CN104391340A - Hydropower environment side slope dangerous rock body geologic detection method - Google Patents
Hydropower environment side slope dangerous rock body geologic detection method Download PDFInfo
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- CN104391340A CN104391340A CN201410696568.1A CN201410696568A CN104391340A CN 104391340 A CN104391340 A CN 104391340A CN 201410696568 A CN201410696568 A CN 201410696568A CN 104391340 A CN104391340 A CN 104391340A
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Abstract
The invention relates to the field of hydropower construction, in particular to a hydropower environment side slope dangerous rock body geologic detection method which is higher in efficiency and more accurate. The hydropower environment side slope dangerous rock body geologic detection method includes the steps: a, performing three-dimensional laser scanning for an environment side slope dangerous rock body to be constructed to acquire geologic object true color information or point cloud data; b, building a geologic three-dimensional model containing the true color information by the acquired true color information and the point cloud data; c, detecting a dangerous rock body, measuring the geometric dimension of the dangerous rock body and analyzing geologic stability of the dangerous rock body for the geologic three-dimensional model; e, obtaining dangerous rock body geologic detection results. Design and constructors are facilitated, and the method is particularly applicable to engineering application occasions requiring high dangerous rock body detection accuracy.
Description
Technical field
The present invention relates to Hydroelectric Project Construction field, especially a kind of water power environmental slope Dangerous Rock Body geology detection method.
Background technology
Hydroelectric project environmental slope is positioned at outside engineering aperture lines, and side slope is high steep.At present, environmental slope Dangerous Rock Body is conducted a geological survey and mainly relies on geological personnel to approach observation, utilize the instrument such as tape measure, compass to measure, inefficiency.Part Dangerous Rock Body is grown in overhanging cliff, be difficult to close, usually need to hold telescope and carry out distant surveillance, traditional measurement instrument (as transit, total powerstation etc.) is limited to the factors such as distance, also the geometric parameter of Obtaining Accurate Dangerous Rock Body is difficult to, cause Dangerous Rock Body enquiry data untrue, to follow-up geologic assessment, processing scheme design brings a series of difficulty
Summary of the invention
Technical matters to be solved by this invention is to provide the higher and more accurate water power environmental slope Dangerous Rock Body geology detection method of a kind of efficiency.
The technical solution adopted for the present invention to solve the technical problems is: water power environmental slope Dangerous Rock Body geology detection method, comprises the following steps:
A, 3 D laser scanning is carried out to environmental slope Dangerous Rock Body to be onstructed, utilize scanner built-in camera to obtain the true multimedia message of geological object, or utilize the external camera of scanner to utilize a some cloud common point carry out mating and obtain cloud data;
B, by the true multimedia message that obtains and cloud data input computing machine, set up containing the geologic three-dimensional model of true multimedia message;
C, geologic three-dimensional model carried out to Dangerous Rock Body detection, Dangerous Rock Body physical dimension measures, the confirmation in Dangerous Rock Body boundary Control face;
D, the Dangerous Rock Body geology obtained according to above-mentioned steps are recognized information and are carried out that Dangerous Rock Body geology flat sectional drawing is drawn, the computational analysis of Dangerous Rock Body geological stability, and analyze Dangerous Rock Body geological stability;
E, the analysis provided according to above-mentioned dangerous rock block scheme, draw the testing result of Dangerous Rock Body geology.
Further, the scanner described in described step a is tomography scan formula scanner.
Further, step c also comprises the occurrence state to Dangerous Rock Body control structure face, and the confirmation of the connected ratio state in Dangerous Rock Body control structure face.
