CN105738145B - The coefficient shield tunnel leak test system of elastic sealing gasket, soil, water - Google Patents
The coefficient shield tunnel leak test system of elastic sealing gasket, soil, water Download PDFInfo
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- CN105738145B CN105738145B CN201610229164.0A CN201610229164A CN105738145B CN 105738145 B CN105738145 B CN 105738145B CN 201610229164 A CN201610229164 A CN 201610229164A CN 105738145 B CN105738145 B CN 105738145B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to a kind of elastic sealing gasket, soil, the coefficient shield tunnel leak test system of water, including air pump system, master trip system, pressurised water tank system and data collecting system, master trip system includes the master trip case of bottom opening；The top of master trip case is provided with top pressure closure, and detachable pressurised airbag is connected on head cover and is fixed with precise pressure regulating valve and digital display manometer；The lower part of master trip case is soil body container, and is provided with miniature ventage piezometer and miniature earth pressure gauge；The bottom of master trip case is tightly connected with two pieces of adjustable bottom plates of L-type by master trip lower box part elastic sealing gasket and L-type bottom plate elastic sealing gasket, it is connected by leading screw between two pieces of adjustable bottom plates of L-type, it is provided with groove in two pieces of adjustable bottom plates of L-type, for fixing L-type bottom plate elastic sealing gasket.The present invention have the advantages that make experiment have Consideration more comprehensively, controllability it is strong.
Description
Technical field
The present invention relates to a kind of elastic sealing gasket, soil, the coefficient shield tunnel leak test systems of water, can be used for ground
Lower engineering field duct pieces of shield tunnel leakage, soil body erosion, the simulation of leak sand leakage.
Background technology
Shield tunnel is usually to be formed by many water-tight concrete pipe sheet assemblings, and waterproof is carried out using rubber gasket, but
Due to the factors such as the differential settlement in tunnel, construction method be improper so that during constructing tunnel and operation, be easy to happen
Local leak even sand leakage phenomenon, deals with improperly, will form disaster, causes huge environment influence and economic loss, such as
The accidents such as No. four Sankt Peterburg No.1 line, Shanghai Underground lines.Tunnel leak, erosion and leak sand leakage Frequent Accidents, therefore to it
Progress mechanism study, forecast analysis are particularly significant.
Traditional research technique and method is only limited to test the water resistance of section of jurisdiction elastic sealing gasket, such as
《The 4th part of high polymer waterproof material：Shield tunnel section of jurisdiction rubber gasket》It is sharp described in (GB 18173.4-2010)
With simulation section of jurisdiction T-shape and " one " type assembly seam waterproof test, either《Technical code for water proof in underground engineering》It is carried
The test method arrived cannot all carry out the correlation test research of the soil erosion under hazardous condition.
There are the following problems for existing research.First, segment joint leakage be water, soil, elastic sealing gasket collective effect as a result,
Soil particle can influence elastic sealing gasket water resistance between being clipped in gasket, and existing test method can not analyze the influence；Secondly,
Soil particle is as the soil body is lost in the erosion generated after can not considering leakage；Finally, further development will lead to seam to leakage
Locate leak sand leakage, soil body large deformation caused by leak sand leakage there is no ripe testing equipment.
Based on the above situation, it is necessary to which researching and developing a kind of synthesis can reflect that shield elastic sealing gasket, sand, water three make jointly
Leak test system provides prediction to meet the needs of in engineering and scientific research for the development of disaster.
