CN101750037A - Accurate measuring method of large-scale irregular earthwork excavated volume - Google Patents
Accurate measuring method of large-scale irregular earthwork excavated volume Download PDFInfo
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- CN101750037A CN101750037A CN200810203729A CN200810203729A CN101750037A CN 101750037 A CN101750037 A CN 101750037A CN 200810203729 A CN200810203729 A CN 200810203729A CN 200810203729 A CN200810203729 A CN 200810203729A CN 101750037 A CN101750037 A CN 101750037A
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Abstract
The invention relates to earthwork excavation, in particular to a method for measuring the earthwork excavated volume. An accurate measuring method of the large-scale irregular earthwork excavated volume comprises the following steps of: a, collecting datum of discrete height three-dimension coordinate points of an original ground surface and a designing surface according to an irregular triangulated network; b, establishing two sets of data documents of the original ground surface and the designing surface according to the three-dimension coordinate points collected on spot and establishing an irregular triangulation network digital height model for designing a space complicated curve by using CASS software; and c, calculating earth volume to be excavated by using a grid network method in the CASS software.
Description
Technical field
The present invention relates to earth excavation, relate in particular to a kind of assay method of earthwork excavated volume.
Background technology
In capital construction, generally all face large-scale earth excavation, generally need measure earthwork excavated volume in advance.Large-scale for some, surface relief is big, is irregular working-yard, as golf course earthwork moulding, Garden Planning, highway engineering and large-scale earth and rock works.In construction, the mensuration of earth volume is usually prolonged comparatively traditional grid method, contouring method and the longitudinal and transverse sectional drawing method of usefulness at present and is calculated, the method is inefficiency not only, and degree of accuracy does not guarantee yet, therefore, in the construction management process, do not embody efficient, convenient, characteristic of accurate.In large-scale cubic metre of earth and stone carrying work progress, want scientific and reasonable organizing construction, avoid the unnecessary earthwork to repeat carrying, simultaneously also for accurate metering, just must before construction and after the construction, comparatively accurately calculate, so that carry out earthwork balance work the earth volume of carrying.
Along with the universal and popularization of computer technology, some professional surveying and mapping softwares also release one after another and are applied in the practice of construction and go in recent years, also given full play to efficiently, acted on easily.But for the large-scale earth and rock works that resembles golf course earthwork moulding and have the garden landscape effect, as deciding earth volume with its instrumentation, then the degree of accuracy of its mensuration is also inadequate slightly.
Summary of the invention
The present invention is intended to solve the above-mentioned defective of prior art, and a kind of accurate measuring method of large-scale irregular earthwork excavated volume is provided.The present invention effectively reduces construction cost, improves construction quality, does not influence total duration.
The present invention is achieved in that a kind of accurate measuring method of large-scale irregular earthwork excavated volume, and it comprises the following steps:
A, the data of pressing the discrete three-dimensional coordinate point of TIN collection original ground and design surface;
B, set up original ground and design surface two sets of data files, utilize CASS software to set up the complex-curved TIN digital elevation model in design space according to the three-dimensional coordinate point of collection in worksite;
C, the earth volume of utilizing the square grid method calculating in the CASS software to excavate.
Described accurate measuring method of large-scale irregular earthwork excavated volume, described step a are the discrete three-dimensional coordinate point data of gathering original ground and design surface with total powerstation or GPS.
Described accurate measuring method of large-scale irregular earthwork excavated volume, described step a are according to the feature of the three-dimensional coordinate point on two complex space curved surfaces of certain intervals collection with the accurate response topography and geomorphology.
Described accurate measuring method of large-scale irregular earthwork excavated volume, any point-to-point transmission of described collection be spaced apart 6-10 rice or 2-5 rice.
Described accurate measuring method of large-scale irregular earthwork excavated volume comprises also among the described step b that the interpolation triangulation network sets up triangulation network digital elevation model.
Described accurate measuring method of large-scale irregular earthwork excavated volume, described step c comprises: in CASS software,
" square grid method Earthwork calculation " order in c1, selection " engineering application " menu bar; Eject " input elevation coordinate data file name " dialog box, select and open the data file of original ground;
C2, selection Earthwork calculation boundary line;
The graticule mesh width is calculated in c3, input, generates the graticule mesh row, column at interval;
C4, the triangulation network file of design surface is selected in prompting then, ejects dialog box and selects and open to generate design surface triangulation network filename;
C5, a demonstration cubic metre of earth excavation and filling amount result of calculation.
Described accurate measuring method of large-scale irregular earthwork excavated volume, among the described c3, the calculating graticule mesh width value of input is 2 meters, 3 meters or 5 meters.
