CN104155431A - Device for detecting concrete structure internal defects and structural thickness - Google Patents

Device for detecting concrete structure internal defects and structural thickness Download PDF

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Publication number
CN104155431A
CN104155431A CN201310177323.3A CN201310177323A CN104155431A CN 104155431 A CN104155431 A CN 104155431A CN 201310177323 A CN201310177323 A CN 201310177323A CN 104155431 A CN104155431 A CN 104155431A
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China
Prior art keywords
xoncrete
concrete
vestige
impression
effect
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Pending
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CN201310177323.3A
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Chinese (zh)
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张树风
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张树风
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Priority to CN201310177323.3A priority Critical patent/CN104155431A/en
Publication of CN104155431A publication Critical patent/CN104155431A/en
Pending legal-status Critical Current

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Abstract

Provided is a device for detecting concrete structure internal defects and structural thickness. The device can generate traces under a pressure. The device is pre-embedded in a concrete structure to be detected. The device and the concrete structure contact and pressure effect between the device and the concrete structure is generated. When a certain area of the concrete contacting the device has an defect or the contact position is the edge of concrete structure, the device can generate defect or edge abnormal traces and the like. The abnormal traces correspond with the defect edge or the structure interface position. Through observation identification of abnormal traces on the device, internal defect conditions, of the concrete structure, near the device can be detected, or the structural thickness is detected through observation identification of abnormal traces on the interface of the concrete structure.

