CN113804572A - Grouting sleeve for detecting grouting fullness and grouting fullness detection method - Google Patents
Grouting sleeve for detecting grouting fullness and grouting fullness detection method Download PDFInfo
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- CN113804572A CN113804572A CN202110912807.2A CN202110912807A CN113804572A CN 113804572 A CN113804572 A CN 113804572A CN 202110912807 A CN202110912807 A CN 202110912807A CN 113804572 A CN113804572 A CN 113804572A
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- sleeve
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- grout
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 239000002002 slurry Substances 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000011440 grout Substances 0.000 claims description 34
- 230000005484 gravity Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003454 tympanic membrane Anatomy 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
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a grouting sleeve for detecting grouting fullness and a grouting fullness detection method. The grouting sleeve for detecting the grouting fullness comprises a sleeve and slurry arranged in the sleeve, and further comprises a detection piece arranged on the sleeve and a balance weight hung on the detection piece, wherein the balance weight is immersed in the slurry, and the detection piece is used for detecting the tension of the balance weight on the balance weight. When slurry in the sleeve leaks, the liquid level of the slurry is reduced, the volume of the counterweight immersed by the slurry is changed along with the slurry, and the buoyancy force borne by the counterweight is reduced along with the slurry, so that the tension force of the counterweight on the detection piece is changed. Therefore, real-time judgment of slurry leakage is realized.
Description
Technical Field
The invention relates to the field of highway bridge construction, in particular to a grouting sleeve for detecting grouting fullness and a grouting fullness detection method.
Background
With the advance of the industrialization process in China, the labor cost is continuously improved, and the requirements on sustainable development are met. The assembly type building is greatly popularized and supported by the nation and the industry due to the advantages of environmental protection, energy conservation, high degree of mechanization, construction condition improvement, production efficiency improvement, construction progress acceleration and the like. The connection between beam column nodes in the prefabricated concrete structure mainly depends on sleeve grouting connection, namely, steel bars to be connected are inserted into the metal sleeve for connection, and grouting material with high-strength early-strength micro-expansion characteristics is poured into the sleeve, so that the steel bars at two ends are connected into a whole, and the function of continuous steel bars in the cast-in-place concrete structure is achieved. However, in actual construction, the grout in the sleeve is easy to leak out, so that the product does not meet the quality standard.
Chinese patent CN111744822A provides a nondestructive testing means of a pre-embedded damping vibration sensor method, and the damping vibration method is adopted to detect the effective length of grouting material in a component connecting node, and the occurrence of quality defect proportion of the grouting material and the relevant relation between the sleeve connecting force values. The method cannot effectively detect slurry leakage, and if the grouting material is adhered to the tympanic membrane, the method has a great influence on the saturation detection precision.
Chinese patent CN109959713A,2019-07-02 provides a detection device and a detection method based on the grouting quality of a sleeve by a tapping method, namely a method for judging whether the grouting fullness of the sleeve is qualified or not by the natural frequency of the sleeve. The method cannot find problems in time and can only be used for post detection.
Disclosure of Invention
The invention aims to overcome the defect that the prior art cannot detect slurry leakage in real time, and provides a grouting sleeve for detecting grouting fullness and a grouting fullness detection method.
The invention solves the technical problems through the following technical scheme:
the utility model provides a detect grout plumpness's grout sleeve, includes the sleeve and locates thick liquids in the sleeve, still including locating detection piece on the sleeve with hang and locate counter weight on the detection piece, the counter weight soak in the thick liquids, the detection piece is used for detecting the pulling force of counter weight to it.
When slurry in the sleeve leaks, the liquid level of the slurry is reduced, the volume of the counterweight immersed by the slurry is changed along with the slurry, and the buoyancy force borne by the counterweight is reduced along with the slurry, so that the tension force of the counterweight on the detection piece is changed. Therefore, real-time judgment of slurry leakage is realized.
Preferably, the top end of the counterweight is flush with the liquid level of the slurry.
By adopting the structure, the buoyancy force borne by the counterweight after the counterweight is completely immersed by the slurry is constant, so that the gravity sensor can conveniently zero or determine the initial amount. Meanwhile, the sensor has good sensitivity, and the situation that slurry leaks and the data measured by the gravity sensor is unchanged can be avoided.
Preferably, the upper part of the sleeve is provided with a slurry inlet, and the top end of the counterweight is flush with the slurry inlet.
