深厚软土区大直径桩水平承载特性现场试验研究  

FIELD TESTS OF LARGE DIAMETER PILES SUBJECTED TO LATERAL LOADS IN DEEP SOFT SOILS

作　　者：霍少磊[1,2] 竺明星 龚维明 戴国亮[1] HUO Shaolei;ZHU Mingxing;GONG Weiming;DAI Guoliang(School of Civil Engineering,Southeast University,Nanjing 211189,China;China Energy Engineering Group Planning&Engineering Co.,Ltd.,Beijing 100120,China)

机构地区：[1]东南大学土木工程学院,南京211189 [2]中国能源建设集团规划设计有限公司,北京100120

出　　处：《工业建筑》2021年第5期139-144,共6页Industrial Construction

基　　金：国家自然科学基金青年科学基金项目(51808112);江苏省基础研究计划(自然科学基金)青年基金项目(BK20180155)。

摘　　要：在桥梁工程中,桩不仅要承担较大的竖向荷载,还需要承担波浪、风、地震、车船撞击力等水平荷载。基于对2根大直径钻孔灌注桩水平静载试验,分析深厚软土地基中钻孔灌注桩水平受荷的承载特性,通过分析可知:m法计算结果与实测值偏差较大,p-y曲线法与实测值较为接近且计算结果偏于安全。In bridge engineering, piles not only bear vertical loads, but also are subjectd to lateral loads such as waves, wind, earthquakes and impact loads impacted by carriers. Based on lateral static load tests of two large-diameter bored piles, the bearing characteristics of bored piles subjected to horizontal loads in deep soft soil foundation were analyzed. The results of tests showed that the results calculated by m-method deviated greatly from the measured values, the results calculated by the method of p-y curves were closer to the measured values and more safe.

关 键 词：大直径桩 水平荷载 深厚软土 M值 P-Y曲线 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]