible to enter
Row rock and the shearing test of gunite concrete cement plane.Tongji University, Southwest Jiaotong University are it is proposed that cross concrete and basement rock
The staight scissors test device of Shear Test on Cemented Surface intensity, but it is both for the shearing of cement plane between the concrete of complete age and rock
Test, can not be same it is impossible to be used for carrying out testing the shear strength feature of cement plane between early age gunite concrete and rock
When test out coefficient of friction and cohesiveness between early age gunite concrete and rock.
In view of the shear strength feature of cement plane is propped up to assessment tunnel initial-stage between indoor gunite concrete and tunnel surrounding
The bearer properties of shield have great importance, the particularly degree of roughness of cement plane rock mass, basement rock type, gunite concrete age
Phase etc. affects larger, existing testing regulationss and country or department's specification to such test still to the shear strength feature of cement plane
No clear stipulaties, it is therefore proposed that between gunite concrete and tunnel surrounding the test device of cement plane shear strength feature and its
Implementation method.
Content of the invention
For these reasons it is an object of the invention to provide a kind of simple early age gunite concrete and tunnel
The test method of cement plane shear strength feature and related device between country rock, the shear strength ginseng of test two media cement plane
Number, including coefficient of friction and cohesiveness, solves the shearing of the early age gunite concrete and basement rock cement plane that cannot realize at present
Strength characteristic test problem.Technical scheme is as follows:
A kind of test early age sprays the device of concrete and rock cement plane shear strength, including the pedestal being detachably connected, cover plate and
Backing plate positioned there between；It is provided with the concrete ejection space of up/down perforation in pedestal；It is provided with for accommodating rock in cover plate
Test specimen, and the cylindrical space of up/down perforation, are arranged with the annulus for fixing rock sample in cylindrical space；Backing plate includes left pad
Plate and right backing plate, left backing plate is provided with left semicircle groove, and right backing plate is provided with right semi-circle groove, and left semicircle groove and right semi-circle groove are formed even
Logical concrete ejection space and the cementing space of annulus inner chamber.
Further, the interior edge of described annulus top and bottom is equipped with injecting glue groove.
Further, in described cylindrical space top, edge is provided with the flange collar being snapped in edge on annulus.
Further, described post concrete ejection space includes the prism space of bottom and the cylindrical space on top.
Further, described pedestal, backing plate, annulus and cover plate are all made using lucite.
Further, described pedestal, cover plate and backing plate are bolted.
A kind of method of testing using above-mentioned test device, comprises the following steps:
Select the column rock that external diameter is mated with cementing space internal diameter as rock sample；
Rock sample is placed in annulus so as to bottom surface exceeds annulus bottom surface, and the height exceeding is less than the thickness of backing plate, then
Fixation；
Cover plate is set in outside annulus, and respectively assembled left backing plate and right backing plate, then installation pedestal, finally by cover plate, backing plate and
Pedestal fixation；
Using concrete sprayer to concrete ejection space gunite concrete, remove unnecessary concrete, make lower surface smooth；
After maintenance certain time, remove cover plate and backing plate successively, form integrated testability test specimen；
Integrated testability test specimen rock sample is placed on geotechnological direct shear test machine upwards, first after-applied vertical load and horizontal lotus
Carry, and record test data.
Further, rock sample and annulus are fixed by irrigating PUR to the injecting glue groove on annulus.
Further, described vertical load is applied to rock sample upper surface, and horizontal loading is applied to annulus left surface.
The invention has the beneficial effects as follows: the present invention passes through and geotechnological direct shear test machine cooperating is it is achieved that test early age
The purpose of cement plane shear strength feature between phase gunite concrete and rock, by the backing plate in this device, reserved cement plane
Lateral space, normal direction and tangential loading are applied respectively on cement plane by geotechnological direct shear test machine it is achieved that failure by shear
Occur along cement plane；By processing normal direction and tangential loading in soil test machine, early age injection can be accurately calculated mixed
The shear strength parameters of cement plane between solidifying soil and rock；Accurately and reliably, method of testing is simply direct for test philosophy, simple to operate
Convenient, accurately, error is little, has very high reliability for surveyed data.
Brief description
Fig. 1 is the structure decomposition figure of test device of the present invention.
Fig. 2 is the perspective view one of test device of the present invention.
Fig. 3 is the perspective view two of test device of the present invention.
Fig. 4 is the partial sectional view of test device of the present invention.
Fig. 5 is structure cross-sectional schematic between rock sample and annulus and backing plate.
