Structural plane measuring method based on three-dimensional laser scanning technique

A technology of three-dimensional laser and scanning technology, which is applied in the field of structural surface measurement and structural surface measurement based on three-dimensional laser scanning technology, can solve the problems of long working hours and low efficiency, and achieve the effect of reducing field working time

Inactive Publication Date: 2015-04-01
POWERCHINA CHENGDU ENG
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to propose a structural surface measurement method based on three-dimensional laser scanning technology to solve the problems of long working time and low efficiency in the traditional technology of rock mass structural surface measurement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] The structural surface measurement method based on 3D laser scanning technology in this example includes the following steps:

[0031] 1. Select the investigation window:

[0032] Select a 5m long and 2m high range in the adit as the investigation window.

[0033] 2. Three-dimensional data acquisition:

[0034] (1) Use a 3D laser scanner to scan the investigation window to obtain the point cloud data of the investigation window;

[0035] (2) Use a digital camera to take pictures of the investigation window and obtain a digital photo of the investigation window;

[0036] (3) Overlay the 3D point cloud and digital photos to form a true-color 3D model of the investigation window.

[0037] 3. Trace identification:

[0038] (1) Preliminarily determine the linear or planar structural surface according to the lightness and darkness of the laser point in the laser point cloud;

[0039] (2) Contrasted with digital photos, outline each specific structural surface.

[0040] ...

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Abstract

The invention relates to the structural plane measuring technique in the engineering geological investigation field and discloses a structural plane measuring method based on the three-dimensional laser scanning technique. The structural plane measuring method solves the problems that working time is long and efficiency is low in rock mass structural plane measuring modes in the prior art. Investigation window rock mass surface laser-point clouds are obtained through the three-dimensional laser scanning technique, rock mass surface true color digital photos are obtained through a digital camera, structural planes are recognized through the three-dimensional laser-point clouds and the true color digital photos, the occurrence of the structural planes is worked out, the exposing lines of the structural planes are generated, and the length and persistence ratio of the structural planes and the distance between the structural planes and the like are measured. The method is suitable for rock mass structural plane measuring.

Description

technical field [0001] The invention relates to structural surface measurement technology in the field of engineering geological survey, in particular to a structural surface measurement method based on three-dimensional laser scanning technology. Background technique [0002] The measurement of rock mass structural plane is one of the main tasks of geological field work. The specific survey content includes the number of structural plane groups, occurrence, length, spacing, connectivity, and properties. Currently, the commonly used method is to use a compass and a tape measure to manually Measurement and then digitization, this method takes a long time to work in the field and is inefficient. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a structural surface measurement method based on three-dimensional laser scanning technology, which solves the problems of long working time and low efficiency in the traditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/00
CPCG01C11/00
Inventor 李华
Owner POWERCHINA CHENGDU ENG
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