山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2015年
24期
54-55
,共2页
PHC管桩%锤击桩%软弱下卧层验算%卵石层
PHC管樁%錘擊樁%軟弱下臥層驗算%卵石層
PHC관장%추격장%연약하와층험산%란석층
PHC pipe pile%driven pile%soft substratum checking computation%pebble stratum
通过对某工程PHC管桩施工质量和检测过程的分析，结合工程地质条件的变化，研究了持力层及其下卧层对桩的承载特性的影响，并分析了发生质量事故的原因，研究表明：对于存在软弱下卧层的较薄的卵石层，采用锤击法打入PHC管桩，应注意是否会造成卵石层及其下卧层的整体沉降，从而降低管桩的桩端承载力，影响施工质量。
通過對某工程PHC管樁施工質量和檢測過程的分析，結閤工程地質條件的變化，研究瞭持力層及其下臥層對樁的承載特性的影響，併分析瞭髮生質量事故的原因，研究錶明：對于存在軟弱下臥層的較薄的卵石層，採用錘擊法打入PHC管樁，應註意是否會造成卵石層及其下臥層的整體沉降，從而降低管樁的樁耑承載力，影響施工質量。
통과대모공정PHC관장시공질량화검측과정적분석，결합공정지질조건적변화，연구료지력층급기하와층대장적승재특성적영향，병분석료발생질량사고적원인，연구표명：대우존재연약하와층적교박적란석층，채용추격법타입PHC관장，응주의시부회조성란석층급기하와층적정체침강，종이강저관장적장단승재력，영향시공질량。
Through analyzing the engineering PHC pipe pile construction quality and detection process,combining with the engineering geological condition changing,the paper studies the impact of bearing stratum and its substratum upon pile bearing property,and analyzes quality accident causes. Research results show that:as for thinker pebble stratum existing in soft substratum,it is necessary to consider whether causing pebble stratum and its substratum subsidence while applying driven pile method to adding into PHC pipe pile,which will reduce ultimate pipe pile bear-ing capacity and influence construction quality.
