Because of asymmetry of side arch, the support for casting will bear tremendous horizontal thrust when placing side arch concrete.
由于边拱具有不对称性,因此浇注边拱混凝土时现浇支架将承受巨大的水平推力。
For high in situ stress occurred in Ertan dam area, combined action of initial in situ stress field, time and space effect during excavation and external loads arch thrust etc.
笔者针对二滩电站坝区存在的高地应力现象,从初始地应力场的建立、施工开挖的时空效应,直到与拱推力等外荷载共同作用下对坝基岩体稳定的影响全过程进行了分析和计算。
Increasing the arch thrust augments the shear stress on the surface of the shearing resistance part, which counteracts the influence of the crushed rock.
同时由于拱向应力的增大,即增大了抗剪面剪应力,抵消了坝体下游破碎岩石的影响。
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