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A platform for research: civil engineering, architecture and urbanism
Consolidation grouting combined double-row steel pipe pile supporting method and structure for ultra-deep foundation pit with miscellaneous fill
The invention relates to a consolidation grouting combined double-row steel pipe pile supporting method for an ultra-deep foundation pit with miscellaneous fill. The method comprises the following steps of positioning and unwinding, steel pipe pile drilling and mounting, steel pipe pile pressure grouting, floral pipe grouting, crown connecting beam pouring, stage excavation, post-impact self-propelled anchor rod construction and surface layer and waist beam construction. According to the consolidation grouting combined double-row steel pipe pile supporting method for the ultra-deep foundationpit with the miscellaneous fill, the problem that supporting piles and walls cannot be constructed under the condition that the ultra-deep foundation pit with the miscellaneous fill on the upper halfportion and rock on the lower half portion is close to a building is solved, and a combine supporting technology is used, so that the disturbance to the foundation pit is greatly relieved, and the safety of the existing building is effectively protected.
本发明涉及一种杂填土超深基坑固结注浆结合双排钢管桩支护方法，包括下列步骤，定位放线，钢管桩钻孔、安装，钢管桩压力注浆，花管注浆，冠连梁浇筑，分层开挖，后冲击自进式锚杆施工，面层及腰梁施工。本发明解决了临近建筑物在上半部杂填土、下半部岩石的超深基坑的情况下，支护桩、墙无法施工的问题，利用组合支护技术，极大减轻了对基坑的扰动，有效地保护了既有建筑物的安全。
Consolidation grouting combined double-row steel pipe pile supporting method and structure for ultra-deep foundation pit with miscellaneous fill
The invention relates to a consolidation grouting combined double-row steel pipe pile supporting method for an ultra-deep foundation pit with miscellaneous fill. The method comprises the following steps of positioning and unwinding, steel pipe pile drilling and mounting, steel pipe pile pressure grouting, floral pipe grouting, crown connecting beam pouring, stage excavation, post-impact self-propelled anchor rod construction and surface layer and waist beam construction. According to the consolidation grouting combined double-row steel pipe pile supporting method for the ultra-deep foundationpit with the miscellaneous fill, the problem that supporting piles and walls cannot be constructed under the condition that the ultra-deep foundation pit with the miscellaneous fill on the upper halfportion and rock on the lower half portion is close to a building is solved, and a combine supporting technology is used, so that the disturbance to the foundation pit is greatly relieved, and the safety of the existing building is effectively protected.
本发明涉及一种杂填土超深基坑固结注浆结合双排钢管桩支护方法，包括下列步骤，定位放线，钢管桩钻孔、安装，钢管桩压力注浆，花管注浆，冠连梁浇筑，分层开挖，后冲击自进式锚杆施工，面层及腰梁施工。本发明解决了临近建筑物在上半部杂填土、下半部岩石的超深基坑的情况下，支护桩、墙无法施工的问题，利用组合支护技术，极大减轻了对基坑的扰动，有效地保护了既有建筑物的安全。
Consolidation grouting combined double-row steel pipe pile supporting method and structure for ultra-deep foundation pit with miscellaneous fill
一种杂填土超深基坑固结注浆结合双排钢管桩支护方法及结构
WU PAN (author) / DONG WEINA (author) / XIN JUN (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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