Objective To summarize the lateral neck skin expansion repair in tissue defect of cheek in 113 cases during past 13 years, look for a best method for different condition and different repairs.
A new method is proposed to estimate the increment of the lateral pressure around the installing pile by combining the theory of cavity expansion with the limit equilibrium method.
通过理论推导提出了在土的极限平衡条件下结合小孔扩张理论估算单桩桩侧土压力增量的方法。
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Steel tube take full advantage of the expansion properties of expansive concrete, have a greater chemical prestressing, and make higher lateral prestress for core concrete.