CN109900559A - Test experimental provision and experimental method that deformation joint buried water strip bears hydraulic pressure - Google Patents
Test experimental provision and experimental method that deformation joint buried water strip bears hydraulic pressure Download PDFInfo
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- CN109900559A CN109900559A CN201910350957.1A CN201910350957A CN109900559A CN 109900559 A CN109900559 A CN 109900559A CN 201910350957 A CN201910350957 A CN 201910350957A CN 109900559 A CN109900559 A CN 109900559A
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- 238000005520 cutting process Methods 0.000 claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 claims description 134
- 239000010959 steel Substances 0.000 claims description 134
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- 238000007789 sealing Methods 0.000 claims description 11
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- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
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- 201000004569 Blindness Diseases 0.000 description 1
- 206010065433 Ligament rupture Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
The present invention provides experimental provisions and experimental method that a kind of test deformation joint buried water strip bears hydraulic pressure, belong to measurement the field of test technology.It solves the problems, such as that the experimental method of existing test deformation joint buried water strip receiving hydraulic pressure waterstop seam in pressurization can take the lead in destroying.The present invention includes lining cutting and the jointed seal ring of tool that is surrounded by rectangle waterstop, seal ring is set in lining cutting between two parties, the axial length of seal ring is less than the height of lining cutting, it is equipped at the 1/2 of lining cutting height by the outwardly extending deformation joint of seal ring outer radial, the seam of seal ring is located remotely from the side of deformation joint, the inside of seal ring is equipped with the pressure-applying unit for pressurizeing to seal ring far from the side of seam, and pressure-applying unit is oppositely arranged with deformation joint.The present invention can effectively prevent waterstop weak spot and take the lead in destroying, and has many advantages, such as that reasonable in design, experiment effect is good, has a wide range of application.
Description
Technical field
The invention belongs to measure the field of test technology, it is related to a kind of experiment of test deformation joint buried water strip receiving hydraulic pressure
Device and experimental method.
Background technique
With economic continuous development, mountain tunnel is built in more and more cities, and mountain tunnel passes through the rich waters such as solution cavity
When regional, it is most likely that the situation of high hydraulic pressure is faced, wherein the deformation joint of many mountain tunnels all uses buried water strip waterproof.
Since there is no the methods for testing waterstop highest waterproof strength at present, cause great trouble for design and construction, tunnel
The design tool of waterproof bears the character of much blindness.
For this purpose, Chinese patent discloses a kind of watertight test method [Shen of the deformation joint buried water strip equidimension limit
Please publication No. be CN107576574A], including steel tightening latch, waterstop, foam, steel plate, steel pipe, sealing steel disc, steel cushion block, upper steel
Plate, construction joint, lower steel plate, circular steel plate and waterstop seam, it welds upper steel plate and lower steel plate plate by four steel cushion blocks
At one piece, an osculum is opened on upper semi-circle, fine steel tube and upper round plate are welded together at osculum；One is covered around it
Circular waterstop bonds together in interface, keeps its waterproof；Casting concrete positions waterstop, casting concrete
Closed hollow structure is formed, uses foam as packing material when pouring, forms it into deformation joint；It is pressurizeed step by step with force (forcing) pump,
When observing that sealing is reduced with water exudation or concrete cracking or pressure gauge, as maximum hydraulic pressure.
Although the test method is suitble to promote the use of, it still remains following problems: since waterstop joint is with cold
Gel or hot melt measure are bonded together, and the abutting edge of waterstop is weak spot, are disposed adjacent with deformation joint, meeting when applied voltage test
Make waterstop seam take the lead in destroying, test effect is not achieved.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of guarantee waterstop weak spot is proposed not
The experimental provision of hydraulic pressure can be first born by the test deformation joint buried water strip of the pressure of water.
It also proposed a kind of experimental method of test deformation joint buried water strip receiving hydraulic pressure.
