CN110176176A - The shield driving Stratum Loss simulator and method of more storehouse cellular-type water pocket drainings - Google Patents
The shield driving Stratum Loss simulator and method of more storehouse cellular-type water pocket drainings Download PDFInfo
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- CN110176176A CN110176176A CN201910419469.1A CN201910419469A CN110176176A CN 110176176 A CN110176176 A CN 110176176A CN 201910419469 A CN201910419469 A CN 201910419469A CN 110176176 A CN110176176 A CN 110176176A
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- water pocket
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
Abstract
The present invention relates to the shield driving Stratum Loss simulators and method of the draining of more storehouse cellular-type water pockets, device includes the model test soil case of upper end opening, horizontal model shield is set in model test soil case, stratum soil is filled up in the model test soil case outside model shield；Water pocket is arranged in ring week to model shield outer wall along longitudinal direction, and water pocket is along the circumferential direction separated into several relatively independent warehouses；Each water pocket warehouse is designed with an independent scupper hose, and water pocket warehouse is accessed in scupper hose one end, and the other end passes through in the measuring cup outside model test soil case reserving hole access amount model test soil case, and Stratum Loss size is realized by control water pocket displacement.The present invention has the advantages such as simple, vdiverse in function, the at low cost and simple process of experimental provision, new thought and test method can be provided for shield driving Stratum Loss mechanism under all kinds of operating conditions and displacement law research, to ensure that Shield Construction Method Used safety and safety of surrounding environment provide technical support.
Description
Technical field
The invention belongs to underground engineering technical fields, and in particular to a kind of shield driving of more storehouse cellular-type water pockets draining
Layer loss simulator and method.
Background technique
With the rapid development of economy, making full use of subterranean resource is city for guidance Urban Reasonable layout and orderly development
City's development provides wide wider space, and the underground space gradually develops to great burying, large space direction in recent years, all kinds of complexity rings
Short distance crossing project under border continues to bring out, and constrains the development and utilization of urban underground space to a certain extent.With
The continuous development of shield technique, at present restrict versatility development a big factor be shield driving Stratum Loss and its reply
Measure.Under certain operating conditions, or even become the governing factor for restricting shield method and underground space development, even results in underground
Space can not implement.
Whether shield driving Stratum Loss mechanism is reasonable with Bit andits control measure, is directly related to engineering itself and peripheral ring
Border safety, project cost, Stratum Loss and deformation measure are not in place, it will cause huge security risk and investment waste.
Summary of the invention
The object of the present invention is to provide a kind of shield driving Stratum Loss simulator of more storehouse cellular-type water pockets draining and
Model shield is arranged in model test soil case in method, on the water pocket that the more storehouses of model shield circumferential directions separate, water pocket edge
Specific spacing setting is longitudinally pressed in tunnel, and model shield surrounding is filled the model test foundation soil (stratum) coincideing with undisturbed soil, led to
The discharge of liquid in the water pocket of excessive storehouse, to the shield in the case of shield tunnel circumferencial direction any part, any ground loss ratio
Driving operating condition is simulated, and the influence and its counter-measure of ground loss ratio in the case of typical condition and typical stratum are specified.
The technical scheme adopted by the invention is as follows:
The shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings, it is characterised in that:
Model test soil case including upper end opening, is provided with horizontal model shield in model test soil case, outside model shield
Model test soil case in fill up stratum soil；
Water pocket is arranged ring week in model shield outer wall along longitudinal direction, simulated formation loss in test, if water pocket is along the circumferential direction separated into
Dry relatively independent warehouse；
Water pocket uses bag transfusion system, including liquid bag and liquid in-out hose, each water pocket warehouse to be designed with an independent disengaging
The liquid in-out hose of water pocket warehouse is accessed in liquid hose and scupper hose, scupper hose one end, and the other end passes through model test soil case
Reserving hole access model is tested in the measuring cup outside native case.
Stratum soil surface in model test soil case is provided with differential type digital display displacement meter, and multiple depths are set in the soil of stratum
It is equipped with differential type digital display displacement meter and inclinometer.
Flow regulator is installed, Stratum Loss size controls water pocket displacement reality by flow regulator on scupper hose
It is existing.
Water-filled water pocket pastes model shield outer wall by binder.
Model test soil case includes the body structure of the model base of bottom and the model side wall composition upper end opening of periphery.
The fixed vertical bar of model shield is provided between model shield bottom and model base；
The fixed cross bar of model shield is provided between model shield both lateral sides and model side wall.
A before model side wall and side is made of transparent toughened glass, and other two side and model base use
Steel plate production.
Model shield simulates tunnel lining structure using steel pipe, fixes and uses Q235H fashioned iron with cross bar and vertical bar, wherein
Cross bar both ends are respectively welded in model test soil case side steel plate and model shield haunch, and vertical bar both ends are respectively welded in model
It tests native bottom seat steel plate and model shield encircles bottom.
