CN205778880U - A kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement - Google Patents
A kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement Download PDFInfo
- Publication number
- CN205778880U CN205778880U CN201620609581.3U CN201620609581U CN205778880U CN 205778880 U CN205778880 U CN 205778880U CN 201620609581 U CN201620609581 U CN 201620609581U CN 205778880 U CN205778880 U CN 205778880U
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- soil
- cutter
- storehouse
- pressure
- test
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Abstract
The utility model discloses a kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement, including compression system, test Tu Cang, cutter disc system, cutter-devices system and soil output；During test, pressurizeed in slurry tank by air compressor machine, by the elastic liquid capsule of mud press-in in tank；By high-pressure slurry, the soil body is applied pressure, it is possible to simulation trapezoidal load suffered by Practical Project cutterhead.By shield cutter cutting dregs process is truly simulated, in shield soil storehouse, form the pressure environment consistent with Practical Project, at utmost ensure the reliability of simulation.By the size of soil pressure in monitoring shield soil storehouse, the pressure impact on unearthed efficiency in research storehouse；By monitoring soil output along the change of stroke pressure and the size of helical axis moment of torsion, thoroughly evaluating soil improvement effect.
Description
Technical field
This utility model relates to a kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement.This device can
To simulate shield-tunneling construction process, it is adaptable to sediment improvement test in tunnels and underground engineering technical field, belong to simulation tunnel and execute
The model test apparatus of work.
Background technology
Earth pressure balanced shield, EPBS is a kind of special-purpose machinery for underground engineering construction, due to its have advantage of lower cost,
Drivage efficiency is high, ground adaptability strong, to features such as surrounding environment influence are little, all obtain in all kinds of tunnel construction of China
Extensive application.The most in recent years, each province and city expanding economy, provincial capital and a line urban planning and building subway engineering
Project is increasing, has effectively promoted the development of China's Shield Construction Technique, also makes the geology that shield-tunneling construction faces simultaneously
Scope is constantly widened.Due to earth pressure balanced shield, EPBS construction it is crucial that the soil body that gets off of knife cutting to be made forms one in soil storehouse
Plant " Plastic Flow state ", thus beneficially soil output is carried outside, and then make to be formed between Tu Cang and excavation face one
The mechanical state of " weak under-voltage ", it is ensured that shield can be tunneled the most forward.Therefore to the cutting slag under different geological conditions
Soil is improved, and is to ensure that the key of the safe and efficient driving of shield.Research currently for sediment improvement mainly includes that scene is ground
Study carefully and Eccentric Loads in Layered Soils and Research.Job site carries out sediment improvement typically unit in charge of construction and really improves with experience by groping
The kind of agent and addition, Modified Standard as index, lacks research adaptive to modifying agent and amount with " not molding, easily flowing "
Fractional analysis.The ground adaptability of modifying agent then can preferably be studied by model test, simultaneously can adding with quantized modified agent
The dosage impact on sediment improvement effect.Existing shield sediment improvement model test apparatus be capable of in shield storehouse pressurization and
Soil output is unearthed, but due to from top compression, it is difficult to the pressure state of " weak under-voltage " in soil storehouse in simulation Practical Project；And
And due to top compression, soil solidifying, stirring difficulty, soil storehouse internal coiling axle bends because of vertical applied force, causes test effect
Undesirable.And other improved tests mostly use and manually mix and stir dregs, the mobility using infrastest to carry out improveing dregs is divided
In analysis, with Practical Project, in soil storehouse, dregs state difference is bigger.
Utility model content
The utility model proposes a kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement, this device
Can truly simulate earth pressure balanced shield, EPBS tunneling process, apply pressure and cutterhead rotating speed by regulation, different pressures can be studied
In the case of modifying agent kind and the addition impact on sediment improvement effect, by measure soil output along journey soil pressure be distributed feelings
Condition and helical axis torque condition, thoroughly evaluating improvement soil capability, optimize the mix proportion scheme of sediment improvement additive, put down for soil pressure
The speedy drivage in Different Strata of weighing apparatus shield provides reference.
For reaching above-mentioned purpose, this utility model takes following technical scheme.
