CN103744084A - Real-time monitoring and detecting method for underwater paving quality - Google Patents
Real-time monitoring and detecting method for underwater paving quality Download PDFInfo
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- CN103744084A CN103744084A CN201410022133.9A CN201410022133A CN103744084A CN 103744084 A CN103744084 A CN 103744084A CN 201410022133 A CN201410022133 A CN 201410022133A CN 103744084 A CN103744084 A CN 103744084A
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- sonar
- arranging
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- row cloth
- arrange
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a real-time monitoring and detecting method for underwater paving quality and belongs to the technical field of channel governance and river bed protection. The method comprises the following steps of (1) uniformly arranging concrete blocks on row cloth; (2), mounting and fixing a sonar; (3) enabling the sonar to send a sonar signal to paved upper row cloth and lower row cloth when the upper row cloth is paved; (4) receiving and analyzing a reflected sonar signal and calculating the widths of the upper row cloth and the lower row cloth to further judge whether the overlapping quality meets the design demands or not. The paving quality of various water bodies can be detected, and the unfavorable influence of turbidity or flow speed of the water bodies to the detection is overcome; a diver does not need to dive underwater, detection and paving can be performed at the same time, so the direction of the row cloth can be quickly adjusted, and an unqualified overlapping condition is avoided. The real-time monitoring and detecting method for the underwater paving quality has the advantages of high detection precision, fast speed, simple operation, low cost and the like, and is conveniently promoted and applied in the detection of the underwater paving construction quality of channel governance and river bed protection engineering.
Description
Technical field
The invention belongs to Waterway Regulation and stream bed protection technical field, be specifically related to a kind of Real-time quality monitoring detection method of arranging under water.
Background technology
In Waterway Regulation and stream bed protection engineering, that need to make at materials such as bottom, riverbed laying polypropylene woven cloth arranges, and then on arranging, presses stone or concrete, thereby avoids bottom, riverbed by current scour, prevents that dykes and dams or submerged structure from caving in.
When laying is arranged; on arrange and under lap width between arranging be the key that quality is arranged in impact; if lap width is lower than designing requirement; will cause that current carry out scour in lap gap region; thereby the row's of causing seam place bed-sit leaks; lap width makes the protection failure to riverbed, if higher than designing requirement, can cause again waste to make engineering cost too high.
Therefore, need to carry out monitor and detection to the quality of arranging, the quality determining method of arranging under water adopting is at present: on the certain position apart from the edge of arranging, colored rib is set, after having arranged, frogman carries underwater camera or distance measuring equipment is made a video recording, found range colored rib, then whether qualified in judgement if arranging quality, and result is divided three kinds of situations: 1) if under the colored rib of arranging invisible, explanation is arranged and is exceeded standard; 2) if under the colored rib of arranging visible, and under the edge of arranging invisible, will by measuring, arrange edge and under the Distance Judgment of arranging between colored rib arrange whether qualified; 3) if under colored rib and the edge of arranging all visible, the upper and lower not overlap joint of arranging is described, arrange defective.The shortcoming of the method is: 1), low visibility high at turbidity in the situation that, range estimation or photographic effect are poor or be difficult to carry out; 2) in the situation that current are more anxious, frogman cannot carry out diving operation, cannot detect arranging quality; 3) detect after can only having arranged, cannot in the process of arranging, to quality, monitor in real time, if detected, find to arrange off quality, will again arrange.
Summary of the invention
The object of the invention is for above-mentioned defect, a kind of various water condition conditions that can be applicable to arrange are under water provided, and can arrange quality monitoring detection method under water to what arrange that quality carries out detecting in real time.
Above-mentioned purpose is achieved through the following technical solutions:
Arrange a Real-time quality monitoring detection method under water, comprise the following steps:
1) concrete piece is evenly set on arranging;
2) at the ship side of Working Ships, install, fixing sonar, make the top that sonar arranges under being positioned at and be positioned at a side of arranging, make sonar following and apart from more than water-bed 1.5m apart from water surface 1m simultaneously;
3) when arranging on laying, sonar under having laid, arrange and on the transmitting Sonar Signal of arranging, the transmission frequency of single beam sonar is controlled between 300KHz～700KHz, signal cover is controlled between 5m～100m, or the transmission frequency of multi-beam sonar is controlled between 0.9MHz～3.75MHz, and signal cover is controlled between 5m～50m;
4) receive and analyze the Sonar Signal reflecting, calculate upper and lower width of arranging, and then judge whether arrange quality meets design requirement.
