超前探测中探地雷达应用与结果的处理分析

杨天春; 周勇; 李好

超前探测中探地雷达应用与结果的处理分析

1.
湖南科技大学湖南省普通高等学校土木工程施工过程与质量安全控制重点实验室湘潭 411201;
2.
中南大学信息物理工程学院长沙 410083

基金项目:

湖南省自然科学基金资助项目(06JJ2077)

详细信息

作者简介:
杨天春,主要从事地球物理与岩土工程方面的教学和科研工作.Email:ytc6803@yahoo.com.cn

中图分类号: P631.33
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出版历程
- 收稿日期: 2009-12-02
- 修回日期: 2010-03-11
- 刊出日期: 2010-12-25

USE AND ANALYSIS OF GROUND PENETRATION RADAR FOR FORCASTING GEOLOGICAL CONDITIONS IN HIGHWAY TUNNELING

1.
Hunan College Key Laboratory of the Construction Process,Quality and Safety of Civil Engineering,Hunan University of Science and Technology,Xiangtan 411201;
2.
School of Info-Physics and Geomatics Engineering,Central South University,Changsha 410083

摘要

摘要: 在隧道施工中,由于地质条件的复杂性和勘察工作的局限性,往往造成地质勘查成果与开挖后的情况不一致,这就要求在隧道施工工程中进行超前跟踪探测,确保隧道施工的安全。本文主要介绍SIR-3000探地雷达系统在郴(州)宁(远)高速公路芒头岭隧道超前预报中的应用概况,并采用空间域滤波和希尔伯特变换等方法对探测结果进行处理,根据处理结果对隧道掌子面前方溶洞、裂隙等地质情况进行预测。隧道后期的开挖情况证明了雷达预测结果的正确性,取得了较好的预测效果,同时也说明了采用空间滤波、希尔伯特变换等处理方法对改进实测数据质量方面的有用性。
- 探地雷达 /
- 超前探测 /
- 希尔伯特变换 /
- 空间滤波 /
- 公路隧道
Abstract: Because of the complexity of geological conditions of tunnel surrounding rock and the limitation of site investigation before tunnel construction,the geological prospecting results usually do not agree with the real conditions. Consequently,advanced detection methods must be adopted in tunnel engineering in order to insure the construction safety. The paper presents the use of the ground penetration radar SIR-3000 system in Mangtouling tunnel along the Chenzhou-Ningyuan express highway. The data was processed with the spatial filter and Hilbert transform. Karst cave and the cranny were forecasted in the front of tunnel face by GPR results. The excavation result testified the validity of the forecasted results. A better forecast effect was obtained. The result illuminates the serviceability of spatial filtering and Hilbert transform for GPR data processing.
- GPR /
- Ground penetration radar /
- Forecasting /
- Hilbert transform /
- Spatial filtering

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参考文献(1)

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