| Issue |
E3S Web Conf.
Volume 283, 2021
2021 3rd International Conference on Civil, Architecture and Urban Engineering (ICCAUE 2021)
|
|
|---|---|---|
| Article Number | 01013 | |
| Number of page(s) | 5 | |
| Section | Research on Civil Engineering and Geotechnical Hydrological Structure | |
| DOI | https://doi.org/10.1051/e3sconf/202128301013 | |
| Published online | 07 July 2021 | |
Application of comprehensive advanced geological prediction technology in Da-puling tunnel
1 CCCC First Harbor Eng. Co., Ltd.
2 Tianjin Port Engineering Institute Co., Ltd. of CCCC First Harbor Eng. Co., Ltd.
3 Key Laboratory of Port Geotechnical Engineering of the Ministry of Communication Tianjin, China
* Corresponding author's e-mail: liuhewen@tpei.com.cn
For the Da-puling tunnel of Puqing Expressway in Guangxi, the advanced geological prediction is carried out by combining TSP long-distance forecast method with short distance geological radar method. This paper describes the principle of seismic wave propagation in elastic medium, as well as the key points of data processing and analysis, some requirements that should be paid attention to the field test and scientific way of image interpretation put forward to improve the accuracy of prediction; When TSP is deployed, it should be sharp angle with potential joint surface. P-wave reacts surrounding rock properties, the shear wave is closely related to the transverse skeleton of medium. In data interpretation, it is necessary to focus on the analysis of the characteristics of P-wave and S-wave, weakening Poisson’s ratio and Young’s modulus. TSP and GPR can achieve the mutual complement and improve the detection accuracy.
© The Authors, published by EDP Sciences, 2021
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