The first problem for DEM to simulate the work process of the chamber system of the EPB shield machine is the modeling of the conditioned sands.
离散单元法模拟盾构密封舱土压力系统工作过程的首要内容是改性土的模拟。
With the superiority of technology and economy, EPB shield machine has been in the overwhelming dominance and become the mainstream in construction technology of urban underground engineering field.
而其中土压平衡式盾构机(epb)又以其技术及经济上的优越性，在盾构施工法中占有绝对的优势地位，成为城市地下工程施工技术的主流。
With the superiority of technology and economy, EPB shield machine has been in the overwhelming dominance and become the mainstream in construction technology of urban underground engineering field.
而其中土压平衡式盾构机(epb)又以其技术及经济上的优越性，在盾构施工法中占有绝对的优势地位，成为城市地下工程施工技术的主流。
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