价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
21期
141-142
,共2页
钻孔灌注桩%后压浆技术%承载特性%研究与应用
鑽孔灌註樁%後壓漿技術%承載特性%研究與應用
찬공관주장%후압장기술%승재특성%연구여응용
bored pile%post grouting technology%bearing characteristics%research and application
钻孔灌注桩后压浆技术是在灌注桩施工完成后对桩底、桩侧进行注浆处理，从而提高单桩承载力，以减弱或消除桩底沉渣、桩侧泥皮等缺陷对基桩承载力的影响，在保证单桩承载力的前提下对桩基础设计施工进行合理优化，缩短桩身长度，降低施工难度和工程造价。本文结合工程经验，对后压浆施工工艺进行研究和探讨，较系统分析了后压浆桩承载力的增强效应与机理，对钻孔灌注桩后压浆工程提供理论指导与实践参考。
鑽孔灌註樁後壓漿技術是在灌註樁施工完成後對樁底、樁側進行註漿處理，從而提高單樁承載力，以減弱或消除樁底沉渣、樁側泥皮等缺陷對基樁承載力的影響，在保證單樁承載力的前提下對樁基礎設計施工進行閤理優化，縮短樁身長度，降低施工難度和工程造價。本文結閤工程經驗，對後壓漿施工工藝進行研究和探討，較繫統分析瞭後壓漿樁承載力的增彊效應與機理，對鑽孔灌註樁後壓漿工程提供理論指導與實踐參攷。
찬공관주장후압장기술시재관주장시공완성후대장저、장측진행주장처리，종이제고단장승재력，이감약혹소제장저침사、장측니피등결함대기장승재력적영향，재보증단장승재력적전제하대장기출설계시공진행합리우화，축단장신장도，강저시공난도화공정조개。본문결합공정경험，대후압장시공공예진행연구화탐토，교계통분석료후압장장승재력적증강효응여궤리，대찬공관주장후압장공정제공이론지도여실천삼고。
The bored pile post grouting technology is carried on grouting treatment for pile bottom and pile side after finished the pile construction to improve the bearing capacity of single pile, reduce or eliminate the influence of pile bottom sediment, mud and other defects on the bearing capacity of the pile foundation, carry on optimization for pile foundation design on the basis of ensuring bearing capacity of single pile, shorten the length of pile, reduce the difficulty of construction and engineering cost. Combined with the engineering experience, the post grouting construction technology is studied and discussed, the effect and mechanism of post grouting pile bearing capacity of bored pile are analyzed, theoretical guidance and practical reference for bored pile post grouting technology are provided.
