CN109238767B - Coastal area iron tower foundation structure reinforcing bars corrode Nondestructive method - Google Patents
Coastal area iron tower foundation structure reinforcing bars corrode Nondestructive method Download PDFInfo
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Abstract
Coastal area iron tower foundation structure reinforcing bars corrosion Nondestructive method is disclosed, the maintenance of coastal area steel tower and maintenance technology field are belonged to.Comprising: soil layer at least five test point around selection standard sample；Measure Cl at least five test point‑Mass percentage, humidity and air volumn concentration；Practical diagnosis is carried out at least five test point, obtains standard curve；Mathematical Fitting obtains corrosion percentage and Cl‑Mass percentage, humidity, air volumn concentration between first function relational expression, second function relational expression and third functional relation；Merge fitting, obtaining independent variable includes Cl‑Mass percentage, humidity, air volumn concentration, dependent variable be corrode percentage the 4th functional relation；Measure Cl at test point to be measured‑Mass percentage, humidity and air volumn concentration；It is substituting to the 4th functional relation, obtains the corrosion percentage at test point to be measured.Diagnosis process is simple, as a result accurately.
Description
Technical field
The present invention relates to coastal area iron tower foundation structural inspections and maintenance technology field, more particularly to a kind of littoral
Area's iron tower foundation structure reinforcing bars corrode Nondestructive method.
Background technique
For coastal area rock-soil layer due to the infiltration of sea salt, chloride ion content is higher.Chloride ion is that extremely strong anode work (is gone blunt
Change) agent.It in the chemical reaction of steel bar corrosion, although chloride ion does not constitute corrosion product, does not also consume, makees in corrosion
For the intermediate product for promoting corrosion, catalytic action can be corroded.Therefore, coastal area iron tower foundation Structural defect mainly from
It is expanded compared with the reinforcement corrosion under high Cl- concentration and its volume of concrete further resulted in, peeling behavior of cracking.Currently, electric
Chemical method is the non-damage detection method for being suitable for detecting Reinforcing Steel Bar In Reinforced Concrete Structure corrosion situation, wherein half-cell electricity
The methods of position method, concrete resistivity detection method, the linear polarisation resistance method of direct current and AC impedence method are in other industry work
Journey should have, but this method is only applicable to the reinforced concrete structure on ground or more.For electric power pylon basis, this is special
Construction of underground structure object and its locating coastal area high Cl- concentration environment, invention are easy to engineers and technicians' operation
Reinforcement corrosion diagnostic techniques and device, it is extremely urgent.
Summary of the invention
In view of this, the present invention provides a kind of coastal area iron tower foundation structure reinforcing bars to corrode Nondestructive method, answer
Coastal area iron tower foundation structure reinforcing bars can be corroded with it and carry out Nondestructive, the mistake diagnosed by the diagnostic method
Journey is simple, as a result accurately, thus more suitable for practical.
In order to achieve the above object, iron tower foundation structure reinforcing bars in coastal area provided by the invention corrode Nondestructive method
Technical solution it is as follows:
Iron tower foundation structure reinforcing bars in coastal area provided by the invention corrosion Nondestructive method the following steps are included:
At least five test point of soil layer around the iron tower foundation structure reinforcing bars sample of selection standard coastal area；
Measure around the standard coastal area iron tower foundation structure reinforcing bars sample Cl at least five test point of soil layer-
Mass percentage, humidity and air volumn concentration；
It is carried out in fact at least five test point of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
Border diagnosis, and obtain at least five test point phase with soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
The diagnosis of corresponding corrosion percentage；
It draws using the corrosion percentage as ordinate, abscissa is respectively Cl-Mass percentage, humidity and air
Volumn concentration 3 standard curves；
Mathematical Fitting is carried out respectively for 3 standard curves, respectively obtains the corrosion percentage and Cl-Quality
First function relational expression, the corrosion percentage between percentage composition and second function relational expression and the rust between humidity
Lose the third functional relation between percentage and the volumn concentration of air；
By the corrosion percentage and Cl-Mass percentage between first function relational expression, the corrosion percentage
The third letter between second function relational expression and the corrosion percentage and the volumn concentration of air between several and humidity
Number relational expression merges fitting, and obtaining independent variable includes Cl-Mass percentage, humidity, air volumn concentration,
Dependent variable is the 4th functional relation for corroding percentage；
The test point to be measured of soil layer around iron tower foundation structure reinforcing bars in coastal area to be measured is chosen, the detection to be measured is measured
Cl at point-Mass percentage, humidity and air volumn concentration；
By Cl at the obtained test point to be measured-Mass percentage, humidity and air volumn concentration generation
Enter the corrosion percentage being obtained by calculation at the test point to be measured to the 4th functional relation.
