CN109470841A - For testing the multifunctional stirring experimental rig of shield soil improvement effect - Google Patents
For testing the multifunctional stirring experimental rig of shield soil improvement effect Download PDFInfo
- Publication number
- CN109470841A CN109470841A CN201811637446.XA CN201811637446A CN109470841A CN 109470841 A CN109470841 A CN 109470841A CN 201811637446 A CN201811637446 A CN 201811637446A CN 109470841 A CN109470841 A CN 109470841A
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- stirring
- barrel
- improvement effect
- testing
- experimental rig
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- 238000003756 stirring Methods 0.000 title claims abstract description 55
- 239000002689 soil Substances 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000000694 effects Effects 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 8
- 239000000440 bentonite Substances 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013049 sediment Substances 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 2
- 238000007596 consolidation process Methods 0.000 claims 1
- 210000004907 gland Anatomy 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0042—Force sensors associated with force applying means applying a torque
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The present invention is a kind of for testing the multifunctional stirring experimental rig of shield soil improvement effect, and the device mainly includes barrel, lever load system and stirring systems.Wherein, barrel (1) is the non-covered container being welded by sheet metal；Lever load system mainly includes lever arm (6), force application rod (5) and counterweight (11), and force application rod (5) transmits static load to stirring material by the pressurization lid (2) being set in barrel (1)；Stirring system includes agitating shaft (3), stirring blade (4), torque sensor (13) and decelerating motor (15), the bottom plate that agitating shaft (3) passes through barrel (1) is laid along the axis of barrel (1), it is staggeredly welded with the band-like stirring blade of stereo spiral (4) thereon, torque sensor (13) and decelerating motor (15) and agitating shaft are coaxially arranged, and three is connected by shaft coupling (14).The device can be used for the stirring of the improved materials such as bentonite slurry and the soil body, while sediment improvement effect can be evaluated in adherency soil body situation on the stirring torque and observation stirring blade measured by analysis, is a kind of multifunctional mixer.
Description
Technical field
The present invention relates to Tunnel Engineering fields, and in particular to a kind of for testing multi-functional the stirring of shield soil improvement effect
Experimental rig is mixed, which can be used for the stirring of sediment improvement effect assessment and dregs, bentonite slurry.
Background technique
Sediment improvement is almost an essential ancillary measure in earth pressure balanced shield, EPBS construction.To obtain sediment improvement
Parameter carries out indoor slump consistancy test usually before construction, by appraising through comparison the performance of different ratio Modified soil, optimization bentonite,
The addition ratio of the modifying agents such as foam, high molecular polymer.However during the test, there are three inconveniences for discovery:
(1) soil body to be improved and selected modifying agent need to be fully mixed when testing, the method generallyd use is manually to use
Scoop, which is stirred, carries out mix, not only time-consuming and laborious, but also is difficult to stir evenly；
(2) bentonite meets water and easily agglomerates, the more difficult mixing of bentonite slurry, and especially after fermentation a period of time, slurries become
It is more uneven, influence test effect.And agitating device is equipped in the mud fermentor at practice of construction scene, in slurries extruding
It is stirred simultaneously；
(3) conditioned soil performance is only measured with slump value, be only capable of the mobility of the reflection soil body, and for same in construction
The soil body being concerned but has no way of judging to the adhesiveness of cutterhead and the influence to driving energy consumption；And at practical shield sealed compartment
In there is pressure condition, slump consistancy test cannot take into account this factor, and atmospheric pressure state is to the performance of modifying agent, especially foam
Have a great impact.
Summary of the invention
The object of the invention is to provide a kind of for testing shield soil improvement effect to overcome above-mentioned difficulties
Multifunctional stirring experimental rig, the apparatus structure is simple, easily operated, can solve above three difficult point.
The purpose of the present invention can be achieved through the following technical solutions:
The device includes barrel, lever load system and stirring system.
(1) barrel: barrel is bolted on bracket, is the non-covered container being welded by sheet metal, can be contained soil
The mixture of body, modifying agent or the soil body and modifying agent, upper part are welded with handle, facilitate carrying and cleaning；
(2) lever load system: mainly including lever arm, force application rod and counterweight.The fulcrum of lever is set to and is welded on bracket
On pillar on, lever arm is connect with pillar by a kind of connector, and force application rod upper end and lever arm consolidate, and lower end aligned is set to material
Pressurization lid in cylinder.Counterweight is placed on pallet, and pallet is hung on the hook being fixed on lever arm.
