基于非接触量测技术的隧道围岩变形及分析

山东大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (3): 137-141.

基于非接触量测技术的隧道围岩变形及分析

武科1, 李术才1, 马明月2

1. 山东大学岩土与结构工程研究中心, 山东济南 250061;
2. 山东科技大学土木建筑学院, 山东青岛 266510

收稿日期:2011-04-05 出版日期:2011-06-16 发布日期:2011-04-05
作者简介:武科(1978- ),男,河北枣强人,讲师,博士,主要研究方向为岩土工程、地下工程.Email:wuke@sdu.edu.cn
基金资助:
山东大学自主创新基金自然科学类专项资助项目(2010TS080); 中国博士后科学基金资助项目(200904501211)

Deformation and analyzing of a tunnel country rock
based on non-contact monitoring

WU Ke1, LI Shucai1, MA Mingyue2

1. Geotechnical and Structural Engineering Research Institute, Shandong University, Jinan 250061, China;
2. College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266510, China

Received:2011-04-05 Online:2011-06-16 Published:2011-04-05

摘要/Abstract

摘要：

针对膨胀岩隧道洞口施工围岩变形规律,采用全站仪非接触量测技术,依托云桂铁路(广西)那达2号隧道监控量测工程,通过现场隧道围岩变形监测与数据分析发现隧道围岩净空变化和地表沉降随着开挖时间及仰拱施做之后,隧道围岩净空变化趋于稳定,其变化量逐渐减小;而由于连续降雨,致使膨胀土强度降低,地表产生较大裂缝,致使地表下沉量增大,局部区域出现了滑坡。依据所监测和分析的结果,针对膨胀岩的工程力学特性,制定了锚杆注浆与微型抗滑桩相结合的加固治理措施,从而保证了该隧道安全施工。

关键词: 非接触量测, 隧道工程, 围岩变形, 全站仪

Abstract:

In order to obtain the deformation rule of the construction at the side of opening in an expansive rock tunnel, the noncontact monitoring technology, such as the system comprising a total station, was used to monitor the deformation of 2nd Nada Tunnel on the Yungui Railroad (Guangxi). Though monitoring and analyzing of the deformation, it was obtained that the deformation of convergence and ground surface became stabilized with the increase of time of excavation and after tunnel invert. The deformation was decreased with the time of construction. Because of continuous rainfall, the strength of swelling rock was reduced and the surface produced a big crack, which caused the surface submersion to increase and a local region presented a landslide. According to the results of monitoring and analysis, the control measurements of casualties were established in the view of features of swelling rock. The measurements, such as anchor inject and micro-anti-slide pile, were able to guarantee this tunnel′s constructs safe construction.

Key words: non-contact monitoring, tunnelling engineering, country rock deformation, total station instrument

武科1, 李术才1, 马明月2. 基于非接触量测技术的隧道围岩变形及分析[J]. 山东大学学报(工学版), 2011, 41(3): 137-141.

WU Ke1, LI Shucai1, MA Mingyue2. Deformation and analyzing of a tunnel country rock
based on non-contact monitoring[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2011, 41(3): 137-141.

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