CN206146815U - Indoor survey device of frictional force between soil body and structure thing - Google Patents
Indoor survey device of frictional force between soil body and structure thing Download PDFInfo
- Publication number
- CN206146815U CN206146815U CN201621226639.2U CN201621226639U CN206146815U CN 206146815 U CN206146815 U CN 206146815U CN 201621226639 U CN201621226639 U CN 201621226639U CN 206146815 U CN206146815 U CN 206146815U
- Authority
- CN
- China
- Prior art keywords
- soil body
- frictional force
- soil
- piston
- works
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides an indoor survey device of frictional force between soil body and structure thing, comprising a main frame, set up the soil sample room in the main frame, shear mechanism and load mechanism, the mid -mounting of main frame has the operation panel, place on the operation panel soil sample room, the piston involution is passed through to the bottom of soil sample room, it installs in the top of on -edge pole to shear the mechanism, the bottom of shearing the mechanism is connected with the dowel steel, be equipped with torque sensor between dowel steel and the shearing mechanism, the bottom of dowel steel is fixed with metallic disc, metallic disc gets into in the soil body of soil sample room, load mechanism includes lift step motor, lift step motor's output shaft passes through the connecting piece and connects in the piston, be equipped with weighing sensor between piston and the connecting piece, through weighing sensor and torque sensor respectively the acquisition test in -process apply in the normal force of the soil body and the soil body and metallic disc contact surface's shearing force, in order can be regarded as the load that the soil body bore, frictional force and corresponding relation between them between the soil body and the metallic disc.
Description
Technical field
This utility model is related to Geotechnical Engineering field of measuring technique, frictional force between more particularly to a kind of soil body and works
Indoor measurement device.
Background technology
In recent years, as the large foundation such as utilize of energy extraction, nuclear waste disposal, hydraulic engineering and the underground space is built
If a large amount of constructions of engineering, the determination problem of contact friction force is increasingly paid close attention between Rock And Soil and building structure, in mine
In the Geotechnical Engineerings such as exploitation, water conservancy and hydropower, tunnel, slope reinforcement, excavation of foundation pit, Rock And Soil touches wiping indirectly with building structure
Assessment important of the accurate determination of power to rock mass engineering project stability.Rock And Soil as continuous media material, its mechanics
Property can give research and verify by means such as in-situ test and laboratory tests；Works as artificial material, its mechanical property
Matter more can be by test method and be determined；And the two contact surface is a discontinuous presence, material near contact surface
The determination of performance needs to rely on special research technique.Especially in FEM calculation, the boundary condition of above-mentioned contact surface is usual
Emphasis is needed to determine, the whether reasonable of contact surface boundary condition setting will directly affect the accuracy of calculating.Therefore, ground
The determination of contact friction force between body and building structure will have ten to Hydroelectric Engineering Geology subject and the stable subject of rock mass engineering project
Point important theory significance and practical engineering application value.For the determination of frictional force between Rock And Soil and works, test is main
Wanting the research of frictional force indoor measurement device between means, therefore the soil body and works has important meaning to solving the above problems
Justice.
At present mostly test is, using electric vane boxshear apparatus, to test mainly for soil shear strength to industry, but
The frictional strength of the soil body and structural plane is more concerned with engineering construction, not for the soil body and knot in currently available technology
The assay device that structure thing base surface frictional force is tested.Therefore, it is necessary to design frictional force between a kind of soil body and works
Test device, to solve the above problems.
Utility model content
For the problem that prior art is present, this utility model provides one kind and can reliablely and stablely realize the soil body and structure
The applying of extruding force and shearing force on thing contact surface, for the soil body that mechanical property between the soil body and structure Interface is tested
The frictional force indoor measurement device between works.
