CN108007764A - Lower embedding type concrete component intensity Indirect testing devices and methods therefor - Google Patents
Lower embedding type concrete component intensity Indirect testing devices and methods therefor Download PDFInfo
- Publication number
- CN108007764A CN108007764A CN201711471443.9A CN201711471443A CN108007764A CN 108007764 A CN108007764 A CN 108007764A CN 201711471443 A CN201711471443 A CN 201711471443A CN 108007764 A CN108007764 A CN 108007764A
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- CN
- China
- Prior art keywords
- concrete component
- reisilometer
- support rod
- embedding type
- type concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000007689 inspection Methods 0.000 claims abstract description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
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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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of lower embedding type concrete component intensity Indirect testing device, including supporting rod, spring, support rod bush, reisilometer, fixture；The support rod bush is sleeved on outside supporting rod, and support rod bush is fixedly connected laterally across fixture with reisilometer, and reisilometer is arranged in parallel with support rod bush；Spring, which is arranged, to be installed on outside supporting rod, and positioned at the lower section of fixture；Support rod bush can drive reisilometer around rod to rotate, and radius of turn is less than the radius of the instrument connection from ground to concrete component.The present invention is in implementation process without lower embedding type concrete component earthing is all excavated, it is only necessary to which, to detection position soil body part pore-forming to surface of concrete structure, detection is simple, saves substantial amounts of manpower and financial resources.The protection of ecological environment is also beneficial at the same time.The instrument connection of formation is after one-time detection, ordinary circumstance, it is not necessary to and backfilled, a pipe cap need to be only added on casing, can be repeatedly used, it is convenient periodically to carry out concrete strength inspection.
Description
Technical field
The present invention relates to urban infrastructure construction field, and in particular to a kind of lower embedding type concrete component intensity it is non-
Excavate detection device and its method.
Background technology
Lower embedding type concrete structure, mainly includes Underground Culvert, underground conservation pool etc..These concrete structures are long-term
Under harsh environment in a variety of physics, chemistry and biological corrosion source, weathering Erosion easily gradually occurs for concrete, so as to reduce
The intensity of concrete, it is therefore necessary to be periodically detected to the intensity of lower embedding type concrete structure.
At present, when carrying out the detection of lower embedding type concrete component intensity, it is common practice that plate top earthing large area is opened
Dig, testing staff carries out intensity detection work on the exposed concrete slab surface of large area.Need to backfill after test, it is time-consuming, take
It is power, of high cost, while can also have a degree of destruction to urban environment.
The content of the invention
It is an object of the invention to provide device and the side that a kind of lower embedding type concrete component intensity carries out Indirect testing
Method, while reaching testing goal, mitigates the labor intensity of intensity detection work, destruction when mitigating detection to ecological environment.
The present invention takes following technical scheme：
A kind of Indirect testing device of lower embedding type concrete component intensity, including supporting rod 10, spring 11, supporting rod
Casing 7, reisilometer 1, fixture 2；The support rod bush 7 is sleeved on outside supporting rod 10, and support rod bush 7 is laterally across fixture 2
It is fixedly connected with reisilometer 1, reisilometer 1 is arranged in parallel with support rod bush 7；Spring 11, which is arranged, to be installed on outside supporting rod 10,
And positioned at the lower section of fixture 2；Support rod bush 7 can drive 1 around rod of reisilometer to rotate, and radius of turn is less than from ground to mixed
The radius of the instrument connection of solidifying soil component.
Further, foot stool 9 is further included, the foot stool is fixed on outside support rod bush 7, and is supported on level ground
On.
Further, handle 8 is also fixedly installed outside the support rod bush 7.
Further, guide sleeve 5 is further included, the guide sleeve 5 is fixed on outside support rod bush 7, reisilometer 1
On its interior, 5 outside diameter of guide sleeve is equal to or slightly less than the open pore size that concrete surface is buried on ground under.
Further, dial 6 is also arranged outside the support rod bush 7,6 outside diameter of dial is more than guide sleeve
5, and the upper end that the perforate of concrete surface is buried on ground under can be covered in.
Further, 5 bottom of guide sleeve is equipped with antipriming 12.
Further, the fixture 2 is connected by nut 3 and a pair of of screw rod 4 with support rod bush 7,3 energy of rotating nut
Enough adjust the rotating radius of 1 around rod of reisilometer.
A kind of application method of the Indirect testing device of above-mentioned lower embedding type concrete component intensity, including following step
Suddenly：
S1, form circular hole on the ground, until lower embedding type concrete component upper surface；
The lower embedding type concrete component intensity Indirect testing device, be inserted into the circular hole by S2；
S3, overcome 11 elastic force of spring to press down on handle 8, and reisilometer 1 carries out intensity detection；
S4, the position by rotating the support change fixture 2 of rod bush 7 and/or the spacing for changing fixture 2 and supporting rod 10
Measure multiple measuring points.
