CN110031324A - Duct pieces of shield tunnel seam waterproof performance test apparatus - Google Patents
Duct pieces of shield tunnel seam waterproof performance test apparatus Download PDFInfo
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- CN110031324A CN110031324A CN201910335700.9A CN201910335700A CN110031324A CN 110031324 A CN110031324 A CN 110031324A CN 201910335700 A CN201910335700 A CN 201910335700A CN 110031324 A CN110031324 A CN 110031324A
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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
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- 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
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Abstract
The present invention relates to a kind of duct pieces of shield tunnel seam waterproof performance test apparatus, including support frame, Longitudinal Joint between Segments assembly self-balanced loading device, section of jurisdiction circumferential weld assembly self-balanced loading device, outer test water pressure applying device and concrete lining pipe piece model, Longitudinal Joint between Segments assembly self-balanced loading device is to provide pulling force for Longitudinal Joint between Segments assembly simulation, including cylinder jack pedestal, cylinder jack to steel plate, linkage steel plate is drawn, cylinder jack bolt, ear shaped steel plate, stress steel pipe, groove, link steel plate connector, baffle and protrusive board；Section of jurisdiction circumferential weld assembly self-balanced loading device is to provide thrust, including cylinder jack counter-force pedestal, cylinder jack planker, firm banking, lower connection steel arm, upper connection steel arm for section of jurisdiction circumferential weld assembly simulation.Pipe sheet assembling simulation can be achieved in the present invention, shows the elastic rubber gasket complex work state met in Practical Project.
Description
Technical field
The invention belongs to shield tunnel project technical fields, and in particular to a kind of duct pieces of shield tunnel seam waterproof performance examination
Proved recipe method.
Background technique
With the propulsion and rapid development of economy of Process of Urbanization Construction process, the utilization of Underground Space Resource can be effective
The crises such as the city population, environment, the resource that face are solved, therefore develop the underground space and be increasingly becoming the mainstream of urban development
Gesture.It is developed so far for the first time using earth pressure balanced shield from Shanghai City Tunnel Engineering company in 1984 in China, using shield method
It builds tunnel and has gradually formed more mature structure Design and Calculation theory and engineering practice system in China, but in shield tunnel
Understanding in terms of waterproof still has deficiency, to tunnel water proofing attention degree also opposite shortcoming.In recent years, drawn by Tunnel Water Leakage
The underground engineering accident risen gradually increases, at the same percolating water to tunnel structure safety and tunnel operation security there are very big hidden danger,
Therefore waterproofing design should obtain enough attention during Tunnel Design.Shield tunnel waterproof be mainly lining segment structure from
Waterproof, bolt hole waterproof, waterproof at segment joint, wherein segments' joints waterproofing is waterproofing design emphasis.Therefore in tunnel water proofing
A large amount of segments' joints waterproofing test should be carried out in design to test segments' joints waterproofing performance, provided safely more for structure
It ensures.
In segments' joints waterproofing test, the main waterproof performance for verifying seam crossing elastic rubber gasket.In current state
Test in inseam waterproof test mostly using gasket in the case where two pieces of billets act on is mainstream, i.e., in the prefabricated seal groove of billet
Rubber gasket is pasted at place, by the mutual extrusion compressing rubber gasket of two pieces of billets, is inputted by the water hole on billet
Interior hydraulic pressure carries out the waterproof performance test of rubber gasket.But there are following deficiencies for existing experimental provision:
1. gasket is mainly pasted in concrete dense sealing groove in segments' joints waterproofing real work, above-mentioned test dress
It sets gasket to paste in steel seal groove, to cause gasket waterproof test structure, there are relatively large deviations；
2. above-mentioned test is only the test of elastic rubber gasket part waterproof performance, cannot simulate completely in full size lining tube
The complex work state of the gasket of piece seam crossing in practical projects；
3. above-mentioned test is using interior hydraulic pressure, and tunnel duct piece seam is mostly based on the outer hydraulic pressure of receiving.
For the deficiency of the above experimental rig, full size concrete pipe sheet seam waterproof testing experiment can be simulated by developing one kind
Device to shield tunnel lining segment seam waterproofing design engineering practical value with higher.
