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Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground

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Abstract

Deep sedimentary deposits of soft clays are widely distributed in coastal areas as well as many interior major cities in China. In order to study the stratum adaptability of earth pressure balance (EPB) shield machine tunneling in such types of soft ground, model tests of tunneling excavation, using the running tunnel of the Shanghai Metro Line M8 as a background, are carried out with different over burden ratios, opening rates of cutter head, driving speeds and rotation speeds of screw conveyor. Based on the test results, the interrelationships between chamber pressure and mucking efficiency, mucking rate and driving speed, thrust force and torque are obtained. The influences of tunnel depth, opening rate of cutter head and driving speed on thrust force and torque are revealed. Such findings can not only facilitate establishing relationships between shield working parameters and soil properties, but also serve as a guide for the design and construction of shield tunnel in soft ground.

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Authors and Affiliations

  1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai, 200092, China

    Hehua Zhu & Shaoming Liao

  2. School of Naval Architecture and Civil Engineering, Shanghai Jiaotong University, Shanghai, 200030, China

    Qianwei Xu

  3. Department of Civil Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China

    Qianwei Xu & Qizhen Zheng

Authors
  1. Hehua Zhu
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  2. Qianwei Xu
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  3. Qizhen Zheng
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  4. Shaoming Liao
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Corresponding author

Correspondence to Qianwei Xu.

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Translated from China Civil Engineering Journal, 2007, 40(9): 87–94 [译自: 岩土工程学报]

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Zhu, H., Xu, Q., Zheng, Q. et al. Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground. Front. Archit. Civ. Eng. China 2, 350–358 (2008). https://doi.org/10.1007/s11709-008-0051-5

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  • DOI: https://doi.org/10.1007/s11709-008-0051-5

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