CN110006329A - The unstressed meter test device of waterproof and installation method inside large volume low-heat concrete - Google Patents
The unstressed meter test device of waterproof and installation method inside large volume low-heat concrete Download PDFInfo
- Publication number
- CN110006329A CN110006329A CN201910309564.6A CN201910309564A CN110006329A CN 110006329 A CN110006329 A CN 110006329A CN 201910309564 A CN201910309564 A CN 201910309564A CN 110006329 A CN110006329 A CN 110006329A
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- China
- Prior art keywords
- sleeve
- rubber pad
- strain gauge
- outlet hole
- large volume
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000010426 asphalt Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000002689 soil Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005401 pressed glass Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
Abstract
The invention discloses the unstressed meter test devices of waterproof inside a kind of large volume low-heat concrete, are related to test device.It includes the sleeve, the strain gauge in sleeve, cylinder lamina tecti, the rubber pad on cylinder lamina tecti, the seal cover board on rubber pad positioned at sleeve nozzle of vertical setting；Sleeve is the double-deck cylindrical structure, has packing material between sleeve inner/outer tube, the inner tube wall of sleeve has bitumen layer；Strain gauge is suspended on the middle and lower part in sleeve, and the axis of strain gauge and the axis of sleeve coincide；There is the first outlet hole at rubber pad center, and there is the second outlet hole at seal cover board center, there is sealing bolt on the second outlet hole, and the cable on strain gauge sequentially passes through the first outlet hole, the second outlet hole and sealing bolt.The advantages of the configuration of the present invention is simple, easy to process, installation operation is convenient, can unify production and processing in batches, production cost is effectively reduced.The present invention is being related to the installation method of the unstressed meter test device of waterproof inside this large volume low-heat concrete.
Description
Technical field
The present invention relates to a kind of test devices, more specifically say it is inside a kind of large volume low-heat concrete waterproof without answering
Power meter test device is mainly used for studying inside large volume low-heat concrete free volume deformation characteristic under waterproof environment.This hair
The bright installation method for further relating to the unstressed meter test device of waterproof inside this large volume low-heat concrete
Background technique
Unstressed meter is deformed for measuring the free volume of mass concrete.Bilayer is generally adopted by monitoring process
Conical tube or cylindrical tube
Existing embedding manner nozzle is upward, and nozzle and mass concrete are linked to be entirety, more or less can be by warm outside cylinder
The influence of outer (nozzle) stress variation of degree, humidity, cylinder, has some limitations, and is unable to satisfy the deformation of low-heat concrete bulking
Special unstressed meter testing research needs.It is asked currently in order to scientifically, reasonably solving special unstressed meter systems device installation
Topic reduces or excludes above-mentioned factor interference, and accurately and reliably studies inside large volume low-heat concrete and mix under the conditions of waterproof
Solidifying soil free volume deformation rule, now in conjunction with specification, technical requirement on design and site operation environmental condition, it is necessary to biography
Unstressed meter cylinder of uniting is redesigned, is transformed, is perfect.
Summary of the invention
The first object of the present invention is and to provide a kind of large volume low-heat to overcome the shortcoming of above-mentioned background technology
Meter test device that inside concrete waterproof is unstressed.
The second object of the present invention is to provide for the unstressed measurement trial assembly of waterproof inside this large volume low-heat concrete
The installation method set.
In order to realize above-mentioned first purpose, the technical solution of the present invention is as follows: waterproof is without answering inside large volume low-heat concrete
Power meter test device, it is characterised in that: the sleeve including vertical setting, the strain gauge in sleeve, positioned at sleeve nozzle
Cylinder lamina tecti, the rubber pad on cylinder lamina tecti, the seal cover board on rubber pad；The sleeve is the double-deck cylinder knot
Structure has packing material between sleeve inner/outer tube, and the inner tube wall of sleeve has bitumen layer；
The strain gauge is suspended on the middle and lower part in sleeve, and the axis of strain gauge and the axis of sleeve coincide；
There is the first outlet hole at the rubber pad center, and there is the second outlet hole at seal cover board center, has on the second outlet hole close
Bolt is sealed, the cable on strain gauge sequentially passes through the first outlet hole, the second outlet hole and sealing bolt.
In the above-mentioned technical solutions, steel wire and lower steel wire are provided in the sleeve inner cylinder；The top of the strain gauge
It is connect with upper steel wire, bottom is connect with lower steel wire.
In the above-mentioned technical solutions, there are multiple holes on the circumference of rubber pad and seal cover board.