Summary of the invention
The object of the present invention is to provide one kind can overcome the shortcomings of above-mentioned experimental rig, can carry out large scale full size coagulation
The device of native segments' joints waterproofing test, the practical assembled process of analog full size concrete pipe sheet can be under pressure stabilizing state
The outer hydraulic pressure seam waterproof test of row, provides theoretical foundation for shield tunnel waterproofing design.In order to achieve the above objectives, the present invention uses
Technical solution be:
A kind of duct pieces of shield tunnel seam waterproof performance test apparatus, including the fixation section of jurisdiction support frame as load carrier
101 and removable section of jurisdiction support frame 102, Longitudinal Joint between Segments assembly self-balanced loading device 2, section of jurisdiction circumferential weld assembly self-balanced loading dress
3, outer test water pressure applying device 4 and concrete lining pipe piece model 5 are set,
Load carrier is to support concrete lining pipe piece model 5, fixed section of jurisdiction support frame 101 and the support of removable section of jurisdiction
Frame 102 is positioned opposite, includes combination steelframe 103, is fixed on and combines the curved plates supporting surface 104 of 103 upper surface of steelframe, consolidate
It is scheduled on the thin steel cushion cap 105 of level and lower end cushion cap 106 of combination 103 bottom of steelframe, in addition, removable section of jurisdiction support frame 102
It is additionally provided with level jack supporting table and inclination jack supporting table；
The concrete lining pipe piece model 5 includes 4 sections of jurisdiction, wherein 2 branch by fixed section of jurisdiction support frame 101
Support, other two support by removable section of jurisdiction support frame 102；
Longitudinal Joint between Segments assembly self-balanced loading device 2 is to provide pulling force, including oil cylinder thousand for Longitudinal Joint between Segments assembly simulation
Jin top pedestal 201, cylinder jack to draw steel plate 202, linkage steel plate 203, cylinder jack bolt 204, ear shaped steel plate 205,
Stress steel pipe 206, groove 207, linkage steel plate connector 208, baffle 213 and protrusive board 214；Cylinder jack is fixed on oil cylinder thousand
On the pedestal 201 of jin top, the cylinder jack other end is by the earcap of cylinder jack by cylinder jack bolt 204 and oil cylinder thousand
Jin top to draw steel plate 202 connect, cylinder jack to draw steel plate 202 on be fixed with ear shaped steel plate 205 with holes, cylinder jack
Earcap be placed between two blocks of ear shaped steel plates 205, bolt 204 inject ear shaped steel plate 205 on hole in；Two blocks of linkage steel plates 203
Between connected by the linkage steel plate connector 208 of TBE (threaded both ends), the steel that links be inserted at linkage 208 both ends of steel plate connector respectively
In threaded hole among the protrusive board 214 of plate 203；Stress steel pipe 206 runs through the preformed hole 501 of pipe of concrete on piece, stress steel pipe
206 place cylinder jack pedestal 201, cylinder jack to the groove 207 for drawing 202, two blocks of steel plate linkage steel plates 203 respectively
Interior, groove 207 is formed by side guard 213 on the upside of steel plate with protrusive board 214 or ear shaped steel plate 205 respectively, is provided with spiral shell on baffle 213
Wire hole, for passing through fastening screw and fastening stress steel pipe 206；
Section of jurisdiction circumferential weld assembly self-balanced loading device 3 is to provide thrust, including oil cylinder thousand for section of jurisdiction circumferential weld assembly simulation
Jin top counter-force pedestal 301, cylinder jack planker 302, firm banking 303, lower connection steel arm 304, upper connection steel arm 305, under
Connection steel arm 304 and upper connection steel arm 305 are made of two I-steel respectively, and two steel arm one end are fixed on firm banking 303
On edge, the other end is connect with cylinder jack counter-force pedestal 301, is fixed on counter-force pedestal 301 to support cylinder thousand
The planker 302 on jin top, firm banking 303 and cylinder jack are respectively held against on the outside of two pieces of sections of jurisdiction, are applied by cylinder jack
Thrust pushes section of jurisdiction closure；
Outer test water pressure applying device 4 includes band radian steel plate, and steel plate radian depends on section of jurisdiction model section of jurisdiction radian, is connected to
The circumferential weld and longitudinal joint intersection of section of jurisdiction model are fixed with the hydraulic pressure chamber lid plate 401 of protrusion among steel plate, are provided on cover board 401
Inlet opening 402, apopore 403 and external water pressure gauge hole 404, external water pressure gauge is for recording intracavitary water pressure.
