CN116739999A - In-service pile foundation nondestructive testing method - Google Patents
In-service pile foundation nondestructive testing method Download PDFInfo
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- CN116739999A CN116739999A CN202310600492.7A CN202310600492A CN116739999A CN 116739999 A CN116739999 A CN 116739999A CN 202310600492 A CN202310600492 A CN 202310600492A CN 116739999 A CN116739999 A CN 116739999A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 143
- 238000005516 engineering process Methods 0.000 claims abstract description 102
- 238000012216 screening Methods 0.000 claims abstract description 41
- 238000011156 evaluation Methods 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000012163 sequencing technique Methods 0.000 claims abstract description 6
- 238000012795 verification Methods 0.000 claims description 20
- 238000013210 evaluation model Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000007405 data analysis Methods 0.000 abstract description 3
- 238000012549 training Methods 0.000 description 14
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- 230000008569 process Effects 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000013527 convolutional neural network Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The invention discloses a nondestructive testing method for in-service pile foundations, which belongs to the technical field of in-service pile foundation testing, and comprises the following steps: screening detection technologies outside the field of nondestructive detection of in-service pile foundations, and integrating and establishing a detection mode library; acquiring detection conditions of a pile foundation to be detected, and determining corresponding matching items based on the detection conditions; evaluating the detection technology in the detection mode library according to each matching item to obtain a corresponding single evaluation value; marking the detection technology with the single evaluation value larger than the threshold value X2 as a screening technology, and sequencing the priority of the screening technology; selecting a screening technology of M before sequencing, recommending the screening technology to a corresponding manager, wherein M is a positive integer; determining a target detection technology applied to detection, and detecting a pile foundation to be detected based on the target detection technology to obtain a detection result; based on big data analysis technology, various detection technologies are obtained in real time, comprehensive evaluation is performed from the feasibility angle, a detection system is perfected, and various related detection technologies are known dynamically.
Description
Technical Field
The invention belongs to the technical field of in-service pile foundation detection, and particularly relates to a nondestructive detection method for an in-service pile foundation.
Background
Currently, in structural foundation piles, main types include forms of cast-in-place piles, precast piles, tubular piles and the like, and construction processes are various. In the foundation pile construction and use process, due to the limit of construction technology level and the influence of detection means in pile forming, the foundation pile in the current part of operation is damaged and defective to different degrees due to the influence of natural factors such as river water flushing, river channel transition and the like in the operation process and external impact and the like. For the in-service bridge foundation pile structure, daily inspection is carried out on the in-service foundation pile regularly, hidden diseases of the foundation pile are found in time, the development and change trend of the diseases is mastered, and the in-service bridge foundation pile structure has an important effect on maintenance management and bridge operation safety.
Disclosure of Invention
In order to solve the problems of the scheme, the invention provides an in-service pile foundation nondestructive testing method.
The aim of the invention can be achieved by the following technical scheme:
a nondestructive testing method for in-service pile foundations comprises the following steps:
screening detection technologies outside the field of nondestructive detection of in-service pile foundations, and integrating and establishing a detection mode library;
acquiring detection conditions of a pile foundation to be detected, and determining corresponding matching items based on the detection conditions;
evaluating the detection technology in the detection mode library according to each matching item to obtain a corresponding single evaluation value;
marking the detection technology with the single evaluation value larger than the threshold value X2 as a screening technology, and sequencing the priority of the screening technology;
selecting a screening technology of M before sequencing, recommending the screening technology to a corresponding manager, wherein M is a positive integer; and determining a target detection technology applied to detection, and detecting the pile foundation to be detected based on the target detection technology to obtain a detection result.
Further, the method for screening the detection technology outside the field of nondestructive detection of the in-service pile foundation comprises the following steps:
determining the to-be-selected technology outside the field of nondestructive testing of the in-service pile foundation, performing feasibility evaluation on each to-be-selected technology to obtain a corresponding screening value, and marking the to-be-selected technology with the screening value larger than a threshold value X1 as a verification technology; and verifying the verification technology, and integrating verification passing the verification technology into a detection technology.
Further, the detection condition is the image data of the pile foundation to be detected.
