CN110132172A - The method for obtaining coal-mining subsidence earth's surface fracture pattern based on 3 D laser scanning - Google Patents

The method for obtaining coal-mining subsidence earth's surface fracture pattern based on 3 D laser scanning Download PDF

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Publication number
CN110132172A
CN110132172A CN201910486054.6A CN201910486054A CN110132172A CN 110132172 A CN110132172 A CN 110132172A CN 201910486054 A CN201910486054 A CN 201910486054A CN 110132172 A CN110132172 A CN 110132172A
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CN
China
Prior art keywords
measured
gypsum body
ground fissure
calcium plaster
dimensional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910486054.6A
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Chinese (zh)
Inventor
郭旺生
张健
苗彦平
杨帆
毕银丽
张建国
贺晓忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenmu Zhangjiamao Coal Mining Co Ltd Of Shaanxi Coal And Chemical Industry Group Co ltd
China University of Mining and Technology Beijing CUMTB
Original Assignee
Shenmu Zhangjiamao Coal Mining Co Ltd Of Shaanxi Coal And Chemical Industry Group Co ltd
China University of Mining and Technology Beijing CUMTB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenmu Zhangjiamao Coal Mining Co Ltd Of Shaanxi Coal And Chemical Industry Group Co ltd, China University of Mining and Technology Beijing CUMTB filed Critical Shenmu Zhangjiamao Coal Mining Co Ltd Of Shaanxi Coal And Chemical Industry Group Co ltd
Priority to CN201910486054.6A priority Critical patent/CN110132172A/en
Publication of CN110132172A publication Critical patent/CN110132172A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/02Measuring arrangements characterised by the use of optical means for measuring length, width or thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/14Measuring arrangements characterised by the use of optical means for measuring distance or clearance between spaced objects or spaced apertures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/22Measuring arrangements characterised by the use of optical means for measuring depth
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/24Measuring arrangements characterised by the use of optical means for measuring contours or curvatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/28Measuring arrangements characterised by the use of optical means for measuring areas

Abstract

The method that coal-mining subsidence earth's surface splits whole slit state is obtained based on 3 D laser scanning the present invention relates to a kind of, it is characterised in that including the following contents: S1: modulation calcium plaster;S2: the calcium plaster modulated is filled into ground fissure to be measured, and calcium plaster is made to fill up entire ground fissure to be measured;S3: it solidifies in ground fissure to be measured to calcium plaster, when the calcium plaster being poured in ground fissure to be measured is solidified as gypsum body, gypsum body is completely excavated;S4: utilizing three-dimensional laser scanner, and the gypsum body excavated out from ground fissure to be measured is carried out 3-D scanning, obtains the three dimensional point cloud of gypsum body;S5: the three dimensional point cloud of gypsum body is imported into Point Cloud Data from Three Dimension Laser Scanning processing software and models to obtain gypsum body three-dimensional models data, by analyzing gypsum body three-dimensional models data, obtains ground fissure three-dimensional configuration information to be measured.

