CN105510559B - Weak cementing rock mass directional splitting grouting test system - Google Patents
Weak cementing rock mass directional splitting grouting test system Download PDFInfo
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- CN105510559B CN105510559B CN201610075996.1A CN201610075996A CN105510559B CN 105510559 B CN105510559 B CN 105510559B CN 201610075996 A CN201610075996 A CN 201610075996A CN 105510559 B CN105510559 B CN 105510559B
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- stripper plate
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- stripper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The invention discloses a kind of weak cementing rock mass directional splitting grouting test system, the fastening screw arranged including some parallel vertical, the most parallel on fastening screw the first reinforcing stripper plate device is installed, second reinforces stripper plate device and loading plate, first reinforcing stripper plate device and second is reinforced in the upper space formed between stripper plate device and is provided with reinforcement experiment cylinder, and on reinforcement experiment cylinder, lower end and first reinforces all to use between stripper plate device and the second reinforcing stripper plate device and seals structure, the lower space formed between second reinforcing stripper plate device and loading plate is provided with reinforcing body stripper apparatus.This system structure is simple, easy to operate, it is achieved that weak cementing rock mass directional splitting grouting test is carried out and reinforcing body magmatic rock interface mechanics and the sampling of shape characteristic sample and test job smoothly.
Description
Technical field
The present invention relates to a kind of During Geotechnical Tests device, a kind of weak cementing rock mass directional splitting grouting test system.
Background technology
In the underground engineering construction such as mine, tunnel, often there is the problems such as surrouding rock deformation is big, water yield is big, even can occur
Gushing water is dashed forward mud disaster, causes huge personnel's property loss.Slip casting reinforces weak surrounding rock, the one of improvement water damage as a kind of
Effective means has obtained increasingly being widely applied in underground engineering disasters is administered.
The aspects such as the improvement degree of grouting and reinforcing hydrodynamic properties and reinforcing body destructive characteristics are the emphasis of research at present, use existing
Field test and simulation laboratory test conduct a research.Scientific research personnel is many at present drills through test specimen from grouting and reinforcing body, tests grouting and reinforcing
The uniaxial compressive strength of body test specimen and anti-permeability performance (such as: CN201420249972) thereof；Research shows, grouting and reinforcing body
Mechanical property has significant structure effect.Trace it to its cause owing to slurry arteries and veins non-uniform Distribution in reinforcing body causes, i.e. starch
Arteries and veins-noted the rock mass interface mechanics character control mechanical behavior of reinforcing body, therefore needs badly and carries out grinding of slurry-rock interface mechanics feature
Study carefully.Technology and the method for the interface mechanics character research of slurry-rock are the most immature, lack relevant assay device and test method, difficult
To determine reinforcing somaplasm-rock interface mechanics and shape characteristic.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of weak cementing rock mass directional splitting grouting test
System, this system structure is simple, easy to operate, it is possible to determine reinforcing somaplasm-rock interface mechanics and shape characteristic.
For achieving the above object, the present invention uses following technical proposals:
A kind of weak cementing rock mass directional splitting grouting test system, the fastening screw arranged including some parallel vertical, fasten spiral shell
The most parallel the first reinforcing-stripper plate device, the second reinforcing-stripper plate device and the loading plate of being provided with on bar, first
The upper space formed between reinforcing-stripper plate device and the second reinforcing-stripper plate device is provided with reinforcement experiment cylinder, and reinforces
All use between test cylinder upper and lower end and the first reinforcing-stripper plate device and the second reinforcing-stripper plate device and seal structure, second
The lower space formed between reinforcing-stripper plate device and loading plate is provided with reinforcing body stripper apparatus；
Described first reinforcing-stripper plate device includes the first securing plate setting up and down and the first stripper plate, in the first securing plate
Being provided with the injected hole communicated with described upper space at the heart, injected hole is connected with grouting equipment by snap joint；First takes off
Template is annular, and its lower surface has a first annular groove matched with reinforcement experiment cylinder upper end along inner annular edge；
Described second reinforcing-stripper plate device includes the second stripper plate setting up and down and the second securing plate, and the second stripper plate is ring
Shape, its upper surface has second cannelure matched with reinforcement experiment cylinder lower end along inner annular edge；
Described reinforcing body stripper apparatus includes jack and pallet, is installed on loading plate central upper portion position bottom jack, thousand
The hydraulic stem front end on jin top fixedly mounts with center, tray bottom.
