CN103882891A - Method for utilizing infrared thermal fields to quickly predict side wall leakage of underground continuous wall - Google Patents
Method for utilizing infrared thermal fields to quickly predict side wall leakage of underground continuous wall Download PDFInfo
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- CN103882891A CN103882891A CN201410019859.7A CN201410019859A CN103882891A CN 103882891 A CN103882891 A CN 103882891A CN 201410019859 A CN201410019859 A CN 201410019859A CN 103882891 A CN103882891 A CN 103882891A
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Abstract
The invention relates to a method for utilizing infrared thermal fields to quickly predict side wall leakage of an underground continuous wall. The method refers to utilizing the infrared thermal fields to perform nondestructive testing on quality defect positions, with potential leakage hazards, of the underground continuous wall in the process of excavation of a foundation pit. The method specifically includes the following steps: (1), inspecting the underground continuous wall of the deep foundation pit to find a seam of the underground continuous wall; (2), digging a well at the seam outside the foundation pit, and adding an artificial heat source in the well; (3) implementing on-site testing, namely utilizing a thermal infrared imager to measure targets in a testing scheme, forming images, and recording and storing related infrared thermal field images; (4), judging potential leakage points at the seam of the underground continuous wall, namely analyzing the generated infrared thermal field images, and analyzing and judging abnormal thermal fields so as to judge and position leaking points. The method for nondestructive testing is high in adaptability; by the method, conditions of the foundation pit can be monitored in the daytime, and realtime monitoring can still be realized at night when monitoring cannot be performed through eyes of people.
Description
Technical field
The present invention is applied to underground structrue engineering deep foundation ditch diaphragm wall seam crossing leak detection field.
Background technology
At foundation pit construction, particularly in huge ultradeep foundation pit excavation construction, diaphragm wall is being brought into play important safety guarantee effect.If diaphragm wall seepage, foundation ditch side is just kept away and is easily caved in, and construction in foundation ditch is caused to adverse effect, when serious, can threaten construction even directly to cause great foundation ditch security incident.Therefore monitoring of leakage is the important step of foundation ditch construction of diaphragm wall.Common way is that certain observation boring is set in foundation ditch diaphragm wall both sides, groundwater table is carried out to comparative observation and judged whether that seepage occurs.The common observation effect of this practice is not obvious, and observed result relatively lags behind, thereby falls into a passive position situation, causes security of foundation ditch construction coefficient high not.In the construction of base pit engineering, improve diaphragm wall monitoring of leakage efficiency and precision very important and urgent.
Summary of the invention
For the imperfection of existing diaphragm wall quality detection technology, the invention provides a kind of method of utilizing infrared thermal field fast detecting diaphragm wall sidewall seepage, in Deep Excavation, utilize thermal infrared imager to gather the infra-red heat information of diaphragm wall body and seam crossing, according to infrared induction Heat of Formation field picture, analyze the infra-red heat field picture generating, abnormal thermal field is carried out to Analysis and judgments, and then breakthrough is judged and location.This lossless detection method strong adaptability, not only can monitor foundation ditch situation daytime, and night still can Real-Time Monitoring in the case of people's eyesight is too late.
The technical scheme that the present invention provides is:
A method of utilizing infrared thermal field fast prediction diaphragm wall sidewall seepage, is characterized in that, concrete steps are as follows:
(1) deep foundation ditch diaphragm wall inspection.Inspection is formally to carry out the investigation of carrying out before detection, and main purpose is to find diaphragm wall seam crossing because in ground wall work progress because mud washes away untotally, cause ground wall seam crossing to have percolating water risk.And pay close attention to surface of wall transverse crack, and breakthrough.Further to define detection range and object, make detection have more Objective.
(2) outside foundation ditch, seam crossing is dug a well and is added artificial heat.According to inspection result, detection range is carried out further clearly, outside ground wall seam crossing hole, dig a well and add artificial heat, improve the temperature of water, the constantly potential seepage of the portion region infiltration within the walls to ground along with current, ground temperature within the walls also improves constantly.In foundation ditch the temperature of surface of wall also in rising in various degree.
(3) implement Site Detection.According to detection scheme, utilize thermal infrared imager, the target in detection scheme is measured, form image, and record and keep relevant infra-red heat field picture.
(4) the potential breakthrough judgement of diaphragm wall seam crossing.Analyze the infra-red heat field picture generating, abnormal thermal field is carried out to Analysis and judgments, and then breakthrough is judged and location.
In the present invention, the described seam of step (1) is conventional deep foundation ditch diaphragm wall seam.
In the present invention, the described diaphragm wall of step (2) is conventional diaphragm wall.
In the present invention, described in step (3), utilizing thermal infrared imager is according to the outer thermosetting associated hot field picture of diaphragm wall surface red.
