银川地区粉细砂层地基土承载力特征值试验研究

Experimental study on characteristic values of bearing capacity of foundation soil with silty sand in Yinchuan

本文结合工程实例对银川地区中密—密实粉细砂层进行了地基土承载力特征值试验研究,研究结果表明:宁夏银川市密实粉细砂层地基土承载力特征值非常高,与岩土工程勘察时用标准贯入试验所得到的粉细砂层地基土承载力特征值相比较有大幅度的提高。在满足建筑物安全的前提下,经济、合理地选择准确、可靠的地基土承载力特征值,可以降低工程造价,缩短工期,取得良好的经济和社会效益。

Based on the experimental study for the engineering examples with medium-dense-grained silty sand in Yinchuan,the characteristic values of the bearing capacity of the foundation soil are studied.The study results indicate that the characteristic values of the bearing capacity of foundation soil with dense silty sand are very high,and the characteristic values greatly increase compared with the bearing capacity of the foundation soil from standard penetration tests in geotechnical engineering investigation.To meet the premise of building safety,the reliable and reasonable characteristic values of the bearing capacity should be determined,which could reduce the construction cost,shorten the construction period and achieve good economic and social benefits.