Digital elevation model notion: digital terrain model---DTM (Digital Terrain Model) utilizes the simple statistical representation of the coordinate points of a large amount of known x, y that select, z in the arbitrary system to continuous ground, in other words, DTM is exactly the numeral expression of topographical surface form attribute information, is that the numeral that has locus feature and landform attributive character is described.The attribute information of topographical surface form generally comprises elevation, the gradient, aspect etc.
Digital terrain model mesorelief attribute is called digital elevation model (Digital ElevationModel, vehicle economy M) during for elevation.
The main representation model of digital elevation model (DEM): in Geographic Information System, the topmost three kinds of representation models of DEM are: regular grid model, level line model and TIN model.
The present invention utilizes TIN board design face to set up the DTM model can reduce the data redundancy amount, and the topography and landform character of accurate and visual reflection design surface; Thereby the Earthwork Calculation in the time of can solving original ground and design surface and be the complex space curved surface; Precision height of the present invention, high-level efficiency, very convenient are convenient to the large-scale cubic metre of earth and stone carrying of scientific guidance construction, make earthwork construction have controllability more, avoid cubic metre of earth unnecessary repeating to carry, and save construction cost, guarantee the duration.
Embodiment
Cass software is a land deeds ground formation figure software of China south mapping company exploitation, and this software proposes contouring method, DTM method, Earthwork calculation method such as method and grid method between two durations, and the computing function of earth volume is very powerful.The applicant all adopts Cass software to carry out Earthwork Calculation in golf course construction and the construction of other earth and rock works for many years, gropes through constantly probing into, and sums up a cover Earthwork calculation method on this basis of software.This method not only can guarantee computational accuracy, and can satisfy the Earthwork Calculation of all kinds of earth and rock workses according to the requirement difference of data acquisition modes, and practical operation is easy, flexible, grasps easily.
The present invention utilizes total powerstation or GPS scene to gather the discrete three-dimensional coordinate point (x of original ground and design surface on the spot particularly, y, z) data, to gather two three-dimensional coordinate point (x on the complex space curved surface according to certain intervals, y, z), the some spacing distance is decided according to the actual landform landforms, but will guarantee the feature of accurate response topography and geomorphology.Set up the data file of original ground and design surface two cover dat forms according to the three-dimensional coordinate point of collection in worksite, utilize CASS software to set up the complex-curved TIN digital elevation model in design space (DTM model), this model can accurate and visual board design face topography and landform character, software is generated as Sjw form triangulation network data file automatically when setting up digital elevation model, calculates earth volume in conjunction with the square grid method in the software then.
When gathering the three-dimensional coordinate point of original ground, design surface on the spot, press the TIN sampling according to sampling interval generally according to the sampling theory scene.For the physical features flat country, dot spacing is not more than 10 meters, to increase the density of sampled point for topography and geomorphology big rise and fall zone, dot spacing is not more than 5 meters, make that the density of sampled point is enough, distribute rationally, actual state that can the accurate description topography and geomorphology, when needs increase the triangulation network, can adopt interpolation method to increase the triangulation network.
The interpolation triangulation network: when needing increase to gather discrete spot elevation in the coverage of survey area, the method for the data of collection by interpolation increased on the TIN digital elevation model figure that has set up build the triangulation network.Below, build the detailed process explanation that data instance carries out Earthwork Calculation with the alley fruit mountain range of certain golf course:
In CASS software:
1) selects " setting up DTM " order in " level line " menu bar by data; Eject " input data file name " dialog box, in dialog box, select and open the data file of design surface * dat form; Generate TIN digital elevation model (DTM).
2) select " square grid method Earthwork calculation " order in " engineering application " menu bar; Eject " input elevation coordinate data file name " dialog box, select and open the data file of original ground * dat form; Select the Earthwork calculation boundary line; The graticule mesh width is calculated in input, and this width is irrelevant with the width of sampling on the spot, only is to generate the graticule mesh row, column at interval; The triangulation network file of design surface * sjw form is selected in prompting then, ejects dialog box and selects and open to generate design surface triangulation network filename; Show a cubic metre of earth excavation and filling amount result of calculation.
Adopt three kinds of rule trapezoidal rules, Simpson's rule and Simpson's 3/8 rule to calculate the earthwork when CASS software carries out Earthwork Calculation simultaneously, final calculation result is the mean value of three kinds of regular result of calculations.During calculating, software carry out graticule meshization to the discrete spot elevation data of original ground in the zoning and design surface automatically, should be noted in the discussion above that at this moment the row, column spacing (Δ L) after the graticule meshization is identical, and the approximately little computational accuracy of ranks spacing is high more.