(3) stirring system: including agitating shaft, stirring blade, torque sensor and decelerating motor.Agitating shaft passes through barrel
Bottom plate is laid along the axis of barrel, is welded with stirring blade thereon.Torque sensor and decelerating motor and agitating shaft are coaxially arranged,
And torque sensor is arranged between agitating shaft and decelerating motor, three is connected by shaft coupling.Wherein decelerating motor bolt
It is connected on motor fixing plate, the motor fixing plate is fixed on bracket.
The barrel bottom plate is in inner concavity, and encapsulation process is passed through in the gap between bottom plate opening and agitating shaft, to prevent
Slurries or moisture exudation in test material, damage underlying torque sensor and decelerating motor；The pressurization is placed on
Lever is passed to test material to the static load that it applies, is embedded with pressure sensing in pressurization lid by the top of test material
Device is also welded with lid ear thereon, conveniently guides and supports for monitoring pressure value；One end cap of connector on pillar, and with fastening
Bolt clamps, and another end cap is fixed on lever arm, and through the second positioning bolt, and such connector is easy to disassemble, and can make thick stick
Lever arm arbitrarily rotates in the horizontal plane；The hook can be moved along lever arm, and be fixed by the first positioning bolt, thus thick stick
Pole length is adjustable, can get the loading device of different loading ratios；The stirring blade spatially spiral shape, be staggered in
Agitating shaft, quantity can be adjusted voluntarily as needed.The stirring blade of this solid can generate shearing to material, squeeze, rolling
It is acted on action of forced stirring such as rubbings, material is made to obtain uniform stirring in strenuous exercise.
Compared with prior art, the beneficial effects of the present invention are embodied in:
(1) stereo spiral formula stirring blade can generate the action of forced stirring such as rolling, rubbing, shearing to stirring material and act on,
Therefore conditioned soil or bentonite slurry can be made to be fully mixed；
(2) it can determine whether sediment improvement effect by adhering to soil body situation and analysis stirring torque on observation stirring blade,
So that sediment improvement laboratory test is more diversified；
(3) load to the stirring soil body can be achieved, simulate the on-line pressure sealant cabin of shield, and use lever-loading, operation
Simply, easy to accomplish.
Detailed description of the invention
Attached drawing 1 is the general structure schematic diagram of blender in the present invention；
Attached drawing 2 is lever arm anchor tip schematic diagram in the present invention；
Attached drawing 3 is the schematic diagram of agitating device in the present invention.
Mark explanation in attached drawing: 1- barrel, 2- pressurization lid, 3- agitating shaft, 4- stirring blade, 5- force application rod, 6- lever
Arm, 7- connector, 8- hook, the first positioning bolt of 9-, 10- pallet, 11- counterweight, 12- pillar, 13- torque sensor, 14- shaft coupling
Device, 15- decelerating motor, 16- motor fixing plate, 17- pressure sensor, 18- lid ear, 19- handle, 20- bracket, 21- fasten spiral shell
Bolt, the second positioning bolt of 22-.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
A kind of multifunctional mixer for the test of shield soil improvement, as shown in Figure 1, 2, 3, the composition of the device are as follows:
(1) barrel: barrel 1 is bolted on bracket 20, is the non-covered container being welded by sheet metal, upper part
It is welded with handle 19, facilitates carrying and cleaning.
(2) lever load system: mainly including lever arm 6, force application rod 5 and counterweight 11.The fulcrum of lever is set to and is welded on
On pillar 12 on bracket 20, lever arm 6 is connect with pillar 12 by connector 7, and 5 upper end of force application rod is mounted on 6 middle part of lever arm,
Lower end aligned is set to the pressurization lid 2 in barrel 1.Counterweight is placed on pallet 10, and pallet 10 is hung on and is fixed on 6 end of lever arm
On hook 8.
(3) stirring system: including agitating shaft 3, stirring blade 4, torque sensor 13 and decelerating motor 15.Agitating shaft 3 is worn
The bottom plate for crossing barrel 1 is laid along the axis of barrel 1, is welded with stirring blade 4 thereon.Torque sensor 13 and decelerating motor 15 with
Agitating shaft is coaxially arranged, and torque sensor 13 is arranged between agitating shaft 3 and decelerating motor 15, and three is connected by shaft coupling 14
It connects.Wherein decelerating motor 15 is bolted on motor fixing plate 16, and motor fixing plate 16 is fixed on bracket 20.
