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

Manchao He; Qiru Sui; Mengnan Li; Zhijiao Wang; Zhigang Tao

International Journal of Mining Science and Technology (Sep 2022)

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

Manchao He,
Qiru Sui,
Mengnan Li,
Zhijiao Wang,
Zhigang Tao

Affiliations

Manchao He: State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China
Qiru Sui: State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China; School of Mechanics and Civil Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China
Mengnan Li: State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China; School of Mechanics and Civil Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China
Zhijiao Wang: Gansu Changda Highway Co., Ltd, Lanzhou 730050, China
Zhigang Tao: State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China; School of Mechanics and Civil Engineering, China University of Mining and Technology - Beijing, Beijing 100083, China; Corresponding author.

Journal volume & issue: Vol. 32, no. 5
pp. 951 – 963

Abstract

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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.

Published in International Journal of Mining Science and Technology

ISSN: 2095-2686 (Print); 2589-062X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/international-journal-of-mining-science-and-technology

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