Further, the method for carrying out feasibility assessment on each candidate technology comprises the following steps:
an evaluation model is established, the technology to be selected is evaluated through the evaluation model, the corresponding application value and the target value are obtained, the obtained application value and target value are input into a screening formula for calculation, and the corresponding screening value is obtained.
Further, the screening formula is: sz=b1×yz+b2×mz;
wherein: SZ is a screening value; YZ is an application value; MZ is the target value; b1 and b2 are proportionality coefficients, and the value range is 0< b1 less than or equal to 1, and 0< b2 less than or equal to 1.
Further, the detection technology comprises a detection mode, an application range and detection advantages and disadvantages.
Further, the method for acquiring the single evaluation value comprises the following steps:
and establishing a corresponding single evaluation model based on the CNN network or the DNN network, and evaluating through the established single evaluation model to obtain a single evaluation value corresponding to each matching item.
Further, the prioritization method for performing the screening technique includes:
marking each single evaluation value as DYi, i=1, 2, … …, n and n as positive integers, and marking the weight coefficient corresponding to each single evaluation value as alpha i; according to the formula of priority valueAnd calculating a corresponding priority value QP, and sorting according to the priority value.
Compared with the prior art, the invention has the beneficial effects that:
through based on big data analysis technique, acquire various detection technique in real time to carry out comprehensive evaluation from the feasibility angle, perfect detection system, dynamically know various relevant detection technique, be convenient for promote the rapid development of in-service pile foundation's nondestructive test technique, and for follow-up in-service pile foundation detects, provide comprehensive detection technique, be convenient for according to in-service pile foundation's actual conditions, the intelligent selection suitable detection technique is applied, enriches the variety of detection technique, is not limited to the several detection technique in the current in-service pile foundation detection field.
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In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a functional block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, an in-service pile foundation nondestructive testing method is applied in the field of bridge pile foundation testing, but because of the complexity of the actual situation of the in-service pile foundation, the testing mode of the in-service pile foundation in the field of bridge pile foundation testing is not the most suitable, which is disadvantageous to the testing of the in-service pile foundation and the development of the testing technology, especially with the rapid development of related technologies of various industries, various new testing technologies emerge; therefore, a perfect detection system is constructed by combining detection technologies outside the field of in-service pile foundation detection, so that the long-term development of the in-service pile foundation detection technology is promoted; the specific method comprises the following steps:
setting a corresponding detection target according to the detection requirement of the in-service pile foundation, namely, applying the detection target to the detection of the in-service pile foundation, wherein the detection target which needs to be achieved by the corresponding detection mode is used for screening various detection technologies in the field of the non-in-service pile foundation, and the reference screening condition is that the achievement of the detection target can be realized; based on the existing big data technology, various detection technologies in various fields are obtained in real time and marked as to-be-selected technologies, feasibility evaluation is carried out on each to-be-selected technology, detection feasibility of each to-be-selected technology in the in-service pile foundation detection field is judged, comprehensive evaluation is carried out from two angles of application feasibility and detection target detection feasibility, and application feasibility is evaluated from aspects of detection field, detection mode, detection cost, application equipment and the like, so that corresponding application values are obtained; the detection feasibility of the detection target is that the feasibility of the detection target is realized according to the detection technology, the corresponding target value is obtained, specifically, based on the above mode, the corresponding training set is established in a manual mode, the corresponding evaluation model is established based on the CNN network or the DNN network, and the training is performed through the established training set, because the neural network is the prior art in the field, the specific establishment and training process is not described in detail in the invention; analyzing the technology to be selected through an evaluation model after successful training to obtain application values and target values corresponding to the technology to be selected, respectively marking the obtained application values and target values as YZ and MZ, and calculating a corresponding screening value SZ according to a screening formula SZ=b1×YZ+b2×MZ, wherein b1 and b2 are proportionality coefficients, and the value range is 0< b1 less than or equal to 1,0< b2 less than or equal to 1; marking the technology to be selected with the screening value larger than the threshold value X1 as a verification technology; verifying, simulating, experimenting and the like on each verification technology in a manual mode, judging whether each verification technology can be applied to in-service pile foundation calculation, marking the applicable verification technology as a target technology, setting a detection mode, an application range and detection advantages and disadvantages of the corresponding target technology based on verification data, establishing a detection mode library, integrating the target technology and the corresponding detection mode, application range and detection advantages and disadvantages into a detection technology, and storing the detection technology into the detection mode library; and rejecting the candidate technology which is not verified to pass and is not larger than the threshold value X1.
