摘要
标准贯入试验是确定土部分物理力学性质方法之一,且操作简单、效率高及适用性强等特点。通过室外标准贯入试验和室内土工试验来分析某地区粉土的部分物理力学参数与标准贯入击数之间关系。研究表明:标贯击数与该地区粉土压缩模量Es、粘聚力c、内摩擦角φ以及塑性指数I_(P)有较强正向线性相关,与压缩系数α、孔隙比e以及液性指数I_(L)有着较强的负向线性相关。研究成果可通过标贯击数对当地粉土的部分物理力学性质做定性的预测,增加野外勘察经验,减少当地工程造价费用。
Standard penetration test is one of the methods to determine the physical and mechanical properties of soil,and it has the characteristics of simple operation,high efficiency and strong applicability.Through outdoor standard penetration test and indoor geotechnical test,the relationship between some physical and mechanical parameters of silt and standard penetration blow counts in an area is analyzed.The results show that the SPT blow count is related to the compressive modulus Es,cohesion c and internal friction angle of silt in this areaφand the plasticity index I_(p) has a strong positive linear correlation,coefficient of compressibilityɑ,void ratio e and liquid index I_(L) has a strong negative linear correlation.The research results can qualitatively predict some physical and mechanical properties of local silt through standard penetration blow count,increase field investigation experience and reduce local project cost.
作者
宋国文
李大华
韩孟君
SONG Guowen;LI Dahua;HAN Mengjun(College of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China;Anhui Construction Engineering Group,Hefei 230601,China)
出处
《佳木斯大学学报（自然科学版）》
CAS
2022年第2期6-9,82,共5页
Journal of Jiamusi University：Natural Science Edition
基金
国家重点研发计划(2016YFC0701500)
安徽建工集团股份有限公司校企合作基金资助项目(HYB20210150)。
关键词
标准贯入试验
物理力学参数
线性相关
standard penetration test
physical and mechanical parameters
linear correlation
