WO2021103433A1 - Method for tunnel measurement and control on basis of combination of 3d laser scanner and bim - Google Patents

Method for tunnel measurement and control on basis of combination of 3d laser scanner and bim Download PDF

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WO2021103433A1
WO2021103433A1 PCT/CN2020/090166 CN2020090166W WO2021103433A1 WO 2021103433 A1 WO2021103433 A1 WO 2021103433A1 CN 2020090166 W CN2020090166 W CN 2020090166W WO 2021103433 A1 WO2021103433 A1 WO 2021103433A1
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point cloud
tunnel
control
bim
laser scanner
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PCT/CN2020/090166
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French (fr)
Chinese (zh)
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闫煜东
李汉愿
李敏
张鹏
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中铁十八局集团有限公司
中铁十八局集团第五工程有限公司
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C7/00—Tracing profiles
    • G01C7/06—Tracing profiles of cavities, e.g. tunnels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/05—Geographic models

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  • the invention relates to a tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM.
  • the use of a phased 3D laser scanner combined with BIM technology can achieve high-precision and high-efficiency tunnel measurement and control, which makes up for the shortcomings of traditional methods, solves the problem of tunnel measurement and control, and realizes tunnel super Measurement and control effects such as under-excavation, thickness of secondary lining, structural deviation, etc.
  • the purpose of the present invention is to overcome the shortcomings in the prior art, and propose a tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM, which solves the various problems of the traditional tunnel measurement and control method, and realizes the over-under-excavation and secondary lining of the tunnel. Efficient and accurate measurement and control of thickness and structural deviation.
  • the present invention is based on the tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM, including the following steps:
  • Step 1 Scan the inside of the tunnel in three-dimensional point cloud at each stage to obtain point cloud data
  • Step 2 Use professional point cloud software to splice, denoise, and color the point cloud data to obtain the optimized point cloud data model at each stage;
  • the third step use BIM parametric modeling software to establish a tunnel structure model
  • the fourth step Import the point cloud data model and the tunnel structure model into a third-party visualization software for comparison and analysis, and at the same time, realize monitoring and advance pre-control through cross-sectional analysis.
  • a phased 3D laser scanner is used to scan the 3D point cloud.
  • the professional point cloud software mentioned in the second step uses reverse modeling software.
  • the invention utilizes the combination of three-dimensional laser scanner and BIM technology to carry out comparative analysis of reverse modeling and forward modeling, realizes high-precision and high-efficiency tunnel measurement and control, makes up for the shortcomings of traditional methods, and solves the problems of traditional tunnel measurement and control methods.
  • Various problems have achieved the monitoring and control effects of tunnel over-under-excavation, secondary lining thickness, and structural deviation.
  • the invention overcomes the shortcomings of the existing measurement and control methods in tunnel construction, such as small amount of collected data, low accuracy, slow efficiency, inconvenient operation, large limitations, etc., and realizes the high efficiency of tunnel over-under-excavation, secondary lining thickness, structural deviation, etc. Accurate measurement and control.
  • Fig. 1 is a flow chart of the tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM of the present invention.
  • the present invention is based on a tunnel measurement and control method based on a combination of a three-dimensional laser scanner and BIM.
  • the specific implementation process is as follows:
  • the first step before the blasting, after the initial support, after the secondary lining, etc., scan the three-dimensional point cloud inside the tunnel to obtain the point cloud data.
  • phased three-dimensional laser scanner needs to be selected here, which is more accurate than other methods.
  • the phased three-dimensional laser scanner is used for segmented measurement, and the target ball is set at the splicing point to reduce the measurement deviation.
  • the phase-type 3D laser scanner is equipped with a true color camera, which can restore the original appearance of the tunnel to the greatest extent in the post-processing.
  • Step 2 Use professional point cloud software to process the point cloud data such as splicing, denoising, coloring, etc., to obtain the optimized point cloud data model at each stage.
  • professional point cloud software uses reverse modeling software, such as Scene.
  • the third step use BIM parametric modeling software such as Dynamo to quickly and accurately establish the tunnel structure model.
  • Step 4 Import the point cloud data model and the tunnel structure model into a third-party visualization software for comparison and analysis, mark over-under-excavation locations, structural deviation locations, etc., and realize monitoring and advance pre-control through cross-sectional analysis, that is, to achieve Check the tunnel over-under-excavation, the thickness of the secondary lining, the structural deviation, etc.

