Compensation excavation method control for large deformation disaster of mountain soft rock tunnel

In recent years, the mine tunneling method and the new Austrian tunneling method have been considered the main theories of tunneling approaches in China. It is difficult for the traditional technique to overcome the large deformation problems imposed by complex geological conditions of mountain soft...

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Bibliographic Details
Published inInternational journal of mining science and technology Vol. 32; no. 5; pp. 951 - 963
Main Authors He, Manchao, Sui, Qiru, Li, Mengnan, Wang, Zhijiao, Tao, Zhigang
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2022
Elsevier
Subjects
Compensation excavation method
Excavation method
Large deformation
Soft rock
Tunnel engineering
Tunnel engineering
Soft rock
Excavation method
Large deformation
Compensation excavation method
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Summary:In recent years, the mine tunneling method and the new Austrian tunneling method have been considered the main theories of tunneling approaches in China. It is difficult for the traditional technique to overcome the large deformation problems imposed by complex geological conditions of mountain soft rock tunneling. Hence, the compensation excavation method has been proposed to solve this issue under the consideration that all damage in tunneling originates from the excavation. It uses supportive strategies to counteract the excavation effects successfully. This paper provides an overview of the fundamental ideas of the compensation excavation method, methodologies, and field applications. The scientific validity and feasibility of the compensation excavation method were investigated through the practical engineering study of the Muzhailing and Changning tunnels.
ISSN:2095-2686
DOI:10.1016/j.ijmst.2022.08.004