Fig. 6 is structure cross-sectional schematic between rock sample and annulus, backing plate and cover plate.
Fig. 7 is structure cross-sectional schematic between rock sample and annulus, backing plate, cover plate and pedestal.
Fig. 8 is structure cross-sectional schematic between rock sample and annulus, concrete and pedestal.
Fig. 9 is schematic diagram when being tested by testing machine between device provided by the present invention cooperation geotechnique.
In figure: 1- pedestal；101- rock sample；The left backing plate of 2-；201- left semicircle groove；The right backing plate of 3-；301- right semi-circle groove；
4- cover plate；401- cylindrical space；5- annulus；501- injecting glue groove；6- rock sample；7- gunite concrete；8- fastening bolt holes.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.As shown in figure 1, a kind of test age morning
Spray concrete and the device of rock cement plane shear strength, including the pedestal 1 being detachably connected, cover plate 4 and pad positioned there between
Plate；It is provided with the concrete ejection space 101 of up/down perforation in pedestal 1；It is provided with for accommodating rock sample 6 in cover plate 4, and up and down
The cylindrical space 401 of insertion, is arranged with the annulus 5 for fixing rock sample 6 in cylindrical space 401；Backing plate includes left backing plate 2
With right backing plate 3, left backing plate 2 is provided with left semicircle groove 201, and right backing plate 3 is provided with right semi-circle groove 301, left semicircle groove 201 and right half
Circular groove 301 forms the cementing space of connection concrete ejection space 101 and annulus 5 inner chamber.Overall structure is as shown in Figures 2 and 3.
The a size of long 120mm of pedestal 1 of the present embodiment, wide 100mm, high 27mm, under post concrete ejection space 101 includes
Portion a size of 60mm × 60mm × 24mm prism space and upper diameter are the cylindrical space of 49mm, specifically as shown in Figure 7.Pedestal
1 right side arranges concave hole as shown in Figure 2, its a size of 25mm × 40mm.Pedestal 1 surrounding arranges fastening bolt holes 8, and it is a size of
The circular hole of diameter 10mm.
Originally it is the cover plate 4 a size of 90mm × 100mm × 21mm of embodiment, at heart 5mm to the left, rock is installed in setting wherein
Stone test 6 and the cylindrical space 401 of annulus 5, along being provided with the flange collar being snapped in edge on annulus 5 in cylindrical space 401 top, such as scheme
Shown in 4, this flange collar can be more solid and reliable to the fixation of annulus 5, also can be further ensured that rock sample 6 and gunite concrete exist
Maintenance stage cement plane is from the interference of external force.This cylindrical space 401 middle and lower part body diameter is 61mm, height 19mm, top
Cylindrical space diameter 60mm in figure circle, height 2mm, the symmetrical overlapping of axles of two cylindrical spaces.It is provided with cover plate 4 and pedestal 1
Corresponding fastening bolt holes 8.
The annulus 5 of the present embodiment a size of interior diameter 49mm, overall diameter 61mm, highly for 19mm；Annulus 5 top and bottom
Interior edge be equipped with injecting glue groove 501, as shown in figure 5, internal diameter is 51mm at this, depth is 2mm, for injecting PUR, fixing
Rock sample 6.
The left backing plate 2 of the present embodiment and right backing plate 3 size be respectively 50mm × 100mm × 2mm and 40mm × 100mm ×
2mm, assembly after, between formed cementing space a diameter of 49mm, on backing plate, correspondence position is also provided with fastening bolt holes 8,
Pedestal 1, cover plate 4 and backing plate can be made to be bolted.
The pedestal 1 of the present embodiment, backing plate, annulus 5 and cover plate 4 are all made using lucite.
Method of testing is as follows:
Select the column rock that external diameter is mated with cementing space internal diameter as rock sample 6, such as a size of diameter 49mm is high about
20mm column.
Rock sample 6 is placed in annulus 5 so as to bottom surface exceeds annulus 5 bottom surface, and the height exceeding is less than the thickness of backing plate
Degree, that is, exceed annulus lower surface 1mm-2mm, and it can be made to extend in left backing plate 2 and the cementing space of right backing plate 3 composition, then
Fixation.The present embodiment fixes rock sample 6 and annulus 5 by irrigating PUR to the injecting glue groove 501 on annulus 5.
Then cover plate 4 is set in outside annulus 5, and distinguishes assembled left backing plate 2 and right backing plate 3, each assembly is formed shown in Fig. 6
Spatial relation；Installation pedestal 1 again, finally by individual fixing bolt by cover plate 4, backing plate and pedestal 1 fixation, such as schemes
Shown in 7.
