辽宁工程技术大学学报（自然科学版）2024，Vol.43Issue(6)：656-661,6.DOI:10.11956/j.issn.1008-0562.20230504
大直径嵌岩基桩极限承载力判定的对比研究
Study on determinations of ultimate bearing capacity of large diameter rock-socketed pile
摘要
Abstract
For estimating the ultimate bearing capacity of large-diameter rock-socketed pile foundation(LDRSPF),the vertical static load test method for pile foundations and pile foundation bearing capacity theories and universal function analysis method were used to construct the potential energy function specific energy function of rock-socketed pile(RSP),and the specific energy comparison method(SECM)for determining the ultimate bearing capacity of RSP was proposed,that is,RSP reached the ultimate bearing state when the stress at the end of the pile exceeds the ultimate shear strength of the rock mass around the rock-socketed section.The results show that a positive correlation is between the ultimate bearing capacity of RSP and both the socketed depth-to-diameter ratio and the strength of the rock mass,and the ultimate bearing capacity of RSP may be objectively determined by the objectivity of SECM for determining.The research conclusion provides a new method for the ultimate bearing capacity of LDRSPF.关键词
嵌岩桩基础/大直径桩/极限承载力/载荷沉降曲线/比能Key words
rock-socketed pile foundation/large diameter pile/ultimate bearing capacity/load-settlement curve/specific energy分类
建筑与水利引用本文复制引用
程凌刚,刘冈朋,白江涛,杨波,张鑫..大直径嵌岩基桩极限承载力判定的对比研究[J].辽宁工程技术大学学报（自然科学版）,2024,43(6):656-661,6.基金项目
辽宁省自然科学基金项目(20180551140) （20180551140）
中交建筑集团项目(NCXM-00-2023-003-QTHT-006) （NCXM-00-2023-003-QTHT-006）
