基于三维激光扫描技术的隧道预留变形量优化研究

赵海霖; 仇文革; 戚幸鑫; 万世付; 段东亚; 程云建

doi:10.3973/j.issn.2096-4498.2020.11.009

隧道建设 >

2020 , Vol. 40 >Issue 11: 1607 - 1614

DOI: https://doi.org/10.3973/j.issn.2096-4498.2020.11.009

研究与探索

基于三维激光扫描技术的隧道预留变形量优化研究

赵海霖 ,
仇文革 ,
戚幸鑫 ,
万世付 ,
段东亚 ,
程云建

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（1. 西南交通大学交通隧道工程教育部重点实验室，四川成都 610031；2. 西南石油大学土木工程与测绘学院，四川成都 610500）

赵海霖（1994—），男，四川南充人，西南交通大学建筑与土木工程专业在读硕士，研究方向为隧道信息化。E-mail： 904639145@qq.com。*通信作者：仇文革， E-mail: qiuwen_qw@163.com。

网络出版日期: 2020-12-09

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Optimization of Reserved Tunnel Deformation Based on 3D Laser Scanning Technology

ZHAO Hailin ,
QIU Wenge ,
QI Xingxin ,
WAN Shifu ,
DUAN Dongya ,
CHENG Yunjian

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(1. Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaoyong University, Chengdu 610031, Sichuan, China; 2. School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, Sichuan, China)

Online published: 2020-12-09

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摘要

目前隧道预留变形量的研究大多依赖于监控量测数据基于点的分析，很难得到隧道断面整体的变化情况。为解决传统监测技术单点监测无法满足隧道预留变形量调整的局限性，提出一种利用三维激光扫描技术基于全断面整体分析优化预留变形量的方法。以新安1号隧道为依托，发现试验段最大变形量7.5 cm小于设计预留变形量15 cm，结合质量保证率针对性地提出阶梯状设置预留变形量的优化方法。最终确定在试验段拱顶区域预留变形量设置为7 cm，其余区域预留变形量设置为5 cm。

关键词： 隧道工程; 三维激光扫描; 预留变形量; 质量保证率

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赵海霖 , 仇文革 , 戚幸鑫 , 万世付 , 段东亚 , 程云建 . 基于三维激光扫描技术的隧道预留变形量优化研究[J]. 隧道建设, 2020 , 40(11) : 1607 -1614 . DOI: 10.3973/j.issn.2096-4498.2020.11.009

Abstract

At present, most researches of reserved deformation of tunnels rely on pointbased analysis of monitoring data. Therefore, it is difficult to obtain the overall change of the tunnel crosssection. In order to solve the limitation that traditional single point monitoring technology cannot meet the adjustment requirement of the reserved tunnel deformation, a method of optimizing the reserved deformation by using 3D laser scanning technology based on the whole crosssection analysis is proposed. The applicable results of the method to Xin′ an No. 1 Tunnel show that the maximum deformation of the test section of 7.5 cm is less than the design reserved deformation of 15 cm. An optimization method is proposed based on quality guarantee rate to set the reserved deformation in a stepped shape. It is finally determined that the reserved deformation of the crown area is 7 cm, and that of other areas is 5 cm.

Key words： tunnel engineering; 3D laser scanning technology; reserved deformation; quality guarantee rate

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