Compared with prior art, the present invention having the following advantages and beneficial effects:
1. can realize that pipe sheet assembling is simulated using self-balancing type loading device, the elastic rubber met in Practical Project is showed
Glue gasket complex work state；
2. full size concrete pipe sheet waterproof performance testing experiment, the test number obtained using experimental rig of the present invention can be carried out
According to relatively reliable；
3. self-balancing principle is made full use of to design loading device, simplicity of the present invention is embodied, improves large-sized model test efficiency.
Detailed description of the invention
Fig. 1 is full size shield tunnel lining segment seam water resistance test schematic device of the present invention
Figure label explanation: the fixed section of jurisdiction support frame of 101-；102- moves section of jurisdiction support frame；103- combines steelframe；
104- curved plates supporting surface；The horizontal thin steel cushion cap of 105-；；The lower end 106- cushion cap；107- level jack supporting table；108- inclines
Oblique jack supporting table；2- Longitudinal Joint between Segments assembly self-balanced loading device；201- cylinder jack pedestal；202- cylinder jack
To drawing steel plate；204- cylinder jack bolt；The section of jurisdiction 3- circumferential weld assembly self-balanced loading device；301- cylinder jack counter-force bottom
Seat；303- firm banking；Steel arm is connected on 305-；The outer test water pressure applying device of 4-；401- hydraulic pressure chamber lid plate；The inlet opening 402-；
405- adjustable bolt hole；5- concrete lining pipe piece model；501- preformed hole；502- prepared screw-bolt hole；503- reserves spiral shell
Keyhole.
Fig. 2 is experimental rig support frame schematic diagram of the present invention
Figure label explanation: the fixed section of jurisdiction support frame of 101-；102- moves section of jurisdiction support frame；103- combines steelframe；
104- curved plates supporting surface；The horizontal thin steel cushion cap of 105-；；The lower end 106- cushion cap；107- level jack supporting table；108- inclines
Oblique jack supporting table.
Fig. 3 is circumferential weld assembly self-balanced loading schematic device in experimental rig section of jurisdiction of the present invention
Figure label explanation: 201- cylinder jack pedestal；202- cylinder jack is to drawing steel plate；203- linkage steel plate；
204- cylinder jack bolt；205- ear shaped steel plate；206- stress steel pipe；207- groove；208- linkage steel plate connector；209-
Threaded hole；210- fastening screw；211- screw hole；212- screw hole；213- baffle；214- protrusive board.
Fig. 4 is experimental rig Longitudinal Joint between Segments assembly self-balanced loading schematic device of the present invention
Figure label explanation: 301- cylinder jack counter-force pedestal；302- cylinder jack planker；303- firm banking；
Steel arm is connected under 304-；Steel arm is connected on 305-；306- bolt hole；307- bolt hole.
The outer test water pressure applying device schematic diagram of the position Fig. 5 experimental rig of the present invention
Figure label explanation: 401- hydraulic pressure chamber lid plate；The inlet opening 402-；403- apopore；The external water pressure gauge hole 404-；
405- adjustable bolt hole.
Specific embodiment
The invention patent is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the technology of the present invention
Implemented premised on scheme, the detailed implementation method and specific operation process are given, but the protection model of the invention patent
It encloses and is not limited to the following embodiments.
Now in conjunction with above-mentioned each attached drawing example, the present invention is further explained.
