CN105353111B - A kind of concrete filled steel tube bow member perfusion analog systems and effect assessment method - Google Patents
A kind of concrete filled steel tube bow member perfusion analog systems and effect assessment method Download PDFInfo
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- CN105353111B CN105353111B CN201510943735.2A CN201510943735A CN105353111B CN 105353111 B CN105353111 B CN 105353111B CN 201510943735 A CN201510943735 A CN 201510943735A CN 105353111 B CN105353111 B CN 105353111B
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- 230000010412 perfusion Effects 0.000 title claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 47
- 239000010959 steel Substances 0.000 title claims abstract description 47
- 230000000694 effects Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000005429 filling process Methods 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000010835 comparative analysis Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 239000011440 grout Substances 0.000 claims description 31
- 238000005056 compaction Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 3
- 238000001739 density measurement Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims 2
- 238000000691 measurement method Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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- Chemical & Material Sciences (AREA)
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention proposes a kind of concrete filled steel tube bow member perfusion analog systems and effect assessment method.This analog systems is made up of bow member mould, support means, grouting system and grouting monitoring system.Filling concrete effect assessment method based on this pilot system: by observation band and weight data acquisition system in filling process, analyze from side and evaluate Grouted density；Irrigate after maintenance, form removal, cutting, sample and number, the density value of test No. sample and mechanical index, according to this different parts filling concrete effect in bow member mould is carried out comparative evaluation, the perfusion effect of difference perfusion scheme is carried out comparative evaluation simultaneously.The invention has the beneficial effects as follows: utilize the present invention can study each grouting factor affecting laws to concrete filled steel tube bow member perfusion effect, optimize method for filling, technique and parameter.
Description
Technical field
The present invention relates to underground engineering support testing of materials field, concrete filled steel tube bow member conventional in a kind of underground engineering
Perfusion effect analog systems.
Background technology
Along with the fast development of China's infrastructure construction, road and rail tunnel, coal mine roadway, subway, water power chamber etc. are built
More and more extensive, the geological conditions residing for a lot of engineerings is more severe, as great burying, soft rock, fault tectonic etc. all bring sternly
The supporting Problem of Failure of weight.For this, concrete filled steel tube bow member, due to its high powerful feature, is played the part of in underground engineering support field
The most important role, obtain preferable economic results in society.
But, the design and construction of current concrete filled steel tube bow member supporting parameter still based on experience, the perfusion of concrete filled steel tube
Technique and parameter are chosen and are lacked foundation, and the design such as slurry fluidity, filling speed, grout hole position etc. does not all have clear and definite foundation,
Thus a series of important indicators such as the perfusion degree of compaction of core concrete, intensity can be affected.And the perfusion effect of concrete is to steel pipe
The actual bearer capacity of concrete bow member is huge, and finally determines its supporting effect.It is known that Study on Steel pipe concrete
The direct-vision method of perfusion effect is to carry out simulation test, the emulation of science and pilot system by improving constantly test method
Degree, progressively obtains more accurate result of the test.But, the most still do not have associated analog system or analog systems to be capable of this
Purpose.
Therefore, the most urgently exploitation one has concrete filled steel tube bow member perfusion analog systems and effect assessment method targetedly,
Carry out a series of concrete filled steel tube bow member perfusion simulation test according to this.By relative analysis, grasp concrete filled steel tube bow member perfusion ginseng
The affecting laws to bow member filling concrete effect such as number, technique, operation, and then optimize design and construction parameter, improve perfusion
Effect, improves concrete filled steel tube bow member design of its support theory and promotes the progress of this technology.
