[建筑地基]砂石垫层承载力能达到多少？ [复制链接]

请问砂石垫层承载力能达到多少？我做结构设计，30层住宅楼，筏板基础下是泥卵，承载力只有180kPa,其下是卵石层，如挖除泥卵，采用砂石垫层，用重碾路机碾压，承载力能达到500kPa吗？

The bearing capacity of soil is determined by some important factors, such as soil properties of all the layers, embeddment depth, ground water level, surcharge force. *)NR$9lGv  
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the building you are designing is high-rise and should be considered carefully. D){"fw+b  
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If it is convenient, it will be better to upload some soil profile and site condition information for the experts in this forum to discuss.

very humorous but impressive reply from Prof B.H.Fellenius about the compressibility calculation after backfill on embankment. g^z5fFLg/8  
" Note, there is no excuse for omitting determining the compressibility and preconsolidation stress, the most basic of soils investigation. Would you accept the advice of a physician who in response to your consulting needs would not check your blood pressure, heart rate, and general state of health, but just decide your treatment by reference to a text book?"

你可以做实验啊，最直接的现场的载荷试验，这个可以说明承载力能不能达到500KPa

规范条文说明有:碎石,卵石:200~300 )
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砂夹石200~250

你查一查相关规范，砂石垫层承载力好像不能达到500kPa，记得好像只能提高200kPa左右。 $_ix6z  
没做过砂石垫层施工，砂石垫层能用重碾路机碾压吗？

应该可以，对砂砾石料有要求

达不到你的要求的吧

一般200~300KPA，须做载荷试验。

直接用素混凝土浇