Theme of cultural connotation depth of excavation.

主题文化内涵的深度挖掘。

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When the depth of excavation is not too deep, reinforced cemented soil retaining walls can be used, where shaped steel is applied in the zone subjected to tensile force.

对于一些开挖深度不大的基坑工程，可以采用在受拉区加入型钢的加筋水泥土挡墙支护形式。

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It is also lighter than comparable steel or concrete structures, reducing the depth and extent of excavation and foundations.

同可比较的钢材或者混凝土结构，它更加的轻巧，减少了基础开挖的的深度和广度。

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"The depth of the excavation and the strength of the foundation tell you how big the building is going to be, " he says.

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