Following technology also can be used in coastal area iron tower foundation structure reinforcing bars corrosion Nondestructive method provided by the invention
Measure further realizes.
Preferably, at least five test point is selected from the same standard coastal area iron tower foundation structure reinforcing bars sample
Surrounding soil layer.
Preferably, at least five test point is selected from different standard coastal area iron tower foundation structure reinforcing bars samples
Surrounding soil layer.
Preferably, the standard coastal area iron tower foundation structure reinforcing bars sample is arranged 1 month at least in soil.
Preferably, at least five inspection of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
The practical method diagnosed of measuring point is to take out described in the standard coastal area iron tower foundation structure reinforcing bars sample or excavation
Soil layer around the iron tower foundation structure reinforcing bars sample of standard coastal area makes the standard coastal area iron tower foundation structure reinforcing bars sample
This exposure.
Preferably, the depth of at least five test point is different.
Preferably, measuring at least five inspection of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
Cl at measuring point-Mass percentage, humidity and air volumn concentration method the following steps are included:
Soil layer excavates hole around the standard coastal area iron tower foundation structure reinforcing bars sample, until described hole
Depth and the depth of at least five test point are adapted；
It will be used to measure Cl respectively-Mass percentage the first detecting instrument probe, second for measuring humidity
Detecting instrument probe, volumn concentration for measuring air third detecting instrument probe placement in described hole；
The soil dug out when backfill excavation described hole makes described for measuring Cl-Mass percentage first detection
The third detection of instrument probe, the second detecting instrument probe for measuring humidity, the volumn concentration for measuring air
Instrument probe is stablized；
After undergoing a delay period, read respectively described for measuring Cl-Mass percentage the first detector
Device, the second detecting instrument for measuring humidity, the volumn concentration for measuring air third detecting instrument reading
Obtain around the standard coastal area iron tower foundation structure reinforcing bars sample Cl at least five test point of soil layer-Quality
The volumn concentration value of percentage composition, humidity and air.
Preferably, described for measuring Cl-Mass percentage the first detecting instrument, for measuring humidity
Two detecting instruments, volumn concentration for measuring air third detecting instrument on be respectively equipped with drawstring.
Preferably, the setting position of the standard coastal area iron tower foundation structure reinforcing bars sample with it is described to be measured coastal
The distance between setting position of regional iron tower foundation structure reinforcing bars is no more than 100m.
Preferably, the coastal area iron tower foundation structure reinforcing bars corrosion Nondestructive method is further comprising the steps of,
For the test point to be measured, it is spaced setting time and repeatedly measures the Cl-Mass percentage, humidity and sky
The volumn concentration of gas；
The obtained Cl will repeatedly be measured-Mass percentage, humidity and air volumn concentration generation respectively
Enter the corrosion percentage being obtained by calculation at the test point to be measured to the 4th functional relation；
Drawing ordinate is the corrosion percentage at the test point to be measured, and abscissa is the curve of time to get to institute
State the relation curve that the corrosion percentage at test point to be measured changes over time.
The present invention detects the rust at test point to be measured after drawing standard curve in the standard curve by way of described point
Percentage is lost, as long as Specification Curve of Increasing is completed, the Cl at test point to be measured can be obtained respectively using detecting instrument-Quality
The volumn concentration of percentage composition, humidity and air obtains the corrosion percentage at test point to be measured, it can be readily appreciated that measuring
Journey is simple, and measurement result is accurate.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the step of iron tower foundation structure reinforcing bars in coastal area provided in an embodiment of the present invention corrode Nondestructive method
Flow chart.
Specific embodiment
The present invention in order to solve the problems existing in the prior art, provides a kind of coastal area iron tower foundation structure reinforcing bars corrosion nothing
Diagnostic method is damaged, coastal area iron tower foundation structure reinforcing bars can be corroded using it and carry out Nondestructive, pass through the diagnosis side
The process that method is diagnosed is simple, as a result accurately, thus more suitable for practical.
