Challenges and Prospects of Construction Technology for Extra-large Diameter Composite Shields
(1 Chinese Society for Rock Mechanics & Engineering, Beijing 100029; 2 State-owned Assets Supervision and Administration Commission of Guangzhou Municipal Government, Guangzhou 510230; 3 Guangzhou Metro Group Co., Ltd., Guangzhou 510330;4 Guangzhou Mass Transit Engineering Consultant Co., Ltd., Guangzhou 510000)
Abstract：
Following the concept of "geology is the foundation, shield the key, and people (technology and manage? ment) the root" in shield tunnelling technology decision-making, risks in the process of the survey, design, shield selection and configuration, as well as construction are analyzed for extra-large diameter shields driving in composite strata, mainly including three typical rock groups of granite, limestone and clastic rock as the dominant matrix. And the relevant targeted solutions are put forward. It elaborates on the current status and challenges of the construction technology of extra-large diameter composite shields and makes an outlook on the future development of extra-large diameter composite shields in China, which is of significant guiding implications.
ZHU Weibin1,
2 ZHONG Changping3 MI Jinsheng1 HUANG Weiran4
.Challenges and Prospects of Construction Technology for Extra-large Diameter Composite Shields[J] MODERN TUNNELLING TECHNOLOGY, 2021,V58(3): 6-16
2021, Vol. 58 