Preferably, the volume of described concrete piece is 0.005～0.05m3, and every square metre arrange is provided with 2～5 concrete pieces.
It is in order to reflect Sonar Signal that concrete piece is set on arranging, make sonar can accurate detection to arranging, thereby avoid the interference of water-bed various complex-terrain, foreign material; When the installation site of sonar can guarantee Sonar Signal all standing surveyed area and can and not arrange by hull under water, unsettled arranging stops; The transmission frequency of sonar and signal cover can guarantee the precision and the sensing range that detect.
By receiving and analyze the Sonar Signal reflecting, then calculate upper and lower width of arranging after overlap joint, just can judge whether arrange quality meets design requirement.If the width of arranging upper and lower after overlap joint is greater than the upper and lower width sum of arranging, and the upper and lower not overlap joint of arranging is described, arranges defective; If the width of arranging upper and lower after overlap joint is less than the upper and lower width sum of arranging, further by calculating judge arrange whether qualified or exceed standard.
The invention has the beneficial effects as follows:
The present invention uses Principles of Acoustics to detect arranging quality under water, can be under various water condition conditions arrange in carry out, overcome water turbidity or flow velocity to detecting the adverse effect causing; Do not need water under frogman, avoided the potential safety hazard brought thus, reduced human cost; The present invention can limit arrange frontier inspection and survey, and can monitor in real time the quality in the process of arranging, and when occurring maybe occurring arranging overlap joint quality problems, can adjust rapidly the orientation of arranging, thereby avoid overlapping the generation of defective situation.The present invention also has that accuracy of detection is high, and speed is fast, simple to operate, and low cost and other advantages is convenient to apply in the quality testing of placement under water of Waterway Regulation and stream bed protection engineering.
Accompanying drawing explanation
Fig. 1 arranges schematic diagram under water;
Fig. 2 is upper and lower overlap joint of arranging and sonar scheme of installation;
Fig. 3 is the upper and lower not schematic diagram of overlap joint of arranging;
Fig. 4 is the schematic diagram that the upper and lower lap width of arranging is less than designing requirement;
Fig. 5 is the upper and lower satisfactory schematic diagram of overlap joint of arranging;
Fig. 6 is the schematic diagram that the upper and lower overlap joint of arranging exceeds standard.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
Arrange a Real-time quality monitoring detection method under water, comprise the following steps:
1) concrete piece is evenly set on arranging;
2) at the ship side of Working Ships, install, fixing sonar, make the top that sonar arranges under being positioned at and be positioned at a side of arranging, make sonar following and apart from more than water-bed 1.5m apart from water surface 1m simultaneously;
3) when arranging on laying, sonar under having laid, arrange and on the transmitting Sonar Signal of arranging, the transmission frequency of single beam sonar is controlled between 300KHz～700KHz, signal cover is controlled between 5m～100m, or the transmission frequency of multi-beam sonar is controlled between 0.9MHz～3.75MHz, and signal cover is controlled between 5m～50m;
4) receive and analyze the Sonar Signal reflecting, calculate upper and lower width of arranging, and then judge whether arrange quality meets design requirement.
Described concrete piece is cuboid, and volume is 0.01m3, and length is respectively 0.4m, 0.26m, 0.1m, and every square metre arrange is provided with 4 concrete pieces.This setting makes sonar Effect on Detecting best, can avoid the interference of water-bed various complex-terrain, foreign material.
According to quality control standards (QCS), lap width permissible variation is 0.5B～2B, and B is design lap width.For example designing lap width is 3m, and 1.5～6m is qualified, and 0～1.5m or 6m are defective above, and the width of arranging is 15m.
After arranging at the bottom of depositing in water, upper and lower overlap joint of arranging not there will be overlap joint, lap width is not enough, normally overlap and overlap wide four kinds of situations.
1) do not overlap: upper and lower width of arranging is greater than the upper and lower width sum of arranging, as shown in Figure 3;
2) lap width is less than designing requirement: upper and lower width of arranging is 29m, and the width that calculates actual overlap joint is 1m, as shown in Figure 4;
3) lap width meets the requirements: upper and lower width of arranging is 28m, and the width that calculates actual overlap joint is 2m, as shown in Figure 5;
4) overlap joint exceeds standard: upper and lower width of arranging is 22m, and the width that calculates actual overlap joint is 8m, as shown in Figure 6.