Description

A kind of device that detects xoncrete structure inherent vice and structural thickness
Technical field the present invention is a kind of device that detects xoncrete structure inherent vice and structural thickness, when use, this device is embedded in concrete, the abnormal vestige that produced by concrete pressure effect by device detects xoncrete structure inherent vice and structural thickness.
Background technology construction project field is widely used xoncrete structure, xoncrete structure may produce due to a variety of causes the defects such as crack, hole, honeycomb, segregation, tomography in casting process and after building in inside configuration, generally after construction, will carry out Inner Defect Testing to xoncrete structure, some xoncrete structure also will carry out structural thickness detection after construction.
At present, carrying out the key instrument equipment that xoncrete structure inherent vice or thickness detects has: ultrasonic instrument, impact echo instrument, ground penetrating radar, rig, wherein, ultrasonoscope, impact echo instrument, ground penetrating radar belong to lossless detection method.Ultrasonoscope is that use is more, has the technical regulation of corresponding ultrasound examination defects of concrete structure, can carry out Inner Defect Testing to the little concrete body of thickness; Its shortcoming be effectively detect the degree of depth compared with little, be subject in structure reinforcing bar disturbing effect large, detect data computing and analyze loaded down with trivial detailsly, be difficult to detection architecture thickness.It is fast that defects of concrete structure speed detects in ground penetrating radar side, but because the resolution to defect target and antenna frequencies are directly proportional, high frequency antenna can detect less defect, but the high signal attenuation of frequency is fast, cannot effectively detect the common deficiency that the degree of depth is larger; In the time that in structure, reinforcing bar is more, examination of explore ground radar ability is greatly affected; When different defects are blocked mutually, Electromagnetic wave is difficult to different defects to be distinguished; Comparison not reliably with reference to time, ground penetrating radar side is difficult to accurately judge depth of defect and structural thickness.
Above instrument is all physical detecting instruments, and common advantage is non-destructive, can carries out complete detection to structure, and testing cost is low; Shortcoming is that instrument not directly perceived, examined, detection site condition and the impact of testing staff's technical capability are large, poor accuracy.
In the time that the size of building structure and member is larger, generally detect the defect of inside concrete with rig core boring sampling.It is that local damage detects that rig bores core detection, can detect xoncrete structure inherent vice and structural thickness, have intuitive and accurate advantage, shortcoming is that efficiency lowly wastes time and energy, cost is high, destructive and locality, may bore brokenly bar construction and be not suitable for using, producing noise pollution etc. in the time that reinforcing bar is intensive in structure.
Summary of the invention the present invention is a kind of device that detects xoncrete structure inherent vice and structural thickness, this device is done the used time and can be produced vestige being stressed, device is embedded in the xoncrete structure that will detect in advance, device comes in contact and produces mutual pressure-acting and produce vestige on device with xoncrete structure, by can detect near xoncrete structure inherent vice situation this device to the vestige that installs upper generation; Xoncrete structure border when the concrete region contacting with device exists defect or contact position, on device, can produce the abnormal vestige such as defect or border, this abnormal vestige and defect border or structural interface position correspondence, observation mark by installing upper abnormal vestige can detect near xoncrete structure inherent vice situation this device, or measures xoncrete structure thickness by the observation mark to the abnormal vestige in xoncrete structure interface.
This device uses the material that can produce under pressure vestige to be made into detection main part, when use, device is embedded in the concrete of building, the detection main part of device contacts with concrete, when detection, the detection main part that can produce under pressure vestige is taken out from xoncrete structure, come in contact impression that effect produces and can detect near xoncrete structure inherent vice situation this device by detecting main part and concrete, or by the identification of xoncrete structure interface impression is measured to xoncrete structure thickness.Can increase if desired interaction force between device and concrete to strengthen impression display effect, improve thus and detect effect.
This device detects xoncrete structure inherent vice and structural thickness belongs to local damage detection method, the most close with rig, more directly perceived, accurate compared with geophysical prospecting equipment detection, detects the degree of depth larger; Compare with drilling rig inspection, same directly perceived, accurately, to detect the degree of depth large, and compared with drilling rig inspection is quick, easy, cost is low, be not subject in structure the environmental pollutions such as the situations such as reinforcing bar affect, noiseless.
This contrive equipment of embodiment can adopt various ways to implement, and wherein a kind of mode is:
This device is mainly made up of several parts:
1, a salable flexible pipe (1), fluid injection body in pipe (general water filling) or gas, its Main Function is that tube wall is propped up under hydraulic pressure or air pressure, and can produce interaction force between concrete; 2, the material (2) that can produce under pressure impression that flexible pipe (1) has, as transfer paper, ink or rubber-plastics material etc.; 3, can record the part (3) of the impression of reservation (2), as paper, plastic sheeting or cloth etc., this part contacts with transfer paper, ink etc. in order to record and retains impression; In the time recording the part use rubber-plastics material that retains impression, itself can record reservation impression this material; 4, the hard rod member (4) of placing in flexible pipe, is mainly to play the effect of avoiding flexible pipe overflexing and convenient operation, also can play and increase installation weight to improve the effect of device installation effect.5, Lining Hose sealed tube (5), can use plastic film tube, Main Function is in the time that flexible pipe (1) is difficult for sealing, to use (5) to realize good leakproof seal effect, in the time that flexible pipe (1) can be realized excellent sealing leak preventing effect, can not use (5); 6, ferrule leakage preventive portion (6), is mainly sealing lid, discharges liquid in pipe or gas to reduce the pressure of managing between concrete so that pipe is taken out from concrete during for sealing orifice or detection; 7, fluid injection or pneumatic element (7), for the liquid such as water filling or gas boosting, can be arranged on ferrule leakage preventive portion (6) above or install other positions; 8, flexible pipe hard base (8), Main Function is increase the stability of device when embedding and make device more attractive in appearance, also can not use.9, outermost layer sleeve pipe (9), generally can use plastic sheeting sleeve pipe, is positioned at device skin, and Main Function is that protection (2), (3) are avoided damaged or soak, and also can make device from xoncrete structure, take out smoothly.10, fluid injection or plenum accessory (10), more conveniently to use watering can, also can use hydraulic giant, air pump etc., in pipe, after the liquid such as water filling or gas-flow closure, use the further liquid such as injected water or inflate increase tube wall pressure of parts (10).
When device Transducers Embedded in Concrete, can produce the material (2) of impression and can record and retain the part (3) of impression and be positioned between flexible pipe (1) and concrete, while using the materials such as transfer paper or ink when producing the part of impression, pressure-acting between tube wall and concrete is applied to and can produces the material (2) of impression and can record in the part (3) that retains impression, when detection, take out and can record the part (3) that retains impression, vestige recognition structure defective locations or structural thickness border on (2) that retain by (3) upper hard-copy log; That while using the materials such as rubber and plastic, self can record reservation impression this part when producing the part of impression.When detection, first the liquid such as water in device or gas are taken out or discharged or part taking-up or release, the part that device is embedded in concrete is relaxed state, withdrawing device, by observing the abnormal impression in the part of recorded reservations impression of identity device, carry out defects of concrete structure or structural thickness detection.

Claims (12)