Object of the invention can be realized by the following technical scheme:
The experimental provision that deformation joint buried water strip bears hydraulic pressure is tested, including lining cutting and the tool surrounded by rectangle waterstop
Jointed seal ring, the seal ring are set in lining cutting between two parties, and the axial length of the seal ring is less than the height of lining cutting,
It is characterized in that, being equipped at the 1/2 of the lining cutting height by the outwardly extending deformation joint of seal ring outer radial, the seal ring
Seam be located remotely from the side of deformation joint, the inside of the seal ring is equipped with for carrying out to seal ring far from the side of seam
The pressure-applying unit of pressurization, the pressure-applying unit are oppositely arranged with deformation joint.Seal ring and pressure-applying unit are embedded in lining cutting and work as
In, relative motion will not occur with lining cutting.Due to Tunnel Passing difference bottom, whose requirement of the health of every section of bottom is different, therefore
The thickness of lining cutting, waterproofing of movement joints mode are also different, this experimental provision can simulate the practical structures of lining deformation joints.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, the pressure-applying unit includes being in
Fan-shaped upper steel plate and the upper steel plate lower steel plate being oppositely arranged and the fixed plate being vertically fixed between upper steel plate and lower steel plate,
The upper steel plate is identical and equal in magnitude as the shape of lower steel plate, the inner ring surface of above-mentioned seal ring respectively with upper steel plate and lower steel plate
Arc-shaped edges recline setting, the left and right ends of the fixed plate recline with the inner ring surface of seal ring setting respectively, the upper steel
Closed plus water cavity is formed between plate, lower steel plate, fixed plate and seal ring, should plus water cavity be oppositely arranged with deformation joint, it is described
Upper steel plate on be fixed with lower end with plus the flow pipe that be connected to of water cavity, be pierced by above the flow pipe after lining cutting and pressure pump company
It connects.
Fixed plate is steel plate, and flow pipe is elongated steel pipe, and internal diameter should be greater than 10mm, and flow pipe thickness is greater than 2mm, inside
In the case that diameter is certain, the wall thickness of flow pipe should be thick as far as possible.The circular hole for offering one on upper steel plate and water cavity being added to be connected to, should
The aperture of circular hole is less than or equal to the diameter of flow pipe, and flow pipe is fixed with upper steel plate by welding and is connected to the circular hole.Seam
Side positioned at fixed plate far from upper steel plate or lower steel plate, and seam and fixed plate centering are arranged.To add be pressurized in water cavity when,
Hydraulic pressure will not be applied directly in seam, prevent waterstop seam from first destroying.Be additionally provided with above flow pipe bleeder port,
Pressure gauge connecting hole and water injection hole, pressure pump are connect with water injection hole.When just starting water filling, positioned at adding in water cavity and flow pipe
Air is discharged by bleeder port, and when air is completely exhausted out mouth, lose heart bore closure, pressure pump by water injection hole to add in water cavity step by step plus
Press pump enters water.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, the central angle of the upper steel plate is
120 °~180 °.The central angle of upper steel plate is that a straight flange of upper steel plate and another straight flange are formed by angle, works as upper steel plate
Central angle be not equal to 180 ° when, fixed plate is folded plate.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, the central angle of the upper steel plate is
180 °, the fixed plate is that straight panel and the straight flange of the upper end and upper steel plate weld, the lower end of the fixed plate and lower steel plate
Straight flange welding, described adds water cavity to be in semi-cylindrical.When the central angle of upper steel plate is 180 °, upper steel plate becomes semicircle, under
Steel plate becomes semicircle, and adding water cavity is semicolumn chamber.Wherein the left and right length of fixed plate is equal to the diameter of upper steel plate, fixed plate
Upper and lower width is equal to the width of deformation joint, and the thickness of fixed plate should be greater than 2mm.When water enter plus water cavity in after, to adding water cavity
Semicircle circumferential surface (i.e. the inner wall of seal ring) press, when observe seal ring have water ooze out or Lining cracks or pressure gauge on
When numerical value reduces, the as maximum hydraulic pressure that can bear of seal ring.The radius of upper steel plate and lower steel plate should be greater than 100mm, thick
Degree should be greater than 2mm, to guarantee rigidity.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, the outside weldings of the flow pipe
There is the round water fender with flow pipe coaxial arrangement being located in lining cutting, the water fender is located at the top of seal ring and sealing
Distance of the top of ring away from water fender is greater than 50mm.Water fender mainly plays waterproof action, and main rise prevents water flow from seeping along flow pipe
Purpose out does not require intensity, and assuring welding quality, thickness should not be too large, thickness range 0.2mm
The diameter of~5mm, water fender should be greater than 100mm.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, it is fully embedded the waterstop of lining cutting
Length is greater than the width of waterstop.It is fully embedded and refers to that the two sides of waterstop is contacted with lining cutting.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, outside the seal ring to lining cutting
The distance on the portion scope of freedom is the half of lining thickness.