Description

The method for obtaining coal-mining subsidence earth's surface fracture pattern based on 3 D laser scanning
Technical field
The present invention relates to a kind of methods for obtaining coal-mining subsidence earth's surface fracture pattern based on 3 D laser scanning, are related to adopting Coal depression ground land reclamation technical field.
Background technique
Coal pit mining can generate subsidence, be easy to induce surface cracks development, destroy soil, vegetation, building Deng.Influence for Quantitative study ground fissure to environment is not only needed in field study ground fissure, it is also desirable to use indoors Manual simulation's method simulates Ground Fractures ' Development.But the prior art, since ground fissure depth is big, width is narrow, in irregular shape Morphological Features cause ground fissure form to be difficult to completely obtain.
Conventional method measures roughly earth surface cracks width, length, depth only by steel ruler.Existing steel ruler measures method not Only low precision, and the three-dimensional space model information in crack can not be obtained, it is unable to satisfy researcher's Quantitative study ground fissure Demand.
Summary of the invention
It is split in view of the above-mentioned problems, obtaining coal-mining subsidence earth's surface based on 3 D laser scanning the object of the present invention is to provide one kind The method of slit state can accurately obtain the shape informations such as depth and width, volume, the surface area including ground fissure.
To achieve the above object, the present invention takes following technical scheme: one kind, which obtains to mine based on 3 D laser scanning, sinks The method that sunken earth's surface splits whole slit state, including the following contents:
S1: modulation calcium plaster;
S2: the calcium plaster modulated is filled into ground fissure to be measured, and calcium plaster is made to fill up entire ground fissure to be measured;
S3: solidifying in ground fissure to be measured to calcium plaster, when the calcium plaster being poured in ground fissure to be measured is solidified as gypsum When body, gypsum body is completely excavated;
S4: utilizing three-dimensional laser scanner, and the gypsum body excavated out from ground fissure to be measured is carried out 3-D scanning, obtains stone The three dimensional point cloud of lotion;
S5: the three dimensional point cloud of gypsum body is imported into Point Cloud Data from Three Dimension Laser Scanning processing software and models to obtain gypsum Body three-dimensional models data obtain ground fissure three-dimensional configuration information to be measured by analyzing gypsum body three-dimensional models data.
Further, the detailed process of calcium plaster is modulated are as follows: gradually add water and stir to form calcium plaster using land plaster, gypsum Slurry is gradually diluted to flow-like by thick, wherein land plaster/water proportion is about are as follows: 100g/50~100g.
Further, calcium plaster is solidified as time about 2~7 days of gypsum body, according to flaw size size and dry weather Situation is different, different the time required to solidification.
Further, the concrete operations that gypsum body completely excavates are as follows: since earth's surface at ground fissure to be measured, removing is native layer by layer Gypsum body is completely excavated from soil, gypsum body is avoided to be destroyed by earth.
Further, it is characterised in that Point Cloud Data from Three Dimension Laser Scanning processing software uses Geomagic software.
Further, ground fissure three-dimensional configuration information to be measured includes the depth and width, volume, surface area of ground fissure to be measured Information.
Based on the above-mentioned technical proposal, the present invention at least has following technical effect that the present invention by ground fissure to be measured Solidifiable calcium plaster is perfused, is excavated after waiting calcium plasters to solidify, scans gypsum body using three-dimensional laser scanning technique, obtains Take the three-dimensional space shape of ground fissure.The available depth and width including ground fissure of the method for the present invention, volume, surface area etc. Shape information is of great significance to the correlative study work for carrying out crack.
Detailed description of the invention
Fig. 1 is the three-dimensional configuration modelling effect figure of gypsum body in the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The method provided by the invention that coal-mining subsidence earth's surface fracture pattern is obtained based on 3 D laser scanning, including content Are as follows:
S1: modulation calcium plaster
The present embodiment use calcium plaster tempered by land plaster, specific modulated process are as follows: using land plaster by It gradually adds water and stirs to form calcium plaster, calcium plaster is gradually diluted by thick, is diluted to subject to flow-like, wherein land plaster/water Proportion about are as follows: 100g/50~100g;
S2: the calcium plaster modulated is filled into ground fissure to be measured, and calcium plaster is made to fill up entire ground fissure to be measured.
S3: it is solidified in ground fissure to be measured to calcium plaster, the calcium plaster being poured in ground fissure to be measured is solidified as gypsum body. Since earth's surface at ground fissure to be measured, soil is removed layer by layer, and gypsum body is completely excavated to (the excavation that the present invention defines from soil Gypsum body is to be excavated soil layer by layer by destroying ground fissure to be measured, guarantees that gypsum body completely excavates), it should be noted that excavating stone Lotion avoids gypsum body from being destroyed as far as possible, wherein calcium plaster is solidified as time about 2~7 days of gypsum body, big according to flaw size Small and dry weather situation is different, different the time required to solidification, the general partially solidified drying for waiting gypsum body to expose earth's surface (hand pressing is indeformable) afterwards, then delay 1-2 days and excavate, it is ensured that set strength.
S4: utilizing three-dimensional laser scanner, and the gypsum body taken out from ground fissure to be measured is carried out 3-D scanning, obtains gypsum The three dimensional point cloud of body.
S5: the three dimensional point cloud of gypsum body is imported into Point Cloud Data from Three Dimension Laser Scanning processing software and models to obtain gypsum Body three-dimensional models data obtain ground fissure three-dimensional configuration information to be measured by analyzing gypsum body Model data, wherein to Geodetic crack three-dimensional configuration information includes the information such as the depth and width, volume, surface area of ground fissure.
Below by specific embodiment, the present invention will be described in detail obtains coal-mining subsidence earth's surface based on 3 D laser scanning and split The implementation process of the method for slit state, material used in the present embodiment etc., unless otherwise specified, commercially It arrives.
The present embodiment simulates a ground fissure indoors, obtains ground fissure three-dimensional configuration using the method for the present invention, specifically Process are as follows:
1, ground fissure is chosen
The present embodiment uses ground fissure simulator, and simulation generates a ground fissure.Soil where crack is sandy soil, bulk density For 1.5g/cm3, measuring its depth by steel ruler is 159mm, and width is about 72mm.
2, it modulates calcium plaster and treats geodetic crack and poured
It chooses proper amount of gypsum powder to be put into basin, tap water is added when stirring, is gradually diluted to fluid state by sticky to calcium plaster , the calcium plaster modulated is carefully filled into ground fissure, is filled to filling up whole crack, until concordant with earth's surface.
3, gypsum body is excavated
It waits two days later, gypsum body is slowly carefully excavated, protects the gypsum bodily form as far as possible by gypsum body coagulation forming State prevents from destroying.
4,3 D laser scanning gypsum body
Gypsum body is scanned to obtain stone using three-dimensional laser scanner (model C REAFORM HANDY SCAN 700) The three dimensional point cloud of lotion.
5, data are analyzed
In Geomagic software, the three dimensional point cloud of gypsum body is removed dryness, the conventional modelling operability such as encapsulation.? To the three-dimensional configuration model of gypsum body, as shown in Figure 1, being analyzed by the three-dimensional configuration model to gypsum body, indirect gain Width, depth, volume, the surface area in crack, are shown in Table 1.
1 fracture pattern parameter of table
As can be known from Table 1, there is preferable precision using the fracture pattern parameter that the method for the present invention obtains.In addition, this hair Bright method also successfully obtains crevice volume and surface area, is another big advantage that method is measured compared to steel ruler.Side of the present invention Method has certain application prospect in the ecological management research field of mining collapse area.
Finally it should be noted that: the above examples are only used to illustrate the technical scheme of the present invention rather than to its protection scope Limitation, although the application is described in detail referring to above-described embodiment, those of ordinary skill in the art should Understand: after those skilled in the art read the application, still can to the specific embodiment of application carry out it is various change, modification or Person's equivalent replacement, but these changes, modification or equivalent replacement, are applying within pending claims.