Claims (2)
1. arrange a Real-time quality monitoring detection method under water, it is characterized in that comprising the following steps:
1) concrete piece is evenly set on arranging;
2) at the ship side of Working Ships, install, fixing sonar, make the top that sonar arranges under being positioned at and be positioned at a side of arranging, make sonar following and apart from more than water-bed 1.5m apart from water surface 1m simultaneously;
3) when arranging on laying, sonar under having laid, arrange and on the transmitting Sonar Signal of arranging, the transmission frequency of single beam sonar is controlled between 300KHz～700KHz, signal cover is controlled between 5m～100m, or the transmission frequency of multi-beam sonar is controlled between 0.9MHz～3.75MHz, and signal cover is controlled between 5m～50m;
4) receive and analyze the Sonar Signal reflecting, calculate upper and lower width of arranging, and then judge whether arrange quality meets design requirement.
2. the Real-time quality monitoring detection method of arranging under water according to claim 1, is characterized in that: the volume of described concrete piece is 0.005～0.05m3, and every square metre arrange is provided with 2～5 concrete pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410022133.9A CN103744084B (en) | 2014-01-17 | 2014-01-17 | One arranges Real-time quality monitoring detection method under water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410022133.9A CN103744084B (en) | 2014-01-17 | 2014-01-17 | One arranges Real-time quality monitoring detection method under water |
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| CN103744084A true CN103744084A (en) | 2014-04-23 |
| CN103744084B CN103744084B (en) | 2016-06-08 |
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| CN201410022133.9A Active CN103744084B (en) | 2014-01-17 | 2014-01-17 | One arranges Real-time quality monitoring detection method under water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064940A (en) * | 2017-03-23 | 2017-08-18 | 华南理工大学 | A kind of high undersea hydrostatic pressures water is removed contamination shower nozzle range unit |
| CN108051820A (en) * | 2017-12-28 | 2018-05-18 | 武汉长江航道救助打捞局 | A kind of sound identification item and the method for arranging quality testing under water using sound identification item progress |
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| CN1299903A (en) * | 2000-10-30 | 2001-06-20 | 中国水利水电科学研究院 | Underwater drawing, arranging and constructing process |
| CN1614441A (en) * | 2004-12-01 | 2005-05-11 | 南京市长江河道管理处 | Automatic underwater object positioning method and system |
| US7006406B2 (en) * | 1999-09-17 | 2006-02-28 | Furuno Electric Company, Limited | Underwater detecting apparatus, depth measuring apparatus and display apparatus |
| CN102277853A (en) * | 2011-04-26 | 2011-12-14 | 中交四航工程研究院有限公司 | Novel quick and reliable underwater arrangement technology |
| CN103088828A (en) * | 2011-11-01 | 2013-05-08 | 中交上海航道局有限公司 | Construction method for laying underwater geogrids |
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2014
- 2014-01-17 CN CN201410022133.9A patent/CN103744084B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7006406B2 (en) * | 1999-09-17 | 2006-02-28 | Furuno Electric Company, Limited | Underwater detecting apparatus, depth measuring apparatus and display apparatus |
| CN1299903A (en) * | 2000-10-30 | 2001-06-20 | 中国水利水电科学研究院 | Underwater drawing, arranging and constructing process |
| CN1614441A (en) * | 2004-12-01 | 2005-05-11 | 南京市长江河道管理处 | Automatic underwater object positioning method and system |
| CN102277853A (en) * | 2011-04-26 | 2011-12-14 | 中交四航工程研究院有限公司 | Novel quick and reliable underwater arrangement technology |
| CN103088828A (en) * | 2011-11-01 | 2013-05-08 | 中交上海航道局有限公司 | Construction method for laying underwater geogrids |
Non-Patent Citations (1)
| Title |
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| 赵钢等: "混凝土铰链沉排护岸工程水下部分铺设质量检测技术研究与探讨", 《长江科学院院报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064940A (en) * | 2017-03-23 | 2017-08-18 | 华南理工大学 | A kind of high undersea hydrostatic pressures water is removed contamination shower nozzle range unit |
| CN107064940B (en) * | 2017-03-23 | 2023-04-21 | 华南理工大学 | Underwater high-pressure water trash removal nozzle ranging device |
| CN108051820A (en) * | 2017-12-28 | 2018-05-18 | 武汉长江航道救助打捞局 | A kind of sound identification item and the method for arranging quality testing under water using sound identification item progress |
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| Publication number | Publication date |
|---|---|
| CN103744084B (en) | 2016-06-08 |
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