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Abstract

A method for tunnel measurement and control on the basis of a combination of a 3D laser scanner and BIM: performing 3D point cloud scanning on the inside of a tunnel at each stage to obtain point cloud data (S1); using professional point cloud software to splice, denoise, and color the point cloud data to obtain a point cloud data model optimized at each stage (S2); using BIM parametric modeling software to build a tunnel structure model (S3); and importing the point cloud data model and the tunnel structure model into third-party visualization software for comparison and analysis, and at the same time, achieving monitoring and advance pre-control by means of cross-section analysis (S4). Therefore, various problems of traditional tunnel measurement and control manners are solved, and the efficient and accurate measurement and control of tunnel over and under excavation, secondary lining thickness, structural deviation etc. is achieved.

Description

一种基于三维激光扫描仪与BIM结合的隧道测控方法A tunnel measurement and control method based on the combination of three-dimensional laser scanner and BIM 技术领域Technical field
本发明涉及一种，更具体的说，是涉及一种基于三维激光扫描仪与BIM结合的隧道测控方法。The invention relates to a tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM.
背景技术Background technique
目前，在隧道施工中，随着行业信息化技术的不断发展，高精度检测、预控、施工已成为趋势。使用传统方法：a雷达无损检测方法，对隧道拱顶等位置较高部位测量困难，且采集数据量小，精度不高，效率低，操作不便；b断面仪来检测施工偏差的方法，虽效果相对提高，但高程和平面精度均难以控制，且仍效率缓慢，局限性大。综合上述情况及隧道施工的特点，选用相位式三维激光扫描仪并结合BIM技术，可实现高精度、高效率的隧道测控，弥补了传统方法的不足，解决了隧道测控的难题，实现了隧道超欠挖、二衬厚度、结构偏差等测控效果。At present, in tunnel construction, with the continuous development of industry information technology, high-precision detection, pre-control, and construction have become a trend. Use traditional methods: a. Radar nondestructive detection method, difficult to measure higher positions such as the tunnel vault, and the amount of collected data is small, the accuracy is not high, the efficiency is low, and the operation is inconvenient; b. The method of section meter to detect construction deviation, although effective Relatively improved, but the elevation and plane accuracy are difficult to control, and the efficiency is still slow, and the limitations are large. Based on the above situation and the characteristics of tunnel construction, the use of a phased 3D laser scanner combined with BIM technology can achieve high-precision and high-efficiency tunnel measurement and control, which makes up for the shortcomings of traditional methods, solves the problem of tunnel measurement and control, and realizes tunnel super Measurement and control effects such as under-excavation, thickness of secondary lining, structural deviation, etc.
发明内容Summary of the invention
本发明的目的是为了克服现有技术中的不足，提出一种基于三维激光扫描仪与BIM结合的隧道测控方法，解决了隧道传统测控方式的种种难题，实现了对隧道超欠挖、二衬厚度、结构偏差等高效精准的测控。The purpose of the present invention is to overcome the shortcomings in the prior art, and propose a tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM, which solves the various problems of the traditional tunnel measurement and control method, and realizes the over-under-excavation and secondary lining of the tunnel. Efficient and accurate measurement and control of thickness and structural deviation.
本发明的目的是通过以下技术方案实现的。The purpose of the present invention is achieved through the following technical solutions.
本发明基于三维激光扫描仪与BIM结合的隧道测控方法，包括以下步骤：The present invention is based on the tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM, including the following steps:
第一步：在各个阶段分别对隧道内部进行三维点云扫描，得到点云数据；Step 1: Scan the inside of the tunnel in three-dimensional point cloud at each stage to obtain point cloud data;
第二步：利用专业点云软件将点云数据进行拼接、去噪、着色处理，得到各个阶段优化后的点云数据模型；Step 2: Use professional point cloud software to splice, denoise, and color the point cloud data to obtain the optimized point cloud data model at each stage;
第三步：利用BIM参数化建模软件，建立隧道结构模型；The third step: use BIM parametric modeling software to establish a tunnel structure model;
第四步：将点云数据模型、隧道结构模型导入第三方可视化软件进行比对分析，同时通过断面分析，实现监测及超前预控。The fourth step: Import the point cloud data model and the tunnel structure model into a third-party visualization software for comparison and analysis, and at the same time, realize monitoring and advance pre-control through cross-sectional analysis.
第一步中采用相位式三维激光扫描仪进行三维点云扫描。In the first step, a phased 3D laser scanner is used to scan the 3D point cloud.
第二步中所述专业点云软件采用逆向建模软件。The professional point cloud software mentioned in the second step uses reverse modeling software.
与现有技术相比，本发明的技术方案所带来的有益效果是：Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:
本发明利用三维激光扫描仪与BIM技术结合的方式，进行逆向建模与正向建模对比分析，实现高精度、高效率的隧道测控，弥补了传统方法的不足，解决了隧道传统测控方式的种种难题，实现了隧道超欠挖、二衬厚度、结构偏差等测控效果。The invention utilizes the combination of three-dimensional laser scanner and BIM technology to carry out comparative analysis of reverse modeling and forward modeling, realizes high-precision and high-efficiency tunnel measurement and control, makes up for the shortcomings of traditional methods, and solves the problems of traditional tunnel measurement and control methods. Various problems have achieved the monitoring and control effects of tunnel over-under-excavation, secondary lining thickness, and structural deviation.
本发明攻克了隧道施工中现有测控方式中采集数据量小、精度不高、效率慢、操作不便、局限性大等种种弊端，实现了对隧道超欠挖、二衬厚度、结构偏差等高效精准的测控。The invention overcomes the shortcomings of the existing measurement and control methods in tunnel construction, such as small amount of collected data, low accuracy, slow efficiency, inconvenient operation, large limitations, etc., and realizes the high efficiency of tunnel over-under-excavation, secondary lining thickness, structural deviation, etc. Accurate measurement and control.
附图说明Description of the drawings
图1是本发明基于三维激光扫描仪与BIM结合的隧道测控方法流程图。Fig. 1 is a flow chart of the tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM of the present invention.
具体实施方式Detailed ways
为了使本发明的测控流程方法及优点更加清楚，下面以具体实施方式，对本发明进行进一步详细说明。此处所描述的具体实施方式仅用于解释本发明，并不用于限定本发明。In order to make the measurement and control process method and advantages of the present invention clearer, the present invention will be further described in detail in the following specific embodiments. The specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.
如图1所示，本发明基于三维激光扫描仪与BIM结合的隧道测控方法，具体实现过程如下：As shown in Figure 1, the present invention is based on a tunnel measurement and control method based on a combination of a three-dimensional laser scanner and BIM. The specific implementation process is as follows:
第一步：在***前、初次支护后、二次衬砌后等各个阶段，分别对隧道内部进行三维点云扫描，得到点云数据。The first step: before the blasting, after the initial support, after the secondary lining, etc., scan the three-dimensional point cloud inside the tunnel to obtain the point cloud data.
进一步，在测量前，需勘测脚架和参考控制点，同时根据隧道施工特点，此处需选择相位式三维激光扫描仪，较其他方法精度高。利用相位式三维激光扫描仪分段测量，在拼接处设置标靶球，以降低测量偏差。同时相位式三维激光扫描仪带有真彩色相机，可在后期处理时最大程度还原隧道原貌。Furthermore, before the measurement, the tripod and reference control points need to be surveyed. At the same time, according to the characteristics of the tunnel construction, a phased three-dimensional laser scanner needs to be selected here, which is more accurate than other methods. The phased three-dimensional laser scanner is used for segmented measurement, and the target ball is set at the splicing point to reduce the measurement deviation. At the same time, the phase-type 3D laser scanner is equipped with a true color camera, which can restore the original appearance of the tunnel to the greatest extent in the post-processing.
第二步：利用专业点云软件将点云数据进行拼接、去噪、着色等处理，得到各个阶段优化后的点云数据模型。其中，专业点云软件采用逆向建模软件，如Scene等。Step 2: Use professional point cloud software to process the point cloud data such as splicing, denoising, coloring, etc., to obtain the optimized point cloud data model at each stage. Among them, professional point cloud software uses reverse modeling software, such as Scene.
第三步：利用BIM参数化建模软件如Dynamo等，快速精准建立隧道结构模型。The third step: use BIM parametric modeling software such as Dynamo to quickly and accurately establish the tunnel structure model.
第四步：将点云数据模型、隧道结构模型导入第三方可视化软件进行比对分析，标记超欠挖位置、结构偏差位置等，同时可通过断面分析，实现监测及超前 预控，即实现对隧道超欠挖、二衬厚度、结构偏差的复核等。Step 4: Import the point cloud data model and the tunnel structure model into a third-party visualization software for comparison and analysis, mark over-under-excavation locations, structural deviation locations, etc., and realize monitoring and advance pre-control through cross-sectional analysis, that is, to achieve Check the tunnel over-under-excavation, the thickness of the secondary lining, the structural deviation, etc.
尽管上面结合附图对本发明的功能及工作过程进行了描述，但本发明并不局限于上述的具体功能和工作过程，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可以做出很多形式，这些均属于本发明的保护之内。Although the function and working process of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific functions and working processes described above. The specific embodiments described above are merely illustrative and not restrictive. Under the enlightenment of the present invention, those of ordinary skill can make many forms without departing from the purpose of the present invention and the protection scope of the claims, and these are all within the protection of the present invention.