As shown in Figure 1, duct pieces of shield tunnel seam waterproof performance testing equipment of the present invention, is mainly used for full size writing brush piece mould
Type elastic rubber gasket water resistance test, this testing equipment under seam difference joint open, faulting of slab ends amount composite condition include:
Fixed section of jurisdiction support frame 101；Removable section of jurisdiction support frame 102；Combine steelframe 103；Curved plates supporting surface 104；Horizontal thin steel
Cushion cap 105；Lower end cushion cap 106；Level jack supporting table 107；Tilt jack supporting table 108；Longitudinal Joint between Segments assembly is certainly flat
Weigh loading device 2；Cylinder jack pedestal 201；Cylinder jack is to drawing steel plate 202；Cylinder jack bolt 204；Section of jurisdiction ring
Stitch assembled self-balanced loading device 3；Cylinder jack counter-force pedestal；Firm banking 303；Upper connection steel arm 305；Outer hydraulic pressure applies
Device 4；Hydraulic pressure chamber lid plate 401；Inlet opening 402；Adjustable bolt hole 405；Concrete lining pipe piece model 5；Preformed hole
501；Prepared screw-bolt hole 502；Prepared screw-bolt hole 503.
It is complete that fixed section of jurisdiction support frame 101, the removable support of section of jurisdiction support frame 102 undertake loading device, hydraulic devices, section of jurisdiction
Portion's weight；Longitudinal Joint between Segments assembly self-balanced loading device 2 is Longitudinal Joint between Segments closure force pulling force；Section of jurisdiction circumferential weld assembly self-balancing adds
It carries and sets 3 as section of jurisdiction circumferential weld closure application thrust；Outer 4 bit test model seam of test water pressure applying device provides water pressure；Concrete
Lining segment model 5 is prefabricated full size concrete pipe sheet model, and preformed hole 501 can indulge section of jurisdiction through anchor ring inside and outside section of jurisdiction
It stitches the stress steel pipe 206 (see Fig. 3) on assembled self-balanced loading device 2 and is inserted into preformed hole 501, can pass through after loading device force
Stress steel pipe 206 drives section of jurisdiction closure, and prepared screw-bolt hole 502 is used for fixed outer test water pressure applying device 4 when circumferential weld waterproof test, in advance
Fixed outer test water pressure applying device 4 when staying bolt hole 503 for longitudinal joint waterproof test.
Equipment load carrier, loading device, hydraulic devices are discussed in detail by Fig. 2~Fig. 5.
Fig. 2 is the load carrier of testing equipment, including fixed section of jurisdiction support frame 101；Removable section of jurisdiction support frame 102；Group
Close steelframe 103；Curved plates supporting surface 104；Horizontal thin steel cushion cap 105；Lower end cushion cap 106；Level jack supporting table 107；
Tilt jack supporting table 108.Horizontal thin steel cushion cap 105 is fixed on ground, and combination steelframe 103 welds shape by I-steel and channel steel
At a combination thereof form can be designed adjustment according to section of jurisdiction and loading device weight, and combination steelframe 103 is welded on two pieces of parallel waters
It puts down on thin steel cushion cap 105, welds two pieces of curved plates supporting surfaces 104 on combination steelframe, which will bear concrete lining
The most of volume of section of jurisdiction model 5 is built, to prevent section of jurisdiction from sliding and the damage of section of jurisdiction lower end surface, in horizontal thin 105 outer end of steel cushion cap
Weld inclined lower end cushion cap 106.Fixed section of jurisdiction support frame 101 and removable section of jurisdiction support frame 102 are essentially symmetrical structure, only
One difference is that the welding on combination steelframe of removable section of jurisdiction support frame 102 has 5 ° of level jack supporting table 107, horizontal
Small jack is placed in jack supporting table 107 and inclination jack supporting table 108, is applied by small jack pair section of jurisdiction model
Thrust raises section of jurisdiction model and forms section of jurisdiction faulting of slab ends.Fixed section of jurisdiction support frame 101 and removable 102 common combination of section of jurisdiction support frame
Forming apparatus load carrier 1, one group of production production can carry out the seam test of section of jurisdiction " one " word, and two groups of production can carry out " one " word seam simultaneously
Test and the seam test of " ten " word.