Described first securing plate, the first stripper plate, the second stripper plate, the second securing plate and loading plate are disc.
The first rubber seal is laid, it is possible to make to be in close contact between the two between described first securing plate and the first stripper plate,
Described upper space is avoided to connect with the space outerpace of single unit system.
Several the first control holes, position mated with fastening screw and can pass through it are evenly arranged with in described first securing plate.
Several the second control holes, position mated with fastening screw and can pass through it are evenly arranged with on described first stripper plate, the
Being arranged at the first fixing hole that is vertical with the second control hole, position and that communicate on one stripper plate side, high-strength bolt screws in the first fixing hole
Withstand on fastening screw, make first demoulding be fixedly mounted on fastening screw.
It is provided with the first rubber gasket in described first annular groove and between reinforcement experiment cylinder upper end, makes reinforcement experiment cylinder upper end
Seal with cannelure, it is to avoid media leaks in reinforcement experiment cylinder during construction.
The second rubber seal is laid, it is possible to make to be in close contact between the two between described second securing plate and the second stripper plate,
Described upper space is avoided to connect with the space outerpace of single unit system.
Several equally distributed ear grooves of the outer rim welding condition of equivalent thickness of described second securing plate, offer in the middle part of ear groove and can make
The slippage slot that fastening screw passes.
Centrage and the second securing plate edge of described slippage slot are concentric circular, it is simple to be stuck in slippage slot by fastening screw.
Several the 3rd control holes, position mated with fastening screw and can pass through it are evenly arranged with on described second stripper plate, the
Being arranged at the second fixing hole that is vertical with the 3rd control hole, position and that communicate on two stripper plate sides, high-strength bolt screws in the second fixing hole
Withstand on fastening screw, make the second stripper plate be fixedly mounted on fastening screw.
It is provided with the second rubber gasket in described second cannelure and between reinforcement experiment cylinder lower end, makes reinforcement experiment cylinder upper end
Seal with cannelure, it is to avoid media leaks in reinforcement experiment cylinder during construction.
Described reinforcement experiment cylinder is the cylinder of upper and lower opening, facilitates the extraction of the input of medium, shaping, and cylinder.
Some equally distributed the 4th control holes, position mated with fastening screw and can pass through it are drilled with on described loading plate circumference,
Loading plate circle centre position is drilled with the 3rd fixing hole, and the 3rd fixing hole is connected by fixing bolt and jack are fixing.
Described pallet is discoid, and its circle position, bottom surface is drilled with the connecting hole being connected with jack hydraulic bar.
One utilizes weak cementing rock mass directional splitting grouting test system to carry out the test of weak cementing rock mass reinforcing body slurry-rock interface feature
Method, comprises the following steps:
(1) tested by the note basic physical property of rock mass: according to underground engineering weak cement rock concrete conditions in the establishment of a specific crime, carry out soil test test rock
The basic hydraulic properties of body；
(2) pilot system assembles: fix loading plate and the second reinforcing-stripper plate device, loading plate and second by fastening screw
Space is left to dispose reinforcing body stripper apparatus between reinforcing-stripper plate device；The is placed between the second securing plate and the second stripper plate
Two rubber gaskets, are placed in the second cannelure successively by the second rubber seal and reinforcement experiment cylinder；By weak cement rock
Soil body material is filled into reinforcement experiment cylinder by design, and reserved vertical structure face in Rock And Soil；Material filling is complete and prefabricated
After structural plane, fix the first stripper plate and the second stripper plate position by high-strength bolt, and by fastening bolt fix the first reinforcing-
Stripper plate device and the second reinforcing-stripper plate device；
(3) carry out directional splitting grouting test: connect grouting device, control grouting pressure machine slip casting speed, the then main edge of serosity
Induction direction, precast construction face and steering splitting diffusion occurs, form smooth slurry arteries and veins；
(4) the grouting and reinforcing body demoulding: after serosity reaches initial set, dismounting removes the first securing plate and the second securing plate；By jack
Be fixed on loading plate, adjust jack height so that it is on pallet be located just at the underface of the second stripper plate；After ready,
Start jack, make reinforcing body slowly depart from reinforcement experiment cylinder；
(5) slurry-rock interface feature test test specimen sampling: carefully split by reinforcing body, process, chooses slurry arteries and veins straight position, profit
With cutting ring in slurry arteries and veins-Rock And Soil interface sampling, and guarantee that Rock And Soil part is identical with slurry arteries and veins gel portion thickness, it is thus achieved that sample
Product are used for carrying out interface mechanical characteristic test；Obtain, in slurry arteries and veins-Rock And Soil interface, the sample that inspection surface is smooth, it is thus achieved that examination simultaneously
Sample carries out interface topography characteristic test；
(6) sample maintenance: mechanical characteristics test sample is difference maintenance 7d, 14d, 21d and 28d under the conditions of indoor natural ventilating,
Then carry out direct shear test, measure slurry-rock interface mechanics feature in the case of different slip casting condition, different curing time；Pattern is special
Levy in test sample is placed on vacuum drying oven and dry 24h, after making sample reach abundant drying regime, be scanned ultramicroscope
Test；
(7) laboratory experiment and Analysis on Results: the sample that maintenance is good is utilized respectively strain controlling direct shear apparatus and scanning electron microscope
To testing respectively, and arrange, analyze Experiment Result.
