CN112629406A - Oval bottom grouting amount measuring method based on three-dimensional scanner - Google Patents
Oval bottom grouting amount measuring method based on three-dimensional scanner Download PDFInfo
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- CN112629406A CN112629406A CN202011175715.2A CN202011175715A CN112629406A CN 112629406 A CN112629406 A CN 112629406A CN 202011175715 A CN202011175715 A CN 202011175715A CN 112629406 A CN112629406 A CN 112629406A
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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Abstract
The invention discloses an oval bottom tank slurry amount measuring method based on a three-dimensional scanner, which comprises the following steps of marking a steel bar reference point on a concrete oval surface; establishing a Cartesian coordinate system by taking the circle center of the concrete ellipsoid as an origin of coordinates, selecting a plurality of control reference points, and measuring the coordinate positions of the control reference points; scanning the concrete ellipsoid to obtain a scanned image of the concrete ellipsoid, finding out a coordinate value of a reference central point, and converting the coordinate value into a coordinate value under a Cartesian coordinate system; obtaining the coordinate position of each steel bar datum point; constructing a point position triangulation network according to the coordinate position of the point position triangulation network, and stretching to obtain a three-dimensional triangulation network; extending the oval steel plate outwards to obtain a three-dimensional steel plate structure; combining the three-dimensional triangular net and the three-dimensional steel plate structure according to the same coordinate system, taking the common part of the two graphs, and calculating the volume of the common part to obtain the tank size. The invention has uniform point positions for measuring the bottom surface of the elliptical concrete, is convenient to measure and meets the cost control requirement of site construction.
Description
Technical Field
The invention belongs to the technical field of construction, and particularly relates to an oval bottom grouting amount measuring method based on a three-dimensional scanner.
Background
The CAP1400 project is a special national significant scientific research project, is a sign of independent innovation of the nuclear power technology of the third generation in China, and is a large passive advanced pressurized water reactor nuclear power generating unit which is developed through innovation on the basis of digesting, absorbing and comprehensively mastering the passive technology of the AP1000 of the third generation nuclear power and has independent intellectual property rights in China and higher power.
In the design drawing of CAP1400, grouting material is needed to be adopted to fill and compact the layer between the bottom of CVBH and the external foundation A layer (theoretical thickness is 100mm) to provide a supporting surface for CVBH, but the space of the narrow gap is a spherical curved surface, and the theoretical grouting amount of the spherical curved surface is 32.2m3And the actual grouting amount is influenced by the construction size deviation of the layer A concrete, the total station is adopted for measurement, the measurement points are more, the time spent in inspection is long, the optimization of the construction period is not facilitated, and the working quality cannot be ensured.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oval bottom grouting amount measuring method based on a three-dimensional scanner aiming at the defects of the prior art.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an oval bottom grouting amount measuring method based on a three-dimensional scanner comprises the following steps:
step S1: marking the reference points of the steel bars on the concrete elliptical surface, and forming a flat surface by three adjacent points
Kneading;
step S2: establishing a Cartesian coordinate system by taking the circle center of the concrete ellipsoid as an origin of coordinates, selecting a plurality of control reference points, uniformly distributing the positions of the control reference points, and measuring the coordinate positions of the control reference points;
step S3: scanning the concrete ellipsoid by using a scanner to obtain a scanned image of the concrete ellipsoid;
step S4: finding out a reference central point in the scanned image, obtaining a coordinate value of the reference central point, and converting the coordinate value of the reference central point on the scanned image into a coordinate value under a Cartesian coordinate system;
step S5: obtaining the coordinate position of each steel bar datum point according to the data of the concrete elliptical surface;
step S6: constructing a point position triangulation network according to the coordinate position of each steel bar datum point, and vertically stretching the triangulation network upwards to obtain a three-dimensional triangulation network, so that the height of the three-dimensional triangulation network exceeds the bottom elevation of an oval steel plate laid on the concrete oval surface;
step S7: forming a graph on the oval steel plate according to a theoretical equation, and extending outwards to obtain a three-dimensional steel plate structure, wherein the height of the three-dimensional steel plate structure exceeds that of the concrete elliptical surface;
step S8: combining the three-dimensional triangular net and the three-dimensional steel plate structure according to the same coordinate system, taking the common part of the two graphs, and calculating the volume of the common part to obtain the grouting amount.
In order to optimize the technical scheme, the specific measures adopted further comprise:
further, the scanner is placed near the center point of the ellipse in step S3.
Further, in step S3, when the scanner scans the elliptical concrete surface to be inspected, the scanning point density needs to be determined according to the distance and the calculation accuracy.