In the experimental provision that above-mentioned test deformation joint buried water strip bears hydraulic pressure, the upper steel plate and lower steel plate
Between be arranged steel cushion block.
Test the experimental method that deformation joint buried water strip bears hydraulic pressure, comprising the following steps:
A, upper steel plate, lower steel plate, fixed plate and flow pipe are welded together, forms pressure-applying unit, and on flow pipe
Weld round water fender；
B, the waterstop for taking certain length is surrounded the seal ring of annular along the length direction of waterstop, in seam crossing
It is bonded together with bonding agent；Bonding agent is epoxy resin；
C, end template and side template are installed, is formed between end template and side template and pours chamber, seal ring centering is placed
It is intracavitary pouring, building lining is poured from the bottom up, and the lower part of seal ring is poured onto lining cutting；
D, pressure-applying unit is put into seal ring and is resisted against lower steel plate in the part lining cutting poured, steel in guarantee
The inner wall of plate, the arc-shaped side of lower steel plate and seal ring fits closely, at this time in the middle line of sealing bandwidth and fixed board width
Line is located in the same horizontal plane；Formation of foam deformation joint is put into far from the side of seam in seal ring；Due to upper steel plate, lower steel plate
Arc-shaped side and the inner wall of seal ring fit closely, when can prevent from pouring building lining concrete flow into plus water cavity in；Foam is as branch
Timbering material, with a thickness of deformation joint width；
E, the remaining part of building lining is poured；Foam is drawn after the completion of lining cutting maintenance and is removed；
F, the lining cutting poured is placed on one big steel plate, and other one big steel plate is placed into lining cutting, it is two big
Steel plate is tightened by bolt；
G, flow pipe cut-in pressure pumps, and pressurizes step by step, when observing that sealing stretches out or Lining cracks or pressure gauge with water
It reduces, as maximum hydraulic pressure.
In the experimental method that above-mentioned test deformation joint buried water strip bears hydraulic pressure, step g pressurize step by step in every grade
Added pressure is 0.1MPa~1MPa, and every grade of voltage stabling control is greater than 5 minutes.
Compared with prior art, the invention has the following advantages that
Its practical structures that can simulate lining deformation joints can test the deformation joint lining cutting for using buried water strip waterproof
Water pressure resistance ability, verifies whether the water-fast voltage levels for reaching design requirement, Feedback Design, carries out lining cutting parameter and waterproof type
Adjustment；Single-side pressurization makes waterstop seam far from the side of deformation joint, guarantees that waterstop weak spot will not be first by the pressure of water
Power and from seam crossing destroy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of preferred embodiment provided by the invention.
Fig. 2 is the partial structure diagram of pressure-applying unit provided by the invention.
Fig. 3 is seal ring layout drawing provided by the invention.