The invention have the benefit that
1, the most completely, rapidly from assay device disengaging is a difficult problem of grouting test to reinforcing body, and scientific research personnel is often
Need after off-test, make reinforcing body depart from by electronic stripper.Such a process increases the test procedure and cost, and
Grouting and reinforcing device needs to process according to stripper size (diameter is generally less than 175mm), it is difficult to realizes major diameter and adds and be fixedly mounted with
The processing put.The present invention can process the weak cementing rock mass grouting and reinforcing device of arbitrary dimension as required, and achieves reinforcing examination
Test-demoulding integration operation.
2, the grouting and reinforcing assay device of present invention design uses high-strength bolt, reinforcing-stripper plate, and with the use of seal washer,
Assay device good airproof performance, reliability is high, it is possible to realize the grouting pressure high-pressure slip-casting test more than 5MPa.Additionally, it is logical
The method crossing prefabricated inducement structure face, it is possible to make serosity splitting diffusion occur, for the system of slurry-rock interface sample along predetermined direction
Lay the foundation.
3, slurry-rock interface mechanics sample acquisition methods that the present invention announces, it is achieved that the efficient making of interface sample, it is possible to artificial
Produce a series of test specimen, provide technical support for the research of interface mechanical characteristics test under different grouting pressures.
4, present invention achieves the research of slurry-rock interface feature more comprehensively, i.e. reinforce somaplasm-rock interface mechanics and pattern is special
Levying sampling and the test job of sample, the research theoretical for grouting and reinforcing provides powerful support.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is 1# securing plate top view of the present invention；
Fig. 3 is 1# stripper plate top view of the present invention；
Fig. 4 is 2# securing plate top view of the present invention；
Fig. 5 is 2# stripper plate top view of the present invention；
Fig. 6 is loading plate top view of the present invention；
Fig. 7 is directional splitting grouting test method schematic diagram of the present invention；
Wherein, 1-1:1# securing plate, 1-2:1# stripper plate, 1-3: mining snap joint, 1-4: control hole, position I, 1-5: control
Hole II, position, 1-6: fixing hole I, 1-7: rubber seal I, 1-8: rubber gasket I, 1-9: injected hole, 1-10: ring
Shape groove I, 2-1:2# securing plate, 2-2:2# stripper plate, 2-3: slippage slot, 2-4: control hole, position III, 2-5: fixing hole II,
2-6: rubber seal II, 2-7: rubber gasket II, 2-8: cannelure II, 2-9: ear groove, 3-1: bearing plate, 3-2:
Fixing hole III, 3-3: control hole, position IV, 4-1: Manual hydraulic jack, 4-2: pallet, 4-3: connecting hole, 4-4: fixing spiral shell
Bolt, 5: fastening screw, 6: reinforcement experiment chamber, 7-1: grouting equipment, 7-2: Grouting Pipe, 7-3: precast construction face, 7-4:
Cement rock soil body material.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2,1# securing plate (the first securing plate) 1-1 is processed into Φ 250*10mm (i.e. by high model Steel material
Diameter 250mm, high 10mm) disk, circle centre position is drilled with Φ 20mm injected hole 1-9, fixing mining snap joint 1-3, even
Meet grouting equipment 7-1；1# securing plate 1-1 is drilled with 3 equally distributed Φ 20mm control hole, position I (the on Φ 210mm circumference
One control hole, position) 1-4, make fastening screw 5 pass.
