云南新近系、古近系泥岩嵌岩旋挖成孔灌注桩桩基参数研究  

Research on Pile Foundation Parameter of Socketed Rotary Drilling Cast-in-place Pile in Neogene and Paleogene Mudstone in Yunnan

作　　者：尹敢 李海根 翁春文 YIN Gan;LI Haigen;WENG Chunwen(Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co.,Ltd.,Kunming 650051,Yunnan,China)

机构地区：[1]中国有色金属工业昆明勘察设计研究院有限公司,云南昆明650051

出　　处：《工程技术研究》2025年第3期24-26,共3页Engineering and Technological Research

摘　　要：文章基于云南省内工程勘察实践积累的206根嵌岩旋挖成孔灌注桩单桩静载试验成果的完整资料,对比分析单桩竖向极限承载力标准值的计算值与实测值,反算样本桩嵌岩段的侧阻力及端阻力值,从而探讨了新近系、古近系泥岩桩基经验参数与岩石天然单轴抗压强度值、标准贯入试验锤击数的关系,为相关研究提供了科学的参考依据。Based on the complete data of single pile static load test results of 206 socketed rotary drilling castin-place piles accumulated in engineering investigation practice in Yunnan Province,this paper compares and analyzes the calculated value and measured value of the standard value of vertical ultimate bearing capacity of the single pile,and inversely calculates the side resistance and end resistance value of the socketed section with sample piles,so as to explore the relationship between the empirical parameters of Neogene and Paleogene mudstone pile foundation and the natural single pile uniaxial compressive strength value of rock and the hammering number of standard penetration test,which provides a scientific reference for related research.

关 键 词：新近系泥岩 古近系泥岩 旋挖成孔灌注桩 桩基参数 

分 类 号：TU473.1[建筑科学—结构工程]