摘要
静力触探作为一种常用的地质勘探技术,广泛应用于软土参数的测量研究。文中以A、B两地基坑工程为案例,在传统理论的基础上,考虑CPTU试验在参数获取中的作用,提出新的理论计算公式,并现场试验。结果表明,静力触探试验得到的预测值与室内试验得到的不排水三轴试验值的变化规律基本一致,因此,利用场地样本反演得到的反演值推算出场地的不排水强度具备可靠性。锥尖阻力约为不固结不排水强度的16倍,两者呈正相关线性关系,拟合度高达85%。
Static cone penetration,as a commonly used geological exploration technique,is widely used in the measurement and research of soft soil parameters.Taking the foundation pit engineering of A and B as examples,this article considers the role of CPTU test in parameter acquisition based on traditional theory,proposes a new theoretical calculation formula,and conducts on-site tests.The results indicate that the predicted values obtained from the static penetration test are basically consistent with the variation pattern of the undrained triaxial test values obtained from indoor tests.Therefore,using the inversion values obtained from the site sample inversion to calculate the undrained strength of the site is reliable.The cone tip resistance is approximately 16 times the strength of the unconsolidated undrained material,and there is a positive linear correlation between the two,with a fitting degree of up to 85%.
作者
陈世夏
Chen Shixia(Fujian Fugong Technology Consulting Co.Ltd.,Fuzhou,Fujian 350118)
出处
《江西建材》
2023年第9期179-181,184,共4页
Jiangxi Building Materials
关键词
静力触探
软土
工程应用
Static sounding
Soft soil
Engineering Applications
作者简介
陈世夏(1973-),男,福建福州人,本科,工程师,主要研究方向为岩土工程勘察、设计、咨询等。
