Abstract: There are many problems during shield/TBM construction, such as the difficulty of muck removal, tool wear, shield tail failure, ground settlement, which seriously affected the safety and efficiency of tunnel construction and become important issues for shield construction at present. The key to solve these problems is to carry out the research on shield/TBM soil conditioning and tail sealing technology. This study described the causes of the above problems. Based on the common construction technology of shield tunnel, this study focused on the current research status of soil conditioning and shield tail sealing technology at home and abroad, and summarized the shortcomings of current common construction methods and construction technology. Relying on the combination of laboratory test and field test, new shield materials and supporting construction technologies were developed, such as high-efficiency soil conditioning agent, anti-dust and wear-resistant agent, high-performance shield tail sealing grease, synchronous grouting filling agent. The theoretical analysis and effect comparison test were carried out to solve the technical problems related to the shield/TBM tunneling process, ensuring the safe and rapid construction of the tunnel, and providing the theoretical basis and technical support for soil conditioning and shield tail sealing in the complex environment with high water pressure in the future.
李树忱,万泽恩,商金华,赵世森,杨晓东,李阳. 盾构/TBM渣土改良与盾尾密封技术研究进展[J]. 隧道与地下工程灾害防治, 2019, 1(4): 33-48.
LI Shuchen, WAN Zeen, SHANG Jinhua, ZHAO Shisen, YANG Xiaodong, LI Yang. Research progress of shield/TBM soil conditioning and tail sealing technology. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(4): 33-48.
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2019, Vol. 1 
