探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2013年
9期
59-62
,共4页
抗滑桩%钢管桩%群桩%大直径桩%边坡支护
抗滑樁%鋼管樁%群樁%大直徑樁%邊坡支護
항활장%강관장%군장%대직경장%변파지호
anti-slide pile%steel pipe pile%pile group%large diameter pile%slope support
在坚硬岩体中施工大直径抗滑桩非常困难,需要安全有效的结构设计和合理施工方法的选择。以某基坑支护工程实践为例,大胆创新支护桩结构设计方案,通过在坚硬岩段采用微型钢管群桩代替大桩方案的变更设计,改进了施工工艺,有效地克服了在坚硬岩体中施工大口径桩嵌岩困难的问题,满足了原设计中的嵌岩深度,达到了支护效果。
在堅硬巖體中施工大直徑抗滑樁非常睏難,需要安全有效的結構設計和閤理施工方法的選擇。以某基坑支護工程實踐為例,大膽創新支護樁結構設計方案,通過在堅硬巖段採用微型鋼管群樁代替大樁方案的變更設計,改進瞭施工工藝,有效地剋服瞭在堅硬巖體中施工大口徑樁嵌巖睏難的問題,滿足瞭原設計中的嵌巖深度,達到瞭支護效果。
재견경암체중시공대직경항활장비상곤난,수요안전유효적결구설계화합리시공방법적선택。이모기갱지호공정실천위례,대담창신지호장결구설계방안,통과재견경암단채용미형강관군장대체대장방안적변경설계,개진료시공공예,유효지극복료재견경암체중시공대구경장감암곤난적문제,만족료원설계중적감암심도,체도료지호효과。
It is very difficult to the construct large diameter anti-slide pile in hard rock mass, the safe and effective struc-ture design and reasonable selection of construction methods are necessary.Taking a case of foundation pit supporting engi-neering, with innovative supporting structure scheme, using micro steel pipe piles instead of large pile in hard rocks, and these improved technology effectively overcame the difficulties in large diameter rock-socketed pile construction and met the requirements of original design to achieve the supporting effect.