Step-slope excavation is suitable for the project of which the foundation has better soil properties, lower excavation depth or enough site space for step-slope.
放坡开挖适用于地基土质较好、开挖深度不深，以及施工现场有足够放坡场所的工程。
The corrosion of the site soil to building foundation has not been aroused the construction industry insiders extensive concern, because the effect is concealed and the hazard is deferred.
长期以来，在场地土对建筑基础的腐蚀问题上，由于其作用的隐蔽性与危害的滞后性，一直没有引起业内人士的足够重视； 在岩土工程实践中，许多地方还在拿以前的“地区经验”说话。
Pile foundation is widely used in construction in Shanghai region, but the site test data on bearing capacity of pre-cast concrete pile based on cohesive soil were lower than theoretical level.
上海地区建筑工程普遍采用桩基，但以粘性土为持力层的预制桩实测承载力普遍低于理论值，主要是因为休止期较短及对端承力作用认识不足。
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