The shield driving Stratum Loss analogy method of more storehouse cellular-type water pocket drainings, it is characterised in that:
The following steps are included:
Step 1: native case is tested using model base and model side wall composition model；
Step 2: the fixed model in model test soil case is fixed with cross bar using the fixed vertical bar of model shield and model shield
Shield；
Step 3: the water pocket that will be filled with water securely pastes model shield outer wall by binder, and the scupper hose other end passes through
In measuring cup outside model test soil case reserving hole access amount model test soil case, Stratum Loss size passes through control water pocket draining
Amount is realized；
Step 4: configuring stratum soil as required, prepares model test foundation soil by sand rain method, placement in layers thickness is not more than
10cm, while after the completion of the preparation of model foundation soil, Free water is injected in model test soil box top, until stratum soil phreatic table
Reach design requirement to wait 24~36h after the completion of the test soil body fills, can be tested after soil is consolidated after stratum；
Step 5: differential type digital display displacement meter is arranged in soil body surface, and arranges deep layer differential type in the soil depth bounds of stratum
Digital display displacement meter and inclinometer, and connect with displacement digital display instrument, change in displacement and ground settlement become in ground during record test
Shape situation；
Step 6: along shield tunnel tunneling direction, more storehouses is separated into the water in water pocket and are adjusted by the respective flow of manual control
The water in water pocket is successively discharged in device, and will calculate Stratum Loss in discharge water access measuring cup；
Step 7: in water pocket drainage procedure, displacement data in earth's surface and ground is recorded by displacement digital display instrument, shield of analyzing and researching
The influence and Stratum Loss of Stratum Loss size, Stratum Loss position and edpth of tunnel to ground settlement be in the earth formation after driving
Pass through mechanism.
The invention has the following advantages that
The present invention provides a kind of novel shield tunnel Stratum Loss simulators.The model base that model test soil case is related to
Normal welding can be used with side wall or be bolted processing, tempered glass and ribbed steel holes drilled through are bolted, nut lock
Tightly.Cross bar and vertical bar use normal welding to the fixation of model shield, and related equipment and other auxiliary equipment are routine
Mechanical equipment, model test soil case, model shield, pumping equipment, model foundation soil (stratum) etc. are all conventional materials, and steel plate is adopted
With Q235 steel, model side wall front and one side use transparent toughened glass, and model clay (stratum) is using showing by screening
The field soil body, the differential type digital display displacement of stratum deformation monitoring are calculated as conventional measuring device.
More storehouse cellular-type water pockets drain shield driving Stratum Loss simulator, can be directed to any portion of tunnel circumferencial direction
Position, any ground loss ratio are tested with the shield driving Stratum Loss situation under all kinds of formation conditions, are efficiently solved often
Rule test can only be simulated for the loss of tunnel vault regional stratum, can not be embodied under actual requirement of engineering, especially tunnel
The Stratum Loss situation of half section is conducive to react shield driving risk under complex working condition more fully hereinafter, is conducive to sandhog
The guarantee of journey inherently safe and safety of surrounding environment.
More storehouse cellular-type water pocket drainage systems, can be according to formation characteristics and Practical Project situation, to water pocket volume and arrangement
It is adjusted flexibly, and then meets the needs of all kinds of engineerings.The present invention has high economic benefit and social benefit, in city
Have wide practical use in the construction of underground structures such as rail traffic, municipal road, civil buildings.
Detailed description of the invention
Fig. 1 is model shield and water pocket distribution situation.
Fig. 2 is model shield and model test soil case cross-sectional view.
Fig. 3 is model shield and model test soil case skiagraph.
In figure, 1- model base, 2- model side wall, 3- displacement digital display instrument, 4- model shield, the fixed cross of 5- model shield
Bar, the fixed vertical bar of 6- model shield, 7- water pocket, 8- scupper hose, the stratum 9- soil, 10- measuring cup, 11- flow regulator.
Specific embodiment
The present invention will be described in detail With reference to embodiment.
The present invention relates to a kind of shield driving Stratum Loss simulators of more storehouse cellular-type water pocket drainings, including closed
Model test soil case is provided with horizontal model shield 4 in model test soil case, in the model test soil case outside model shield 4
Fill up stratum soil 9.4 outer wall of model shield is provided with water pocket 7 ring week along longitudinal direction, and water pocket 7 is along the circumferential direction separated into several phases
To independent warehouse.Water pocket 7 securely pastes 4 outer wall of model shield using binder, and water pocket 7 uses bag transfusion system, including
Liquid bag and liquid in-out hose, each 7 warehouse of water pocket are designed with an independent liquid in-out hose and scupper hose 8, scupper hose 8
The liquid in-out hose of 7 warehouse of water pocket is accessed in one end, and the other end passes through model test soil case reserving hole access model and tests native case
In outer measuring cup 10.
