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MODERN TUNNELLING TECHNOLOGY 2014, Vol. 51 Issue (5) :61-65    DOI:
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Analysis of the Stability Control Measures for a Ground-Penetrating Shield Tunnel
(1 Shanghai University, Shanghai 200072; 2 Shanghai Tunneling Enginnering Co. Ltd., Shanghai 200082; 3 Shanghai Underground Space Architecture Design & Research Institute, Shanghai 200032; 4 Department of Civil Engineering, Shanghai JiaoTong University, Shanghai 200240)
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Abstract Based on the Nanjing ground-penetrating shield tunnel project, the finite-element simulation method is adopted to simulate the whole construction process of the ground-penetrating shield. An internal counterweight and surface loading are imposed on the model to analyze their effectiveness at controlling floating and improving stability of the tunnel. The results show that the internal counterweight can significantly improve the stability of the tunnel, while surface loading can reduce tunnel floating to some extent without obvious effects. According to in-situ conditions, the best way to realize the optimum stability of the tunnel is the combination of an internal counterweight and surface loading.
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Articles by authors
WU Hui-Ming-1
2
Teng-Li-3
YU Ya-Lei-4
Ye-Guan-Lin-4
Keywords： Ground-penetrating shield tunnel   Tunnel floating   Internal counterweight   Surface loading   Stability     
Abstract： Based on the Nanjing ground-penetrating shield tunnel project, the finite-element simulation method is adopted to simulate the whole construction process of the ground-penetrating shield. An internal counterweight and surface loading are imposed on the model to analyze their effectiveness at controlling floating and improving stability of the tunnel. The results show that the internal counterweight can significantly improve the stability of the tunnel, while surface loading can reduce tunnel floating to some extent without obvious effects. According to in-situ conditions, the best way to realize the optimum stability of the tunnel is the combination of an internal counterweight and surface loading.
Keywords： Ground-penetrating shield tunnel,   Tunnel floating,   Internal counterweight,   Surface loading,   Stability     
published: 2014-08-07
Cite this article:   
WU Hui-Ming-1, 2 , Teng-Li-3 etc .Analysis of the Stability Control Measures for a Ground-Penetrating Shield Tunnel [J]  MODERN TUNNELLING TECHNOLOGY, 2014,V51(5): 61-65
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http://www.xdsdjs.com/EN/      或     http://www.xdsdjs.com/EN/Y2014/V51/I5/61
　
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