[其他]场地覆盖层50米厚，有没必要一定要打到中风化岩？ [复制链接]

设计院初勘建议部分桩基要打穿强风化，进入中风化岩。但50米的强风化层，打进去造价高、工期长。 8$SA"c)  
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查了相关规范，对于这种深厚强风化层，如果桩端持力层承载力和变形能验算通过，是不是可以不用打到中风化？ *KF-q?PBb  
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有没有类似场地经验的大佬？这种深厚软岩/强风化层，采用摩擦桩或者扩底桩，沉降控制到底能不能满足高层建筑的要求？ 0QE2e'}}-  
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希望有做过类似项目的同行指点一下，到底是该守打到底，还是可以用优化方案。感激不尽！！ K1S)S8.EZ8  
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