电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2015年
z1期
32-36
,共5页
PHC桩%锤击沉桩%消除地基液化
PHC樁%錘擊沉樁%消除地基液化
PHC장%추격침장%소제지기액화
PHC pile%impacting piling%soil liquefaction
PHC桩即为预应力高强度管桩，属预制桩，主要用来加固上部地层偏软，下部桩基持力层起伏不大，沉桩条件较好的地基。由于为部分挤密性质，所以对场地的液化土层没有明显改善，但在我省豫东某大型电厂的场地，进行PHC桩原体试验时，不但提高了地基土的强度，而且基本消除了场地地基土的液化性。本文根据场地特征结合原体试验结果，对PHC桩消除液化进行分析探讨。
PHC樁即為預應力高彊度管樁，屬預製樁，主要用來加固上部地層偏軟，下部樁基持力層起伏不大，沉樁條件較好的地基。由于為部分擠密性質，所以對場地的液化土層沒有明顯改善，但在我省豫東某大型電廠的場地，進行PHC樁原體試驗時，不但提高瞭地基土的彊度，而且基本消除瞭場地地基土的液化性。本文根據場地特徵結閤原體試驗結果，對PHC樁消除液化進行分析探討。
PHC장즉위예응력고강도관장，속예제장，주요용래가고상부지층편연，하부장기지력층기복불대，침장조건교호적지기。유우위부분제밀성질，소이대장지적액화토층몰유명현개선，단재아성예동모대형전엄적장지，진행PHC장원체시험시，불단제고료지기토적강도，이차기본소제료장지지기토적액화성。본문근거장지특정결합원체시험결과，대PHC장소제액화진행분석탐토。
high strength prestressed concrete pipe pile (PHC) is mainly used to reinforce the soft ground, under which the bearing stratum is not be so excessive and the jacking pile condition is good. As the foundation treament by PHC pile is partly compress, it nearly has no effect on the soil liquefaction. However, the foundation treament by PHC pile not only improves the foundation strength, but also largely eliminate the soil liquefaction. The paper study the effect of PHC, based on the ground Characteristics and ifeld experment reslut.