The barrel 1 can contain the mixture of the soil body, modifying agent or the soil body and modifying agent, for bentonite slurry etc.
The stirring of improved materials and the soil body, while sediment improvement effect can be evaluated by the stirring torque that analysis measures；The bottom plate is in
Inner concavity, and encapsulation process is passed through in the gap between bottom plate opening and agitating shaft 3, to prevent the slurries or moisture in test material
Exudation, damages underlying torque sensor 13 and decelerating motor 15；The pressurization lid 2 is placed in the top of test material, will
Lever passes to test material to the static load that it applies, and pressure sensor 17 is embedded in pressurization lid, for monitoring pressure
Value, is welded with lid ear 18 thereon, conveniently guides and supports；7 one end cap of connector clamps on pillar 12, and with fastening bolt 21,
Another end cap is fixed on lever arm 6, and through positioning bolt, and such connector 7 is easy to disassemble, and lever arm 6 can be made in level
It is arbitrarily rotated in face；The hook 8 can be moved along lever arm 6, and fixed by the first positioning bolt 9, thus lever length
It is adjustable, it can get the loading device of different loading ratios；The stirring blade 4 spatially spiral shape, is staggered in stirring
Axis, quantity can be adjusted voluntarily as needed, be disposed with 6 stirring blades 4, the stirring blade of this solid in the present embodiment altogether
The action of forced stirring such as shearing, extruding, rolling and rubbing can be generated to material to act on, and stir material uniformly in strenuous exercise
It mixes.
Claims (8)
1. a kind of for testing the multifunctional stirring experimental rig of shield soil improvement effect, including barrel (1), feature exists
In: barrel (1) is mounted on stirring system, and lever load system is installed above barrel (1)；The lever load system includes thick stick
The fulcrum of lever arm (6), force application rod (5) and counterweight (11), lever is set on pillar (12), force application rod (5) upper end and lever arm (6)
Consolidation, lower end aligned are set to the pressurization lid (2) in barrel (1)；The agitating shaft (3) of stirring system is penetrated along barrel (1) axis,
On be welded with stirring blade (4), torque sensor (13) is arranged between agitating shaft (3) and decelerating motor (15), and three passes through
Shaft coupling (14) connection.
2. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
In: decelerating motor (15) is bolted on motor fixing plate (16), and motor fixing plate (16) is fixed on bracket (20).
3. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
In: the agitating shaft (3) penetrates from barrel (1) bottom, the bottom plate center projections of barrel (1), and bottom plate opening and agitating shaft
(3) there is sealing structure between.
4. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
In: the pressurization lid (2) is placed in the top of test material, and lever is passed to test material to the static load that it applies；Add
It is embedded on gland (2) pressure sensor (17), lid ear (18) is welded in pressurization lid (2).
5. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
Connect with pillar (12) by connector (7) in: lever arm (6), (7) one end cap of connector is on pillar (12), and with tightly
Fixing bolt (21) clamps；Another end cap is fixed on lever arm (6), and through the second positioning bolt (22)；Pillar (12) installation
On bracket (20).
6. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
In: the hook (8) can be mobile along lever arm (6) and fixed by the first positioning bolt (9).
7. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
In: the stirring blade (4) spatially spiral shape, it is staggered installation of in agitating shaft (), quantity adjusts as needed.
8. according to claim 1 for testing the multifunctional stirring experimental rig of shield soil improvement effect, feature exists
In: the barrel (1) can contain the mixture of the soil body, modifying agent or the soil body and modifying agent, change for bentonite slurry etc.
Sediment improvement effect can be evaluated by analyzing the stirring torque measured in the stirring of good timber material and the soil body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637446.XA CN109470841A (en) | 2018-12-29 | 2018-12-29 | For testing the multifunctional stirring experimental rig of shield soil improvement effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637446.XA CN109470841A (en) | 2018-12-29 | 2018-12-29 | For testing the multifunctional stirring experimental rig of shield soil improvement effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109470841A true CN109470841A (en) | 2019-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637446.XA Pending CN109470841A (en) | 2018-12-29 | 2018-12-29 | For testing the multifunctional stirring experimental rig of shield soil improvement effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546552A (en) * | 2021-07-27 | 2021-10-26 | 北京住总集团有限责任公司 | Mud stirring device |
| CN115901303A (en) * | 2022-11-14 | 2023-04-04 | 中国水利水电第三工程局有限公司 | Soil pressure balance shield that can simulate improver injection prevents gushing test device |
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