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1、碱渣地区冲击成孔灌注桩施工要点摘要:机械成孔灌注桩在工程中的应用已非常广泛,尤其是泥浆护壁冲击成孔方法工艺简单、技术成熟,适用范围广,但在人工碱渣回填地区采用机械(冲击)成孔灌注桩,在大连地区乃至东北老工业区改造建设中尚属首例,本文简要阐述在施工中处理塌孔、沉渣过厚、基岩溶洞发育等采用的施工方法及要点。关键词:碱渣、冲击成孔、塌孔、沉渣、溶洞abstract:themechanicalintoholesintheprojectoffillingpileintheapplicationhasverywidely,especiallyslurrysupporting
2、impactholemethodintosimpleprocess,maturetechnology,applicationrange,butinremovingbackfillingarea)bymechanical(impact)intoholesfillingpileindalianareaandeventhenortheastoldindustrialzoneintheconstructionofreformwhichisfirst,thispaperbrieflyexpoundstheconstructionintreatmentofholecolla
3、pse,toothicknessofsediment,bedrockcavedevelopmentoftheconstructionmethodsandkeypoints.keywords:removing,impactintoholes,holecollapse,sediment,cave中图分类号:tu473.1+4文献标识码:a碱渣地区冲击成孔灌注桩施工要点摘要:机械成孔灌注桩在工程中的应用已非常广泛,尤其是泥浆护壁冲击成孔方法工艺简单、技术成熟,适用范围广,但在人工碱渣回填地区采用机械(冲击)成孔灌注桩,在大连地区乃至东北老工业区改造建设中尚属首例,本文
4、简要阐述在施工中处理塌孔、沉渣过厚、基岩溶洞发育等采用的施工方法及要点。关键词:碱渣、冲击成孔、塌孔、沉渣、溶洞abstract:themechanicalintoholesintheprojectoffillingpileintheapplicationhasverywidely,especiallyslurrysupportingimpactholemethodintosimpleprocess,maturetechnology,applicationrange,butinremovingbackfillingarea)bymechanical(impact
5、)intoholesfillingpileindalianareaandeventhenortheastoldindustrialzoneintheconstructionofreformwhichisfirst,thispaperbrieflyexpoundstheconstructionintreatmentofholecollapse,toothicknessofsediment,bedrockcavedevelopmentoftheconstructionmethodsandkeypoints.keywords:removing,impactintoho
6、les,holecollapse,sediment,cave中图分类号:tu473.1+4文献标识码:a碱渣地区冲击成孔灌注桩施工要点摘要:机械成孔灌注桩在工程中的应用已非常广泛,尤其是泥浆护壁冲击成孔方法工艺简单、技术成熟,适用范围广,但在人工碱渣回填地区采用机械(冲击)成孔灌注桩,在大连地区乃至东北老工业区改造建设中尚属首例,本文简要阐述在施工中处理塌孔、沉渣过厚、基岩溶洞发育等采用的施工方法及要点。关键词:碱渣、冲击成孔、塌孔、沉渣、溶洞abstract:themechanicalintoholesintheprojectoffillingpileinth
7、eapplicationhasverywidely,especiallyslurrysupportingimpactholemethodintosimpleprocess,maturetechnology,applicationrange,butinremovingbackfillingarea)bymechanical(impact)intoholesfillingpileindalianareaandeventhenortheastoldindustrialzoneintheconstructionofreformwhichisfirst,thispaper
8、brieflyexpou