As shown in Figure 1, Figure 3,1# stripper plate (the first stripper plate) 1-2 is processed into by high model Steel material
Φ 250*150*20mm (i.e. outside diameter 250mm, interior circular diameter 150mm, high 20mm) annulus.1# stripper plate 1-2 exists
It is drilled with 3 equally distributed Φ 20mm control holes, position II (the second control hole, position) 1-5 on Φ 210mm circumference, makes fastening screw 5
Pass.Control 1-5 corresponding position, hole, position II is diametrically drilled with Φ 6mm fixing hole I (the first fixing hole) 1-6, by high-strength spiral shell
Bolt makes 1# stripper plate 1-2 be fixed on fastening screw 5.1# stripper plate 1-2 lower surface processing Φ 170*150*5mm is (outside i.e.
Circular diameter 170mm, interior circular diameter 150mm, deep 20mm) cannelure I (first annular groove) 1-10, built-in rubber is close
Packing I (the first rubber gasket) 1-8.1# stripper plate 1-2 is stacked in below 1# securing plate 1-1, lays rubber between the two
Sealing ring I (the first rubber seal) 1-7.
As Figure 1 and Figure 4,2# securing plate (the second securing plate) 2-1 is processed into Φ 185*10mm (i.e. by high model Steel material
Diameter 185mm, high 10mm) disk, 3 equally distributed ear groove 2-9 of outer rim welding condition of equivalent thickness.In the middle part of ear groove 2-9
It is machined with the slippage slot 2-3 that width is 20mm, through fastening screw 5.
As shown in Figure 1, shown in Figure 5,2# stripper plate (the second stripper plate) 2-2 is processed into by high model Steel material
Φ 250*150*20mm (i.e. outside diameter 250mm, interior circular diameter 150mm, high 20mm) annulus.In 2# stripper plate 2-2
It is drilled with 3 equally distributed Φ 20mm control holes, position III (the 3rd control hole, position) 2-4 on Φ 210mm circumference, makes fastening screw 5
Pass.Control hole, position III 2-4 correspondence position is diametrically drilled with Φ 6mm fixing hole II (the second fixing hole) 2-5, by high-strength spiral shell
Bolt makes 2# stripper plate 2-2 be fixed on fastening screw 5.2# stripper plate 2-2 upper surface processing Φ 170*150*5mm (i.e. cylindrical
Diameter 170mm, interior circular diameter 150mm, deep 5mm) cannelure II (the second cannelure) 2-8, built-in rubber sealing gasket
II (the second rubber gasket) 2-7.2# stripper plate 2-2 is stacked and placed on above 2# securing plate 2-1, lays rubber between the two close
Seal II (the second rubber seal) 2-6.
As it is shown in figure 1, loading plate 3-1 is processed into Φ 300*20mm (i.e. diameter 300mm, high 20mm) by high model Steel material
Disk.Loading plate 3-1 is drilled with 3 equally distributed Φ 20mm control holes, position IV (the 4th control hole, position) on Φ 210mm circumference
3-3, makes fastening screw 5 pass.Loading plate 3-1 circle centre position is drilled with 1 Φ 10mm fixing hole III (the 3rd fixing hole) 3-2,
Fixed hydraulic jack 4-1.
As it is shown in figure 1, fastening screw 5 is Φ 16mm high-strength bolt.
As it is shown in figure 1, reinforcement experiment chamber 6 is to be become Φ 160*150*150mm by high strength alloy steel materials processing (i.e. cylindrical is straight
Footpath 160mm, interior circular diameter 150mm, high 150mm) cylinder formed.Reinforcement experiment chamber 6 is pushed up, bottom is respectively disposed on
1# stripper plate 1-2 and 2# stripper plate 2-2 cannelure I1-10, in cannelure II2-8, by fastening screw 5 and rubber gasket
I1-7, rubber gasket II 2-6 ensure sealing.
As it is shown in figure 1, reinforcing body stripper apparatus includes Manual hydraulic jack 4-1 and pallet 4-2.Manual hydraulic jack 4-1
Bottom is drilled with 1 Φ 10mm boring, is connected with loading plate 3-1 by fixing bolt 4-4.Pallet 4-2 is by high model steel
It is discoid that material is processed into Φ 150*20mm (i.e. diameter 150mm, high 20mm), and pallet 4-2 bottom surface home position is drilled with
Φ 25 × 6mm (i.e. diameter 25mm, deep 20mm) connecting hole 4-3, is used for connecting Manual hydraulic jack 4-1.
