CN105241437A - Hyperbola steel reinforced concrete cooling tower cylinder wall construction measuring method - Google Patents
Hyperbola steel reinforced concrete cooling tower cylinder wall construction measuring method Download PDFInfo
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- CN105241437A CN105241437A CN201510822091.1A CN201510822091A CN105241437A CN 105241437 A CN105241437 A CN 105241437A CN 201510822091 A CN201510822091 A CN 201510822091A CN 105241437 A CN105241437 A CN 105241437A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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Abstract
The invention belongs to the field of constructional engineering and particularly relates to a hyperbola steel reinforced concrete cooling tower cylinder wall construction measuring method. During construction, firstly, a total station is utilized for conducting plane positioning measurement on the center of the foundation bottom of a cooling tower, then, a plumb bob instrument and a distance measuring instrument are used for controlling coordinates and elevation of a cooling tower construction control point (a central suspension disc), finally, the distance measuring instrument and a level gauge are used for being aligned to a construction control point (the central suspension disc), and the cooling tower cylinder wall radius construction size is measured and positioned. On the basis of the central suspension disc and the cooling tower central point, two-point-one-line construction measurement is rapidly achieved through the high-precision total station, the plumb bob instrument, the level gauge and the distance measurement instrument, the human factor influences of a plumb bob and tapeline pull wire measuring method are avoided, the technological operation is easy, and the measuring precision is ensured.
Description
Technical field
The invention belongs to building engineering field, particularly a kind of hyperbolic steel reinforced concrete Cooling Tower Wall Construction measuring method.By the outstanding dish in the center of processing and fabricating and central point, with simple " two one lines " measuring method, rapid construction is measured, and operation is simple, and location survey is accurate.
Background technology
Along with the development of national economy and the propelling of modernization construction, the growing country that makes of electricity needs is constantly increased Electricity Investment, Generator Set construction increases, along with the expansion of single-machine capacity, the exploitation of water resource are subject to a definite limitation, therefore large power plant focuses on the development cycle utilization of water resource, is equipped with the cooling tower equipment structures of water circulation use.Hyperbolic curve Reinforced Concrete Cooling Tower is less than water tank type cooling structures floor area, characteristics of compact layout, water loss are little, cooling effect not by wind impact, than induced cooling tower easy maintenance, saves energy, therefore also becomes the important structures of big power station's cooling water system.Hyperbolic curve Reinforced Concrete Cooling Tower is widely used because of its good applicability and economy, it is primarily of compositions such as storage cistern, tower barrel base, pillar, ring beam, barrel and rigidity ring beams, Cooling Tower Wall is hyperboloid of one sheet shape thin-walled space structure, with the change of height continuous print variable diameters, become the gradient, variable cross section, be the part of maximum, the most critical of difficulty in cooling tower construction.
Generally common plumb bob and tape measure bracing wire measuring method, centre of cooling column is located by plumb bob, tape measure cooling tower elevation and Construction control radius, be subject to measuring the impact that the precision of tape measure is different with operator's pulling force, the impact of measuring accuracy, especially the elasticity in tape measure stretching process, directly has influence on the precision of construction survey.
Summary of the invention
In order to overcome above-mentioned defect of the prior art, the present invention, by the improvement to traditional Cooling Tower Wall measuring method, provides a kind of technique simple, and location survey is accurate, is convenient to the method that double-curve cooling column Wall Construction is measured.
Technical scheme of the present invention is: a kind of hyperbolic steel reinforced concrete Cooling Tower Wall Construction measuring method, comprises the following steps:
(1) utilize total powerstation to carry out plane positioning to cooling tower foundation bottom center, set up the centre of cooling column point made by built-in fitting;
(2) the outstanding dish in center is set up: the center of cooling tower measurement and positioning hangs dish and is made up of the steel plate of diameter 250mm, thick 10mm, four diameter 8mm wire rope are put in radius 95mm place symmetry, the other end of wire rope is fixed on the cooling tower cylinder wall form of having constructed, put down with the end opening of construction layer template, ensure four wire rope when stretch-draw is fixed at same plane, and make the outstanding dish in center smooth; Center hangs the basic point that dish is cooling tower construction layer cross section size Control, is again the laser pickoff that measurement and absolute altitude control;
(3) from the outstanding dish projection in plummet Yi Xiang center of centre of cooling column point, with Laser plumb instrument centering adjustment outstanding dish mid point, the wire rope Mobility Center that fastening center hangs dish hangs during dish looks for, and is fixed by wire rope after Laser plumb instrument centering adjustment hangs the mid point of dish;
(4) distance between dish is hanged with stadia surveying centre of cooling column Dian Yu center, the center of drawing hangs the central point elevation coordinate of dish, hang the mid point of dish again with stadimeter centering adjustment, measure the suitable for reading and center of Cooling Tower Wall inner formword and hang the oblique radius of construction between dish.