The verification of the verification technology comprises corresponding technical improvement, namely in the verification process, the verification technology is judged to be applied after corresponding improvement, the verification technology after improvement is regarded as verification passing, the equipment replacement can be carried out by combining actual detection and application conditions, the detection cost and implementation difficulty are reduced, and the verification technology is processed by corresponding staff according to the actual conditions.
Through based on big data analysis technique, acquire various detection technique in real time to carry out comprehensive evaluation from the feasibility angle, perfect detection system, dynamically know various relevant detection technique, be convenient for promote the rapid development of in-service pile foundation's nondestructive test technique, and for follow-up in-service pile foundation detects, provide comprehensive detection technique, be convenient for according to in-service pile foundation's actual conditions, the intelligent selection suitable detection technique is applied, enriches the variety of detection technique, is not limited to the several detection technique in the current in-service pile foundation detection field.
Before in-service pile foundation detection, detection conditions of each pile foundation to be detected are collected, such as detection conditions combined with various image data, common pile foundation problems are that pile breaking: mainly caused by the action of external force (such as impact, etc.); reducing: due to flushing and efflorescence of fluids (such as seawater, groundwater, etc.); other diseases: the internal void caused by the corrosion of the foundation pile steel bar, the local flaking caused by the corrosion of the acid medium, and the like; based on various possible pile foundation problems, setting corresponding detection condition acquisition templates, and acquiring detection conditions of each pile foundation to be detected according to the detection condition acquisition templates; generally, only the graph data of the periphery of the pile foundation is required to be collected, if so, the pile foundation is positioned under water, and if the detection part needs to climb up or not; through corresponding image acquisition, the detection condition of the pile foundation to be detected can be generally analyzed.
Analyzing the obtained detection conditions to obtain a plurality of matching items, wherein the matching items are the condition items which need to be met in the detection process according to the analysis of the detection conditions, if the pile foundation is under water, the matching items are underwater detection, and when the detection technology is matched subsequently, the matching items need to be met by the detection technology; specifically, a corresponding detection condition analysis model is established based on a CNN network or a DNN network, a corresponding training set is established in a manual mode for training, and the training set comprises detection conditions, corresponding set matching items and weight coefficients corresponding to the matching items; analyzing the detection conditions through a detection condition analysis model after the training is successful to obtain matching items and corresponding weight coefficients corresponding to the pile foundations to be detected; establishing a corresponding training set by combining the existing similarity algorithm, establishing a corresponding single evaluation model based on a CNN network or a DNN network, training by establishing the training set, and evaluating the application range and the detection advantages and disadvantages of each matching item corresponding to the detection condition and each detection technology in the detection mode library one by the single evaluation model after the training is successful to obtain a single evaluation value corresponding to each matching item; performing similarity calculation by using the application range and the detection advantages and disadvantages corresponding to the matching item and the detection technology, calculating the similarity of the corresponding part, further performing corresponding conversion to obtain a single evaluation value, and if the calculation cannot be performed from the similarity angle, establishing a training set from the coincidence angle in a manual mode;
the detection technology with the single evaluation value being larger than the threshold value X2 is regarded as a screening technology, namely the detection technology with the single evaluation value not larger than the threshold value X2 is eliminated, the subsequent selection is not participated, and finally the adopted detection technology is selected from the screening technology; marking each item evaluation value corresponding to the screening technology as DYi, wherein i=1, 2, … … and n, n is a positive integer, and i represents a corresponding matching item; marking the weight coefficient corresponding to each single evaluation value as alpha i; according to the formula of priority valueCalculating corresponding priority values, sorting according to the priority values, selecting a screening technology of M before sorting, and recommending the screening technology to a detector, wherein M is a positive integer; and selecting a target detection technology corresponding to the detection application by a detector, and detecting the pile foundation to be detected by using the target detection technology to obtain a corresponding detection result.