In figure, 1, lining cutting；2, seam；3, seal ring；4, deformation joint；5, upper steel plate；6, lower steel plate；7, fixed plate；8, add
Water cavity；9, flow pipe；10, water fender；11, steel cushion block；12, end template；13, side template；14, foam.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Test deformation joint buried water strip as shown in Figure 1 bears the experimental provision of hydraulic pressure, including diameter is 1m, is highly
The lining cutting 1 of 1.1m and the seal ring 3 with seam 2 surrounded by rectangle waterstop, the seal ring 3 are set to lining cutting 1 between two parties
Interior, the axial length of the seal ring 3 is less than the height of lining cutting 1.As shown in Figure 1, being equipped at the 1/2 of 1 height of lining cutting by sealing
The outwardly extending deformation joint 4 of 3 outer radial of ring, the seam 2 of seal ring 3 are located remotely from the side of deformation joint 4, seal ring 3 it is interior
Portion is equipped with the pressure-applying unit for pressurizeing to seal ring 3 far from the side of seam 2, and pressure-applying unit is opposite with deformation joint 4 to be set
It sets.Seal ring 3 and pressure-applying unit are embedded in lining cutting 1, relative motion will not occur with lining cutting 1.Not due to Tunnel Passing
Same bottom, whose requirement of the health of every section of bottom is different, therefore the thickness of lining cutting 1,4 waterproof type of deformation joint are also different, this experiment
Device can simulate the practical structures of 1 deformation joint 4 of lining cutting.
As shown in Fig. 2, pressure-applying unit includes fan-shaped upper steel plate 5, the lower steel plate 6 being oppositely arranged with upper steel plate 5 and hangs down
The fixed plate 7 being directly fixed between upper steel plate 5 and lower steel plate 6, upper steel plate 5 are identical and equal in magnitude as the shape of lower steel plate 6.Such as
Shown in Fig. 3, the inner ring surface of seal ring 3 reclines with the arc-shaped edges of upper steel plate 5 and lower steel plate 6 setting respectively, the left and right two of fixed plate 7
The setting that reclines respectively with the inner ring surface of seal ring 3 is held, is formed between upper steel plate 5, lower steel plate 6, fixed plate 7 and seal ring 3 close
Close plus water cavity 8, should plus water cavity 8 be oppositely arranged with deformation joint 4, be fixed on upper steel plate 5 lower end with add water cavity 8 be connected to send water
Pipe 9, the top of flow pipe 9 are connect after being pierced by lining cutting 1 with pressure pump.
Fixed plate 7 is steel plate, and flow pipe 9 is elongated steel pipe, and internal diameter should be greater than 10mm, and 9 thickness of flow pipe is greater than 2mm,
In the case where internal diameter is certain, the wall thickness of flow pipe 9 should be thick as far as possible.One is offered on upper steel plate 5 to be connected to water cavity 8 is added
Circular hole, the aperture of the circular hole are less than or equal to the diameter of flow pipe 9, flow pipe 9 it is fixed with upper steel plate 5 by welding and with the circular hole
Connection.Seam 2 is located at side of the fixed plate 7 far from upper steel plate 5 or lower steel plate 6, and seam 2 and 7 centering of fixed plate are arranged.Right
When adding pressurization in water cavity 8, hydraulic pressure will not be applied directly in seam 2, prevent waterstop seam 2 from first destroying.In flow pipe 9
Top be additionally provided with bleeder port, pressure gauge connecting hole and water injection hole, pressure pump and connect with water injection hole.When just starting water filling, position
In adding water cavity 8 to be discharged with the air in flow pipe 9 by bleeder port, when air is completely exhausted out mouth, lose heart bore closure, and pressure pump passes through
To adding in water cavity 8, pressurization is pumped into water to water injection hole step by step.In the present embodiment, vent valve is installed in bleeder port.