Invention content
The present invention provides a kind of elastic sealing gasket, soil, water to solve technical problem present in known technology and makees jointly
Shield tunnel leak test system, can overcome the defect of conventional tunnel leak test method, make experiment have consider because
Element more comprehensively, the strong advantage of controllability.Technical scheme is as follows：
A kind of elastic sealing gasket, soil, the coefficient shield tunnel leak test system of water, including it is air pump system (1), main
Pilot system (2), pressurised water tank system (3) and data collecting system (4), it is characterised in that：
The master trip case for the bottom opening that the master trip system (2) includes holder (32), is fixed on holder (32)
(17)；The top of master trip case (17) is provided with top pressure closure (16), and detachable pressurised airbag (23) is connected on head cover and is fixed
There are a precise pressure regulating valve (13) and digital display manometer (12), precise pressure regulating valve (13) is connected to the air pump system (1) and removable
Between unloading pressurised airbag (23), the air pressure for controlling detachable pressurised airbag (23), digital display manometer (12) is for controlling, showing
Show the atmospheric pressure value of detachable pressurised airbag (23)；Master trip case (17) is additionally provided with Water filling valve (19) and deflation valve (14)；
The lower part of master trip case (17) is soil body container, and is provided with miniature ventage piezometer (22) and miniature earth pressure gauge
(21)；The signal of the two acquisition is admitted to data collecting system (4)；
The bottom of master trip case (17) passes through master trip lower box part elastic sealing gasket (28) with two pieces of adjustable bottom plates of L-type (26)
It is tightly connected, is connected by leading screw (27) between two pieces of adjustable bottom plates of L-type (26), two with L-type bottom plate elastic sealing gasket (29)
Block L-type is adjustable, and bottom plate (26) is provided with groove, for fixing L-type bottom plate elastic sealing gasket (29)；
It is the leak sand leakage measuring instrument for accepting and measuring the soil sample and water leaked down in the lower section of master trip case (17)
(36)。
The invention has the advantages and positive effects that：Pilot system can simulate influence of the leakage for the soil body, simultaneously
Consider influence of the soil particle for elastic sealing gasket, and can be used for analyzing water, soil, elastic sealing gasket three effect machine
Reason is particularly good at the development of deformation and erosion problem of soil body when analyzing processing leakage gradually develops；Air pump system, pressurised water tank system
System and leading screw may be implemented to accurately control experiment.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the master trip system three-dimensional cutaway view of the present invention；
Fig. 3 is the master trip case three-dimensional cutaway view of the present invention；
Fig. 4 is the adjustable bottom plate dimensional structure diagram of L-type of the present invention；
Fig. 5 is master trip lower box part elastic sealing gasket and the signal of lower L-type bottom plate elastic sealing gasket stereochemical structure of the present invention
Figure.
In figure：1, air pump system；2, master trip system；3, pressurised water tank system；4, data collecting system；5, water tank；6、
Inlet valve；7, water outlet；8, outlet valve；9, Acquisition Instrument；10, data analysis system；11, display；12, digital display manometer；13、
Precise pressure regulating valve；14, deflation valve；15, top cover plate bolt；16, top cover board；17, master trip case；18, observation window；19、
Water filling valve；20, rectangular O-ring seal；21, miniature earth pressure gauge；22, miniature ventage piezometer；23, detachably pressurize gas
Capsule；24, soil sample；25, inlet valve；26, the adjustable bottom plate of L-type；27, leading screw；28, master trip lower box part elastic sealing gasket；29, L-type
Bottom plate elastic sealing gasket；30, bed bolt；31, frame upper bolt；32, holder；33, bearing chassis；34, holder lower part spiral shell
Bolt；35, bearing idler wheel；36, leak sand leakage measuring instrument.
Specific implementation mode
To further appreciate that the invention, features and effects of the present invention, the following examples are hereby given, and coordinates attached drawing detailed
Carefully it is described as follows：
Please refer to Fig.1~Fig. 5, elastic sealing gasket of the invention, soil, water coefficient shield tunnel leak test system
System, including air pump system 1, master trip system 2, pressurised water tank system 3, data collecting system 4；Air pump system 1 and master trip system
System 2 is connected by flexible pneumatic hose；Pressurised water tank system 3 is located at the specified height and position needed for experiment, pressurised water tank system
System 3 is connect with master trip system 2 by water pipe；Data collecting system 4 is connect with master trip system 2 by data conductor.