Claims (3)

  1. 一种基于三维激光扫描仪与BIM结合的隧道测控方法，其特征在于，包括以下步骤：A tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM is characterized in that it comprises the following steps:
    第一步：在各个阶段分别对隧道内部进行三维点云扫描，得到点云数据；Step 1: Scan the inside of the tunnel in three-dimensional point cloud at each stage to obtain point cloud data;
    第二步：利用专业点云软件将点云数据进行拼接、去噪、着色处理，得到各个阶段优化后的点云数据模型；Step 2: Use professional point cloud software to splice, denoise, and color the point cloud data to obtain the optimized point cloud data model at each stage;
    第三步：利用BIM参数化建模软件，建立隧道结构模型；The third step: use BIM parametric modeling software to establish a tunnel structure model;
    第四步：将点云数据模型、隧道结构模型导入第三方可视化软件进行比对分析，同时通过断面分析，实现监测及超前预控。The fourth step: Import the point cloud data model and the tunnel structure model into a third-party visualization software for comparison and analysis, and at the same time, realize monitoring and advance pre-control through cross-sectional analysis.
  2. 根据权利要求1所述的基于三维激光扫描仪与BIM结合的隧道测控方法，其特征在于，第一步中采用相位式三维激光扫描仪进行三维点云扫描。The tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM according to claim 1, characterized in that, in the first step, a phased three-dimensional laser scanner is used to scan the three-dimensional point cloud.
  3. 根据权利要求1所述的基于三维激光扫描仪与BIM结合的隧道测控方法，其特征在于，第二步中所述专业点云软件采用逆向建模软件。The tunnel measurement and control method based on the combination of a three-dimensional laser scanner and BIM according to claim 1, wherein the professional point cloud software in the second step adopts reverse modeling software.
PCT/CN2020/090166 2019-11-28 2020-05-14 Method for tunnel measurement and control on basis of combination of 3d laser scanner and bim WO2021103433A1 (en)

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