Further, the scanning spot density ranges from 0.2 to 0.4 m.
Further, the data of the concrete ellipsoid in step S5 is selected according to the calculation range.
Further, in step S7, the theoretical equation in the figure is formed by the elliptical steel plate according to the theoretical equation
The body is as follows:
wherein: a represents the abscissa and H represents the ordinate.
The invention has the beneficial effects that:
the invention is based on an oval bottom grouting amount measuring method based on a three-dimensional scanner, in the implementation process, the scanner can be placed at a proper position near the center, the position of the scanner does not need to be calibrated, only three point positions are selected as control reference points arbitrarily and the coordinates of the control reference points are measured, and the coordinate values of the concrete structure in a construction coordinate system can be accurately obtained, so that the grouting amount is calculated by constructing a model, a basis is provided for preparation of construction production materials, the difficulty of calculation amount of a three-dimensional curved surface in construction is solved, the field work time is short, other operation work is not influenced, the safety is greatly improved, the detection is flexible, the remarkable improvement and the measurement are obviously convenient, and the cost control requirement of field construction is favorably met as a result.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic elevation view of the present invention;
FIG. 3 is a schematic elevation view of a structure according to the present invention;
FIG. 4 is a cloud plan of triangle dots constructed from scanned dots according to the present invention;
FIG. 5 is a drawing elevation view of the invention after construction of a triangulation network at a point location;
FIG. 6 is a schematic elevation view of an elliptical post-epitaxial steel structure constructed in accordance with the present invention;
FIG. 7 is a schematic elevation view of the present invention showing the combination of the tension of the triangulation network and the elongation of the elliptical steel structure;
FIG. 8 is a schematic view of the grouting amount of the present invention;
FIG. 9 is a coordinate position diagram of a control reference point of the present invention;
fig. 10 is a coordinate position diagram of each reference point of the reinforcing bars according to the present invention.
The reference signs are: 1-grouting position bottom surface, 2-bottom plate foundation, 3-A layer pouring concrete, 4-oval steel plate, 5-three-dimensional scanner, 6-control datum point and 7-reinforcing mesh.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The method for measuring the grouting amount of the oval bottom based on the HDS7000 three-dimensional scanner, as shown in FIG. 1 and FIG. 2, wherein the origin of the construction coordinate system is an oval center point, the axis A is in the eastern direction, the axis B is in the northward direction, the axis H is in the upward direction, and conforms to the right-hand coordinate system, the plane formed by the axis X and the axis Y of the scanner coordinate system is parallel to the ground, and also conforms to the right-hand coordinate system, includes the following steps:
step S1: marking the reference points of the steel bars on the concrete elliptical surface, and forming a flat surface by three adjacent points
Kneading;
step S2: the center of a circle of the concrete ellipsoid is used as the origin of coordinates, a cartesian coordinate system is established, a plurality of control reference points are selected, the positions are uniformly distributed, and the coordinate positions of the control reference points are measured, as shown in fig. 10.
Step S3: scanning the concrete ellipsoid by using a scanner to obtain a scanned image of the concrete ellipsoid;
the scanner is placed near the center point of the ellipse, when the scanner scans the concrete ellipsoid to be inspected, the scanning point location density is determined according to the distance and the calculation precision, and the scanning point location density range is 0.2-0.4 m.
Step S4: finding out a reference central point in the scanned image, obtaining a coordinate value of the reference central point, and converting the coordinate value of the reference central point on the scanned image into a coordinate value under a Cartesian coordinate system;
step S5: and selecting the data of the concrete surface to be calculated, wherein the radius of the data is 10m, and obtaining the coordinate position of each steel bar datum point on the concrete surface.
Wherein, the data of the concrete ellipsoid is selected according to the calculation range.
Step S6: constructing a point position triangular net according to the coordinate position of each steel bar datum point, vertically stretching the triangular net upwards for 5m to obtain a three-dimensional triangular net, and enabling the height to exceed the bottom elevation of an elliptical steel plate laid on the concrete elliptical surface;
step S7: forming a graph by the oval steel plate according to a theoretical equation, moving the graph to the bottom elevation of-12.876 m, extending the graph outwards for 1m, enabling the graph to be higher than the bottom surface of the concrete, and extending the graph outwards to obtain a three-dimensional steel plate structure, wherein the graph is higher than the oval surface of the concrete;
the theoretical equation is specifically as follows:
wherein: a represents the abscissa and H represents the ordinate.
Step S8: combining the three-dimensional triangular net and the three-dimensional steel plate structure according to the same coordinate system, taking the common part of the two graphs, and calculating the volume of the common part to obtain the grouting amount.