The master trip system include digital display manometer 12, precise pressure regulating valve 13, deflation valve 14, top cover board 16,
Top cover plate bolt 15, Water filling valve 19, master trip case 17, detachable pressurised airbag 23, inlet valve 25, miniature earth pressure gauge
21, miniature ventage piezometer 22, observation window 18, L-type is adjustable bottom plate 26, bed bolt 30, leading screw 27, master trip lower box part elasticity
Gasket 28, L-type bottom plate elastic sealing gasket 29, holder 32, frame upper bolt 31, holder lower bolt 34, bearing chassis 33,
Bearing idler wheel 35, leak sand leakage measuring instrument 24；Digital display manometer 12 is connected by flexible pneumatic hose with air pump system 1, number
Aobvious pressure gauge 12 is connected to the upper end of precise pressure regulating valve 13, and 13 lower end of precise pressure regulating valve is fixed on top cover board 16 and is connected to
The detachable pressurised airbag 23 being fixed on top cover board 16, deflation valve 14 and Water filling valve 19 are fixed on top cover board 16
On, top cover board 16 is connect with master trip case 17 by top cover plate bolt 15, the U between top cover board 16 and master trip case 17
It is rectangular O-ring seal 20 in shape slot, main viewfinder 18 is fixed on by the sealing of plastic-steel mud on master trip case 17, miniature pore water pressure
It counts 22 and miniature earth pressure gauge 21 is affixed on 17 back side inner wall of master trip case and adjustable 26 plate upper surface of left side L-type, conducting wire pass through
Seal draws and is connected with data collecting instrument 9, and 25 one end of inlet valve is located at 17 side wall of master trip case, 25 other end of inlet valve
It is connected with pressurised water tank system 3 by water pipe, inlet valve 25 has both the function of overflow pipe, two pieces of lower part L-type is adjustable bottom plate 26
It is connected by bed bolt 30 with master trip case 17, has L-type in U-lag between the adjustable bottom plate 26 of L-type and master trip case 17
Bottom plate elastic sealing gasket 29 and master trip lower box part elastic sealing gasket 28 are connected by leading screw 27 between two pieces of L-types are adjustable bottom plate 26
It connects, master trip case 17 is connected by frame upper bolt 31 with holder 32, and holder 32 passes through holder lower bolt 34 and bearing
Chassis 33 is connected, and bearing idler wheel 35 is fixed on bearing chassis 33；Leak sand leakage measuring instrument 36 is located at two pieces of adjustable bottom plates of L-type
Between 26 below gap, leak sand leakage measuring instrument 36 is combined by identical transparent organic glass slot.
Top cover board 16 seals master trip case 17 by rectangular O-ring seal 20, and L-type is adjustable, and bottom plate 26 is divided to is two pieces, both
17 bottom of master trip case can be sealed, and section of jurisdiction elastic sealing gasket can be simulated, seam joint open size can also be adjusted；It is special
Detachable pressurised airbag 23 can convert air pressure to the soil pressure for acting on soil body surface；Make leak sand leakage measuring instrument 36 by oneself in bottom
Sand leakage in different time, water leakage can be obtained.
Pressurised water tank system includes inlet valve 6, water tank 5, water outlet 7 and outlet valve 8；Tank intake valve of water 6 is located at 5 side of water tank
At wall, outlet valve 8 is located at 5 bottom of water tank, and outlet valve 8 is connect with master trip system 2 by water pipe.
Data collecting system includes data collecting instrument 9, data analysis system 10, display 11；Acquisition Instrument 9 and master trip system
System 2 is connected by data conductor, and Acquisition Instrument 9 is connect with data analysis system 10 by data conductor, data analysis system 10 and
Display 11 is connected by data conductor.
Now to simulate around duct pieces of shield tunnel seam for the experiment of sandy soils erodsion loss, illustrate that the present invention's is specific
Using process, specific implementation step is as follows：
(1) after pilot system is assembled according to attached drawing, at the adjustable bottom plate of L-type 26 leading screw 27 is adjusted, makes two pieces of L-types can
It adjusts the slit width between bottom plate 26 to reach theoretically minimum joint open, then tightens bed bolt 30 so that L-type is adjustable bottom plate 26
It is fixed up position；
(2) soil sample 24 of shield tunnel present position is packed into master trip case 17, soil sample 24 is taken layering to load and pressed
It is real, it is filled at 2/3 graduation mark inside master trip case 17；
(3) the top cover board 16 for having connected detachable pressurised airbag 23 is closed, tightens top cover plate bolt 15, and beat
Data collecting system 4 is opened, preparation starts to acquire test data；
(4) air pump system 1 is opened, by top precise pressure regulating valve 13 to the detachable pressurised airbag in the inside of master trip system 2
23 apply air pressure, and air bag acts on soil body surface, apply soil pressure for soil sample；
(5) leading screw 27 is utilized to adjust the slit width of the adjustable bottom plate of two pieces of L-types 26 to predetermined slit width；
(6) pressurised water tank system 3 is adjusted to predetermined altitude, opens the outlet valve 8 and master trip system of pressurised water tank system
Inlet valve 25；
(7) water is flowed out from seam crossing, drives soil particle around seam that erodsion loss occurs, to measure certain Seepage flow time
The corresponding erodsion loss amount of different hydraulic pressure (flow), terminates experiment.