As shown in figure 3, being Longitudinal Joint between Segments assembly self-balanced loading device 2 of the present invention, comprising: cylinder jack pedestal 201；
Cylinder jack is to drawing steel plate 202；Link steel plate 203；Cylinder jack bolt 204；Ear shaped steel plate 205；Stress steel pipe 206；
Groove 207；Link steel plate connector 208；Threaded hole 209；Fastening screw 210；Screw hole 211；Screw hole 212；Baffle 213；It is convex
Plate 214.The pulling force that the cylinder jack on Longitudinal Joint between Segments assembly self-balanced loading device 2 provides through the invention is so that section of jurisdiction is vertical
Seam closure, cylinder jack are fixed on cylinder jack pedestal 201 by bolt and screw hole 212, the cylinder jack other end
Drawing steel plate 202 is connected by cylinder jack bolt 204 and cylinder jack by the earcap of cylinder jack, cylinder jack
Ear shaped steel plate 205 with holes is welded on steel plate 202 to drawing, the earcap of cylinder jack is placed between two blocks of ear shaped steel plates 205, is inserted
Pin 204 injects in the hole on ear shaped steel plate 205.It is connected between two blocks of linkage steel plates 203 by the linkage steel plate of TBE (threaded both ends)
Part 208 connects, and linkage 208 both ends of steel plate connector are inserted into respectively in the threaded hole 209 on linkage steel plate 203 among protrusive board 214.
Stress steel pipe 206 runs through concrete pipe sheet preformed hole 501 (see Fig. 1), and stress steel pipe 206 is placed cylinder jack pedestal respectively
201, cylinder jack is in the groove 207 drawn on 202, two blocks of steel plate linkage steel plates 203, and groove 207 is respectively by the upside of steel plate
Side guard 213 and the formation of protrusive board 214 or ear shaped steel plate 205, screw hole 211 is provided on baffle 213, fastening screw 210 is twisted
Stress steel pipe 206 can be fastened by entering in screw hole 211, prevent stress steel pipe 206 from sliding.The stress process of the present apparatus are as follows: oil cylinder
Jack applies pulling force and drives cylinder jack pedestal 201 and cylinder jack to drawing 202 relative motion of steel plate, two blocks of steel plates pair
Stress steel pipe 206 exerts a force, and then drives section of jurisdiction closure, and two blocks of linkage steel plates 203 can be kept away by the linkage connection of steel plate connector 208
Excessive damage, which is opened, from 206 lower end of power steel pipe reserves bore edges concrete.
See that Fig. 4, section of jurisdiction circumferential weld assembly self-balanced loading device 3 are dragged by cylinder jack counter-force pedestal 301, cylinder jack
Plate 302, firm banking 303, lower connection steel arm 304, upper connection steel arm 305 composition.Steel arm 304,305 is connected respectively by two works
Word steel composition, steel arm one end is welded on 303 edge of firm banking, when test, by lower connection steel arm 304 from side through being inserted into
It combines in steelframe 103 (see Fig. 1), for upper connection steel arm on the model outer ring surface of section of jurisdiction, steel arm other end bolt passes through bolt hole
307 connect with cylinder jack counter-force pedestal 301.Cylinder jack can be fixed by bolt hole 306, oil cylinder is horizontal when in use
It places, it is bolt strained excessive to avoid, one piece of 302 support cylinder jack of planker is welded on pedestal 301.Firm banking 303
It is respectively held against on the outside of two pieces of sections of jurisdiction with cylinder jack, thrust is applied by cylinder jack and pushes section of jurisdiction closure.It controls very heavy
Jacking force size can control segment joint joint open size.
Referring to Fig. 5, outer test water pressure applying device 4 is band radian steel plate, and steel plate radian can individually be set according to test section of jurisdiction radian
Meter.For the controllability for meeting bolt hole position, adjustable bolt hole 405 is set in steel plate two sides, in adjustable bolt
One piece of bloom with holes is placed on hole 405 and hole is directed at section of jurisdiction preformed hole 502,503 (see Fig. 1), and tightening bolt can be by the dress
It sets and is fixed on section of jurisdiction.It is one block of raised hydraulic pressure chamber lid plate 401 among steel plate, inlet opening 402 is provided on cover board 401, is gone out
Water hole 403, external water pressure gauge hole 404, exchange can be adjusted in the function in 3 holes on cover board, and inlet opening inputs water with pressure, water outlet
Hole excludes hydraulic pressure chamber air, and water pressure gauge can record intracavitary water pressure.