Using concrete sprayer to concrete ejection space 101 gunite concrete, remove unnecessary concrete, make following table
Face is smooth；After maintenance certain time, remove cover plate 4 and backing plate successively, form integrated testability test specimen, as shown in Figure 8.
Illustrate in conjunction with Fig. 9, during test, integrated testability test specimen rock sample 6 is placed on geotechnological direct shear test machine upwards, first
After-applied vertical load and horizontal loading, and vertical load is applied to rock sample 6 upper surface, horizontal loading is applied to annulus 5
Left surface, final test data, analysis test gained vertical load and lateral load data, calculate cement plane cohesiveness and rub
Wipe coefficient, that is, obtain gunite concrete and rock cement plane shear strength.
The test principle of the present embodiment clearly, is implemented simple, and can be realized gunite concrete and the rock of any age
Cement plane shear strength test works, and has higher technological value.
Claims (9)
1. a kind of test age morning sprays the device of concrete and rock cement plane shear strength it is characterised in that including being detachably connected
Pedestal (1), cover plate (4) and backing plate positioned there between；It is provided with the concrete ejection space of up/down perforation in pedestal (1)
(101)；It is provided with cover plate (4) for accommodating rock sample (6), and the cylindrical space (401) of up/down perforation, cylindrical space
(401) it is arranged with the annulus (5) for fixing rock sample (6) in；Backing plate includes left backing plate (2) and right backing plate (3), left backing plate
(2) it is provided with left semicircle groove (201), right backing plate (3) is provided with right semi-circle groove (301), left semicircle groove (201) and right semi-circle groove
(301) form the cementing space of connection concrete ejection space (101) and annulus (5) inner chamber.
2. test according to claim 1 early age spray concrete and rock cement plane shear strength device it is characterised in that
The interior edge of described annulus (5) top and bottom is equipped with injecting glue groove (501).
3. test according to claim 1 early age spray concrete and rock cement plane shear strength device it is characterised in that
In described cylindrical space (401) top, edge is provided with the flange collar being snapped in the upper edge of annulus (5).
4. test according to claim 1 early age spray concrete and rock cement plane shear strength device it is characterised in that
Described post concrete ejection space (101) includes the prism space of bottom and the cylindrical space on top.
5. test according to claim 1 early age spray concrete and rock cement plane shear strength device it is characterised in that
Described pedestal (1), backing plate, annulus (5) and cover plate (4) are all made using lucite.
6. test according to claim 1 early age spray concrete and rock cement plane shear strength device it is characterised in that
Described pedestal (1), cover plate (4) and backing plate are bolted.
7. a kind of early age of the test described in employing claim 1 sprays the test side of concrete and the device of rock cement plane shear strength
Method is it is characterised in that comprise the following steps:
Select the column rock that external diameter is mated with cementing space internal diameter as rock sample (6)；
Rock sample (6) is placed in annulus (5) so as to bottom surface exceeds annulus (5) bottom surface, and the height exceeding is less than backing plate
Thickness, then fixation；
Cover plate (4) is set in annulus (5) outward, and assembled left backing plate (2) and right backing plate (3) respectively, then installation pedestal (1),
Afterwards by cover plate (4), backing plate and pedestal (1) fixation；
Using concrete sprayer to concrete ejection space (101) gunite concrete, remove unnecessary concrete, make lower surface
Smooth；
After maintenance certain time, remove cover plate (4) and backing plate successively, form integrated testability test specimen；
Integrated testability test specimen rock sample (6) is placed on geotechnological direct shear test machine upwards, first after-applied vertical load and level
Load, and record test data.
8. method of testing according to claim 7 is it is characterised in that pass through to injecting glue groove (501) perfusion on annulus (5)
PUR is fixing rock sample (6) and annulus (5).