As shown in Fig. 1-Fig. 7, utilize slurry-rock circle after the weak cementing rock mass reinforcing of weak cementing rock mass directional splitting grouting test system
Region feature test method is:
1. according to underground engineering weak cement rock concrete conditions in the establishment of a specific crime, the soil test test basic hydraulic properties of rock mass is carried out.
2. fixing loading plate 3-1 and the second reinforcing-stripper plate successively by fastening screw 5, fixing loading plate 3-1 and second adds
Gu leave suitable space between-stripper plate to dispose reinforcing body stripper apparatus.Place between 2# securing plate 2-1 and 2# stripper plate 2-2
Rubber gasket II 2-6, is placed in cannelure II 2-8 successively by rubber seal II 2-7 and reinforcement experiment chamber 6.By weak
Cement rock soil body material 7-4 is filled into reinforcement experiment chamber 6 by design, and reserved vertical structure face 7-3, structure in Rock And Soil
Face size adjusts according to result of the test.Material filling is complete and after the 7-3 of precast construction face, fixes the 1# demoulding by high-strength bolt
Plate 1-2 and 2# stripper plate 2-2 position, and by the fixing reinforcing-stripper plate 1 of fastening bolt 5 and reinforcing-stripper plate 2.
3. connect grouting device 7-1, control grouting pressure machine slip casting speed, then serosity is mainly along induction direction, precast construction face
There is steering splitting diffusion, form more smooth slurry arteries and veins.
4., after serosity reaches initial set, dismounting removes 1# fixed plate 1-1 and 2# fixed plate 2-1；Manual hydraulic jack 4-1 is led to
Cross fixing hole III 3-2 to be fixed on loading plate 3-1, adjust jack 4-1 height so that it is on pallet 4-2 be located just at 2#
The underface of stripper plate 2-2.After the most ready, start Manual hydraulic jack 4-1, make reinforcing body slowly depart from reinforcement experiment
Chamber 6.
5. reinforcing body carefully split, process, choose slurry arteries and veins straight position, utilize cutting ring to sample in slurry arteries and veins-Rock And Soil interface,
Specification is Φ 61.8*20mm (i.e. diameter 61.8mm, high 20mm), and guarantees Rock And Soil part and slurry arteries and veins gel portion thickness
Roughly the same, it is thus achieved that sample is used for carrying out interface mechanical characteristic test；Obtain about 1cm3, and inspection surface in interface simultaneously
Smooth sample, it is thus achieved that sample carries out interface topography characteristic test.
6. mechanical characteristics test sample difference maintenance 7d, 14d, 21d and 28d under the conditions of indoor natural ventilating, is then carried out
Direct shear test, measures slurry-rock interface mechanics feature in the case of different slip casting condition, different curing time；Shape characteristic test specimens
Product dry 24h in being placed on vacuum drying oven, after making sample reach abundant drying regime, can be scanned testing electronic microscope.
7. the sample that maintenance is good is utilized respectively ZJ-4 type strain controlling direct shear apparatus and scanning electron microscope to testing respectively,
And arrange, analyze Experiment Result.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not to scope
Limiting, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
Various amendments that creative work to be paid can be made or deformation are still within protection scope of the present invention.
