CN109387435A - A kind of tunnel distribution of water pressure rule model test apparatus - Google Patents
A kind of tunnel distribution of water pressure rule model test apparatus Download PDFInfo
- Publication number
- CN109387435A CN109387435A CN201811220209.3A CN201811220209A CN109387435A CN 109387435 A CN109387435 A CN 109387435A CN 201811220209 A CN201811220209 A CN 201811220209A CN 109387435 A CN109387435 A CN 109387435A
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- water
- tunnel
- chamber
- liner
- header tank
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/0242—With circulation of a fluid
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of tunnel distribution of water pressure rule model test apparatus, and providing one kind can study under different underground water flow regimes, and the bath scaled model experimental device of the pore water pressure regularity of distribution is born in tunnel-liner.The device includes chamber, water system and drainage system.Chamber includes cabinet, tunnel-liner and intake-outlet；Water system includes header tank, variable frequency pump and water segregator.Drainage system includes draining blind pipe and gutter.Intake-outlet setting is equally spaced between tunnel two sides, water inlet, is welded on the outside of water inlet with water valve, controls water inlet flow by water valve.Tunnel-liner is to simulate actual tunnel-liner.Header tank is responsible for recycling the underground water of tunnel drainage system discharge, while providing water source for chamber.Variable frequency pump is placed in header tank, and underground water is pumped at water segregator, then underground water is pumped to chamber intake-outlet respectively by water segregator.
Description
Technical field
The present apparatus is suitable for verifying tunnel tunnel-liner water pressure experimental rig, belongs to Tunnel Engineering field.
Background technique
Tunnel waterproof and water drainage system is divided into Three models, complete anti-aqueous mode, full discharging mode and controlled drainage mode.Tunnel is anti-
The many factors such as the groundwater pressure for needing comprehensive consideration lining cutting that may bear when Water drainage system design and environmental protection.When to lining
Design can be overly conservative when block water pressure calculation is excessive, causes the waste of material in building course.When to water pressure calculation deficiency
Shi Zehui generates great security risk.However the measurement result of lining cutting behind water pressure is shown in Practical Project, water pressure
The regularity of distribution and do not meet its theoretical value.Very big difficulty is caused to the design of tunnel waterproof and water drainage system.
Summary of the invention
The present invention in view of the above-mentioned problems, providing one kind can study under different underground water flow regimes, hold by tunnel-liner
By the bath scaled model experimental device of the pore water pressure regularity of distribution.
In order to solve the above technical problems, present invention employs following technical proposals:
A kind of tunnel distribution of water pressure rule model test apparatus, including chamber, water system and drainage system.
Chamber includes cabinet 1, tunnel-liner 2 and intake-outlet 3；Cabinet 1 is welded by stainless-steel sheet, cabinet 1
Bottom center be welded with semi-circular sheet steel, semi-circular sheet steel is to simulate true tunnel-liner 2.The surrounding of cabinet 1 is reserved
There is intake-outlet 3, changes the water (flow) direction in cabinet 1 by adjusting the disengaging water state of different intake-outlets, thus mould
Intend different Groundwater Flow states.Drain hole 4 is reserved in tunnel-liner 2, drainage system is arranged underground water by drain hole 4
Tunnel out.
Water system includes header tank 5, variable frequency pump 6 and water segregator 7, and header tank 5 is welded by stainless-steel sheet, collection
Underground water of the water tank 5 to recycle drainage system discharge.Underground water is pumped into water segregator 7 by variable frequency pump 6, and is underground water
Certain head is provided.Water segregator 7 is connect with the interface for being responsible for water inlet in intake-outlet 3, provides water source for chamber.
Drainage system includes draining blind pipe 8 and gutter 9.Draining blind pipe 8 is connect with drain hole 4, drains blind pipe 8 for ground
It is lauched and drains into gutter 9.Gutter 9 is to import header tank 5 for underground water.
Detailed description of the invention
Fig. 1 is this experimental rig entirety installation diagram；
Fig. 2 is the positive schematic diagram of chamber；
Fig. 3 is header tank schematic diagram；
In figure: 1- test box body, 2- tunnel-liner, 3- intake-outlet, 4- drain hole, 5- header tank, 6- variable frequency pump,
7- water segregator, 8- drain blind pipe, 9- gutter.
Specific embodiment
The installation steps of this experimental rig are described further with reference to the accompanying drawing.