After the discrete spot elevation data of original ground and design surface carry out graticule meshization, except that showing cubic metre of earth excavation and filling amount, show also that i is capable, the natural ground level H of j row point former (i, j), design surface elevation H establishes (i, j), Δ h=H establish (i, j)-former (i of H, j), if Δ h＞0, then this net point is an excavation; If Δ h＜0, then this net point is embankment.Each net point mean square error of height mh is independent uncorrelated, and the middle error mv of Earthwork calculation amount is relevant with the net point mean square error of height, can release error formula in the Earthwork Calculation according to law of propagation of errors, and is as shown in the table.
Error formula in the Earthwork Calculation
By formula as can be seen, the Earthwork Calculation precision is mainly by graticule mesh ranks separation delta L and the decision of gridding point height precision.Wherein Δ L is an input digit when calculating, and controllability is strong, generally selects Δ L=2 rice, 3 meters, 5 meters to get final product.And gridding point height precision is subjected to raw data precision such as factor affecting such as sampling density, sampling point distributions, measuring error and landform classification, is that sampled point is main at interval with sampling density wherein.By verification experimental verification sampling interval and Earthwork Calculation accuracy relation, see the following form thus.
Mesh spacing, sampling interval and Earthwork Calculation accuracy relation table
| Sampling interval (m) | Error in the gridding point height (m) | Mesh spacing (m) | Error (m in the earth volume 3) | The middle relatively error (%) of earth volume |
| ??5 | ??0.013 | ??2 | ??300 | ??0.14 |
| ??10 | ??0.028 | ??3 | ??450 | ??0.21 |
| ??15 | ??0.034 | ??3 | ??457 | ??0.22 |
Result of calculation shows, computational accuracy is far above 3% computational accuracy of national regulation regulation.Can draw thus, sampling interval is generally selected 10 meters, and zone with a varied topography can be encrypted 5 meters.Gridding ranks spacing is selected 2 meters during calculating, to be not more than 5 meters.But it is a lot of to influence two complex-curved Earthwork Calculation precision of space intersection, is difficult to its quantitative examination.As long as require to operate according to sampling theory and related specifications, can think that this kind Earthwork Calculation method can satisfy needs on the engineering.
Claims (7)
1. an accurate measuring method of large-scale irregular earthwork excavated volume is characterized in that it comprises the following steps:
A, the data of pressing the discrete three-dimensional coordinate point of TIN collection original ground and design surface;
B, set up original ground and design surface two sets of data files, utilize CASS software to set up the complex-curved TIN digital elevation model in design space according to the three-dimensional coordinate point of collection in worksite;
C, the earth volume of utilizing the square grid method calculating in the CASS software to excavate.
2. accurate measuring method of large-scale irregular earthwork excavated volume according to claim 1 is characterized in that, described step a is the discrete three-dimensional coordinate point data of gathering original ground and design surface with total powerstation or GPS.
3. accurate measuring method of large-scale irregular earthwork excavated volume according to claim 1 is characterized in that, described step a is according to the feature of the three-dimensional coordinate point on two complex space curved surfaces of certain intervals collection with the accurate response topography and geomorphology.
4. accurate measuring method of large-scale irregular earthwork excavated volume according to claim 3 is characterized in that, any point-to-point transmission of described collection be spaced apart 6-10 rice or 2-5 rice.
5. accurate measuring method of large-scale irregular earthwork excavated volume according to claim 1 is characterized in that, comprises also among the described step b that the interpolation triangulation network sets up triangulation network digital elevation model.
6. accurate measuring method of large-scale irregular earthwork excavated volume according to claim 1 is characterized in that, described step c comprises: in CASS software,
" square grid method Earthwork calculation " order in c1, selection " engineering application " menu bar; Eject " input elevation coordinate data file name " dialog box, select and open the data file of original ground;
C2, selection Earthwork calculation boundary line;
The graticule mesh width is calculated in c3, input, generates the graticule mesh row, column at interval;
C4, the triangulation network file of design surface is selected in prompting then, ejects dialog box and selects and open to generate design surface triangulation network filename;
C5, a demonstration cubic metre of earth excavation and filling amount result of calculation.