To achieve these goals, this utility model is adopted the following technical scheme that：
Frictional force measuring device between a kind of soil body and works, including main frame, the soil sample being arranged in the main frame
Room, cutting mechanism and load maintainer, are provided with operating board in the middle part of the main frame, the soil sample chamber is positioned over the operating board
On, the bottom of the soil sample chamber is sealed by piston, and the test soil body is equiped with the soil sample chamber, fixed on the operating board
There is edge-on bar, the cutting mechanism is installed on the top of the edge-on bar, and the bottom of the cutting mechanism is connected with dowel steel, institute
State and torque sensor is provided between dowel steel and the cutting mechanism, the bottom of the dowel steel is fixed with rosette, described
Rosette is entered in the soil body, and the load maintainer is located at the lower section of the operating board, and the load maintainer includes lifting
Motor, the output shaft of the lifting motor is connected to the piston, the piston and the connection by connector
LOAD CELLS is provided between part, is gathered respectively in process of the test by the LOAD CELLS and the torque sensor and is applied
In the normal force and the soil body and the shearing force of the rosette contact surface of the soil body, with calculate the soil body bears
Load, frictional force and both corresponding relation between the soil body and the rosette.
Further, the main frame is including base plate, located at the column of the base plate both sides, and is fixed on the column top
The crossbeam in portion, the operating board is located between the crossbeam and the base plate.
Further, the column is elongated is provided with screw thread, for connecting for the base plate, the operating board and the crossbeam screw thread
Connect and be fixed on the column.
Further, the edge-on bar is provided with slide rail, and the both sides of the cutting mechanism are provided with sliding part, perpendicular along the slide rail
To movement.
Further, the cutting mechanism is connected including support bracket with the sliding part, is fixed with the support bracket
Motor is reversed, the bottom of the torsion motor is connected to the dowel steel, and the torsion motor top is connected with angle by gear
Degree dial plate, for showing the rotational angle of the rosette.
Further, the side of the main frame is provided with electrical control mechanism, and the torsion motor and the lifting motor are logical
Cross the electrical control mechanism control.
Further, the cylinder of the soil sample chamber including both ends open, is provided with lid at the top of the cylinder, the upper lid with
Sealed by the first sealing ring between the cylinder, the bottom of the cylinder is positioned on the operating board, the cylinder root edge
Sealed by the second sealing ring between the operating board, the operating board middle part is provided with through hole, and the top of the piston is located at
Through hole top and the through hole is shielded in, the bottom of the piston extends downwardly from the through hole and the connector connects
Connect, sealed by the 3rd sealing ring between the piston side and the cylinder inboard wall.
Further, the upper lid middle part is provided with shaft lever hole and is put into for bearing, and the dowel steel is through the shaft lever hole and institute
State bearing inner race cooperation.
Further, the upper lid is additionally provided with osculum, and the osculum inwall is provided with screw thread, described at the end of draining
Osculum is by segment hub seal.
The beneficial effects of the utility model：
Vertical loading force is applied to the soil body by load maintainer, the normal force that the soil body bears can be measured, by cutter
Structure to rosette apply shear, the shearing force of the soil body and rosette contact surface can be measured, so as to calculate the soil body bears
Load, frictional force and both corresponding relation between the soil body and rosette, said determination device is for the soil body and structure
The mechanical property of thing contact surface is tested, and can reliablely and stablely realize the soil body with extruding force and shearing on structure Interface
The applying of power, has filled up the blank of the soil body and structure Interface Mechanics Performance Testing device, and by different surface roughness
Rosette simulation unlike material, the works of type, realize that various different structure things are contacted with the soil body in set of device
The test of frictional force between face.
Description of the drawings
Fig. 1 is the structural representation of frictional force measuring device between this utility model soil body and works；
Fig. 2 is the structural representation of cutting mechanism in Fig. 1；
In figure, 1-main frame, 11-base plate, 12-column, 13-crossbeam, 14-operating board, 15-edge-on bar, 16-
Slide rail, 2-cutting mechanism, 21-sliding part, 22-support bracket, 23-torsion motor, 24-angle dial plate, 25-power transmission
Bar, 26-torque sensor, 27-rosette, 3-soil sample chamber, 31-cylinder, 32-upper lid, the 33-the first sealing ring,
34-bearing, 35-osculum, the 36-the second sealing ring, 37-through hole, 38-piston, the 39-the three sealing ring, 4-plus carrier aircraft
Structure, 41-lifting motor, 42-connector, 43-LOAD CELLS.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of this utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in this utility model embodiment
It is only used for explaining in relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each part etc., such as
When really the particular pose changes, then directionality indicates also correspondingly to change therewith.