Summary of the invention
In order to solve technological deficiency present in prior art, the invention discloses a kind of concrete filled steel tube bow member perfusion analog systems
And effect assessment method, it is by engineering Common Steels pipe concrete bow members such as this analog systems simulation mine working, tunnel, subways
Filling concrete scene, and then carry out correlation test, study different grouting process, parameter, method and other factors pair
The affecting laws of grouting effect.Deeply, the difference of grouting effect under the various influence factor of intuitive and accurate analysis, and then sum up
Go out the optimal case of concrete filled steel tube grouting.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of concrete filled steel tube bow member perfusion analog systems, including one by the assembled bow member mould of hollow steel pipe, described
Bow member mould be provided with the grout hole being connected with grouting system and for discharging excessive gas in bow member mould when concrete perfusion
Steam vent, and along bow member mold axis one in front and one in back interlaced arrangement at bow member mould be just additionally provided with on described bow member mould
The observation band at face and the back side and be arranged on the gravity sensor of bottom of bow member mould；Described gravity sensor and data acquisition
Collecting system is connected.
Described bow member mould is the combinative structure of the bow member shape assembled by steel pipe, and its global shape is circular, straight legs half
Dome-shaped or three-core arch, its clean cross section is circular, square or rectangle；Described bow member mould is passed through sleeve pipe by several sections of components
Being formed by connecting, each section of each joint component is formed by connecting by transverse flange, and each section is vertical by passing through from the steel pipe of axis vertical profile
Form to Flange joint；Described bow member mould is at the equal detachable of each sleeve pipe and flange, it is simple to grouting maintenance is torn open after terminating
Mould.
Described observation band is to fill with high-strength transparent resin material to form after test bow member sidewall setting position cuts out strip hole
, the purpose that strip hole prevents concrete from leaking and can realize transparent observation experiment bow member inner case can be filled.
Described bow member mould is supported also by a support means, and described support means is by column, crossbeam, fixing hinge
Bearing, hoist engine, diagonal brace and support platform composition；Described crossbeam is fixed on column, at the identical height of column, respectively
Arrange one, front and back formed between two crossbeams and place and the interval of fixed arch frame mould；Described fixed-hinged support is arranged on column
Bottom, described hoist engine passes through steel wire rope connecting cross beam, for the support means described in tractive, makes support means and bow member mould
Tool can rotate centered by fixing hinge.
Described diagonal brace is connected on column, at fixed support device, to ensure stablizing of support means in filling process.
Described grouting system includes concrete pump, grout pipe, grouting joint, grout hole and steam vent.Described coagulation
Soil delivery pump is by the bow member mould described in described grout pipe and described grouting joint connection, and concrete pump is to bow member mould
Tool irrigates the concrete of different mixture ratio；In described grouting joint, check valve is set, makes the most unidirectional inflow of concrete slurry
Device and can not inversely flow out, it is ensured that remove grout pipe time serosity will not be flowed out by grout hole.When concrete is from described steam vent stream
When going out, grouting reaches ending standard, stops concrete pump.
Described grouting system also includes a vibrator, and described vibrator is fixed on bow member mould, needs choosing according to test
Select and whether open and select suitably to shake parameter, in filling process, provide effect of vibration to bow member mould.
Described observation band is arranged on test bow member uniformly, and laboratory technician can be by observation band, real-time monitored record coagulation
The position of soil paste perfusion, thus calculate grouting volume and speed.
Described gravity sensor is placed on the bottom of bow member mould, is fixed in support platform；Described weight sensor and weight
Amount data collecting system connects, and the weight change to filling process middle arch rack mould is monitored in real time and gathers, in conjunction with grouting speed
Spend and analyze from side and evaluate Grouted density.
The method testing and assessing the perfusion effect of said apparatus, according to research needs, carries out campaign, and each test is selected
Different grouting process or parameter, specifically include that whether and parameter, grout hole position concrete proportioning, filling speed, vibration
And size etc., by comparison, the different factor affecting laws to grouting effect of test and appraisal, including following:
(1) test and appraisal of the degree of compaction in filling process.
By the real-time monitoring weight of filling process and observation bar tape recording, obtain bow member mold weight delta data intuitively and mix
Solidifying soil perfusion interface location；Change based on this total body density that can obtain the rate of flooding of concrete, penetration concrete is advised
Rule, and then the perfusion degree of compaction of concrete is analyzed from side.