Claims (8)
1. a weak cementing rock mass directional splitting grouting test system, it is characterized in that, the fastening screw arranged including some parallel vertical, the most parallel on fastening screw the first reinforcing-stripper plate device is installed, second reinforcing-stripper plate device and loading plate, the upper space formed between first reinforcing-stripper plate device and the second reinforcing-stripper plate device is provided with reinforcement experiment cylinder, and on reinforcement experiment cylinder, all use between lower end and the first reinforcing-stripper plate device and the second reinforcing-stripper plate device and seal structure, the lower space formed between second reinforcing-stripper plate device and loading plate is provided with reinforcing body stripper apparatus；
Described first reinforcing-stripper plate device includes the first securing plate setting up and down and the first stripper plate, and the center of the first securing plate is provided with the injected hole communicated with described upper space, and injected hole is connected with grouting equipment by snap joint；First stripper plate is annular, and its lower surface has a first annular groove matched with reinforcement experiment cylinder upper end along inner annular edge；
Described second reinforcing-stripper plate device includes the second stripper plate setting up and down and the second securing plate, and the second stripper plate is annular, and its upper surface has second cannelure matched with reinforcement experiment cylinder lower end along inner annular edge；
Described reinforcing body stripper apparatus includes jack and pallet, is installed on loading plate central upper portion position bottom jack, and the hydraulic stem front end of jack fixedly mounts with center, tray bottom；
Described first securing plate, the second securing plate and loading plate are disc；
Described reinforcement experiment cylinder is the cylinder of upper and lower opening.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, it is characterized in that, lay the first rubber seal between described first securing plate and the first stripper plate, between described second securing plate and the second stripper plate, lay the second rubber seal.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, is characterized in that, described first securing plate is evenly arranged with several the first control holes, position mated with fastening screw and can pass through；
Several the second control holes, position mated with fastening screw and can pass through it are evenly arranged with on described first stripper plate, the first fixing hole that is vertical with the second control hole, position and that communicate it is arranged on first stripper plate side, high-strength bolt screws in the first fixing hole and withstands on fastening screw, makes first demoulding be fixedly mounted on fastening screw.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, it is characterized in that, it is provided with the first rubber gasket in described first annular groove and between reinforcement experiment cylinder upper end, reinforcement experiment cylinder upper end is made to seal with first annular groove, it is provided with the second rubber gasket in described second cannelure and between reinforcement experiment cylinder lower end, reinforcement experiment cylinder upper end is made to seal with the second cannelure, it is to avoid media leaks in reinforcement experiment cylinder during construction.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, is characterized in that, several equally distributed ear grooves of the outer rim welding condition of equivalent thickness of described second securing plate, offers the slippage slot that fastening screw can be made to pass in the middle part of ear groove；Centrage and the second securing plate edge of described slippage slot are concentric circular.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, it is characterized in that, several the 3rd control holes, position mated with fastening screw and can pass through it are evenly arranged with on described second stripper plate, the second fixing hole that is vertical with the 3rd control hole, position and that communicate it is arranged on second stripper plate side, high-strength bolt screws in the second fixing hole and withstands on fastening screw, makes the second stripper plate be fixedly mounted on fastening screw.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, it is characterized in that, some equally distributed the 4th control holes, position mated with fastening screw and can pass through it are drilled with on described loading plate circumference, loading plate circle centre position is drilled with the 3rd fixing hole, and the 3rd fixing hole is connected by fixing bolt and jack are fixing.
Weak cementing rock mass directional splitting grouting test system the most as claimed in claim 1, is characterized in that, described pallet is discoid, and its circle position, bottom surface is drilled with the connecting hole being connected with jack hydraulic bar.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610075996.1A CN105510559B (en) | 2016-02-03 | 2016-02-03 | Weak cementing rock mass directional splitting grouting test system |
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| CN201610075996.1A CN105510559B (en) | 2016-02-03 | 2016-02-03 | Weak cementing rock mass directional splitting grouting test system |
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| CN105510559B true CN105510559B (en) | 2016-09-14 |
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| CN106153414B (en) * | 2016-06-22 | 2018-10-12 | 中国科学院武汉岩土力学研究所 | A kind of indoor sample preparation device rupturing rock sample based on slurries reparation |
| CN105973669B (en) * | 2016-06-30 | 2018-07-03 | 徐春霞 | Cutting ring is repaired automatically, stripping fork |
| CN110823672B (en) * | 2019-10-18 | 2021-07-06 | 山东大学 | Manufacturing mold and method for water-rich weak surrounding rock splitting type grouting reinforcement body test piece |
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| CN201130176Y (en) * | 2007-12-05 | 2008-10-08 | 郭密文 | High pressure slip-casting pilot model apparatus |
| US20120193092A1 (en) * | 2011-01-31 | 2012-08-02 | Baker Hughes Incorporated | Apparatus and methods for tracking the location of fracturing fluid in a subterranean formation |
| CN103645306B (en) * | 2013-12-18 | 2016-07-06 | 中国地质大学（北京） | Slip casting experimental facilities |
| CN104297457B (en) * | 2014-10-27 | 2015-07-08 | 山东科技大学 | Three-dimensional grouting model test device and method |
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