In the above-mentioned technical solutions, a height of 500mm of the sleeve, sleeve outer barrel diameter 400mm, sleeve inner diameter of steel flue
320mm, asphalt thickness 10mm；Rubber pad diameter 400mm, thickness 10mm；The seal cover board diameter 500mm, thickness
1.2mm。
In the above-mentioned technical solutions, the packing material is sawdust or filled and process, with a thickness of 40mm.
In order to realize above-mentioned second purpose, the technical solution of the present invention is as follows: waterproof inside installation large volume low-heat concrete
The method of unstressed meter test device, which comprises the following steps:
Step 1: the nozzle of sleeve is upward, and sleeve axis keeps vertical direction；Strain gauge is passed through into upper steel wire and lower steel
Silk is suspended on the middle and lower part of sleeve inner cylinder, and the axis of strain gauge and the axis of sleeve is made to coincide；
Step 2: concrete backfill being entered in sleeve inner cylinder, and ensures that concrete reaches dense state；
Step 3: when concrete backfill to cylinder lamina tecti, cable being passed through into the first outlet hole, the second outlet hole and sealing spiral shell
Bolt adjusts cable length by sealing bolt, then fixes screwing hermetic bolt；
Step 4: being placed on rubber pad and seal cover board are smooth on a lamina tecti, the hole phase on rubber pad and seal cover board
It is overlapped；
Step 5: rivet clasp being carried out to the hole on rubber pad and seal cover board by rivet, completes installation.
The present invention can effectively solve the problem that unstressed meter under the conditions of large volume low-heat concrete waterproof, is really measured in cylinder and mixed
The unstressed strain that solidifying soil is not acted on by factors such as external stress and humidity, that is, measure comparatively ideal concrete in waterproof environment item
Free volume deformation under part.The present invention is simple, easy to process with structure, installation operation is convenient, can unify production in batches and add
Work, the advantages of production cost is effectively reduced.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is in-site installation figure of the present invention.
Fig. 3 is 11 scene sealing figure of cylinder lamina tecti of the present invention.
Fig. 4 is the embedded figure of multiple in-site installations of the present invention.
1- sleeve, 11- lamina tectis, 12- packing material, 13- bitumen layer, the upper steel wire of 141-, steel wire under 142-, 2- strain
Meter, 21- cable, 3- rubber pad, the first outlet hole of 31-, 4- seal cover board, the second outlet hole of 41-, 42- sealing bolt, the hole 5-.
Specific embodiment
The performance that the invention will now be described in detail with reference to the accompanying drawings, but they and do not constitute a limitation of the invention, only
It is for example.Advantages of the present invention is set to will become clearer and be readily appreciated that by explanation simultaneously.
Refering to known to attached drawing: the unstressed meter test device of waterproof inside large volume low-heat concrete, including vertical setting
Sleeve 1, the strain gauge 2 in sleeve 1, the cylinder lamina tecti 11 positioned at 1 nozzle of sleeve, the rubber pad on cylinder lamina tecti 11
3, the seal cover board 4 on rubber pad 3；The sleeve 1 is the double-deck cylindrical structure, has packing material between 1 inner/outer tube of sleeve
12, the inner tube wall of sleeve 1 has bitumen layer 13；The double-layer structure of sleeve 1 plays the role of that inside and outside concrete is isolated, and makes mixed in cylinder
Solidifying soil and strain gauge 2 be not by external force load action；
The strain gauge 2 is suspended on the middle and lower part in sleeve 1, and the axis of the axis and sleeve 1 of strain gauge 2 coincides；
There is the first outlet hole 31 at 3 center of rubber pad, and there are the second outlet hole 41, the second outlet hole in 4 center of seal cover board
There is sealing bolt 42 on 41, the cable 21 on strain gauge 2 sequentially passes through the first outlet hole 31, the second outlet hole 41 and sealing bolt
42。
Steel wire 141 and lower steel wire 142 are provided in 1 inner cylinder of sleeve；The top of the strain gauge 2 and upper steel wire
141 connections, bottom is connect with lower steel wire 142.
There are multiple rivet holes 5 on the circumference of rubber pad 3 and seal cover board 4；Nozzle upper rubber pad 3 and seal cover board 4
After carrying out rivet clasp, play the role of exchanging internal and external humidity and be isolated, make inner concrete under waterproof environmental condition, obtains true
Reliable monitoring test achievement.
The a height of 500mm of the sleeve 1,1 outer barrel diameter 400mm of sleeve, 1 inner diameter of steel flue 320mm of sleeve, 13 thickness of bitumen layer
10mm；Rubber pad 3 diameter 400mm, thickness 10mm；The 4 diameter 400mm of seal cover board, thickness 1.2mm.
The packing material 12 is sawdust or filled and process, with a thickness of 40mm.