Native 9 surfaces in stratum in model test soil case are provided with differential type digital display displacement meter, multiple depths in stratum soil 9
It is provided with differential type digital display displacement meter and inclinometer.These displacement measurement systems are connect by lead with displacement digital display instrument 3, are recorded
Displacement data in earth's surface and ground in 7 drainage procedure of water pocket.
The water being bound in more storehouses separation water pocket 7 of 4 outer wall of model shield passes through the respective flow regulator of manual control
The water in water pocket 7 is successively discharged, and Stratum Loss will be calculated in the measuring cup 10 being discharged outside the native case of water access model test.
Model test soil case includes the cabinet knot that the model base 1 of bottom and the model side wall 2 of periphery form upper end opening
Structure.The fixed vertical bar 6 of model shield is provided between 4 bottom of model shield and model base 1；4 both lateral sides of model shield with
The fixed cross bar 5 of model shield is provided between model side wall 2.
Wherein a surface model side wall 2 uses tempered glass transparent material, remaining model side wall 2 and model base 1 use
Q235 steel plate materials；Tempered glass and ribbed steel holes drilled through, are bolted, nut check.
Model shield 4 simulates tunnel lining structure using steel pipe, fixes and uses Q235H fashioned iron with cross bar 5 and vertical bar 6,
Wherein 5 both ends of cross bar are respectively welded in model test soil case side steel plate 2 and 4 haunch of model shield, and 6 both ends of vertical bar are welded respectively
It is connected to model test soil bottom seat steel plate 1 and model shield 4 encircles bottom.
The shield driving Stratum Loss analogy method for more storehouse cellular-type water pockets draining that the above-mentioned apparatus structure of technology carries out, packet
Include following steps:
Step 1: native case is tested using model base 1 and 2 composition model of model side wall；
Step 2: it is fixed with cross bar 5 in model test soil case with vertical bar 6 and model shield apart from mould using model shield is fixed
Fixed model shield 4 at 1 certain altitude of type pedestal；
Step 3: the water pocket 7 that will be filled with water is lashed to 4 outer wall of model shield by latex cushion rubber, and 8 other end of scupper hose passes through
In measuring cup 10 outside model test soil case tempered glass reserving hole access amount model test soil case, Stratum Loss size passes through control
7 displacement of water pocket processed is realized.
Step 4: configuring stratum soil 9 as required, prepares model test foundation soil by sand rain method, placement in layers thickness is not
Greater than 10cm, while after the completion of the preparation of model foundation soil, Free water is injected in model test soil box top, until stratum soil 9
Phreatic table reaches design requirement and waits 24~36h after the test soil body fills completion, carries out to stratum soil 9 a degree of solid
It can be tested after knot.
Step 5: differential type digital display displacement meter is arranged in soil body surface, and arrangement deep layer is poor in native 9 depth bounds in stratum
Dynamic formula digital display displacement meter and inclinometer, and connect with displacement digital display instrument 3, change in displacement and earth's surface are heavy in ground during record test
Deformation drops；
Step 6: along shield tunnel tunneling direction, more storehouses is separated into the water in water pocket 7 and are adjusted by the respective flow of manual control
The water in water pocket 7 is successively discharged in device 11, and will calculate Stratum Loss in discharge water access measuring cup 10.；
Step 7: in 7 drainage procedure of water pocket, displacement data in earth's surface and ground is recorded by displacement digital display instrument 3, shield of analyzing and researching
The influence and Stratum Loss to ground settlement such as Stratum Loss size, Stratum Loss position and edpth of tunnel are on stratum after structure driving
In pass through mechanism.
The present invention has many advantages, such as that model is simple, succinctly easily make, installation cost is cheap and can realize multi-state simulation.Divide storehouse
It arranges, can be adjusted flexibly according to shield driving operating condition and formation condition, it can be achieved that shield tunnel between the volume and ring longitudinal direction of water pocket
Shield driving Work condition analogue in the case of circumferencial direction any part, any ground loss ratio, the potential difference being set in soil layer are dynamic
Formula digital display moves the formation displacement or deformation rule under the recordable corresponding all kinds of operating conditions of meter, and then is Stratum Loss engineering risk and wind
Dangerous treatment measures provide foundation.
The contents of the present invention are not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And to any equivalent transformation that technical solution of the present invention is taken, all are covered by the claims of the invention.