7. accurate measuring method of large-scale irregular earthwork excavated volume according to claim 6 is characterized in that, among the described c3, the calculating graticule mesh width value of input is 2 meters, 3 meters or 5 meters.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129712A (en) * | 2011-03-10 | 2011-07-20 | 东南大学 | Triangular net model constructing method based on multi-stratum and three-dimensional quantity of earth work |
| CN102147914A (en) * | 2011-01-31 | 2011-08-10 | 黄桂芝 | Graph/image high-fidelity scaling method adopting rotary matching network |
| CN103196403A (en) * | 2013-03-21 | 2013-07-10 | 中国农业大学 | Earth volume measurement method based on GPS control ground system |
| CN105783810A (en) * | 2016-04-15 | 2016-07-20 | 昆山数字城市信息技术有限公司 | Earthwork quantity measuring method based on UAV photographic technology |
| CN107577903A (en) * | 2017-10-31 | 2018-01-12 | 华电郑州机械设计研究院有限公司 | A kind of method that the earthwork smooth calculating in place is carried out based on AutoCAD |
| CN108038269A (en) * | 2017-11-19 | 2018-05-15 | 上海二十冶建设有限公司 | Mountainous Building group's earthworks calculation concocting method based on BIM |
| CN109523631A (en) * | 2016-06-21 | 2019-03-26 | 武汉瑞得信息工程有限责任公司 | A kind of contour lines creation method and device based on B-spline fitting |
| CN109829195A (en) * | 2018-12-28 | 2019-05-31 | 浙江大境筑科技发展有限公司 | Earthwork calculation method based on BIM |
| CN110287560A (en) * | 2019-06-13 | 2019-09-27 | 水电水利规划设计总院 | A kind of complexity form earth material field excavated volume calculation method |
| CN110516399A (en) * | 2019-09-03 | 2019-11-29 | 贵州正业工程技术投资有限公司 | A kind of Karst depression ball crown type is peeled off earthwork calculation method |
| CN111325840A (en) * | 2020-02-13 | 2020-06-23 | 中铁二院工程集团有限责任公司 | Design method and calculation system of waste slag yard |
| CN111767595A (en) * | 2020-06-12 | 2020-10-13 | 中国二十冶集团有限公司 | Optimized calculation method for earthwork amount and milling amount of reconstructed or expanded road |
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2008
- 2008-11-28 CN CN200810203729A patent/CN101750037A/en active Pending
Cited By (18)
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| CN102147914A (en) * | 2011-01-31 | 2011-08-10 | 黄桂芝 | Graph/image high-fidelity scaling method adopting rotary matching network |
| CN102129712A (en) * | 2011-03-10 | 2011-07-20 | 东南大学 | Triangular net model constructing method based on multi-stratum and three-dimensional quantity of earth work |
| CN103196403A (en) * | 2013-03-21 | 2013-07-10 | 中国农业大学 | Earth volume measurement method based on GPS control ground system |
| CN103196403B (en) * | 2013-03-21 | 2015-11-18 | 中国农业大学 | A kind of earth volume measuring method controlling flat ground system based on GPS |
| CN105783810B (en) * | 2016-04-15 | 2018-06-15 | 昆山数字城市信息技术有限公司 | Engineering earthwork measuring method based on unmanned plane camera work |
| CN105783810A (en) * | 2016-04-15 | 2016-07-20 | 昆山数字城市信息技术有限公司 | Earthwork quantity measuring method based on UAV photographic technology |
| CN109523631A (en) * | 2016-06-21 | 2019-03-26 | 武汉瑞得信息工程有限责任公司 | A kind of contour lines creation method and device based on B-spline fitting |
| CN109523630A (en) * | 2016-06-21 | 2019-03-26 | 武汉瑞得信息工程有限责任公司 | A kind of contour lines creation method and device based on tensile splines interpolation |
| CN109523630B (en) * | 2016-06-21 | 2022-07-29 | 武汉瑞得信息科技有限责任公司 | Contour line generation method and device based on tension spline interpolation |
| CN107577903A (en) * | 2017-10-31 | 2018-01-12 | 华电郑州机械设计研究院有限公司 | A kind of method that the earthwork smooth calculating in place is carried out based on AutoCAD |
| CN108038269A (en) * | 2017-11-19 | 2018-05-15 | 上海二十冶建设有限公司 | Mountainous Building group's earthworks calculation concocting method based on BIM |
| CN108038269B (en) * | 2017-11-19 | 2021-06-01 | 上海二十冶建设有限公司 | Mountain building group earth-rock square balance blending method based on BIM |
| CN109829195A (en) * | 2018-12-28 | 2019-05-31 | 浙江大境筑科技发展有限公司 | Earthwork calculation method based on BIM |
| CN110287560A (en) * | 2019-06-13 | 2019-09-27 | 水电水利规划设计总院 | A kind of complexity form earth material field excavated volume calculation method |
| CN110516399A (en) * | 2019-09-03 | 2019-11-29 | 贵州正业工程技术投资有限公司 | A kind of Karst depression ball crown type is peeled off earthwork calculation method |
| CN110516399B (en) * | 2019-09-03 | 2020-04-14 | 贵州正业工程技术投资有限公司 | Karst depression spherical crown type shelling excavation square amount calculation method |
| CN111325840A (en) * | 2020-02-13 | 2020-06-23 | 中铁二院工程集团有限责任公司 | Design method and calculation system of waste slag yard |
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Open date: 20100623 |