The method for installing the unstressed meter test device of waterproof inside large volume low-heat concrete, comprising the following steps:
Step 1: the nozzle of sleeve 1 is upward, and 1 axis of sleeve keeps vertical direction；String formula readout instrument is used to strain gauge 2
(or poor resistive electric bridge) carries out installing preceding observation, and records data, and measured value is normal, can use, and strain gauge 2 is passed through upper steel wire
141 and lower steel wire 142 be suspended on the middle and lower part of 1 inner cylinder of sleeve, 2 bottom flange dish of strain gauge away from 1 inner cylinder bottom about 100mm of sleeve,
And the axis of strain gauge 2 and the axis of sleeve 1 is made to coincide；
Step 2: taking concrete (the artificial aggregate for rejecting 8cm or more) the successively backfill of unstressed meter cylinder periphery with storehouse batch
In in cylinder, blanking avoids pounding when backfilling or the sensor of strains of impact meter 2, and is manually vibrated using small-sized vibrating spear,
Ensure that filled out concrete reaches dense state.And be observed at any time, it is replaced in time if strain gauge 2 breaks down；
Step 3: when concrete backfill to cylinder lamina tecti 11, cable 21 being passed through into the first outlet hole 31, the second outlet hole 41
With sealing bolt 42,21 length of cable is adjusted by sealing bolt 42, then fixes screwing hermetic bolt 42；
Step 4: smearing enough glass cements on cylinder lamina tecti 11, while by rubber pad 3 and the smooth placement of seal cover board 4
Onto cylinder lamina tecti 11, pressed glass glue, and keep rubber pad 3 and seal cover board 4 perfectly aligned with 1 nozzle edge of sleeve；Rotation
Turn seal cover board 4, the rivet hole 5 reserved on the rivet hole 5 and seal cover board 4 reserved on rubber pad 3 is made to coincide；
Step 5: using portable hand electric drill, be directed at each rivet hole 5 and drill, downwards until drilling a lamina tecti
11；Using rivet and riveting gun, uniform rivet clasp is carried out to the rivet hole 5 on 4 circumference of seal cover board；Using string formula readout instrument (or
Poor resistive electric bridge) installed after observe, and record data, measured value is normally then completed to install, finally by technical requirements traction and
Protect cable 21.
Other unaccounted parts belong to the prior art.
Claims (6)
1. the unstressed meter test device of waterproof inside large volume low-heat concrete, it is characterised in that: the sleeve including vertical setting
(1), it is located at the strain gauge (2) in sleeve (1), the cylinder lamina tecti (11) for being located at sleeve (1) nozzle, is located on cylinder lamina tecti (11)
Rubber pad (3), be located at rubber pad (3) on seal cover board (4)；The sleeve (1) is the double-deck cylindrical structure, and sleeve (1) is interior
Have between outer cylinder packing material (12), the inner tube wall of sleeve (1) there are bitumen layer (13)；
The strain gauge (2) is suspended on the middle and lower part in sleeve (1), and the axis of strain gauge (2) is mutually be overlapped with the axis of sleeve (1)
It closes；
Rubber pad (3) center has the first outlet hole (31), and seal cover board (4) center has the second outlet hole (41), and second goes out
Have in string holes (41) sealing bolt (42), the cable (21) on strain gauge (2) sequentially passes through the first outlet hole (31), the second outlet
Hole (41) and sealing bolt (42).
2. the unstressed meter test device of waterproof inside large volume low-heat concrete according to claim 1, it is characterised in that:
Steel wire (141) and lower steel wire (142) are provided in sleeve (1) inner cylinder；The top of the strain gauge (2) and upper steel wire
(141) it connects, bottom is connect with lower steel wire (142).
3. the unstressed meter test device of waterproof inside large volume low-heat concrete according to claim 1 or 2, feature exist
In: there are multiple holes (5) on the circumference of rubber pad (3) and seal cover board (4).
4. the unstressed meter test device of waterproof inside large volume low-heat concrete according to claim 3, it is characterised in that:
The a height of 500mm of the sleeve (1), sleeve (1) outer barrel diameter 400mm, sleeve (1) inner diameter of steel flue 320mm, bitumen layer (13) thickness
10mm；Rubber pad (3) diameter 400mm, thickness 10mm；Seal cover board (4) the diameter 400mm, thickness 1.2mm.
5. the unstressed meter test device of waterproof inside large volume low-heat concrete according to claim 4, it is characterised in that:
The packing material (12) is sawdust or filled and process, with a thickness of 40mm.