In addition, the description for being related to " first ", " second " etc. in this utility model is only used for describing purpose, and it is not understood that
To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme
It will be understood that the combination of this technical scheme is not present when appearance is conflicting or cannot realize, also not in this utility model requirement
Protection domain within.
Such as Fig. 1, frictional force measuring device between a kind of soil body of this utility model offer and works, including main frame 1 are arranged
Soil sample chamber 3, cutting mechanism 2 and load maintainer 4 in main frame 1.
Such as Fig. 1, main frame 1 for equipment agent structure, in frame-like construction, operated by personnel for convenience, the master
Framework 1 has certain height, and is provided with all kinds of electrical control mechanisms in side.Main frame 1 includes base plate 11, and base plate 11 is straight
Connect and ground/test deck contact, for carrying single unit system.The both sides of base plate 11 are provided with column 12, and two root posts 12 are elongated
Screw thread is laid, the two ends of base plate 11 for being provided with correspondence screwed hole are fixed on by end thread respectively.The top of column 12 is provided with
Crossbeam 13, opens round-meshed crossbeam 13 through two root posts 12, is fixed on column 12 by upper lower nut.Base plate 11, column
12nd, crossbeam 13 is collectively forming counter force system, for the counter-force of vertical loading force in offer experiment.The middle part of column 12 is provided with behaviour
Make platform 14, operating board 14 is fixed on column 12 by the circular hole at its two ends through column 12 and by upper lower nut.Operating board
Edge-on bar 15 is installed for carrying cutting mechanism 2 on 14, edge-on bar 15 is rigidly connected in operating board 14, side by welding manner
Vertical rod 15 is provided with slide rail 16, for being engaged with the sliding part 21 of the both sides of cutting mechanism 2 so that cutting mechanism 2 can be along edge-on
Bar 15 is slided up and down.
As Fig. 1 and Fig. 2, cutting mechanism 2 include support bracket 22, support bracket 22 is connected by four bolts with sliding part 21
Connect, support bracket 22 is connected on edge-on bar 15 by sliding part 21, torsion motor 23 is fixed with support bracket 22, reverse
Motor 23 is fixed on support bracket 22 by four bolts, is reversed the bottom thread of motor 23 and is connected with dowel steel 25, dowel steel
In the soil body in 25 insertion soil sample chambers 3, the bottom thread of dowel steel 25 is connected with rosette 27, reverses the top of motor 23 and passes through
Gear connects angled dial plate 24, for showing the rotational angle of rosette 27.Sliding part 21 is by slide rail 16 and edge-on bar
15 are connected, by sliding up and down the position for changing rosette 27 in soil sample chamber 3 along edge-on bar 15 during test.Reverse electricity
Torque sensor 26 is connected between machine 23 and dowel steel 25, for being applied to the moment of torsion of the soil body in experiment with measuring, the torque value is most
The frictional force being scaled eventually between the soil body and rosette 27, i.e. contact surface shear strength.
As Fig. 1, soil sample chamber 3 include the cylinder 31 of upper and lower ends opening, cylinder 31 is hollow cylinder rustless steel cavity, interior
Footpath 150mm, height 150mm, have the expansion edge of a wing in upper and lower end parts, for other parts that are connected.The top of cylinder 31 is provided with
Upper lid 32, is sealed between upper lid 32 and cylinder 31 by the first sealing ring 33, sealing is realized by pressure during test, in upper lid 32
Portion is provided with shaft lever hole and is put into for bearing 34, and during the insertion soil sample chamber 3 of dowel steel 25 bearing 34 for covering thereon is initially passed through, dowel steel 25 with
The inner ring of bearing 34 is assembled by machining accuracy.In the present embodiment, symmetrically it is additionally provided with draining in the both sides of bearing 34 on upper lid 32
Hole 35, for the consolidation draining of the inside soil body of soil sample chamber in process of the test 3, the inwall of osculum 35 is provided with screw thread, when draining terminates
When, osculum 35 is by segment hub seal.In other embodiments, osculum 35 can also substitute directly row using hydraulic controller
Put.The bottom of cylinder 31 is positioned on operating board 14, is sealed by the second sealing ring 36 between the root edge of cylinder 31 and operating board 14,
Sealing is realized by pressure during test.The positive middle part of operating board 14 is provided with through hole 37, a diameter of 150mm of through hole 37, in cylinder 31
Footpath is equal, and piston 38 is provided with through hole 37, and the top of piston 38 is located at the top of through hole 37 and is shielded in through hole 37, the top of piston 38
Assembled by size design between side and the inwall of cylinder 31, by the 3rd sealing between the side of piston 38 and the inwall of cylinder 31
Circle 39 is sealed, and therebetween by assembly precision come the sealing in guarantee test, the bottom of piston 38 is from through hole 37 to downward
Stretch and be connected with load maintainer 4, during test, drive piston 38 to move up and down in cylinder 31 by load maintainer 4, realize to the soil body
Vertical loading.