The invention has the beneficial effects as follows: the application of 3 D laser scanning equipment, the present invention is allowed to have following advantage: one, three-dimensional laser scanning technique directly can obtain the three-dimensional coordinate cloud data of Dangerous Rock Body, its single point precision generally can reach millimeter to centimetre-sized precision, its precision is far above close-shot photography measure technique, therefore, with regard to whole three-dimensional model, precision is higher; Two, hydroelectric project usually needs at rivers opposite bank telemeasurement environmental slope Dangerous Rock Body, close-range photogrammetry is applicable to close-in target within 300m, poor for applicability to remote Dangerous Rock Body, and it is longer based on the three-dimensional laser scanner ranging of pulsed principle, ranging farthest reach 6 kilometers, meet the actual needs of engineering completely; Three, not only " some cloud " figure that three-dimensional laser scanner obtains comprises the three-dimensional coordinate of collection point and the digital document of color attribute, does not need photogrammetric later stage matching and correlation, quick but also be convenient to be transplanted to other system process and use; Four, laser scanner initiatively transmitting illuminant, does not need extraneous light, the light after reflection that receiver is gone out by detection its own transmission, and like this, scanning is not subject to the restriction in light and space, the problem of decipher weak effect when solving photogrammetric insufficient light.Therefore, the Dangerous Rock Body detection mode that the present invention is more traditional has larger technical advantage, facilitates design and workmen greatly, and its test result is also more accurate, is beneficial to carrying out smoothly of next step working procedure.The present invention is especially practically applicable to detect the high engineer applied occasion of precise requirements to Dangerous Rock Body.
Embodiment
Water power environmental slope Dangerous Rock Body geology detection method, is characterized in that, comprise the following steps:
A, 3 D laser scanning is carried out to environmental slope Dangerous Rock Body to be onstructed, utilize scanner built-in camera to obtain the true multimedia message of geological object, or utilize the external camera of scanner to utilize a some cloud common point carry out mating and obtain cloud data;
B, by the true multimedia message that obtains and cloud data input computing machine, set up containing the geologic three-dimensional model of true multimedia message;
C, geologic three-dimensional model carried out to Dangerous Rock Body detection, Dangerous Rock Body physical dimension measures, the confirmation in Dangerous Rock Body boundary Control face;
D, the Dangerous Rock Body geology obtained according to above-mentioned steps are recognized information and are carried out that Dangerous Rock Body geology flat sectional drawing is drawn, the computational analysis of Dangerous Rock Body geological stability, and analyze Dangerous Rock Body geological stability;
E, the analysis provided according to above-mentioned dangerous rock block scheme, draw the testing result of Dangerous Rock Body geology.
Three-dimensional laser scanning technique is the new and high technology that development in recent years is got up, can be complete and rebuild scanning space three-dimensional form in kind accurately, to scanning object surface without the need to carrying out any process, really realizes noncontacting measurement.In traditional measurement instrument, total powerstation, GPS proportion are in the majority, and the data of measurement are two dimensional form.In progressively digitized today, complex space form adopts two-dimensional signal beyond expression of words sometimes, the data that three-dimensional laser scanner is measured at every turn not only comprise the spatial information of X, Y, Z point, also comprise R, G, B colouring information, also have the information of object inverse rate simultaneously.
The field investigation of Dangerous Rock Body is carried out under particular circumstances, for Dangerous Rock Body three-dimensional data obtains, work-yard is working-yard or field side slope, detailed making an on-the-spot survey must be carried out to place before scanning work, the landform, traffic conditions etc. at scene are understood, accomplish to know what's what to the scope of scanning Dangerous Rock Body target, scale, topographic relief, then design according to the website of investigation to scanning, choosing of terrestrial coordinate reference point to be considered, design scanning work website sketch simultaneously.Generally speaking, at the construction field (site) a side slope is scanned, due to reasons such as side slope scope are comparatively large, landform is uneven, carry out single pass to be difficult to cover whole target, therefore diverse location is generally needed repeatedly to scan, rational layout different scanning site location can improve to the splicing precision of the true multimedia message of geological object or later stage cloud data, simultaneously also by considering the situation as far as possible comprehensively reflecting slope table, obtains more terrestrial information.
General, educate because Dangerous Rock Body is multiple in high gradient slope, therefore the scanner described in described step a is preferably as tomography scan formula scanner.In addition, for step c, in order to the test result of geologic three-dimensional model more accurately and, the occurrence state to Dangerous Rock Body control structure face can also be selected, and the confirmation of the connected ratio state in Dangerous Rock Body control structure face, like this in conjunction with information such as Dangerous Rock Body detection, the measurement of Dangerous Rock Body physical dimension, Dangerous Rock Body boundary Control faces, test result more accurately can be obtained.
