静力法估算静压管桩单桩极限承载力方法的研究  

Research on Estimating the Ultimate Bearing Capacity of Jacked Pipe Pile with Static Analysis Method

作　　者：赵俭斌[1] 孙云飚[1] 耿东阳[2] 孙传胤 李峰[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168 [2]东北大学资源与土木工程学院,沈阳110004 [3]中冶沈勘工程技术有限公司,沈阳110015

出　　处：《工程勘察》2008年第4期9-12,共4页Geotechnical Investigation & Surveying

基　　金：辽宁省地方规范项目;建设部科技项目(05-K1-9)

摘　　要：通过采用静力法估算单桩极限承载力,对不同地区的工程进行优化设计,降低基础造价,促进静压管桩技术在东北地区的广泛应用。通过对静力法理论研究及实际工程中试桩的实验研究,将估算结果与静载荷试验结果进行对比分析。采用静力法估算单桩极限承载力是一种较准确可靠的方法,准确性优于《沈阳市静压管桩规定(暂行)》中的经验方法。为保证桩基工程的安全、经济合理,建议东北地区在勘察设计阶段采用此种方法估算静压桩单桩极限承载力。Ultimate bearing capacity of jacked pipe pile is estimated with static analysis method which can make progress in construction optimum design of different districts and decreasing the foundation manufacturing cost to promote the universe application of static press pile in northeastern district. Some research on the static analysis method and practice construction has been done and the estimation has been contrastively analyzed with ＇the static load test result, then it is concluded that static analysis method is a comparably exact and reliable approach of estimating ultimate bearing capacity, which is a more accurate empirical method than the one in the norm. In order to keep the pile foundation safety and avoid wasting, the ohove method to estimating ultimate hearing capacity; of jacked pipe pile in northeastern district is suggested to he used, if there is accurate reconnaissance datum.

关 键 词：静力法 经验方法 静压管桩 单桩极限承载力 

分 类 号：TU473.1[建筑科学—结构工程]