CN108894259A - A kind of method of ultrasound examination subway construction of diaphragm wall quality - Google Patents
A kind of method of ultrasound examination subway construction of diaphragm wall quality Download PDFInfo
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- CN108894259A CN108894259A CN201810793591.0A CN201810793591A CN108894259A CN 108894259 A CN108894259 A CN 108894259A CN 201810793591 A CN201810793591 A CN 201810793591A CN 108894259 A CN108894259 A CN 108894259A
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- sound detecting
- detecting pipe
- wall
- pipe
- reinforcement cage
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to subway diaphram wall integrity detection field, specially a kind of method of ultrasound examination subway construction of diaphragm wall quality includes the following steps：（1）Coercion underground continuous wall steel reinforcement cage；（2）Arrange sound detecting pipe：Front two rows sound detecting pipe is arranged on steel reinforcement cage, the quantity of every row's sound detecting pipe is 3, and every row's sound detecting pipe is all equally spaced from setting, every width ground-connecting-wall 6 sound detecting pipes of total arrangement；（3）It transfers steel reinforcement cage and carries out in diaphram wall concreting；（4）Sound detecting pipe dredging, water filling and sealing：（5）It is put into energy converter in each sound detecting pipe, makes measuring point of each branch energy converter in each sound detecting pipe in same level；（6）Detection and data processing.For construction test detection, using this engineering method, it ensure that the reasonability and feasibility of testing inspection, improve the speed of testing inspection, provide guarantee for the quality of construction.
Description
Technical field
The invention belongs to subway diaphram wall integrity detection field, a kind of specially ultrasound examination subway underground connects
The method of continuous wall construction quality.
Background technique
Diaphram wall is the periphery axis that foundation engineering uses chute forming machine along deep excavation project on the ground, in mud
Under the conditions of retaining wall, a long and narrow deep trouth is excavated out, after clear slot, steel reinforcement cage is hung in slot, it is then underwater with tremie method placing
Concrete builds up a unit groove section, so carries out paragraph by paragraph, builds up continuous armored concrete wall together in underground.Underground connects
The effect of continuous wall has：1. earth-retaining acts on；2. the support as weight；3. the effect of intercepting water；4. antiseepage acts on.Therefore, wall coagulation
The quality of soil is most important, if the defects of isolation, interlayer, folder mud, fracture occurs in wall concrete after construction, will lead to coagulation
The integrality of soil is bad, phenomena such as percolating water or Lack of support occurs, seriously affects construction quality.Therefore, strict control is answered
The construction quality of ground-connecting-wall, after ground-connecting-wall is constructed, the general integrality using supercritical ultrasonics technology detection wall concrete, but phase
Pass technology is immature, should need to improve detection technique.
Summary of the invention
The present invention provides ultrasound examination subway underground continuous wall construction methods, are prevented using the construction of this engineering method because pre-buried
The improper generation for leading to not detection or the inaccurate phenomenon of detection data of sound detecting pipe, has saved the increased construction cost because of detection
With.
A kind of method of ultrasound examination subway construction of diaphragm wall quality, includes the following steps：
（1）Coercion underground continuous wall steel reinforcement cage；
（2）Arrange sound detecting pipe：Front two rows sound detecting pipe is arranged on steel reinforcement cage, the quantity of every row's sound detecting pipe is 3, every row's sounding
Pipe is all equally spaced from setting, and front two rows sound detecting pipe or so is staggered or front two rows sound detecting pipe is arranged in rows, connects to every width
Wall 6 sound detecting pipes of total arrangement；
（3）It transfers steel reinforcement cage and carries out in diaphram wall concreting；
（4）Sound detecting pipe dredging, water filling and sealing：Sound detecting pipe is dredged using reinforcing bar, go on smoothly detection can more；After dredging
Plastic closures are filled the water and utilized in sound detecting pipe, prevent sundries from falling into；
（5）It is put into energy converter in each sound detecting pipe, by the way of marking sounding line, makes each branch energy converter in each sound detecting pipe
In measuring point in same level；
（6）Detection and data processing：Energy converter detect and upload data in each measuring point, finally carries out to the data of upload
Analysis and judgement.
This engineering method has the following advantages that：
（1）6 sound detecting pipes are buried, ground-connecting-wall detection range all standing, no dead angle makes detection data more really reflect wall
Integrality.