A kind of for simulate earth pressure balanced shield, EPBS construction sediment improvement assay device, including compression system, test Tu Cang,
Cutter disc system, cutter-devices system and soil output；
Compression system include air compressor machine 1, appendix 2, slurry tank 4, dredging tube 7, pressure regulator valve 3, barometer 6, hydrostatic gauge 8,
Elastic liquid capsule 12；Wherein, containing mud in slurry tank 4, slurry tank top connects air compressor machine 1 by appendix 2, logical bottom slurry tank
Cross dredging tube 7 and connect elastic liquid capsule 12；
Cutter disc system includes cutter head panel, cutter, stirring rod；It is disposed with roller bearing 14 between cutter head panel and test soil storehouse
Carrying out cutterhead supporting, roller bearing 14 is embedded in the reserved draw-in groove in the bulkhead of test soil storehouse 9；Some spokes it are provided with on cutter head panel 13
Bar, arranges cutter in each spoke front, and each spoke back side arranges stirring rod 16, and the stirring rod 16 at all spoke back sides is overall
Helically line rule is installed；
Between cutter head panel is with the native storehouse in stirring rod 16 side and test, space is dregs storehouse, and dregs storehouse upper inside wall has
Modifying agent inlet 17；Dregs storehouse sidewall and centre position, bottom are installed soil pressure sensor 28；
Described cutter-devices system includes cutter plate driver main shaft 18, gear 19, decelerator 21, drives motor 22；
Soil output includes soil output shell 24, screw spindle 25, helical blade 26, spiral axis drive motor
27；Axially being disposed with soil pressure sensor at helical axis, measurement soil output, along stroke pressure, is installed going out earthenware end
There is a torque sensor, measure helical axis moment of torsion.
Described assay device, described test soil storehouse 9 is a diameter 1m, and longitudinal length is the tubular construction of 2m, wall
Thick 3cm, inner surface is smooth, has a long 0.5m at top, the detachable storehouse lid 10 of wide 0.5m, for banketing in storehouse, Tu Cang
Bottom uses bracket to support.
Described assay device, one end of test Tu Cang is provided with movable door 11, and a diameter of 1.1m of door, by thick 3cm
Steel plate make, center weld has two handles；Door can rotate around side hinge, opens and closes, convenient be unearthed and
Elastic liquid capsule 12 spoil disposal.
Described assay device, cutter plate driver main shaft 18 is the cylindrical structural of diameter 20cm, and one end is affixed with cutterhead, one
End and master gear 19 keyed jointing, master gear 19 is driven by two relative driving gears 20, drive gear 20 respectively with subtract
Speed device 21 is connected with driving motor 22, drives motor 22 to be arranged on concrete pier base.
Described assay device, soil output is connected with dregs storehouse soil outlet by flange 23, and angle of inclination is 22 degree,
Middle part uses concrete buttress 30 to support；Soil output shell 24 is the steel cylinder of 1.5cm for thickness, and internal diameter is 27cm, spiral
The a diameter of 10cm of axle 25, helical blade 26 thickness is 1cm, is welded on screw spindle 25, and pitch is 24cm.
Compared with prior art, the beneficial effects of the utility model are:
This utility model uses high-pressure slurry that the soil body is applied pressure, it is possible to the simulation trapezoidal lotus suffered by Practical Project cutterhead
Carry.By shield cutter cutting dregs process is truly simulated, in shield soil storehouse, form the pressure consistent with Practical Project
Force environment, at utmost ensures the reliability of simulation.By the size of soil pressure in monitoring shield soil storehouse, pressure pair in research storehouse
The impact of efficiency of being unearthed；By monitoring soil output along the change of stroke pressure and the size of helical axis moment of torsion, thoroughly evaluating soil
Body improved effect.Proposition of the present utility model, provides foundation for sediment improvement indoor model test, to optimizing in shield soil storehouse
The layout of stirring rod and Different Strata modifying agent preferably provide reference with quantitative research.
Accompanying drawing explanation
Fig. 1 is population structure schematic diagram of the present utility model；
Fig. 2 is test soil chamber structure schematic diagram (front view) of the present utility model；
Fig. 3 is test soil chamber structure schematic diagram (side view) of the present utility model；
Fig. 4 is cutter head structure detail drawing (front view) of the present utility model；
Fig. 5 is cutter head structure detail drawing (side view) of the present utility model；
Fig. 6 is this utility model cutter-devices system structural representation (front view)；
Fig. 7 is cutter-devices system structural representation (side view) of the present utility model；
Fig. 8 is soil output structural detail figure of the present utility model.
In figure: 1, air compressor machine, 2, appendix, 3, pressure regulator valve, 4, slurry tank, 5, liquidometer, 6, barometer, 7, dredging tube,
8, hydrostatic gauge, 9, test Tu Cang, 10, Tu Canggai, 11, movable door, 12, elastic liquid capsule, 13, cutter head panel, 14, roller bearing axle
Hold, 15, cutter, 16, stirring rod, 17, modifying agent inlet, 18, cutter plate driver main shaft, 19, mainshaft gear, 20, drive gear,
21, decelerator, 22, drive motor, 23, flange, 24, soil output shell, 25, soil output main shaft, 26, helical-blade
Sheet, 27, spiral axis drive motor, 28, soil pressure case, 29, torque sensor, 30, concrete buttress, 31, dregs catcher.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail.