Test box body 1 is welded by eight blocks of steel plates, and front and rear sides steel plate determines tunnel upper half circular arc, and serves as a contrast with tunnel
2 are built to be welded.Chamber bottom is arranged steelframe and supports, and chamber height is made to be higher than header tank 5.
The setting of intake-outlet 3 is equally spaced between tunnel two sides, water inlet, is welded on the outside of water inlet with water valve, is led to
Cross water valve control water inlet flow.
Drain hole is arranged on five sections of tunnel-liner 2 respectively to simulate actual tunnel-liner in tunnel-liner 2
4.Drain hole 4 is arranged 30 °, 60 °, 90 °, 120 ° and 150 ° positions in each section.Ball valve, control draining are connected outside drain hole 4
Node.
Header tank 5 is responsible for the underground water of recycling tunnel drainage system discharge, while providing water source for chamber.Variable frequency pump
6 are placed in header tank 5, and underground water is pumped at water segregator 7, then underground water is pumped to chamber respectively by water segregator 7
Intake-outlet 3.
Drainage system is made of draining blind pipe 8 and gutter 9.Draining blind pipe is responsible for the cabinet by underground water from chamber
It is discharged in 1, gutter 9 is responsible for importing underground water in header tank 5, ultimately forms recycling for underground water.
Experimental rig operating procedure is as follows:
Step 1, pipeline connection, water inlet are connect with water segregator, water outlet pipeline is connect with header tank 5.It is fixed simultaneously
Tunnel drainage system；
Step 2, the filling of country rock material, soil body layering are filled into chamber, every layer height 10cm, and according to place height
Spend embedded sensor.The soil body passes through hammer ram hand compaction after tamping, and every layer is rammed three times；
Step 3, the saturation soil body, keep water inlet valve unimpeded, close scupper valve, open water pump and adjust water pump and raise
Journey closes drainage system water valve up to the soil body is saturated after underground water after drainage system outflow；
Step 4 opens discharge outlet water valve, opens drainage system valve, the correlations such as measurement sensor after waiting seepage stability
Data；
Step 5 adjusts water inlet and water outlet respectively, changes the flow direction of underground water, and repeats step 3 operation；
Step 6 adjusts variable frequency pump lift, and repeats step 3- step；.
Claims (7)
1. a kind of tunnel distribution of water pressure rule model test apparatus, it is characterised in that: including chamber, water system and draining
System；Chamber includes cabinet (1), tunnel-liner (2) and intake-outlet (3)；By adjusting the disengaging of different intake-outlets
Water state changes the water (flow) direction in cabinet (1), to simulate different Groundwater Flow states；
Water system includes header tank (5), variable frequency pump (6) and water segregator (7)；
Drainage system includes draining blind pipe (8) and gutter (9)；Draining blind pipe (8) is connect with drain hole (4), drains blind pipe
(8) underground water is drained into gutter (9)；Gutter (9) is to import header tank (5) for underground water.
2. a kind of tunnel distribution of water pressure rule model test apparatus according to claim 1, it is characterised in that: chamber
Cabinet (1) is welded by eight blocks of steel plates, and front and rear sides steel plate determines tunnel upper half circular arc, and is welded with tunnel-liner (2)
It connects；Chamber bottom is arranged steelframe and supports, and chamber height is made to be higher than header tank (5).
3. a kind of tunnel distribution of water pressure rule model test apparatus according to claim 1, it is characterised in that: Inlet and outlet water
Mouthful (3) setting is equally spaced between tunnel two sides, water inlet, is welded on the outside of water inlet with water valve, by water valve control into
Mouth of a river flow.
4. a kind of tunnel distribution of water pressure rule model test apparatus according to claim 1, it is characterised in that: tunnel lining
(2) are built to simulate actual tunnel-liner, drain hole (4) are set on five sections of tunnel-liner (2) respectively；It is each to cut
Drain hole (4) are arranged 30 °, 60 °, 90 °, 120 ° and 150 ° positions in face；Drain hole (4) connects ball valve, control draining node outside.
5. a kind of tunnel distribution of water pressure rule model test apparatus according to claim 1, it is characterised in that: header tank
(5) it is responsible for the underground water of recycling tunnel drainage system discharge, while provides water source for chamber；Variable frequency pump (6) is placed on collection
In water tank (5), underground water is pumped at water segregator (7), then underground water is pumped to respectively by chamber disengaging by water segregator (7)
The mouth of a river (3).