Load maintainer 4 is located at the lower section of operating board 14, and load maintainer 4 includes lifting motor 41, lifts motor
41 are secured by bolts on base plate 11, and the output shaft for lifting motor 41 is connected to piston 38, piston by connector 42
Weighing and sensing 43 is provided between 38 and connector 42, the normal direction that the soil body is put in process of the test is gathered by LOAD CELLS 43
Power, to calculate to obtain the load that bears of the soil body.
The side of main frame 1 is provided with electrical control mechanism, reverses motor 23 and lifting motor 41 by electrical control mechanism control,
It should be noted that with regard to reverse in the present embodiment motor 23, lifting motor 41, load maintainer 4 and cutting mechanism 2 by
Corresponding electric-control system is controlled it, and electric-control system employing is electric-control system commonly used in the art, herein not
Describe in detail again.And the data transfer that electric-control system gathers LOAD CELLS 43 and torque sensor 26 is to computer system
In, LOAD CELLS 43 and torque sensor 2 used is also general sensor in the art, and those skilled in the art should
It is quite familiar with, is no longer described in detail herein.In the present embodiment, the range of LOAD CELLS 43 be 2kN, torque sensor 26
Range is 2Nm.LOAD CELLS 43 is installed between connector 42 and piston 38, and for measurement the table of rosette 27 is put on
The extruding force in face, torque sensor 26 is installed between torsion motor 23 and dowel steel 25, and for measurement round metal is put on
The shearing force on the surface of disk 27, so as to calculate the soil body bear load, between the soil body and rosette 27 frictional force and both
Corresponding relation.
Measure device of the present utility model is tested for the soil body with the mechanical property of structure Interface, can be stablized
The applying of the soil body and extruding force and shearing force on structure Interface is reliably achieved, the soil body and structure Interface power has been filled up
The control for learning performance testing device is blank, and simulates the structure of unlike material, type by the rosette of different surface roughness
Thing, can realize the test of frictional force between various different structure things and soil body contact surface in set of device.
The use process of frictional force measuring device is between the above-mentioned soil body and works：
Step one：Dress soil sample, drives lifting motor 41, makes piston 38 move to the bottommost of soil sample chamber 3, to soil sample
Load the experiment soil body in room 3 and tamp to target depth；
Step 2：Rosette 27 is positioned, and rosette 27 is placed centrally in soil body surface, will be installed with dowel steel 25
Upper lid 32 and the pre-assembled of cylinder 31, by rotating dowel steel 25 its rigging position with rosette 27 is determined, gold is determined repeatedly
Belong to the tram of disk 27 and screwing dowel steel 25 makes it be assemblied on rosette 27；
Step 3：Lid 32 is installed, lifts lid 32, then continue to fill the soil body and tamp up to filling into soil sample chamber 3,
Then upper lid 3 is installed on into the top of soil sample chamber 3 by bolt；
Step 4：Cutting mechanism 2 is installed, cutting mechanism 2 and torque sensor 26 are installed on into the top of dowel steel 25, and adjust
The position of whole cutting mechanism 2, tightens torque sensor 26；
Step 5：Pressure, opens lifting motor 41, drives piston 38 to rise, and the soil body in soil sample chamber 3 is pressed,
In the process, the osculum 35 of upper lid 32 allows draining；
Step 6：Shearing, after soil body vertical deformation is stable, opens and reverses motor 23, drive cutting mechanism 2 to the soil body with
The contact surface of rosette 27 is sheared, until destruction；
Step 7：Data acquisition, is gathered respectively by LOAD CELLS 43 and torque sensor 26 and is put in process of the test
The normal force and the soil body of the soil body and the shearing force of the contact surface of rosette 27, with calculate the soil body bear load, the soil body with gold
Frictional force and both corresponding relations between category disk 27.