Claims (9)
- The shield driving Stratum Loss simulator of the cellular-type water pocket of storehouse more than 1. draining, it is characterised in that:Model test soil case including upper end opening is provided with horizontal model shield (4), model shield in model test soil case (4) it is native (9) that stratum is filled up in model test soil case outside；Water pocket (7) are arranged in ring week to model shield (4) outer wall along longitudinal direction, and simulated formation loss in test, water pocket (7) is along the circumferential direction It is separated into several relatively independent warehouses；Water pocket (7) uses bag transfusion system, including liquid bag and liquid in-out hose, each water pocket (7) warehouse to be designed with an independence Liquid in-out hose and scupper hose (8), scupper hose (8) one end accesses the liquid in-out hose of water pocket (7) warehouse, and the other end wears It crosses in the measuring cup (10) that model test soil case reserving hole access model is tested outside native case.
- 2. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 1, feature It is:Native (9) surface in stratum in model test soil case is provided with differential type digital display displacement meter, multiple depths in stratum soil (9) It is provided with differential type digital display displacement meter and inclinometer.
- 3. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 2, feature It is:It is equipped on scupper hose (8) flow regulator (11), Stratum Loss size controls water pocket by flow regulator (11) (7) displacement is realized.
- 4. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 3, feature It is:Water-filled water pocket (7) pastes model shield (4) outer wall by binder.
- 5. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 4, feature It is:Model test soil case includes the cabinet knot of the model base (1) of bottom and model side wall (2) the composition upper end opening of periphery Structure.
- 6. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 5, feature It is:The fixed vertical bar of model shield (6) is provided between model shield (4) bottom and model base (1)；The fixed cross bar of model shield (5) is provided between model shield (4) both lateral sides and model side wall (2).
- 7. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 6, feature It is:Before model side wall (2) and side is made of transparent toughened glass, and other two side and model base (1) are adopted It is made of steel plate.
- 8. the shield driving Stratum Loss simulator of more storehouse cellular-type water pocket drainings according to claim 7, feature It is:Model shield (4) simulates tunnel lining structure using steel pipe, fixes and uses Q235H type with cross bar (5) and vertical bar (6) Steel, wherein cross bar (5) both ends are respectively welded in model test soil case side steel plate (2) and model shield (4) haunch, and vertical bar (6) both ends are respectively welded in model test soil bottom seat steel plate (1) and model shield (4) arch bottom.
- The shield driving Stratum Loss analogy method of the cellular-type water pocket of storehouse more than 9. draining, it is characterised in that:The following steps are included:Step 1: native case is tested using model base (1) and model side wall (2) composition model；Step 2: solid in model test soil case using the fixed vertical bar of model shield (6) and the fixed cross bar of model shield (5) Determine model shield (4)；Step 3: the water pocket (7) that will be filled with water securely pastes model shield (4) outer wall by binder, and scupper hose (8) is another One end passes through in the measuring cup (10) outside model test soil case reserving hole access amount model test soil case, and Stratum Loss size passes through Water pocket (7) displacement is controlled to realize；Step 4: configuring stratum soil (9) as required, prepares model test foundation soil by sand rain method, placement in layers thickness is little In 10cm, while after the completion of the preparation of model foundation soil, Free water is injected in model test soil box top, until stratum is native (9) Phreatic table reaches design requirement, after the completion of the test soil body fills, waits 24~36h, can be into after stratum native (9) are consolidated Row test；Step 5: differential type digital display displacement meter is arranged in soil body surface, and arrangement deep layer is differential in native (9) depth bounds in stratum Formula digital display displacement meter and inclinometer, and connect with displacement digital display instrument (3), change in displacement and earth's surface are heavy in ground during record test Deformation drops；Step 6: along shield tunnel tunneling direction, more storehouses is separated into the water in water pocket (7) and pass through the respective flow tune of manual control The water that device (11) are successively discharged in water pocket (7) is saved, and Stratum Loss will be calculated in discharge water access measuring cup (10)；Step 7: in water pocket (7) drainage procedure, displacement data in earth's surface and ground is recorded by displacement digital display instrument (3), analysis is ground The influence and Stratum Loss of Stratum Loss size, Stratum Loss position and edpth of tunnel to ground settlement are on ground after studying carefully shield driving Pass through mechanism in layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419469.1A CN110176176A (en) | 2019-05-20 | 2019-05-20 | The shield driving Stratum Loss simulator and method of more storehouse cellular-type water pocket drainings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419469.1A CN110176176A (en) | 2019-05-20 | 2019-05-20 | The shield driving Stratum Loss simulator and method of more storehouse cellular-type water pocket drainings |
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| CN110176176A true CN110176176A (en) | 2019-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206932A (en) * | 2020-01-07 | 2020-05-29 | 哈尔滨工业大学 | Simulation device and method for site disturbance of shield construction |
-
2019
- 2019-05-20 CN CN201910419469.1A patent/CN110176176A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206932A (en) * | 2020-01-07 | 2020-05-29 | 哈尔滨工业大学 | Simulation device and method for site disturbance of shield construction |
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