6. a kind of tunnel distribution of water pressure rule model test apparatus according to claim 1, it is characterised in that: draining system
System is made of draining blind pipe (8) and gutter (9)；Draining blind pipe is responsible for the discharge from the cabinet (1) of chamber by underground water,
Gutter (9) is responsible for importing underground water in header tank (5), ultimately forms recycling for underground water.
7. a kind of tunnel distribution of water pressure rule model test apparatus according to claim 1, it is characterised in that: test dress
It is as follows to set operating procedure:
Step 1, pipeline connection, water inlet are connect with water segregator, water outlet pipeline is connect with header tank (5)；Fixed tunnel simultaneously
Road drainage system；
Step 2, the filling of country rock material, soil body layering are filled into chamber, every layer height 10cm, and are buried according to place height
If sensor；The soil body passes through hammer ram hand compaction after tamping, and every layer is rammed three times；
Step 3, the saturation soil body, keep water inlet valve unimpeded, close scupper valve, open water pump and adjust pump head,
Drainage system water valve is closed after drainage system outflow up to the soil body is saturated after underground water；
Step 4 opens discharge outlet water valve, opens drainage system valve, the related datas such as measurement sensor after waiting seepage stability；
Step 5 adjusts water inlet and water outlet respectively, changes the flow direction of underground water, and repeats step 3 operation；
Step 6 adjusts variable frequency pump lift, and repeats step 3- step 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220209.3A CN109387435A (en) | 2018-10-19 | 2018-10-19 | A kind of tunnel distribution of water pressure rule model test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220209.3A CN109387435A (en) | 2018-10-19 | 2018-10-19 | A kind of tunnel distribution of water pressure rule model test apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN109387435A true CN109387435A (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811220209.3A Pending CN109387435A (en) | 2018-10-19 | 2018-10-19 | A kind of tunnel distribution of water pressure rule model test apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975047A (en) * | 2019-03-18 | 2019-07-05 | 中铁第四勘察设计院集团有限公司 | Tunnel drainage blind pipe blocking mechanism model test apparatus and its test method |
| CN111103225A (en) * | 2020-01-23 | 2020-05-05 | 中铁第四勘察设计院集团有限公司 | Tunnel geotextile physical clogging measuring device and method |
| CN111257191A (en) * | 2020-01-23 | 2020-06-09 | 中铁第四勘察设计院集团有限公司 | Chemical clogging measurement method for geotextile |
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| CN201225934Y (en) * | 2008-07-22 | 2009-04-22 | 西南交通大学 | Hydraulic prototype experiment apparatus for underwater shield tunnel construction model |
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2018
- 2018-10-19 CN CN201811220209.3A patent/CN109387435A/en active Pending
Patent Citations (6)
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| CN201225934Y (en) * | 2008-07-22 | 2009-04-22 | 西南交通大学 | Hydraulic prototype experiment apparatus for underwater shield tunnel construction model |
| CN101832140B (en) * | 2010-04-20 | 2012-07-18 | 北京交通大学 | Testing method of water pressure distribution law of subsea tunnel lining |
| KR101426465B1 (en) * | 2014-04-24 | 2014-08-05 | 이정테크(주) | Waterproof seat for tunnel and waterproof tunnel protecting process using the same |
| CN106989999A (en) * | 2017-05-15 | 2017-07-28 | 中铁隧道集团有限公司 | A kind of tunnel water pressure intelligent control test device |
| CN107036955A (en) * | 2017-06-09 | 2017-08-11 | 北京工业大学 | The model test apparatus of simulation tunnel single shell lining entirety waterproof and water drainage system performance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975047A (en) * | 2019-03-18 | 2019-07-05 | 中铁第四勘察设计院集团有限公司 | Tunnel drainage blind pipe blocking mechanism model test apparatus and its test method |
| CN111103225A (en) * | 2020-01-23 | 2020-05-05 | 中铁第四勘察设计院集团有限公司 | Tunnel geotextile physical clogging measuring device and method |
| CN111257191A (en) * | 2020-01-23 | 2020-06-09 | 中铁第四勘察设计院集团有限公司 | Chemical clogging measurement method for geotextile |
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Application publication date: 20190226 |