Xinsheng Yin

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In order to raise the performance of tunnel drilling rig with all hydraulic head type, pump-controlled technology was applied in hydraulic system design. Working condition and basic circuit of hydraulic system were analyzed in this paper, at the base of which some disadvantages of the hydraulic system with valve-controlled technology were introduced. A(More)
By analyzing the present research results on the concrete expanded-plates pile, the article presents further preliminary studies of their influence on the bearing capacity and failure behavior when the bearing plate is put adjacent to different characteristics of soil and thickness of soil layer. The pile calculation mode for ultimate compression and uplift(More)
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