1. one kind is detected the device of xoncrete structure inherent vice and structural thickness, this device is done the used time and can be produced vestige being stressed, device is embedded in the xoncrete structure that will detect in advance, device comes in contact and produces mutual pressure-acting and produce vestige on device with xoncrete structure, by can detect near xoncrete structure inherent vice situation this device to the vestige that installs upper generation; Xoncrete structure border when the concrete region contacting with device exists defect or contact position, on device, can produce the abnormal vestige such as defect or border, this abnormal vestige and defect border or structural interface position correspondence, observation mark by installing upper abnormal vestige can detect near xoncrete structure inherent vice situation this device, or measures xoncrete structure thickness by the observation mark to the abnormal vestige in xoncrete structure interface.
2. according to the device of claim 1, it is characterized in that: this device uses the material that can produce under pressure vestige to be made into detection main part, when use, device is embedded in the concrete of building, the detection main part of device contacts with concrete, when detection, the detection main part that can produce under pressure vestige is taken out from xoncrete structure, come in contact impression that effect produces and can detect near xoncrete structure inherent vice situation this device by detecting main part and concrete, or by the identification of xoncrete structure interface impression is measured to xoncrete structure thickness.Can increase if desired interaction force between device and concrete to strengthen impression display effect, improve thus and detect effect.
3. according to the device of claim 1, it is characterized in that: this device uses a salable flexible pipe (1), fluid injection body in pipe (general water filling) or gas, its Main Function is that tube wall is propped up under hydraulic pressure or air pressure, and can produce interaction force between concrete.
4. according to the device of claim 1, it is characterized in that: the flexible pipe (1) of this device is with the material (2) that can produce under pressure impression, as transfer paper, ink or rubber-plastics material etc.
5. according to the device of claim 1, it is characterized in that: this device has the part (3) of the impression that can record reservation (2), as paper, plastic sheeting or cloth etc., this part contacts with transfer paper, ink etc. in order to record and retains impression; In the time recording the part use rubber-plastics material that retains impression, itself can record reservation impression this material.
6. according to the device of claim 1, it is characterized in that: in the flexible pipe of this device, place hard rod member (4), be mainly to play the effect of avoiding flexible pipe overflexing and convenient operation, also can play and increase installation weight to improve the effect of device installation effect.
7. according to the device of claim 1, it is characterized in that: this device Lining Hose sealed tube (5), can use plastic film tube, Main Function is in the time that flexible pipe (1) is difficult for sealing, to use (5) to realize good leakproof seal effect, in the time that flexible pipe (1) can be realized excellent sealing leak preventing effect, can not use (5).
8. according to the device of claim 1, it is characterized in that: this device has ferrule leakage preventive portion (6), be mainly sealing lid, during for sealing orifice or detection, discharge liquid in pipe or gas to reduce the pressure of managing between concrete so that pipe is taken out from concrete.
9. according to the device of claim 1, it is characterized in that: this device has fluid injection or pneumatic element (7), for the liquid such as water filling or gas boosting, can be arranged on ferrule leakage preventive portion (6) above or install other positions.
10. according to the device of claim 1, it is characterized in that: this device has hard base (8), Main Function is increase the stability of device when embedding and make device more attractive in appearance, also can not use.
11. according to the device of claim 1; it is characterized in that: this device has outermost layer sleeve pipe (9); generally can use plastic sheeting sleeve pipe; be positioned at device skin; Main Function is that protection (2), (3) are avoided damaged or soak, and also can make device from xoncrete structure, take out smoothly.
12. according to the device of claim 1, it is characterized in that: this device has fluid injection or plenum accessory (10), more conveniently to use watering can, also can use hydraulic giant, air pump etc., in pipe, after the liquid such as water filling or gas-flow closure, use the further liquid such as injected water or inflate increase tube wall pressure of accessory (10).
CN201310177323.3A 2013-05-14 2013-05-14 Device for detecting concrete structure internal defects and structural thickness Pending CN104155431A (en)

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Application Number Priority Date Filing Date Title
CN201310177323.3A CN104155431A (en) 2013-05-14 2013-05-14 Device for detecting concrete structure internal defects and structural thickness

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Application Number Priority Date Filing Date Title
CN201310177323.3A CN104155431A (en) 2013-05-14 2013-05-14 Device for detecting concrete structure internal defects and structural thickness

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CN104155431A true CN104155431A (en) 2014-11-19

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105887634A (en) * 2016-05-23 2016-08-24 桂仲成 Crawler-type intelligent automatic pavement detection device
CN105926419A (en) * 2016-05-23 2016-09-07 桂仲成 Automatic detection robot system and detection method for road surface
CN105937199A (en) * 2016-05-23 2016-09-14 桂仲成 Intelligent hub pavement autonomous detection apparatus
CN105951569A (en) * 2016-05-23 2016-09-21 桂仲成 Caterpillar track type road surface autonomous detection robot system and detection method
CN106049243A (en) * 2016-05-23 2016-10-26 桂仲成 Intelligent road surface autonomous detection device
CN108375334A (en) * 2018-02-13 2018-08-07 南京工程学院 A kind of GPR multi-story steel mesh parameter detection methods based on SAR

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105887634A (en) * 2016-05-23 2016-08-24 桂仲成 Crawler-type intelligent automatic pavement detection device
CN105926419A (en) * 2016-05-23 2016-09-07 桂仲成 Automatic detection robot system and detection method for road surface
CN105937199A (en) * 2016-05-23 2016-09-14 桂仲成 Intelligent hub pavement autonomous detection apparatus
CN105951569A (en) * 2016-05-23 2016-09-21 桂仲成 Caterpillar track type road surface autonomous detection robot system and detection method
CN106049243A (en) * 2016-05-23 2016-10-26 桂仲成 Intelligent road surface autonomous detection device
CN105951569B (en) * 2016-05-23 2019-01-08 桂仲成 Independently detect robot system and detection method in crawler type road face
CN106049243B (en) * 2016-05-23 2019-02-15 桂仲成 Independently detect intelligent apparatus in road face
CN108375334A (en) * 2018-02-13 2018-08-07 南京工程学院 A kind of GPR multi-story steel mesh parameter detection methods based on SAR

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