In the present invention, the analysis described in step (4) is by the analysis of infra-red heat field picture, abnormal thermal field and position is analyzed, and then breakthrough is judged and location.
The present invention is in Deep Excavation, use thermal infrared imager to gather the infra-red heat information of diaphragm wall body and seam crossing, the thermal field image generating is analyzed, and then judge whether diaphragm wall exists seepage and potential breakthrough, greatly improve monitoring efficiency, can round-the-clock Real-Time Monitoring.Use infrared thermal field to carry out Real-Time Monitoring to foundation ditch and there is the advantages such as cost is low, efficiency is high, pollution-free.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Fig. 2 is thermal imager operation principle schematic.
Fig. 3 is the diaphragm wall seam potential breakthrough infrared image corresponding with Fig. 4.
Fig. 4 is the potential breakthrough visible images of diaphragm wall seam.
Fig. 5 is the diaphragm wall seam potential breakthrough schematic three dimensional views corresponding with Fig. 4.
The specific embodiment
Below embodiments of the invention are elaborated, the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1: the diaphragm wall breakthrough test of above sea base hole is example, and concrete application is carried out according to the following steps:
Project profile: on-the-spot geological prospecting shows, in target foundation ditch diaphragm wall influence basin, stratum is divided into 3 layers, and foundation depth is 9m, is respectively that 1. layer is artificial earth fill, bed thickness 1.5m; 2. 1 layer of silty clay, bed thickness 1.5m; 2. 3 layers of sandy silt, bed thickness 3.6m; 3. layer Muddy Bottoms silty clay, bed thickness 2.4m; 4. layer is following is the soil layers such as stressed good medium sand.
Step 1, deep pit digging, according to design drawing and job specfication requirement, taking out precipitation to below the base plate of hole after 0.5 m, deep foundation ditch can start to carry out stage excavation, and lift height is 3m.
Step 2, in conjunction with job specfication, carries out apparent mass inspection to deep foundation ditch diaphragm wall, and record is carried out to as voids and pits, cavity, surface infiltration and water burst etc. in the place that may have mass defect.
Step 3, according to inspection result, carries out further clearly detecting target, and detection time, target and method are carried out to refinement, forms formal detection scheme.
Step 4, utilizes thermal infrared imager, and target detection scope is taken, and utilizes body surface infrared radiation thermosetting infrared radiation image.
Step 5, in conjunction with thermodynamics knowledge, by infrared radiation graphical analysis, carries out Analysis and judgments to the position that thermal field is abnormal, and diaphragm wall breakthrough is judged and location.
The present embodiment is by analyzing infrared radiation image, as shown in Fig. 3, Fig. 5, can draw the following conclusions: at diaphragm wall seam quality fault location, diaphragm wall Temperature Distribution distributes obviously different from other position, due to different material slin emissivity difference, body surface temperature is also different, forms diaphragm wall surface temperature and extremely distributes.
See that Fig. 4 visible ray picture is diaphragm wall body seam crossing, once occurred Seepage, leakage is now by the poly-ethyl ester shutoff of one.Near still some seepage vestige wall seam visibly of the infrared thermal imagery image that sees through left side.The regional temperature field of multi-line section delineation is starkly lower than ambient temperature.In this region, average temperature is 18.4 ℃ of left and right, and surface is without obvious washmarking.Illustrate that this body of wall inside, region exists mass defect.
The effect of the present embodiment: on the basis of deep foundation ditch stage excavation, by thermal infrared imager, easily and quickly foundation ditch diaphragm wall seepage is judged and location.
Claims (1)
1. a method of utilizing infrared thermal field fast prediction diaphragm wall sidewall seepage, is characterized in that, concrete steps are as follows:
(1) deep foundation ditch diaphragm wall inspection:
Find diaphragm wall seam crossing, and pay close attention to surface of wall transverse crack and breakthrough;
(2) outside foundation ditch, seam crossing is dug a well and is added artificial heat:
Dig a well and add artificial heat outward in ground wall seam crossing hole, improving the temperature of water, along with current constantly to ground within the walls the potential seepage of portion region permeate, ground temperature within the walls also improves constantly, in foundation ditch the temperature of surface of wall also in rising in various degree;
(3) implement Site Detection:
Utilize thermal infrared imager, the target in detection scheme is measured, form image, and record and keep relevant infra-red heat field picture;
(4) the potential breakthrough judgement of diaphragm wall seam crossing:
Analyze the infra-red heat field picture generating, abnormal thermal field is carried out to Analysis and judgments, and then breakthrough is judged and location.