Further, in step S4, the quantity of the measuring point is at least 16.
Further, in institute step S4, the reisilometer 1 detects the functional unit of data or with biography with storage
The functional unit of defeated detection data.
The beneficial effects of the present invention are：
1) lower embedding type concrete component intensity Indirect testing device in implementation process only need to soil body part pore-forming,
Detection is simple, is excavated without large area, to avoid detection risk and can reduce engineering cost, while to the influence of ecological environment
It is smaller；
2) detection hole can retain, and repeatedly use, and recover original appearance without earthing, be conducive to long-time periodic detection,
Further reduce the workload of detection；
Brief description of the drawings
Fig. 1 is the front view of lower embedding type concrete component intensity Indirect testing device of the present invention.
Fig. 2 is schematic diagram when lower embedding type concrete component intensity Indirect testing device of the present invention is detected.
Fig. 3 is the schematic diagram that reisilometer is connected by screw rod and nut with support rod bush, can be adjusted by rotating nut
Reisilometer is saved with supporting the distance between rod bush, and then adjusts the radius that reisilometer around rod rotates.
In figure, 1. reisilometers, 2. fixtures, 3. nuts, 4. screw rods, 5. guide sleeves, 6. dials, 7. support rod bush,
8. handle, 9. foot stools, 10. supporting rods, 11. springs, 12. antiprimings, 13. soil layers, 14. lower embedding type concrete components.
Embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1-Fig. 3, a kind of lower embedding type concrete component intensity Indirect testing device, including supporting rod 10, spring
11st, rod bush 7, reisilometer 1, fixture 2 are supported；The support rod bush 7 is sleeved on outside supporting rod 10, and support rod bush 7 is laterally
It is fixedly connected by fixture 2 with reisilometer 1, reisilometer 1 is arranged in parallel with support rod bush 7；Spring 11, which is arranged, is installed on support
Outside bar 10, and positioned at the lower section of fixture 2；Support rod bush 7 can drive 1 around rod of reisilometer to rotate, and radius of turn is less than
From ground to the aperture of the circular hole of concrete component.
Referring to Fig. 1-Fig. 2, foot stool 9 is further included, the foot stool is fixed on outside support rod bush 7, and is supported on flatly
On face.
Referring to Fig. 1-Fig. 2, handle 8 is also fixedly installed outside the support rod bush 7.
Referring to Fig. 2, guide sleeve 5 is further included, the guide sleeve 5 is fixed on outside support rod bush 7, reisilometer 1
Portion in the inner, 5 outside diameter of guide sleeve are equal to or slightly less than the open pore size that concrete surface is buried on ground under.
Referring to Fig. 2, dial 6 is also arranged outside the support rod bush 7,6 outside diameter of dial is more than guide sleeve 5, and
The upper end that the perforate of concrete surface is buried on ground under can be covered in.
Referring to Fig. 2,5 bottom of guide sleeve is equipped with antipriming 12.
Referring to Fig. 3, the fixture 2 is connected by nut 3 and a pair of of screw rod 4 with support rod bush 7, and rotating nut 3 can
Adjust the rotating radius of 1 around rod of reisilometer.
Reisilometer 1 is digital display integral reisilometer.
When it is implemented, it is divided into following steps：
Step 1：An aperture is drilled out or dug out on the ground using microdrill or Luoyang Spade；
Step 2：Guide sleeve 5 is inserted into aperture, sleeve bottom is provided with antipriming 12, and and concrete component
Intimate surface contact；
Step 3：Unnecessary soil and water in casing are removed, keeps the smooth drying of surface of concrete structure；
Step 4：Digital display integral reisilometer 1 is fixed on control device, and makes the spacing of the two minimum, is then reached
5 bottom of guide sleeve so that supporting rod 10 is placed on concrete component, and on the center of circle of casing 5；
Step 5：Support rod bush 7 is rotated by control handle 8 and angularly plays 8 rebounds；
Step 6：Measuring instrument is entirely proposed from hole, between adjustment digital display integral reisilometer 1 and control device
Away from so that the spacing of the two is maximum, then stretches into again in hole, copies step 5 to continue to play 8 rebounds；
Step 7：By 16 rebound values measured, according to the concrete strength in proper calculation concrete survey area.
The present invention is in implementation process without lower embedding type concrete component earthing is all excavated, it is only necessary to soil body office
Portion's pore-forming, detection is simple, saves substantial amounts of manpower and financial resources.The protection of ecological environment is also beneficial at the same time.The detection of formation
Hole is after one-time detection, ordinary circumstance, it is not necessary to is backfilled, a pipe cap need to be only added on casing, can be repeated several times makes
With convenient periodically progress concrete strength inspection.
