合肥工业大学学报（自然科学版）
閤肥工業大學學報（自然科學版）
합비공업대학학보（자연과학판）
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2015年
4期
520-524,563
,共6页
支撑刚度%混凝土内支撑%尺寸效应%桩身位移%桩身内力%支撑轴力
支撐剛度%混凝土內支撐%呎吋效應%樁身位移%樁身內力%支撐軸力
지탱강도%혼응토내지탱%척촌효응%장신위이%장신내력%지탱축력
support stiffness%concrete inner support%scale effect%displacement of pile%internal force of pile%axial force of support
文章基于南京河西某工程的地质模型，进行了不同长度支撑约束下基坑支护桩位移、弯矩、剪力以及支撑轴力的变化情况对比分析。结果表明：随着支撑长度的增加，第1道支撑轴力均减小，且减幅较小，下部支撑轴力均增大；随着支撑长度的增加，挖深6.0 m 时支护桩变形和内力变化均较小；挖深10.0 m 和14.0 m时，支护桩弯矩均增大，正剪力均减小，负剪力均增大。
文章基于南京河西某工程的地質模型，進行瞭不同長度支撐約束下基坑支護樁位移、彎矩、剪力以及支撐軸力的變化情況對比分析。結果錶明：隨著支撐長度的增加，第1道支撐軸力均減小，且減幅較小，下部支撐軸力均增大；隨著支撐長度的增加，挖深6.0 m 時支護樁變形和內力變化均較小；挖深10.0 m 和14.0 m時，支護樁彎矩均增大，正剪力均減小，負剪力均增大。
문장기우남경하서모공정적지질모형，진행료불동장도지탱약속하기갱지호장위이、만구、전력이급지탱축력적변화정황대비분석。결과표명：수착지탱장도적증가，제1도지탱축력균감소，차감폭교소，하부지탱축력균증대；수착지탱장도적증가，알심6.0 m 시지호장변형화내력변화균교소；알심10.0 m 화14.0 m시，지호장만구균증대，정전력균감소，부전력균증대。
Based on the geological model of a project in Hexi ,Nanjing City ,the changes of the dis‐placement ,bending moment ,shear force and axial force of support of the foundation pit supporting piles under the constraints of different supporting length are comparatively analyzed . The result shows that with the increase of the supporting length ,the first axial forces of support reduce slightly , while the lower axial forces of support increase .With the increase of the supporting length ,the de‐formation and the internal force change of the supporting piles are relatively small w hen the founda‐tion is excavated to 6.0 m ,w hile the bending moments increase ,the positive shear forces decrease and the negative shear forces increase w hen excavated to 10.0 m and 14.0 m .