Although a certain embodiment of the present invention is described above in conjunction with attached drawing, the present invention is not limited to
Above-mentioned specific implementation mode, the above mentioned embodiment is only schematical, is not limitation, this field it is general
Logical technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, goes back
Many forms can be made, within these are all belonged to the scope of protection of the present invention.
Claims (1)
1. the coefficient shield tunnel leak test system of a kind of elastic sealing gasket, soil, water, including air pump system (1), main examination
Check system (2), pressurised water tank system (3) and data collecting system (4), it is characterised in that：
The master trip case (17) for the bottom opening that the master trip system (2) includes holder (32), is fixed on holder (32)；
The top of master trip case (17) is provided with top pressure closure (16), and detachable pressurised airbag (23) is connected on head cover and is fixed with precision
Pressure regulator valve (13) and digital display manometer (12), precise pressure regulating valve (13) are connected to the air pump system (1) and detachable pressurization
Between air bag (23), the air pressure for controlling detachable pressurised airbag (23), digital display manometer (12) for control, show it is removable
Unload the atmospheric pressure value of pressurised airbag (23)；Master trip case (17) is additionally provided with Water filling valve (19) and deflation valve (14)；
The bottom of master trip case (17) passes through master trip lower box part elastic sealing gasket (28) and L with two pieces of adjustable bottom plates of L-type (26)
Type bottom plate elastic sealing gasket (29) is tightly connected, and is connected by leading screw (27) between two pieces of adjustable bottom plates of L-type (26), in two pieces of L
Type is adjustable, and bottom plate (26) is provided with groove, for fixing L-type bottom plate elastic sealing gasket (29)；
The lower part of master trip case (17) is soil body container, and is provided with miniature ventage piezometer (22) and miniature earth pressure gauge
(21)；The signal of the two acquisition is admitted to data collecting system (4)；
It is the leak sand leakage measuring instrument (36) for accepting and measuring the soil sample and water leaked down in the lower section of master trip case (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229164.0A CN105738145B (en) | 2016-04-12 | 2016-04-12 | The coefficient shield tunnel leak test system of elastic sealing gasket, soil, water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229164.0A CN105738145B (en) | 2016-04-12 | 2016-04-12 | The coefficient shield tunnel leak test system of elastic sealing gasket, soil, water |
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| CN105738145A CN105738145A (en) | 2016-07-06 |
| CN105738145B true CN105738145B (en) | 2018-10-02 |
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| CN106289829B (en) * | 2016-07-25 | 2018-10-26 | 同济大学 | A kind of small-sized TBM Tunnel Gushings model test model casing |
| CN111122337B (en) * | 2020-01-07 | 2021-03-19 | 河海大学 | Segment soil pressure model test device and method considering shield tail wall post-grouting influence |
| CN112881166B (en) * | 2021-01-29 | 2022-07-05 | 山东大学 | Device and method for testing stability of foundation in mining overall process and mining subsidence area |
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| CN101710019B (en) * | 2009-12-10 | 2011-04-27 | 同济大学 | Water leakage simulating and measuring system of tunnel in centrifugal field |
| CN101900642B (en) * | 2010-04-27 | 2012-01-11 | 西安理工大学 | Physical model test device and method for ground fissure earth tunnel |
| CN104075854B (en) * | 2014-06-30 | 2017-02-15 | 中南大学 | Shield segment joint anti-penetrability performance test device |
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