Abstract：
Shield construction is was used for the Fengtai East Street Station-Fengtai North Road Station section of Beijing Subway Line 9, which is located in a waterless stratum with gravel, cobbles, and boulders. Based on the geological investigation and related data from an exploratory well, the spatial distribution and mechanical properties of the gravel, cobble, and boulder stratum are understood. Wear of the cutterhead and cutting tools is reduced by adaptability improvements to key parts of the EPB shield with a spoke-type cutterhead. By determining appropriate parameters for shield tunnelling, the long-distance full-face tunnel drive in waterless sandy stratum with cobbles and boulders was completed.
GUO Cai-Xia-1,
2 ,
Zhang-Ding-Li-1 etc
.Key Techniques for EPB Shield Construction in a
Waterless Sandy Stratum with Cobbles and Boulders
[J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(6): 148-153
2014, Vol. 51 