For a certain pile foundation to be detected, the detection conditions of the pile foundation to be detected are collected through an unmanned aerial vehicle, the detection conditions collected by the unmanned aerial vehicle are received, analysis is carried out on the detection conditions to obtain corresponding matching items, matching of detection technologies is carried out from a detection mode library according to a corresponding set of the matching items, detection technologies meeting detection requirements are output, after priority calculation is carried out, M detection technologies are recommended, the detection technologies adopted by corresponding management personnel are selected from the detection technologies, and detection of the pile foundation to be detected is carried out according to the selected detection technologies.
The above formulas are all formulas with dimensions removed and numerical values calculated, the formulas are formulas which are obtained by acquiring a large amount of data and performing software simulation to obtain the closest actual situation, and preset parameters and preset thresholds in the formulas are set by a person skilled in the art according to the actual situation or are obtained by simulating a large amount of data.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (8)
1. The nondestructive testing method for the in-service pile foundation is characterized by comprising the following steps of:
screening detection technologies outside the field of nondestructive detection of in-service pile foundations, and integrating and establishing a detection mode library;
acquiring detection conditions of a pile foundation to be detected, and determining corresponding matching items based on the detection conditions;
evaluating the detection technology in the detection mode library according to each matching item to obtain a corresponding single evaluation value;
marking the detection technology with the single evaluation value larger than the threshold value X2 as a screening technology, and sequencing the priority of the screening technology;
selecting a screening technology of M before sequencing, recommending the screening technology to a corresponding manager, wherein M is a positive integer; and determining a target detection technology applied to detection, and detecting the pile foundation to be detected based on the target detection technology to obtain a detection result.
2. The in-service pile foundation nondestructive testing method according to claim 1, wherein the method for screening the testing technology outside the field of in-service pile foundation nondestructive testing comprises the following steps:
determining the to-be-selected technology outside the field of nondestructive testing of the in-service pile foundation, performing feasibility evaluation on each to-be-selected technology to obtain a corresponding screening value, and marking the to-be-selected technology with the screening value larger than a threshold value X1 as a verification technology; and verifying the verification technology, and integrating verification passing the verification technology into a detection technology.
3. The in-service pile foundation nondestructive testing method according to claim 1, wherein the testing condition is image data of the pile foundation to be tested.
4. The in-service pile foundation nondestructive testing method of claim 1, wherein the method for performing feasibility assessment on each candidate technology comprises the following steps:
an evaluation model is established, the technology to be selected is evaluated through the evaluation model, the corresponding application value and the target value are obtained, the obtained application value and target value are input into a screening formula for calculation, and the corresponding screening value is obtained.
5. The in-service pile foundation nondestructive testing method of claim 4, wherein the screening formula is: sz=b1×yz+b2×mz;
wherein: SZ is a screening value; YZ is an application value; MZ is the target value; b1 and b2 are proportionality coefficients, and the value range is 0< b1 less than or equal to 1, and 0< b2 less than or equal to 1.
6. The in-service pile foundation nondestructive testing method according to claim 1, wherein the testing technology comprises a testing mode, an application range and testing advantages and disadvantages.
7. The in-service pile foundation nondestructive testing method of claim 1, wherein the method for obtaining the single evaluation value comprises the following steps:
and establishing a corresponding single evaluation model based on the CNN network or the DNN network, and evaluating through the established single evaluation model to obtain a single evaluation value corresponding to each matching item.
8. The in-service pile foundation nondestructive testing method of claim 1, wherein the prioritizing method for the screening technique comprises:
marking each single evaluation value as DYi, i=1, 2, … …, n and n as positive integers, and marking the weight coefficient corresponding to each single evaluation value as alpha i; according to the formula of priority valueAnd calculating a corresponding priority value QP, and sorting according to the priority value.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117371988A (en) * | 2023-10-30 | 2024-01-09 | 南通恒翔机电设备有限公司 | Electromechanical device detection and maintenance system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117371988A (en) * | 2023-10-30 | 2024-01-09 | 南通恒翔机电设备有限公司 | Electromechanical device detection and maintenance system |
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