Described center hangs screw rod dish being preferably welded with a diameter 8mm, and by upper disk center, screw rod upper end exceeds upper disk surface 15mm, the screw rod exposing center and hang dish upper disk surface is surrounded by measuring reflection tinfoil or painting is brushed with reflective coating.
Cooling Tower Wall is hyperboloid of one sheet shape thin-walled space structure, and moulding is complicated, and ensure the construction of components three-dimensional space structure, what first solve is three-dimensional measurement and positioning.Three-dimensional measurement and positioning present stage generally adopts GPS location technology or two transit intersection technology, but its precision measured, applicability are subject to certain restrictions when cooling tower construction.In order to ensure accuracy and the practical operation convenience of measurement, cooling tower three dimensional space coordinate is decomposed into two dimensional surface coordinate and elevation by the present invention, high-precision total powerstation, plummet instrument, spirit-leveling instrument and stadimeter is adopted to carry out plane positioning measurement to space nodes, " two one lines " the measurement and positioning method of utilization, carries out measurement and positioning to cooling tower construction.First total powerstation is utilized to carry out plane positioning measurement to the central point of cooling tower foundation bottom during construction, then plummet instrument and stadimeter controlled cooling model tower construction control points (the outstanding dish in center) coordinate and elevation is used, finally aim at construction control points (the outstanding dish in center), measurement and positioning Cooling Tower Wall radius construction size with stadimeter and spirit-leveling instrument.
Cooling Tower Wall Construction measuring method of the present invention, by the outstanding dish in center and centre of cooling column point, " two one lines " construction survey is realized fast by high-precision total powerstation, plummet instrument, spirit-leveling instrument and stadimeter, overcome human factor impact and the error of plumb bob and tape measure bracing wire measuring method, technological operation is simple, measuring accuracy is secure, and construction application is respond well.
Embodiment
Below the present embodiment is described in further detail, but the present invention is not limited to specific embodiment.
Embodiment 1:
A kind of hyperbolic steel reinforced concrete Cooling Tower Wall Construction measuring method, comprises the following steps:
(1) utilize total powerstation to carry out plane positioning to cooling tower foundation bottom center, set up the centre of cooling column point made by built-in fitting;
(2) the outstanding dish in center is set up: the center of cooling tower measurement and positioning hangs dish and is made up of the steel plate of diameter 250mm, thick 10mm, four diameter 8mm wire rope are put in radius 95mm place symmetry, the other end of wire rope is fixed on the cooling tower cylinder wall form of having constructed, put down with the end opening of construction layer template, ensure four wire rope when stretch-draw is fixed at same plane, and make the outstanding dish in center smooth; Center hangs the basic point that dish is cooling tower construction layer cross section size Control, is again the laser pickoff that measurement and absolute altitude control;
(3) from the outstanding dish projection in plummet Yi Xiang center of centre of cooling column point, with Laser plumb instrument centering adjustment outstanding dish mid point, the wire rope Mobility Center that fastening center hangs dish hangs during dish looks for, and is fixed by wire rope after Laser plumb instrument centering adjustment hangs the mid point of dish;
(4) distance between dish is hanged with stadia surveying centre of cooling column Dian Yu center, the center of drawing hangs the central point elevation coordinate of dish, hang the mid point of dish again with stadimeter centering adjustment, measure the suitable for reading and center of Cooling Tower Wall inner formword and hang the oblique radius of construction between dish.
Described center hangs screw rod dish being welded with a diameter 8mm, and by upper disk center, screw rod upper end exceeds upper disk surface 15mm, the screw rod exposing center and hang dish upper disk surface is surrounded by measuring reflection tinfoil or painting is brushed with reflective coating.
Cooling Tower Wall is hyperboloid of one sheet shape thin-walled space structure, and moulding is complicated, and ensure the construction of components three-dimensional space structure, what first solve is three-dimensional measurement and positioning.Three-dimensional measurement and positioning present stage generally adopts GPS location technology or two transit intersection technology, but its precision measured, applicability are subject to certain restrictions when cooling tower construction.In order to ensure accuracy and the practical operation convenience of measurement, cooling tower three dimensional space coordinate is decomposed into two dimensional surface coordinate and elevation by the present invention, high-precision total powerstation, plummet instrument, spirit-leveling instrument and stadimeter is adopted to carry out plane positioning measurement to space nodes, " two one lines " the measurement and positioning method of utilization, carries out measurement and positioning to cooling tower construction.First total powerstation is utilized to carry out plane positioning measurement to the central point of cooling tower foundation bottom during construction, then plummet instrument and stadimeter controlled cooling model tower construction control points (the outstanding dish in center) coordinate and elevation is used, finally aim at construction control points (the outstanding dish in center), measurement and positioning Cooling Tower Wall radius construction size with stadimeter and spirit-leveling instrument.