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment corrode Nondestructive method to iron tower foundation structure reinforcing bars in coastal area proposed according to the present invention,
Its specific embodiment, structure, feature and its effect, detailed description is as follows.In the following description, different " embodiment " or
What " embodiment " referred to is not necessarily the same embodiment.In addition, the feature, structure or feature in one or more embodiments can be by appointing
What suitable form combination.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, it is specific to understand for example, A and/or B are as follows: it can simultaneously include A and B, can be with individualism A, it can also be with individualism
B can have above-mentioned three kinds of any case.
Referring to attached drawing 1, iron tower foundation structure reinforcing bars in coastal area provided in an embodiment of the present invention corrode Nondestructive method
The following steps are included:
Step S1: at least five test point of soil layer around the iron tower foundation structure reinforcing bars sample of selection standard coastal area；
Step S2: around measurement standard coastal area iron tower foundation structure reinforcing bars sample at least five test point of soil layer
Cl-Mass percentage, humidity and air volumn concentration；
Step S3: click-through is detected at least five of soil layer around the iron tower foundation structure reinforcing bars sample of standard coastal area
The practical diagnosis of row, and obtain at least five test point phase with soil layer around the iron tower foundation structure reinforcing bars sample of standard coastal area
The diagnosis of corresponding corrosion percentage；
Step S4: it draws to corrode percentage as ordinate, abscissa is respectively Cl-Mass percentage, humidity and
3 standard curves of the volumn concentration of air；
Step S5: carrying out Mathematical Fitting for 3 standard curves respectively, respectively obtains corrosion percentage and Cl-Quality
First function relational expression, corrosion percentage between percentage composition and the second function relational expression between humidity and corrosion percentage
Third functional relation between the volumn concentration of air；
Step S6: by corrosion percentage and Cl-Mass percentage between first function relational expression, corrosion percentage
The third functional relation between second function relational expression and corrosion percentage and the volumn concentration of air between humidity
Formula merges fitting, and obtaining independent variable includes Cl-Mass percentage, humidity, air volumn concentration, dependent variable
For the 4th functional relation for corroding percentage；
Step S7: choosing the test point to be measured of soil layer around iron tower foundation structure reinforcing bars in coastal area to be measured, measures to be measured
Cl at test point-Mass percentage, humidity and air volumn concentration；
Step S8: by Cl at obtained test point to be measured-Mass percentage, humidity and air volumn concentration
It is substituting to the 4th functional relation, the corrosion percentage at test point to be measured is obtained by calculation.
The embodiment of the present invention detects test point to be measured after drawing standard curve in the standard curve by way of described point
The corrosion percentage at place can obtain respectively the Cl at test point to be measured using detecting instrument as long as Specification Curve of Increasing is completed-
Mass percentage, humidity and air volumn concentration obtain the corrosion percentage at test point to be measured, it can be readily appreciated that
Measurement process is simple, and measurement result is accurate.
Wherein, at least five test point is selected from soil layer around the same standard coastal area iron tower foundation structure reinforcing bars sample.
In such a case, it is possible to be demarcated for the same standard coastal area iron tower foundation structure reinforcing bars sample, the standard of calibration
Exactness is higher.
Wherein, at least five test point is selected from soil layer around different standard coastal area iron tower foundation structure reinforcing bars samples.
In this case, it can be demarcated for different standard coastal area iron tower foundation structure reinforcing bars samples, process is this
The calibrated scope of application of scaling method is wider, in the present embodiment, different standard coastal area iron tower foundation structure reinforcing bars samples
The distance between this is no more than 100m, in this case, can be avoided due to soil property, environmental change and bring error.
Wherein, standard coastal area iron tower foundation structure reinforcing bars sample is arranged 1 month at least in soil.In such case
Under, enable to standard coastal area iron tower foundation structure reinforcing bars sample to possess the enough corrosion time, to reach corresponding
Corrode percentage so that the corrosion percentage of calibration to be related to data area wider.