(2) comprehensive test of perfusion effect.
Irrigate rear maintenance to prescribed time-limit, form removal, then the concrete of bow member mould different parts has been cut, samples
And numbering, measuring the concrete dense angle value of numbering sample, the mechanical strength index of test No. sample, by described amount of densities
On the one hand survey and mechanical index is tested, obtain the concrete mechanics index of physics of different parts in bow member mould, according to this to bow member
In mould, the filling concrete effect of different parts carries out comparative evaluation；On the other hand be can get in bow member mould by weighted average
The total body density value of concrete and bulk strength index, carry out comparative evaluation to the perfusion effect of difference perfusion scheme according to this；Evaluate
Standard be: density value is the highest, and perfusion effect is the best；Mechanical index such as axial compressive strength, cohesion etc. is the highest, perfusion effect
Fruit is the best.
The present invention reaches to provide the benefit that: can be according to research needs, it is considered to different grouting process or parameter, mainly includes mixing
Whether and parameter, grout hole position and size etc. solidifying soil proportioning, filling speed, vibration.Analog systems of the present invention can be used to carry out
Single test or campaign, it is possible to use perfusion effect assessment method of the present invention to study each influence factor to concrete filled steel tube bow member
The affecting laws of perfusion effect, optimizes method for filling, technique and parameter.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, embodiment or prior art will be retouched below
In stating, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is that concrete filled steel tube bow member irrigates analog systems front view；
Fig. 2 is that concrete filled steel tube bow member irrigates analog systems side view；
Fig. 3 is bow member mould cross sectional representation；
Fig. 4 is transverse flange schematic diagram.
In figure: 1-bow member mould；2-sleeve pipe；3-transverse flange；4-longitudinal flange；5-grout hole；6-steam vent；7-observes
Band；8-column；9-crossbeam；10-U type card；The hinged seat of 11-；12-steel wire rope；13-hoist engine；14-diagonal brace；15-props up
Support platform；16-concrete pump；17-grout pipe；18-is in the milk joint；19-vibrator；20-gravity sensor；21-weight
Force data monitoring system.
With embodiment, the present invention is further elaborated below in conjunction with the accompanying drawings:
This analog systems is made up of following 4 parts: bow member mould 1, support means, grouting system and grouting monitoring system.
Below it is illustrated one by one:
The described combinative structure that bow member mould 1 is the bow member shape assembled by steel pipe, its global shape can be circular,
The multiple conventional bow member shapes such as straight legs Semicircular arched, three-core arch, its clean cross section can be circular, square, rectangle or its
His shape；Described bow member mould is formed by telescopic joint by several sections of components, and each section of each joint component is connected by transverse flange 3
Connecing and form, each section is to be formed by connecting by longitudinal flange 4 by from the steel pipe of axis vertical profile；Described bow member mould 1 is respectively
Sleeve pipe 2 and the equal detachable of flange, it is simple to grouting maintenance terminates rear form removal.Be provided with on described test bow member grout hole,
Steam vent, observation band.
Grout hole 5 is used for concrete perfusion in bow member mould, is arranged on the bottom of bow member mould；Described steam vent 6 is used for
Discharge excessive gas in bow member mould when concrete perfusion, be arranged on the top of bow member mould；Change also dependent on test needs
Become grout hole and the position of steam vent.
Observation band 7 along bow member mold axis one in front and one in back interlaced arrangement at the front and back of bow member mould, it is therefore an objective to ensure arch
While the integrity of frame mould structure, it is achieved to the accurate observation of concrete interface during grouting.Described observation band is in examination
Test bow member sidewall to specify position to cut out behind strip hole to fill with high-strength transparent resin material, strip hole can be filled and prevent from mixing
Solidifying soil leaks and can realize the purpose of transparent observation experiment bow member inner case.