As it is shown in figure 1, this assay device includes compression system, test Tu Cang, cutter disc system, cutter-devices system and spiral
Go out earthenware；
Compression system include air compressor machine 1, appendix 2, slurry tank 4, dredging tube 7, pressure regulator valve 3, barometer 6, hydrostatic gauge 8,
Elastic liquid capsule 12.Wherein, slurry tank 4 is a long 1m, the closing cuboid container of wide 1m, high 2m, interior Sheng mud, slurry tank
Top connects air compressor machine 1 by the appendix 2 of internal diameter 3cm, connects elastic liquid by the dredging tube 7 of internal diameter 4cm bottom slurry tank
Capsule 12.During test, pressurizeed in slurry tank 4 by the air compressor machine that output pressure is 1MPa, by the elastic liquid capsule of mud press-in in tank
12, elastic liquid capsule uses high pressure resistant rubber to make, and longitudinal extension length can reach 1.5m.
Fig. 2,3 it show test the facing and schematic side view of Tu Cang.Test soil storehouse 9 is a diameter 1m, longitudinal length
For the tubular construction of 2m, wall thickness 3cm, inner surface is smooth, has a long 0.5m at top, the detachable storehouse lid 10 of wide 0.5m, uses
Banketing in Yu Xiangcang, Tu Cang bottom uses bracket to support.One end of test Tu Cang is provided with movable door 11, and door is a diameter of
1.1m, is made up of the steel plate of thick 3cm, and center weld has two handles.Door can rotate around side hinge, opens and closes
Close, convenient unearthed and elastic liquid capsule 12 spoil disposal.
Fig. 4,5 it show cutter disc system of the present utility model.For reducing the friction between cutterhead and soil storehouse sidewall, at cutterhead and
Arranging between test soil storehouse that the roller bearing 14 of the diameter 2.5cm of about 100 carries out cutterhead supporting altogether, roller bearing 14 is embedded in test soil
In reserved draw-in groove in the bulkhead of storehouse 9, and it is coated with lubricant grease.The a diameter of 0.95m of shield cutter, aperture opening ratio is 30%, cutterhead face
Being disposed with 72 cutters on plate 13, arrange 12 cutters in each spoke front, each spoke back side arranges stirring rod, six spokes
The overall helically line rule of stirring rod 16 on bar is installed.At cutter head panel with empty between stirring rod 16 side and test soil storehouse
Between be dregs storehouse, dregs storehouse upper inside wall has a modifying agent inlet 17, convenient injects modifying agent in dregs storehouse.In order to measure slag
Soil pressure in soil storehouse, being provided with 6 ranges on dregs storehouse sidewall and centre position, bottom is 1MPa, and certainty of measurement is
The soil pressure sensor 28 of 0.001MPa, bottom, dregs storehouse arranges soil outlet, and soil outlet passes through flange 23 and soil output phase
Even.
Fig. 6,7 it show cutter-devices system, including cutter plate driver main shaft 18, gear 19, decelerator 21, drive motor
22.Cutter plate driver main shaft 18 is the cylindrical structural of diameter 20cm, and one end is affixed with cutterhead, one end and master gear 19 keyed jointing, main
Gear 19 is driven by two relative driving gears 20, drive gear 20 respectively with decelerator 21 and and driving motor 22
It is connected, drives motor 22 to be arranged on concrete pier base.
Fig. 8 show soil output structure chart, soil output include soil output shell 24, screw spindle 25,
Helical blade 26, spiral axis drive motor 27.Soil output is connected with dregs storehouse soil outlet by flange 23, and angle of inclination is
22 degree, middle part uses concrete buttress 30 to support.Soil output shell 24 is the steel cylinder of 1.5cm for thickness, and internal diameter is about
27cm, a diameter of 10cm of helical axis 25, helical blade 26 thickness is 1cm, is welded on screw spindle 25, and pitch is 24cm.And
Axially it is disposed with 4 soil pressure sensors 28 at helical axis and measures soil output along stroke pressure, go out earthenware end peace
Equipped with a torque sensor 29, measure helical axis moment of torsion.Helical axis is open-ended, for casting, and is furnished with corresponding dregs
Collection device 31.