Claims (6)

1. a kind of obtain the method that coal-mining subsidence earth's surface splits whole slit state based on 3 D laser scanning, it is characterised in that including following Content:
S1: modulation calcium plaster;
S2: the calcium plaster modulated is filled into ground fissure to be measured, and calcium plaster is made to fill up entire ground fissure to be measured;
S3: solidifying in ground fissure to be measured to calcium plaster, when the calcium plaster being poured in ground fissure to be measured is solidified as gypsum body, Gypsum body is completely excavated;
S4: utilizing three-dimensional laser scanner, and the gypsum body excavated out from ground fissure to be measured is carried out 3-D scanning, obtains gypsum body Three dimensional point cloud;
S5: the three dimensional point cloud of gypsum body is imported into Point Cloud Data from Three Dimension Laser Scanning processing software and models to obtain gypsum body three Dimension module data obtain ground fissure three-dimensional configuration information to be measured by analyzing gypsum body three-dimensional models data.
2. the method according to claim 1, wherein modulation calcium plaster detailed process are as follows: using land plaster by It gradually adds water and stirs to form calcium plaster, calcium plaster is gradually diluted to flow-like by thick, wherein land plaster/water proportion is about Are as follows: 100g/50~100g.
3. the method according to claim 1, wherein calcium plaster is solidified as time about 2~7 days of gypsum body, root It is different according to flaw size size and dry weather situation, it is different the time required to solidification.
4. described in any item methods according to claim 1~3, which is characterized in that the concrete operations that gypsum body completely excavates are as follows: Since earth's surface at ground fissure to be measured, soil is removed layer by layer, and gypsum body is completely excavated from soil, gypsum body is avoided to be broken It is bad.
5. described in any item methods according to claim 1~3, it is characterised in that Point Cloud Data from Three Dimension Laser Scanning processing software Using Geomagic software.
6. described in any item methods according to claim 1~3, which is characterized in that ground fissure three-dimensional configuration information to be measured includes The depth and width of ground fissure to be measured, volume, surface area information.
CN201910486054.6A 2019-06-05 2019-06-05 The method for obtaining coal-mining subsidence earth's surface fracture pattern based on 3 D laser scanning Pending CN110132172A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000002523A (en) * 1998-06-18 2000-01-07 Ohbayashi Corp Crack measuring method for structure surface
CN101255696A (en) * 2008-04-14 2008-09-03 河南国基建设集团有限公司 PHC pipe-pile pile-anchor combined support water stop construction method
CN104267449A (en) * 2014-09-15 2015-01-07 中国神华能源股份有限公司 Method for detecting coal mining earth surface crack patterns
CN109556524A (en) * 2018-12-21 2019-04-02 中国矿业大学 Fracture width based on Fiber Bragg Grating technology monitors system and method
CN109696674A (en) * 2019-02-14 2019-04-30 中国矿业大学(北京) A method of ground fissure form is obtained based on Ground Penetrating Radar

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000002523A (en) * 1998-06-18 2000-01-07 Ohbayashi Corp Crack measuring method for structure surface
CN101255696A (en) * 2008-04-14 2008-09-03 河南国基建设集团有限公司 PHC pipe-pile pile-anchor combined support water stop construction method
CN104267449A (en) * 2014-09-15 2015-01-07 中国神华能源股份有限公司 Method for detecting coal mining earth surface crack patterns
CN109556524A (en) * 2018-12-21 2019-04-02 中国矿业大学 Fracture width based on Fiber Bragg Grating technology monitors system and method
CN109696674A (en) * 2019-02-14 2019-04-30 中国矿业大学(北京) A method of ground fissure form is obtained based on Ground Penetrating Radar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李亮等: "小波分析在开采沉陷区地表裂缝信息提取的应用", 《测绘科学》 *

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Application publication date: 20190816

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