下卧层持力层地基承受的荷载是随着土体深度的加深而慢慢减小,到一定深度后土体承受的荷载就可以忽略不计了,这时我们就把这一层往下的土体叫做下卧层。下卧层承受的荷载虽然可以忽略,但是如果下卧层是软弱下卧层的话,就要进行处理。比如下卧层是淤泥质土,那么我们就要考虑计算下卧层承载能力。如果计算不能承受,那么要考虑地基处理,或者考虑桩基础设计。
n. substratum
misc. underlying stratum
文章详细信息 关键词: 堆载预压;;软土;;下卧层;;沉降量 [gap=463]Keywords: preloading,soft soil,substratum,settlement
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当桩端未加固土层以下有软弱下卧层时,应对其进行软弱下卧层验算;
When there is weak underlying stratum bellowed the soil which is not be reinforced, the weak underlying stratum should be taken checking computations.
推导出具有软弱下卧层土矩形基础的直接计算公式,编制了相应的计算机程序。
The direct calculation formulas of the rectangular foundation containing weak underlying stratum are induced and a computer program is developed.
采用有限单元法对不同筏板刚度下桩筏基础下卧层附加应力的分布规律进行分析。
By finite element method, the distributions of additional stress of piled raft foundations in different raft rigidities are analyzed.
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