When using this utility model device, operating procedure is as follows: first inject the mud of total measurement (volume) about 4/5 in slurry tank 4
Slurry；Open test soil storehouse activity door 11, three elastic liquid capsules 12 are mounted side by side in place, close door；Open test Tu Cang
Storehouse, top lid 10, loads soil storehouse 9 by test soil sample, and is compacted, until filling soil storehouse 9.Open air compressor machine 1, intrinsic pressure to slurry tank 4
Entering pressure-air, high-pressure slurry flows out and filling elasticity liquid capsule 12 from slurry tank 4, and elastic liquid capsule 12 expands, and promotes the soil body forward
Mobile, now, elastic liquid capsule 12 side is squeezed in movable door 11, and opposite side is squeezed in test soil sample.Open and drive motor
22, arranging cutterhead rotating speed by decelerator 21 is 5r/min, injects improvement by modifying agent inlet 17 in dregs storehouse simultaneously
Agent.When soil pressure sensor 28 soil pressure increases to certain value in dregs storehouse, open spiral axis drive motor 27, set spiral
Going out earthenware rotating speed is predetermined value, monitoring pressure distribution situation and change in torque situation.When amount of being unearthed in test reaches 0.9m3
Time (liquid capsule stroke about 1m), close air compressor machine 1, drive motor 22, when soil output is unearthed and is measured the least, close helical axis
Drive the residue soil body in motor 27, clearness test soil storehouse 9 and soil output shell 24.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of this utility model claims.
Claims (5)
1. one kind for simulate earth pressure balanced shield, EPBS construction sediment improvement assay device, it is characterised in that include compression system,
Test Tu Cang, cutter disc system, cutter-devices system and soil output；
Compression system include air compressor machine (1), appendix (2), slurry tank (4), dredging tube (7), pressure regulator valve (3), barometer (6),
Hydrostatic gauge (8), elastic liquid capsule (12)；Wherein, containing mud in slurry tank (4), slurry tank top connects pneumatics by appendix (2)
Machine (1), connects elastic liquid capsule (12) by dredging tube (7) bottom slurry tank；
Cutter disc system includes cutter head panel, cutter, stirring rod；Between cutter head panel and test soil storehouse, it is disposed with roller bearing (14) enter
Row cutterhead supports, and roller bearing (14) is embedded in the reserved draw-in groove in test Tu Cang (9) bulkhead；Cutter head panel (13) if on be provided with
Dry spoke, arranges cutter in each spoke front, and each spoke back side arranges stirring rod (16), the stirring rod at all spoke back sides
(16) overall helically line rule is installed；
Being dregs storehouse at cutter head panel with space between stirring rod (16) side and test soil storehouse, dregs storehouse upper inside wall has and changes
Good dose of inlet (17)；Dregs storehouse sidewall and centre position, bottom are installed soil pressure sensor (28)；
Described cutter-devices system includes cutter plate driver main shaft (18), gear (19), decelerator (21), drives motor (22)；
Soil output includes soil output shell (24), screw spindle (25), helical blade (26), spiral axis drive motor
(27)；Axially being disposed with soil pressure sensor at helical axis, measurement soil output, along stroke pressure, is going out earthenware end peace
Equipped with a torque sensor, measure helical axis moment of torsion.
Assay device the most according to claim 1, it is characterised in that described test Tu Cang (9) is a diameter 1m, vertical
To the tubular construction of a length of 2m, wall thickness 3cm, inner surface is smooth, has a long 0.5m at top, the detachable Cang Gai of wide 0.5m
(10), for banketing in storehouse, Tu Cang bottom uses bracket to support.
Assay device the most according to claim 2, it is characterised in that one end of test Tu Cang is provided with movable door
(11), a diameter of 1.1m of door, it to be made up of the steel plate of thick 3cm, center weld has two handles；Door can turn around side hinge
Dynamic, open and close, convenient unearthed and elastic liquid capsule (12) spoil disposal.
Assay device the most according to claim 1, it is characterised in that cutter plate driver main shaft (18) is the cylinder of diameter 20cm
Shape structure, one end is affixed with cutterhead, one end and master gear (19) keyed jointing, and master gear (19) passes through two relative driving gears
(20) it is driven, drives gear (20) to be connected with decelerator (21) and driving motor (22) respectively, drive motor (22) to install
On concrete pier base.
