广西大学学报（自然科学版）
廣西大學學報（自然科學版）
엄서대학학보（자연과학판）
JOURNAL OF GUANGXI UNIVERSITY （NATURAL SCIENCE EDITION）
2013年
4期
962-968
,共7页
斜桩%变形协调%轴向承载力%摩阻力
斜樁%變形協調%軸嚮承載力%摩阻力
사장%변형협조%축향승재력%마조력
batter pile%deformation compatibility%axially bearing capacity%frictional resistance
为进一步研究斜桩轴向承载力计算方法，基于斜桩的桩周摩阻力不均匀分布的特性和桩-土受力变形协调的原则，推导了斜桩轴向承载力计算公式，通过对比本文公式与规范公式的计算结果，揭示了桩身倾角、桩径、桩长和桩侧极限摩阻力等因素对斜桩轴向容许承载力的影响规律。结果表明：鉴于规范公式未考虑斜桩桩身倾角对承载力的影响，本文公式计算得到的单桩轴向承载力随着桩身倾角的增加逐渐降低；对于不同桩径，本文公式计算值均比规范公式计算值小，但两者相差7％以内；桩长或桩侧极限摩阻力较小时，规范公式得出的承载力数值要比本文公式小，但随着桩长或桩侧极限摩阻力的增大，本文公式得出的承载力逐渐大于规范公式。本文建立的轴向承载力计算公式考虑了桩身倾角与桩-土受力变形相互协调的影响，可为斜桩轴向承载力计算提供参考。
為進一步研究斜樁軸嚮承載力計算方法，基于斜樁的樁週摩阻力不均勻分佈的特性和樁-土受力變形協調的原則，推導瞭斜樁軸嚮承載力計算公式，通過對比本文公式與規範公式的計算結果，揭示瞭樁身傾角、樁徑、樁長和樁側極限摩阻力等因素對斜樁軸嚮容許承載力的影響規律。結果錶明：鑒于規範公式未攷慮斜樁樁身傾角對承載力的影響，本文公式計算得到的單樁軸嚮承載力隨著樁身傾角的增加逐漸降低；對于不同樁徑，本文公式計算值均比規範公式計算值小，但兩者相差7％以內；樁長或樁側極限摩阻力較小時，規範公式得齣的承載力數值要比本文公式小，但隨著樁長或樁側極限摩阻力的增大，本文公式得齣的承載力逐漸大于規範公式。本文建立的軸嚮承載力計算公式攷慮瞭樁身傾角與樁-土受力變形相互協調的影響，可為斜樁軸嚮承載力計算提供參攷。
위진일보연구사장축향승재력계산방법，기우사장적장주마조력불균균분포적특성화장-토수력변형협조적원칙，추도료사장축향승재력계산공식，통과대비본문공식여규범공식적계산결과，게시료장신경각、장경、장장화장측겁한마조력등인소대사장축향용허승재력적영향규률。결과표명：감우규범공식미고필사장장신경각대승재력적영향，본문공식계산득도적단장축향승재력수착장신경각적증가축점강저；대우불동장경，본문공식계산치균비규범공식계산치소，단량자상차7％이내；장장혹장측겁한마조력교소시，규범공식득출적승재력수치요비본문공식소，단수착장장혹장측겁한마조력적증대，본문공식득출적승재력축점대우규범공식。본문건립적축향승재력계산공식고필료장신경각여장-토수력변형상호협조적영향，가위사장축향승재력계산제공삼고。
In order to obtain the axial bearing capacity of a batter pile , the calculation formula for the axially bearing capacity of a batter pile was deduced based on the non-uniform distribution char-acteristics of the friction resistance around the batter pile shaft and the mechanism of pile -soil deformation compatibility .The results calculated by the proposed formula and the method given by the design code of pile were compared to explore the influence of the factors , such as pile inclina-tion, diameter, length and utmost friction resistance around pile shaft , on axial bearing capacity. The calculated results showed that the value of the pile axially bearing capacity calculated by the proposed formula decreased with the increase of pile inclination .For different pile diameters , the pile axially bearing capacity was 7%smaller than that calculated by the code's formula.The shorter of the pile length or the lesser of the utmost friction resistance of the pile was , the smaller bearing capacity calculated by the code's formula was than the values calculated by the proposed formula . Finally , with the increase of the pile length or utmost friction resistance , the value of bearing capaci-ty calculated by this proposed formula was greater than the value calculated by the code's formula. The proposed formula also takes into account of the influence of pile inclination and the mechanism of pile-soil deformation compatibility .It can be a reference to calculate axial bearing capacity of bat-ter piles.