Above is the preferred embodiment of the present invention, those of ordinary skill in the art can also carry out various on this basis
Conversion improves, and on the premise of the total design of the present invention is not departed from, these conversion or improvement should all belong to application claims
Within the scope of protection.
Claims (10)
- A kind of 1. lower embedding type concrete component intensity Indirect testing device, it is characterised in that：Including supporting rod (10), spring (11), support rod bush (7), reisilometer (1), fixture (2)；The support rod bush (7) is sleeved on supporting rod (10) outside, and support rod bush (7) is laterally across fixture (2) and reisilometer (1) it is fixedly connected, reisilometer (1) is arranged in parallel with support rod bush (7)；Spring (11), which is arranged, is installed on supporting rod (10) outside Portion, and positioned at the lower section of fixture (2)；Support rod bush (7) can drive reisilometer (1) around rod to rotate, and radius of turn is less than the inspection from ground to concrete component The aperture of gaging hole.
- 2. lower embedding type concrete component intensity Indirect testing device as claimed in claim 1, it is characterised in that：Further include foot Frame (9), the foot stool is fixed on support rod bush (7) outside, and is supported on level ground.
- 3. lower embedding type concrete component intensity Indirect testing device as claimed in claim 1, it is characterised in that：The support Rod bush (7) is exterior to be also fixedly installed handle (8).
- 4. lower embedding type concrete component intensity Indirect testing device as claimed in claim 3, it is characterised in that：Further include and lead To casing (5), the guide sleeve (5) is fixed on support rod bush (7) outside, and reisilometer (1) is on its interior, guide sleeve (5) outside diameter is equal to or slightly less than the open pore size that concrete surface is buried on ground under.
- 5. lower embedding type concrete component intensity Indirect testing device as claimed in claim 4, it is characterised in that：The support Dial (6) is also arranged outside rod bush (7), dial (6) outside diameter is more than guide sleeve (5), and can be covered in ground extremely Under bury concrete surface perforate upper end.
- 6. lower embedding type concrete component intensity Indirect testing device as claimed in claim 4, it is characterised in that：The guiding Casing (5) bottom is equipped with antipriming (12).
- 7. lower embedding type concrete component intensity Indirect testing device as claimed in claim 4, it is characterised in that：The fixture (2) by nut (3) and a pair of of screw rod (4) with supporting rod bush (7) to be connected, rotating nut (3) can adjust reisilometer (1) around The rotating radius of bar.
- 8. a kind of detection method of the lower embedding type concrete component intensity Indirect testing device described in claim 5, its feature It is, comprises the following steps：S1, form circular hole on the ground, until lower embedding type concrete component upper surface；The lower embedding type concrete component intensity Indirect testing device, be inserted into the circular hole by S2；S3, overcome spring (11) elastic force to press down on handle (8), and reisilometer (1) carries out intensity detection；S4, the distance measurement by rotating support rod bush (7) change fixture (2) and/or change fixture (2) and supporting rod (10) Multiple measuring points.
- 9. the detection method of lower embedding type concrete component intensity Indirect testing device as claimed in claim 8, its feature exist In：In step S4, the quantity of the measuring point is at least 16.
- 10. the detection method of lower embedding type concrete component intensity Indirect testing device as claimed in claim 8, its feature exist In：In institute step S4, functional unit of the reisilometer (1) with storage detection data or the work(with transmission detection data Can unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471443.9A CN108007764B (en) | 2017-12-29 | 2017-12-29 | Non-excavation detection device and method for strength of buried concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471443.9A CN108007764B (en) | 2017-12-29 | 2017-12-29 | Non-excavation detection device and method for strength of buried concrete member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108007764A true CN108007764A (en) | 2018-05-08 |
| CN108007764B CN108007764B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711471443.9A Active CN108007764B (en) | 2017-12-29 | 2017-12-29 | Non-excavation detection device and method for strength of buried concrete member |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342236A (en) * | 2018-11-30 | 2019-02-15 | 湖南长建科技有限公司 | A kind of intensity detecting device and its detection method of buried concrete component |