Test proves that, frictional force indoor measurement device can smoothly be realized right between this utility model soil body and works
The loading of the soil body and structure Interface, and contact surface shearing is carried out, with stronger practicality, meet present engineering construction
Require.
Above example is only unrestricted to illustrate the technical solution of the utility model, although with reference to preferred embodiment pair
This utility model has been described in detail, it will be appreciated by those skilled in the art that can enter to the technical solution of the utility model
Row modification or equivalent, without deviating from the objective and scope of the technical program, it all should cover in power of the present utility model
In sharp claimed range.
Claims (9)
1. frictional force measuring device between a kind of soil body and works, it is characterised in that include：Main frame, is arranged at the main frame
Soil sample chamber, cutting mechanism and load maintainer in frame, is provided with operating board in the middle part of the main frame, the soil sample chamber is positioned over
On the operating board, the bottom of the soil sample chamber is sealed by piston, and the test soil body, the operation are equiped with the soil sample chamber
Edge-on bar is fixed with platform, the cutting mechanism is installed on the top of the edge-on bar, and the bottom of the cutting mechanism is connected with
Dowel steel, is provided with torque sensor between the dowel steel and the cutting mechanism, the bottom of the dowel steel is fixed with metal
Disk, the rosette is entered in the soil body, and the load maintainer is located at the lower section of the operating board, the load maintainer
Including lifting motor, the output shaft of the lifting motor is connected to the piston by connector, the piston with
LOAD CELLS is provided between the connector, is gathered tested respectively by the LOAD CELLS and the torque sensor
The normal force and the soil body of the soil body and the shearing force of the rosette contact surface are put in journey, to calculate described
Load that the soil body bears, frictional force and both corresponding relations between the soil body and the rosette.
2. frictional force measuring device between the soil body according to claim 1 and works, it is characterised in that：The main frame bag
Include base plate, located at the column of the base plate both sides, and the crossbeam being fixed at the top of the column, the operating board is located at described
Between crossbeam and the base plate.
3. frictional force measuring device between the soil body according to claim 2 and works, it is characterised in that：The column is elongated
Screw thread is provided with, for being fixed on the column for the threaded connection of the base plate, the operating board and the crossbeam.
4. frictional force measuring device between the soil body according to claim 1 and works, it is characterised in that：On the edge-on bar
Slide rail is provided with, the both sides of the cutting mechanism are provided with sliding part, vertically movable along the slide rail.
5. frictional force measuring device between the soil body according to claim 4 and works, it is characterised in that：The cutting mechanism
It is connected with the sliding part including support bracket, torsion motor, the bottom of the torsion motor is fixed with the support bracket
The dowel steel is connected to, the torsion motor top connects angled dial plate by gear, for showing the rosette
Rotational angle.
6. frictional force measuring device between the soil body according to claim 5 and works, it is characterised in that：The main frame
Side is provided with electrical control mechanism, and the torsion motor and the lifting motor are controlled by the electrical control mechanism.
7. frictional force measuring device between the soil body according to claim 1 and works, it is characterised in that：The soil sample chamber bag
The cylinder of both ends open is included, lid is provided with the top of the cylinder, the first sealing ring is passed through between the upper lid and the cylinder
Sealing, the bottom of the cylinder is positioned on the operating board, close by second between the cylinder root edge and the operating board
Seal is sealed, and the operating board middle part is provided with through hole, and the top of the piston is located at through hole top and is shielded in described logical
Hole, the bottom of the piston extends downwardly from the through hole and is connected with the connector, in the piston side and the cylinder
Sealed by the 3rd sealing ring between wall.
8. frictional force measuring device between the soil body according to claim 7 and works, it is characterised in that：The upper lid middle part
It is provided with shaft lever hole to be put into for bearing, the dowel steel coordinates through the shaft lever hole with the bearing inner race.