9. method of testing according to claim 7 is it is characterised in that described vertical load is applied on rock sample (6)
Surface, horizontal loading is applied to annulus (5) left surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752287.2A CN106370589B (en) | 2016-08-29 | 2016-08-29 | The device and test method of test early age spray concrete and rock cement plane shear strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752287.2A CN106370589B (en) | 2016-08-29 | 2016-08-29 | The device and test method of test early age spray concrete and rock cement plane shear strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106370589A true CN106370589A (en) | 2017-02-01 |
| CN106370589B CN106370589B (en) | 2018-10-30 |
Family
ID=57903621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610752287.2A Expired - Fee Related CN106370589B (en) | 2016-08-29 | 2016-08-29 | The device and test method of test early age spray concrete and rock cement plane shear strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106370589B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677596A (en) * | 2017-09-30 | 2018-02-09 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN107727569A (en) * | 2017-09-30 | 2018-02-23 | 华北水利水电大学 | A kind of test method for testing rock and concrete binding interface tensile strength |
| CN108918295A (en) * | 2018-05-16 | 2018-11-30 | 西南科技大学 | A kind of free straight snips system and method for rock joint |
| CN109103624A (en) * | 2018-09-03 | 2018-12-28 | 安庆金辉煌电子科技股份有限公司 | The installation pedestal of a kind of electronic equipment ground terminal |
| CN110823720A (en) * | 2019-11-20 | 2020-02-21 | 清华大学 | Direct shear test method for natural cemented filling rock fracture under high temperature condition |
| CN113188999A (en) * | 2021-04-22 | 2021-07-30 | 河海大学 | Device and method for estimating strength envelope of concrete and rock bonding interface |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3566681A (en) * | 1968-12-20 | 1971-03-02 | Incerc Inst De Cercetari In Co | Method and apparatus for pure shear testing of rocks and other building materials |
| CN101509868A (en) * | 2009-02-18 | 2009-08-19 | 西北农林科技大学 | Method for testing interface shear strength of sample bonded by sealant and bonded substrate |
| CN201765074U (en) * | 2010-09-09 | 2011-03-16 | 中国长江三峡集团公司 | Test device for measuring contract stress state between soil and structural contact surface |
| CN102042937A (en) * | 2009-10-14 | 2011-05-04 | 同济大学 | Site large-scale direct shearing test device of shearing strength of concrete and basement adhesion surface |
| CN102735555A (en) * | 2012-07-02 | 2012-10-17 | 四川大学 | Rock structural surface shear test method and implementation apparatus thereof |
| KR20130095005A (en) * | 2012-02-17 | 2013-08-27 | (주) 도담이앤씨종합건축사사무소 | Measuring method of adhesive power between rock-concrete and specimen for it |
| CN103604743A (en) * | 2013-10-31 | 2014-02-26 | 青岛林川工程技术咨询有限公司 | Testing apparatus and testing method for testing interlayer connection strength of pavement layers |
| CN103674833A (en) * | 2013-11-29 | 2014-03-26 | 西南交通大学 | Simple shearing test method and device for rock-concrete cement face |
| US20140174192A1 (en) * | 2012-12-21 | 2014-06-26 | Baker Hughes Incorporated | Apparatus for measuring shear bond strength of set cement and method of using same |
| CN103994969A (en) * | 2014-05-05 | 2014-08-20 | 河海大学 | Tester and test method for contact characteristic between soil and structure under waterpower combined action |
| CN105606466A (en) * | 2016-03-11 | 2016-05-25 | 大连理工大学 | Multifunctional shear box for similar material structural surface direct shear test |
| CN105758737A (en) * | 2016-04-22 | 2016-07-13 | 华北水利水电大学 | Method and device for testing shear strength of rock and concrete bond interface |
-
2016
- 2016-08-29 CN CN201610752287.2A patent/CN106370589B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3566681A (en) * | 1968-12-20 | 1971-03-02 | Incerc Inst De Cercetari In Co | Method and apparatus for pure shear testing of rocks and other building materials |
| CN101509868A (en) * | 2009-02-18 | 2009-08-19 | 西北农林科技大学 | Method for testing interface shear strength of sample bonded by sealant and bonded substrate |
| CN102042937A (en) * | 2009-10-14 | 2011-05-04 | 同济大学 | Site large-scale direct shearing test device of shearing strength of concrete and basement adhesion surface |
| CN201765074U (en) * | 2010-09-09 | 2011-03-16 | 中国长江三峡集团公司 | Test device for measuring contract stress state between soil and structural contact surface |
| KR20130095005A (en) * | 2012-02-17 | 2013-08-27 | (주) 도담이앤씨종합건축사사무소 | Measuring method of adhesive power between rock-concrete and specimen for it |
| CN102735555A (en) * | 2012-07-02 | 2012-10-17 | 四川大学 | Rock structural surface shear test method and implementation apparatus thereof |
| US20140174192A1 (en) * | 2012-12-21 | 2014-06-26 | Baker Hughes Incorporated | Apparatus for measuring shear bond strength of set cement and method of using same |