Wherein, it is carried out at least five test point of soil layer around the iron tower foundation structure reinforcing bars sample of standard coastal area
The method actually diagnosed is taking-up standard coastal area iron tower foundation structure reinforcing bars sample or excavation standard coastal area steel tower
Soil layer around foundation structure reinforcing bar sample makes the iron tower foundation structure reinforcing bars sample exposure of standard coastal area.Wherein, standard is taken out
The mode of coastal area iron tower foundation structure reinforcing bars sample is suitable for the weight of standard coastal area iron tower foundation structure reinforcing bars sample
The case where amount and small volume, and soil layer around the iron tower foundation structure reinforcing bars sample of standard coastal area is excavated, keep standard coastal
The mode of regional iron tower foundation structure reinforcing bars sample exposure is suitable for the weight of standard coastal area iron tower foundation structure reinforcing bars sample
Amount and volume larger situation in practice, can be selected according to the actual situation.
Wherein, the depth of at least five test point is different.In this case, the depth bounds of test point are enabled to more
Extensively.
Wherein, measure standard coastal area iron tower foundation structure reinforcing bars sample around soil layer at least five test point at Cl-
Mass percentage, humidity and air volumn concentration method the following steps are included:
Step S201: soil layer excavates hole around the iron tower foundation structure reinforcing bars sample of standard coastal area, until hole
Depth and at least five test point depth be adapted；
Step S202: it will be used to measure Cl respectively-Mass percentage the first detecting instrument probe, it is wet for measuring
The second detecting instrument probe of degree, volumn concentration for measuring air third detecting instrument probe placement in hole
It is interior；
Step S203: backfill is excavated the soil dug out when hole and is made for measuring Cl-Mass percentage first inspection
Survey the third inspection of instrument probe, the second detecting instrument probe for measuring humidity, the volumn concentration for measuring air
Instrument probe is surveyed to stablize；
Step S204: it after one delay period of experience, is read respectively for measuring Cl-Mass percentage first inspection
Survey the third detecting instrument of instrument, the second detecting instrument for measuring humidity, the volumn concentration for measuring air
Reading obtains around the iron tower foundation structure reinforcing bars sample of standard coastal area Cl at least five test point of soil layer-Quality
The volumn concentration value of percentage composition, humidity and air.
In this case, Cl at least five test point obtained can be made-Mass percentage, humidity and air
Volumn concentration result it is more accurate and stablize.
Wherein, for measuring Cl-Mass percentage the first detecting instrument, the second detector for measuring humidity
Device, volumn concentration for measuring air third detecting instrument on be respectively equipped with drawstring.In this case, Neng Goubian
In will be used to measure Cl-The first detecting instrument of mass percentage, the second detecting instrument for measuring humidity, for surveying
The third detecting instrument for determining the volumn concentration of air takes out from soil layer, as long as can be distinguished by pulling drawstring
It takes out.
Wherein, the setting position of standard coastal area iron tower foundation structure reinforcing bars sample and coastal area iron tower foundation to be measured
The distance between setting position of structure reinforcing bars is no more than 100m.In this case, it can be avoided due to soil property, environmental change
And bring error.
Wherein, coastal area iron tower foundation structure reinforcing bars corrosion Nondestructive method is further comprising the steps of,
Step S9: being directed to test point to be measured, and interval setting time repeatedly measures Cl-Mass percentage, humidity and sky
The volumn concentration of gas；
Step S10: obtained Cl will repeatedly be measured-Mass percentage, humidity and air volumn concentration point
It is not substituting to the 4th functional relation, the corrosion percentage at test point to be measured is obtained by calculation；
Step S11: draw ordinate be test point to be measured at corrosion percentage, abscissa be the time curve to get
The relation curve that corrosion percentage at test point to be measured changes over time.