Wherein, the central angle of upper steel plate 5 is 120 °~180 °.The central angle of upper steel plate 5 be upper steel plate 5 a straight flange with
Another straight flange is formed by angle, and when the central angle of upper steel plate 5 is not equal to 180 °, fixed plate 7 is folded plate.As shown in Fig. 2,
The central angle of upper steel plate 5 is 180 °, and fixed plate 7 is the straight flange welding of straight panel and the upper end and upper steel plate 5, the lower end of fixed plate 7
It is welded with the straight flange of lower steel plate 6, adds water cavity 8 in semi-cylindrical.When the central angle of upper steel plate 5 is 180 °, upper steel plate 5 becomes half
Circle, lower steel plate 6 become semicircle, and adding water cavity 8 is semicolumn chamber.Wherein the left and right length of fixed plate 7 is equal to the straight of upper steel plate 5
Diameter, the width up and down of fixed plate 7 are equal to the width of deformation joint 4, and the thickness of fixed plate 7 should be greater than 2mm.Add water cavity when water enters
After in 8, press to the semicircle circumferential surface (i.e. the inner wall of seal ring 3) for adding water cavity 8, when observe seal ring 3 have water ooze out or
When numerical value reduces on the cracking of lining cutting 1 or pressure gauge, the as maximum hydraulic pressure that can bear of seal ring 3.Upper steel plate 5 and lower steel plate 6
Radius should be greater than 100mm, thickness should be greater than 2mm, to guarantee rigidity.
As shown in Figure 1, the outside weldings of flow pipe 9 have the round water blocking being coaxially disposed with flow pipe 9 in lining cutting 1
Plate 10, water fender 10 are located at the top of seal ring 3 and the top of seal ring 3 and are greater than 50mm away from the distance of water fender 10.Water fender
10 mainly play waterproof action, main to act the purpose for preventing water flow from oozing out along flow pipe 9, do not require intensity, are guaranteeing to weld
Under the premise of quality, thickness be should not be too large, and thickness range is 0.2mm~5mm, and the diameter of water fender 10 should be greater than 100mm.
In the present embodiment, the length for being fully embedded the waterstop of lining cutting 1 is greater than the width of waterstop.It is fully embedded and refers to waterstop
Two sides contacted with lining cutting 1.The distance in seal ring 3 to 1 external freedom face of lining cutting is the half of 1 thickness of lining cutting, the present embodiment
In, the distance of waterstop to 1 external freedom face of lining cutting is 400mm.
As shown in Figure 1, steel cushion block 11 is arranged between upper steel plate 5 and lower steel plate 6.
Test the experimental method that deformation joint buried water strip bears hydraulic pressure, comprising the following steps:
Outer wall thickness 5mm is selected, the flow pipe 9 of length 100mm, internal diameter 10mm are supported using Q345 steel；Select thickness
For 0.2mm, radius is the semicircle upper steel plate 5 and semicircle lower steel plate 6 of 100mm, digs circular hole on upper steel plate 5；
A, upper steel plate 5, lower steel plate 6, fixed plate 7 and flow pipe 9 are welded together, forms pressure-applying unit, and sending water
Round water fender 10 is welded on pipe 9, prevents water from oozing out along flow pipe 9；
B, the waterstop for taking certain length is surrounded the seal ring 3 of annular along the length direction of waterstop, in seam 2
Place is bonded together with bonding agent；Bonding agent is epoxy resin；
C, end template 12 and side template 13 are installed, is formed between end template 12 and side template 13 and pours chamber, by seal ring 3
It is placed on in and pours intracavitary, poured building lining 1 from the bottom up, the lower part of seal ring 3 is poured onto lining cutting 1；
D, pressure-applying unit is put into seal ring 3 and is resisted against lower steel plate 6 in the part lining cutting 1 poured, guaranteed
Upper steel plate 5, lower steel plate 6 the inner wall of arc-shaped side and seal ring 3 fit closely, the middle line of sealing bandwidth and fixed plate 7 at this time
The middle line of width is located in the same horizontal plane；Foam 14, which is put into, far from the side of seam 2 in seal ring 3 forms deformation joint 4, deformation
Stitching 4 width is 20mm；Since the inner wall of upper steel plate 5, the arc-shaped side and seal ring 3 of lower steel plate 6 fits closely, can prevent from pouring lining
Concrete, which flows into, when building 1 adds in water cavity 8；Foam 14 is used as backing material, with a thickness of 4 width of deformation joint；
E, the remaining part of building lining 1 is poured；Foam 14 is drawn after the completion of the maintenance of lining cutting 1 and is removed；
F, the lining cutting 1 poured is placed on one big steel plate, and other one big steel plate is placed into lining cutting 1, two
Big steel plate is tightened by bolt；
G, 9 cut-in pressure of flow pipe pump, pressurize step by step, when observe sealing with water stretch out or lining cutting 1 cracking or pressure
Table reduces, as maximum hydraulic pressure.
