2021 3rd International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2021)
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Prof. Shaokun Ma

Prof. Shaokun Ma

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Prof. Shaokun Ma

Guangxi University

Prof. Ma is a nationally registered supervision engineer, a professor and a doctoral supervisor. He obtained his Bachelor's degree from Industrial and Civil Architecture, Department of Civil Engineering, Hunan University, in 1994. In 2005, he obtained his Master's degree from Hydraulic Structure, School of Civil Engineering and Architecture, Guangxi University, under the guidance of Prof. Zhongqing Zhang. Taught by Prof. Maosong Huang, he obtained his Ph.D. from Geotechnical Engineering, Department of Geotechnical Engineering, Tongji University, in 2008. Then he finished his post-doctoral study at the Hong Kong University of Science and Technology under Prof. Ng, CWW, in 2010. From 2017-2018, he served as a visiting scholar at the University of Newcastle(Australia), where he studied under Prof. Olivier Buzzi. Currently, he is director of the Department of Geotechnical and Underground Engineering, College of Civil Engineering and Architecture, Guangxi University. There, he is also head of the Underground Engineering Research Institute and vice-chairman and secretary-general of the Guangxi Society for Rock Mechanics and Engineering. He holds the membership of the ninth council of the Chinese Institution of Soil Mechanics and Geotechnical Engineering. Prof. Ma has published approximately 100 works and has been granted ten national patents, with 60 papers included in SCI/EI. The projects he has chaired include: three projects funded by the National Natural Science Foundation of China, one key project supported by Guangxi Natural Science Foundation, three provincial and ministerial projects, and more than 20 horizontal projects. Prof. Ma has won more than ten awards, including the Hong Kong Tang Family Outstanding Teacher Award, Outstanding Contributor to National Quality Engineering Award in 2016-2017, one first prize of the Science and Technology Award of China Highway & Transportation Society, two second prize (in 2017 and 2018) and one third prize of the Science and Technology Progress Award of Guangxi Zhuang Autonomous Region, and the Provincial Teaching Achievement Award. The Guangxi University Integrated Gymnasium, a project he directed, has won the 12th Gold Award of China's Construction Engineering Steel Structure, the 2016-2017 second batch of National Quality Project Award and the 2017-2018 China Installation Project High-Quality Awards (China Installation Star).

Title: Stability of excavation face of shield-driven tunnels and its influence on adjacent piles (pipelines)

Abstract: With the advantages of fast speed, punctuality and large capacity, the urban subway is highly prized by citizens as an essential means to relieve urban traffic pressure. Urban subway construction is mainly using the shield method. When shield-driven tunnels passe through complex areas such as multi-interbedded formation and areas adjacent to piles (pipelines), it is easy to cause instability of the excavation face, soil deformation and affect the regular use of surrounding buildings and structures. Due to deficient research on the above problems, this paper takes the Nanning Metro as an example to study the stability of the excavation face of shield-driven tunnels and its influence on adjacent piles (pipelines). The 3D visualization modeling based on transparent soil, the micro-discrete element simulation, the large-scale centrifugal model test, and the 3D finite element analysis are adopted in this research. The research contents mainly include the stability of excavation face under multi-interbedded stratum, the influence of shield-driven tunnels with different buried depths on adjacent pile groups, and the impact of shield-driven twin tunnels with different buried depths and different excavation sequences on adjacent buried pipelines.