In this case, it can be predicted by the relation curve that the corrosion percentage at test point to be measured changes over time
The variation tendency of the corrosion percentage of coastal area iron tower foundation structure reinforcing bars, once the inflection point fluctuation that the curve occurs is larger,
Then prompt is safeguarded or is replaced to the coastal area iron tower foundation structure reinforcing bars, can be avoided the generation of related accidents.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of coastal area iron tower foundation structure reinforcing bars corrode Nondestructive method, which comprises the following steps:
At least five test point of soil layer around the iron tower foundation structure reinforcing bars sample of selection standard coastal area；
Measure around the standard coastal area iron tower foundation structure reinforcing bars sample Cl at least five test point of soil layer-Quality
The volumn concentration of percentage composition, humidity and air；
It practical is examined at least five test point of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
It is disconnected, and obtain corresponding at least five test point of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
Corrosion percentage diagnosis；
It draws using the corrosion percentage as ordinate, abscissa is respectively Cl-Mass percentage, humidity and air body
3 standard curves of product percentage composition；
Mathematical Fitting is carried out respectively for 3 standard curves, respectively obtains the corrosion percentage and Cl-Quality percentage
First function relational expression, the corrosion percentage between content and second function relational expression and the corrosion hundred between humidity
Third functional relation between score and the volumn concentration of air；
By the corrosion percentage and Cl-Mass percentage between first function relational expression, the corrosion percentage with it is wet
The third functional relation between second function relational expression and the corrosion percentage and the volumn concentration of air between degree
Formula merges fitting, and obtaining independent variable includes Cl-Mass percentage, humidity, air volumn concentration, dependent variable
For the 4th functional relation for corroding percentage；
The test point to be measured of soil layer around iron tower foundation structure reinforcing bars in coastal area to be measured is chosen, is measured at the test point to be measured
Cl-Mass percentage, humidity and air volumn concentration；
By Cl at the obtained test point to be measured-Mass percentage, humidity and air volumn concentration be substituting to institute
The 4th functional relation is stated, the corrosion percentage at the test point to be measured is obtained by calculation.
2. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
At least five test point is selected from soil layer around the same standard coastal area iron tower foundation structure reinforcing bars sample.
3. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
At least five test point is selected from soil layer around different standard coastal area iron tower foundation structure reinforcing bars samples.
4. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
The standard coastal area iron tower foundation structure reinforcing bars sample is arranged 1 month at least in soil.
5. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
It practical is diagnosed at least five test point of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample
Method is to take out the standard coastal area iron tower foundation structure reinforcing bars sample or the excavation standard coastal area steel tower base
Soil layer around plinth structure reinforcing bars sample makes the standard coastal area iron tower foundation structure reinforcing bars sample exposure.
6. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
The depth of at least five test point is different.
7. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
Measure around the standard coastal area iron tower foundation structure reinforcing bars sample Cl at least five test point of soil layer-Quality hundred
The method of the volumn concentration of point content, humidity and air the following steps are included:
Soil layer excavates hole around the standard coastal area iron tower foundation structure reinforcing bars sample, until the depth of described hole
It is adapted with the depth of at least five test point；
It will be used to measure Cl respectively-Mass percentage the first detecting instrument probe, the second detector for measuring humidity
Device probe, volumn concentration for measuring air third detecting instrument probe placement in described hole；
The soil dug out when backfill excavation described hole makes described for measuring Cl-Mass percentage the first detecting instrument
It pops one's head in, the third detecting instrument of the second detecting instrument probe for measuring humidity, the volumn concentration for measuring air
Probe stationary；
After undergoing a delay period, read respectively described for measuring Cl-Mass percentage the first detecting instrument, use
It is obtained in the second detecting instrument of measurement humidity, the reading of the third detecting instrument of volumn concentration for measuring air
Cl at least five test point of soil layer around the standard coastal area iron tower foundation structure reinforcing bars sample-Quality percentage contain
Amount, the volumn concentration value of humidity and air.
8. iron tower foundation structure reinforcing bars in coastal area according to claim 7 corrode Nondestructive method, which is characterized in that
It is described to be used to measure Cl-The first detecting instrument of mass percentage, the second detecting instrument for measuring humidity, for surveying
Determine to be respectively equipped with drawstring on the third detecting instrument of the volumn concentration of air.
9. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, which is characterized in that
The setting position of the standard coastal area iron tower foundation structure reinforcing bars sample and the iron tower foundation structure in coastal area to be measured
The distance between setting position of reinforcing bar is no more than 100m.
10. iron tower foundation structure reinforcing bars in coastal area according to claim 1 corrode Nondestructive method, feature exists
In, the coastal area iron tower foundation structure reinforcing bars corrosion Nondestructive method is further comprising the steps of,
For the test point to be measured, it is spaced setting time and repeatedly measures the Cl-Mass percentage, humidity and air
Volumn concentration；
The obtained Cl will repeatedly be measured-Mass percentage, humidity and air volumn concentration be substituting to institute respectively
The 4th functional relation is stated, the corrosion percentage at the test point to be measured is obtained by calculation；
Drawing ordinate is the corrosion percentage at the test point to be measured, abscissa be the curve of time to get to it is described to
The relation curve that the corrosion percentage surveyed at test point changes over time.
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