Cooling Tower Wall Construction measuring method of the present invention, by the outstanding dish in center and centre of cooling column point, " two one lines " construction survey is realized fast by high-precision total powerstation, plummet instrument, spirit-leveling instrument and stadimeter, overcome human factor impact and the error of plumb bob and tape measure bracing wire measuring method, technological operation is simple, measuring accuracy is secure, and construction application is respond well.
Claims (2)
1. a hyperbolic steel reinforced concrete Cooling Tower Wall Construction measuring method, is characterized in that, comprise the following steps:
(1) utilize total powerstation to carry out plane positioning to cooling tower foundation bottom center, set up the centre of cooling column point made by built-in fitting;
(2) the outstanding dish in center is set up: the center of cooling tower measurement and positioning hangs dish and is made up of the steel plate of diameter 250mm, thick 10mm, four diameter 8mm wire rope are put in radius 95mm place symmetry, the other end of wire rope is fixed on the cooling tower cylinder wall form of having constructed, put down with the end opening of construction layer template, ensure four wire rope when stretch-draw is fixed at same plane, and make the outstanding dish in center smooth; Center hangs the basic point that dish is cooling tower construction layer cross section size Control, is again the laser pickoff that measurement and absolute altitude control;
(3) from the outstanding dish projection in plummet Yi Xiang center of centre of cooling column point, with Laser plumb instrument centering adjustment outstanding dish mid point, the wire rope Mobility Center that fastening center hangs dish hangs during dish looks for, and is fixed by wire rope after Laser plumb instrument centering adjustment hangs the mid point of dish;
(4) distance between dish is hanged with stadia surveying centre of cooling column Dian Yu center, the center of drawing hangs the central point elevation coordinate of dish, hang the mid point of dish again with stadimeter centering adjustment, measure the suitable for reading and center of Cooling Tower Wall inner formword and hang the oblique radius of construction between dish.
2. a kind of hyperbolic steel reinforced concrete Cooling Tower Wall Construction measuring method according to claim 1, it is characterized in that, described center hangs screw rod dish being welded with a diameter 8mm, and by upper disk center, screw rod upper end exceeds upper disk surface 15mm, and the screw rod exposing center and hang dish upper disk surface is surrounded by measuring reflection tinfoil or painting is brushed with reflective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510822091.1A CN105241437A (en) | 2015-11-24 | 2015-11-24 | Hyperbola steel reinforced concrete cooling tower cylinder wall construction measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510822091.1A CN105241437A (en) | 2015-11-24 | 2015-11-24 | Hyperbola steel reinforced concrete cooling tower cylinder wall construction measuring method |
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| CN105241437A true CN105241437A (en) | 2016-01-13 |
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| CN201510822091.1A Pending CN105241437A (en) | 2015-11-24 | 2015-11-24 | Hyperbola steel reinforced concrete cooling tower cylinder wall construction measuring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823472A (en) * | 2016-05-14 | 2016-08-03 | 平顶山学院 | Rapid portable measuring blanket for simulating minor features |
| CN108692716A (en) * | 2018-05-17 | 2018-10-23 | 中国化学工程第三建设有限公司 | A kind of measurement method of steel construction indirect cool tower upper cylinder section |
| CN108871151A (en) * | 2018-08-15 | 2018-11-23 | 中国电建集团贵州电力设计研究院有限公司 | A kind of measuring device and its application method for cooling tower tower radius |
-
2015
- 2015-11-24 CN CN201510822091.1A patent/CN105241437A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823472A (en) * | 2016-05-14 | 2016-08-03 | 平顶山学院 | Rapid portable measuring blanket for simulating minor features |
| CN105823472B (en) * | 2016-05-14 | 2018-07-17 | 平顶山学院 | It simulates ninor feature rapid and handy formula and measures blanket |
| CN108692716A (en) * | 2018-05-17 | 2018-10-23 | 中国化学工程第三建设有限公司 | A kind of measurement method of steel construction indirect cool tower upper cylinder section |
| CN108871151A (en) * | 2018-08-15 | 2018-11-23 | 中国电建集团贵州电力设计研究院有限公司 | A kind of measuring device and its application method for cooling tower tower radius |
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Application publication date: 20160113 |
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| WD01 | Invention patent application deemed withdrawn after publication |