After grouting into the sleeve through the grout inlet, the liquid level of the grout can be just in the state of being flushed with the configuration top end, and the balance weight is kept flushed with the liquid level of the grout at the moment, so that the arrangement difficulty of the balance weight is simplified.
Preferably, the sleeve is also provided with a slurry outlet positioned below the slurry inlet.
Preferably, the detection part comprises a gravity sensor arranged at the top of the inner wall of the sleeve, and the counterweight is hung on the gravity sensor.
Preferably, the weight and the gravity sensor are connected through an elastic member.
Preferably, the counterweight and the gravity sensor are connected through a rigid part, and the rigid part can enable the gravity sensor to better detect the gravity change of the counterweight.
Preferably, the detecting member further comprises a computer electrically connected to the gravity sensor.
Preferably, the upper end and the lower end of the sleeve are provided with openings for the steel bars to penetrate.
The invention also provides a grouting fullness detection method, which comprises the following steps:
s10: immersing a counterweight hung on the detection piece into the slurry, and obtaining the immersed volume V of the counterweight according to the tension F measured by the detection piece and the mass m of the counterweight;
s20: and converting the volume V to obtain the volume percentage of the slurry.
Preferably, step S10 further includes:
the top end of the balance weight is flush with the slurry liquid level.
Preferably, step S20 includes: when the top end of the counterweight is level with the slurry liquid level, the volume of the immersed counterweight is defined as V0When V is equal to V0When the volume percentage of the slurry is 100%, the measured V is compared with V0The smaller the volume percent of the converted slurry decreases correspondingly.
Preferably, the mass m of the counterweight is measured by:
and naturally suspending the counter weight hung on the detection piece through the light spring, and calculating the mass m of the counter weight according to the elongation delta x of the light spring. By adopting the method, the mass of the balance weight can be accurately measured and calculated, and the subsequent measurement error caused by the fact that the balance weight is infected with slurry is avoided.
Preferably, before step S10, the method further includes the following steps:
inserting steel bars into the sleeves from two ends of the sleeves, installing the detection piece on the top wall of the sleeves, and hanging the balance weight on the detection piece through the light spring.
The positive progress effects of the invention are as follows:
adopt the scheme that detects grout plumpness through buoyancy, equipment is simple, and convenient operation can carry out real-time detection to the quality of grout, more can avoid causing the erroneous judgement because of reasons such as leaking thick liquid less thick liquid, and the testing result is accurate.
Drawings
FIG. 1 is a schematic view of the present invention;
description of reference numerals:
gravity sensor 1
Reinforcing bar 2
Slurry inlet 4
Slurry 5
Grout outlet 6
Counterweight 7
Light spring 8
Signal amplifier 9
Detecting member 10
Power supply 11
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1, a grouting sleeve 3 for detecting grouting fullness comprises a sleeve 3, fluid slurry 5 filled in the sleeve 3, openings formed in the upper end and the lower end of the sleeve 3 and used for inserting steel bars 2, the steel bars 2 inserted in the sleeve 3 from the openings formed in the upper end and the lower end of the sleeve 3, a detection piece 10 arranged on the sleeve 3 and a counterweight 7 hung on the detection piece 10, wherein the counterweight 7 is immersed in the slurry 5.
When slurry 5 in the sleeve 3 leaks, the liquid level of the slurry 5 is reduced, the volume of the counterweight 7 immersed by the slurry 5 is changed, the buoyancy force borne by the counterweight 7 is reduced, and therefore the tension force of the counterweight 7 on the detection piece 10 is changed. Thereby enabling real-time monitoring of slurry 5 leakage.
Preferably, the weight 7 is completely submerged in the slurry 5, and the top end of the weight 7 is flush with the surface of the slurry 5. Compared with the scheme that the counterweight 7 is partially immersed in the slurry 5, the buoyancy force applied to the counterweight 7 after being completely immersed in the slurry 5 is constant, so that the gravity sensor 1 can be conveniently zeroed or the initial amount can be determined. Compared with the scheme that the counterweight 7 is completely immersed in the slurry 5 and the top end of the counterweight 7 is at a certain distance from the liquid level, the method has better sensitivity, and the situation that the slurry 5 leaks and the data measured by the gravity sensor 1 is not changed can be avoided.