After deploying experimental rig, test method is as follows:
1) rubber gasket of waterproof performance to be verified is pasted in the seal groove of precast concrete section of jurisdiction, stands 24 hours
It is tested after waiting sealant solidification；
2) concrete pipe sheet is hung on support frame by crane, it is horizontal very heavy on removable section of jurisdiction support frame by adjusting
Small jack pair section of jurisdiction on top support platform applies thrust, adjusts segment joint faulting of slab ends amount, tests default faulting of slab ends amount to reach；
3) each component of Longitudinal Joint between Segments assembly self-balanced loading device is sling respectively and is reserved in Longitudinal Joint between Segments by crane
It is installed at hole, after being installed, pulling force is applied to two pieces of sections of jurisdiction are drawn, until reaching default seam by cylinder jack
Stop load when opening amount, subsequent Longitudinal Joint between Segments water resistance test is carried out in pressure stabilizing；
4) the cylinder jack counter-force pedestal of section of jurisdiction circumferential weld self-balanced loading device is unloaded, by crane by section of jurisdiction circumferential weld
Self-balanced loading device remainder is sling, and lower connection steel arm is penetrated in combination steelframe, upper connection steel arm is attached to section of jurisdiction outer ring
On face, oil cylinder is fixed on cylinder jack counter-force pedestal, counter-force pedestal is sling and passes through bolt and is fixed with steel arm is connect,
Applying thrust by oil cylinder makes two pieces of section of jurisdiction closures, until stopping load when reaching default seam joint open, in pressure stabilizing
Carry out subsequent section of jurisdiction circumferential weld water resistance test；
5) under section of jurisdiction pressure stabilizing state, adhesive waterproof coil is pasted along segment joint direction, outer test water pressure applying device is pacified
Waterproof roll at dress reserves some holes, to facilitate hydraulic pressure that can be applied in segment joint, pastes one again on waterproof roll
Layer silica gel plate serves levelling, and aperture is applied to hydraulic pressure in segment joint on silica gel plate, and outer hydraulic pressure is applied dress
It sets and is bolted onto section of jurisdiction preformed hole, tighten bolt to prevent hydraulic pressure shakiness；
6) inlet opening on outer water test unit connects water inlet pipe, and apopore connects outlet pipe, and water pressure gauge hole is screwed on
Threaded water pressure gauge observes hydraulic pressure value in hydraulic pressure storehouse by water pressure gauge, opens water inlet valve and applies hydraulic pressure, opens water outlet pipe valve
Door discharge hydraulic pressure chamber air closes water outlet tube valve after outlet pipe water outlet, increases hydraulic pressure, every increase with 0.1MPa magnitude
0.1MPa hydraulic pressure cover board water inlet valve, pressure stabilizing 60 minutes or more, if segment joint leaks, water pressure gauge showed water at this time
Pressure value is the hydraulic pressure that joint open is preset in section of jurisdiction, faulting of slab ends amount can bear, and otherwise continues pressurization until segment joint leaks；
7) all loading devices are unloaded, position occurs for observation leakage to study segments' joints waterproofing inefficacy mechanism, record pipe
Hydraulic pressure meter reading when piece seam leaks tests segments' joints waterproofing performance.