（2）Sound detecting pipe is dredged by the way of sound detecting pipe water filling, and with reinforcing bar, go on smoothly test can more.
（3）By the way of marking sounding line, make each branch energy converter measuring point in same level.
For ground-connecting-wall detection of construction quality, using this engineering method, the accuracy and feasibility of testing inspection ensure that,
The speed of testing inspection is improved, provides guarantee for the quality of construction.
Detailed description of the invention
Fig. 1 is existing sound detecting pipe " Z " font arrangement schematic diagram.
Fig. 2 is existing sound detecting pipe rectangular arrangement schematic diagram.
Fig. 3 is that this engineering method sound detecting pipe is dislocated arrangement schematic diagram.
Fig. 4 is this engineering method sound detecting pipe same column arrangement schematic diagram.
Specific embodiment
In conjunction with attached drawing, each key points for operation of this construction are described in detail.
The arrangement of sound detecting pipe：
The length of one width of subway ground-connecting-wall is generally 6m, generally arranges 4 soundings in construction site ground-connecting-wall ultrasound detection at present
Pipe, at " Z " font or rectangular arrangement, " Z " font arrangement is as shown in Figure 1, rectangular arrangement mode is as shown in Figure 2.By dividing
Analyse the arrangement of the above sound detecting pipe, it is found that subway ultrasonic wave ground-connecting-wall integrity detection haves the shortcomings that maximum at present
For：Since the length of a width ground-connecting-wall is generally 6m, and the detecting distance of ultrasonic wave is usually no more than 2.5m, as above cloth
Sound detecting pipe is set, since sound detecting pipe plane diagonal distance is too big, leads to not the mixed of the diagonal for detecting four sound detecting pipes
Solidifying soil property amount, the range very little of ground-connecting-wall wall integrity detection are not achieved the 1/2 of whole picture ground-connecting-wall area, detection range with
Outer there are biggish check frequencies, and there is great loopholes for the quality control aspect of ground-connecting-wall.For above situation, this engineering method
Research embedding 6 sound detecting pipes in diaphram wall, plane diagonal distance is suitable, can detect the diagonal of sound detecting pipe
Area of detection is significantly greatly increased in concrete quality, this engineering method, and detection range is effectively ensured, and reaches all standing, reinforces to wall coagulation
Shown in the control of native integrality, guarantee ground-connecting-wall construction quality, sound detecting pipe layout drawing 3 and Fig. 4.
Dredging, water filling and the sealing of sound detecting pipe：It should be greater than the diameter of energy converter, and according to the caliber of sound detecting pipe to reduce number
Make caliber slightly larger than transducer diameter according to error, therefore the reinforcing bar of Φ 28mm is used to dredge sound detecting pipe, makes detection can more smoothly
It carries out.It is filled the water in sound detecting pipe after dredging and utilizes plastic closures.
It is put into energy converter and makes it in the same horizontal line：By the way of marking sounding line, make each branch energy converter each
In measuring point same level in sound detecting pipe.
Detection and data processing：Energy converter detect and upload data in each measuring point, is sentenced using velocity of sound criterion, PSD
According to, wave amplitude criterion, dominant frequency criterion, actual measurement the methods of acoustic waveform, carry out data analysis and judgement.