Wherein, step g pressurize step by step in pressure added by every grade be 0.1MPa~1MPa, every grade of voltage stabling control is greater than 5 points
Clock.
When experiment, vent valve is opened, inwardly fills the water, closes vent valve when bleeder port there are flowing out.Continue to pressurize, to water
When pressure adds to 0.25MPa, stop pressurization, and pressure maintaining 10 minutes, if obvious decompression situation occurs in midway, answers timely ftercompction.
Using 0.5MPa as level-one, upwards boost, every liter level-one pressure maintaining 10 minutes, midway decompression more than 0.5MPa when, answer and
When ftercompction.When reaching 4.5MPa, pressure stabilizing 48h.Pressurization is continued thereafter with, when leak or waterstop and concrete occurs in sealing desmorrhexis
Gap when there is leak, that is, think to reach maximum hydraulic pressure value.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of test deformation joint buried water strip bears the experimental provision of hydraulic pressure, including lining cutting (1) and is enclosed by rectangle waterstop
At the seal ring (3) with seam (2), the seal ring (3) between two parties be set to lining cutting (1) in, the axis of the seal ring (3)
It is less than the height of lining cutting (1) to length, which is characterized in that be equipped at the 1/2 of lining cutting (1) height by the outside of seal ring (3)
The deformation joint (4) to extend radially outwardly, the seam (2) of the seal ring (3) is located remotely from the side of deformation joint (4), described to stop
The inside of water ring (3) is equipped with the pressure-applying unit for pressurizeing to seal ring (3) far from the side of seam (2), and described adds
Pressure component is oppositely arranged with deformation joint (4).
2. the experimental provision that test deformation joint buried water strip according to claim 1 bears hydraulic pressure, which is characterized in that institute
The pressure-applying unit stated includes fan-shaped upper steel plate (5), the lower steel plate (6) being oppositely arranged with upper steel plate (5) and is vertically fixed on
Fixed plate (7) between upper steel plate (5) and lower steel plate (6), the upper steel plate (5) is identical as the shape of lower steel plate (6) and size
Equal, the inner ring surface of above-mentioned seal ring (3) reclines with the arc-shaped edges of upper steel plate (5) and lower steel plate (6) setting respectively, the fixation
The left and right ends of plate (7) recline with the inner ring surface of seal ring (3) setting respectively, the upper steel plate (5), lower steel plate (6), fixed
Closed plus water cavity (8) are formed between plate (7) and seal ring (3), should plus water cavity (8) be oppositely arranged with deformation joint (4), it is described
Upper steel plate (5) on be fixed with lower end with plus water cavity (8) flow pipe (9) for being connected to, be pierced by lining cutting above the flow pipe (9)
(1) it is connect afterwards with pressure pump.
3. the experimental provision that test deformation joint buried water strip according to claim 2 bears hydraulic pressure, which is characterized in that institute
The central angle for stating upper steel plate (5) is 120 °~180 °.