Preferably, the upper part of the side wall of the sleeve 3 is provided with a slurry inlet 4, the lower part of the side wall of the sleeve 3 is provided with a slurry outlet 6, and the top end of the balance weight 7 is flush with the slurry inlet 4. After grouting into the sleeve 3 through the grout inlet 4, the liquid level of the grout 5 can be just in a state of being flush with the top end of the configuration, and the balance weight 7 is also kept flush with the liquid level of the grout 5 at the moment, so that the arrangement difficulty of the balance weight 7 is simplified.
The detecting member 10 includes a gravity sensor 1, a transmission cable, a signal amplifier 9, a computer 12 and a power source 11. The gravity sensor 1 is adhered to the top wall of the sleeve 3. A power supply 11 is connected to the gravity sensor 1. One end of the transmission cable is electrically connected with the gravity sensor 1, and the other end of the transmission cable penetrates through a small hole in the top of the sleeve 3 and is electrically connected with a signal amplifier 9 outside the sleeve 3. The computer 12 is electrically connected to the signal amplifier 9.
Specifically, this gravity sensor 1 is pasted by resistance strain type sensor and is connected the elastic beam and constitute, and is encapsulated in 3cm of side length, thickness 0.5-1 cm's square box, pastes on 3 roof walls of sleeve through the AB glue, adopts the less encapsulation of volume can reduce the calculation deviation to the height that counter weight 7 was located.
The counterweight 7 is spherical, the diameter of the counterweight is 3cm, the counterweight comprises a stainless steel inner core and a Teflon spherical shell wrapping the stainless steel inner core, and the density of the stainless steel inner core is larger than or equal to that of the slurry 5, so that the counterweight can be immersed in the slurry 5. Teflon has the characteristics of being not sticky to water and dry and wet concrete, and is not easy to adhere to the slurry 5. The weight 7 may be suspended from the gravity sensor 1 by an elastic member such as a spring or a cord, or may be connected to the gravity sensor 1 by a rigid member such as a connecting rod, and in the present invention, the weight 7 is suspended from the gravity sensor 1 by a light spring 8.
The invention also provides a grouting fullness detection method based on the structure, which comprises the following steps:
and S10, inserting the reinforcing steel bar 2 into the sleeve 3 from the openings at the two ends of the sleeve, mounting the detecting piece 10 on the top wall of the sleeve 3, and hanging the balance weight 7 on the detecting piece 10 through the light spring 8.
S20, the counterweight 7 is suspended naturally, the elongation delta x of the spring is measured, and the mass m of the counterweight 7 is calculated through the formula 1, wherein the formula 1 is as follows: m is k · Δ x/g, where k is the elastic coefficient of the light spring 8, and g is the gravitational acceleration;
s30, pouring the slurry 5, immersing the counterweight 7 in the slurry 5, making the top end of the counterweight 7 level with the liquid level of the slurry 5, and calculating the immersed volume V of the counterweight 7 in real time according to the formula 2 and the tension F measured by the gravity sensor 10The formula 2 is: v0(mg-F)/ρ g, where m is the mass of the weight 7, ρ is the density of the slurry 5, and g is the acceleration of gravity;
s40, converting the volume percentage of the slurry according to the immersed volume V of the counterweight 7, and defining V-V0The volume percentage of the slurry is 100%, when the measured V is reduced, the volume percentage of the slurry obtained by conversion is reduced, and a conversion formula between the V and the volume percentage of the slurry is obtained by computer fitting, which belongs to the conventional prior art and is not further described herein;
s50, the volume percent of the slurry is displayed on the computer.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (14)
1. The utility model provides a detect grout plumpness's grout sleeve, includes the sleeve and locates thick liquids in the sleeve, its characterized in that: the slurry detection device is characterized by further comprising a detection piece arranged on the sleeve and a balance weight hung on the detection piece, wherein the balance weight is immersed in the slurry, and the detection piece is used for detecting the tension of the balance weight on the detection piece.
2. A grout sleeve for detecting grout fullness as claimed in claim 1, wherein: the top end of the counterweight is flush with the liquid level of the slurry.
3. A grout sleeve for detecting grout fullness as claimed in claim 1, wherein: the upper part of the sleeve is provided with a pulp inlet, and the top end of the counterweight is flush with the pulp inlet.
4. A grout sleeve for detecting grout fullness as claimed in claim 3, wherein: the sleeve is also provided with a slurry outlet positioned below the slurry inlet.