Claims (3)
1. water power environmental slope Dangerous Rock Body geology detection method, is characterized in that, comprise the following steps:
A, 3 D laser scanning is carried out to environmental slope Dangerous Rock Body to be onstructed, utilize scanner built-in camera to obtain the true multimedia message of geological object, or utilize the external camera of scanner to utilize a some cloud common point carry out mating and obtain cloud data;
B, by the true multimedia message that obtains and cloud data input computing machine, set up containing the geologic three-dimensional model of true multimedia message;
C, geologic three-dimensional model carried out to Dangerous Rock Body detection, Dangerous Rock Body physical dimension measures, the confirmation in Dangerous Rock Body boundary Control face;
D, the Dangerous Rock Body geology obtained according to above-mentioned steps are recognized information and are carried out that Dangerous Rock Body geology flat sectional drawing is drawn, the computational analysis of Dangerous Rock Body geological stability, and analyze Dangerous Rock Body geological stability;
E, the analysis provided according to above-mentioned dangerous rock block scheme, draw the testing result of Dangerous Rock Body geology.
2. water power environmental slope Dangerous Rock Body geology detection method as claimed in claim 1, is characterized in that: the scanner described in described step a is tomography scan formula scanner.
3. water power environmental slope Dangerous Rock Body geology detection method as claimed in claim 1 or 2, is characterized in that: step c also comprises the occurrence state to Dangerous Rock Body control structure face, and the confirmation of the connected ratio state in Dangerous Rock Body control structure face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410696568.1A CN104391340A (en) | 2014-11-26 | 2014-11-26 | Hydropower environment side slope dangerous rock body geologic detection method |
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| CN201410696568.1A CN104391340A (en) | 2014-11-26 | 2014-11-26 | Hydropower environment side slope dangerous rock body geologic detection method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571571A (en) * | 2016-01-26 | 2016-05-11 | 中国科学院水利部成都山地灾害与环境研究所 | Accumulated profile space structure information analysis method based on three-dimensional laser scanning |
| CN107144243A (en) * | 2017-04-19 | 2017-09-08 | 中国电力科学研究院 | A kind of method and system for measuring rock mass discontinuity failure by shear area |
| CN107220964A (en) * | 2017-05-03 | 2017-09-29 | 长安大学 | A kind of linear feature extraction is used for geology Taking stability appraisal procedure |
| CN110298103A (en) * | 2019-06-25 | 2019-10-01 | 中国电建集团成都勘测设计研究院有限公司 | The steep Dangerous Rock Body investigation method of height based on unmanned aerial vehicle onboard three-dimensional laser scanner |
| CN112347901A (en) * | 2020-11-04 | 2021-02-09 | 长江岩土工程总公司（武汉） | Rock mass analysis method based on three-dimensional laser scanning technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571571A (en) * | 2016-01-26 | 2016-05-11 | 中国科学院水利部成都山地灾害与环境研究所 | Accumulated profile space structure information analysis method based on three-dimensional laser scanning |
| CN105571571B (en) * | 2016-01-26 | 2017-11-17 | 中国科学院水利部成都山地灾害与环境研究所 | Accumulation section spatial structural form analysis method based on 3 D laser scanning |
| CN107144243A (en) * | 2017-04-19 | 2017-09-08 | 中国电力科学研究院 | A kind of method and system for measuring rock mass discontinuity failure by shear area |
| CN107220964A (en) * | 2017-05-03 | 2017-09-29 | 长安大学 | A kind of linear feature extraction is used for geology Taking stability appraisal procedure |
| CN110298103A (en) * | 2019-06-25 | 2019-10-01 | 中国电建集团成都勘测设计研究院有限公司 | The steep Dangerous Rock Body investigation method of height based on unmanned aerial vehicle onboard three-dimensional laser scanner |
| CN112347901A (en) * | 2020-11-04 | 2021-02-09 | 长江岩土工程总公司（武汉） | Rock mass analysis method based on three-dimensional laser scanning technology |
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