摘要
静力触探实验以其连续性、重现性好及可靠性高等优点在现场实验中得到广泛的应用,但目前国内外对于其实验数据的数字化管理及其相关性分析方面的研究仍然较少。借助VBA语言对Excel进行二次开发,建立了静力触探实验数据库。该数据库不但具有信息量大、操作简单、代码开放等特点,而且具有随着库中数据量的丰富,其分析结果可靠性越高的优点。并且以该库中的上海地区18个工程项目的岩土工程勘察的实验数据为基础,分别对静力触探实验比贯入阻力P_S与土的压缩模量E_0、固结快剪指标(C_(cq)、φ_(cq))、以及三轴固结不排水指标(C_(cu)、φ_(cu))做了相关性分析,得到三组关系式。对这几组关系式的显著性检验的结果表明相关性很好,可为地层条件与上海地区类似的工程设计作为参考依据。
CPT is widely used in the field in--situ tests with good continuity, reproducibility and reproducibility, but its digital management and the study of correlation is still little. The CPT database what not only has the characteristics of large information content, simple operation, code open and so on, but also has the advantage that the analysis result is more reliable as the data is more abundant, was established by Excel VBA . Based on the experimental data of geotechnical engineering investigation come from 18 projects in Shanghai in CPT database, three groups of relationship formula of specific penetration resistance Ps and soil compression modulus E0, consolidated--quickly shear indicators（Ccq、φcq） and triaxial consolidation draining shear indicators（Ccu、φcu） are got by correlation analysis. Test of significance shows that： these formulas can be used as engineering design reference in some areas that are similar to Shanghai.
出处
《岩土工程技术》
2010年第6期307-311,共5页
Geotechnical Engineering Technique
基金
铁道部重点课题(2009G007-B)