Support means is by column 8, crossbeam 9, fixed-hinged support 11, steel wire rope 12, hoist engine 13, diagonal brace 14 and supports platform
15 compositions.Described crossbeam 8 is fixed on column 8, at the identical height of column 8, front and back by bolt and U-shaped card 10
Respectively arrange one.Front and back form interval between two girder steels, this size of space slightly larger than the thickness of bow member mould, for placing and
Fixed arch frame mould.Horizontal depth of beam, quantity and level interval can be regulated as required, it is ensured that stablizing of bow member mould.Described
Fixed-hinged support be arranged on column bottom, described hoist engine is by described steel wire rope connecting cross beam, for described in tractive
Support means, can make support means and bow member mould can rotate centered by hinge, on the one hand can simulate at different inclinations angle
Grouting under Du, on the other hand can make support means and bow member mould keep flat completely, it is simple to the assembly of bow member mould and form removal.
Described diagonal brace is connected on column, at fixed support device, to ensure stablizing of support means in filling process.
Described grouting system is by concrete pump 16, grout pipe 17, grouting joint 18, grout hole 5, steam vent 6 and shakes
Dynamic device 19 forms.Described concrete pump is by the bow member mould described in described grout pipe and described grouting joint connection
Tool, concrete pump can irrigate the concrete of different mixture ratio in bow member mould.Arrange unidirectional in described grouting joint
Valve, makes the most unidirectional inflow device of concrete slurry inversely to flow out, it is ensured that when removing grout pipe, serosity will not be by grout hole
Flow out.When concrete flows out from described steam vent, grouting reaches ending standard, stops concrete pump.Described vibration
Device can be fixed on bow member mould, chooses whether to open and select suitably to shake parameter, at filling process according to test needs
In to bow member mould provide effect of vibration.
Described grouting monitoring system includes that observing band 7, weight sensor 20 and weight data acquisition system 21 forms.Institute
The observation band stated is arranged on test bow member uniformly, and laboratory technician can be by observation band 7, real-time monitored record concrete grout
The position of perfusion, thus calculate grouting volume and speed.
Described gravity sensor 202 is placed on the bottom of bow member mould 1, is fixed on support platform；Described weight sensor
20 are connected with weight data acquisition system 21, and the weight change to filling process middle arch rack mould is monitored in real time and gathers,
Analyze and evaluation Grouted density from side in conjunction with filling speed.
Concrete implementation is as follows:
(1) assembly of bow member mould and in place.
As shown in Figure 1 and Figure 2, under flat condition, column 8 is attached by U-shaped card 10 with crossbeam 9, and is arranged on
On fixed-hinged support 11, gravity sensor 20 is arranged in support platform 15；By sleeve pipe 1, longitudinal direction in support means
Flange 4 (Fig. 3) and transverse flange 5 (Fig. 4) by bow member mould 1 assembled formation, bow member mould 1 is provided with grout hole 5,
Steam vent 6 observes band 8, observation band 8 be in the front and back walls of bow member mould 1, output strip hole after fill high-strength transparent
Resin material is constituted, as it is shown on figure 3, the observation band interlaced arrangement of front and rear wall is beneficial to observation；Steel wire by hoist engine 13
Restrict on the crossbeam 9 that 12 one end are fixed on topmost；Start hoist engine 13 and support means is adjusted to differing tilt angles with simulation
On-the-spot bow member perfusion situation, and utilize diagonal brace 14 support means to be fixed.
(2) filling concrete and monitoring.
