广东某工程岩土参数分析及基础设计

Analysing of the Soil Parameter and Designing of the Foundation in a Project in Guangdong Province

基础设计时首先要根据场地勘察资料来确定岩土各参数的取值,然而关于各参数的试验资料通常都是小样本数据,根据这些数据确定的参数值的可靠性通常得不到保证。通过广东肇庆学院图书馆工程,介绍了利用已有经验和同类工程经验进行参数估计的推广贝叶斯法,根据该法得到的参数值进行基础设计,计算变形量与实际值非常吻合,验证了推广贝叶斯法在岩土参数估计方面的可行性与可靠性。

When the foundation been designing, some soil parameters should be obtained firstly according to the data of site investigation, but the data with regard to these parameters were all small sample data, so the reliability of the parameters which were calculated according to these data often can not be guaranteed. Through the library building project in Zhaoqing College in Guangdong province, the extended bayesian method is introduced which was used to estimate the parameters depending on the existent experience and congeneric engineering experience. The deformation of the foundation which was designed on the basis of these parameters was in accord with the true value in the whole. It validated the feasibility, reliability of the extended bayesian method in the field of estimation of the soil parameter.