论文部分内容阅读
高层建筑桩箱(筏)基础设计,一般是根据上部结构总荷载及单桩允许承载力按均匀等距离布桩,这种方法比较简单、方便,但与实际受力情况不符。根据国内外对高层建筑箱基群桩的现场测试,证明基础下桩顶反力的分布都显示出角桩最大,边桩次之,中间桩最小这样一个规律。因之按均匀布桩的设计方法是不合理的。为此,铁道部建
The design of the high-rise building pile box foundation is generally based on the total load of the upper structure and the allowable bearing capacity of the single pile. The method is simple and convenient, but it is inconsistent with the actual stress conditions. According to the on-site testing of high-rise box foundation piles at home and abroad, it is proved that the distribution of reaction forces at the top of the foundation shows the maximum of corner piles, followed by edge piles, and the minimum of intermediate piles. Therefore, it is unreasonable to design a uniform pile. To this end, the Ministry of Railways built