As shown in Figure 1 and Figure 2, by grout pipe 17 and grouting joint 18 by the grout hole 5 of bow member mould and concrete conveyance
Pump 16 is connected；With wire, weight sensor 15 is connected with weight data monitoring system 21, opens weight data monitoring system
21, monitor and record the weight of bow member mould 1 in real time；Start concrete pump 16, by it, concrete slurry pressurizeed,
Concrete perfusion in bow member mould 1, measures and records the weight change of bow member mould 1 in real time in filling process；Pass through simultaneously
Observation band 7 real-time monitored also records filling concrete position the most in the same time, owing to observing band 7 for the cloth that one in front and one in back interlocks
Putting, the interface conditions of grouting can be observed with continuous print.In filling process, choose whether as required to open vibrator 19 permissible
Select different vibration modes.For ensureing bow member mould 1 monitoring weight accuracy, the grout pipe 17 near grout hole 5 is carried out
Lift or suspention processes, reduce the impact on bow member mould 1 weight result of its weight.When steam vent 6 have concrete flow out and
After flowing out ormal weight, closing concrete pump 16, extract grout pipe 17 from grouting joint 18, grouting terminates.Grouting connects
It is provided with check valve in 18, prevents grout pipe 17 from pulling out rear concrete and flow backwards.After grouting terminates, keep bow member mould 1 former
Position is motionless, and static placement, by rated condition maintenance to the stipulated time.
(3) concrete form removal and sampling and testing.
As shown in Figure 1 and Figure 2, after maintenance, remove vibrator 19 and diagonal brace 14, and with hoist engine 13 tractive steel wire rope
12, bow member mould 1 is adjusted to horizontal attitude.By the transverse flange 3 on decentering mould 1, longitudinal flange 4 and set
Pipe 2, takes out the concrete in bow member mould 1, then cuts concrete, samples and number；Measure each numbering
The density of sample and intensity index (uniaxial compressive strength, cohesion etc.).
(4) perfusion effect test and appraisal
1. the test and appraisal of the degree of compaction in filling process.
By the Monitoring Data of the real-time weight data acquisition system 21 of filling process and the observational record of observation band 7, intuitively
Obtain weight change and the filling concrete interface location of bow member mould 1.The rate of flooding, of concrete can be obtained based on this
The Changing Pattern of the total body density of penetration concrete, and then the perfusion degree of compaction of concrete can be analyzed from side.
2. the comprehensive test of perfusion effect.
Tested by density measurement and mechanical index, on the one hand obtain the concrete physical mechanics of different parts in bow member mould 1
Index, carries out comparative evaluation to different parts filling concrete effect in bow member mould 1 according to this；Can be obtained by weighted average simultaneously
To total body density value and the bulk strength index of bow member mould 1 inner concrete, according to this perfusion effect of difference perfusion scheme is carried out
Comparative evaluation.Using following evaluation index: density value is the highest, perfusion effect is the best；Mechanical index such as axial compressive strength, glutinous
Poly-power etc. are the highest, and perfusion effect is the best.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should contain
Cover within protection scope of the present invention.
Claims (10)
1. a concrete filled steel tube bow member perfusion analog systems, it is characterized in that: include one by the assembled bow member mould of hollow steel pipe, described bow member mould is provided with the grout hole being connected with grouting system and for discharging the steam vent of excessive gas in bow member mould during at concrete perfusion, and is additionally provided with on described bow member mould along bow member mold axis one in front and one in back interlaced arrangement at the observation band of the front and back of bow member mould and the gravity sensor of the bottom being arranged on bow member mould；Described gravity sensor is connected with data collecting system.
2. concrete filled steel tube bow member perfusion analog systems as claimed in claim 1, it is characterised in that: described bow member mould is the combinative structure of the bow member shape assembled by steel pipe, and its global shape is circular, straight legs Semicircular arched or three-core arch；Its clean cross section is circular, square or rectangle.
3. concrete filled steel tube bow member perfusion analog systems as claimed in claim 1, it is characterized in that: described bow member mould is formed by telescopic joint by several sections of components, each section of each joint component is formed by connecting by transverse flange, and each section is to be formed by connecting by longitudinal flange by the steel pipe from axis vertical profile；Described bow member mould is the most dismantled and assembled at each sleeve pipe and flange.
4. concrete filled steel tube bow member perfusion analog systems as claimed in claim 1, it is characterised in that: described observation band is filled with transparent resin material after test bow member sidewall setting position cuts out strip hole and is formed.