9. frictional force measuring device between the soil body according to claim 7 and works, it is characterised in that：The upper lid also sets
There is osculum, the osculum inwall is provided with screw thread, at the end of draining, the osculum is by segment hub seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226639.2U CN206146815U (en) | 2016-11-15 | 2016-11-15 | Indoor survey device of frictional force between soil body and structure thing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226639.2U CN206146815U (en) | 2016-11-15 | 2016-11-15 | Indoor survey device of frictional force between soil body and structure thing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146815U true CN206146815U (en) | 2017-05-03 |
Family
ID=58626486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621226639.2U Expired - Fee Related CN206146815U (en) | 2016-11-15 | 2016-11-15 | Indoor survey device of frictional force between soil body and structure thing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206146815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404661A (en) * | 2016-11-15 | 2017-02-15 | 沈阳建筑大学 | Indoor measuring device for friction between soil mass and structure and use method of measuring device |
| CN114324142A (en) * | 2021-11-26 | 2022-04-12 | 北京中煤矿山工程有限公司 | Contact surface friction measuring device |
-
2016
- 2016-11-15 CN CN201621226639.2U patent/CN206146815U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404661A (en) * | 2016-11-15 | 2017-02-15 | 沈阳建筑大学 | Indoor measuring device for friction between soil mass and structure and use method of measuring device |
| CN106404661B (en) * | 2016-11-15 | 2023-08-15 | 沈阳建筑大学 | Indoor measuring device for frictional force between soil body and structural object and using method thereof |
| CN114324142A (en) * | 2021-11-26 | 2022-04-12 | 北京中煤矿山工程有限公司 | Contact surface friction measuring device |
| CN114324142B (en) * | 2021-11-26 | 2024-03-26 | 北京中煤矿山工程有限公司 | Contact surface friction force measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105952461B (en) | A kind of experimental rig and method for being used to simulate earth pressure balanced shield, EPBS construction sediment improvement | |
| CN106404661A (en) | Indoor measuring device for friction between soil mass and structure and use method of measuring device | |
| CN103616493B (en) | A kind of three-dimensional artificial rainfall reservoir landslide physical experiments equipment | |
| CN102866241B (en) | Three-directionally-loaded large-scale three-dimensional similarity simulation test method | |
| CN105040754B (en) | Device for testing limited soil mass rigid retaining wall soil pressure model | |
| CN104713788B (en) | Strain-control type tension-shearing direct shear apparatus | |
| CN203561633U (en) | Three-dimensional artificial rainfall reservoir type physical slide model test equipment | |
| CN103499268B (en) | The space relative deformation measurement mechanism of dish and lower wall in a kind of in-situ rock joint plane | |
| CN110261234B (en) | Fractured rock mass separation layer anchoring control simulation test device and method | |
| CN108252340A (en) | Measure the device and test method of the limited retaining wall pressure of banketing of different displacement models | |
| CN102914475A (en) | Shear test device for observing mechanical property of interface between underwater soil and structure | |
| CN206146815U (en) | Indoor survey device of frictional force between soil body and structure thing | |
| CN204575465U (en) | Portable soft layer in-situ direct shear tester | |
| CN107725006A (en) | A kind of coal bed drilling gas pumping simulation test device and method | |
| CN103061774A (en) | Shield tunnel construction environment simulation unit | |
| CN206223564U (en) | A kind of fixed loading device based on side slope | |
| CN103308393B (en) | Formation fracturing resistance testing device and method | |
| CN104294864B (en) | Shallow foundation V-H-M space loading experiments of measuring device | |
| CN102879550B (en) | Three-dimensional loads the load simulated method of large-scale three dimensional resemble simulation test | |
| CN204163126U (en) | Foundation three-freedom moving static loading experimental rig | |
| CN105890947A (en) | Device and method for preparation of soil body for site soil body direct shear test and direct shear test | |
| CN206906160U (en) | A kind of experimental rig for measuring light steel quarter bend truss beam connection shear behavior | |
| CN105527195A (en) | Large-deformation vane shear rheological test system for simulating debris flow initiation | |
| CN107218974A (en) | A kind of coal mine underground reservoir coefficient of storage determines device | |
| CN111680896A (en) | Coal mine underground reservoir safety distance determination method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170503 Termination date: 20211115 |