In this example, the calculated grouting amount was 32.9903m3And the theoretical grouting amount is 32.2m3The difference is not large, and the error is within a reasonable range.
The method has high precision, effectively solves the problem of measuring the grouting amount of the curved surface, and simultaneously has the following remarkable advantages:
1. the measuring speed is high, the measurement is convenient, and the quality control of site construction is favorably met;
2. the method has the advantages that accurate measurement is carried out according to actual conditions on site, and compared with the original total station inspection method, the measurement efficiency is improved;
3. the problem of curved surface measurement is effectively solved, and the application is flexible and convenient.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (6)
1. A method for measuring the grouting quantity at the bottom of an oval based on a three-dimensional scanner is characterized by comprising the following steps:
step S1: marking the reference points of the steel bars on the concrete elliptical surface, wherein the adjacent three points form a plane;
step S2: establishing a Cartesian coordinate system by taking the circle center of the concrete ellipsoid as an origin of coordinates, selecting a plurality of control reference points, uniformly distributing the positions of the control reference points, and measuring the coordinate positions of the control reference points;
step S3: scanning the concrete ellipsoid by using a scanner to obtain a scanned image of the concrete ellipsoid;
step S4: finding out a reference central point in the scanned image, obtaining a coordinate value of the reference central point, and converting the coordinate value of the reference central point on the scanned image into a coordinate value under a Cartesian coordinate system;
step S5: obtaining the coordinate position of each steel bar datum point according to the data of the concrete elliptical surface;
step S6: constructing a point position triangulation network according to the coordinate position of each steel bar datum point, and vertically stretching the triangulation network upwards to obtain a three-dimensional triangulation network, so that the height of the three-dimensional triangulation network exceeds the bottom elevation of an oval steel plate laid on the concrete oval surface;
step S7: forming a graph on the oval steel plate according to a theoretical equation, and extending outwards to obtain a three-dimensional steel plate structure, wherein the height of the three-dimensional steel plate structure exceeds that of the concrete elliptical surface;
step S8: combining the three-dimensional triangular net and the three-dimensional steel plate structure according to the same coordinate system, taking the common part of the two graphs, and calculating the volume of the common part to obtain the grouting amount.
2. The elliptical bottom grouting amount measuring method based on the three-dimensional scanner as claimed in claim 1, wherein: the scanner is placed near the center point of the ellipse in step S3.
3. The elliptical bottom grouting amount measuring method based on the three-dimensional scanner as claimed in claim 2, wherein: in step S3, when the scanner scans the concrete ellipsoid to be inspected, the scanning point density needs to be determined according to the distance and the calculation accuracy.
4. The three-dimensional scanner based elliptical bottom grouting amount measuring method according to claim 3, characterized in that: the scanning point density range is 0.2-0.4 m.
5. The three-dimensional scanner based elliptical bottom grouting amount measuring method according to claim 4, characterized in that: and the data of the concrete ellipsoid in the step S5 is selected according to the calculation range.
6. The three-dimensional scanner based elliptical bottom grouting amount measuring method according to claim 5, characterized in that: in step S7, the theoretical equation in the graph formed by the elliptical steel plate according to the theoretical equation is specifically:
wherein: a represents the abscissa and H represents the ordinate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116122850A (en) * | 2022-08-12 | 2023-05-16 | 武汉容晟吉美科技有限公司 | Grouting method for reinforcing steel ring to prevent air drum |
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| CN111366073A (en) * | 2020-03-09 | 2020-07-03 | 天津市捷威动力工业有限公司 | Device and method for evaluating gas production rate of soft package battery cell in pre-charging process based on three-dimensional laser scanning |
| US20200302660A1 (en) * | 2019-03-21 | 2020-09-24 | Ziehm Imaging Gmbh | X-ray system for the iterative determination of an optimal coordinate transformation between overlapping volumes that have been reconstructed from volume data sets of discretely scanned object areas |
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2020
- 2020-10-28 CN CN202011175715.2A patent/CN112629406B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4858146A (en) * | 1986-08-13 | 1989-08-15 | The Babcock & Wilcox Company | Automated design of structures using a finite element database |
| JP2000275083A (en) * | 1999-03-29 | 2000-10-06 | Okumura Engineering Corp | Method and device for measuring amount of stone load in sand carrier with grab bucket |
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| CN116122850B (en) * | 2022-08-12 | 2024-02-20 | 武汉精隧科技有限公司 | Grouting method for reinforcing steel ring to prevent air drum |
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