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在丘陵地区建筑中,通常把基础做到基岩上,来处理沉降差的问题。当基岩表面坡度较大时,一部分地基基岩露头,而另一部分基岩却埋藏较深。这类工程如果处理不当,就可能造成地基沉降差过大,导致建筑结构物开裂。如果大开挖做深基础,则将大量增加基础工程量,造价增高,工期延长。而采用钻孔灌注支承桩,使建筑物全部座落在基岩上,就可以收到经济合理的效果。
In the hilly area, the foundation is usually built on the base rock to handle the problem of poor settlement. When the bedrock surface slope is large, part of the base rock outcrops, while the other part of the bedrock is buried deeper. If this kind of project is handled improperly, it may cause the foundation settlement difference to be too big, cause the architectural structure to crack. If deep excavation is done on a deep foundation, a substantial increase in the amount of basic engineering will be achieved, the cost will increase, and the duration will be extended. The use of bored support piles, so that all buildings are located on the bedrock, you can receive economic and reasonable results.