| CN110763584A (en) * | 2019-11-17 | 2020-02-07 | 汪亚平 | Road and bridge concrete structure real-time detection device |
| CN111208026A (en) * | 2020-02-27 | 2020-05-29 | 陈小平 | A resiliometer for foundation pile detects |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176026A (en) * | 1989-12-07 | 1993-01-05 | Proceq S.A. | Apparatus for measuring the surface hardness of building materials |
| CN101650318A (en) * | 2009-09-10 | 2010-02-17 | 三峡大学 | Nondestructive examination device and method of crack defects of inner surface of underground foundation embedded section of electric pole |
| JP2011149858A (en) * | 2010-01-22 | 2011-08-04 | Toyo Asano Foundation Co Ltd | Non-destructive measurement fixture, device for measuring concrete covering thickness using the same, and method for measuring concrete covering thickness in sc pile |
| CN203720175U (en) * | 2014-02-28 | 2014-07-16 | 中国建筑股份有限公司 | Concrete rheometer |
| CN203949599U (en) * | 2014-05-23 | 2014-11-19 | 吴江市明港道桥工程有限公司 | A kind of concrete carbonation depth surveyors' staff |
| CN104833601A (en) * | 2015-04-30 | 2015-08-12 | 河海大学 | Automatic resiliometer used for testing compressive strength of concrete |
| CN105004621A (en) * | 2015-04-23 | 2015-10-28 | 山东大学 | Vehicle-mounted tunnel full-section multi-arm springback detection device and using method thereof |
| CN106494460A (en) * | 2016-10-20 | 2017-03-15 | 山东科技大学 | The high ferro subgrade stability method for early warning in Strong tremor region |
| CN206015649U (en) * | 2016-08-26 | 2017-03-15 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of micro static force penetrometer that can measure rock-soil mechanics characteristic in real time |
| CN106680023A (en) * | 2016-12-23 | 2017-05-17 | 上海岩土工程勘察设计研究院有限公司 | Pollution-isolating soil-sampling method |
| CN107355258A (en) * | 2017-08-30 | 2017-11-17 | 福建省高速公路有限责任公司 | Shallow tunnel advance core restrains system for monitoring displacement and method in advance |
| CN207764033U (en) * | 2017-12-29 | 2018-08-24 | 上海勘察设计研究院(集团)有限公司 | Lower embedding type concrete component intensity Indirect testing device |
-
2017
- 2017-12-29 CN CN201711471443.9A patent/CN108007764B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176026A (en) * | 1989-12-07 | 1993-01-05 | Proceq S.A. | Apparatus for measuring the surface hardness of building materials |
| CN101650318A (en) * | 2009-09-10 | 2010-02-17 | 三峡大学 | Nondestructive examination device and method of crack defects of inner surface of underground foundation embedded section of electric pole |
| JP2011149858A (en) * | 2010-01-22 | 2011-08-04 | Toyo Asano Foundation Co Ltd | Non-destructive measurement fixture, device for measuring concrete covering thickness using the same, and method for measuring concrete covering thickness in sc pile |
| CN203720175U (en) * | 2014-02-28 | 2014-07-16 | 中国建筑股份有限公司 | Concrete rheometer |
| CN203949599U (en) * | 2014-05-23 | 2014-11-19 | 吴江市明港道桥工程有限公司 | A kind of concrete carbonation depth surveyors' staff |
| CN105004621A (en) * | 2015-04-23 | 2015-10-28 | 山东大学 | Vehicle-mounted tunnel full-section multi-arm springback detection device and using method thereof |
| CN104833601A (en) * | 2015-04-30 | 2015-08-12 | 河海大学 | Automatic resiliometer used for testing compressive strength of concrete |
| CN206015649U (en) * | 2016-08-26 | 2017-03-15 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of micro static force penetrometer that can measure rock-soil mechanics characteristic in real time |
| CN106494460A (en) * | 2016-10-20 | 2017-03-15 | 山东科技大学 | The high ferro subgrade stability method for early warning in Strong tremor region |
| CN106680023A (en) * | 2016-12-23 | 2017-05-17 | 上海岩土工程勘察设计研究院有限公司 | Pollution-isolating soil-sampling method |
| CN107355258A (en) * | 2017-08-30 | 2017-11-17 | 福建省高速公路有限责任公司 | Shallow tunnel advance core restrains system for monitoring displacement and method in advance |
| CN207764033U (en) * | 2017-12-29 | 2018-08-24 | 上海勘察设计研究院(集团)有限公司 | Lower embedding type concrete component intensity Indirect testing device |
Non-Patent Citations (2)
| Title |
|---|
| 张双居;: "回弹法检测混凝土强度" * |
| 黄明利;李宁;: "岩土体水平孔内力学参数检测装置及检测理论" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342236A (en) * | 2018-11-30 | 2019-02-15 | 湖南长建科技有限公司 | A kind of intensity detecting device and its detection method of buried concrete component |
| CN110763584A (en) * | 2019-11-17 | 2020-02-07 | 汪亚平 | Road and bridge concrete structure real-time detection device |
| CN111208026A (en) * | 2020-02-27 | 2020-05-29 | 陈小平 | A resiliometer for foundation pile detects |
| CN111208026B (en) * | 2020-02-27 | 2022-12-27 | 陈小平 | A resiliometer for foundation pile detects |
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| Publication number | Publication date |
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| CN108007764B (en) | 2023-12-29 |
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