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| CN201410019859.7A CN103882891B (en) | 2014-01-16 | 2014-01-16 | The method utilizing infrared thermal field fast prediction side wall leakage of underground diaphragm wall |
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| CN201410019859.7A CN103882891B (en) | 2014-01-16 | 2014-01-16 | The method utilizing infrared thermal field fast prediction side wall leakage of underground diaphragm wall |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652496A (en) * | 2014-12-26 | 2015-05-27 | 中铁二局股份有限公司 | Detection method of underground continuous wall water seepage |
| CN108489680A (en) * | 2018-04-26 | 2018-09-04 | 中铁十局集团第二工程有限公司 | Band room cubsoil basement base surface leakage detection method and system |
| CN108760745A (en) * | 2018-04-12 | 2018-11-06 | 上海建工集团股份有限公司 | Diaphram wall seam leakage inspector and method |
| CN109577392A (en) * | 2019-01-21 | 2019-04-05 | 中国科学院武汉岩土力学研究所 | Ground-connecting-wall seam monitoring of leakage prosthetic device and method based on optical fiber temperature-measurement |
| CN109804232A (en) * | 2016-12-30 | 2019-05-24 | 同济大学 | A kind of asphalt pavement crack development degree detection method based on infrared thermal imagery map analysis |
| CN112834401A (en) * | 2020-12-22 | 2021-05-25 | 中建四局土木工程有限公司 | Method for rapidly predicting sidewall leakage of underground continuous wall based on infrared technology |
| CN113203527A (en) * | 2021-05-22 | 2021-08-03 | 崇金玲 | Method for detecting leakage point position of underground concrete continuous wall |
| CN114250988A (en) * | 2022-01-24 | 2022-03-29 | 上海市建筑科学研究院有限公司 | Integrated method for detecting and repairing water leakage of bottom joint of precast concrete shear wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05203596A (en) * | 1991-05-31 | 1993-08-10 | Maeda Corp | Management of concrete structure |
| CN102636313A (en) * | 2012-04-11 | 2012-08-15 | 浙江工业大学 | Leakage source detecting device based on infrared thermal imaging processing |
| CN102680174A (en) * | 2011-11-30 | 2012-09-19 | 河南科技大学 | System and method for detecting leakage based on infrared image processing |
| CN102776904A (en) * | 2012-07-19 | 2012-11-14 | 同济大学 | Method for fast predicting side wall leakage of underground diaphragm wall using infrared thermal fields |
-
2014
- 2014-01-16 CN CN201410019859.7A patent/CN103882891B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05203596A (en) * | 1991-05-31 | 1993-08-10 | Maeda Corp | Management of concrete structure |
| CN102680174A (en) * | 2011-11-30 | 2012-09-19 | 河南科技大学 | System and method for detecting leakage based on infrared image processing |
| CN102636313A (en) * | 2012-04-11 | 2012-08-15 | 浙江工业大学 | Leakage source detecting device based on infrared thermal imaging processing |
| CN102776904A (en) * | 2012-07-19 | 2012-11-14 | 同济大学 | Method for fast predicting side wall leakage of underground diaphragm wall using infrared thermal fields |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652496A (en) * | 2014-12-26 | 2015-05-27 | 中铁二局股份有限公司 | Detection method of underground continuous wall water seepage |
| CN109804232A (en) * | 2016-12-30 | 2019-05-24 | 同济大学 | A kind of asphalt pavement crack development degree detection method based on infrared thermal imagery map analysis |
| CN109804232B (en) * | 2016-12-30 | 2021-06-01 | 同济大学 | Asphalt pavement crack development degree detection method based on infrared thermography analysis |
| CN108760745A (en) * | 2018-04-12 | 2018-11-06 | 上海建工集团股份有限公司 | Diaphram wall seam leakage inspector and method |
| CN108489680A (en) * | 2018-04-26 | 2018-09-04 | 中铁十局集团第二工程有限公司 | Band room cubsoil basement base surface leakage detection method and system |
| CN109577392A (en) * | 2019-01-21 | 2019-04-05 | 中国科学院武汉岩土力学研究所 | Ground-connecting-wall seam monitoring of leakage prosthetic device and method based on optical fiber temperature-measurement |
| CN109577392B (en) * | 2019-01-21 | 2023-09-15 | 中国科学院武汉岩土力学研究所 | Underground continuous wall joint leakage monitoring and repairing device and method based on optical fiber temperature measurement |
| CN112834401A (en) * | 2020-12-22 | 2021-05-25 | 中建四局土木工程有限公司 | Method for rapidly predicting sidewall leakage of underground continuous wall based on infrared technology |
| CN113203527A (en) * | 2021-05-22 | 2021-08-03 | 崇金玲 | Method for detecting leakage point position of underground concrete continuous wall |
| CN113203527B (en) * | 2021-05-22 | 2021-12-24 | 崇金玲 | Method for detecting leakage point position of underground concrete continuous wall |
| CN114250988A (en) * | 2022-01-24 | 2022-03-29 | 上海市建筑科学研究院有限公司 | Integrated method for detecting and repairing water leakage of bottom joint of precast concrete shear wall |
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