5. A grout sleeve for detecting grout fullness as claimed in claim 1, wherein: the detection piece comprises a gravity sensor arranged at the top of the inner wall of the sleeve, and the counterweight is hung on the gravity sensor.
6. A grout sleeve for detecting grout fullness as claimed in claim 5, wherein: the counterweight is connected with the gravity sensor through an elastic piece.
7. A grout sleeve for detecting grout fullness as claimed in claim 6, wherein: the elastic piece is a light spring.
8. A grout sleeve for detecting grout fullness as claimed in claim 5, wherein: the detection piece further comprises a computer electrically connected with the gravity sensor.
9. A grout sleeve for detecting grout fullness as claimed in claim 1, wherein: and the upper end and the lower end of the sleeve are provided with openings for the penetration of reinforcing steel bars.
10. A grouting fullness detection method is characterized by comprising the following steps:
s10: immersing a counterweight hung on a detection piece into the slurry, and obtaining the immersed volume V of the counterweight according to the tensile force F measured by the detection piece in real time and the mass m of the counterweight;
s20: and converting the volume V to obtain the volume percentage of the slurry.
11. The grout fullness detection method of claim 10, wherein: step S10 further includes:
and the top end of the balance weight is flush with the liquid level of the slurry.
12. The grout fullness detection method of claim 11, wherein: step S20 includes: when the top end of the counterweight is level with the slurry liquid level, the volume of the immersed counterweight is defined as V0When V is equal to V0When the volume percentage of the slurry is 100%, the measured volume V is compared with V0The smaller the volume percent of the converted slurry decreases correspondingly.
13. The grout fullness detection method of claim 10, wherein: the mass m of the counterweight is measured by:
and naturally suspending the counter weight hung on the detection piece through the light spring, and calculating the mass m of the counter weight according to the elongation delta x of the light spring.
14. The grout fullness detection method of claim 13, wherein: the method also comprises the following steps before the step S10:
inserting steel bars into the sleeve from two ends of the sleeve, mounting the detection piece on the top wall of the sleeve, and hanging the balance weight on the detection piece through the light spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912807.2A CN113804572A (en) | 2021-08-10 | 2021-08-10 | Grouting sleeve for detecting grouting fullness and grouting fullness detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912807.2A CN113804572A (en) | 2021-08-10 | 2021-08-10 | Grouting sleeve for detecting grouting fullness and grouting fullness detection method |
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| CN113804572A true CN113804572A (en) | 2021-12-17 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0943027A (en) * | 1995-07-26 | 1997-02-14 | Mac Sci:Kk | Liquid-surface-level sensor |
| JP2005091299A (en) * | 2003-09-19 | 2005-04-07 | Nippon Ps:Kk | Grout quality management test device |
| CN101046436A (en) * | 2006-03-31 | 2007-10-03 | 上海神开石油科技有限公司 | Mudstone density measuring process |
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
| CN110243430A (en) * | 2019-07-29 | 2019-09-17 | 北京市政路桥股份有限公司 | A kind of groundwater level monitoring device |
| CN212432441U (en) * | 2020-07-15 | 2021-01-29 | 浙江元兴工程顾问有限公司 | Grouting sleeve leaks thick liquid detection device for hydraulic engineering supervision |
| CN113219051A (en) * | 2020-01-21 | 2021-08-06 | 北京智博联科技股份有限公司 | Grouting fullness detection device and detection method thereof |
-
2021
- 2021-08-10 CN CN202110912807.2A patent/CN113804572A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0943027A (en) * | 1995-07-26 | 1997-02-14 | Mac Sci:Kk | Liquid-surface-level sensor |
| JP2005091299A (en) * | 2003-09-19 | 2005-04-07 | Nippon Ps:Kk | Grout quality management test device |
| CN101046436A (en) * | 2006-03-31 | 2007-10-03 | 上海神开石油科技有限公司 | Mudstone density measuring process |
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
| CN110243430A (en) * | 2019-07-29 | 2019-09-17 | 北京市政路桥股份有限公司 | A kind of groundwater level monitoring device |
| CN113219051A (en) * | 2020-01-21 | 2021-08-06 | 北京智博联科技股份有限公司 | Grouting fullness detection device and detection method thereof |
| CN212432441U (en) * | 2020-07-15 | 2021-01-29 | 浙江元兴工程顾问有限公司 | Grouting sleeve leaks thick liquid detection device for hydraulic engineering supervision |
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Application publication date: 20211217 |