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建筑结构大型化带来了许多新的问题,如沉降不合理会引起的建筑倾斜、倒塌以及附属构件的破坏,安全系数较低保证不了此类特种结构必要的安全储备等。因此针对于此类特种结构提出一种接近工程实际受力行为的计算方法迫在眉睫。本文以庆阳某建筑挤密桩地基为背景,将工程中庞大的布桩形式进行处理简化处理。通过变形及稳定性求解,得到最大沉降值小于规范规定的值,安全系数大于一般工程要求。并且运用理论公式计算了复合地基的最大沉降值,从而验证了计算的合理性,为今后工程结构安全性的评价提供了新思路。
Large-scale construction has brought many new problems, such as the settlement caused by unreasonable settlement tilt, collapse and the destruction of ancillary components, the lower the safety factor can not guarantee such a special structure necessary safety reserves. Therefore, it is imminent to propose a calculation method that is close to the actual force-bearing behavior of such special structure. In this paper, Qingyang a compacted pile foundation as the background, the project in the form of a large pile of piles to simplify handling. Through the solution of deformation and stability, the maximum settlement value is less than the value stipulated in the code, and the safety factor is greater than the general engineering requirements. The maximum settlement of the composite foundation is calculated by using the theoretical formula, which verifies the rationality of the calculation and provides a new idea for the evaluation of the structural safety of the project in the future.