Claims (1)
1. a kind of duct pieces of shield tunnel seam waterproof performance test apparatus, including the fixation section of jurisdiction support frame as load carrier
(101) and removable section of jurisdiction support frame (102), Longitudinal Joint between Segments assembly self-balanced loading device (2), section of jurisdiction circumferential weld assembly self-balancing
Loading device (3), outer test water pressure applying device (4) and concrete lining pipe piece model (5),
Load carrier is to support concrete lining pipe piece model (5), fixed section of jurisdiction support frame (101) and removable section of jurisdiction support
Frame (102) is positioned opposite, includes combination steelframe (103), the curved plates supporting surface for being fixed on combination steelframe (103) upper surface
(104), it is fixed on the thin steel cushion cap (105) of level and lower end cushion cap (106) of combination steelframe (103) bottom, in addition, removable
Section of jurisdiction support frame (102) is additionally provided with level jack supporting table and inclination jack supporting table；
The concrete lining pipe piece model (5) includes four sections of jurisdiction, branch of the two of them by fixed section of jurisdiction support frame (101)
Support, other two support by removable section of jurisdiction support frame (102)；
Longitudinal Joint between Segments assembly self-balanced loading device (2) provides pulling force to simulate for Longitudinal Joint between Segments assembly, including oil cylinder is very heavy
Pedestal (201), cylinder jack are pushed up to drawing steel plate (202), linkage steel plate (203), cylinder jack bolt (204), ear shaped steel
Plate (205), stress steel pipe (206), groove (207), linkage steel plate connector (208), baffle (213) and protrusive board (214)；Oil cylinder
Jack is fixed on cylinder jack pedestal (201), and the cylinder jack other end is by the earcap of cylinder jack by oil cylinder
To drawing steel plate (202) connection, cylinder jack is fixed with to drawing on steel plate (202) for jack bolt (204) and cylinder jack
Ear shaped steel plate (205) with holes, the earcap of cylinder jack are placed between two pieces of ear shaped steel plates (205), and bolt (204) injects ear
In hole on shape steel plate (205)；Pass through the linkage steel plate connector (208) of TBE (threaded both ends) between two pieces of linkages steel plate (203)
Connection, linkage steel plate connector (208) both ends are inserted into respectively in the threaded hole among the protrusive board (214) of linkage steel plate (203)；By
Power steel pipe (206) runs through the preformed hole (501) of pipe of concrete on piece, and stress steel pipe (206) places cylinder jack pedestal respectively
(201), cylinder jack to draw steel plate (202), two pieces linkage steel plate (203) groove (207) in, groove (207) respectively by
Side guard (213) and protrusive board (214) or ear shaped steel plate (205) formation, are provided with screw hole on baffle (213), use on the upside of steel plate
In by fastening screw and fastening stress steel pipe (206)；
Section of jurisdiction circumferential weld assembly self-balanced loading device (3) provides thrust to simulate for section of jurisdiction circumferential weld assembly, including oil cylinder is very heavy
Push up counter-force pedestal (301), cylinder jack planker (302), firm banking (303), lower connection steel arm (304), upper connection steel arm
(305), lower connection steel arm (304) and upper connection steel arm (305) are made of two I-steel respectively, and two steel arm one end are fixed on
On firm banking (303) edge, the other end is connect with cylinder jack counter-force pedestal (301), fixed on counter-force pedestal (301)
There is the planker (302) to support cylinder jack, firm banking (303) and cylinder jack are respectively held against outside two pieces of sections of jurisdiction
Side applies thrust by cylinder jack and pushes section of jurisdiction closure；
Outer test water pressure applying device (4) includes band radian steel plate, and steel plate radian depends on section of jurisdiction model section of jurisdiction radian, is connected to pipe
The circumferential weld and longitudinal joint intersection of piece model, are fixed with the hydraulic pressure chamber lid plate (401) of protrusion among steel plate, and cover board is opened on (401)
There are inlet opening (402), apopore (403) and external water pressure gauge hole (404), external water pressure gauge is for recording intracavitary water pressure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910335700.9A CN110031324B (en) | 2019-04-24 | 2019-04-24 | Shield tunnel segment joint waterproof performance test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910335700.9A CN110031324B (en) | 2019-04-24 | 2019-04-24 | Shield tunnel segment joint waterproof performance test device |
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| CN110031324A true CN110031324A (en) | 2019-07-19 |
| CN110031324B CN110031324B (en) | 2020-05-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967177A (en) * | 2019-12-30 | 2020-04-07 | 盾构及掘进技术国家重点实验室 | Prototype experimental device for single duct piece of low-vacuum tunnel |
| CN113959856A (en) * | 2021-10-25 | 2022-01-21 | 福州大学 | Test device for simulating longitudinal bending resistance of shield tunnel |
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