Assay device the most according to claim 1, it is characterised in that soil output is gone out with dregs storehouse by flange (23)
Tu Kou is connected, and angle of inclination is 22 degree, and middle part uses concrete buttress (30) to support；Soil output shell (24) is that thickness is
The steel cylinder of 1.5cm, internal diameter is 27cm, helical axis (25) a diameter of 10cm, and helical blade (26) thickness is 1cm, is welded on spiral
On main shaft (25), pitch is 24cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609581.3U CN205778880U (en) | 2016-06-17 | 2016-06-17 | A kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609581.3U CN205778880U (en) | 2016-06-17 | 2016-06-17 | A kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement |
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| Publication Number | Publication Date |
|---|---|
| CN205778880U true CN205778880U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620609581.3U Withdrawn - After Issue CN205778880U (en) | 2016-06-17 | 2016-06-17 | A kind of assay device for simulating earth pressure balanced shield, EPBS construction sediment improvement |
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| CN (1) | CN205778880U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952461A (en) * | 2016-06-17 | 2016-09-21 | 西南交通大学 | Testing apparatus and testing method for simulating improvement of residue earth during earth pressure balance shield construction |
| CN106948824A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of floating type shield machine sediment improvement medium conveying apparatus |
| CN108414259A (en) * | 2018-03-11 | 2018-08-17 | 北京工业大学 | A kind of earth pressure balanced shield, EPBS model assay systems of achievable cutterhead and lining cutting pressure monitoring function |
| CN108426988A (en) * | 2018-05-11 | 2018-08-21 | 洛阳理工学院 | A kind of novel earth pressure balanced sediment improvement testing stand |
| CN109448532A (en) * | 2018-11-06 | 2019-03-08 | 宁波大学 | Mechanical Method service channel development machine originates driving model test platform and its test method |
| CN109668747A (en) * | 2018-11-06 | 2019-04-23 | 宁波大学 | Mechanical Method service channel development machine receives model test platform and its test method |
| CN110017933A (en) * | 2019-05-20 | 2019-07-16 | 厦门厦工中铁重型机械有限公司 | A kind of soil pressure case more changing device |
| CN111255471A (en) * | 2020-01-15 | 2020-06-09 | 中南大学 | Multi-working-condition soil pressure balance shield muck workability test simulation test system |
| CN113240999A (en) * | 2021-06-22 | 2021-08-10 | 腾达建设集团股份有限公司 | Test device and test method for improving muck synchronously during shield tunneling and soil cutting |
-
2016
- 2016-06-17 CN CN201620609581.3U patent/CN205778880U/en not_active Withdrawn - After Issue
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952461A (en) * | 2016-06-17 | 2016-09-21 | 西南交通大学 | Testing apparatus and testing method for simulating improvement of residue earth during earth pressure balance shield construction |
| CN105952461B (en) * | 2016-06-17 | 2017-12-29 | 西南交通大学 | A kind of experimental rig and method for being used to simulate earth pressure balanced shield, EPBS construction sediment improvement |
| CN106948824A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of floating type shield machine sediment improvement medium conveying apparatus |
| CN108414259A (en) * | 2018-03-11 | 2018-08-17 | 北京工业大学 | A kind of earth pressure balanced shield, EPBS model assay systems of achievable cutterhead and lining cutting pressure monitoring function |
| CN108414259B (en) * | 2018-03-11 | 2020-02-11 | 北京工业大学 | Soil pressure balance shield model test system capable of realizing cutter head and lining pressure monitoring function |
| CN108426988A (en) * | 2018-05-11 | 2018-08-21 | 洛阳理工学院 | A kind of novel earth pressure balanced sediment improvement testing stand |
| CN109668747A (en) * | 2018-11-06 | 2019-04-23 | 宁波大学 | Mechanical Method service channel development machine receives model test platform and its test method |
| CN109448532A (en) * | 2018-11-06 | 2019-03-08 | 宁波大学 | Mechanical Method service channel development machine originates driving model test platform and its test method |
| CN110017933A (en) * | 2019-05-20 | 2019-07-16 | 厦门厦工中铁重型机械有限公司 | A kind of soil pressure case more changing device |
| CN110017933B (en) * | 2019-05-20 | 2024-02-06 | 厦门厦工中铁重型机械有限公司 | Soil pressure sensor changing device |
| CN111255471A (en) * | 2020-01-15 | 2020-06-09 | 中南大学 | Multi-working-condition soil pressure balance shield muck workability test simulation test system |
| CN113240999A (en) * | 2021-06-22 | 2021-08-10 | 腾达建设集团股份有限公司 | Test device and test method for improving muck synchronously during shield tunneling and soil cutting |
| CN113240999B (en) * | 2021-06-22 | 2023-03-14 | 腾达建设集团股份有限公司 | Test device and test method for improving muck synchronously during shield tunneling and soil cutting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20171229 |