6. the method for installing the unstressed meter test device of waterproof inside large volume low-heat concrete, which is characterized in that including following
Step:
Step 1: the nozzle of sleeve (1) is upward, and sleeve (1) axis keeps vertical direction；Strain gauge (2) is passed through into upper steel wire
(141) and lower steel wire (142) is suspended on the middle and lower part of sleeve (1) inner cylinder, and makes the axis of strain gauge (2) and the axis of sleeve (1)
Line coincides；
Step 2: concrete backfill being entered in sleeve (1) inner cylinder, and ensures that concrete reaches dense state；
Step 3: when concrete backfill to cylinder lamina tecti (11), cable (21) being passed through into the first outlet hole (31), the second outlet hole
(41) and sealing bolt (42) cable (21) length, is adjusted by sealing bolt (42), then fixes screwing hermetic bolt (42)；
Step 4: being placed on rubber pad (3) and seal cover board (4) are smooth on a lamina tecti (11), rubber pad (3) and sealing cover
Hole (5) on plate (4) coincides；
Step 5: rivet clasp being carried out to the hole (5) on rubber pad (3) and seal cover board (4) by rivet, completes installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309564.6A CN110006329A (en) | 2019-04-17 | 2019-04-17 | The unstressed meter test device of waterproof and installation method inside large volume low-heat concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309564.6A CN110006329A (en) | 2019-04-17 | 2019-04-17 | The unstressed meter test device of waterproof and installation method inside large volume low-heat concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110006329A true CN110006329A (en) | 2019-07-12 |
Family
ID=67172572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910309564.6A Pending CN110006329A (en) | 2019-04-17 | 2019-04-17 | The unstressed meter test device of waterproof and installation method inside large volume low-heat concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110006329A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5487307A (en) * | 1994-02-10 | 1996-01-30 | Kalman Floor Company, Inc. | Method and apparatus for testing concrete expansion |
| JP2001324302A (en) * | 2000-05-15 | 2001-11-22 | Kyowa Electron Instr Co Ltd | Concrete embedded type strain gage and method for measuring strain of concrete |
| JP2004093402A (en) * | 2002-08-30 | 2004-03-25 | Yoshiaki Sato | Concrete shrinkage crack test apparatus |
| CN101710007A (en) * | 2009-12-10 | 2010-05-19 | 陈新 | Concrete wall body expansion internal stress measuring sensor and measuring method |
| CN201653600U (en) * | 2010-03-24 | 2010-11-24 | 国网电力科学研究院 | Isolated strain-free meter |
| CN204461342U (en) * | 2015-02-09 | 2015-07-08 | 安徽科技学院 | A kind of hot-press solidifying device of strain measurement |
| CN108593896A (en) * | 2018-05-04 | 2018-09-28 | 中国水利水电科学研究院 | Fully graded concrete is unstressed strain gauge means and measurement method |
| CN109212171A (en) * | 2018-11-19 | 2019-01-15 | 太原理工大学 | Architectural engineering concrete self-shrinkage rate measuring device and method |
| CN209961162U (en) * | 2019-04-17 | 2020-01-17 | 长江空间信息技术工程有限公司(武汉) | Testing device for moisture-insulating stress-free meter in large-volume low-heat concrete |
-
2019
- 2019-04-17 CN CN201910309564.6A patent/CN110006329A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5487307A (en) * | 1994-02-10 | 1996-01-30 | Kalman Floor Company, Inc. | Method and apparatus for testing concrete expansion |
| JP2001324302A (en) * | 2000-05-15 | 2001-11-22 | Kyowa Electron Instr Co Ltd | Concrete embedded type strain gage and method for measuring strain of concrete |
| JP2004093402A (en) * | 2002-08-30 | 2004-03-25 | Yoshiaki Sato | Concrete shrinkage crack test apparatus |
| CN101710007A (en) * | 2009-12-10 | 2010-05-19 | 陈新 | Concrete wall body expansion internal stress measuring sensor and measuring method |
| CN201653600U (en) * | 2010-03-24 | 2010-11-24 | 国网电力科学研究院 | Isolated strain-free meter |
| CN204461342U (en) * | 2015-02-09 | 2015-07-08 | 安徽科技学院 | A kind of hot-press solidifying device of strain measurement |
| CN108593896A (en) * | 2018-05-04 | 2018-09-28 | 中国水利水电科学研究院 | Fully graded concrete is unstressed strain gauge means and measurement method |
| CN109212171A (en) * | 2018-11-19 | 2019-01-15 | 太原理工大学 | Architectural engineering concrete self-shrinkage rate measuring device and method |
| CN209961162U (en) * | 2019-04-17 | 2020-01-17 | 长江空间信息技术工程有限公司(武汉) | Testing device for moisture-insulating stress-free meter in large-volume low-heat concrete |
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| Title |
|---|
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