本书原售价58.13美元,净重1310克,年代久远,图书落尘有气味,私藏自然旧。【图书分类:工业技术 > 建筑科学 > 建筑结构】Excerpt from Foundations of Structures
In foundation work the engineer must use rocks and soil as structural materials. He realizes that the planning of'the superstructure should be based upon the characteristics of the materials of which it is to be built, and he may select and use the materials that will best serve his purpose. On the other hand, in planning the substructure, he must use whatever soils are already there, or he must devise ways to improve the situation in the interests of safety and suitable economy.
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