5. concrete filled steel tube bow member perfusion analog systems as claimed in claim 1, it is characterised in that: described bow member mould is supported also by a support means, and described support means is made up of column, crossbeam, fixed-hinged support and hoist engine；Described crossbeam is fixed on column, at the identical height of column, respectively arranges a crossbeam, is front and back formed between two crossbeams and place and the interval of fixed arch frame mould；Described fixed-hinged support is arranged on column bottom, and described hoist engine passes through steel wire rope connecting cross beam, makes support means and bow member mould rotate centered by fixing hinge.
6. concrete filled steel tube bow member perfusion analog systems as claimed in claim 1, it is characterised in that: described grouting system includes concrete pump, grout pipe and grouting joint；Described concrete pump is by the grout hole described in described grout pipe and described grouting joint connection, and concrete pump irrigates the concrete of different mixture ratio in bow member mould.
7. concrete filled steel tube bow member perfusion analog systems as claimed in claim 6, it is characterised in that: it is provided with the check valve making the most unidirectional inflow device of concrete slurry and can not inversely flow out in described grouting joint.
8. concrete filled steel tube bow member perfusion analog systems as claimed in claim 6, it is characterised in that: described grouting system also includes a vibrator, and described vibrator is fixed on bow member mould.
9. the method that the slip casting effect of the concrete filled steel tube bow member perfusion analog systems described in pair claim 1 is tested and assessed, it is characterised in that:
As follows to the degree of compaction assessment method in filling process:
By the real-time monitoring weight of filling process and observation bar tape recording, obtain bow member mold weight delta data and filling concrete interface location intuitively；Obtain the Changing Pattern of total body density of the rate of flooding of concrete, penetration concrete based on this, and then analyze the perfusion degree of compaction of concrete from side.
10. the method that the slip casting effect of the concrete filled steel tube bow member perfusion analog systems described in pair claim 1 is tested and assessed, it is characterised in that: the Comprehensive measurement method of perfusion effect is as follows:
Irrigate rear maintenance to the prescribed time-limit, form removal, then the concrete of bow member mould different parts is cut, samples and numbers, measure the concrete dense angle value of numbering sample, the mechanical strength index of test No. sample, tested by described density measurement and mechanical index, on the one hand obtain the concrete mechanics index of physics of different parts in bow member mould, according to this filling concrete effect of different parts in bow member mould is carried out comparative evaluation；On the other hand obtained total body density value and the bulk strength index of bow member mould inner concrete by weighted average, according to this perfusion effect of difference perfusion scheme is carried out comparative evaluation；
The standard evaluated is: density value is the highest, and perfusion effect is the best；Mechanical index is the highest, and perfusion effect is the best.
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| CN109738018A (en) * | 2019-01-25 | 2019-05-10 | 中国铁建重工集团有限公司 | Detection device, perfusion situation detection method, trolley and readable storage medium storing program for executing |
| CN112962458B (en) * | 2021-02-04 | 2022-09-20 | 四川省公路规划勘察设计研究院有限公司 | Technical test method for pumping and pouring concrete in main arch tube of concrete-filled steel tube arch bridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202882942U (en) * | 2012-10-18 | 2013-04-17 | 山东大学 | Confined concrete quantifying yielding arch centering based on mining U-shaped steels |
| CN103048439A (en) * | 2012-12-04 | 2013-04-17 | 三峡大学 | Pressure grouting experiment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202882942U (en) * | 2012-10-18 | 2013-04-17 | 山东大学 | Confined concrete quantifying yielding arch centering based on mining U-shaped steels |
| CN103048439A (en) * | 2012-12-04 | 2013-04-17 | 三峡大学 | Pressure grouting experiment device |
Non-Patent Citations (1)
| Title |
|---|
| 大跨度钢筋混凝土拱桥拱架监测与模型对比分析;李荣建等;《黑龙江科技信息》;20100131(第1期);236 * |
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