4. the experimental provision that test deformation joint buried water strip according to claim 3 bears hydraulic pressure, which is characterized in that institute
The central angle for stating upper steel plate (5) is 180 °, and the fixed plate (7) is the straight flange welding of straight panel and the upper end and upper steel plate (5),
The lower end of the fixed plate (7) and the straight flange of lower steel plate (6) weld, and described adds water cavity (8) to be in semi-cylindrical.
5. the experimental provision that test deformation joint buried water strip according to claim 2 bears hydraulic pressure, which is characterized in that institute
The outside weldings for stating flow pipe (9) have the round water fender (10) with flow pipe (9) coaxial arrangement in lining cutting (1), institute
The water fender (10) stated is located at the top of seal ring (3) and the top of seal ring (3) and is greater than 50mm away from the distance of water fender (10).
6. the experimental provision that test deformation joint buried water strip according to claim 1 bears hydraulic pressure, which is characterized in that complete
The length for being embedded to the waterstop of lining cutting (1) is greater than the width of waterstop.
7. the experimental provision that test deformation joint buried water strip according to claim 1 bears hydraulic pressure, which is characterized in that institute
The distance in the seal ring (3) stated to lining cutting (1) external freedom face is the half of lining cutting (1) thickness.
8. test deformation joint buried water strip according to claim 2 bears the experimental provision of hydraulic pressure, the upper steel plate
(5) steel cushion block (11) are set between lower steel plate (6).
9. a kind of experimental method for bearing hydraulic pressure suitable for the test deformation joint buried water strip of claim 5, which is characterized in that
The following steps are included:
A, upper steel plate (5), lower steel plate (6), fixed plate (7) and flow pipe (9) are welded together, formation pressure-applying unit, and
Round water fender (10) is welded on flow pipe (9)；
B, the waterstop for taking certain length is surrounded the seal ring (3) of annular along the length direction of waterstop, in seam (2)
Place is bonded together with bonding agent；
C, end template (12) and side template (13) are installed, is formed between end template (12) and side template (13) and pours chamber, it will only
Water ring (3) is placed on in be poured intracavitary, pours building lining (1) from the bottom up, the lower part of seal ring (3) is poured onto lining cutting (1)；
D, pressure-applying unit is put into seal ring (3) and is resisted against lower steel plate (6) in the part lining cutting (1) poured, protected
Card upper steel plate (5), lower steel plate (6) the inner wall of arc-shaped side and seal ring (3) fit closely, at this time the middle line of sealing bandwidth and
The middle line of fixed plate (7) width is located in the same horizontal plane；Foam (14) are put into far from the side of seam (2) in seal ring (3)
It is formed deformation joint (4)；
E, the remaining part of building lining (1) is poured；Foam (14) is drawn after the completion of lining cutting (1) maintenance and is removed；
F, the lining cutting poured (1) is placed on one big steel plate, and other one big steel plate is placed on lining cutting (1), two
Big steel plate is tightened by bolt；
G, flow pipe (9) cut-in pressure pump, pressurize step by step, when observe sealing with water stretch out or lining cutting (1) cracking or pressure
Table reduces, as maximum hydraulic pressure.
10. test deformation joint buried water strip according to claim 9 bears the experimental method of hydraulic pressure, step g adds step by step
Pressure added by every grade is 0.1MPa~1MPa in pressure, and every grade of voltage stabling control is greater than 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350957.1A CN109900559A (en) | 2019-04-28 | 2019-04-28 | Test experimental provision and experimental method that deformation joint buried water strip bears hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350957.1A CN109900559A (en) | 2019-04-28 | 2019-04-28 | Test experimental provision and experimental method that deformation joint buried water strip bears hydraulic pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110398420A (en) * | 2019-08-19 | 2019-11-01 | 艾尔希庆华(西安)汽车有限公司 | A kind of quick-fried reinspection test method of gas generator liquid |
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