Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reinforcing ultra-soft soil foundation by combining vacuum preloading without sand cushion layer and hard shell layer
The invention discloses a construction method for reinforcing an ultra-soft soil foundation by combining vacuum preloading without a sand cushion with a hard shell layer, which comprises the following steps: dividing a target ultra-soft soil foundation into a plurality of foundation units, digging a foundation pit in the foundation units, filling the foundation pit with a hard shell layer area, and ensuring that the density of the hard shell layer area is smaller than that of the target ultra-soft soil foundation below the foundation pit; the hard shell layer area is provided with operation equipment for bearing the next foundation unit, the operation equipment continues to excavate and fill the next foundation unit in the hard shell layer area of the current foundation unit so that the next foundation unit can form the hard shell layer area, and the operation equipment continues to excavate and fill the next foundation unit in sequence; the hard shell layer area completely covering the target ultra-soft soil foundation is formed; and sand-cushion-free vacuum preloading operation is conducted on the ultra-soft soil foundation where the hard shell layer area is formed till the current target ultra-soft soil foundation is consolidated and settled to the preset elevation. The problem of air leakage is avoided, the engineering cost is saved, and the engineering safety coefficient is improved.
本发明公开一种无砂垫层真空预压联合硬壳层加固超软土地基施工方法，包括：将目标超软土地基划分若干个地基单元，在地基单元内挖设基坑，并在基坑内填充硬壳层区域，并且硬壳层区域的密度小于基坑下方的目标超软土地基密度，以使得硬壳层区域具备承载用于挖设和填充下一个地基单元的作业设备，作业设备在当前地基单元的硬壳层区域对下一个地基单元继续进行挖设和填充，以使得下一个地基单元形成硬壳层区域，依次继续，直至形成完全覆盖目标超软土地基的硬壳层区域；在形成了硬壳层区域所述超软土地基上进行无砂垫层真空预压作业，直至当前目标超软土地基固结沉降至预设标高。本发明避免出现漏气的问题，节省了工程成本，提高了工程安全系数。
Construction method for reinforcing ultra-soft soil foundation by combining vacuum preloading without sand cushion layer and hard shell layer
The invention discloses a construction method for reinforcing an ultra-soft soil foundation by combining vacuum preloading without a sand cushion with a hard shell layer, which comprises the following steps: dividing a target ultra-soft soil foundation into a plurality of foundation units, digging a foundation pit in the foundation units, filling the foundation pit with a hard shell layer area, and ensuring that the density of the hard shell layer area is smaller than that of the target ultra-soft soil foundation below the foundation pit; the hard shell layer area is provided with operation equipment for bearing the next foundation unit, the operation equipment continues to excavate and fill the next foundation unit in the hard shell layer area of the current foundation unit so that the next foundation unit can form the hard shell layer area, and the operation equipment continues to excavate and fill the next foundation unit in sequence; the hard shell layer area completely covering the target ultra-soft soil foundation is formed; and sand-cushion-free vacuum preloading operation is conducted on the ultra-soft soil foundation where the hard shell layer area is formed till the current target ultra-soft soil foundation is consolidated and settled to the preset elevation. The problem of air leakage is avoided, the engineering cost is saved, and the engineering safety coefficient is improved.
本发明公开一种无砂垫层真空预压联合硬壳层加固超软土地基施工方法，包括：将目标超软土地基划分若干个地基单元，在地基单元内挖设基坑，并在基坑内填充硬壳层区域，并且硬壳层区域的密度小于基坑下方的目标超软土地基密度，以使得硬壳层区域具备承载用于挖设和填充下一个地基单元的作业设备，作业设备在当前地基单元的硬壳层区域对下一个地基单元继续进行挖设和填充，以使得下一个地基单元形成硬壳层区域，依次继续，直至形成完全覆盖目标超软土地基的硬壳层区域；在形成了硬壳层区域所述超软土地基上进行无砂垫层真空预压作业，直至当前目标超软土地基固结沉降至预设标高。本发明避免出现漏气的问题，节省了工程成本，提高了工程安全系数。
Construction method for reinforcing ultra-soft soil foundation by combining vacuum preloading without sand cushion layer and hard shell layer
无砂垫层真空预压联合硬壳层加固超软土地基施工方法
XIE YAO (Autor:in) / HU JUNLONG (Autor:in) / WANG JING (Autor:in) / LIU ZHIJUN (Autor:in) / WANG DEYONG (Autor:in)
09.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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