Claims (1)
1. a kind of method of ultrasound examination subway construction of diaphragm wall quality, it is characterised in that include the following steps：
（1）Coercion underground continuous wall steel reinforcement cage；
（2）Arrange sound detecting pipe：Front two rows sound detecting pipe is arranged on steel reinforcement cage, the quantity of every row's sound detecting pipe is 3, every row's sounding
Pipe is all equally spaced from setting, and front two rows sound detecting pipe or so is staggered or front two rows sound detecting pipe is arranged in rows, connects to every width
Wall 6 sound detecting pipes of total arrangement；
（3）It transfers steel reinforcement cage and carries out in diaphram wall concreting；
（4）Sound detecting pipe dredging, water filling and sealing：Sound detecting pipe is dredged using reinforcing bar, go on smoothly detection can more；After dredging
Plastic closures are filled the water and utilized in sound detecting pipe, prevent sundries from falling into；
（5）It is put into energy converter in each sound detecting pipe, by the way of marking sounding line, makes each branch energy converter in each sound detecting pipe
In measuring point in same level；
（6）Detection and data processing：Energy converter detect and upload data in each measuring point, finally carries out to the data of upload
Analysis and judgement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793591.0A CN108894259A (en) | 2018-07-19 | 2018-07-19 | A kind of method of ultrasound examination subway construction of diaphragm wall quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793591.0A CN108894259A (en) | 2018-07-19 | 2018-07-19 | A kind of method of ultrasound examination subway construction of diaphragm wall quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108894259A true CN108894259A (en) | 2018-11-27 |
Family
ID=64351011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810793591.0A Pending CN108894259A (en) | 2018-07-19 | 2018-07-19 | A kind of method of ultrasound examination subway construction of diaphragm wall quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108894259A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666257A (en) * | 2020-12-18 | 2021-04-16 | 广东二十冶建设有限公司 | Concrete detection technology for encased multi-cavity steel plate concrete combined shear wall |
| CN114892640A (en) * | 2022-05-12 | 2022-08-12 | 中建八局第三建设有限公司 | Underground continuous wall guide wall and foundation pit top underground continuous wall and construction method thereof |
| CN117188652A (en) * | 2023-11-06 | 2023-12-08 | 内蒙古电力（集团）有限责任公司内蒙古电力经济技术研究院分公司 | Early warning-based fabricated building envelope and early warning method |
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| CN1755016A (en) * | 2004-09-28 | 2006-04-05 | 上海市第五建筑有限公司 | Construction method for installing plastic sounding pipe |
| CN103526784A (en) * | 2013-10-24 | 2014-01-22 | 江苏城市职业学院 | Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall |
| CN108132263A (en) * | 2017-12-13 | 2018-06-08 | 同济大学 | Across the hole radar detection device of diaphram wall internal flaw and method |
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2018
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Patent Citations (3)
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|---|---|---|---|---|
| CN1755016A (en) * | 2004-09-28 | 2006-04-05 | 上海市第五建筑有限公司 | Construction method for installing plastic sounding pipe |
| CN103526784A (en) * | 2013-10-24 | 2014-01-22 | 江苏城市职业学院 | Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall |
| CN108132263A (en) * | 2017-12-13 | 2018-06-08 | 同济大学 | Across the hole radar detection device of diaphram wall internal flaw and method |
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| 唐亮: "超声波透射法检测地连墙", 《建筑技术开发》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666257A (en) * | 2020-12-18 | 2021-04-16 | 广东二十冶建设有限公司 | Concrete detection technology for encased multi-cavity steel plate concrete combined shear wall |
| CN114892640A (en) * | 2022-05-12 | 2022-08-12 | 中建八局第三建设有限公司 | Underground continuous wall guide wall and foundation pit top underground continuous wall and construction method thereof |
| CN114892640B (en) * | 2022-05-12 | 2024-03-01 | 中建八局第三建设有限公司 | Detection device for underground diaphragm wall guide wall and foundation pit top underground diaphragm wall |
| CN117188652A (en) * | 2023-11-06 | 2023-12-08 | 内蒙古电力（集团）有限责任公司内蒙古电力经济技术研究院分公司 | Early warning-based fabricated building envelope and early warning method |
| CN117188652B (en) * | 2023-11-06 | 2024-01-09 | 内蒙古电力（集团）有限责任公司内蒙古电力经济技术研究院分公司 | Early warning-based fabricated building envelope and early warning method |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190123 Address after: 030013 No. 570 Jianbei Road, Taiyuan City, Shanxi Province Applicant after: Taiyuan Railway Construction Co., Ltd., Zhongtie 6-Bureau Group Applicant after: The Sixth Engineering Bureau Group Co., Ltd., China Railway Applicant after: Shanxi Huacheng Engineering Testing Co., Ltd. Applicant after: TAIYUAN CITY TIANDINGHENG CONCRETE ADMIXTURES TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 100036 Wanshou Road, Haidian District, Beijing, No. 2 Applicant before: The Sixth Engineering Bureau Group Co., Ltd., China Railway Applicant before: Taiyuan Railway Construction Co., Ltd., Zhongtie 6-Bureau Group Applicant before: Shanxi Huacheng testing Engineering Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181127 |
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| RJ01 | Rejection of invention patent application after publication |