| CN103604743A (en) * | 2013-10-31 | 2014-02-26 | 青岛林川工程技术咨询有限公司 | Testing apparatus and testing method for testing interlayer connection strength of pavement layers |
| CN103674833A (en) * | 2013-11-29 | 2014-03-26 | 西南交通大学 | Simple shearing test method and device for rock-concrete cement face |
| CN103994969A (en) * | 2014-05-05 | 2014-08-20 | 河海大学 | Tester and test method for contact characteristic between soil and structure under waterpower combined action |
| CN105606466A (en) * | 2016-03-11 | 2016-05-25 | 大连理工大学 | Multifunctional shear box for similar material structural surface direct shear test |
| CN105758737A (en) * | 2016-04-22 | 2016-07-13 | 华北水利水电大学 | Method and device for testing shear strength of rock and concrete bond interface |
Non-Patent Citations (2)
| Title |
|---|
| 王保田 等: "《花岗岩与混凝土胶结面抗剪强度的试验研究》", 《岩土力学》 * |
| 陈记 等: "《基岩-混凝土胶结面剪切强度JRC-JCS模型研究》", 《河海大学学报（ 自然科学版）》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677596A (en) * | 2017-09-30 | 2018-02-09 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN107727569A (en) * | 2017-09-30 | 2018-02-23 | 华北水利水电大学 | A kind of test method for testing rock and concrete binding interface tensile strength |
| CN107677596B (en) * | 2017-09-30 | 2018-12-28 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN108918295A (en) * | 2018-05-16 | 2018-11-30 | 西南科技大学 | A kind of free straight snips system and method for rock joint |
| CN109103624A (en) * | 2018-09-03 | 2018-12-28 | 安庆金辉煌电子科技股份有限公司 | The installation pedestal of a kind of electronic equipment ground terminal |
| CN110823720A (en) * | 2019-11-20 | 2020-02-21 | 清华大学 | Direct shear test method for natural cemented filling rock fracture under high temperature condition |
| CN113188999A (en) * | 2021-04-22 | 2021-07-30 | 河海大学 | Device and method for estimating strength envelope of concrete and rock bonding interface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106370589B (en) | 2018-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106370589A (en) | Device and method for testing shear strength of cementation face between early-age sprayed concrete and rock | |
| CN107462492B (en) | The anchor rod anchored research method of large dosage swelling agent is carried out for CT scan technology | |
| CN105588802B (en) | It is a kind of for simulating the three-dimensional experiment system and experimental method of roadway surrounding rock plastic zone | |
| CN107255586B (en) | Obturation and country rock Composite rockmass routine test test sample-producing die and production method | |
| CN109540935A (en) | For CT scan intact loess flow priority state observation device and application method | |
| AU2017317602B2 (en) | Sound level meter-based tunnel roof rock Protodyakovnov coefficient detecting-while-drilling apparatus and method | |
| CN203908662U (en) | Explosion vibration sensor fixing device | |
| CN105424505B (en) | A kind of apparatus and method for meeting different sized samples triaxial shear tests | |
| CN108225550A (en) | Suitable for the blasting vibration mounting frame for sensor of hard rock long term monitoring, blasting vibration measurement system and blasting vibration measurement method | |
| CN205910062U (en) | Utilize true triaxial test machine to realize that two axial tension of rock press experimental device | |
| CN205665144U (en) | Core test piece infiltration coefficient measurement appearance is got in drilling | |
| CN101936161B (en) | In-situ measurement method for coal rock strength and deformation modulus | |
| CN107727569B (en) | A kind of test method for testing rock and concrete binding interface tensile strength | |
| Ishida et al. | Effect of injected water on hydraulic fracturing deduced from acoustic emission monitoring | |
| CN110409400B (en) | Testing device and testing method for measuring time-space evolution characteristics of mud turbidity | |
| CN205483810U (en) | Coal mine tunnel anchor bolt support nondestructive test laboratory bench | |
| CN109459290A (en) | A kind of NSCB sample preparation device and its application method for testing compacted cohesive soil I type fracture toughness | |
| CN206095880U (en) | Joint appearance is concretied in infiltration | |
| CN205607987U (en) | Soil body seepage flow process and deformation behaviour test device | |
| CN110333111A (en) | A kind of preparation method of the soft rock direct shear test undisturbed sample containing prefabricated shearing seam | |
| CN115931487A (en) | Method for testing cohesive force and internal friction angle of rock-like material | |
| CN105758559A (en) | Shear stress testing device and method | |
| AU2010339855A1 (en) | Estimation of reservoir permeability | |
| CN205484212U (en) | Country rock damage time effect test structure | |
| CN107942381A (en) | A kind of fine and close oily reservoir stratification seam quantitative forecasting technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20181030 Termination date: 20210829 |